RU2266195C2 - Method and device for splicing of dried fibers intended for production of fiber boards - Google Patents

Abstract

FIELD: methods and devices for splicing of dried fibers.

SUBSTANCE: the dried fibers intended for production of fiber boards are fed to a roller for fibers from a portioner through a charging chute that is under action of negative pressure. The roller for fibers has a great number of pins on its surface and rotates in such a manner that the fibers deflect from their direction by the pins and get accelerated to the peripheral speed of the roller for fibers by the pins and air flow developed by the pins. The fibers are pressed to the machine sections and get spliced in the machine section or near one end of the machine section and come out in the outlet of the chute section. In the alternative process after the outcome from the chute section essentially in the horizontal direction the fibers deflect upwards or downwards and get spliced in this zone by means of at least one spray nozzle.

EFFECT: provided moistening of a large area of the fiber surface with a great degree of uniformity.

71 cl, 30 dwg

Description

The invention relates to methods and devices for gluing dried fibers for the production of wood-fiber boards.

The fibers are preferably composed of materials containing lignocellulose and / or cellulose. Fiberboard is light, medium density and high density.

Typically, fibers intended for medium density boards (PSP) or high density boards (PVP) are glued in the wet state. Through this so-called "blow" bonding system, a binder is injected into the blow tube, which ends in the area of the inlet of the dryer pipe behind the refiner, directly onto the wet, still hot fibers. Then the fibers are dried. The bonding system in the blow bonding system makes it possible to glue the fibers evenly and thus eliminate the formation of lumps consisting of glue and fibers. However, one significant drawback of the system is the relatively high adhesive consumption (see, for example, Buchholzer, P., “Leimverlusten auf der Spur” (“Following the Traces of Adhesive Losses”), pp. 22-24, MDF-Magazin, 1999). The increased consumption of glue is a consequence of the fact that part of the reactivity of the glue in the process of drying the fibers is lost due to high temperatures. Therefore, a significant release of formaldehyde from glue is observed in the dryer-pipe system, as a result of which it is necessary to introduce an expensive process to reduce pollutants. A further disadvantage of the bonding system in the blow bonding system is that the fibers that are bonded in this way have a low level of cold adhesion due to pre-curing in the dryer tube, so that after pre-pressing the fibrous mat formed from the fibers has a tendency to spring back . When a fiber mat is pressed, its structure may be destroyed due to the displacement of a large amount of air from the fiber mat.

The disadvantages of the blow bonding system can also be eliminated by gluing the fibers in a dry state. Therefore, a known method for bonding dried fibers in metal rolls. However, the process of gluing fibers in a dry form in mixing devices has a drawback, which consists in the formation of clusters of fibers and tangled fibers, which leads to uneven bonding of fibers and undesirable formation of glue stains on the surfaces of the plates (see link). A dry gluing machine for gluing fibers in which mixing means can be provided is described in EP 0 744 259 B1.

EP 0728562 A2 describes a process for bonding fibers in a dry state, where the fiber flow is separated in the pneumatic feed line by creating large turbulence due to a decrease in the flow rate, and the fibers in this separation zone are wetted by spraying.

DE 19930800 A1 describes a process for gluing fibers in a dry state, in which a gluing process is performed in the end section of a dryer pipe. In our opinion, we do not yet have data on this process in industrial trials. It seems that the disadvantage of this process is that an extremely large proportion of hot gas and water vapor together with the fibers must pass through the bonding zone, since it is necessary that the glue is sprayed onto the smallest particles after being injected into the bonding zone. If this proportion of hot gas and water vapor in the process is separated from the fibers immediately after the gluing process using a cyclone separator, it should be assumed that part of the adhesive is released into the atmosphere together with the hot gas and water vapor from the fiber mixture. In addition, problems with uniform bonding may occur in this known process due to erratic air turbulence. In addition, it turned out that in this process it is difficult to control the dried moisture of the fibers within acceptable limits of +/- 0.5% of the required value, which is very important for subsequent processing.

It should also be mentioned that gluing devices such as the so-called “roller mixer” have been known for some time, in which glue is applied to wood particles using rollers (Maloney, Thomas M., “Modern Particleboard Dry-process Fiberboard Manufacturing”, page 439, Miller Freeman Publ. 1977, San Francisco, Ca., USA). ("The Modern Production of Chipboard and Fiberboard by Dry Method", Thomas M. Maloney, p. 439, ed. Miller Freeman, 1977, San Francisco, USA).

The aim of the invention is to wet the binder with as many fiber surfaces as possible with a high degree of uniformity.

This goal is achieved by creating a method for bonding dried fibers intended for the production of wood-fiber boards, in which according to the invention

(a) the fibers are fed to the fiber roll by the dispenser through the loading chute, which is subjected to negative pressure, while the fiber roll has a plurality of pins on its surface and rotates in such a way

(b) that the fibers deviate from their direction with the pins, are guided along the section of the trough, which is formed by a partial section of the periphery of the fiber roller and the opposite wall and adhesive, and that these fibers are accelerated to approximately the peripheral speed of the fiber roller by the pins and the air flow generated by these with pins

(c) wherein the fibers are displaced from the fiber roll due to centrifugal force and are pressed against the wall section, not yet coming into contact with the pins,

(g) the fibers are bonded in the area of the wall section or near one end of the wall section,

(e) and the fibers are discharged from the outlet of the trough section.

Preferably, the wall section or the first wall section to which the fibers are pressed is formed starting after about one quarter of the periphery of the fiber roller after the fibers hit the fiber roller.

Preferably, the fibers are glued with slotted glue nozzles.

Preferably, the fibers are glued with spray nozzles.

Preferably, the fibers fall onto the glue board in the area of the glue nozzles for glue.

Preferably, the adhesive board is set at an adjustable angle with respect to the direction of flow of the fibers in order to deflect the fibers in a certain way and to control the pressure of the fibers on the adhesive board.

Preferably, in the area of the slit nozzles for glue, the fibers are tangentially fed to the glue roller, which rotates in the direction of movement of the fibers.

Preferably, the speed at which the fibers are fed to the fiber roll can be determined by controlling the negative pressure prevailing in the feed chute.

These goals are also achieved by creating a method for gluing dried fibers intended for the production of wood-fiber boards, in which according to the invention

(a) the fibers are fed to the fiber roll by the dispenser through the loading chute, which is subjected to negative pressure, while the fiber roll has a plurality of pins on its surface and rotates in such a way

(b) that the fibers deviate from their direction with the pins, are guided along the section of the trough, which is formed by a partial section of the periphery of the fiber roller and the opposite wall and adhesive, and that these fibers are accelerated to approximately the peripheral speed of the fiber roller by the pins and the air flow generated by these with pins

(c) wherein the fibers are displaced from the fiber roll due to centrifugal force and are pressed against the wall section, not yet in contact with the pins, and in which the fibers are again brought into contact with the pins at least once along the wall using a metal reflective plate which is inclined like a slope in the direction of the pins, and then these fibers are pressed to the next section of the wall (21) by centrifugal force,

(d) the fibers are bonded in the area of one of the wall sections, between the wall sections or near one end of the last wall section in the direction of the fiber flow,

(e) and the fibers are discharged from the outlet of the trough section.

Preferably, the wall section or the first wall section to which the fibers are pressed is formed starting after about one quarter of the periphery of the fiber roller, after the fibers hit the fiber roller.

Preferably, the fibers are glued with slotted glue nozzles.

Preferably, the fibers are glued with spray nozzles.

Preferably, the fibers fall onto the glue board in the area of the glue nozzles for glue.

Preferably, the adhesive board is set at an adjustable angle with respect to the direction of flow of the fibers in order to deflect the fibers in a certain way and to control the pressure of the fibers on the adhesive board.

Preferably, in the area of the slit nozzles for glue, the fibers are tangentially fed to the glue roller, which rotates in the direction of movement of the fibers.

Preferably, the speed at which the fibers are fed to the fiber roll can be determined by controlling the negative pressure prevailing in the feed chute.

These goals are also achieved by creating a method for gluing dried fibers intended for the production of wood-fiber boards, in which according to the invention

a) the fibers are fed to the fiber roller by the dispenser through the loading chute, while the fiber roller has many pins on its surface and rotates in such a way

b) that the fibers deviate from their direction by the pins, are directed along the section of the trough, which is formed by a partial section of the periphery of the fiber roller and the opposite wall, and these fibers are accelerated to approximately the peripheral speed of the fiber roller by the pins and the air flow generated by these pins,

c) the fibers are brought out in a substantially horizontal direction of movement from the outlet of the trough section,

d) the fibers are sucked down and thus deflected, and

e) the fibers adhere in the deflection zone by means of at least one spray nozzle which ejects glue and air.

Preferably, in step (b), the centrifugal force causes the fibers to press against the wall before they come in contact with the pins, and along the wall of the fiber they are again brought into contact with the pins using a metal reflective plate that is inclined like a slope in the direction of the pins, and then the fibers pressed against the wall by centrifugal force.

Preferably, the fibers are deflected into the channel of the pneumatic conveyor, and there are two rows of opposing spray nozzles between which the fibers deflect.

Preferably, the speed at which the fibers are fed to the fiber roll can be determined by controlling the negative pressure prevailing in the feed chute.

These goals, in addition, are achieved by creating a method for bonding dried fibers intended for the production of wood-fiber boards, in which according to the invention

a) the fibers are fed to the fiber roller by the dispenser through the loading chute, while the fiber roller has many pins on its surface and rotates in such a way

b) that the fibers deviate from their direction by the pins, are directed along the section of the trough, which is formed by a partial section of the periphery of the fiber roller and the opposite wall, and these fibers are accelerated to approximately the peripheral speed of the fiber roller by the pins and the air flow generated by these pins,

c) the fibers are brought out in a substantially horizontal direction of movement from the outlet of the trough section,

d) the fibers are sucked up and thus deflected, and

e) the fibers adhere in the deflection zone by means of at least one spray nozzle which ejects glue and air.

Preferably, in step (b), the centrifugal force causes the fibers to press against the wall before they come in contact with the pins, and along the wall of the fiber they are again brought into contact with the pins using a metal reflective plate that is inclined like a slope in the direction of the pins, and then the fibers pressed against the wall by centrifugal force.

Preferably, the fibers are deflected into the channel of the pneumatic conveyor, and there are two rows of opposing spray nozzles between which the fibers deflect.

Preferably, the speed at which the fibers are fed to the fiber roll can be determined by controlling the negative pressure prevailing in the feed chute.

Additionally, these goals are achieved by creating a method for bonding dried fibers intended for the production of wood-fiber boards, in which according to the invention create two symmetrical, located opposite the flow of fibers, in which the fibers are glued in the same manner as in any of the previous methods, and the flows of fibers collide with each other after exiting from the outlet of the trench section.

These goals are achieved, among other things, by creating a device for gluing dried fibers for the production of wood-fiber boards, in which according to the invention a loading chute is located under the outlet of the fiber dispenser, which can be subjected to negative pressure from the outlet to the roller for fibers having a plurality of pins on its surface and rotatable in such a way that the fibers falling on the fiber roller are pinned, guided along the trough section, which is formed by a partial section of the periphery of the fiber roll and the opposite wall, and which extends from the outlet of the feed chute in the direction of rotation of the fiber roll and has a fiber exit, and these fibers are accelerated to approximately the peripheral speed of the roll for fibers with pins and an air stream generated by these pins, in which, due to centrifugal force, the fibers are displaced from the fiber roller and pressed against the section and walls, not yet coming into contact with the pins, the gutter section also being formed by means for gluing fibers, which are located in the area of the wall section or near one end of the wall section.

Preferably, the adhesive means comprises slotted nozzles for glue that are located along the width of the wall of the gutter section.

Preferably, the adhesive means comprise spray nozzles that are located across the width of the wall of the gutter section.

Preferably, the slotted nozzles for the adhesive are arranged to be tangentially aligned with the adhesive board located close to it.

Preferably, the adhesive board is configured to be mounted at an adjustable angle with respect to the direction of flow of the fibers so as to be able to deflect the fibers to varying degrees and thereby provide a change in the pressure of the fibers on the adhesive board.

Preferably, the glue nozzles for glue are arranged to be tangentially aligned with a rotating glue roller located close to it.

Preferably, the device comprises means for two symmetrical, oppositely arranged fiber streams for bonding, the fiber streams colliding with each other after exiting the outlet of the trench section.

These goals are achieved due to the fact that in the device for gluing dried fibers intended for the production of wood-fiber boards, according to the invention, a loading chute is located under the outlet of the fiber dispenser, which can be subjected to negative pressure passing from the outlet to the roller for fibers, which has a plurality of pins on the surface and can rotate in such a way that the fibers falling on the fiber roller are deflected by pins, directed along the gutter section a, which is formed by a partial section of the periphery of the roller and the opposite wall and which extends from the outlet of the loading chute in the direction of rotation of the fiber roller and has an exit hole for the fibers, and these fibers are accelerated to approximately the peripheral speed of the fiber roller by the pins and air flow generated by these pins, where due to the centrifugal force, the fibers are displaced from the fiber roller and pressed against the wall section, not yet coming into contact with the pins, which is located in the trench section at least one metal reflective plate which is inclined like a slope and which again brings the fibers into contact with the pins, where the fibers are then pressed against the next wall section by centrifugal force, and that the gutter section is also formed by means for bonding fibers which are located in the area of one from wall sections, between two wall sections or near one end of the last wall section in the direction of fiber flow.

Preferably, the adhesive means comprises slotted nozzles for glue that are located along the width of the wall of the gutter section.

Preferably, the adhesive means comprise spray nozzles that are located across the width of the wall of the gutter section.

Preferably, the slotted nozzles for the adhesive are arranged to be tangentially aligned with the adhesive board located close to it.

Preferably, the adhesive board is configured to be installed at an adjustable angle with respect to the direction of flow of the fibers, so as to be able to deflect the fibers to varying degrees, and thus provide a change in the pressure of the fibers on the adhesive board.

Preferably, the glue nozzles for glue are arranged to be tangentially aligned with a rotating glue roller located close to it.

Preferably, the device comprises means for two symmetrical, oppositely arranged fiber streams for bonding, the fiber streams colliding with each other after exiting the outlet of the trench section.

These goals are also achieved by the fact that in the device for gluing dried fibers intended for the production of wood-fiber boards, according to the invention, a loading chute is located under the outlet of the fiber dispenser, which can be subjected to negative pressure from the outlet to the fiber roller , which on its surface has many pins and is made to rotate so that the fibers falling on the fiber roller are deflected by pins, for example flow along the trough section, which is formed by a partial section of the periphery of the fiber roll and the opposite wall and which extends from the outlet of the feed chute in the direction of rotation of the fiber roll and is provided with an outlet, and these fibers are accelerated to approximately the peripheral speed of the fiber roll by pins and air flow created by these pins that the fibers are discharged through the outlet in a substantially horizontal direction of travel, which is close to the outlet In the gutter section, there is an inlet of the pneumatic conveyor, into which the fibers are deflected in a downward direction, and that in the deflection zone there are spray nozzles that are installed for gluing the fibers with ejected glue and air.

Preferably, due to the centrifugal force in the gutter section, the fibers are pressed against the wall, not yet in contact with the pins, and at least one metal reflective plate is located on the wall, which is inclined like a slope, so that the fibers come into contact with the pins again and then are pressed against wall by centrifugal force.

Preferably, two rows of opposing spray nozzles are mounted in the inlet of the pneumatic conveyor.

Preferably, the device comprises means for two symmetrical, oppositely arranged fiber streams for bonding, the fiber streams colliding with each other after exiting the outlet of the trench section.

These goals, in addition, are achieved due to the fact that in the device for gluing dried fibers intended for the production of wood-fiber boards, according to the invention, under the outlet of the dispenser for fibers there is a loading chute, which can be affected by negative pressure passing from the outlet to the fiber roll, which has a plurality of pins on its surface and is rotatable so that the fibers falling on the fiber roll are deflected by the pins are guided along the trough section, which is formed by a partial section of the periphery of the fiber roll and the opposite wall and which extends from the outlet of the feed chute in the direction of rotation of the fiber roll and has an exit hole, and these fibers are accelerated to approximately the peripheral speed of the fiber roll by pins and flow air created by these pins that the fibers are ejected through the outlet in a substantially horizontal direction of travel, which is close to the outlet A part of the trough section is the inlet of the pneumatic conveyor, into which the fibers are deflected in the upward direction, and that spray nozzles are located in the deflection zone, which are provided for gluing the fibers with ejected glue and air.

Preferably, due to the centrifugal force in the gutter section, the fibers are pressed against the wall, not yet in contact with the pins, and at least one metal reflective plate is located on the wall, which is inclined like a slope, so that the fibers come into contact with the pins again and then are pressed against wall by centrifugal force.

Preferably, two rows of opposing spray nozzles are mounted in the inlet of the pneumatic conveyor.

Preferably, the device comprises means for two symmetrical, oppositely arranged fiber streams for bonding, the fiber streams colliding with each other after exiting the outlet of the trench section.

The invention will be explained in detail below with reference to the examples of execution, in which reference will be made to the drawings, in which:

FIG. 1a is a schematic partial view of a gluing device having slotted nozzles for glue in which glued fibers are sucked down,

FIG. 1b is a schematic partial view of a gluing device having slotted nozzles for glue, in which glued fibers are sucked up,

FIG. 1c is a schematic partial view of a gluing device that is different from the gluing device shown in FIG. 1a, only with respect to the area of the adhesive board,

FIG. 1d is a schematic partial view of a gluing device that is different from the gluing device shown in FIG. 1a, only with respect to the area of the outlet of the trough section,

FIG. 1e is a schematic partial view of a gluing device that is different from the gluing device shown in FIG. 1a, only with respect to the area of the outlet of the trough section,

FIG. 1f is a schematic partial view of the gutter section of the gluing device, which, with the exception of the metal reflection plates in the gutter section, is made in the same way as one of the gluing devices shown in FIG. 1a-1e.

FIG. 2a is a schematic partial view of a gluing device having slotted nozzles for glue and a rotating glue roller in which glued fibers are sucked down,

FIG. 2b is a schematic partial view of a gluing device having slotted nozzles for glue and a rotating glue roller in which glued fibers are sucked up,

FIG. 2c is a schematic partial view of a gluing device that is different from the gluing device shown in FIG. 2a, only with respect to the area of the glue roll,

FIG. 2d is a schematic partial view of a gluing device that is different from the gluing device shown in FIG. 2a, only with respect to the area of the outlet of the trough section,

FIG. 2e is a schematic partial view of a gluing device that is different from the gluing device shown in FIG. 2a, only with respect to the area of the outlet of the trough section,

FIG. 3a is a schematic partial view of a gluing device having an adhesive roller in which glued fibers are sucked down,

FIG. 3b is a schematic view of a section of the surface profile of the glue roll shown in FIG. 3a

FIG. 3c is a schematic partial view of a gluing device having an adhesive roller in which glued fibers are sucked up,

FIG. 3d is a schematic partial view of a gluing device that is different from the gluing device shown in FIG. 3a, only with respect to the area of the glue roll,

FIG. 4a is a schematic partial view of a gluing device having spray nozzles for glue in which glued fibers are sucked down,

FIG. 4b is a schematic partial view of a bonding device having spray nozzles for glue in which glued fibers are sucked up,

FIG. 5a is a schematic partial view of a gluing device in which there are two symmetrical, opposed, fiber flows, and the glued fibers are sucked down,

FIG. 5b is a schematic partial view of a gluing device in which there are two symmetrical, opposed fiber flows, the glued fibers being sucked up,

FIG. 6a is a schematic partial view of a bonding device having an integrated fiber screening device, wherein the bonded fibers are sucked down,

FIG. 6b is a schematic partial view of a bonding device having an integrated fiber screening device, wherein the bonded fibers are sucked up,

FIG. 7a is a schematic top view of the ribbed surface profile of the adhesive board shown in FIG. 1, or the glue roll shown in FIG. 2

FIG. 7b is a sectional view of the ribbed profile shown in FIG. 7a

FIG. 7c is a schematic top view of a nail-shaped surface profile of the adhesive board shown in FIG. 1, or the glue roll shown in FIG. 2

FIG. 7d is a sectional view of a nail-like profile shown in FIG. 7s

FIG. 7e is a schematic plan view of a stepped profile of the surface of the adhesive board shown in FIG. 1, or the glue roll shown in FIG. 2

FIG. 7f is a sectional view of the stepped profile shown in FIG. 7th

FIG. 8a is a schematic partial view of a gluing device for a stepwise gluing process in which glued fibers are sucked down in each case,

FIG. 8b is a schematic partial view of a bonding device for a stepwise bonding process in which bonded fibers are sucked up in each case,

FIG. 8c is an enlarged section of FIG. 8a, and

FIG. 8d — Slips the enlarged portion of FIG. 8b.

The bonding device shown in FIG. 1a, comprises a transverse fiber distribution device 2 connected to an outlet 1 of a fiber dryer (not shown). A metering hopper 3 is connected to the transverse fiber distribution device 2, which is evenly filled with dried wood fibers 4 using a transverse distribution device 2. By means of the support conveyor 5, the wood fibers 4 are fed into the outlet of the metering hopper having rollers 6 of the discharge conveyor, which serve to eliminate more or less large lumps of fibers 4. The support conveyor 5 passes through a weighing device 7, which continuously records m passing current weight of material (weight per unit time).

Fibers 4 pass from the outlet of the metering hopper into the loading chute 10, which is formed by two working walls 8 and 9 and which contains an air supply 11 at the upper end.

Using the fan 12 of the pneumatic conveyor 13, partially shown in FIG. 1a and having a partial section cooperating with the bonding device, the mixture of fibers and air is drawn into the loading chute 10, where the fibers move with acceleration in the fiber stream 14 along the working wall 9, and the air moves with acceleration in the air flow along the working wall 8. To the working an electromagnet 15 is attached to the wall 9 to separate the metal parts from the fiber stream 14.

In the area of the outlet 16 of the loading chute 10, the fiber stream 14 enters the fiber roller 17, which serves to grind irregularities in the fiber stream 14 and to accelerate the fibers in the fiber stream 14. On the surface of the fiber roller 17 there are many pins that taper conically, forming a tip as the distance from the axis of rotation of the roller 17 for fibers increases. The fiber roller 17 rotates at a high speed in the direction of rotation shown by arrow 19. The peripheral speed of the fiber roller 17 varies and can range from 20 to 100 m / s. The diameter of the roller 17 for fibers can be up to 1000 mm, and the length of the roller 17 can be 1800 mm. In this case, the number of conical pins 18 can reach 10,000.

A partial section 20 of the periphery of the fiber roller, a wall 21 located opposite the fiber roller 17, and the adhesive means described below form a section of the groove 22, which extends from approximately the outlet 16 of the loading chute 10 to the lowest point of the fiber roller 17 and this section contains an outlet 23. The extension of the wall 21 is made in such a way that the distance between the tips of the pins 18 and the wall 21 gradually increases from the inlet 24 of the section of the groove 22 located near the outlet ment 16 chute 10 to the outlet 23. The wall 21 from the outside substantially throughout its length is provided with a cooling jacket 25 of cooling water.

In the area of the outlet 23 over the entire width of the section of the groove 22 is a series of slotted nozzles 26 for glue. The outlet openings of the glue nozzles 26 for glue are located in the gap 27, which is formed by the lower end of the wall 21 and the glue board 28. Each glue nozzle 26 receives glue using a separate piston pump 29, through the connecting pipe 30 from the outlet container 31, which has a weighing outlet device 32 for glue. For example, if the width of the processing process is 1800 mm, 25 slotted nozzles 26 for glue are provided, with a slit length of 72 mm and a slit width of 2 mm. The number of slotted nozzles may vary arbitrarily. The glue pumps 29 are preferably driven by a common drive shaft 33 and a common drive 34. This ensures a uniform feed rate of the glue pumps 29. You can also use pumps with an individual drive. The adhesive board 28, which is directly adjacent to the slotted nozzles 26 for glue, is located across the entire width of the section of the gutter 21. Their position can be adjusted at an angle to the section of the gutter 22.

The adhesive board 28 has a ribbed profile on its surface, as shown in FIG. 7a and 7b. The ribbed profile consists of elevations 101 with a base 102 and a blade 103 perpendicular to the adhesive board 28. The base 102 comprises an elongated surface of the base having contours concave to the edges that converge at a point at the ends of the base surface. Elevations 101 are arranged in parallel rows 104, perpendicular to the direction of movement of the fibers, as indicated by arrow 105. In each row 104, the elevations are aligned in the same manner and, moreover, at an acute angle with respect to the direction of movement 105, i.e. in the direction in which the adhesive board 28 operates. Depending on the row of elevation, 101 rows 104, alternating, contain a positive acute angle or a negative acute angle with the direction of movement 105, as a result of which the rows 104 are offset from each other.

Alternatively, the adhesive board 28 may also comprise a nail profile, as shown in FIG. 7c and 7d. This nails profile consists of conical nails 106, which, in turn, are arranged in rows offset from each other and extend perpendicular to the direction of travel 105. In addition, the surface of the adhesive board 28 may also comprise a stepped profile shown in FIG. 7e and 7f. In the case of such a stepped profile, steps 107 are provided that rise in the direction of travel 105.

The section of the groove 22 exits into the pneumatic conveyor 13. The speed at which the flow of fibers 14 in the loading chute 10 moves in the direction of the outlet 16 can be controlled by an air throttle 35 in the upper section of the channel 40 of the pneumatic conveyor 13 so that the negative pressure generated by the fan 12 varies in the area of the roller 17 for fibers.

Due to the fact that the flow of fibers 14 in the area of the outlet 16 enters the roller 17 for fibers, which rotates at high speed, and the pins contain a velocity component that acts at right angles to the direction of flow of the fibers 14, the twisted or accumulated fibers are separated from each other , almost without prejudice to individual fibers from the effects of the roller 17.

In addition, the fibers deviate from their direction by means of a fiber roller 17 into the section of the groove 22. In the first part of the section of the groove 22, the inertia of the fibers serves not only to comb the fibers and, therefore, grind the fiber bundles, but also to accelerate the fibers to approximately peripheral speed roller 17 for fibers. In the bonding device, this fiber speed is achieved after about one quarter of the periphery of the fiber roller 17. In this zone of the section of the groove 22, the fibers in the fiber stream 36 are stretched, multiplying the flow of fibers 14 in the loading chute 10. The plurality of conical pins 18 serves to create an air stream in the section of the groove 22, which approximately corresponds to the peripheral speed of the fiber roller 17. Due to the radially directed forces of air and fibers, the fibers in the trough section 22, under the influence of centrifugal force, rush out and press against the inner side of the wall 21 of the trough 22 section, which is why the conical pins 18 of the fiber roller 17 are no longer in contact with the fibers in the trough section 22 after passing a quarter of the periphery of the fiber roller 17.

Due to the separation of the fiber stream 36, which occurs as a result of the stretching of the fibers, and because the adhesive flows over the entire width of the fiber stream 36, a large contact surface is formed for receiving the adhesive.

Glue board 28 serves to deflect the flow of fibers 36 in the plane of the hood. The fibers exert pressure on the adhesive board 28, which can be adjusted by adjusting the angle at which the adhesive board 28 is located relative to the trough section 22. The adhesive 37 enters the fibers by mechanical abrasion of the adhesive 37 on the adhesive board 28. The ribbed profile serves to significantly increase the friction of the fibers on the surface of the adhesive board 28 is a relatively smooth surface. The alternating oblique arrangement of the elevations 101 also serves to deflect the fibers in many directions, which results in a static deep mixing of the fibers and glue 37. Thus, an extremely effective mixing of the fibers and glue 37 takes place. The same happens when the said nail-like profile is used. In particular, if the surface of the adhesive board 28 is provided with the aforementioned stepped profile, the pressure of the fibers on the adhesive board 28 increases. However, steps 107 create swirls of fibers, and thus static deep mixing of the fibers and glue 37 is achieved. The glue is dosed according to a certain percentage of glue to absolutely dry fibers relative to the amount of passing fiber recorded by the weighing device 7 of the metering hopper 3.

After gluing, the fibers exit the section of the chute 22 and are deflected by gravity and conveying air passing in the direction of arrow 38 into the exhaust hood 39 of the pneumatic conveyor 13 under the fiber roller 17. The conveying air is preferably return air, which is sent to a closed circuit, or fresh air.

In all the figures of the drawings, the same parts are denoted by the same reference numerals.

The embodiment of FIG. 1b differs from the embodiment shown in FIG. 1a, in that the glued fibers are sucked up using a pneumatic conveyor 13.

The exemplary embodiment shown in FIG. 1c differs from the implementation example shown in FIG. 1a, by a modified arrangement of the adhesive board 28 and the slotted nozzles 26 for glue. The adhesive board 28 is positioned at an adjustable angle with respect to the direction of flow of the fibers 36 so that the flow of fibers 36 is deflected toward the pins 18 of the fiber roller 17. As a result, the fibers are again captured and intercepted by pins 18, since the flow of fibers 36 greatly slows down the movement due to deflection and the presence of glue. The renewed action of the pins 18 on the flow of fibers 36, which are provided with glue, serves to intensify the bonding process, compared with the process that is performed using the device shown in FIG. 1a. The position of the slotted nozzles 26 for glue can be adjusted according to the angular position of the adhesive board 28 relative to the wall 21 of the section of the groove 22.

The implementation example shown in FIG. 1d, contains spray nozzles 41, which are located in the area of the outlet 23 of the section of the groove 22 over its entire working width. The slotted nozzles 26 for glue and the adhesive board 28 are located downstream of the spray nozzles 41 in the direction of rotation 19 of the fiber roller 17. Spray nozzles 41 serve to spray a portion of the supplied amount of glue onto the fibers, with the remainder of the glue sprayed onto the fibers using the glue nozzles 26. Since the fibers are guided through the adhesive board 28, they are mixed statically. In addition, the glue that exits the glue nozzles 26 for glue is transferred through the glue board 28 to the fibers. The glue board 28 can be installed at an adjustable angle relative to the direction of flow of the fibers so that the fibers are recycled to the working area of the pins 18 of the roller 17 for fibers.

The implementation example shown in FIG. 1e differs from the implementation example shown in FIG. 1d, in that there are no slot nozzles for glue. The amount of glue supplied is released solely by spray nozzles 41. After the fibers are sprayed with glue, they are mixed statically on the glue board 28, which contributes to their efficient bonding. The adhesive board 28 is installed at an adjustable angle relative to the direction of movement of the fibers so that the fibers are then recycled to the working area of the pins 18 of the fiber roller 17. This, in turn, contributes to further fiber mixing.

With the exception of the metal reflection plates 42 in the trough section 22, the embodiment shown in FIG. 1f is made like one of the bonding devices shown in FIG. 1a-1e. Metal reflective plates 42 are located entirely across the entire working width of the section of the groove 22.

They are inclined like a slope in the direction of flow of the fibers in order to deflect the fibers towards the pins 18 of the fiber roller 17. At the same time, the movement of the fibers slows down and they are captured by the pins 18, which move at a higher speed, as a result of which any irregularities in the fiber stream 36 can again be crushed. After the pins 18 accelerate the fibers and reach the peripheral speed of the pins 18, the centrifugal force causes the fibers to press against the wall 21. As shown by arrow 43, the position of the metal reflection plates 42 can be adjusted at an angle with respect to the flow direction of the fibers 36, whereby, in particular, the degree of retardation can be adjusted Ia fibers. Preferably, it is possible to arrange several metal reflective plates 42 along the section of the groove 22, therefore, several sections of the walls to which the fibers are pressed are obtained. Two of these wall sections are shown in FIG. 1f and are indicated by numeral 21a and 21b. Between the wall sections 21a and 21b there is a zone in which the flow of fibers 36 is combed through the pins 18.

The implementation example shown in FIG. 2a, contains glue nozzles 26 for glue, which are also located near the outlet 23 of the gutter section 22. Near the glue nozzles 26 for glue there is an adhesive roller 45, which forms a section of the gutter 22 at the outlet 23. The glue roller 45 with the outer surface 46 is slightly extended section of the groove 22 so that the fiber stream 36 falls tangentially to the outer surface 46. The slotted nozzles 26 for glue are located in the same plane along the entire width of the fiber roller 17 and so that they eject glue 37 approximately parallel to the fiber stream 36, to which falls onto the fiber roller 17.

The glue roll 45 serves as the glue board that rotates in the direction of arrow 47. Its outer surface 46, like the glue board 28, has a ribbed profile, as shown in FIG. 7a and 7b. Alternatively, a nail profile may be provided, as shown in FIG. 7c and 7d, or step profile, as shown in FIG. 7e and 7f. When an adhesive roller 45 is used, these profiles provide the same advantages as the adhesive board 28 described above. The outer surface 46 is chrome plated. Approximately diametrically opposed to the outlet 23 near the glue roller 45 is a rotating brush 48, which is in contact with the outer surface 46 and the container 49 containing the wash water, and rotates in the same direction as the roller 17 for fibers. The shape of the outer surface 46 and the rotational movement of the glue roller 45 make it possible to remove any contamination from the adhesive by the adhesive in the area where the glue is transferred to the fiber stream 36 and the contamination is continuously removed by the brush 48. In this way, the internal contamination of the gutter section 22 is eliminated and reduced to minimum formation of clusters of fibers.

In addition, a number of spray nozzles 50 (only one shown) are located near the glue roller 45, which can be used to deposit an accelerator (catalyst) on the outer surface 46 of the glue roller 45. Instead of the spray nozzles 50, various nozzles can be used. Each spray nozzle 50 is connected by a connecting pipe 51 to an accelerator outlet container 53, which includes a diverting weighing device 52. The accelerator is transmitted by pumps 55 (only one shown) driven by the motor 54 from the outlet container 53 to the spray nozzles 50 located over the entire width of the glue roller 45.

The glue roller 45 with its outer surface 46 is extended into the exhaust hood 39, which is slightly inclined at an angle relative to the upper section of the channel 40 of the pneumatic conveyor 13.

The bonding device shown in FIG. 2a contains the same means (not shown) for introducing fibers into the loading chute 10 as the gluing device shown in FIG. 1a.

An example embodiment of the invention shown in FIG. 2b differs from the implementation example shown in FIG. 2a, only by the fact that the glued fibers are sucked up by a pneumatic conveyor 13.

In the embodiment shown in FIG. 2c, the glue roller 45 is positioned so that after falling onto the roller, the fiber stream 36 is deflected toward the pins 18 of the fiber roller 17. The slotted nozzle 26 for glue can be set at an adjustable angle relative to the direction of flow of the fibers 36. In this example implementation of the invention, the slotted nozzle 26 for glue aligns approximately in the direction of the deflected stream of fibers 36. In this embodiment, the renewed action of the roller 17 for fibers also contributes to particularly intensive bonding .

An example embodiment of the invention shown in FIG. 2d is similar to the implementation example shown in FIG. 1d, but instead of the glue board 28, it contains an glue roller 45 that rotates in the direction of arrow 47. The glue roller 45 also provides a static mixture of fibers that have previously been wetted with glue from the spray nozzles 41. In addition, the glue roller 45 serves to wet the fibers with glue using slotted nozzles 25 for glue. In this case, the glue roller 45, in turn, can also be located so that the fibers are recycled to the working area of the roller 17 for fibers.

An example embodiment of the invention shown in FIG. 2e differs from the gluing device shown in FIG. 2d, in that slotted nozzles for glue are not provided, but the fibers are only wetted by spray nozzles 41, followed by static mixing of the fibers with an adhesive roller 45.

An example embodiment of the invention shown in FIG. 3a is similar to the implementation example shown in FIG. 1a. However, differences can be found in the means provided for bonding the fibers. The bonding device shown in FIG. For, contains an adhesive roller 60, which works on the principle of rollers for applying liquids and which forms the outlet 23 of the section of the groove 22 and acts as a partial section 61 of the outer surface 62 in the section of the groove 22 over its entire width. The outer surface 62 of the glue roller 60 is formed with slots 63 in the form of spherical recesses, as shown in FIG. 3b. The recesses 63 have a size corresponding to the amount of adhesive required. In this case, the glue roller has an outer diameter of 500 mm and rotates at a speed of 60 revolutions per minute. The diameter of the recesses 63 is 10 mm and a depth of 1 mm. However, it is also possible to provide other profiles, for example radial or axial grooves, and the outer surface 62 can also be smooth and planar. It consists of a hard, abrasion resistant material, such as a hard chrome coating. The glue roller 60 works in conjunction with the glue roller 64, which is located near the glue roller 60 and forms an adhesive tank 65 with it. The glue may be supplied to the glue tank 65 through the glue supply pipe 66. A gap 67 is provided between the glue roller 60 and the glue roller 64.

The next partial section 68 of its outer surface 62, the adhesive roller protrudes into the adhesive container 69, which contains the first drain of glue 70 and the second drain of glue 71.

The glue roller 60 can rotate around its longitudinal axis, as shown by arrow 72, both in the direction of flow of the fibers 36 and in the opposite direction. When rotated in the opposite direction to the flow of fibers 36, the glue roller 60 receives glue from the glue tank 65, where the glue roller 64 rotates in the opposite direction to the glue roller 60. An adhesive film is formed on the glue roller 60. The thickness of the specified adhesive film may be determined by the gap 67 between the adhesive roller 60 and the roller 64, the size of which can be adjusted by the offset of the adhesive roller 64. If the adhesive roller contains a smooth outer surface 62, the adhesive film may have a thickness of, for example, 0.2 mm.

If glue is to be applied to the fibers from the glue container 69 and not from the glue tank 65, the tank 65 is released and the glue application roller 64 is set at a fairly large interval relative to the glue roller 60. In this case, the glue roller 60 rotates with the fiber flow 36, and the level of glue filling in the glue container 69 is held at 73 by a drain 71, where the glue roller 60 is immersed in the glue. The glue container 69 is also filled using the glue supply pipe 66. If the fibers are bonded using the glue tank 65, the glue fill level in the container 69 is kept low at 74 through the drain 70, where the glue roller is not immersed in the glue. The glue flowing from the drains 70 and 71 is returned to the glue processing plant (not shown) for reuse.

With such a bonding device, glue also enters the fibers through mechanical friction, since the flow of fibers 36 falls substantially tangentially onto the glue roller 60 at the contact point indicated by numeral 75.

The application of glue using this bonding device is regulated as follows: the current weight of absolutely dry fiber in kg / h minus the known moisture content of the fibers is determined gravimetrically using a weighing device 7. The volume of the glue solution, which contains a solid polymer with a proportion of, for example, 65%, is the volume of the recesses 63 per one revolution of the adhesive roller 60. The proportion of the solid polymer of the adhesive solution, the specific gravity of the solid polymer and the volume of the adhesive solution per revolution of the roller, being constant, yes the proportion of solid polymer per revolution of the roller, measured in kg per revolution. Therefore, by changing the speed of rotation of the roller 60, the addition of solid polymer to absolutely dry fibers in kg / h is regulated depending on the number of fibers passing through the weighing device 7.

In turn, the embodiment of the invention shown in FIG. 3c differs from the implementation example shown in FIG. 3a, only by the fact that the glued fibers are sucked up by a pneumatic conveyor 13.

In the exemplary embodiment shown in FIG. 3d, the glue roller 60 is positioned in the same way as the glue roller 45 of the embodiment shown in FIG. 2c, so that when the fiber stream 36 enters the glue roller 60, the fibers are deflected into the working area of the fiber roller 17. This, in turn, provides particularly effective bonding of the fibers.

In the gluing devices shown in FIG. 1-3, it is possible to achieve an increase in the cross-sectional area of the fiber flow to 94 m ² / s, for example, in the area where the adhesive means are located.

An example embodiment of the invention shown in FIG. 4a is also similar to the gluing device shown in FIG. 1a, and differs only in the means provided for gluing.

Two rows of spray nozzles 81 and 82 containing two substances are located opposite each other in the wall 80 of the exhaust hood 39, which is provided with corresponding holes, while the spray nozzles are provided for gluing fibers coming out of the section of the groove 22 and indicated by the numeral 83, while spray nozzles eject glue and air. The fibers 83 deviate from their direction when moving from the section of the groove 22 to the exhaust hood 39 and expand in space due to the changed weight. As a result, a large contact surface of the fibers 83 is provided for applying the adhesive. In the same manner as in the gluing device shown in FIG. 1a, the spray nozzles 81, 82 are in each case connected by a connecting pipe to a separate glue pump (not shown). Spray nozzles obtain an adhesive solution in the same manner as in the gluing device shown in FIG. 1a. The air required for the spray nozzles 81, 82 is provided from a common air supply.

In turn, the embodiment of the invention shown in FIG. 4b differs from the implementation example shown in FIG. 4a, only by the fact that the glued fibers are sucked up by a pneumatic conveyor 13.

The exemplary embodiments shown in FIG. 2, 3 and 4, and even all of the following implementation examples described below, may also include metal reflective plates (baffles) 42 in the section of the groove 22, as shown in FIG. 1f.

FIG. 5a shows a gluing device that is symmetrical about the longitudinal axis of a partial section of the pneumatic conveyor 13. Glue assemblies 86 and 87 are located on two sides of the longitudinal axis, respectively, which basically corresponds to one of the gluing devices according to FIG. 1a, 1c-1f, 2a, 2c-2e, 3a, 3d, or 4a. Thus, the adhesive means can be made in accordance with the differently described bonding devices, and therefore they are not shown in FIG. 5a. The same parts of the two glue assemblies 86 and 87 of the double gluing device are indicated by the same digital numbers. In addition to the particularly high throughput, the double-bonding device has the advantage that the fibers are mixed efficiently by streams of fibers 36 that collide with each other at high speed without the use of mixing equipment. At lower material speeds, the double-mixing device can also be used as an alternative to the other gluing devices according to the invention in order to achieve effective subsequent mixing.

As shown in FIG. 5b, when using the double mixing device, it can be provided that the glued fibers are sucked up by the pneumatic conveyor 13.

FIG. 6a shows a gluing device that operates on the principle of one of the gluing devices shown in FIG. 1a, 1c-1f, 2a, 2c-2e, 3a, 3d, or 4a, in which specific adhesive means are not shown. In addition to the bonding devices described above, shown in FIG. 6a, the bonding device comprises a node 90 for screening (filtering) the fibers.

In the gluing device shown in FIG. 6a, the outlet 23 of the chute 22 section exits into the exhaust hood 39 of the pneumatic conveyor 13. Opposite the outlet 23 is the inlet 91 of the chute 92 for coarse material. The drain chute 92 for coarse material is located in the vertical direction and has at its lower end an outlet 93 for coarse material. Above the outlet 93 for coarse material are openings 94 for supplying air. The cross section of the downcomer 92 for coarse material is provided with shutters 95 for regulating the air. Near the inlet 91 are guide flaps 96 and 97.

The sieving section of 90 fibers works as follows: the fibers of the fiber stream 36 exiting the outlet 23 enter the exhaust hood 39 of the pneumatic conveyor 13. The usual lightweight material 98, with medium weight fibers, forms the beginning of a parabola with a short path due to the relatively low kinetic energy of the fibers after leaving the section of the chute 22 and then carried away into the flow of conveying air, which is directed downward in the pneumatic conveyor 13 and is indicated by arrow 38.

The coarse material 99, which is heavier than the normal material 98, forms parabolas with a longer trajectory due to the greater kinetic energy, and therefore passes into the downcomer 92 for coarse material. Due to the slow air flow prevailing in the chute 92 for coarse material, fiber particles that have a boundary weight between light and heavy weight rise back from the chute 92 for coarse material into the air stream of the pneumatic conveyor 13. Conversely, the heavy parts of the coarse material fall into the outlet 93 for large material. The height and angle of the guide flap 96 can be adjusted, and it serves to control the speed and direction of the air flow directed downward in the exhaust hood 39. Thus, it is possible to influence the path of the flow of fibers 36 after leaving the section of the groove 22. The air velocity in the drain chute 92 for coarse material is initially determined by the level of negative pressure prevailing in the screening section of 90 fibers, which, in turn, can be regulated by an air throttle 35 in the section of the upper channel 40 pneumatically th conveyor 13, and, moreover, indicated air speed is determined by dampers 95 air regulation. The cross section of the hole 91 can be adjusted using the guide flap 97, the height of which can be changed.

In this bonding device, it turned out to be expedient to glue the fibers and sift them in the same device.

In this bonding device, the fibers can be sucked up by means of a pneumatic conveyor 13. Due to the relatively low kinetic energy after leaving the chute section 22, normal light material 98 is sucked out by the suction force of the fan 12, while coarse material 99 describes a trajectory parabola and passes into the drain chute 92 for large material.

FIG. 8a and 8c, respectively, show a gluing device that is combined essentially from the gluing device shown in FIG. 1a and the gluing device shown in FIG. 6a, and therefore comprises a first partial assembly 113 and a second partial assembly 114. A gluing device serves to glue the dried fibers in two steps. It comprises a dryer 115, in which a pipe 116 in which the fibers are dried is only partially shown. The pipe 116 exits into a cyclone trap 117, the outlet 1 of which is connected to a transverse fiber distribution device 2. The exhaust air and water vapor are removed from the cyclone trap 117 through the outlet 118.

The fan 12 of the pneumatic conveyor 13 is connected on the output side to the conveying pipe 119, which goes into the second cyclone trap 120, forming part of the second partial node 114. The outlet 1 of the cyclone trap 120 is connected, in turn, to the transverse fiber distribution device 2, which goes into the metering hopper 3 of the second partial node 114. The fan 12 of the second partial node 114 is connected on the output side with a conveying pipe 121, which leads to a forming machine (n shown). As arrow 38 of the second partial assembly 114 shows, return air is sent from the forming machine through the air line 122 to the pneumatic conveyor 13 of the second partial assembly 114. Through the next air duct 123, the return air is sent from the cyclone trap 120 to the pneumatic conveyor 13 of the first partial assembly 113. This is 70 % of the air removed from the cyclone collector 120, and the remaining 30% of the air in the cyclone collector 120 is removed as air leaving the outlet 124 of the cyclone collector 120. Chipped The fan 12 of the first partial assembly 113 produces 100% of the conveying air for the fibers, 30% of the compensating air is sucked through the air supply 11 of the first partial assembly 113 by the prevailing negative pressure. The same applies to the second partial assembly 114, in which 70% of the return air is sent from the forming machine to the pneumatic conveying pipe 13, and 30% of the compensating air is sucked through the air supply by means of negative pressure in the partial assembly 114.

The bonding device shown in FIG. 8a, it is designed in such a way that when using the required proportion of solid polymer, which is 10% based on absolutely dry fibers, 5% of the solid polymer is distributed into the first bonding step provided by the first partial assembly 113. From the first partial assembly 113, the fibers are transferred by a conveying conduit 119 to the cyclone collector 120 and then pass into the metering hopper 3 of the second partial assembly 114, which, like the gluing device shown in FIG. 6a is required in order to dose the fibers in order to proportionately add glue. Other features of the second partial assembly 114 coincide with those of the device shown in FIG. 6a. Thus, in the partial assembly 114, various means for bonding the fibers can be provided. The bonding step that the second partial assembly 114 provides provides the remaining 5% of the solid polymer.

The above advantages are associated with such a stepwise bonding procedure. Compared to the bonding procedure that takes place in one step using one of the bonding devices shown in FIG. 1-5, this two-step bonding procedure is associated only with relatively small additional costs, as sieving of glued fibers is always necessary.

In the gluing device shown in FIG. 8a, it can be provided that each bonded fiber is sucked upward at the partial nodes 113 and 114. This type of device is shown in FIG. 8b and 8d, respectively.

Claims (71)

1. The method of bonding dried fibers intended for the production of wood-fiber boards, characterized in that (a) the fibers (4) are fed to the roller (17) for fibers with a dispenser (3) through a loading chute (10), which is subjected to negative pressure, while the fiber roller has many pins (18) on its surface and rotates in this way , (b) that the fibers (14) deviate from their direction with pins (18), are guided along the section of the groove (22), which is formed by a partial section (20) of the periphery of the roller (17) for the fibers and the opposite wall (21) and the adhesive, and that these fibers are accelerated to approximately the peripheral speed of the roller (17) for the fibers with pins (18) and the air flow generated by these pins, (c) moreover, the fibers (36) are displaced from the roller (17) for the fibers due to centrifugal force and are pressed against the wall section (21), not yet coming into contact with the pins (18), (d) fibers (36) are bonded in the area of the wall section or near one end of the wall section, (e) and fibers (36) are discharged from the outlet (23) of the trough section (22). 2. The method according to claim 1, characterized in that the wall section or the first wall section (21a), to which the fibers are pressed (36), is performed starting after approximately one quarter of the periphery of the fiber roller, after the fibers (14) hit the roller ( 17) for fibers. 3. The method according to claim 1 or 2, characterized in that the fibers (36) are glued with slotted nozzles (26) for glue. 4. The method according to claim 3, characterized in that the fibers (36) fall on the adhesive board (28) in the area of the slotted nozzles (26) for glue. 5. The method according to claim 4, characterized in that the adhesive board (28) is installed at an adjustable angle relative to the direction of flow of fibers (36), to deflect the fibers (36) in a certain way and to regulate the pressure of the fibers (36) on the adhesive board (28) . 6. The method according to claim 3, characterized in that the fibers (36) are glued with spray nozzles (41). 7. The method according to claim 6, characterized in that the fibers (36) fall on the adhesive board (28) in the area of the slotted nozzles (26) for glue. 8. The method according to claim 7, characterized in that the adhesive board (28) is set at an adjustable angle relative to the direction of flow of the fibers (36), to deflect the fibers (36) in a certain way and to regulate the pressure of the fibers (36) on the adhesive board (28) . 9. The method according to claim 3, characterized in that in the area of the slotted nozzles (26) for glue fibers (36) are fed tangentially to the glue roller (45), which rotates in the direction of movement of the fibers (36). 10. The method according to claim 3, characterized in that the speed at which the fibers (14) are supplied to the fiber roller (17) can be determined by controlling the negative pressure prevailing in the loading chute (10). 11. The method according to claim 1 or 2, characterized in that the fibers (36) are glued by spray nozzles (41). 12. The method according to claim 11, characterized in that the speed at which the fibers (14) are supplied to the fiber roller (17) can be determined by controlling the negative pressure prevailing in the loading chute (10). 13. The method according to claim 11, characterized in that the fibers (36) fall on the adhesive board (28) in the area of the slotted nozzles (26) for glue. 14. The method according to item 13, wherein the adhesive board (28) is installed at an adjustable angle relative to the direction of flow of fibers (36), to deflect the fibers (36) in a certain way and to regulate the pressure of the fibers (36) on the adhesive board (28) . 15. The method according to any one of claims 1, 2, 4-9, 13 and 14, characterized in that the speed at which the fibers (14) are supplied to the fiber roller (17) can be determined by adjusting the negative pressure prevailing in loading chute (10). 16. The method of bonding dried fibers intended for the production of wood-fiber boards, characterized in that (a) fibers (4) are fed to the roller (17) for fibers with a dispenser (3) through a loading chute (10), which is subjected to negative pressure, while the fiber roller has a plurality of pins (18) on its surface and rotates in this way , (b) that the fibers (14) deviate from their direction with pins (18), are guided along the section of the groove (22), which is formed by a partial section (20) of the periphery of the roller (17) for the fibers and the opposite wall (21) and the adhesive, and that these fibers are accelerated to approximately the peripheral speed of the roller (17) for the fibers with pins (18) and the air flow generated by these pins, (c) wherein the fibers (36) are displaced from the fiber roll (17) due to the centrifugal force and are pressed against the wall section (21), not yet in contact with the pins (18), and in which the fibers (36) are at least one times along the wall (21) they are again brought into contact with the pins (18) using a metal reflective plate (42), which is inclined like a slope in the direction of the pins (18), and then these fibers are pressed to the next section of the wall (21) by centrifugal force , (d) fibers (36) are glued in the area of one of the wall sections, between wall sections or near one end of the last wall section in the direction of fiber flow (36), (e) and fibers (36) are discharged from the outlet (23) of the trough section (22). 17. The method according to p. 16, characterized in that the wall section or the first wall section (21a), to which the fibers are pressed (36), perform starting after about one quarter of the periphery of the fiber roller, after the fibers (14) hit the roller ( 17) for fibers. 18. The method according to p. 16 or 17, characterized in that the fibers (36) are glued with slotted nozzles (26) for glue. 19. The method according to p. 18, characterized in that the speed at which the fibers (14) are fed to the roller (17) for fibers can be determined by adjusting the negative pressure prevailing in the loading chute (10). 20. The method according to p. 18, characterized in that the fibers (36) are glued by spray nozzles (41). 21. The method according to p. 18, characterized in that the fibers (36) fall on the glued board (28) in the area of the slotted nozzles (26) for glue. 22. The method according to item 21, wherein the adhesive board (28) is installed at an adjustable angle relative to the direction of flow of fibers (36), to deflect the fibers (36) in a certain way and to regulate the pressure of the fibers (36) on the adhesive board (28) . 23. The method according to p. 18, characterized in that in the area of the slotted nozzles (26) for glue fibers (36) are fed tangentially to the glue roller (45), which rotates in the direction of movement of the fibers (36). 24. The method according to p. 16 or 17, characterized in that the fibers (36) are glued by spray nozzles (41). 25. The method according to p. 24, characterized in that the speed at which the fibers (14) are supplied to the fiber roller (17) can be determined by controlling the negative pressure prevailing in the loading chute (10). 26. The method according to paragraph 24, wherein the fibers (36) fall on the adhesive board (28) in the area of the slotted nozzles (26) for glue. 27. The method according to p. 26, characterized in that the adhesive board (28) is installed at an adjustable angle relative to the direction of flow of fibers (36), to deflect the fibers (36) in a certain way and to regulate the pressure of the fibers (36) on the adhesive board (28) . 28. The method according to any one of paragraphs.16, 17, 20-23, 26 and 27, characterized in that the speed at which the fibers (14) are fed to the roller (17) for the fibers can be determined by adjusting the negative pressure prevailing in loading chute (10). 29. A method for bonding dried fibers intended for the production of wood-fiber boards, characterized in that a) the fibers are fed to the roller (17) for fibers with a dispenser (3) through the loading chute (10), while the fiber roller has many pins (18) on its surface and rotates in such a way b) that the fibers (14) deviate from their direction with pins (18), are directed along the trench section (22), which is formed by a partial section (20) of the periphery of the roller (17) for the fibers, and the opposite wall (21), and these fibers are accelerated up to approximately the peripheral speed of the roller (17) for the fibers with pins (18) and the air flow generated by these pins, c) the fibers (36) are brought out in a substantially horizontal direction of movement from the outlet (23) of the trough section (22), d) the fibers (83) are sucked down and thus deflected, and d) the fibers (83) are glued in the deflection zone by means of at least one spray nozzle (81, 82), which ejects glue and air. 30. The method according to clause 29, wherein in step (b) the centrifugal force causes the fibers (36) to press against the wall (21), not yet making contact with the pins (18), and throughout the wall (21) of the fiber (36) are again brought into contact with the pins (18) using a metal reflective plate (42), which is inclined like a slope in the direction of the pins (18), and then the fibers are pressed against the wall (21) by centrifugal force. 31. The method according to clause 29 or 30, characterized in that the fibers (83) are deflected into the channel (39) of the pneumatic conveyor (13), and there are two rows of opposing spray nozzles (81, 82) located between which the fibers are deflected (83 ) 32. The method according to p. 31, characterized in that the speed at which the fibers (14) are supplied to the roller (17) for the fibers can be determined by adjusting the negative pressure prevailing in the loading chute (10). 33. The method according to clause 29 or 30, characterized in that the speed at which the fibers (14) are supplied to the roller (17) for the fibers can be determined by controlling the negative pressure prevailing in the loading chute (10). 34. The method of bonding dried fibers intended for the production of wood-fiber boards, characterized in that a) the fibers (4) are fed to the roller (17) for fibers with a dispenser (3) through the loading chute (10), while the fiber roller has many pins (18) on its surface and rotates in such a way b) that the fibers (14) deviate from their direction with pins (18), are directed along the trench section (22), which is formed by a partial section (20) of the periphery of the roller (17) for the fibers and the opposite wall (21), and these fibers are accelerated approximately to the peripheral speed of the roller (17) for the fibers with pins (18) and the air flow generated by these pins, c) the fibers (36) are brought out in a substantially horizontal direction of movement from the outlet (23) of the trough section (22), d) the fibers (83) are sucked up and thus deflected, and d) the fibers (83) are glued in the deflection zone by means of at least one spray nozzle (81, 82), which ejects glue and air. 35. The method according to clause 34, wherein in step (b) the centrifugal force causes the fibers (36) to press against the wall (21), not yet making contact with the pins (18), and throughout the wall (21) of the fiber (36) are again brought into contact with the pins (18) using a metal reflective plate (42), which is inclined like a slope in the direction of the pins (18), and then the fibers are pressed against the wall (21) by centrifugal force. 36. The method according to clause 34 or 35, characterized in that the fibers (83) are deflected into the channel (39) of the pneumatic conveyor (13) and there are two rows of opposing spray nozzles (81, 82) located between which the fibers (83) deviate . 37. The method according to clause 36, wherein the speed at which the fibers (14) are supplied to the fiber roller (17) can be determined by controlling the negative pressure prevailing in the loading chute (10). 38. The method according to clause 34 or 35, characterized in that the speed at which the fibers (14) are supplied to the roller (17) for the fibers can be determined by controlling the negative pressure prevailing in the loading chute (10). 39. A method for bonding dried fibers (4) intended for the production of wood-fiber boards, characterized in that they create two symmetrical, opposed stream (36) of fibers, in which the fibers are glued in the same manner as in any of the previous methods, and fiber streams (36) collide with each other after exiting the outlet (23) of the trough section (22). 40. A device for gluing dried fibers (4) intended for the production of wood-fiber boards, characterized in that under the outlet (6) of the dispenser (3) for fibers there is a loading chute (10), which can be subjected to negative pressure passing from the outlet (6) to the roller (17) for fibers having a plurality of pins (18) on its surface and rotatable so that the fibers (14) falling on the fiber roller (17) are deflected by pins (18 ) are sent along the yellow section both (22), which is formed by a partial section (20) of the periphery of the fiber roller (17) and an opposite wall (21) to which extends from the outlet (16) of the loading chute (10) in the direction of rotation (19) of the roller (17) for fibers and has an outlet (23) for fibers (36), and these fibers are accelerated to approximately the peripheral speed of the fiber roller (17) with pins (18) and the air flow generated by these pins, in which, due to the centrifugal force of the fiber (36) are displaced from the roller (17) for the fibers and pressed against the wall section, e without coming into contact with the pins (18), and the trough section (22) is also formed by means for gluing fibers (36), which are located in the area of the wall section or near one end of the wall section. 41. The device according to p, characterized in that the adhesive means contain slotted nozzles (26) for glue, which are located along the width of the wall of the section of the gutter (22). 42. The device according to paragraph 41, characterized in that it contains means for two symmetrical, oppositely arranged streams (36) of fibers intended for bonding, and the streams of fibers (36) collide with each other after leaving the outlet (23) of the section gutters (22). 43. The device according to p. 40 or 41, characterized in that the adhesive means contain spray nozzles (41), which are located along the width of the wall of the gutter section (22). 44. The device according to item 43, wherein the slotted nozzles (26) for glue are made with the possibility of alignment tangentially relative to the adhesive board located nearby (28). 45. The device according to item 44, wherein the adhesive board (28) is configured to be installed at an adjustable angle relative to the direction of flow of fibers (36), so as to be able to deflect the fibers (36) to a different degree, and thus provide a change in pressure fibers (36) on the adhesive board (28). 46. The device according to item 43 or 45, characterized in that it contains means for two symmetrical, oppositely located streams (36) of fibers intended for bonding, and the streams of fibers (36) collide with each other after exiting the outlet (23 ) gutter sections (22). 47. The device according to paragraph 41, wherein the slotted nozzles (26) for glue are made with the possibility of alignment along the tangent relative to the adhesive board located nearby (28). 48. The device according to clause 47, characterized in that it contains means for two symmetrical, oppositely arranged streams (36) of fibers intended for bonding, and the streams of fibers (36) collide with each other after leaving the outlet (23) of the section gutters (22). 49. The device according to clause 47, wherein the adhesive board (28) is configured to be installed at an adjustable angle relative to the direction of flow of fibers (36), so as to be able to deflect the fibers (36) to various degrees, and thus provide a change in pressure fibers (36) on the adhesive board (28). 50. The device according to 49, characterized in that it contains means for two symmetrical, oppositely arranged streams (36) of fibers intended for bonding, and the streams of fibers (36) collide with each other after leaving the outlet (23) of the section gutters (22). 51. The device according to paragraph 41, wherein the slotted nozzles (26) for glue are made with the possibility of alignment tangentially relative to the rotating glue roller (45) located near. 52. The device according to 51, characterized in that it contains means for two symmetrical, oppositely arranged streams (36) of fibers intended for bonding, and the streams of fibers (36) collide with each other after leaving the outlet (23) of the section gutters (22). 53. A device for gluing dried fibers (4) intended for the production of wood-fiber boards, characterized in that under the outlet (6) of the dispenser (3) for fibers there is a loading chute (10), which can be affected by negative pressure passing from the outlet (6) to the fiber roll (17), which has a plurality of pins (18) on the surface and can rotate in such a way that the fibers (14) falling on the fiber roll (17) are deflected by the pins (18) along the trench section (22), which on a partial section (20) of the periphery of the roller (17) and the opposite wall (21), and which extends from the outlet (16) of the loading chute (10) in the direction of rotation (19) of the roller (17) for the fibers and has an outlet (23 ) for fibers (36), and these fibers are accelerated to approximately the peripheral speed of the roller (17) for the fibers with pins (18) and the air flow generated by these pins, where due to centrifugal force, the fibers (36) are displaced from the roller (17) for fibers and pressed against the wall section, not yet coming into contact with the pins (18), which at least one metal reflective plate (42) is located in the trough section (22), which is inclined like a slope and which again brings the fibers (36) into contact with the pins (18), where the fibers (36) are then pressed against the next wall section ( 21) by centrifugal force, and that the trough section (22) is also formed by means for gluing fibers (36), which are located in the area of one of the wall sections (21a, 21b), between two wall sections (21a, 21b) or near one end of the last wall sections in the direction of fiber flow (36). 54. The device according to item 53, wherein the adhesive means contain slotted nozzles (26) for glue, which are located along the width of the wall of the gutter section (22). 55. The device according to item 54, wherein the slotted nozzles (26) for glue are made with the possibility of alignment tangentially relative to the adhesive board located near (28). 56. The device according to item 54, wherein the slotted nozzle (26) for the adhesive is made with the possibility of alignment tangentially relative to the rotating glue roller (45) located near. 57. The device according to p. 53 or 54, characterized in that the adhesive means contain spray nozzles (41), which are located along the width of the wall of the section of the gutter (22). 58. The device according to p. 57, characterized in that it contains means for two symmetrical, oppositely arranged streams (36) of fibers intended for bonding, and the streams of fibers (36) collide with each other after leaving the outlet (23) of the section gutters (22). 59. The device according to claim 57, characterized in that the slotted nozzles (26) for glue are made with the possibility of alignment tangentially relative to the adhesive board located nearby (28). 60. The device according to p. 59, characterized in that the adhesive board (28) is made with the ability to be installed at an adjustable angle relative to the direction of flow of fibers (36), so as to be able to deflect fibers (36) to various degrees, and thus provide a change in pressure fibers (36) on the adhesive board (28). 61. The device according to any one of paragraphs 53-56, 59 and 60, characterized in that it contains means for two symmetrical, oppositely arranged streams of fibers (36) intended for bonding, and the streams of fibers (36) collide with each other after exit from the outlet (23) of the trough section (22). 62. A device for gluing dried fibers (4) intended for the production of wood-fiber boards, characterized in that under the outlet (6) of the dispenser (3) for fibers there is a loading chute (10), which can be affected by negative pressure passing from the outlet (6) to the fiber roll (17), which has a plurality of pins (18) on its surface and is rotatable in such a way that the fibers (14) falling on the fiber roll (17) are deflected by the pins (18) ) are sent along the yellow section both (22), which is formed by a partial section of the periphery of the fiber roller (17) and the opposite wall (21), and which extends from the outlet (16) of the loading chute (10) in the direction of rotation (19) of the fiber roller (17) and provided with an outlet (23), and said fibers are accelerated to approximately the peripheral speed of the fiber roller (17) with pins (18) and an air stream generated by said pins that the fibers (36) are led out through the outlet (23) in a substantially horizontal direction traffic that is near the weekend the inlet (23) of the trough section (22) is the inlet of the pneumatic conveyor (13), into which the fibers (83) deflect in a downward direction, and that spray nozzles (81, 82) are located in the deflection zone, which are installed for gluing the fibers (83 ) ejected glue and air. 63. The device according to claim 62, characterized in that due to the centrifugal force in the section of the trough (22), the fibers (36) are pressed against the wall (21), not yet making contact with the pins (18) and located on the wall (21) along at least one metal reflective plate (42), which is inclined like a slope, so that the fibers (36) again come into contact with the pins (38) and then are pressed against the wall (21) by centrifugal force. 64. The device according to item 62 or 63, characterized in that in the inlet of the pneumatic conveyor (13) there are two rows of oppositely arranged nozzles (81, 82). 65. The device according to p. 64, characterized in that it contains means for two symmetrical, oppositely arranged streams (36) of fibers intended for bonding, and the streams of fibers (36) collide with each other after leaving the outlet (23) of the section gutters (22). 66. The device according to p. 62 or 63, characterized in that it contains means for two symmetrical, oppositely arranged streams (36) of fibers intended for bonding, and the streams of fibers (36) collide with each other after leaving the outlet (23 ) gutter sections (22). 67. Device for gluing dried fibers (4) intended for the production of wood-fiber boards, characterized in that under the outlet (6) of the dispenser (3) for fibers there is a loading chute (10), which can be affected by negative pressure passing from the outlet (6) to the fiber roll (17), which has a plurality of pins (18) on its surface and is rotatable in such a way that the fibers (14) falling on the fiber roll (17) are deflected by the pins (18) ) are sent along the yellow section both (22), which is formed by a partial section of the periphery of the fiber roller (17) and the opposite wall (21), and which extends from the outlet (16) of the loading chute (10) in the direction of rotation (19) of the fiber roller (17) and has an outlet (23), and these fibers are accelerated to approximately the peripheral speed of the roller (17) for the fibers with pins (18) and the air flow generated by these pins that the fibers (36) are ejected through the outlet (23) in a substantially horizontal direction traffic that is near the weekend from The hole (23) of the trough section (22) is the inlet of the pneumatic conveyor (13), into which the fibers (83) are deflected upwards, and that spray nozzles (81, 82) are located in the deflection zone, which are provided for gluing the fibers (83) ejected glue and air. 68. The device according to p. 67, characterized in that due to the centrifugal force in the gutter section (22), the fibers (36) are pressed against the wall (21), not yet making contact with the pins (18) and located on the wall (21) along at least one metal reflective plate (42), which is inclined like a slope, so that the fibers (36) again come into contact with the pins (38) and then are pressed against the wall (21) by centrifugal force. 69. The device according to p. 67 or 68, characterized in that in the inlet of the pneumatic conveyor (13) there are two rows of opposing spray nozzles (81, 82). 70. The device according to p. 69, characterized in that it contains means for two symmetrical, oppositely located streams (36) of fibers intended for bonding, and the streams of fibers (36) collide with each other after leaving the outlet (23) of the section gutters (22). 71. The device according to p. 67 or 68, characterized in that it contains means for two symmetrical, oppositely located streams (36) of fibers intended for bonding, and the streams of fibers (36) collide with each other after leaving the outlet (23 ) gutter sections (22).

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