Pulse blowback filter cartridge dust remover

Abstract

The utility model discloses a pulse blowback filter cartridge dust remover which comprises a dust remover main body, an exhaust fan is fixedly installed at the upper end of the dust remover main body in a penetrating mode, and a partition plate is fixedly installed on the inner wall of the upper end of the dust remover main body. Filter cartridges used for filtering dust-containing gas are fixedly installed on the end faces of the two sides of the partition plate in a penetrating mode, pressure sensors are fixedly installed at the inner bottom and the outer bottom of each filter cartridge correspondingly, a maintenance opening is formed in the outer side of the lower end of the dust remover body in a penetrating mode, and a sealing door is installed on the outer side of the maintenance opening in a hinged mode. A dust barrel for collecting dust and impurities is movably connected to the inner bottom of the dust remover body in an attached mode, and an air inlet grille is fixedly installed on the front side of the lower end of the dust remover body in a penetrating mode; an air supply tank is fixedly mounted on the outer side wall of the upper end of the dust remover main body in a supporting manner. According to the dust removal device, dust removal can be conveniently carried out on the filter cartridge, and meanwhile, the inner surface of the filter cartridge can be uniformly swung, blown and cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of cartridge dust collectors, in particular to a pulse jet cartridge dust collector. Background Technique

[0002] A cartridge dust collector is a dry filtering dust removal device that uses cartridges (or filter bags) made of fiber fabrics to capture solid particles in the dust-containing gas and accumulates them on the outer surface of the cartridges. The purified gas enters the box body and then is discharged into the atmosphere through the exhaust duct. Its core component is the filter material, which is applied to the industrial dust removal field as a filtering medium.

[0003] The main functions of the cartridge dust collector include: purifying air: the cartridge dust collector can efficiently remove particulate matter in the waste gas, purify the air quality, and improve the industrial production environment. Protecting health: by reducing dust particles in the air, the cartridge dust collector helps to protect the respiratory health of workers and reduce the risk of occupational diseases. Promoting sustainable development: as a kind of environmental protection equipment, the application of the cartridge dust collector helps to reduce environmental pollution caused by industrial emissions and promote sustainable development. Improving production efficiency: the cartridge dust collector has a high degree of automation, can realize automatic dust cleaning and remote monitoring, reduce manual intervention, and improve work efficiency.

[0004] However, in actual use of the prior art, during the use of the cartridge dust collector, a gas nozzle is used in combination with high-pressure gas to perform dust cleaning operations on the cartridges inside the cartridge dust collector. However, when using the gas nozzle in combination with high-pressure gas to perform dust cleaning operations on the cartridges inside the cartridge dust collector, the commonly used gas nozzles usually jet air into the cartridges in a fixed manner. When the gas nozzle jets air into the cartridges in a fixed manner, it is easy to cause uneven dust cleaning inside the cartridges, thereby affecting the use effect of the cartridge dust collector. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pulse jet cartridge dust collector to solve the problem that during the use of the cartridge dust collector as mentioned in the above background technique, a gas nozzle is used in combination with high-pressure gas to perform dust cleaning operations on the cartridges inside the cartridge dust collector. However, when using the gas nozzle in combination with high-pressure gas to perform dust cleaning operations on the cartridges inside the cartridge dust collector, the commonly used gas nozzles usually jet air into the cartridges in a fixed manner. When the gas nozzle jets air into the cartridges in a fixed manner, it is easy to cause uneven dust cleaning inside the cartridges, thereby affecting the use effect of the cartridge dust collector.

[0006] To achieve the above object, the present utility model provides the following technical solutions: It includes a dust collector main body, on the upper end of which is fixedly installed a exhaust fan penetrating through. On the inner wall of the upper end of the dust collector main body is fixedly installed a partition plate. On both end faces of the partition plate are fixedly installed filter cartridges for filtering dust-containing gas. Pressure sensors are respectively fixedly installed at the inner bottom and outer bottom of the filter cartridges. On the outer side of the lower end of the dust collector main body is an opening for maintenance, and on the outside of the maintenance opening is hingedly installed a sealing door. Closely and movably connected to the inner bottom of the dust collector main body is an ash bucket for collecting dust and impurities. On the front side of the lower end of the dust collector main body is fixedly installed an air inlet grille.

[0007] On the outer side wall of the upper end of the dust collector main body is supported and fixedly installed a gas supply tank. At the outlet of the upper end of the gas supply tank is fixedly installed and connected a pulse solenoid valve. At the opening on the side end of the pulse solenoid valve is fixedly installed and connected an air outlet pipe. At the lower end inside the air outlet pipe is fixedly installed and connected an air outlet. At the opening of the lower end of the air outlet is rotatably connected a cleaning pipe through a rotating joint. On the outer curved surface of the cleaning pipe is fixedly installed and connected a nozzle for blowing and cleaning the inside of the filter cartridge. On the outer curved surface of the upper end of the cleaning pipe is fixedly installed a transmission gear. On both sides of the upper end face of the partition plate are supported and fixedly installed driving motors. On the inner side of the transmission shaft of the driving motors is fixedly installed a transmission lead screw. Threadedly connected to the outer curved surface of the middle part of the transmission lead screw is a lead screw nut. On the inner side of the lead screw nut is supported and fixedly installed a transmission straight rack. At both outer ends of the transmission straight rack are respectively closely and movably connected to limit straight chutes. Fixedly installed on the inner wall of the outer ends of the limit straight chutes are pressing limit switches.

[0008] Preferably, the number of the filter cartridges is six. Every three filter cartridges are taken as a group, and the two groups of filter cartridges are symmetrically distributed with respect to the end face of the partition plate.

[0009] Preferably, sealing strips are respectively adhered to the inner side of the sealing door and the outer side of the maintenance opening.

[0010] Preferably, the air outlet pipe is fixedly installed and penetrates through the middle part of the upper end of the dust collector main body, and the opening of the lower end of the air outlet is located directly above the filter cartridge.

[0011] Preferably, the lower end of the cleaning pipe extends downward to the middle part inside the filter cartridge. The number of the nozzles is several, and they are spirally distributed in sequence from top to bottom on the outer curved surface of the cleaning pipe.

[0012] Preferably, the number of the driving motors is two, and they are symmetrically distributed on both sides of the upper end face of the partition plate. The transmission lead screw is rotatably supported by a bearing seat on the upper end of the partition plate.

[0013] Preferably, the inner side of the driving straight rack is meshed and connected with the outer side of the driving gear, and the limiting straight sliding groove is fixedly installed and supported at the upper end of the partition plate.

[0014] Preferably, the pressing limit switch and the middle parts of both ends of the outer side of the driving straight rack are on the same horizontal line.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. When the internal and external pressure difference of the filter cartridge reaches the preset value of the pressure sensor in the present utility model, the pulse solenoid valve is controlled to open. When the pulse solenoid valve opens, the compressed air inside the air supply tank is discharged into the outlet pipe. When the compressed air is discharged into the outlet pipe, the compressed air inside the outlet pipe enters the cleaning pipe along the air outlet and is sprayed onto the inner surface of the filter cartridge through the nozzle, so that the dust deposited on the filter cartridge is separated from the outer surface of the filter cartridge under the action of the high-pressure air flow and falls into the ash bucket. At the same time, by opening the sealing door, after the sealing door is opened, the dust collected inside the ash bucket can be cleaned through the maintenance port, so as to realize the function of filtering and purifying the dust-containing gas and facilitating the cleaning of the dust inside the dust collector main body;

[0017] 2. The present utility model also controls the driving motor to start. When the driving motor starts, it drives the driving lead screw to rotate. When the driving lead screw rotates, it drives the lead screw nut to move back and forth due to the threaded connection on the outer curved surface of the middle part of the driving lead screw. When the lead screw nut moves back and forth, it drives the driving straight rack to linearly move back and forth along the inner wall of the limiting straight sliding groove. When the driving straight rack linearly moves back and forth, it drives the driving gear to rotate. When the driving gear rotates, it drives the cleaning pipe to rotate. When the cleaning pipe rotates, it drives the nozzle to swing. When the nozzle swings, it blows air onto the inner surface of the filter cartridge in a swinging manner, so as to realize the function of facilitating the dust cleaning of the filter cartridge and evenly blowing and cleaning the inner surface of the filter cartridge in a swinging manner. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall structure of a pulse reverse blowing filter cartridge dust collector of the present utility model Figure 1 ;

[0019] Figure 2 is a schematic diagram of the overall structure of a pulse reverse blowing filter cartridge dust collector of the present utility model Figure 2 ;

[0020] Figure 3 is a schematic cross-sectional view of the overall structure of a pulse reverse blowing filter cartridge dust collector of the present utility model;

[0021] Figure 4 is a schematic cross-sectional view of a partial structure of a pulse reverse blowing filter cartridge dust collector of the present utility model.

[0022] In the figure: 1. Dust collector main body; 2. Exhaust fan; 3. Partition plate; 4. Filter cartridge; 5. Pressure sensor; 6. Maintenance opening; 7. Sealing door; 8. Ash bucket; 9. Gas supply tank; 10. Pulse solenoid valve; 11. Outlet pipe; 12. Air outlet; 13. Cleaning pipe; 14. Nozzle; 15. Driving gear; 16. Driving motor; 17. Driving lead screw; 18. Lead screw nut; 19. Driving straight rack; 20. Limit straight chute; 21. Pressing limit switch; 22. Air inlet grille. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-4 , the present invention provides a technical solution for a pulse backwashing filter cartridge dust collector: including a dust collector main body 1, an exhaust fan 2 is fixedly installed through the upper end of the dust collector main body 1, a partition plate 3 is fixedly installed on the inner wall of the upper end of the dust collector main body 1, and filter cartridges 4 for filtering dust-containing gas are fixedly installed through both end faces of the partition plate 3. And the number of filter cartridges 4 is six, with every three filter cartridges 4 as a group, and the two groups of filter cartridges 4 are symmetrically distributed with respect to the end face of the partition plate 3. Pressure sensors 5 are fixedly installed at the inner bottom and outer bottom of the filter cartridge 4 respectively. A maintenance opening 6 is opened through the outer side of the lower end of the dust collector main body 1, and a sealing door 7 is hingedly installed on the outer side of the maintenance opening 6. And sealing strips are respectively adhered to the inner side of the sealing door 7 and the outer side of the maintenance opening 6, so that the joint between the inner side of the sealing door 7 and the outer side of the maintenance opening 6 is sealed by the sealing strip. An ash bucket 8 for collecting dust and impurities is movably connected in a fitting manner at the inner bottom of the dust collector main body 1, and an air inlet grille 22 is fixedly installed through the front side of the lower end of the dust collector main body 1;

[0025] On the outer side wall of the upper end of the dust collector main body 1, an air supply tank 9 is supported and fixedly installed. At the outlet of the upper end of the air supply tank 9, a pulse solenoid valve 10 is connected and fixedly installed. At the side opening of the pulse solenoid valve 10, an air outlet pipe 11 is connected and fixedly installed, so that the pulse solenoid valve 10 controls the air supply tank 9 to provide compressed air for the air outlet pipe 11. The air outlet pipe 11 passes through and is fixedly installed in the middle of the upper end of the dust collector main body 1. At the lower end inside the air outlet pipe 11, an air outlet 12 is connected and fixedly installed, and the lower opening of the air outlet 12 is located directly above the filter cartridge 4. The lower opening of the air outlet 12 is rotatably connected to a cleaning pipe 13 through a rotary joint, and the lower end of the cleaning pipe 13 extends downward to the middle inside the filter cartridge 4. A nozzle 14 for blowing and cleaning the inside of the filter cartridge 4 is connected and fixedly installed on the outer surface of the cleaning pipe 13, and the number of nozzles 14 is several, which are spirally distributed in sequence from top to bottom on the outer surface of the cleaning pipe 13. A transmission gear 15 is fixedly installed on the outer surface of the upper end of the cleaning pipe 13. On both sides of the upper end surface of the partition plate 3, a driving motor 16 is supported and fixedly installed, and the number of driving motors 16 is two, which are symmetrically distributed on both sides of the upper end surface of the partition plate 3. A transmission lead screw 17 is fixedly installed on the inner side transmission shaft part of the driving motor 16, and the transmission lead screw 17 is supported and rotatably connected to the upper end of the partition plate 3 through a bearing seat. A lead screw nut 18 is threadedly connected to the outer surface of the middle part of the transmission lead screw 17. A transmission straight rack 19 is supported and fixedly installed on the inner side of the lead screw nut 18, and the inner side of the transmission straight rack 19 is meshed and connected with the outer side of the transmission gear 15. Both ends of the outer side of the transmission straight rack 19 are respectively fitted and movably connected to a limit straight chute 20, and the limit straight chute 20 is supported and fixedly installed on the upper end of the partition plate 3, so that the limit straight chute 20 limits the linear movement of the transmission straight rack 19. A pressing limit switch 21 is fixedly installed on the inner wall of the outer end of the limit straight chute 20, and the pressing limit switch 21 and the middle parts of both ends of the outer side of the transmission straight rack 19 are on the same horizontal line.

[0026] Working principle: When in use, the utility model controls the opening of the exhaust fan 2. When the exhaust fan 2 is opened, the inside of the dust collector main body 1 will be exhausted, causing a negative pressure inside the dust collector main body 1. When a negative pressure is generated inside the dust collector main body 1, the external dust-containing gas will be sucked into the dust collector main body 1 through the air intake grille 22. When the external dust-containing gas is sucked into the dust collector main body 1, under the action of gravity, large-particle dust impurities will fall into the ash bucket 8, and fine dust will be filtered and separated by the filter cartridge 4. The separated dust will be adsorbed on the outer end of the filter cartridge 4, and the separated and purified air will be discharged outward from the outlet of the exhaust fan 2, thereby realizing the function of filtering and purifying the dust-containing gas.

[0027] When the separated dust adheres to the outer end of the filter cartridge 4, the dust will continuously accumulate on the outer end of the filter cartridge 4, causing the pressure difference between the inside and outside of the filter cartridge 4 to continuously increase. The pressure sensor 5 will monitor the pressures inside and outside the filter cartridge 4. When the pressure difference between the inside and outside of the filter cartridge 4 reaches the preset value of the pressure sensor 5, the pulse solenoid valve 10 is controlled to open. When the pulse solenoid valve 10 opens, the compressed air inside the air supply tank 9 is discharged into the outlet pipe 11. When the compressed air is discharged into the outlet pipe 11, the compressed air inside the outlet pipe 11 enters the cleaning pipe 13 along the air outlet 12 and is sprayed onto the inner surface of the filter cartridge 4 through the nozzle 14, causing the dust deposited on the filter cartridge 4 to be separated from the outer surface of the filter cartridge 4 under the action of the high-pressure air flow and fall into the ash bucket 8. At the same time, by opening the sealing door 7, after the sealing door 7 is opened, the dust collected inside the ash bucket 8 can be cleaned through the maintenance port 6, thereby realizing the function of filtering and purifying the dust-containing gas while facilitating the cleaning of the dust inside the dust collector main body 1;

[0028] By controlling the opening of the driving motor 16, when the driving motor 16 is turned on, it will drive the transmission lead screw 17 to rotate. When the transmission lead screw 17 rotates, it will drive the lead screw nut 18 to move back and forth due to the threaded connection with the outer curved surface in the middle of the transmission lead screw 17. When the lead screw nut 18 moves back and forth, it will drive the transmission straight rack 19 to move back and forth linearly along the inner wall of the limit straight chute 20. When the transmission straight rack 19 moves back and forth linearly, it will drive the transmission gear 15 to rotate. When the transmission gear 15 rotates, it will drive the cleaning pipe 13 to rotate. When the cleaning pipe 13 rotates, it will drive the nozzle 14 to swing. When the nozzle 14 swings, it will blow air onto the inner surface of the filter cartridge 4 in a swinging manner, thereby realizing the function of facilitating the dust cleaning of the filter cartridge 4 while being able to blow air onto the inner surface of the filter cartridge 4 in a uniform swinging manner for dust cleaning;

[0029] At the same time, when the transmission straight rack 19 moves back and forth linearly along the inner wall of the limit straight chute 20, the transmission straight rack 19 will touch and press the pressing limit switch 21. When the transmission straight rack 19 touches and presses the pressing limit switch 21, the driving motor 16 can be controlled to reverse through the pressing limit switch 21, causing the driving motor 16 to drive the transmission straight rack 19 to move back and forth linearly in a cycle. When the transmission straight rack 19 moves back and forth linearly in a cycle, the nozzle 14 can be driven to swing in a cycle, enabling the nozzle 14 to blow air onto the inner surface of the filter cartridge 4 in a cyclic swinging and uniform manner for dust cleaning.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulse back-blowing cartridge dust collector, characterized in that: The invention comprises a dust collector body (1), wherein an exhaust fan (2) is fixedly installed through the upper end of the dust collector body (1), a partition plate (3) is fixedly installed on the inner wall of the upper end of the dust collector body (1), filter cartridges (4) for filtering dust-containing gas are fixedly installed through the end surfaces of both sides of the partition plate (3), and pressure sensors (5) are fixedly installed on the inner bottom and outer bottom of the filter cartridge (4), respectively, a maintenance opening (6) is opened through the outer side of the lower end of the dust collector body (1), and a sealing door (7) is hingedly installed on the outer side of the maintenance opening (6), an ash bucket (8) for collecting dust and impurities is movably connected to the inner bottom of the dust collector body (1), and an air intake grille (22) is fixedly installed through the front side of the lower end of the dust collector body (1); The outer wall support of the upper end of the dust collector body (1) is fixedly provided with an air supply tank (9), the upper end outlet of the air supply tank (9) is connected to and fixedly provided with a pulse electromagnetic valve (10), the side opening of the pulse electromagnetic valve (10) is connected to and fixedly provided with an air outlet pipe (11), the lower end of the inner side of the air outlet pipe (11) is connected to and fixedly provided with an air outlet (12), the lower end opening of the air outlet (12) is rotatably connected to a cleaning pipe (13) through a swivel joint, the outer curved surface of the cleaning pipe (13) is connected to and fixedly provided with a nozzle (14) for blowing air to clean the inside of the filter cartridge (4), and the cleaning pipe (13) is connected to and fixedly provided with a nozzle (14) for blowing air to clean the inside of the filter cartridge (4). ) is fixedly installed with a transmission gear (15) on the outer curved surface of the upper end, and a driving motor (16) is fixedly installed on both sides of the upper end surface of the partition plate (3), and a transmission screw (17) is fixedly installed on the inner transmission shaft part of the driving motor (16), and a screw nut (18) is threadedly connected to the middle outer curved surface of the transmission screw (17), and a transmission spur rack (19) is fixedly installed on the inner support of the screw nut (18), and the outer ends of the transmission spur rack (19) are respectively fitted and movably connected with a limit straight slide groove (20), and a press limit switch (21) is fixedly installed on the inner wall of the outer end of the limit straight slide groove (20).

2. A pulse back-flushing cartridge dust collector according to claim 1, characterized in that: There are six filter cartridges (4), three of which form a group, and two groups of filter cartridges (4) are symmetrically distributed on the end faces of the partition plate (3).

3. A pulse back-flushing cartridge dust collector according to claim 2, characterized in that: Sealing strips are respectively bonded to the inner side of the sealing door (7) and the outer side of the maintenance opening (6).

4. A pulse back-flushing cartridge dust collector according to claim 3, characterized in that: The air outlet pipe (11) is fixedly installed through the middle of the upper end of the dust collector body (1), and the lower end opening of the air outlet (12) is located above the filter cartridge (4).

5. A pulse back-flushing cartridge dust collector according to claim 4, characterized in that: The lower end of the cleaning pipe (13) extends downward to the middle of the filter cartridge (4), and the nozzles (14) are in a plurality and are respectively distributed in a spiral pattern from top to bottom along the outer curved surface of the cleaning pipe (13).

6. A pulse back-flushing cartridge dust collector according to claim 5, characterized in that: There are two drive motors (16), which are symmetrically distributed on both sides of the upper end surface of the partition plate (3). The transmission screw (17) is rotatably connected to the upper end of the partition plate (3) through the support of the bearing seat.

7. A pulse back-flushing cartridge dust collector according to claim 6, characterized in that: The inner side of the transmission spur rack (19) and the outer side of the transmission gear (15) are meshed and connected with each other, and the limiting straight slide groove (20) is supported and fixedly installed on the upper end of the partition plate (3).

8. The pulse back-flushing cartridge dust collector according to claim 7, characterized in that: The pressing limit switch (21) and the middle parts of the two outer ends of the transmission spur rack (19) are on the same horizontal line.

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