CN113101759A

CN113101759A - Explosion-proof device for industrial dust removal

Info

Publication number: CN113101759A
Application number: CN202110370577.1A
Authority: CN
Inventors: 陈龙彬; 吴占恒; 邹九九; 施杨杨; 王景辉
Original assignee: Longyan Huifeng Industry And Trade Co ltd
Current assignee: Longyan Huifeng Industry And Trade Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-07-13
Anticipated expiration: 2041-04-07
Also published as: CN113101759B

Abstract

An explosion-proof device for industrial dust removal comprises a box body and a filter cartridge standing on the box body, wherein the bottom of the filter cartridge is provided with an ash falling port, the top of the filter cartridge is provided with a smoke outlet, the side of the filter cartridge is provided with a smoke inlet, and the top of the filter cartridge is connected with a cloth bag; a transverse clapboard is arranged in the box body to divide the box body into an upper cavity and an ash falling cavity, an ash falling port at the bottom of the filter cartridge is communicated with the ash falling cavity, and a smoke outlet arranged on the box body is connected to a smoke inlet; the epicoele is provided with perpendicular baffle, erects the inner space that the baffle encloses and extinguishes the chamber for the spark, erects then to form explosion-proof chamber between baffle and the box, and the explosion-proof intracavity is filled by thermal-insulated soft material, is provided with the exhaust hole on the box. When the explosion-proof device explodes, the expanded gas pushes the vertical partition plate to move and press the transverse partition plate to occupy the space of the explosion-proof cavity and the ash falling cavity, the energy is reduced due to the expansion of the volume, and meanwhile, a large amount of energy is absorbed by the spring and the aluminum silicate heat-insulating cotton, so that the device cannot be disassembled even if the explosion occurs, and the casualty situation is avoided.

Description

Explosion-proof device for industrial dust removal

Technical Field

The invention relates to the field of dust removal and explosion prevention, in particular to an explosion-proof device for industrial dust removal.

Background

The dust-removing equipment is a dry dust-filtering device, it is applicable to catching fine, dry and non-fibrous dust, the filter bag is made up by using woven cloth bag or non-woven felt, and utilizes the filtering action of fibre fabric to filter dust-containing gas, after the dust-containing gas is fed into the bag-type dust collector, the dust with large granules and large specific gravity can be settled down due to the action of gravity, and fallen into dust hopper, and when the gas containing fine dust is passed through the filter material, the dust can be retained so as to make the gas be purified, and the bag-type dust collector is low in cost, can be repaired, cleaned and changed, and can be extensively used in industrial production.

In industrial production, particularly when coal is used as a main energy material for industrial production, the temperature of a large amount of smoke dust contained in smoke is usually over several hundred ℃, heat is easy to accumulate and exceeds the burning point of a cloth bag, the cloth bag is caused to spontaneously combust, and potential safety hazards exist; moreover, sparks are often mixed in the smoke dust, and the existence of the sparks is easy to ignite the cloth bag, so that the hidden danger is great, and thus, the prior art often does not adopt a bag type dust collector or adopts a complicated flue to cool and extinguish the sparks, and the miniaturization cannot be realized; furthermore, in some places with high danger levels, such as flour production places, the discharged smoke contains inflammable dust, although the fire danger category of the raw material wheat is classified as class C, the raw material wheat is processed into flour, the fire danger category is classified as class B after being mixed with air due to the characteristics of inflammability and easy suspension, explosion is very easy to occur after encountering open fire, and the explosion waves follow one another, so that the harm is very great, and the technical problem of how to filter and prevent smoke dust under miniaturization is urgently solved.

Disclosure of Invention

The present invention is made in view of the problems raised by the background art, and the present invention will be further described below.

An explosion-proof device for industrial dust removal comprises a box body and a filter cartridge standing on the box body, wherein the bottom of the filter cartridge is provided with an ash falling port, the top of the filter cartridge is provided with a smoke outlet, the side of the filter cartridge is provided with a smoke inlet, the top of the filter cartridge is connected with a cloth bag, and the cloth bag separates the smoke outlet and the smoke inlet into different spaces; a transverse partition plate is arranged in the box body and divides the box body into an upper cavity positioned above and an ash falling cavity positioned below, an ash falling port at the bottom of the filter cylinder is communicated to the ash falling cavity through an ash falling channel, and a smoke outlet is arranged on the box body and is connected to a smoke inlet through a smoke discharge channel; the epicoele is provided with perpendicular baffle, erects the inner space that the baffle encloses and extinguishes the chamber for the mars, erects then to form the explosion-proof chamber between baffle and the box, and the explosion-proof intracavity is filled by thermal-insulated soft material, is provided with the exhaust hole on the box, and it is external with explosion-proof chamber intercommunication through the exhaust hole, and the side of box is provided with into the tobacco pipe, advances the tobacco pipe intercommunication to the mars and extinguishes the chamber.

Preferably, the transverse partition plate and the outer edge of the top in the box body are provided with step surfaces, and the vertical partition plate is abutted against the step surfaces when being arranged.

Optionally, the diaphragm is made of a fireproof treated wood board.

Optionally, the transverse partition plate and the vertical partition plate are both made of metal plates.

Preferably, the diaphragm plate is composed of an outer plate and an inner plate, the outer plate is made of metal, the inner plate is made of fireproof processed wood, the step surface is arranged on the outer plate, an inner step surface is arranged on the inner side of the outer plate, a boss part is arranged on the outer side of the inner plate, and the boss part is matched with the step surface to enable the inner plate to be borne on the outer plate; when explosion happens, the vertical partition plate can slide on the outer plate to quickly compress the aluminum silicate heat-insulating cotton, and meanwhile, the inner plate is broken under the action of shock waves, so that shock wave energy can be transmitted into the ash falling cavity, namely the explosion-proof cavity and the ash falling cavity share the energy of the shock waves.

Preferably, the vertical partition board is provided with a mounting groove opposite to the inner wall of the box body, and a spring is arranged in the mounting groove; after the explosion happens, the vertical partition board is pushed by the shock wave to compress the spring and the aluminum silicate heat-insulating cotton, so that the shock wave has a strong weakening effect on the explosion shock wave, particularly on the explosion of dust.

Preferably, a water cooling pipe is arranged outside the exhaust flue, the water cooling pipe cools the exhaust flue, the temperature of the flue gas is reduced, meanwhile, when the heat is lost, the residual heat of the sparks is quickly lost and extinguished, and the flue gas entering the cloth bag does not contain the sparks and the temperature of the flue gas is at a safety value.

Preferably, a bent pipeline is connected between the smoke exhaust channel and the smoke inlet, so that the smoke can be guided to the filter cylinder smoothly under the guiding action of the bent pipe, smoke dust is adsorbed on the inner wall of the bent pipeline, and sparks collide with dust and are adsorbed to extinguish.

Preferably, a screw rod is transversely arranged in the ash falling cavity, one end of the screw rod is connected to the inner wall of the box body, the other end of the screw rod penetrates through the box body and is connected with a hand wheel, a push plate is arranged on the screw rod, and an openable ash discharging door is further arranged on the box body; the hand wheel is rotated to drive the screw rod to rotate, so that the push plate is driven to move forward, accumulated dust is pushed to the dust discharging door, and the dust is discharged from the dust discharging door.

Preferably, the filter cartridge is supported by an independent steel frame, and the box body can be moved downwards to be separated from the contact with the filter cartridge; after the cleaning device works for a period of time, the smoke accumulated on the diaphragm can be cleaned.

Preferably, the box body is also provided with an observation window; the accumulation condition of dust in the dust falling cavity can be conveniently observed.

Has the advantages that: compared with the prior art, when the explosion-proof device explodes, the expanded gas pushes the vertical partition plate to move and press the transverse partition plate, so that the explosion-proof device occupies the space of the explosion-proof cavity and the ash falling cavity and can be discharged from the filter cartridge, the energy is reduced due to the expansion of the volume, and meanwhile, a large amount of energy is absorbed by the spring and the aluminum silicate heat-insulating cotton, so that the device cannot be disassembled even if the explosion occurs, and the casualty condition is avoided; meanwhile, the temperature of the flue gas can be reduced, sparks are extinguished, the possibility of explosion is reduced, and the spontaneous combustion of the cloth bag is avoided.

Drawings

FIG. 1: the invention has a structure schematic diagram;

FIG. 2: side view at a in fig. 1;

in the figure: the device comprises a box body 1, a smoke outlet 101, a filter cartridge 2, an ash falling port 201, a smoke outlet 202, a smoke inlet 203, a diaphragm plate 4, a step surface 401, an outer plate 402, an inner plate 403, an inner step surface 404, a boss part 405, an upper cavity 5, an ash falling cavity 6, an ash falling channel 7, a smoke outlet 8, a vertical partition plate 9, a spark extinguishing cavity 10, an explosion-proof cavity 11, a smoke inlet pipe 12, a water cooling pipe 13, a bent pipe 14, a screw rod 15, a hand wheel 16, a push plate 17, an ash discharging door 18, an observation window 19 and a spring 20.

Detailed Description

A specific embodiment of the present invention will be described in detail with reference to fig. 1-2.

The utility model provides an explosion-proof equipment for industrial dust removal, include box 1 and stand and strain a 2 on box 1, strain 2 bottoms of a section of thick bamboo and be ash falling port 201, the top is equipped with exhaust port 202, the side is provided with into mouth 203, the top of straining a 2 is connected with sack 3, sack 3 separates exhaust port 202, enter mouth 203 at different spaces, the flue gas gets into by entering mouth 203 and strains in a 2, the flue gas rises under the hot pressing, after sack 3 filters, discharge by mouth 202, and the smoke and dust that contains in the flue gas then falls under the dead weight after being filtered by sack 3, get into in the box 1 of below by ash falling port 201.

A transverse partition plate 4 is arranged in the box body 1, the transverse partition plate 4 divides the interior of the box body 1 into an upper cavity 5 positioned above and an ash falling cavity 6 positioned below, an ash falling port 201 at the bottom of the filter cartridge 2 is communicated to the ash falling cavity 6 through an ash falling channel 7, a smoke outlet 101 is arranged on the box body 1, the smoke outlet 101 is connected to a smoke inlet 203 through a smoke exhaust channel 8, and the upper cavity 5 is communicated with the filter cartridge 2; a vertical partition plate 9 is arranged in the upper cavity 5, the inner space surrounded by the vertical partition plate 9 is a spark extinguishing cavity 10, an explosion-proof cavity 11 is formed between the vertical partition plate 9 and the box body 1, the explosion-proof cavity 11 is filled with heat-insulating soft materials, such as fine aluminum silicate heat-insulating cotton, an exhaust hole is formed in one side of a non-operation surface of the box body 1, and the explosion-proof cavity 11 is communicated with the outside through the exhaust hole; a smoke inlet pipe 12 is arranged at the side of the box body 1, and the smoke inlet pipe 12 is communicated with the spark extinguishing cavity 10.

The smoke to be discharged enters the spark extinguishing cavity 10 from the smoke inlet pipe 12, rises under the hot pressing and is accumulated on the smoke inlet pipe 12 and communicated to the top of the spark extinguishing cavity 10, the sparks collide on the box body 1 and the ash falling channel 7 and are extinguished, then the smoke enters the filter cartridge 2 from the smoke channel 8 on the other side, the aluminum silicate heat-insulating cotton filled in the explosion-proof cavity 11 has the heat insulation effect, in addition, when the explosion occurs, the shock wave collides on the vertical partition plate 9 and then compresses the aluminum silicate heat-insulating cotton, the capacity of the aluminum silicate heat-insulating cotton for absorbing the shock wave is realized, meanwhile, the space where the explosion occurs is increased rapidly, and the explosion energy is reduced.

The explosion-proof cavity 11 is used for bearing shock waves, so that the vertical partition plate 9 can move on the transverse partition plate 4, specifically, the outer edges of the transverse partition plate 4 and the inner top of the box body 1 are provided with step surfaces 401, and the vertical partition plate 9 is abutted against the step surfaces 401 under the thrust of aluminum silicate heat-insulating cotton when being arranged.

In one embodiment, the diaphragm 4 is made of a fireproof treated wood board, or a layer of incombustible sand is laid on the wood board, so that falling sparks cannot ignite the wood board; meanwhile, when the spark extinguishing cavity 10 is filled with smoke, certain pressure exists, and the adopted wood board has certain toughness, so that the diaphragm plate 4 can be smoothly broken to release energy when explosion happens and cannot be broken by the pressure during normal work. In this embodiment, the explosion-proof chamber 11 and the ash falling chamber 6 share the shock wave.

In another embodiment, the diaphragm 4 and the vertical diaphragm 9 are made of metal material such as steel plate, in which case the diaphragm 4 has sufficient strength to bear the pressure in the spark extinguishing chamber 10, and the explosion shock wave is borne by the explosion-proof chamber 11.

In this embodiment, as a preferred embodiment, the diaphragm 4 is composed of an outer plate 402 and an inner plate 403, the outer plate 402 is made of metal, the inner plate 403 is made of fireproof wood, the step surface 401 is provided on the outer plate 402, an inner step surface 404 is provided on the inner side of the outer plate 402, a boss portion 405 is provided on the outer side of the inner plate 403, and the boss portion 405 is engaged with the step surface 404 so that the inner plate 403 is supported on the outer plate 402. In this embodiment, when an explosion occurs, the vertical partition 9 can slide on the outer plate 402 to compress the aluminum silicate thermal insulation cotton rapidly, and at the same time, the inner plate 403 is broken under the action of the shock wave, so that the shock wave energy can be transmitted into the ash falling cavity 6, that is, the explosion-proof cavity 11 and the ash falling cavity 6 share the energy of the shock wave, which has the advantages of the above two embodiments.

Based on existence of explosion-proof chamber 11, the heat of flue gas can't be outwards transmitted smoothly, the danger of operating personnel scald has also been avoided, but the temperature of flue gas is high, can't reduce the risk of 3 spontaneous combustion of sack, this embodiment is provided with water-cooled tube 13 or air-cooled pipe outside discharge flue 8, water-cooled tube 13 is handled the 8 cooling of discharge flue, reduce the temperature of flue gas, simultaneously in the heat loss, remaining mars heat runs off fast and extinguishes, guarantee that the flue gas that advances sack 3 does not contain mars and the temperature is in the safe value.

Still further, the bent pipe 14 is connected between the exhaust flue 8 and the smoke inlet 203, so that the smoke can be guided to the filter cartridge 2 smoothly under the guiding action of the bent pipe, smoke dust is adsorbed on the inner wall of the bent pipe 14, and sparks collide with dust and are adsorbed to extinguish.

In the work, the smoke dust falls into the dust falling cavity 6 gradually and is collected, in order to conveniently remove the accumulated smoke dust, a screw rod 15 is transversely arranged in the dust falling cavity 6, one end of the screw rod 15 is connected to the inner wall of the box body 1, the other end of the screw rod 15 penetrates through the box body 1 and is connected with a hand wheel 16, a push plate 17 is arranged on the screw rod 15, and an openable dust discharging door 18 is further arranged on the box body 1; the hand wheel 16 is rotated to drive the screw rod to rotate, and the push plate 17 is driven to move forward, so that accumulated dust is pushed to the dust discharging door 18 and is discharged from the dust discharging door 18.

It should be noted that, the flue gas is in the upper chamber, and the smoke and dust that contains also can gather on diaphragm 4, need clear up after working a period, and this embodiment moves box 1 downwards for box 1 breaks away from straining a section of thick bamboo 2, sweep the dust to falling in the ash cavity 6 by the opening at box 1 top can, in reality, strain a section of thick bamboo 2 and often all be bulky structure, adopt independent steelframe to support, and box 1 then is convenient for dismantle and break away from.

In order to observe the accumulation condition of dust in the dust falling cavity 6 conveniently, the box body 1 is also provided with an observation window 19.

The shock wave absorbing device can further improve the absorbing effect on the shock wave capacity by adopting the spring 20, the mounting grooves 901 are formed in the inner walls of the vertical partition plate 9 and the box body 1, two ends of the spring 20 are placed in the mounting grooves 901, and after explosion occurs, the vertical partition plate 9 is pushed by the shock wave to compress the spring 20 and the aluminum silicate heat-insulating cotton, so that the shock wave absorbing device has a strong weakening effect on the explosion shock wave, particularly on the explosion of dust.

When the explosion-proof device explodes, the expanded gas pushes the vertical partition plate 9 to move and press the transverse partition plate 4, so that the space of the explosion-proof cavity 11 and the ash falling cavity 6 is occupied, the gas can be discharged from the filter cartridge 2, the energy is reduced due to the expansion of the volume, and meanwhile, the spring 20 and the heat-insulating aluminum silicate cotton absorb a large amount of energy, so that the device cannot be disassembled even if the explosion occurs, and the casualties are avoided; meanwhile, the temperature of the flue gas can be reduced, sparks are extinguished, the possibility of explosion is reduced, and the spontaneous combustion of the cloth bag is avoided.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An explosion-proof device for industrial dust removal comprises a box body (1) and a filter cartridge (2) standing on the box body (1), wherein the bottom of the filter cartridge (2) is provided with an ash falling port (201), the top of the filter cartridge is provided with a smoke outlet (202), the side of the filter cartridge is provided with a smoke inlet (203), the top of the filter cartridge (2) is connected with a cloth bag (3), and the smoke outlet (202) and the smoke inlet (203) are separated into different spaces by the cloth bag (3); the method is characterized in that:

a transverse partition plate (4) is arranged in the box body (1), the transverse partition plate (4) divides the interior of the box body (1) into an upper cavity (5) located above and an ash falling cavity (6) located below, an ash falling port (201) at the bottom of the filter cartridge (2) is communicated to the ash falling cavity (6) through an ash falling channel (7), a smoke outlet (101) is formed in the box body (1), and the smoke outlet (101) is connected to a smoke inlet (203) through a smoke discharge channel (8);

be provided with in epicoele (5) and erect baffle (9), erect the inner space that baffle (9) encloses and extinguish chamber (10) for the mars, erect and then form explosion-proof chamber (11) between baffle (9) and box (1), fill by thermal-insulated soft material in explosion-proof chamber (11), be provided with the exhaust hole on box (1), through the exhaust hole with explosion-proof chamber (11) intercommunication external, the side of box (1) is provided with into tobacco pipe (12), it communicates to mars and extinguishes chamber (10) to advance tobacco pipe (12).

2. The explosion proof device of claim 1, wherein:

the inner walls of the vertical partition plates (9) and the box body (1) are oppositely provided with mounting grooves (901), and springs (20) are arranged in the mounting grooves (901).

3. The explosion proof device of claim 2, wherein:

the outer edges of the transverse partition plate (4) and the inner top of the box body (1) are provided with step surfaces (401), and the vertical partition plate (9) is abutted against the step surfaces (401) when being arranged.

4. The explosion proof device of claim 3, wherein:

the diaphragm plate is made of a fireproof treated wood plate; or the transverse partition plate and the vertical partition plate are both made of metal plates.

5. The explosion proof device of claim 3, wherein:

the diaphragm plate (4) is composed of an outer plate (402) and an inner plate (403), the outer plate (402) is made of metal, the inner plate (403) is made of fireproof wood, the step surface (401) is arranged on the outer plate (402), an inner step surface (404) is arranged on the inner side of the outer plate (402), a boss part (405) is arranged on the outer side of the inner plate (403), and the boss part (405) is matched with the step surface (404) to enable the inner plate (403) to be borne on the outer plate (402).

6. The explosion proof device of claim 5, wherein:

a water cooling pipe (13) is arranged outside the discharge flue (8).

7. The explosion proof device of claim 5, wherein:

a bent pipeline (14) is connected between the discharge flue (8) and the smoke inlet (203).

8. The explosion proof device of claim 5, wherein:

the ash falling cavity (6) is internally provided with a screw rod (15) transversely, one end of the screw rod (15) is connected to the inner wall of the box body (1), the other end of the screw rod (15) penetrates through the box body (1) and then is connected with a hand wheel (16), a push plate (17) is arranged on the screw rod (15), and the box body (1) is also provided with an openable ash discharging door (18).

9. The explosion proof device of claim 5, wherein:

the filter cartridge (2) is supported by an independent steel frame, and the box body (1) can be moved downwards to be separated from the contact with the filter cartridge (2).

10. The explosion proof device of claim 5, wherein:

the box body (1) is also provided with an observation window (19).