KR200247362Y1 - Cyclone dust collector - Google Patents

Abstract

The present invention relates to a cyclone dust collector, and more specifically, it can be used in a wide range of temperature regardless of the limitation of the operating temperature due to hot gas, and by simply increasing the dust collection rate using only physical force, all industries The aim is to increase the applicability in the field.

The present invention comprises a dust collecting tank 13 and a cylindrical main body 10 vertically integrated therein, a gas inlet 11 formed in a tangential direction on the upper outer wall of the main body, and a conventional ply composed of an outlet 12 on the other side. In the clone dust collector, the support plate body 5 is fixedly installed on the inner bottom of the main body 10, and the bearing housings 3 and 3 'are formed on the upper surface of the support plate body and the bottom of the main body, while the rotating shaft is centered. (4) And, the upper and lower ends are integrally supported, the upper and lower ends are in communication with the inside through the through hole (7) and the long and flat multiple plates parallel to the axis from the predetermined portion to the inner circumference are twisted counterclockwise at regular intervals. A cylindrical rotor (2) consisting of an arrayed inner circumferential side wing (6) and an outer circumferential side wing (6 ') arranged in the opposite direction on the outer circumference in contact therewith, which is arranged in a bearing housing by a rotating shaft to form an upper portion of the main body. A sphere configured to be driven by a motor (M) mounted on the Have.

Description

Cyclone dust collector

The present invention relates to a cyclone dust collector, and more specifically, it can be used in a wide range of temperature regardless of the limitation of the operating temperature due to hot gas, and by simply increasing the dust collection rate using only physical force, all industries The aim is to increase the applicability in the field.

Cyclone dust collector is a device that collects and removes fine particles of solids and liquids suspended in the gas.The principle is that if the gas containing dust is accelerated by centrifugal force to much higher than gravity, It is a dust collector using the principle that the separation speed becomes larger compared to sedimentation by weight. As shown in FIG. 5, the structure of the conventional cyclone dust collector is configured to communicate with the storage tank 130 at the bottom and a cylindrical body 100 vertically integrated with the storage tank 130 at the bottom thereof and from the upper outer wall of the body to the inside. It has a structure provided with a gas inlet 110 is formed in a tangential direction horizontally, and the other side is located above the gas inlet, the outlet 120 for discharging the gas.

At first, it was used to remove the dust contained in the flue gas of the boiler, but now it is widely used in the chimneys of many industrial sites such as chemical plants, waste incineration plants.

Current methods of collecting dust in exhaust gases include mechanical mechanisms by gravity, filtration by filters, inertia, centrifugal forces, or scrubbing (scrubbers), and electrostatics by applying an electric field to dust suspended in a gas, which results in electrostatic particles. It can be classified as an electric type to collect by enemy force. In the mechanical type, there are wet and dry dust collection methods. In the wet dust collection method, the dust collection efficiency using the bag filter, which is a dry dust collecting method, and the cyclone dust collecting device using the centrifugal force are mainly due to the good dust collection efficiency. It is used. In rare cases, the electric Cottrell dust collector, which has the best dust collection efficiency, is used, but it is not affected by particle size, property, temperature, and pressure, and has an advantage that the dust collection rate is about 98%, but limited to the operating temperature of exhaust gas. And first of all, the equipment cost is expensive, the practicality is low. In addition, the dust collecting device by the bag filter has a good dust collecting efficiency, but since the bag filter is sensitive to the temperature, there is a problem that there is a restriction on the operating temperature at which the exhaust gas must be cooled first, and the existing to be applied in the present invention. Cyclone dust collector has a large pressure loss of 50-150mmAq.

The present invention can be used in a wide range of temperature regardless of the limitation of the operating temperature due to the generation of wastewater due to the existing cleaning device and the hot gas due to the use of an electric device or filter, and using only physical force It can be easily separated to improve the dust collection efficiency, thereby increasing the applicability in all industrial sites. The present invention is to install a plurality of long and flat plate in parallel with the axial direction on the inner, outer circumference, the cylindrical rotor consisting of the inner circumferential side wing and outer circumferential wing arranged to have a different discharge direction, the existing cyclone It is built in the center of the main body of the dust collector and is driven by a motor mounted on the upper part of the main body. Therefore, dust is more efficiently and smoothly separated by vortices acting in different delivery directions when the rotor is rotated by the motor. I want to. In other words, the dust that is introduced into the main body and moves outwards is somewhat largely settled to the bottom by its own weight, and finer dust is settled again by hitting the outer wing of the rotor to block the inflow into the center of the rotor. In addition, the cleaned gas is sucked into the rotor center by the inner circumferential wing formed on the inner circumference through the outer circumferential wing and is discharged to the discharge port configured on the upper side by riding the upward flow generated in the center.

In addition, the present invention is configured to radially constitute a plurality of vertical wings in the upper outer circumference of the rotor close to the gas inlet to greatly increase the turning force of the dust dust introduced, and also forms a spiral wing on the upper end in contact with the gas inlet Thus, a part of the cleaning gas discharged to the discharge port is reversely introduced along the spiral groove of the spiral wing to prevent the dust gas introduced through the gas inlet from leaking into the gap formed between the rotor and the inner wall of the main body.

1 is a partial cutaway configuration of the present invention

Figure 2 is a front sectional view showing the internal configuration of the cyclone dust collector of the present invention

Figure 3 is an enlarged perspective view of the excerpts of the present invention

Figure 4 is a cross-sectional view showing a flow state of the vortex acting in the rotor of the present invention

Figure 5 is a cross-sectional view showing the structure of a conventional cyclone dust collector

<Description of the symbols for the main parts of the drawings>

2: rotor 3,3 ': bearing housing

4: rotating shaft 5: supporting plate

6: inner peripheral wing 6 ': outer peripheral wing

7: through-hole 8: axial flow wing

9: spiral wings 10: body

11 gas inlet 12 outlet

13: dust collecting tank M: motor

A conventional cyclone dust collector comprising a dust collecting tank 13 and a cylindrical body 10 vertically integrated therein, a gas inlet 11 formed in a tangential direction on the upper outer wall of the body, and an outlet 12 on the other side. The support plate body 5 is fixedly installed on the inner bottom of the main body 10, and the bearing housings 3 and 3 'are formed on the upper surface of the support plate body and the lower surface of the main body, while the rotating shaft 4 is centered. And, the upper and lower ends are integrally supported, and the inner circumference is arranged in a plurality of long and flat plate to be rotated counterclockwise at regular intervals in communication with the inside through the through hole (7) in the upper portion and parallel to the axis from the predetermined portion to the inner circumference A cylindrical rotor (2) consisting of a side blade (6) and an outer circumferential blade (6 ') arranged in the opposite direction on the outer circumference in contact with the blade (6), which is mounted on the upper part of the main body by building it in a bearing housing by a rotating shaft. It is a structure made to be driven by the motor (M).

Figure 3 is an enlarged perspective view of the main portion of the present invention, a view showing the structure of the rotor. Rotor 2 of the present invention, as shown in Figure 3, is opened by a plurality of through holes (7) in the upper cylindrical and communicate with the inside, the upper and lower ends are integrally supported with the rotary shaft (4), respectively have. And the cyclone body 10 is configured such that the upper portion has a narrower diameter than the lower portion, the narrow inner upper surface is arranged to accommodate the upper end of the rotor 2 to some extent and the rotor (2) by the motor (M) When the c) rotates, a gap that does not come into contact with the inner wall surface of the main body 10 is provided. In the rotor 2, the inner circumferential side wing 6 and the outer circumferential side wing 6 'are placed in parallel with the rotation axis 4 about 2/3 from the bottom to the upper portion. This free and in communication with the inner central portion is also in communication with the upper through hole (7). And the remaining upper part of the rotor except the wing portion is made of a conventional cylindrical outer surface is sealed is not directly introduced into the rotor when the dust gas flows through the gas inlet (11).

And the inner circumferential side wing 6 and outer circumferential side wing 6 'each composed of the inner and outer circumferences of the rotor have an air blowing amount generated according to the width and length of the wing and the twisted angle of the inner wall of the main body 10. Since it is closely related to the inner diameter size of the circumference, that is, the turning section and the rotational speed of the motor, it is preferable to install in consideration of this.

In addition to the above-described configuration, the present invention has a plurality of radially axial blades 8 parallel to the rotation shaft 4 on the outer circumference of the rotor 2 proximate to the gas inlet 11 of the main body 10. . Therefore, the dust gas flowing through the gas inlet 11 and pivoting in the tangential direction is further increased by the axial blade 8 so that smooth separation can be performed.

The present invention also formed a spiral wing 9 along the outer surface of the rotor 2 so that a small amount of cleaned gas on the outlet 12 side can be introduced back. Therefore, when the rotor 2 rotates to one side, a small amount of cleanly cleaned gas before being discharged through the outlet 12 is guided along the spiral groove of the spiral blade 9 to be introduced back into the main body so that the gas inlet Through the dust gas introduced into the main body can be prevented from leaking into the gap formed between the outer wall of the rotor (2) and the inner wall of the main body (10).

Hereinafter, the operation of the cyclone dust collector according to the present invention and the effects thereof will be described with reference to FIGS. 2 to 4.

The rotor 2 mounted on the main body 10 and connected by the rotary shaft 4 by the driving of the motor M connected to an external power source (not shown) and built up vertically in the main body 10 is connected to the motor. Rotate in the same direction. At this time, the inner circumferential side blade 6 and the outer circumferential side blade 6 'of the rotor 2 rotate in the same direction, but vortices having different discharge directions are generated. The flow of the vortex generated at this time is as shown by dividing into a dashed-dotted line and a double-dotted line shown in FIG. That is, the arrow shown by the dashed-dotted line is a flow state of the vortex generated due to the rotation of the outer circumferential side blade 6 ', and the arrow of the dashed chain line shows the flow state of the vortex occurring in the inner circumferential side blade 6. That is, the outer circumferential side vane 6 'is caused to generate a vortex that is pushed outward by the rotational force of the rotor, and on the contrary, the inner circumferential side vane 6 generates vortices suctioned from the outer side to the inner side at the same time. As described above, the rotor 2 rotating in one side generates vortices in opposite directions acting in different feeding directions by the inner circumferential blade 6 and the outer circumferential blade 6 '.

In addition, when the dust-containing gas generated from an external dust generating source (not shown) is blown and supplied by the blowing means (not shown) from the outside of the gas inlet 11 of the main body 10, the dust-containing gas is cyclone. The turning force of the dust gas is greatly increased by the axial blades 8 formed in the upper part of the rotor which flows in the tangential direction of the main body 10 and naturally rotates along the inner wall and immediately rotates at high speed. Therefore, the separation of dust gas turning along the inner wall of the main body is performed smoothly, because the dust has a constant mass. In other words, as shown by F = mew² (F; centrifugal force, m; mass, e; distance from the center of the cyclone body to the inner wall, w; angular acceleration), a gas close to zero has a centrifugal force. Dust that has little effect but constant mass is collected by falling into this dust collection tank 13 while turning along the cyclone body inner wall under the influence of centrifugal force.

The cleaning gas separated from the dust by the centrifugal force, which is strongly given the turning force by the axial blade 8, passes between the outer circumferential blades 6 'of the rotor 2, since it is hardly affected by the centrifugal force. At this time, the minute dust contained in the cleaning gas collides with the outer circumferential blade 6 'which rotates at high speed and is bounced outward by its collision force, and moves outward with the vortex generated from the outer circumferential blade. (10) The inner wall is dropped to the bottom and is again collected in the dust collecting tank 13. The gas separated and cleaned again passes through the outer circumferential side blade 6 'and immediately flows into the inner central portion of the rotor 2 by the suction force of the inner circumferential side blade 6 rotating on the inner circumference. At this time, since the bottom surface of the rotor 2 is sealed by the inner circumferential side blade 6, the suction flows into the center of the rotor as the natural flow forms the upward flow moving upward. The cleaned gas rises in this upward flow, exits the upper through hole 7 of the rotor 2, and is discharged to the outside through the outlet 12 at the upper portion of the main body so as to be discharged to the atmosphere or the next work process.

In particular, the present invention can solve the pressure loss that is increased as the dust gas stays in the main body for a predetermined time by the blowing means blown from the outside, just like the conventional cyclone dust collector. That is, since constant pressure is always maintained in the main body by the vortices generated in the rotor 2 and acting in different directions, the inflow and exhaust of the exhaust gas is smoothly performed, and the pressure loss is low and the high dust collection rate is guaranteed. You can do it.

On the other hand, a small amount of cleaning gas is sucked by the rotational force of the helical blade (9) formed on the outer peripheral surface of the rotor 2 in the process of cleaning gas is discharged through the upper outlet 12 of the main body 10 It is guided along the groove to backflow into the body. Therefore, the dust gas introduced through the gas inlet 11 of the main body can be prevented from leaking into a gap formed between the outer surface of the rotor 2 and the inner wall of the main body 10.

As described above, the present invention ensures a high dust collection rate by maintaining a constant pressure at all times without pressure loss in the main body by the vortex generated from the rotor, and in particular, it can be used at a wide range of temperature without the restriction of exhaust gas temperature Therefore, it is possible to greatly improve the dust collection rate by using only physical force, so that it is applicable to all industrial sites. In addition, the present invention can be used simply by mounting on the existing cyclone dust collector because the structure and assembly of the rotor is simple, it is possible to expect high dust collection efficiency at a lower cost of installation.

Claims (3)

A conventional cyclone dust collector comprising a dust collecting tank 13 and a cylindrical body 10 vertically integrated therein, a gas inlet 11 formed in a tangential direction on the upper outer wall of the body, and an outlet 12 on the other side. The support plate body 5 is fixedly installed on the inner bottom of the main body 10, and the bearing housings 3 and 3 'are formed on the upper surface of the support plate body and the lower surface of the main body, while the rotating shaft 4 is centered. And, the upper and lower ends are integrally supported, and the inner circumference is arranged in a plurality of long and flat plate to be rotated counterclockwise at regular intervals in communication with the inside through the through hole (7) in the upper portion and parallel to the axis from the predetermined portion to the inner circumference A cylindrical rotor (2) consisting of a side blade (6) and an outer circumferential blade (6 ') arranged in the opposite direction on the outer circumference in contact with the blade (6), which is mounted on the upper part of the main body by building it in a bearing housing by a rotating shaft. Characterized in that made to be driven by the motor (M) The cyclone collector. The upper periphery of the rotor (2) close to the gas inlet (11) of the main body (10) is provided with a plurality of axial blades (8) radially to increase the turning force of the dust gas. Cyclone dust collector, characterized in that. 2. The cyclone dust collector as claimed in claim 1, wherein a spiral blade (9) is formed at the upper end of the rotor (2) so that a small amount of cleaned gas on the outlet (12) side can be introduced back.