CN212757888U

CN212757888U - Dust filter

Info

Publication number: CN212757888U
Application number: CN202021541410.4U
Authority: CN
Inventors: 李骏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-03-23
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a dust filter, including the rack, be provided with the draught fan on the rack, the air-out end of draught fan is linked together with inlet channel's one end, and inlet channel's the other end is provided with fixed the lower half of cartridge filter on the rack is linked together, and the bottom of cartridge filter is linked together with the one end of blow off pipe, and the other end and the effluent water sump of blow off pipe are linked together, and the inside of cartridge filter has set gradually one-level filter screen and second grade filter screen in the top with inlet channel's intercommunication position, and the cartridge filter all is provided with the shower along the horizontal direction in the top of one-. The utility model discloses at the during operation, the shower nozzle of two shower below to one-level filter screen and second grade filter screen wash and drench the clean water and will gather dust on two filter screens and wash down, have avoided the jam after the filter screen uses for a long time to take place, have guaranteed filtration efficiency and effect.

Description

Dust filter

Technical Field

The utility model relates to a dust filters technical field, especially relates to a dust filter.

Background

In some industrial and mining processing places, waste gas generated in the production process contains a large amount of dust and other harmful substances, and the waste gas can generate adverse effects on the natural environment if directly discharged into the outside air without being treated, so that the dust removal treatment of the industrial and mining waste gas is necessary. At present, the dust filter mainly achieves the purpose of dust removal through a dust blocking mode of the filter screen, but after long-term use, a large amount of dust is accumulated near the filter screen, so that the filter screen is blocked, and the dust filtering efficiency and effect are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dust filter solves the technical problem who mentions in the above-mentioned background art.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a dust filter, which comprises a rack, wherein a draught fan is arranged on the rack, the air outlet end of the draught fan is communicated with one end of an air inlet channel, a spiral electric heating pipe is fixedly arranged on the inner peripheral wall of the air inlet channel, the electric heating pipe is electrically connected with an electric heater arranged on the rack, the other end of the air inlet channel is communicated with the lower half part of a filter cartridge fixedly arranged on the rack, the bottom of the filter cartridge is communicated with one end of a blow-off pipe, the other end of the blow-off pipe is communicated with a sewage pool, a primary filter screen and a secondary filter screen are sequentially arranged in the interior of the filter cartridge above the communicated part of the air inlet channel, spray pipes are arranged above the primary filter screen and the secondary filter screen along the horizontal direction, and the lower part of each spray pipe is respectively and uniformly provided with a, the free ends of the spray pipes respectively extend to the outside of the filter cartridges and are communicated with one end of a water supply pipe, a water pump is arranged in the middle of the water supply pipe, the other end of the water supply pipe is communicated with a clean water supply source, and the upper ends of the filter cartridges are communicated with an air outlet channel.

Furthermore, the parts of the spray pipes, which are positioned outside the filter cylinder, are respectively provided with an electric valve.

Further, a gas-water separation device is arranged between the air outlet channel and the filter cartridge.

Still further, the gas-water separation device includes outer barrel, the upper end both sides of outer barrel are provided with air inlet and gas outlet respectively, the air inlet with the cartridge filter is linked together, the gas outlet with the passageway of giving vent to anger is linked together, the inside of outer barrel is provided with interior barrel, the upper end of interior barrel is the inclined plane form and is close to one side of air inlet is higher than and is close to one side of gas outlet, the upper end periphery of interior barrel with be fixed with the ring baffle between the inner wall of outer barrel, be provided with spiral helicine drainage plate on the periphery wall of interior barrel, the lower extreme and the drain pipe of outer barrel are linked together.

Compared with the prior art, the utility model discloses a beneficial technological effect:

the utility model discloses at the during operation, waste gas is successively through one-level filter screen and second grade filter screen, realizes the interception and the filtration to the dust, supplies with the clean water in two delivery pipe looks showers simultaneously, two shower nozzles below to one-level filter screen and second grade filter screen flush the clean water and will gather dust on two filter screens and wash down, have avoided the jam after the filter screen uses for a long time to take place, have guaranteed filtration efficiency and effect. On the other hand, the flushing water can adsorb harmful substances soluble in water in the waste in the falling process, so that the waste gas purification effect is further improved.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a schematic structural view of the present invention;

description of reference numerals: 1. a rack; 2. an induced draft fan; 3. an air intake passage; 4. an electric heating tube; 5. an electric heater; 6. a filter cartridge; 7. a blow-off pipe; 8. a first-stage filter screen; 9. a secondary filter screen; 10. a shower pipe; 11. a spray head; 12. a water supply pipe; 13. an electrically operated valve; 14. an air outlet channel; 15. an outer cylinder; 16. an air inlet; 17. an air outlet; 18. an inner cylinder; 19. a ring spacer; 20. a drainage plate; 21. a drain pipe; 22. and (4) a water pump.

Detailed Description

As shown in figure 1, a dust filter, includes rack 1, install draught fan 2 on the rack, the air inlet end and the exhaust emission pipeline of draught fan 2 are linked together, the air-out end and the one end of inlet channel 3 of draught fan are linked together. And a spiral electric heating pipe 4 is fixedly installed on the inner peripheral wall of the air inlet channel 3, and the electric heating pipe 4 is electrically connected with an electric heater 5 installed on the rack 1. The other end of the air inlet channel 3 is fixedly arranged and communicated with the lower half part of a filter cartridge 6 on the rack 1, the bottom of the filter cartridge 6 is communicated with one end of a sewage discharge pipe 7, and the other end of the sewage discharge pipe 7 is communicated with a sewage pool.

The inside of cartridge filter 6 with the top of inlet channel 3's intercommunication position is fixed with one-level filter screen 8 and second grade filter screen 9 in proper order, one-level filter screen 8 with the periphery of second grade filter screen 9 with the internal perisporium fixed connection of cartridge filter 6. The filter cartridge 8 is arranged above the first-stage filter screen 8 and the second-stage filter screen 9, spray pipes 10 are arranged along the horizontal direction, and a plurality of spray heads 11 are uniformly arranged at the lower part of each spray pipe 10. The free end of each shower pipe 11 extends to the outside of the filter cylinder 6 and is communicated with one end of a water supply pipe 12, and the parts of each shower pipe 11 positioned outside the filter cylinder 6 are respectively provided with an electric valve 13. The water supply pipe 12 has a water pump 22 at the middle thereof, and the other end of the water supply pipe 12 is communicated with a clean water supply source.

The upper end of the filter cartridge 6 is communicated with an air outlet channel 14, and in this embodiment, an air-water separation device is arranged between the air outlet channel 14 and the filter cartridge 6.

The gas-water separation device comprises an outer cylinder body 15, wherein a gas inlet 16 and a gas outlet 17 are respectively arranged on two sides of the upper end of the outer cylinder body 15, the gas inlet 16 is communicated with the filter cylinder 6, and the gas outlet 17 is communicated with the gas outlet channel 14. An inner cylinder 18 is arranged inside the outer cylinder 15, the upper end of the inner cylinder 18 is inclined and is higher than one side close to the air outlet 17 at one side close to the air inlet 16, and a ring partition plate 19 is fixedly arranged between the periphery of the upper end of the inner cylinder 18 and the inner wall of the outer cylinder. The periphery wall of the inner barrel 18 is provided with a spiral drainage plate 20, and the lower end of the outer barrel is communicated with a drainage pipe 21.

The utility model discloses at the during operation, the waste gas that contains the dust enters into through draught fan and admission line in the cartridge filter to become the hot gas flow that has the uniform temperature after the electric heating pipe heating in the admission line, the hot gas flow enters into the cartridge filter and moves to the last direction, and successively through one-level filter screen and second grade filter screen, realizes interception and the filtration to the dust. Meanwhile, clean water is supplied to the two spray pipes of the water supply pipe, the spray heads below the two spray pipes spray clean water to the first-stage filter screen and the second-stage filter screen to flush dust accumulated on the two filter screens, on the other hand, the water-soluble harmful substances in the wastes can be adsorbed in the process of flushing and dripping, and sewage containing the dust and other harmful substances is discharged into a sewage tank through the sewage discharge pipe to be treated. The gas after being filtered can also contain certain water vapor and liquefied small water drops, the gas-water mixture enters an outer cylinder of the gas-water separation device, in the process of flowing along the spiral drainage plate, the water vapor and the small water drops are accumulated on the drainage plate after being liquefied and then fall off after reaching certain mass and are discharged through a drainage pipe, and the gas in the gas-water mixture can be discharged from a gas outlet and a gas outlet channel after sequentially passing through the drainage plate and the inner cylinder.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A dust filter is characterized in that: including the rack, be provided with the draught fan on the rack, the air-out end of draught fan is linked together with inlet channel's one end, the fixed spiral electric heating pipe that is provided with on inlet channel's the internal perisporium, electric heating pipe with set up in electric heater electric connection on the rack, inlet channel's the other end and fixed being provided with the lower half of cartridge filter on the rack are linked together, the bottom of cartridge filter is linked together with the one end of blow off pipe, the other end and the effluent water sump of blow off pipe are linked together, the inside of cartridge filter with inlet channel's the top at intercommunication position has set gradually one-level filter screen and second grade filter screen, the cartridge filter is in the one-level filter screen with the top of second grade filter screen all is provided with the shower along the horizontal direction, each the lower part of shower evenly is provided with a plurality of shower nozzles respectively, each the free end of shower extends to the And the middle part of the water supply pipe is provided with a water pump, the other end of the water supply pipe is communicated with a clean water supply source, and the upper end of the filter cartridge is communicated with the air outlet channel.

2. A dust filter as claimed in claim 1, wherein: and electrically operated valves are respectively arranged at the parts of the spray pipes, which are positioned outside the filter cartridges.

3. A dust filter as claimed in claim 1, wherein: and a gas-water separation device is arranged between the air outlet channel and the filter cartridge.

4. A dust filter as claimed in claim 3, wherein: the gas-water separation device comprises an outer barrel, wherein an air inlet and an air outlet are respectively formed in two sides of the upper end of the outer barrel, the air inlet is communicated with the filter cartridge, the air outlet is communicated with the air outlet channel, an inner barrel is arranged in the outer barrel, the upper end of the inner barrel is in an inclined plane shape and close to one side of the air inlet, which is higher than one side of the air outlet, a ring partition plate is fixedly arranged between the periphery of the upper end of the inner barrel and the inner wall of the outer barrel, a spiral drainage plate is arranged on the peripheral wall of the inner barrel, and the lower end of the outer barrel is communicated with a drain pipe.