CN113731053A - Filter bag ash removal method of dust remover - Google Patents
Filter bag ash removal method of dust remover Download PDFInfo
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- CN113731053A CN113731053A CN202111161511.8A CN202111161511A CN113731053A CN 113731053 A CN113731053 A CN 113731053A CN 202111161511 A CN202111161511 A CN 202111161511A CN 113731053 A CN113731053 A CN 113731053A
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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
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
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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
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
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- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a method for cleaning dust in a filter bag of a dust remover, wherein the bag type dust remover comprises an installation shell, a dust removal system and a dust removal system; the filter bag dust cleaning method comprises the following steps: closing the air inlet pipeline, opening the air outlet pipeline, and storing compressed air into the air cannon; compressed air in the air cannon intermittently enters the air injection branch pipe, and the air injection nozzle is driven to rotate when the compressed air is injected out of the air injection nozzle, so that oscillating airflow is formed, and the inner surface of the filter bag is hit; the air pump is started to pump air inside the installation shell, so that dust is adsorbed on a filter screen of the ash removal pipeline, a sealing cover plate below the ash removal pipeline is opened, and the filter screen is cleaned; the filter bag dust cleaning method provided by the invention can be used for more rapidly and efficiently cleaning dust on the surface of the filter bag.
Description
Technical Field
The invention relates to the field of dust removal equipment, in particular to a method for cleaning dust of a filter bag of a dust remover.
Background
The bag type dust collector is a dry type dust filtering device. After the filter material is used for a period of time, due to the effects of screening, collision, detention, diffusion, static electricity and the like, a layer of dust is accumulated on the surface of the filter bag, the layer of dust is called as a primary layer, in the later movement process, the primary layer becomes a main filter layer of the filter material, and the filter material with larger meshes can obtain higher filtering efficiency by virtue of the action of the primary layer. Along with the accumulation of dust on the surface of the filter material, the efficiency and the resistance of the dust remover are correspondingly increased, and when the pressure difference between two sides of the filter material is large, some fine dust particles attached to the filter material are extruded, so that the efficiency of the dust remover is reduced. In addition, the air volume of the dust removal system is significantly reduced due to the excessively high resistance of the dust remover. Therefore, the dust is removed in time after the resistance of the dust remover reaches a certain value. The initial layer cannot be damaged during ash removal, so that the efficiency is prevented from being reduced.
The invention discloses an air bubble multipoint oscillation dust cleaning device for a bag-type dust remover, which is disclosed in Chinese invention patent with the application number of CN201010252893.0 in 2010, 11 and 24.A electrical control device of the air bubble is connected with an electromagnetic directional valve. The electromagnetic directional valve is arranged on the rear cover of the air cannon quick-opening valve and is communicated with the air cannon quick-opening valve through a channel. The electromagnetic directional valve and the air cannon quick-opening valve are respectively connected with the air cannon air storage cylinder through an internal channel. The compressed air inlet pipe is connected with the electromagnetic directional valve. The air cannon quick-opening valve is sequentially communicated with the horizontal pipe and the vertical pipe through a pipe through. The vertical pipe is provided with a conical impact air port. The vertical pipes are arranged among the cloth bags, and the length of the vertical pipes is the same as or slightly shorter than that of the cloth bags. The conical impact air ports are arranged at different length positions of the vertical pipes, a plurality of conical impact air ports are arranged at the length positions, and the conical impact air ports are transversely arranged facing the cloth bag. The problem of filter bag deashing has been solved to a certain extent to this patent scheme, nevertheless at filter bag fixed surface air nozzle, the impact deashing scope is limited, and the dust of raising is difficult for droing, stops probably will adsorb in the filter bag surface after the jet-propelled, leads to the deashing not thorough, and mounting structure is comparatively complicated moreover, and the adaptability is lower.
The invention of China with the application number of CN201010254755.6 in the prior art is specially favorable for 11/17/2010, and discloses a pneumatic dust cleaning device of a bag-type dust remover and a dust cleaning method thereof, wherein the pneumatic dust cleaning device comprises a mechanical part and a pneumatic part, wherein: the mechanical part comprises a filter bag, a pull rod and an air cylinder, wherein the filter bag is a component of the bag-type dust remover, and a piston rod of the air cylinder is connected with the filter bag through the pull rod. When the mechanical part is started by the pneumatic control part to enter the ash cleaning program, the ash cleaning method comprises the following steps: the piston rod of the cylinder moves upwards to drive the pull rod to move upwards, and the pull rod lifts the filter bag to enable the filter bag to be changed from an unfolded state to a wrinkled state; after the filter bag moves upwards to the limit position of the cylinder, the piston rod of the cylinder moves downwards to drive the pull rod to move downwards, and the pull rod pushes the filter bag downwards to enable the filter bag to be restored to the unfolded state. Although the scheme has thorough dust removal, the construction condition is harsh, and the technical difficulty exists when the scheme is applied to a bag-type dust remover.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a filter bag dust cleaning method of a dust collector, which can quickly and efficiently clean dust on the surface of a filter bag.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for cleaning dust in a filter bag of a dust remover comprises a mounting shell, a dust removing system and a dust cleaning system; the dust removal system comprises a filter bag, an air inlet pipeline and an air outlet pipeline, the dust removal system comprises an external air cannon, a dust removal pipeline and an air pump connected with the side wall of the dust removal pipeline, the air cannon is connected with a plurality of air injection branch pipes extending into the filter bag, and a plurality of air nozzles are arranged in the air injection branch pipes from top to bottom; the filter bag dust cleaning method comprises the following steps: closing the air inlet pipeline, opening the air outlet pipeline, and storing compressed air into the air cannon; compressed air in the air cannon intermittently enters the air injection branch pipe, and when the compressed air is injected out of the air injection nozzle, the air injection nozzle is driven to rotate to form oscillating airflow, so that the inner surface of the filter bag is struck, and dust adsorbed on the surface of the filter bag is raised; the air pump is started to exhaust air inside the installation shell, so that dust is adsorbed on the filter screen of the ash removal pipeline, the sealing cover plate below the ash removal pipeline is opened, and the filter screen is cleaned.
In the scheme, in the dust removal mode, airflow with dust entering from the air inlet pipeline is discharged from the air outlet pipeline after being cleaned by the filter bag, and the dust in the airflow is isolated on the inner wall of the filter bag; in the ash removal mode, the air injection branch pipe is positioned inside the filter bag, high-pressure air flow is sprayed out from the air injection branch pipe to lift accumulated ash on the inner wall of the filter bag, an air suction pump of the ash removal pipeline is opened at the same time, dust lifted in the filter bag is discharged from a lower port of the filter bag, and the dust is adsorbed on the filter bag, so that manual disassembly and cleaning are facilitated.
In the prior art, the conventional dust cleaning means includes that the dust in the filter bag falls off by using an ultrasonic emitter, or the dust falls off by mechanical vibration of the filter bag, and some products blow the filter bag through an air nozzle to shake off the dust, but the dust cleaning is not thorough, and the dust cleaning time is long.
Compared with the prior art, the improved scheme has the key points that firstly, the air injection branch pipe extending into the filter bag is arranged, the air injection nozzles are arranged on the air injection branch pipe, compressed air drives the air injection nozzles to rotate when being sprayed out of the air injection nozzles to form oscillating air flow, the inner surface of the filter bag is hit, and dust adsorbed on the surface of the filter bag is lifted, so that the improved scheme has the advantages of quick ash removal and short time;
and secondly, the dust removal pipeline is arranged and the air suction pump connected with the side wall of the dust removal pipeline is provided with a filter screen at the dust removal pipeline, so that the dust raised in the filter bag is accelerated to fall, the dust removal efficiency is further improved, and the dust is adsorbed on the filter screen of the dust removal pipeline, so that the dust is convenient to clean.
Furthermore, an upper partition plate and a lower partition plate are arranged in the mounting shell, an upper port of the filter bag is fixedly mounted on the upper partition plate, a lower port of the filter bag is fixedly mounted on the lower partition plate, the air outlet pipeline is positioned between the upper partition plate and the lower partition plate, the air inlet pipeline is positioned below the lower partition plate, the air injection branch pipe extends into the filter bag from the lower port of the filter bag, and the air injection branch pipe is connected with a pulse electromagnetic valve; by inputting pulse signals to the pulse electromagnetic valve, the pulse electromagnetic valve is frequently started and closed, pulse airflow is formed in the air injection branch pipe and is sprayed out by the air injection nozzle, dust adsorbed on the surface of the filter bag is blown away by the pulse airflow, and the dust falls out from the lower port of the filter bag.
Furthermore, the upper partition plate is a movable plate capable of moving up and down, and a driving motor for driving the upper partition plate to move up and down is arranged on the outer side of the mounting shell; the upper partition board drives the filter bag to be frequently folded and tensioned through vertical displacement, and dust adsorbed on the surface of the filter bag is shaken off. In the process of cleaning the filter bag, the filter bag is driven to shake by the upper clapboard, so that dust is further separated from the filter bag, the dust cleaning speed is increased, and the dust cleaning time is shortened.
Furthermore, through grooves are formed in two sides of the mounting shell, two ends of the upper partition plate penetrate through the through grooves, a cam is arranged above the part, located on the outer side of the mounting shell, of the upper partition plate and connected with the driving motor, a spring is arranged on the lower side wall in each through groove, and the upper end of the spring is abutted to the upper partition plate; the driving motor drives the cam to rotate, the convex part of the cam repeatedly impacts the upper partition plate, and the upper partition plate moves up and down under the action of the cam and the spring to drive the filter bag to shake off dust.
Furthermore, the both ends of going up the baffle all are equipped with the dust board perpendicularly, the dust board is used for hiding lead to the groove, avoid under the dust removal mode, the air current flows from leading to the groove.
Furthermore, the air inlet pipeline and the air outlet pipeline are both provided with electromagnetic valves; when the dust remover removes dust, the electromagnetic valve of the air inlet pipeline and the electromagnetic valve of the air outlet pipeline are opened, the air pump is closed, air flow with dust enters from the air inlet pipeline, enters the filter bag from the lower port of the filter bag for filtering, and flows out from the air outlet pipeline;
when the filter bag of the dust remover is used for cleaning dust, the electromagnetic valve of the air inlet pipeline is closed, the electromagnetic valve of the air outlet pipeline is opened, the air pump sucks dust raised in the filter bag down, and the electromagnetic valve of the air outlet pipeline is opened to maintain the air pressure balance in the installation shell.
Furthermore, the ash removal pipeline is arranged on the lower side of the bottom plate of the mounting shell, the lower part of the ash removal pipeline is detachably connected with the sealing cover plate, the upper side of the sealing cover plate is connected with a supporting rod, the upper end of the supporting rod is connected with the filter screen, and a connecting port of the ash removal pipeline and the air suction pump is positioned between the filter screen and the sealing cover plate; when the air pump starts, the negative pressure is formed in the ash removal pipeline, dust in the filter bag is sucked onto the filter screen, and when the sealing cover plate is taken out, the filter screen is taken out together through the support rod, so that the filter screen is convenient to clean.
Further, a level sensor is mounted on the inner side wall of the mounting shell, and the level sensor is located above the filter screen and below the air inlet pipeline; when the level sensor detects that the dust on the filter screen is accumulated to a preset height, an alarm signal is sent out to remind an operator to clean the dust.
Further, the air nozzle comprises a rotating sleeve and a conical tube, the conical tube is arranged along the tangential direction of the outer peripheral side of the rotating sleeve, folded edges are arranged in the radial direction of the upper end portion and the lower end portion of the rotating sleeve, and the air injection branch pipe is provided with an annular groove matched with the folded edges.
Compared with the prior art, the invention has the beneficial effects that:
1. the filter bag dust removing device is characterized in that the inside of the filter bag is provided with the air injection branch pipes, the air injection nozzles are arranged on the air injection branch pipes, compressed air drives the air injection nozzles to rotate when being sprayed out of the air injection nozzles, oscillating airflow is formed, the inner surface of the filter bag is hit, and dust adsorbed on the surface of the filter bag is raised, so that the filter bag dust removing device has the advantages of being fast in dust removing and short in dust removing time;
2. the dust removal device is characterized in that the dust removal pipeline and the air pump connected to the side wall of the dust removal pipeline are arranged, and the filter screen is arranged at the dust removal pipeline, so that dust raised in the filter bag is accelerated to fall down, the dust removal efficiency is further improved, and the dust is adsorbed on the filter screen of the dust removal pipeline, and is convenient to clean;
3. a pulse electromagnetic valve is arranged, a pulse signal is input to the pulse electromagnetic valve, the pulse electromagnetic valve is frequently started and closed, pulse air flow is formed in the air injection branch pipe and is injected by the air injection nozzle, dust adsorbed on the surface of the filter bag is blown away by the pulse air flow, and the dust falls out from the lower port of the filter bag;
4. in the process of cleaning the filter bag, the filter bag is driven to shake by the upper clapboard, so that dust is further separated from the filter bag, the dust cleaning speed is increased, and the dust cleaning time is shortened;
5. a material level sensor is arranged on the inner side wall of the mounting shell, and when the material level sensor detects that dust on the filter screen is accumulated to a preset height, an alarm signal is sent out to remind an operator to clean the dust;
6. when taking out sealed apron, through branch takes out the filter screen together, convenient clearance, simplified operation.
Drawings
FIG. 1 is a schematic structural diagram of a method for cleaning dust in a filter bag of a dust collector according to the present invention;
FIG. 2 is a schematic view of the structure of an air nozzle of the present invention;
in the figure: 1. installing a shell; 2. a filter bag; 3. an air intake duct; 4. an air outlet pipe; 5. an air cannon; 6. a soot cleaning pipeline; 7. an air pump; 8. a gas injection branch pipe; 9. an air nozzle; 10. filtering with a screen; 11. sealing the cover plate; 12. an upper partition plate; 13. a lower partition plate; 14. a pulse electromagnetic valve; 15. a drive motor; 16. a through groove; 17. a cam; 18. a spring; 19. a dust blocking plate; 20. a level sensor; 21. rotating the sleeve; 22. a tapered tube; 23. folding edges; 24. and a ring groove.
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.
As shown in fig. 1 to 2, a method for cleaning dust in a filter bag of a dust collector comprises a mounting housing 1, a dust removing system and a dust cleaning system; the dust removal system comprises a filter bag 2, an air inlet pipeline 3 and an air outlet pipeline 4, the ash removal system comprises an external air cannon 5, an ash removal pipeline 6 and an air pump 7 connected with the side wall of the ash removal pipeline 6, the air cannon 5 is connected with a plurality of air injection branch pipes 8 extending into the filter bag, and a plurality of air nozzles 9 are arranged in the air injection branch pipes 8 from top to bottom; the filter bag dust cleaning method comprises the following steps: closing the air inlet pipeline 3, opening the air outlet pipeline 4, and storing compressed air into the air cannon 5; compressed air in the air cannon 5 intermittently enters the air injection branch pipe 8, and when the compressed air is sprayed out of the air injection nozzle 9, the air injection nozzle 9 is driven to rotate to form oscillating airflow, so that the inner surface of the filter bag 2 is struck, and dust adsorbed on the surface of the filter bag 2 is raised; the air pump 7 is started to pump air from the inside of the mounting shell 1, so that dust is adsorbed on the filter screen 10 of the ash removal pipeline 6, the sealing cover plate 11 below the ash removal pipeline 6 is opened, and the filter screen 10 is cleaned.
In the scheme, in the dust removal mode, the airflow with dust entering from the air inlet pipeline 3 is cleaned by the filter bag 2 and then discharged from the air outlet pipeline 4, and the dust in the airflow is isolated on the inner wall of the filter bag 2; in the ash removal mode, the air injection branch pipe 8 is positioned inside the filter bag 2, high-pressure air flow is sprayed out from the air injection branch pipe 8, so that accumulated ash on the inner wall of the filter bag 2 is lifted, the air suction pump 7 of the ash removal pipeline 6 is opened at the same time, so that dust lifted in the filter bag 2 is discharged from the lower port of the filter bag 2, and the dust is adsorbed on the filter screen 10, so that manual disassembly and cleaning are facilitated.
In the prior art, the conventional dust cleaning means includes that the dust in the filter bag 2 falls off by using an ultrasonic emitter, or the dust falls off by mechanical vibration of the filter bag 2, and some products blow the filter bag 2 through an air nozzle to shake off the dust, but the dust cleaning is not thorough, and the dust cleaning time is long.
Compared with the prior art, the improved scheme has the key points that firstly, the air injection branch pipe 8 extending into the filter bag 2 is arranged, the air injection nozzles 9 are arranged on the air injection branch pipe 8, compressed air drives the air injection nozzles 9 to rotate when being injected from the air injection nozzles 9, oscillating airflow is formed, the inner surface of the filter bag 2 is hit, and dust adsorbed on the surface of the filter bag 2 is lifted, so that the improved scheme has the advantages of quick ash removal and short time;
secondly, set up deashing pipeline 6 and at the aspiration pump 7 that 6 lateral walls of deashing pipeline are connected, set up filter screen 10 in deashing pipeline 6 department, make the dust of raising in the filter bag 2 accelerate the whereabouts, further promotion deashing efficiency to make the dust adsorb on the filter screen 10 of deashing pipeline 6, the clearance of being convenient for.
Further, an upper partition plate 12 and a lower partition plate 13 are arranged in the mounting shell 1, an upper port of the filter bag 2 is fixedly mounted on the upper partition plate 12, a lower port of the filter bag 2 is fixedly mounted on the lower partition plate 13, the air outlet pipeline 4 is positioned between the upper partition plate 12 and the lower partition plate 13, the air inlet pipeline 3 is positioned below the lower partition plate 13, the air injection branch pipe 8 extends from the lower port of the filter bag 2, and the air injection branch pipe 8 is connected with a pulse electromagnetic valve 14; by inputting a pulse signal to the pulse solenoid valve 14, the pulse solenoid valve 14 is frequently started and closed, so that pulse air flow is formed in the air injection branch pipe 8 and is injected by the air injection nozzle 9, dust adsorbed on the surface of the filter bag 2 is blown off by the pulse air flow, and the dust falls out from the lower port of the filter bag 2.
Further, the upper partition plate 12 is a movable plate capable of moving up and down, and a driving motor 15 for driving the upper partition plate 12 to move up and down is arranged outside the mounting housing 1; the upper partition plate 12 drives the filter bag 2 to be frequently folded and tensioned through vertical displacement, and dust adsorbed on the surface of the filter bag 2 is shaken off. In the process of cleaning the filter bag 2, the filter bag 2 is driven to shake by the upper clapboard 12, so that dust is further separated from the filter bag 2, the dust cleaning speed is increased, and the dust cleaning time is shortened.
Further, through grooves 16 are formed in two sides of the mounting shell 1, two ends of the upper partition plate 12 penetrate through the through grooves 16, a cam 17 is arranged above a portion, located on the outer side of the mounting shell 1, of the upper partition plate 12, the cam 17 is connected with the driving motor 15, a spring 18 is arranged on the lower side wall in the through groove 16, and the upper end of the spring 18 is abutted to the upper partition plate 12; the driving motor 15 drives the cam 17 to rotate, the convex part of the cam 17 repeatedly impacts the upper partition plate 12, and the upper partition plate 12 moves up and down under the action of the cam 17 and the spring 18 to drive the filter bag 2 to shake off dust.
Furthermore, both ends of the upper partition plate 12 are vertically provided with dust baffles 19, and the dust baffles 19 are used for shielding the through grooves 16 to prevent the airflow from flowing out of the through grooves 16 in the dust removal mode.
Further, the air inlet pipeline 3 and the air outlet pipeline 4 are both provided with electromagnetic valves; when the dust remover removes dust, the electromagnetic valve of the air inlet pipeline 3 and the electromagnetic valve of the air outlet pipeline 4 are opened, the air pump 7 is closed, air flow with dust enters from the air inlet pipeline 3, enters into the filter bag 2 from the lower port of the filter bag 2 for filtering, and flows out from the air outlet pipeline 4;
when the filter bag of the dust remover is used for cleaning dust, the electromagnetic valve of the air inlet pipeline 3 is closed, the electromagnetic valve of the air outlet pipeline 4 is opened, the air pump 7 sucks dust raised in the filter bag 2 down, and the electromagnetic valve of the air outlet pipeline 4 is opened to maintain the air pressure balance in the installation shell 1.
Further, the ash removal pipeline 6 is arranged on the lower side of the bottom plate of the installation shell 1, the sealing cover plate 11 is detachably connected below the ash removal pipeline 6, a supporting rod is connected to the upper side of the sealing cover plate 11, the upper end of the supporting rod is connected with the filter screen 10, and a connecting port of the ash removal pipeline 6 and the air suction pump 7 is located between the filter screen 10 and the sealing cover plate 11; when the air pump 7 is started, negative pressure is formed in the ash removal pipeline 6, dust in the filter bag 2 is sucked onto the filter screen 10, and when the sealing cover plate 11 is taken out, the filter screen 10 is taken out through the support rod, so that the cleaning is convenient.
Further, a level sensor 20 is installed on the inner side wall of the installation housing 1, and the level sensor 20 is located above the filter screen 10 and below the air inlet duct 3; when the level sensor 20 detects that dust on the sieve 10 has accumulated to a preset level, it sends an alarm signal to prompt the operator to clean the dust.
Further, the air nozzle 9 includes a rotating sleeve 21 and a conical tube 22, the conical tube 22 is arranged along the tangential direction of the outer peripheral side of the rotating sleeve 21, folded edges 23 are radially arranged in the upper end and the lower end of the rotating sleeve 21, and the air injection branch pipe 8 is provided with an annular groove 24 matched with the folded edges 23.
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 (9)
1. A filter bag dust cleaning method of a dust remover is characterized in that the dust remover comprises an installation shell, a dust removal system and a dust cleaning system; the dust removal system comprises a filter bag, an air inlet pipeline and an air outlet pipeline, the dust removal system comprises an external air cannon, a dust removal pipeline and an air pump connected with the side wall of the dust removal pipeline, the air cannon is connected with a plurality of air injection branch pipes extending into the filter bag, and a plurality of air nozzles are arranged in the air injection branch pipes from top to bottom;
the filter bag dust cleaning method comprises the following steps:
closing the air inlet pipeline, opening the air outlet pipeline, and storing compressed air into the air cannon;
compressed air in the air cannon intermittently enters the air injection branch pipe, and when the compressed air is injected out of the air injection nozzle, the air injection nozzle is driven to rotate to form oscillating airflow, so that the inner surface of the filter bag is struck, and dust adsorbed on the surface of the filter bag is raised;
the air suction pump is started to suck air from the inside of the mounting shell, so that dust is adsorbed on the filter screen of the ash removal pipeline;
and opening a sealing cover plate below the ash removal pipeline to clean the filter screen.
2. The method for removing dust in the filter bag of the dust collector as claimed in claim 1, wherein an upper partition plate and a lower partition plate are arranged in the mounting housing, the upper port of the filter bag is fixedly mounted on the upper partition plate, the lower port of the filter bag is fixedly mounted on the lower partition plate, the gas outlet pipeline is positioned between the upper partition plate and the lower partition plate, the gas inlet pipeline is positioned below the lower partition plate, the gas injection branch pipe extends from the lower port of the filter bag, and the gas injection branch pipe is connected with a pulse solenoid valve; pulse signals are input to the pulse electromagnetic valve, so that the pulse electromagnetic valve is frequently started and closed, pulse airflow is formed in the air injection branch pipe and is injected out of the air injection nozzle.
3. The method for removing dust in the filter bag of the dust collector as claimed in claim 2, wherein the upper partition is a movable plate capable of moving up and down, and a driving motor for driving the upper partition to move up and down is arranged outside the mounting housing; the upper partition board drives the filter bag to be frequently folded and tensioned through vertical displacement, and dust adsorbed on the surface of the filter bag is shaken off.
4. The method for removing dust in filter bags of a dust collector as claimed in claim 3, wherein through slots are provided on both sides of the mounting housing, both ends of the upper partition plate pass through the through slots, a cam is provided above the part of the upper partition plate located on the outer side of the mounting housing, the cam is connected with the driving motor, a spring is provided on the lower side wall in the through slot, and the upper end of the spring abuts against the upper partition plate; the driving motor drives the cam to rotate, the convex part of the cam repeatedly impacts the upper partition plate, and the upper partition plate moves up and down under the action of the cam and the spring to drive the filter bag to shake off dust.
5. The method for removing dust from a filter bag of a dust collector as claimed in claim 4, wherein two ends of the upper partition are vertically provided with dust shields for shielding the through grooves.
6. The method for cleaning the filter bag of the dust collector as claimed in claim 1, wherein the air inlet pipeline and the air outlet pipeline are both provided with electromagnetic valves; when the dust remover removes dust, the electromagnetic valve of the air inlet pipeline and the electromagnetic valve of the air outlet pipeline are opened, the air pump is closed, and when the dust remover filters the dust, the electromagnetic valve of the air inlet pipeline is closed, the electromagnetic valve of the air outlet pipeline is opened, and the air pump is opened.
7. The method for removing dust in the filter bag of the dust collector as claimed in claim 1, wherein the dust removing pipe is arranged on the lower side of the bottom plate of the mounting shell, the sealing cover plate is detachably connected to the lower side of the dust removing pipe, a supporting rod is connected to the upper side of the sealing cover plate, the upper end of the supporting rod is connected with the filter screen, and a connecting port of the dust removing pipe and the air pump is located between the filter screen and the sealing cover plate; when the air pump is started, negative pressure is formed in the ash removal pipeline, dust in the filter bag is sucked onto the filter screen, and when the sealing cover plate is taken out, the filter screen is taken out through the support rod.
8. The method for cleaning dust in filter bags of a dust collector as claimed in claim 1, wherein a level sensor is installed on the inner side wall of the installation shell, and the level sensor is located above the filter screen and below the air inlet pipeline; when the level sensor detects that the dust on the filter screen is accumulated to a preset height, an alarm signal is sent out to remind an operator to clean the dust.
9. The method for removing dust from filter bags of a dust collector as claimed in claim 1, wherein the air nozzle comprises a rotary sleeve and a conical tube, the conical tube is arranged along a tangential direction of an outer peripheral side of the rotary sleeve, folded edges are arranged in radial directions of upper and lower end portions of the rotary sleeve, and the air injection branch tube is provided with an annular groove matched with the folded edges.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111161511.8A CN113731053A (en) | 2021-09-30 | 2021-09-30 | Filter bag ash removal method of dust remover |
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| CN202111161511.8A CN113731053A (en) | 2021-09-30 | 2021-09-30 | Filter bag ash removal method of dust remover |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116930021A (en) * | 2023-09-15 | 2023-10-24 | 武汉森源蓝天环境科技工程有限公司 | Dust detection device |
| CN117138477A (en) * | 2023-09-11 | 2023-12-01 | 中国矿业大学 | High-efficiency ash removal filter cartridge with increased filtering area and use method thereof |
| CN117582746A (en) * | 2024-01-08 | 2024-02-23 | 韶关市凯迪技术开发有限公司 | Self-dedusting device for dust collection filter bag |
| CN118022449A (en) * | 2024-04-12 | 2024-05-14 | 北票鼎新实业有限公司 | Mineral dust treatment equipment |
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| CN118022449B (en) * | 2024-04-12 | 2024-07-16 | 北票鼎新实业有限公司 | Mineral dust treatment equipment |
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Application publication date: 20211203 |