KR101983735B1 - Screw press - Google Patents

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Publication number
KR101983735B1
KR101983735B1 KR1020177029791A KR20177029791A KR101983735B1 KR 101983735 B1 KR101983735 B1 KR 101983735B1 KR 1020177029791 A KR1020177029791 A KR 1020177029791A KR 20177029791 A KR20177029791 A KR 20177029791A KR 101983735 B1 KR101983735 B1 KR 101983735B1
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South Korea
Prior art keywords
screw
rotary drum
presser
screw shaft
face
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KR1020177029791A
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Korean (ko)
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KR20180135789A (en
Inventor
가즈키 오모리
히사시 오케야
료 고마지
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미쯔비시 가꼬끼 가이샤 리미티드
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/14—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with only one screw or worm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/18—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing with means for adjusting the outlet for the solid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The present invention provides a screw press equipped with a drive mechanism capable of smoothly and stably driving a presser over a long period of time.
The screw press of the present invention has a rotary drum 11 having a filtration surface 11A and both end faces 11B and 11D thereof and a screw shaft 12A projecting from both end faces 11B and 11D of the rotary drum 11, And a screw blade 12B formed on the circumferential surface of the screw shaft 12A and having a screw blade 12B slidingly contacted with the inner circumferential surface of the filtration surface 11A and a screw 12B screwed into the rotary drum 11 along the screw shaft 12A And a presser 18 which reciprocates to open and close a gap formed between the filtration surface 11A and the screw shaft 12A. The presser 18 provided on the right end surface 11D and in the rotary drum 11, And a drive mechanism 19 having an air cylinder 19A connected to a rotary joint 19C for supplying a pressurized fluid for reciprocating the air cylinder 19A. The air cylinder 19A is provided integrally with the right end surface 11D .

Figure R1020177029791

Description

SCREW PRESS

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw press for compressing a material to be treated such as sludge to perform solid-liquid separation, and more particularly, to a solid- And to a driving mechanism of a presser that gives a back pressure at its outlet.

A conventional screw press of this kind is known, for example, as shown in Fig. Fig. 3 schematically shows a screw press described in Patent Document 1. Fig. The conventional screw press M has a rotary drum 1 having a cylindrical filtration surface 1A as shown in Fig. 3 and a rotary drum 1 having an axial center of the rotary drum 1 And a screw 2 having a screw shaft 2A passing through the center of the screw shaft 2A and a screw blade 2B formed in a spiral shape on the outer peripheral surface of the screw shaft 2A, For example, sludge) is squeezed to separate solid and liquid from the separated liquid.

The rotary drum 1 has a left end face 1B which closes one end (left end in the figure) of the filtration face 1A and a left end face 1B which closes the filtration face 1A A diameter portion 1C provided continuously with a diameter larger than that of the surface 1A and a right end surface 1D closing the right end of the diameter portion 1C have. The screw shaft 2A has a left end portion passing through the center of the left end face 1B of the rotary drum 1 and a right end portion passing through the center of the right end face 1D. 3, the screw shaft 2A has a hollow portion 2C formed at the left end portion thereof and an opening portion (opening portion) 2C opened from the hollow portion 2C in the rotary drum 1 The sludge is supplied from the left end of the screw shaft 2A into the hollow portion 2C as indicated by an arrow A and is rotated from the opening portion 2D of the screw shaft 2A in the rotary drum 1 And is introduced into the drum 1.

The screw shaft 2A has a tapered portion gradually tapered from the vicinity of the left end surface 1B of the rotary drum 1 to the right end of the filtration surface 1A, And has a straight portion formed to have the same diameter as the maximum diameter of the shape portion. The screw blade 2B formed on the tapered portion gradually narrows the spacing of the spiral from the left to the right of the rotary drum 1 so that the pressing force becomes stronger on the side of the discharge portion 1C.

The first and second bearings 3A and 3B are respectively installed on both left and right ends of the screw shaft 2A and the screw shaft 2A is rotated by the first and second bearings 3A and 3B Axis). A third bearing 4A is provided between the center hole of the left end surface 1B of the rotary drum 1 and the screw shaft 2A. A cylindrical body 1E covering the screw shaft 2A is connected to the center of the right end surface 1D of the rotary drum 1. A cylindrical body 1E is interposed between the cylindrical body 1E and the screw shaft 2A 4 bearings 4B are provided. The second bearing 3B axially supports the screw shaft 2A through a thin portion formed by extending from the cylinder 1E of the rotary drum 1. [

A first sprocket 5A is attached to the left end of the screw shaft 2A and a second sprocket 5B is provided at the end of the right end of the thin portion of the cylinder 1E in the rotary drum 1. [ And the screw 2 and the rotary drum 1 rotate through the sprockets 5A and 5B, respectively. The rotary drum 1 performs differential rotation with the screw 2 at a different rotational speed.

A straight portion 1F having the same diameter as the filtration surface 1A is provided between the right end of the filtration surface 1A and the left end of the enlarged diameter portion 1C of the rotary drum 1, The ring-shaped gap of the right end and the straight portion of the screw shaft 2A serves as a discharge port of the solid portion after the sintering process. Further, since the solid portion from the discharge port is discharged to the outside via the enlarged diameter portion 1C, the enlarged diameter portion 1C will be described as the discharge portion 1C in the following description.

A presser 6A having a ring shape is provided in the discharge portion 1C of the rotary drum 1. The presser 6A blocks the discharge port and gives a back pressure to the solid portion. The presser 6A is formed into a ring shape having a tapered surface for closing the discharge port, and the straight portion of the screw shaft 2A passes through the center hole. On the outside of the discharge portion 1C, a presser pressing plate 6B having a ring shape is provided parallel to the presser 6A at a predetermined interval. The cylinder 1E of the rotary drum 1 passes through the center hole of the presser presser plate 6B and the presser presser plate 6B slides in the lateral direction along the cylinder 1E. The presser presser plate 6B is connected to the presser 6A through a plurality of rods 6C. The presser pressing plate 6B reciprocates the cylinder 1E in the left-right direction through the drive mechanism 6D. The driving mechanism 6D includes an air cylinder 6D 1 functioning as pressurized air and a sliding member 6D 2 sandwiching the outer peripheral edge portion of the presser pressing plate 6B, and, a sliding element (6D 2) for supporting the support (支持體) a, has (6D 3) an air cylinder (6D 1) the press, the pressure plate (6B) by expansion and contraction of the cylinder rod (6D 4) by the pressurized air, which .

When the discharge port is closed by the presser 6A, the presser pressing plate 6B is moved through the drive mechanism 6D to the position indicated by the two-dot chain line from the solid line position to the left direction, And the discharge port is closed to give a back pressure to the solid component conveyed by the screw 2 in the rotary drum 1. [ This back pressure can be adjusted by the air cylinder 6D 1 of the driving mechanism 6D. Also the rotating drum (1) is rotated as well and will be a sliding between the presser (6A) to reciprocate along the cylinder (1E), the circumferential edge portion of the sliding member (6D 2) a platen press, (6B). When the pressure from the solid component conveyed by the screw 2 overcomes the back pressure from the presser 6A, the presser 6A moves rightward from the position indicated by the chain double-dashed line, The solid portion is discharged from the portion 1C to the outside as indicated by the arrow B in FIG.

In addition, in Figure 3, 6E is a housing (housing), 8 is a rotary drum (1) for accommodating a sliding member (6D 2) the guide unit (guide機構) to smoothly straight a, 7 a rotating drum (1) including 9 is a drainage section formed at a central portion of the water collecting section 8. As shown in Fig.

Then, the rotating drum 1 and the screw 2 of the screw press M are rotated to separate the solid from the sludge, and the solid content is conveyed to the discharge port while pressing the solid portion gradually and strongly. As a result of the solid content reaching the presser 6A, The presser 6A opens the discharge port to discharge the solid portion to the discharge portion 1C and discharges the solid portion from the discharge portion 1C to the outside as indicated by the arrow B do. In the meantime, in the rotary drum 1, separated water (separation water) is generated from the sludge subjected to the squeezing process and is discharged from the drainage section 9 to the outside by being collected in the collection section 8 from the filtration surface 1A . A cleaning device (not shown) is provided over the entire length of the filtration surface 1A in the gap between the filtration surface 1A of the rotary drum 1 and the housing 7, The filter surface 1A is cleaned while the drum 1 is rotating.

: Japanese Patent No. 4373832

However, if the conventional screw press M is operated and the presser 6A which rotates together with the rotary drum 1 continuously repeats the opening and closing of the discharge port of the solid content, a sliding member constituting the drive mechanism (6D) of (6D 2) the presser is worn by the sliding of the pressure plate (6B), the sliding member (6D 2) and the presser backlash bumpy between the pressure plate (6B) ( rattle) to occur, because the drive force of the drive mechanism (6D) is not smoothly transmitted to the presser (6A), as soon presser (6A) it is not smoothly driven as well as the consumption component such as a sliding element (6D 2) There is a problem that the consumable parts such as the sliding member 6D 2 must be replaced by stopping the screw press M and further the operating rate of the screw press M is lowered.

An object of the present invention is to provide a screw press equipped with a drive mechanism capable of smoothly and stably driving a presser for a long period of time.

A screw press described in claim 1 of the present invention is a screw press comprising a rotary drum having a cylindrical filtration surface and first and second end surfaces formed at both ends thereof and a rotary drum provided in the rotary drum and projecting from both end faces of the rotary drum A screw having a screw shaft and a screw blade formed in a spiral shape on the circumferential surface of the screw shaft to make a sliding contact with the inner circumferential surface of the filtration surface, and a screw reciprocating in the rotary drum reciprocating along the screw shaft, A screw press provided on the second end face to press the object to be processed supplied into the rotary drum through the rotary drum and the screw when the rotary is rotated, The reciprocating motion of the presser in the rotary drum And a drive mechanism having a cylinder mechanism for moving the cylinder mechanism, wherein the cylinder mechanism is integrated with the second end face.

According to a second aspect of the present invention, there is provided a screw press according to the first aspect of the present invention, wherein the drive mechanism has a rotary joint provided on the screw shaft for supplying a pressurized fluid to the cylinder mechanism .

According to a third aspect of the present invention, there is provided a screw press according to the second aspect of the present invention, wherein the rotary joint includes a tubular fixed portion surrounding the end portion of the screw shaft and not rotating, And a cylindrical rotating part connected to the cylindrical body protruding from the second end face.

According to a fourth aspect of the present invention, there is provided a screw press according to the third aspect of the present invention, wherein at least one passage through which the fluid passes is formed in the fixing portion in the axial direction, At least one annular groove communicating with the at least one passage is formed and at least one first port communicating with the at least one annular groove is formed in the rotating portion, And at least one second port communicating with the at least one passage is formed at an end of the fixing portion.

The screw press according to claim 5 of the present invention is the screw press according to any one of claims 1 to 4, wherein a guide rod for reciprocating the presser along the screw shaft Is installed.

According to the present invention, it is possible to provide a screw press equipped with a drive mechanism capable of smoothly and stably driving the presser for a long period of time.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing one embodiment of a screw press of the present invention over its entire length. Fig.
Fig. 2 is a cross-sectional view showing a substantial part of the screw press shown in Fig. 1. Fig.
3 is a schematic view showing a conventional screw press.

Hereinafter, the present invention will be described based on the embodiments shown in Figs. 1 and 2. Fig.

The screw press 10 according to the present embodiment has a first end face (first end face) formed on the left end (left end) of a cylindrical filtration face (filtration face) 11A as shown in Fig. 1, (Right end) of a diameter-increased portion 11C having a large diameter portion 11B (hereinafter referred to as a left end face) 11B and extending from the right end of the filtration surface 11A A rotating drum 11 having a first end face 11B and a second end face 11D (hereinafter referred to as a right end face) 11D and a rotating drum 11 having an axial center in the rotating drum 11 A screw shaft 12A projecting outwardly from both end faces 11B and 11D of the rotary drum 11 and formed in a spiral shape on the peripheral surface of the screw shaft 12A, And a screw 12 having a screw blade 12B slidingly contacted with an inner circumferential surface of a surface 11A of the rotary drum 11. The rotary drum 11 and the screw 12 (Solids and liquids) are separated from the solids (solid content) and the separation liquid by solid-liquid separation (solid-liquid separation), and the separated liquid is discharged from the filtration surface 11A, And is conveyed to a discharge port (to be described later) while being compressed by the screw blade 12B.

As shown in Fig. 1, first and second bearings 13A and 13B are provided at both ends of the screw shaft 12A, respectively. The screw shaft 12A is rotated by these first and second bearings 13A and 13B, That is, the screw 12 is rotated. The first and second bearings 13A and 13B are all fixed to the supporting bodies S1 and S2. The second bearing 13B is connected to an adjacent rotary joint as described later. Third and fourth bearings 14A and 14B sandwiching the screw shaft 12A are provided in the center holes of both end faces 11B and 11D of the rotary drum 11, 4 so that the rotary drum 11 can rotate on the screw shaft 12A by the bearings 14A, 14B.

1, a cylindrical body 11E surrounding a fourth bearing 14B is attached to the outer surface of the right end surface 11D of the rotary drum 11, and a sprocket 11D is provided on the right end of the cylindrical body 11E. a sprocket 15A is provided. The first drive device 16A is connected to the sprocket 15A through an endless chain 17A so that the first drive device 16A can drive the chain 17A and the sprocket 15A Thereby rotating the rotary drum 11. A sprocket 15B is provided at the right end of the screw shaft 12A and a second drive device 16B is connected to the sprocket 15B so that the second drive device 16B is connected to the chain 17B, 15B to rotate the screw 12 at a rotational speed faster than that of the rotary drum 11. [

1, the screw shaft 12A has a tapered shape in which the diameter gradually decreases from the vicinity of the left end surface 11B to the vicinity of the enlarged diameter portion 11C in the filtration surface 11A of the rotary drum 11, It has a portion (taper形狀部) (12A 1 ) , and a direct portion (12A 2) extends into the enlarged diameter (11C) with the same diameter as that formed from the right end of the tapered section (12A 1). Accordingly, all of the first, second, third and fourth bearings 13A, 13B, 14A and 14B are provided at both ends of the screw shaft 12 so that the rotary drum 11 is rotated by the screw shaft 12 To be able to do. In addition, a narrow gap between the outer periphery of the screw blade 12B and the inner periphery of the filtration surface 11A is maintained substantially constant over time. The screw vane 12B is formed in a spiral shape in the tapered portion 12A 1 so that the gap between the screw vanes 12B becomes narrower toward the discharge portion 11C.

The left end of the screw shaft 12A passing through the left end face 11B of the rotary drum 11 is formed as a hollow shaft. In the hollow shaft, an opening portion (opening portion) 12C located in the vicinity of the inner side of the left end surface 11B of the rotary drum 11 is formed. The sludge is supplied from the left end opening of the hollow shaft and flows into the rotary drum 11 from the opening 12C.

A ring-shaped gap exists between the right end of the filtration surface 11A of the rotary drum 11 and the straight portion 12A 2 of the screw shaft 12A, and solid matter is discharged from this gap. The ring-shaped gap will be described below as a discharge port. Further, the solid component discharged from the outlet is discharged to the outside as will be described later via the enlarged diameter portion 11C. In the following description, the enlarged diameter portion 11C will be described as the discharge portion 11C.

A pressor 18 for opening and closing a solid outlet is provided in the discharge portion 11C and is configured to give a back pressure to the solid portion at the discharge port by the presser 18. [ When the solid extruding pressure at the discharge port overcomes the predetermined back pressure from the presser 18, the presser 18 is moved from the position of the two dot chain line in the discharge portion 11C to the solid line position of the right end face 11D side And the outlet is gradually opened to discharge the solid content to the discharge portion 11C.

As shown in Figs. 1 and 2, the presser 18 used in the present embodiment has a tapered surface for closing the discharge port by penetrating into the ring-shaped discharge port, ) and the is configured to move to the left and right direction along the direct section (12A 2) with a through, direct section (12A 2). The presser 18 is configured such that a predetermined back pressure is applied to the solid portion at the discharge port by the drive mechanism 19 provided outside the rotary drum 11 and the discharge port is opened and closed.

1 and 2, the drive mechanism 19 includes, for example, two cylinder mechanisms (cylinder mechanisms) provided at positions apart from each other by 180 degrees from the right end face 11D of the rotary drum 11 A rotary joint 19C connected to the air cylinder 19A through pipes 19B and 19B and a rotary joint 19C and a pipe 19B via an air cylinder 19A, And a connected air source 19D. A presser 18 is connected to the tip end of the cylinder rod 19A 1 in the two air cylinders 19A. 1 and 2, the presser 18 is disposed in the discharge section 11C of the rotary drum 11 in the circumferential direction between the right end surface 11D and the opposite surface thereof at equal intervals The guide rods 19E are connected to a plurality of guide rods 19E arranged so as to guide the guide rods 19E smoothly in the left and right directions. Only one air cylinder 19A is shown in Figs. 1 and 2. In addition, in the present embodiment, a double acting type air cylinder (return type aircylinder) is used as the air cylinder 19A. In the present invention, a single acting air cylinder (a single cylinder type) can also be used.

Therefore, when the pressurized air is supplied from the air source 19D to the air cylinder 19A through the rotary joint 19C, the cylinder 19A 1 is stretched to move the presser 18 to the solid And moves toward the discharge port to close the discharge port. At this time, the pressure of the pressurized air can be adjusted in accordance with the characteristics of the sludge and the like, and the back pressure applied to the solid content can be appropriately set. If the pressure of the pressurized air is set high, the back pressure from the presser 18 to the solid component becomes large, and the water content of the solid component decreases. Conversely, if the pressure of the pressurized air is set low, So that the water content of the solid content becomes high.

The rotary joint 19C used in the present embodiment is sandwiched between the second bearing 13B and the fourth bearing 14B as shown in Fig. The rotary joint 19C includes a tubular fixed portion 19C 1 connected to and fixed to the second bearing 13B as shown in the figure and a cylindrical fixed portion 19C 1 having an inner surface in sliding contact with the fixed portion 19C 1 in addition, provided with a bearing (19C 3) sandwiched between the both ends of the tubular rotary part (19C 2) connected to the cylinder (11E) of the rotary drum 11, a fixing section (19C 1) and rotating part (19C 2), rotating portion (19C 2) and is constituted with the rotation drum 11 to rotate while sliding in contact with the government (19C 1). A narrow clearance is provided between the cylindrical fixing portion 19C 1 and the screw shaft 12A so that the screw shaft 12A smoothly rotates through a narrow gap between the fixing portion 19C 1 and the fixing portion 19C 1 .

Additionally, it and at the same time, and the two outer peripheral surface through two passages with each state (19C 1) There is a pressurized air passage in the axial direction is formed of two cylindrical fixing portion (19C 1) in as shown in Figure 2 An annular groove is formed. That is, the passage and the annular groove communicate with each other through the communication passage. The rotary part 19C 2 is formed with two first ports communicating with the two annular grooves in the radial direction and a fixing part 19C 1 protruded from the rotary part 19C 2 is provided with a fixing part 19C 1 , And two second ports communicating with the two passages of the first passage 19C 1 are formed in the radial direction. Each of the two second ports at the right end of the fixed portion 19C 1 is provided with a one touch coupling 19C 4 (see Fig. 2B) connected to the piping 19B of the air source 19D shown in Fig. 1 a reference) is attached, the two ports of the rotating portion (19C 2), there are two one-touch coupling (19C 5) are respectively connected to the two pipes (19B) with an air cylinder (19A) is attached. In both ends of an air cylinder (19A), rotation (19C 2) 2 of the pipe (19B), a (FIG. 1) for connecting the one-touch coupling (19A 2) is attached, the air source (19D) (Fig. 1 of ) Is supplied to the port for opening and closing the air cylinder 19A through the second port, the passage and the first port of the rotary joint 19C. The air cylinder 19A moves the presser 18 to close the discharge port and gives a back pressure to the solid portion at the discharge port.

1, the rotary drum 11 is housed in the housing 20 and is provided above the rotary drum 11 in the housing 20 over the entire length of the filtering surface 11A, A device 21 is provided for intermittently spraying the washing water from the washing device 21 to clean the filtering surface 11A. A water collecting section 22 having an inclined surface is formed below the rotary drum 11 and a drain pipe 23 is provided at a lower end of the water collecting section 22. [ Therefore, the separated water and the washing water from the rotary drum 11 are collected in the collecting part 22 and discharged to the outside from the drain pipe 23.

Next, the operation of the screw press 10 of the present embodiment will be described. When the screw press 10 is started to squeeze the sludge, the first and second driving devices 16A and 16B perform differential rotation of the rotary drum 11 and the screw 12, The ejection opening 18 closes the ejection opening close to the ejection port through the air cylinder 19A of the drive mechanism 19. The sludge is supplied from the hollow shaft of the screw shaft 12A and flows into the rotary drum 11 from the opening 12C of the hollow shaft as shown by the arrow A in Fig. The sludge is gradually pressed into the rotary drum 11 by the action of the screw blade 12B which is gradually narrowed while being conveyed toward the discharge port through the screw blade 12B of the screw 12 to be solid-liquid and separated into the separated water . The separated water after the solid-liquid separation is discharged from the filtration surface 11A to the collection portion 22, and the solid portion is conveyed to the discharge port by the screw blade 12B.

When the solid content reaches the outlet and comes into contact with the presser 18 rotating together with the rotary drum 11, the presser 18 receives a pressing force from the solid content. At this time, since the presser 18 receives back pressure from the air cylinder 19A of the drive mechanism 19, the pressing force of the solid part is advanced by the increase of the pressing force from the screw blade 12B at the discharge port, Is discharged from the filtration surface (11A) to the collection section (22). As the pressing force from the screw blade 12B gradually increases as the solid content approaches the discharge port to overcome the back pressure from the presser 18, the presser 18 receives the pressing force from the screw blade 12B and opens the discharge port . As a result, the solid content is discharged from the discharge port into the discharge portion 11C and discharged from the discharge portion 11C to the outside as indicated by the arrow B in FIG. At this time, the back pressure applied to the solid content from the presser 18 can be appropriately set in accordance with the type of the object to be treated.

The air cylinder 19A constituting the driving mechanism 19 of the presser 18 is attached to the right end surface 11D of the rotary drum 11 and the rotary part 19C of the rotary joint 19C 19C 2) is here connected directly to the cylinder (11E) of the rotary drum 11, the rotating portion (19C 2) and a pipe presser (air cylinder (19A) and a rotary joint (19C) for operating the 18) (19B) The frictional force is generated between the constituent parts and there is no problem such as abrasion. As a result, since the frictional force is generated between the rotary drum 11 and the rotary drum 11, It can be always smoothly driven.

As described above, according to the present embodiment, the air cylinder 19A constituting the drive mechanism 19 of the presser 18 is attached to the right end surface 11D of the rotary drum 11, Since the main portion of the drive mechanism 19 rotates together with the rotary drum 11 since the pressurized air is supplied to the air cylinder 19A via the rotary cylinder 19C, there is no consumable part as in the conventional case, It is possible to always smoothly drive the presser 18 over a long period of time, thereby increasing the operating rate of the screw press 10 and saving maintenance cost.

The present invention can be used as a solid-liquid separator for solid-liquid separation by squeezing a material to be treated such as sludge or slurry.

10: Screw press
11: rotary drum
11A: Filtration side
11B: Left end face (first end face)
11C: Discharge part (diameter part)
11D: right section (second section)
11E:
12: Screw
12A: Screw shaft
12B: Screw wing
16A: first driving device
16B: second driving device
18: Presser
19: Driving mechanism
19A: Air cylinder (cylinder mechanism)
19C: Rotary joint
19C 1 :
19C 2 :

Claims (5)

A rotary drum having a cylindrical filtration surface and first and second end surfaces (first and second end surfaces) formed at both ends of the filtration surface; A screw having a screw shaft protruded from the screw shaft and a screw blade formed in a spiral shape on the circumferential surface of the screw shaft and sliding contact with the inner circumferential surface of the filtration surface; And a presser which reciprocates and opens and closes a gap formed between the filtration surface and the screw shaft and rotates together with the rotary drum, wherein when the rotary drum and the screw are rotated, A screw press for compressing a material to be supplied into a drum,
And a driving mechanism provided on the second end face and having a cylinder mechanism reciprocating the presser in the rotary drum, wherein the cylinder mechanism is integrated with the second end face,
The driving mechanism includes a tubular fixed portion surrounding the end portion of the screw shaft and a nonrotating cylindrical portion fixed to the outer peripheral surface of the fixed portion and protruding from the second end face, And a rotary joint having a tubular rotating portion connected to the cylindrical portion ,
Wherein at least one passage through which the fluid passes is formed in the fixing portion and at least one annular groove communicating with the at least one passage is formed on the outer peripheral surface of the fixing portion, Wherein at least one first port communicating with one annular groove is formed and an end portion of the fixing portion protruding from the rotating portion in the axial direction is provided with at least one second port communicating with the at least one passage, And a plurality of screw holes are formed .
delete delete delete The method according to claim 1 ,
Wherein a guide rod for reciprocating the presser along the screw shaft is provided in the rotary drum.
KR1020177029791A 2017-04-05 2017-04-05 Screw press KR101983735B1 (en)

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KR101983735B1 true KR101983735B1 (en) 2019-05-29

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CN110341229B (en) * 2018-04-02 2021-09-07 中机华丰（北京）科技有限公司 Soft extrusion spiral solid-liquid separation device
CN108749075A (en) * 2018-06-11 2018-11-06 晏子俊 A kind of plunger type solid-liquid separating machine
CN116001346B (en) * 2023-03-24 2023-05-30 太原理工大学 Wet separation equipment for solid waste and separation method thereof

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