CN113769496A - Ash cleaning device and method for accumulated ash in filter bag of bag type dust collector - Google Patents
Ash cleaning device and method for accumulated ash in filter bag of bag type dust collector Download PDFInfo
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- CN113769496A CN113769496A CN202111247860.1A CN202111247860A CN113769496A CN 113769496 A CN113769496 A CN 113769496A CN 202111247860 A CN202111247860 A CN 202111247860A CN 113769496 A CN113769496 A CN 113769496A
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- 239000000428 dust Substances 0.000 title claims abstract description 169
- 238000004140 cleaning Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008021 deposition Effects 0.000 claims description 33
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000004534 cecum Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- 238000010248 power generation Methods 0.000 description 1
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- 239000000243 solution Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0233—Other waste gases from cement factories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
- B01D2258/0291—Flue gases from waste incineration plants
Abstract
The invention discloses a dust cleaning device and a dust cleaning method for accumulated dust in a filter bag of a bag type dust collector, wherein the dust cleaning device comprises an ejector, the ejector is connected with an air inlet pipe, an air outlet pipe and an air suction pipe, one end of the air inlet pipe is a conical pipe and is inserted into the ejector, the lower end of the air suction pipe is connected with a hose, the lower end of the hose is connected with a hard pipe air suction head, and the hose is detachably connected with the air suction pipe and the hard pipe air suction head; the invention utilizes the working principle of the ejector, has simple dust cleaning device, can be used only by connecting a pulse dust cleaning air source of the bag dust collector, and has the advantages of simple structure, convenient operation and use, thorough dust cleaning and no damage to the filter bag.
Description
Technical Field
The invention relates to the field of ash removal equipment of belt type dust collectors, in particular to an ash removal device and an ash removal method for accumulated ash in filter bags of a bag type dust collector.
Background
With the improvement of the atmospheric environmental protection standard and the development of the technology of the bag type dust collector, particularly the continuous innovation and progress of the core component filter material of the bag type dust collector, the bag type dust collector is more and more widely applied to dust collection systems of various industries and plays an important role in the application of industrial fields such as coal-fired power plants, garbage power plants, cement and the like.
Present bag collector is becoming bigger and bigger more, and filter bag quantity is from thousands to tens of thousands, to external filtration formula filter bag, no matter which kind of deashing mode of selection, and the dust remover operation is after a period, and the problem of deposition can all appear in the bottom of dust removal sack, and when having the filter bag damage whenever, the problem of deposition also can appear in filter bag all around. The existing method for removing the accumulated dust is to open a cover at the top of a bag chamber, take out each cage and a dust removal cloth bag, and pour out the accumulated dust of the filter bags one by one to remove the dust. The mode has the advantages of large workload, long ash removal time and high labor intensity.
Chinese utility model with prior art application number CN200520122193.4 discloses a jetting ash removal device of pulse bag type dust collector specially does benefit to 2006, 12, 13, including jetting tuber pipe, efflux pipe, induced injection pipe and filter bag, the efflux pipe is arranged on the jetting tuber pipe, is located the top of filter bag, arranges a plurality of induced injection pipes on the efflux pipe.
For example, the chinese utility model with the application number of CN201921184013.3 in the prior art, which is exclusively used in 2020, 06, 09, discloses an ash removal device of a negative pressure reverse suction bag-type dust remover for a high-carbon chromite thermoelectric furnace for energy-saving and low-power consumption coal source power generation, which mainly comprises a bag-type dust remover, wherein the bag-type dust remover comprises a reverse conical ash bucket at the lower part, a cylindrical bag chamber at the middle part and a clean room at the upper part; a plurality of filter bags are arranged in the cloth bag chamber; an air inlet pipe is arranged at the lower part of the side wall of the cloth bag chamber, a reverse suction pipe is arranged at the lower part of the opposite side wall, an air inlet valve is arranged on the air inlet pipe, and a reverse suction valve is arranged on the reverse suction pipe; an air outlet pipe is arranged on the side wall of the cleaning chamber, and an air outlet valve is arranged on the air outlet pipe; differential pressure transmitters are arranged in the bag room and the clean room; and the air inlet valve, the reverse air suction valve, the air outlet valve and the differential pressure transmitter are all connected with a control system.
The existing filter bag dust cleaning device has the defects that the existing filter bag dust cleaning device only cleans hanging dust on the inner wall of a filter bag, and a product and a technology for cleaning accumulated dust at the bottom of the damaged filter bag are not available.
Disclosure of Invention
The invention aims to provide a dust cleaning device and a dust cleaning method for accumulated dust in a filter bag of a bag type dust collector, aiming at the problems in the prior art. The operating principle of the ejector is utilized, the dust cleaning device is simple, the dust cleaning device can be used only by connecting the pulse dust cleaning air source of the bag dust collector, and the dust cleaning device has the advantages of simple structure, convenience in operation and use, thorough dust cleaning and no damage to the filter bag.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an ash removal device of deposition in filter bag, includes the ejector, the ejector is connected intake pipe, outlet duct and breathing pipe, the one end of intake pipe is the taper pipe and inserts the inside of ejector, the lower extreme coupling hose of breathing pipe, the hard tube suction head is connected to the lower extreme of hose, the hose with breathing pipe and hard tube suction head are all can dismantle the connection.
Through setting up the ejector, the high-pressure draught of the outside air supply of introduction, high-pressure draught gets into from the intake pipe of ejector at a high speed, discharges fast from the outlet duct of ejector to form the negative pressure in the breathing pipe one end of ejector, breathing pipe coupling hose and hard tube suction head, through the gradual deposition in the absorption filter bag of hard tube suction head.
This wherein, through setting up the hose, when hanging down the hard tube suction head and put into the filter bag that has the deposition, through observing that the hose is in the not tensioning state of microbending, can judge whether the lower extreme of hard tube suction head contacts the deposition layer, convenient quick, easy to operate has solved among the prior art pipeline and has set up overlength or too short problem easily.
The hose, the air suction pipe and the hard pipe air suction head are detachably connected, so that hoses with different lengths can be replaced to adapt to bag type dust collectors with filter bags of different lengths.
Furthermore, the air suction pipe is a bent pipe, the upper end of the air suction pipe is obliquely connected with the ejector, and the lower end of the air suction pipe is arranged in the vertical direction. Through breathing pipe and ejector inclined connection, make the dust air current in the breathing pipe more easily be brought into the ejector and discharge, through establishing the breathing pipe into vertical direction, make things convenient for inside the breathing pipe is gone into the filter bag down.
Furthermore, the lower end of the air suction pipe is connected with the upper end of the hose through threads, and the lower end of the hose is connected with the air suction head of the hard pipe through threads. The hose, the air suction pipe and the hard pipe air suction head are in threaded connection, so that the hoses with different lengths can be conveniently replaced.
Further, the upper end of the hard tube air suction head is provided with a threaded connection pipe, the side wall of the hard tube air suction head is provided with a plurality of bar-shaped openings in the vertical direction, the lower end of the hard tube air suction head is provided with an inner groove, and the inner groove surrounds the hard tube air suction head and is evenly arranged. Through setting up the inner groovy, when making hard tube suction head bottom contact deposition layer, avoid causing the jam, through setting up the bar opening, can form the torrent around the hard tube suction head, can increase on the one hand and inhale grey scope, on the other hand can avoid the dust to block up in the hard tube suction head.
The utility model provides a bag type dust collector, includes the dust remover body, the dust remover body is including the upper cover that can open, the inside of dust remover body is equipped with a plurality of filter bag side by side, the lower extreme of filter bag is the cecum, the upper end of filter bag is connected the card, the card with the inner wall fixed mounting of dust remover body and with the dust remover body separates for air-purifying chamber and baghouse, the outside of dust remover body be equipped with the air outlet channel of air-purifying chamber intercommunication and with the inlet channel of baghouse intercommunication.
The bag type dust collector works in the way that airflow with ash flows into a bag chamber from an air inlet channel, the outer wall of a filter bag filters the airflow, and the filtered clean airflow flows into a gas purifying chamber from the interior of the filter bag and flows out from an air outlet channel; when one of the filter bags is damaged, the airflow with dust can directly flow out of the interior of the filter bag, so that the dust removal effect of the bag type dust remover is influenced, and dust is accumulated in the surrounding filter bags, which causes inconvenience.
Further, the air outlet pipe comprises a bent pipe part and a vertical pipe part, and the lower end of the vertical pipe part penetrates through the flower plate and is suspended in the bag chamber.
Through taking out a filter bag that does not have the deposition of bag collector, leave the card hole that has taken out the filter bag on the card, put ash removal device's outlet duct into the card hole department that has taken out the filter bag on the card and transfer, make the lower extreme of outlet duct suspend in the baghouse, the benefit lies in, need not to open extra trompil again on the card to make the deposition in the filter bag discharge into the baghouse again, make things convenient for the next step of dust to filter the discharge.
Furthermore, the outer side of the dust remover body is connected with an external pipeline, and the external pipeline is connected with a dust removing fan. The dust introduced into the bag chamber is purified and discharged by starting the dust removal fan.
Furthermore, one end of the air outlet pipe extends out of the dust remover body and is connected with an external pipeline, the external pipeline is connected with an external dust remover, and the external dust remover is connected with a dust removing fan.
A method for cleaning ash accumulated in a filter bag comprises the following steps:
s1: opening the upper cover of the dust remover body, and temporarily fixing the ash removal device in an air purifying chamber of the bag type dust remover:
s2: vertically placing a hose of the ash removal device and a hard pipe air suction head into a filter bag with deposited ash downwards until the lower end of the hard pipe air suction head contacts an ash deposition layer, and at the moment, the hose is in a slightly bent and non-tensioned state;
s3: taking out a filter bag without accumulated dust of the bag type dust collector, reserving a pattern plate hole with the filter bag taken out on a pattern plate, placing an air outlet pipe of the dust cleaning device at the pattern plate hole with the filter bag taken out on the pattern plate and placing the air outlet pipe downwards, and enabling the lower end of the air outlet pipe to be suspended in a bag chamber;
s4: and connecting an air inlet pipe of the ash removal device to an external ash removal air source pipeline, enabling high-pressure air to enter the ejector, and simultaneously opening a dust removal fan to purify and lead out dust in the bag chamber.
By the method, the problem of quickly cleaning the dust accumulated at the bottom of the damaged filter bag is solved; whether the lower end of the hard tube suction head contacts an ash deposition layer or not can be judged by observing that the hose is in a slightly bent and non-tensioned state, the operation is convenient and quick, and the problem that the pipeline is easily overlong or overlong in the prior art is solved; through taking out a filter bag that does not have the deposition of bag collector, leave the flower plate hole of taking out the filter bag on the flower plate, need not open extra trompil on the flower plate again to make the deposition in the filter bag discharge the baghouse again, make things convenient for the next step purification of dust to discharge, convenient operation saves the cost.
A method for cleaning ash accumulated in a filter bag comprises the following steps:
s01: opening the upper cover of the dust remover body, and temporarily fixing the ash removal device in an air purifying chamber of the bag type dust remover:
s02: vertically placing a hose of the ash removal device and a hard pipe air suction head into a filter bag with deposited ash downwards until the lower end of the hard pipe air suction head contacts an ash deposition layer, and at the moment, the hose is in a slightly bent and non-tensioned state;
s03: and connecting the air inlet pipe of the ash removal device to an external ash removal air source pipeline, connecting the air outlet pipe of the ash removal device to an external dust remover, connecting the dust remover to a dust removal fan, and starting the dust removal fan.
Compared with the prior art, the invention has the beneficial effects that:
1. the high-pressure airflow of an external air source is introduced by arranging the ejector, the high-pressure airflow enters from the air inlet pipe of the ejector at a high speed and is quickly discharged from the air outlet pipe of the ejector, so that negative pressure is formed at one end of the air suction pipe of the ejector, the air suction pipe is connected with the hose and the hard pipe air suction head, and accumulated dust in the filter bag is gradually sucked through the hard pipe air suction head; the operating principle of the ejector is utilized, the dust cleaning device is simple, the dust cleaning device can be used only by connecting the pulse dust cleaning air source of the bag dust collector, and the dust cleaning device has the advantages of simple structure, convenience in operation and use, thorough dust cleaning and no damage to the filter bag.
2. By arranging the hose, when the hard tube air suction head is vertically placed into the filter bag with dust deposition downwards, whether the lower end of the hard tube air suction head contacts the dust deposition layer or not can be judged by observing that the hose is in a slightly bent and non-tensioned state, the operation is convenient and quick, and the problem that the pipeline is easy to set too long or too short in the prior art is solved;
3. the hose, the air suction pipe and the hard pipe air suction head are detachably connected, so that hoses with different lengths can be replaced to adapt to bag type dust collectors with filter bags with different lengths;
4. the inner grooves are arranged, so that when the bottom of the hard tube suction head contacts with an ash deposition layer, blockage is avoided, and by arranging the strip-shaped openings, turbulence can be formed around the hard tube suction head, so that the ash suction range can be increased, and dust can be prevented from being blocked in the hard tube suction head;
5. through taking out a filter bag that does not have the deposition of bag collector, leave the flower plate hole of taking out the filter bag on the flower plate, need not open extra trompil on the flower plate again to make the deposition in the filter bag discharge the baghouse again, make things convenient for the next step purification of dust to discharge, convenient operation saves the cost.
Drawings
FIG. 1 is a schematic structural view of an ash removal device for ash accumulated in a filter bag according to the present invention;
FIG. 2 is a schematic view of a hard tube suction head according to the present invention;
FIG. 3 is a schematic structural view of a bag collector according to example 3 of the present invention;
FIG. 4 is a schematic structural view of a bag collector according to embodiment 4 of the present invention;
in the figure: 1. an ejector; 2. an air inlet pipe; 3. an air outlet pipe; 4. an air intake duct; 5. a taper pipe; 6. a hose; 7. a rigid tube aspirator tip; 8. a filter bag; 9. a threaded connection pipe; 10. a strip-shaped opening; 11. an inner groove; 12. a dust collector body; 13. an upper cover; 14. a pattern plate; 15. an air outlet channel; 16. an air intake passage; 17. connecting a pipeline externally; 18. a dust remover; 19. a dust removal fan.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "horizontal", "vertical", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
At bag collector's normal use in-process, only a small amount of deposition in the filter bag, after one of them filter bag is damaged, bottom can accumulate a large amount of dusts in the filter bag all around, it is extremely inconvenient that the filter bag takes out, and the raise dust can cause the injury to operating personnel's health when taking out, need clear up the deposition in the filter bag earlier only, current filter bag ash removal device generally only clears up to the ash of hanging of filter bag inner wall, the product technology of bottom deposition clearance after the filter bag is damaged has not yet been directed against, therefore, the technical problem that this application was solved is, how to clear up the bottom deposition after the filter bag is damaged fast.
Example 1
As shown in fig. 1, the ash removal device for ash accumulated in a filter bag comprises an injector 1, wherein the injector 1 is connected with an air inlet pipe 2, an air outlet pipe 3 and an air suction pipe 4, one end of the air inlet pipe 2 is a taper pipe 5 and is inserted into the injector 1, the lower end of the air suction pipe 4 is connected with a hose 6, the lower end of the hose 6 is connected with a hard pipe air suction head 7, and the hose 6 is detachably connected with the air suction pipe 4 and the hard pipe air suction head 7.
Through setting up ejector 1, the high pressure draught of the outside air supply of introduction, high pressure draught gets into from 2 high-speed intakes of the intake pipe of ejector 1, discharges fast from 3 outlet ducts of ejector 1 to 4 one end formation negative pressures at the breathing pipe of ejector 1, 4 coupling hose 6 of breathing pipe and hard tube suction head 7, through the gradual deposition in the absorption filter bag 8 of hard tube suction head 7.
This wherein, through setting up the hose 6, when hanging down hard tube suction head 7 and put into the filter bag 8 that has the deposition, through observing that hose 6 is in the not tensioning state of microbending, can judge whether the lower extreme of hard tube suction head 7 contacts the deposition layer, convenient quick, easy to operate has solved among the prior art pipeline and has set up overlength or too short problem easily.
The hose 6, the air suction pipe 4 and the hard pipe air suction head 7 are detachably connected, so that the hose 6 with different lengths can be replaced to adapt to bag type dust collectors with filter bags with different lengths.
Further, the air suction pipe 4 is a bent pipe, the upper end of the air suction pipe 4 is obliquely connected with the ejector 1, and the lower end of the air suction pipe 4 is arranged in the vertical direction. Through breathing pipe 4 and ejector 1 slope connection, make the dust air current in breathing pipe 4 more easily be brought into ejector 1 and discharge, through establishing breathing pipe 4 into vertical direction, make things convenient for breathing pipe 4 to go into under to filter bag 8 inside.
Further, the lower end of the air suction pipe 4 is connected with the upper end of the hose 6 through threads, and the lower end of the hose 6 is connected with the hard pipe air suction head 7 through threads. The hose 6, the air suction pipe 4 and the hard pipe air suction head 7 are in threaded connection, so that the hose 6 with different lengths can be replaced conveniently.
Further, as shown in fig. 2, a threaded connection pipe 9 is arranged at the upper end of the hard tube suction head 7, a plurality of strip-shaped openings 10 in the vertical direction are arranged on the side wall of the hard tube suction head 7, an inner groove 11 is arranged at the lower end of the hard tube suction head 7, and the inner groove 11 surrounds the hard tube suction head 7 and is uniformly arranged. Through setting up inner groovy 11, when making 7 bottom contact deposition ash layers of hard tube aspirator tip, avoid causing the jam, through setting up bar opening 10, can form the torrent around hard tube aspirator tip 7, can increase on the one hand and inhale grey scope, on the other hand can avoid the dust to block up in hard tube aspirator tip 7.
Example 2
As shown in fig. 3, a bag type dust collector comprises a dust collector body 12, wherein the dust collector body 12 comprises an openable upper cover 13, a plurality of filter bags 8 are arranged in parallel in the dust collector body 12, the lower ends of the filter bags 8 are blind ends, the upper ends of the filter bags 8 are connected with a flower plate 14, the flower plate 14 is fixedly mounted on the inner wall of the dust collector body 12 and divides the dust collector body 12 into a gas purifying chamber and a bag chamber, and an air outlet channel 15 communicated with the gas purifying chamber and an air inlet channel 16 communicated with the bag chamber are arranged on the outer side of the dust collector body 12.
The working process of the bag type dust collector is that the airflow with ash flows into the bag chamber from the air inlet channel 16, the outer wall of the filter bag 8 filters the airflow, and the filtered clean airflow flows into the air purifying chamber from the interior of the filter bag 8 and flows out from the air outlet channel 15; when one of the filter bags 8 is damaged, the dust-carrying airflow is not purified and dust flows into the other filter bags 8 around the damaged filter bag 8, which affects the dust removal effect of the bag filter and causes inconvenience due to dust accumulation in the surrounding filter bags 8.
Further, the outlet pipe 3 includes an elbow pipe portion and an upright pipe portion, and a lower end of the upright pipe portion passes through the faceplate 14 and is suspended in the pocket.
The dust removing device has the advantages that the dust removing device does not need to be additionally provided with the holes on the flower plate 14, the dust in the filter bag 8 is discharged into the bag chamber again, and the dust is convenient to purify and discharge in the next step.
Further, an external pipeline 17 communicated with the bag chamber is arranged on the outer side of the dust remover body, and the external pipeline 17 is connected with a dust removing fan 19. The dust introduced into the bag house is purified by starting the dust removing fan 19 and discharged.
Further, as shown in fig. 4, one end of the outlet pipe 3 extends out of the dust remover body 12 and is connected with an external pipeline 17, the external pipeline 17 is connected with an external dust remover 18, and the external dust remover 18 is connected with a dust removing fan 19.
Example 3
As shown in fig. 3, a method for cleaning ash accumulated in a filter bag comprises the following steps:
s1: opening the upper cover 13 of the dust remover body 12, and temporarily fixing the dust removing device in the air purifying chamber of the bag type dust remover:
s2: vertically placing a hose 6 and a hard pipe suction head 7 of the ash removal device into a filter bag 8 with deposited ash downwards until the lower end of the hard pipe suction head 7 contacts an ash deposition layer, and at the moment, the hose 6 is in a slightly bent and non-tensioned state;
s3: taking out a filter bag 8 without dust accumulation of the bag type dust collector, reserving a pattern plate hole for taking out the filter bag 8 on the pattern plate 14, placing an air outlet pipe 3 of the dust cleaning device at the pattern plate hole for taking out the filter bag 8 on the pattern plate 14 and putting down, and suspending the lower end of the air outlet pipe 3 in a bag chamber;
s4: and (3) connecting the air inlet pipe 2 of the ash removal device to an external ash removal air source pipeline, enabling high-pressure air to enter the ejector 1, simultaneously opening the dust removal fan 19, and purifying and leading out dust in the bag chamber.
By the method, the problem of quickly cleaning the dust accumulated at the bottom of the damaged filter bag is solved; whether the lower end of the hard tube suction head 7 is in contact with an ash deposition layer or not can be judged by observing that the hose 6 is in a slightly bent and non-tensioned state, the operation is convenient and quick, and the problem that the pipeline is easily overlong or too short in the prior art is solved; by taking out the filter bag 8 without dust accumulation of the bag type dust collector, the flower plate hole for taking out the filter bag 8 is reserved on the flower plate 14, no extra hole needs to be formed on the flower plate 14, and the dust accumulation in the filter bag 8 is discharged into the bag chamber again, so that the dust can be conveniently purified and discharged in the next step, the operation is convenient, and the cost is saved.
Example 4
As shown in fig. 4, a method for cleaning ash accumulated in a filter bag comprises the following steps:
s01: the upper cover 13 of the dust remover body 12 is opened, and the ash cleaning device is temporarily and fixedly arranged in the air purifying chamber of the bag type dust remover:
s02: vertically placing a hose 6 and a hard pipe suction head 7 of the ash removal device into a filter bag 8 with deposited ash downwards until the lower end of the hard pipe suction head 7 contacts an ash deposition layer, and at the moment, the hose 6 is in a slightly bent and non-tensioned state;
s03: the air inlet pipe 2 of the ash cleaning device is connected with an external ash cleaning air source pipeline, the air outlet pipe 3 of the ash cleaning device is connected with an external dust remover 18, the dust remover 18 is connected with a dust removing fan 19, and the dust removing fan 19 is started.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an ash removal device of deposition in bag collector filter bag which characterized in that, includes the ejector, the ejector connects intake pipe, outlet duct and breathing pipe, the one end of intake pipe is the taper pipe and inserts the inside of ejector, the lower extreme coupling hose of breathing pipe, the hard tube suction head is connected to the lower extreme of hose, the hose with breathing pipe and hard tube suction head are all can dismantle the connection.
2. The ash removal device for removing ash accumulated in the filter bag of the bag type dust collector as claimed in claim 1, wherein the air suction pipe is a bent pipe, the upper end of the air suction pipe is obliquely connected with the ejector, and the lower end of the air suction pipe is vertically arranged.
3. The apparatus as claimed in claim 1, wherein the suction pipe is screwed to the upper end of the hose, and the hose is screwed to the suction head of the hard pipe.
4. The ash removal device for removing the ash accumulated in the filter bag of the bag type dust collector as claimed in claim 1, wherein the upper end of the hard tube suction head is provided with a threaded connection pipe, the side wall of the hard tube suction head is provided with a plurality of vertically-arranged strip-shaped openings, the lower end of the hard tube suction head is provided with inner grooves, and the inner grooves are uniformly arranged around the hard tube suction head.
5. The ash removal device for removing the accumulated ash in the filter bags of the bag type dust collector as claimed in any one of claims 1 to 4, which comprises a dust collector body, wherein a plurality of filter bags are arranged in parallel in the dust collector body, the upper ends of the filter bags are connected with a flower plate, and the flower plate divides the dust collector body into a gas purification chamber and a bag chamber.
6. The ash removal device for removing accumulated ash in a filter bag of a bag type dust collector as claimed in claim 5, wherein said air outlet pipe comprises an elbow pipe portion and an upright pipe portion, and the lower end of said upright pipe portion passes through said flower plate and is suspended in said bag chamber.
7. The ash removal device for removing the accumulated ash in the filter bag of the bag type dust collector as claimed in claim 6, wherein the external pipeline is connected to the outer side of the dust collector body and is connected to the dust removal fan.
8. The apparatus as claimed in claim 5, wherein one end of the air outlet pipe extends out of the main body and is connected to an external pipe, the external pipe is connected to an external dust collector, and the external dust collector is connected to a dust removing fan.
9. The method for cleaning ash accumulated in the filter bag of the bag type dust collector is characterized by comprising the following steps of:
s1: opening the upper cover of the dust collector body, and temporarily fixing the ash cleaning device according to any one of claims 1 to 4 in an air purifying chamber of the bag type dust collector;
s2: vertically placing a hose of the ash removal device and a hard pipe air suction head into a filter bag with deposited ash downwards until the lower end of the hard pipe air suction head contacts an ash deposition layer, and at the moment, the hose is in a slightly bent and non-tensioned state;
s3: taking out a filter bag without accumulated dust of the bag type dust collector, reserving a pattern plate hole with the filter bag taken out on a pattern plate, placing an air outlet pipe of the dust cleaning device at the pattern plate hole with the filter bag taken out on the pattern plate and placing the air outlet pipe downwards, and enabling the lower end of the air outlet pipe to be suspended in a bag chamber;
s4: and connecting an air inlet pipe of the ash removal device to an external ash removal air source pipeline, enabling high-pressure air to enter the ejector, and simultaneously opening a dust removal fan to lead out dust in the bag chamber.
10. The method for cleaning ash accumulated in the filter bag of the bag type dust collector is characterized by comprising the following steps of:
s01: opening the upper cover of the dust collector body, and temporarily fixing the ash cleaning device according to any one of claims 1 to 4 in an air purifying chamber of the bag type dust collector;
s02: vertically placing a hose of the ash removal device and a hard pipe air suction head into a filter bag with deposited ash downwards until the lower end of the hard pipe air suction head contacts an ash deposition layer, and at the moment, the hose is in a slightly bent and non-tensioned state;
s03: and connecting an air inlet pipe of the ash removal device to an external ash removal air source pipeline, connecting an air outlet pipe of the ash removal device to an external dust remover, connecting the external dust remover to a dust removal fan, and starting the dust removal fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111247860.1A CN113769496A (en) | 2021-10-26 | 2021-10-26 | Ash cleaning device and method for accumulated ash in filter bag of bag type dust collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111247860.1A CN113769496A (en) | 2021-10-26 | 2021-10-26 | Ash cleaning device and method for accumulated ash in filter bag of bag type dust collector |
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| CN113769496A true CN113769496A (en) | 2021-12-10 |
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