CN217795111U

CN217795111U - Tail gas dust removal device

Info

Publication number: CN217795111U
Application number: CN202221810855.7U
Authority: CN
Inventors: 肖菊花; 何洪; 李国奇; 郭柯利
Original assignee: Chengdu Yuanyong Technology Development Co ltd
Current assignee: Chengdu Yuanyong Technology Development Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-11-15
Anticipated expiration: 2032-07-14

Abstract

A tail gas dust removal device relates to the technical field of tail gas dust collection hoods, and adopts the technical scheme that the tail gas dust removal device comprises a dust collection hood, a filter screen and a filter screen cleaning device, wherein the dust collection hood is provided with an air inlet; openings are formed in one surface, facing the cleaning cavity, of the dust collection cover and one surface, far away from the dust collection cover, of the cleaning cavity, the dust collection cover is provided with a sliding chute, the sliding chute extends to the opening in one surface, far away from the dust collection cover, of the cleaning cavity, and the filter screen is inserted into the opening and is in sliding connection with the sliding chute; the bottom of the cleaning cavity is provided with a dust collecting port which extends into the dust collecting box; the air injection device comprises a compressed air pipe and a plurality of spray heads, the spraying directions of the spray heads face towards the filter screen, and the compressed air pipe is connected with an air compressor. The utility model is provided with the filter screen on the dust collecting cover to filter dust, thereby avoiding the dust from entering the air outlet pipe to cause blockage; the filter screen cleaning device can clean the filter screen in time, shorten the cleaning time and improve the production efficiency.

Description

Tail gas dust removal device

Technical Field

The utility model relates to a tail gas dust cage technical field especially relates to a tail gas dust collector.

Background

The waste paint slag is the residue generated by paint waste or the slag generated by the peeling of the coated paint, belongs to HW12 dangerous waste which is clear in national dangerous waste records, and needs to be managed and disposed according to the dangerous waste. In the paint slag treatment process, a dust collecting hood is arranged at the discharge end of the paint slag comprehensive treatment machine to collect tail gas generated in the paint slag treatment process, the tail gas contains organic waste gas and a large amount of dust, and the dust easily causes the blockage of an air outlet pipe of a gas collecting hood in the conventional process.

SUMMERY OF THE UTILITY MODEL

To the problem that dust causes the gas collecting channel outlet duct to block up among the prior art scheme, the utility model provides a tail gas dust collector.

The utility model provides a following technical scheme: a tail gas dust removal device comprises a dust hood, a filter screen and a filter screen cleaning device, wherein the dust hood is provided with an air inlet, the filter screen cleaning device comprises a cleaning cavity arranged on one side of the dust hood, a dust collecting box detachably connected with the dust hood and an air injection device; openings are formed in one surface, facing the cleaning cavity, of the dust collection cover and one surface, far away from the dust collection cover, of the cleaning cavity, the positions of the two openings correspond to each other, sliding grooves corresponding to the positions of the openings are formed in the inner walls, on the two sides of the openings, of the dust collection cover, the sliding grooves extend to the openings in the surface, far away from the dust collection cover, of the cleaning cavity, and the filter screen is inserted into the openings and is in sliding connection with the sliding grooves; the bottom of the cleaning cavity is provided with a dust collecting port, and the dust collecting port extends into the dust collecting box; air jet equipment is including setting up the compressed air pipe and edge that air intake one side was kept away from to the clearance intracavity and be in the filter screen compressed air pipe axial direction sets gradually a plurality of shower nozzles, the injection direction orientation of shower nozzle the filter screen, compressed air pipe is connected with air compressor.

Preferably, the cleaning cavity can be detachably connected with a brush for scraping one surface of the filter screen facing the air inlet.

Preferably, the brush sets up in two opening centers, the brush all is provided with in the both sides of filter screen slip direction the shower nozzle.

Preferably, the dust collecting opening is further provided with at least one set of wind blocking inclined plates.

Preferably, an air outlet pipe is further arranged at one end of the dust collection cover far away from the air inlet, and the air outlet pipe is connected to the air inlet of the fan.

The utility model has the advantages that: a filter screen is arranged on the dust collecting cover to filter dust, so that the dust is prevented from entering the air outlet pipe to cause blockage; the filter screen and dust cage sliding connection, and be provided with filter screen cleaning device and in time clear up the filter screen, simplify filter screen clearance step, shorten the clearance time, improve production efficiency.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

Fig. 2 is a front view of an embodiment of the present invention.

Reference numerals: 1-dust collecting hood, 11-air inlet, 12-air outlet pipe, 2-filter screen, 3-filter screen cleaning device, 31-cleaning cavity, 32-dust collecting box, 33-dust collecting port, 34-compressed air pipe, 35-nozzle, 36-brush and 37-wind blocking inclined plate.

Detailed Description

The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement the embodiments after studying the specification. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The utility model provides a tail gas dust collector as shown in figures 1-2, which comprises a dust cage 1, wherein the dust cage 1 is provided with an air inlet 11, and further comprises a filter screen 2 and a filter screen cleaning device 3. The dust hood 1 can be a cuboid or a cone and is made of a steel plate, an air inlet of the dust hood 1 is covered at the discharge end of the paint slag comprehensive treatment machine, an air outlet pipe 12 is further arranged at one end, away from the air inlet, of the dust hood 1, and is connected with a fan, and the fan generates negative pressure in the air outlet pipe 12 and the dust hood 1, so that tail gas from the discharge end can be collected conveniently. The filter screen 2 is used for filtering dust in the tail gas and is generally vertical to the central axis of the dust hood.

The filter screen cleaning device 3 comprises a cleaning cavity 31 arranged at one side of the dust hood 1, a dust collecting box 32 detachably connected with the dust hood 1 and an air injection device; openings are formed in one surface, facing to the cleaning cavity 31, of the dust collection cover 1 and one surface, far away from the dust collection cover 1, of the cleaning cavity 31, the positions of the two openings correspond to each other, sliding grooves corresponding to the positions of the openings are formed in the inner walls of the two sides of the openings of the dust collection cover 1, the sliding grooves extend to the openings in one surface, far away from the dust collection cover 1, of the cleaning cavity 31, and the filter screen 2 is inserted into the openings and is connected with the sliding grooves in a sliding mode; the bottom of the cleaning cavity 31 is provided with a dust collecting opening 33, and the dust collecting opening 33 extends into the dust collecting box 32.

The cleaning cavity 31 can be enclosed by steel plates, the filter screen 2 is inserted into the cleaning cavity 31 and the dust hood 1 from the opening, the length of the filter screen can be larger than the sum of the thicknesses of the cleaning cavity 31 and the dust hood 1, so that a part of the filter screen 2 still protrudes out of the surface of the cleaning cavity 31 after being completely inserted into the dust hood 1, the filter screen 2 is convenient for an operator to slide, and further, the filter screen 2 is also provided with a handle. The chute can be made into a groove-shaped structure by adopting a steel plate and then welded on the inner walls of the dust hood 1 and the cleaning cavity 31, or grooves are processed on the inner walls of the dust hood 1 and the cleaning cavity 31.

The air jet device is used for jetting compressed air to the filter screen 2 to enable dust attached to the filter screen 2 to be separated from the filter screen. Specifically, the air jet system is including setting up in the clearance chamber 31 and be in filter screen 2 and keep away from the compressed air pipe 34 of air intake 11 one side and follow a plurality of shower nozzles 35 that compressed air pipe 34 axial direction set gradually, the injection direction orientation of shower nozzle 35 filter screen 2. The compressed air pipe 34 is connected with an air compressor, the spray head 35 can adopt a flat nozzle or a solid conical spray nozzle, and a plurality of spray heads 35 can cover a strip-shaped area of the filter screen 2 perpendicular to the sliding direction of the filter screen.

When the dust hood 1 works normally, the filter screen 2 is completely inserted into the dust hood 1 to filter dust in the tail gas, so that the dust is prevented from being deposited in the air outlet pipe 12 to cause blockage. When the dust attached to the filter screen 2 is too much and needs to be cleaned, the air compressor is started, the high-pressure air is sprayed out from the spray nozzle 35 to wash the filter screen 2, then the filter screen 2 is slowly pulled out from the opening, and in the process, the dust is separated from the filter screen 2 and falls into the dust collection opening 33 and is collected in the dust collection box 32. After cleaning, the air compressor is turned off and the filter screen 2 is reinserted.

Preferably, a brush 36 for scraping the side of the filter screen 2 facing the air inlet 11 is detachably connected to the cleaning chamber 31. The brush 36 is arranged on the side of the filter screen 2 facing the air inlet 11, most of the dust is attached to the side, and the dust can be further scraped by the brush 36.

Preferably, the brush 36 is disposed at the center of the two openings, and the spray heads 35 are disposed on both sides of the brush 36 in the sliding direction of the filter screen 2. Along with the pulling out of the filter screen 2, the spray nozzle 35 close to one side of the dust collection cover 1 blows out the dust, the brush 36 scrapes off the dust adhered on the filter screen 2, the spray nozzle 35 far away from one side of the dust collection cover 1 washes the filter screen 2 for the second time, and the cleaning effect is improved.

Preferably, the dust collection port 33 is further provided with at least one set of inclined choke plates 37, as shown in fig. 2, for reducing the wind speed and preventing dust from flying in the dust collection box 2.

Preferably, an air outlet pipe 12 is further disposed at an end of the dust hood 1 away from the air inlet 11, and the air outlet pipe 12 is connected to the air inlet of the fan.

The foregoing is a more particular and detailed description of one or more embodiments of the invention, which should not be taken as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a tail gas dust collector, includes dust cage (1), dust cage (1) is provided with air intake (11), its characterized in that: the filter screen cleaning device (3) comprises a cleaning cavity (31) arranged on one side of the dust collection cover (1), a dust collection box (32) detachably connected with the dust collection cover (1) and an air injection device;

one surface of the dust collection cover (1) facing the cleaning cavity (31) and one surface of the cleaning cavity (31) far away from the dust collection cover (1) are provided with openings, the positions of the two openings correspond to each other, sliding grooves corresponding to the positions of the openings are formed in the inner walls of the two sides of the openings of the dust collection cover (1), the sliding grooves extend to the openings in the surface of the cleaning cavity (31) far away from the dust collection cover (1), and the filter screen (2) is inserted into the openings and is in sliding connection with the sliding grooves; the bottom of the cleaning cavity (31) is provided with a dust collecting opening (33), and the dust collecting opening (33) extends into the dust collecting box (32);

air jet equipment is including setting up in clearance chamber (31) and be in filter screen (2) and keep away from compressed air pipe (34) and the edge of air intake (11) one side compressed air pipe (34) a plurality of shower nozzles (35) that axial direction set gradually, the injection direction orientation of shower nozzle (35) filter screen (2), compressed air pipe (34) are connected with air compressor.

2. The exhaust gas dedusting device according to claim 1, characterized in that: the cleaning cavity (31) can be also detachably connected with a brush (36) used for scraping and brushing one surface of the filter screen (2) facing the air inlet (11).

3. The exhaust gas dedusting device according to claim 2, characterized in that: brush (36) set up at two opening centers, brush (36) all are provided with in filter screen (2) sliding direction's both sides shower nozzle (35).

4. The exhaust gas dedusting device according to claim 1, characterized in that: the dust collection port (33) is also provided with at least one group of inclined choke plates (37).

5. The exhaust gas dedusting device according to claim 1, characterized in that: an air outlet pipe (12) is further arranged at one end, far away from the air inlet (11), of the dust collection cover (1), and the air outlet pipe (12) is connected to the air inlet of the fan.