CN220969514U - Cyclone separator - Google Patents

Abstract

The utility model provides a cyclone separator, which solves the problem of outflow of solid particles, and has the technical scheme that: the device comprises a cone, an exhaust channel and a dust collection bin, wherein the exhaust channel is communicated with the top of the cone, and the dust collection bin is communicated with the bottom of the cone; the filter device is arranged in the exhaust channel and is in sliding connection with the exhaust channel, the exhaust channel is communicated with a backflow channel, an air inlet of the backflow channel is positioned at the bottom of the filter device, an air outlet of the backflow channel is positioned at the top of the filter device, and a sleeve matched with the air inlet is arranged at the bottom of the filter device; the cone bottom is provided with spiral reflux baffle, the border of reflux baffle upwards inclines. The purpose of fully separating gas from solid of the dust-containing gas is achieved.

Description

Cyclone separator

Technical Field

The invention belongs to the field of gas-solid separation equipment, and particularly relates to a cyclone separator.

Background

Cyclone separators are a type of apparatus for separating gas from solids. The working principle is that solid particles or liquid drops with larger inertial centrifugal force are thrown to the outer wall surface for separation by the rotary motion caused by tangential introduction of air flow. The cyclone separator has the main characteristics of simple structure, high operation elasticity, high efficiency, convenient management and maintenance and low price, is used for capturing dust with the diameter of more than 5-10 mu m, is widely applied to the pharmaceutical industry, is particularly suitable for the conditions of thicker dust particles, larger dust concentration and high temperature and high pressure, and is separation equipment with wide industrial application.

When the cyclone separator works, the air flow in the cyclone separator can be divided into short-circuit flow, main air flow and bottom sinking flow from top to bottom, and negative pressure areas are formed at the lower part of the main air flow and the top of the bottom sinking air flow in the cyclone separator under the influence of exhaust air flow, so that particles in dust-containing air flow are easily brought into the exhaust air flow and then exhausted along with an exhaust channel, and the gas-solid separation effect is poor.

Disclosure of Invention

The invention aims to provide a cyclone separator capable of effectively preventing outflow of solid particles.

In order to achieve the above object, the present invention provides a cyclone separator, comprising a cone, an exhaust passage and a dust collection bin, wherein the exhaust passage is communicated with the top of the cone, and the dust collection bin is communicated with the bottom of the cone;

The filter device is arranged in the exhaust channel and is in sliding connection with the exhaust channel, the exhaust channel is communicated with a backflow channel, an air inlet of the backflow channel is positioned at the bottom of the filter device, an air outlet of the backflow channel is positioned at the top of the filter device, and a sleeve matched with the air inlet is arranged at the bottom of the filter device;

The cone bottom is provided with spiral reflux baffle, the border of reflux baffle upwards inclines.

Preferably, the filtering device comprises a supporting ring and a filtering cloth, the filtering cloth is installed in the supporting ring, the supporting ring is in sliding connection with the inside of the exhaust channel, and the supporting ring is connected with a reset spring.

Preferably, a containing cavity is arranged in the exhaust channel, the supporting ring is positioned in the containing cavity, the upper end and the lower end of the containing cavity can limit the supporting ring, and the reset spring is positioned between the top of the supporting ring and the containing cavity.

Preferably, the diameter of the filter cloth is larger than the inner diameter of the supporting ring, and the air outlet of the backflow channel faces the direction of the filter cloth.

Preferably, the sleeve is mounted to the bottom of the support ring.

Preferably, a filter screen is arranged in the exhaust channel, and the filter screen is positioned at the top of the air outlet.

Preferably, a vortex cover is arranged at the top of the dust collection bin.

Compared with the prior art, the novel use has the beneficial effects that: according to the utility model, the filtering device is additionally arranged in the air outlet channel, so that solid particles can be effectively prevented from overflowing due to the influence of air flow in the negative pressure area, meanwhile, the spiral backflow baffle is additionally arranged at the periphery of the negative pressure area, so that the contact between the solid particles and the negative pressure area can be effectively reduced, the amount of particles taken away by the discharged air flow is reduced, and meanwhile, the spiral direction of the backflow baffle is the same as the spiral direction of the air flow in the cone body, and the influence of the backflow baffle on the particle separation effect can be effectively reduced.

Meanwhile, when gas-solid separation is carried out, the air outlet of the backflow channel can be shielded by the sleeve, the discharged air flow is directly discharged through the filtering device, solid particles accumulated by the filtering cloth are continuously accumulated along with continuous operation of the filtering device, so that permeability of the filtering cloth is reduced, resistance of the filtering device to the discharged air flow is increased along with the accumulated solid particles, the supporting ring is enabled to move upwards under the action of the discharged air flow, the sleeve is driven to move upwards, the backflow channel is enabled to be communicated with the inside of the cone, the discharged air flow can backwash the top of the filtering cloth through the backflow channel, after dust accumulation of the filtering cloth is cleaned, the acting force of the backflushing air flow on the filtering cloth is reduced, the filtering cloth is driven to block the air inlet of the backflow channel under the action of the reset spring and the gravity, the backflow channel is closed, and thus the self-cleaning effect of the filtering device can be realized.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.

Fig. 1 shows a schematic structure of the present utility model.

Fig. 2 shows a schematic view of the structure of the air outlet channel of the present utility model.

In the figure: 1. a cone; 2. an exhaust passage; 3. a dust collection bin; 4. a return passage; 5. an air inlet; 6. an air outlet; 7. a sleeve; 8. a reflux baffle; 9. a support ring; 10. a filter cloth; 11. a return spring; 12. a receiving chamber; 13. a filter screen; 14. a swirl cover.

Description of the embodiments

Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Referring to fig. 1 and 2, the utility model provides a cyclone separator, which comprises a cone 1, an exhaust channel 2 and a dust collection bin 3, wherein the exhaust channel 2 is communicated with the top of the cone 1, and the dust collection bin 3 is communicated with the bottom of the cone 1; a filtering device is arranged in the exhaust channel 2 and is in sliding connection with the exhaust channel 2, the exhaust channel 2 is communicated with a backflow channel 4, an air inlet 5 of the backflow channel 4 is positioned at the bottom of the filtering device, an air outlet 6 of the backflow channel 4 is positioned at the top of the filtering device, and a sleeve 7 matched with the air inlet 5 is arranged at the bottom of the filtering device; the bottom of the cone 1 is provided with a spiral backflow baffle 8, and the edge of the backflow baffle 8 is inclined upwards.

Specifically, the dust-containing gas enters the inner cavity of the cone 1 through the inlet at the top of the cone 1, the dust-containing gas spirally descends in the cone 1, the solid dust particles descend along the wall of the cone 1 under the action of centrifugal force, the separated gas ascends from the bottom of the cone 1 and is discharged through the exhaust channel 2, and the filtering device in the exhaust channel 2 can filter solid particles mixed in the exhaust gas and can effectively prevent the solid particles from flowing outwards.

The reflux baffle 8 is connected with the inner wall of the cone 1 in a welded manner, the reflux baffle 8 is arranged at the bottom of the cone 1, the reflux baffle 8 can reduce the contact between solid particles and exhaust air flow around the negative pressure area, the outflow of the solid particles is effectively reduced, the separated solid particles can enter the dust collection bin 3 along the reflux baffle 8, the edge of the reflux baffle 8 is inclined upwards, and the influence on the flow speed of the exhaust air flow in the negative pressure area can be reduced.

Preferably, the filtering device comprises a supporting ring 9 and a filtering cloth 10, the filtering cloth 10 is installed in the supporting ring 9, the supporting ring 9 is in sliding connection with the inside of the exhaust channel 2, and the supporting ring 9 is connected with a reset spring 11. The exhaust channel 2 is internally provided with a containing cavity 12, the supporting ring 9 is positioned in the containing cavity 12, the upper end and the lower end of the containing cavity 12 can limit the supporting ring 9, and the reset spring 11 is positioned between the top of the supporting ring 9 and the containing cavity 12. The sleeve 7 is mounted on the bottom of the support ring 9.

Specifically, the supporting ring 9 is arranged in the accommodating cavity 12 and can slide in the accommodating cavity 12, and a rubber ring can be arranged on the outer ring of the supporting ring 9, so that the sealing effect between the supporting ring 9 and the accommodating cavity 12 is improved. The return spring 11 can fix the support ring 9 when the stress of the filter cloth 10 is small, and drives the support ring 9 to return after dust accumulation of the filter cloth 10. The sleeve 7 is glued or welded to the bottom of the support ring 9.

Preferably, the diameter of the filter cloth 10 is larger than the inner diameter of the supporting ring 9, and the air outlet 6 of the return channel 4 faces the direction of the filter cloth 10.

Specifically, the filter cloth 10 is connected with the support ring 9 in an adhesive manner, and the filter cloth 10 with a larger area is adopted, so that the filter area and the stressed area of the filter cloth 10 can be increased, and the support ring 9 can be driven to slide when more dust is accumulated on the filter cloth 10. Meanwhile, when the air flow of the return channel 4 blows to the top of the filter cloth 10 with a larger area, downward bubbling occurs, so that the attached dust can be conveniently shaken off.

Preferably, a filter screen 13 is arranged in the exhaust channel 2, and the filter screen 13 is positioned at the top of the air outlet 6.

Specifically, when the gas flows out of the return channel 4, the filter screen 13 filters the gas discharged from the return channel 4 to prevent the solid particles from flowing out along the return channel 4.

Preferably, the top of the dust collection bin 3 is provided with a vortex cover 14.

In particular, the swirl cover 14 prevents solid particles within the dust bin 3 from floating into the vertebral body.

When the dust-containing gas-solid separation device works, dust-containing gas is separated through the cone 1, separated solid particles are conveyed to the backflow baffle plate 8 along the inner wall of the cone 1, and then conveyed to the dust collection bin 3 along the backflow baffle plate 8, the separated discharged gas passes through the filtering device in the air outlet channel, so that the solid particles can be effectively prevented from overflowing due to the influence of air flow in a negative pressure area, during the gas-solid separation process, the sleeve 7 shields the air outlet 6 of the backflow channel 4, the discharged gas flow is directly discharged through the filtering device, when more solid particles accumulated by the filter cloth 10, the supporting ring 9 is driven to move upwards under the action of the discharged gas flow, the sleeve 7 is driven to move upwards, so that the backflow channel 4 is communicated with the inside of the cone 1, the discharged gas flow back-washes the top of the filter cloth 10 through the backflow channel 4, after dust accumulation of the filter cloth 10 is cleaned, the filter cloth 10 is reduced by the acting force of the back-flushing gas flow, the back spring 11 drives the supporting ring 9 to reset, and the supporting ring 9 drives the sleeve 7 to block the air inlet 5 of the backflow channel 4, so that the discharged gas continues to be filtered through the filter cloth 10.

The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.

Claims (7)

1. The cyclone separator is characterized by comprising a cone (1), an exhaust channel (2) and a dust collection bin (3), wherein the exhaust channel (2) is communicated with the top of the cone (1), and the dust collection bin (3) is communicated with the bottom of the cone (1);

The filter device is arranged in the exhaust channel (2), the filter device is in sliding connection with the exhaust channel (2), the exhaust channel (2) is communicated with a backflow channel (4), an air inlet (5) of the backflow channel (4) is positioned at the bottom of the filter device, an air outlet (6) of the backflow channel (4) is positioned at the top of the filter device, and a sleeve (7) matched with the air inlet (5) is arranged at the bottom of the filter device;

the bottom of the cone (1) is provided with a spiral backflow baffle (8), and the edge of the backflow baffle (8) is inclined upwards.

2. A cyclone separator according to claim 1, characterized in that the filtering means comprise a supporting ring (9) and a filter cloth (10), the filter cloth (10) is mounted in the supporting ring (9), the supporting ring (9) is slidably connected with the inside of the exhaust passage (2), and the supporting ring (9) is connected with a return spring (11).

3. A cyclone separator according to claim 2, wherein the exhaust passage (2) is provided with a containing cavity (12), the supporting ring (9) is located in the containing cavity (12), the upper end and the lower end of the containing cavity (12) can limit the supporting ring (9), and the return spring (11) is located between the top of the supporting ring (9) and the containing cavity (12).

4. A cyclone separator according to claim 2, characterized in that the diameter of the filter cloth (10) is larger than the inner diameter of the support ring (9), the air outlet (6) of the return channel (4) being directed towards the filter cloth (10).

5. A cyclone separator according to claim 2, characterized in that the sleeve (7) is mounted to the bottom of the support ring (9).

6. A cyclone separator according to claim 1, characterized in that a filter screen (13) is arranged in the exhaust channel (2), which filter screen (13) is located at the top of the air outlet (6).

7. A cyclone separator according to claim 1, characterized in that the top of the dust bin (3) is provided with a swirl shroud (14).