Pulse backblowing ash cleaning device

Abstract

This utility model discloses a pulse backflushing cleaning device, relating to the field of pulse cleaning technology. It includes a housing and an isolation plate, the isolation plate being fixedly connected inside the housing and dividing the housing into upper and lower parts. The portion of the housing located at the top of the isolation plate is configured as a clean air chamber. This pulse backflushing cleaning device is equipped with an air supply structure. When high-pressure gas enters the impact tube, the gas inside the impact tube will be discharged to the outside of the impact tube through multiple vents. The gas discharged through the vents will pass between two guide plates, which guide the gas discharged from the impact tube. This ensures that the downward angle of the gas flow after exiting the impact tube forms an acute angle with the impact tube, allowing the gas to impact the dust on the outside of the filter cartridge at a certain angle during the impact process inside the filter cartridge, thereby improving the dust removal effect of the pulse gas.

Description

Technical Field

[0001] This utility model relates to the field of pulse cleaning technology, specifically a pulse backflushing cleaning device. Background Technology

[0002] Pulse backflushing cleaning involves injecting compressed air or gas into the filter to generate a pulse backflushing force, which blows away dust particles accumulated on the filter surface and maintains the normal operation of the filter.

[0003] For example, a pulse-jet cleaning device with publication number CN206499961U. The device comprises an upper chamber, a middle chamber, and a lower chamber connected in sequence. The upper chamber has a pulse valve on one side and an air outlet on the other side. The middle chamber has an air inlet on one side, and the lower chamber has a rotary valve at its dust outlet. Several filter bags are evenly distributed on the top surface of the middle chamber, each filter bag containing a frame. Several nozzles facing the filter bags are evenly distributed on the jet pipe extending from the pulse valve into the upper chamber. The frame includes a protective ring and a base, as well as a support pipe connecting the protective ring and the base, with multiple support rings inside the support pipe. At least three sets of return springs are sequentially arranged on the support pipe from top to bottom, each set including two return springs. The free ends of the return springs are connected to the filter bags via connecting devices. This design provides a pulse-jet cleaning device with good cleaning performance.

[0004] One of the pulse back-flushing cleaning devices in the above technical solution uses multiple sets of reset springs to drive the filter bag to shake, and works with a pulse valve to remove dust from the dust bag. However, in actual use, the pulse airflow loses a lot of energy during its flow inside the dust bag, resulting in poor dust removal effect. Utility Model Content

[0005] The purpose of this invention is to provide a pulse backflushing cleaning device to solve the problem in the above-mentioned background technology that the pulse airflow loses a lot of energy during the process of flowing inside the dust collector bag, resulting in poor dust removal effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pulse backflushing dust removal device, comprising a housing and an isolation plate, wherein the isolation plate is fixedly connected to the inside of the housing and the isolation plate divides the inside of the housing into upper and lower parts, wherein the part of the inside of the housing located at the top of the isolation plate is configured as a clean air chamber, and the part of the inside of the housing located at the bottom of the isolation plate is configured as a dust collection chamber;

[0007] The clean air chamber is equipped with an air supply structure, which includes an air guide pipe fixedly connected to the clean air chamber. The air guide pipe has four output ends and one input end. Each of the four output ends of the air guide pipe is fixedly connected to an impact pipe, and each impact pipe is located inside the dust collection chamber.

[0008] The bottom of the housing is equipped with a control structure to control the dust discharge rate.

[0009] Preferably, the air inlet tube extends through the housing to its outer side, and four pulse valves are fixedly connected to the top of the air inlet tube in a matrix distribution, with the four pulse valves aligned with the four output ends of the air inlet tube.

[0010] Preferably, the outer side of the impact tube is provided with vent holes distributed in a ring, and the outer side of the impact tube is fixedly connected with guide plates distributed vertically at equal intervals. The guide plates are located at the upper and lower ends of each vent hole, and the guide plates form a downward acute angle with the outer side of the impact tube.

[0011] Preferably, a piston is slidably connected inside the lower end of the impact tube, and the lower end of the piston is fixedly connected to the bottom of the impact tube. An impact hammer is fixedly connected to the bottom of the piston, and a spring is fixedly connected between the bottom of the piston and the bottom of the inner side of the impact tube. The outer side of the piston and the inner side of the impact tube are in contact with each other, and the impact hammer is made of an elastic material.

[0012] Preferably, the outer side of the box is provided with an air inlet and an exhaust outlet, the air inlet is connected to the interior of the dust collection chamber, and the exhaust outlet is connected to the interior of the clean air chamber. The bottom of the box is provided with a dust discharge outlet, which is located at the bottom of the dust collection chamber.

[0013] Preferably, a dust discharge pipe is fixedly connected to the bottom of the dust discharge port, and an installation chamber is fixedly connected to one side of the dust discharge pipe. A ring-shaped baffle is rotatably connected inside the installation chamber, and the outer side of the baffle is in contact with the inner side of the dust discharge pipe. The ring-shaped baffle is driven by a motor.

[0014] Preferably, the isolation plate has four mounting rings fixedly connected in a matrix, and each mounting ring is aligned with each impact tube. The lower outer end of the mounting ring is threaded with a filter cartridge, and the impact tube is located inside the filter cartridge.

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

[0016] This pulse jet cleaning device is equipped with an air supply structure. When high-pressure gas enters the impact tube, the gas inside the impact tube will be discharged to the outside of the impact tube through multiple air vents. The gas discharged through the air vents will pass between two guide plates. The two guide plates guide the gas discharged from the impact tube, so that the downward angle of the gas flow after exiting the impact tube forms an acute angle with the impact tube. This allows the gas to impact the dust on the outside of the filter cartridge at a certain angle during the impact process inside the filter cartridge, thereby improving the dust removal effect of the pulse gas.

[0017] Furthermore, while high-pressure gas is introduced into the impact tube, the high-pressure gas will drive the piston to move downward. The downward movement of the piston will compress the spring at the bottom of the piston, causing the piston to drive the impact hammer to move downward until the impact hammer contacts the bottom of the filter cartridge. This causes the impact hammer to impact the filter cartridge, thereby driving the entire filter cartridge to vibrate. The dust removal effect of the filter cartridge is improved through the impact of the impact hammer on the filter cartridge and the synergistic effect of the pulse gas.

[0018] Furthermore, a control structure is provided to start the motor that drives the baffle to rotate, causing the part of the baffle located inside the dust discharge pipe to rotate downwards. The baffle blocks the falling dust, and at the same time, the dust moves downwards inside the dust discharge pipe when the baffle rotates, thereby controlling the dust discharge rate inside the dust collection chamber and preventing the dust discharge rate from being too fast and causing dust to be stirred up. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the box body of this utility model;

[0021] Figure 3 This is a schematic diagram of the isolation plate structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the impact tube of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the installation compartment of this utility model;

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the filter cartridge of this utility model.

[0026] In the diagram: 1. Housing; 2. Isolation plate; 3. Clean air chamber; 4. Dust collection chamber; 5. Air inlet; 6. Exhaust port; 7. Dust discharge port; 8. Mounting ring; 9. Air guide pipe; 10. Pulse valve; 11. Impact pipe; 12. Vent hole; 13. Guide plate; 14. Piston; 15. Impact hammer; 16. Dust discharge pipe; 17. Mounting chamber; 18. Baffle; 19. Filter cartridge. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] Please see Figure 1 - Figure 7 The present invention provides the following technical solution:

[0030] A pulse backflushing dust removal device includes a housing 1 and an isolation plate 2. The isolation plate 2 is fixedly connected to the inside of the housing 1 and divides the inside of the housing 1 into upper and lower parts. The part of the inside of the housing 1 located at the top of the isolation plate 2 is set as a clean air chamber 3, and the part of the inside of the housing 1 located at the bottom of the isolation plate 2 is set as a dust collection chamber 4.

[0031] The clean air chamber 3 is equipped with an air supply structure, which includes an air guide pipe 9 fixedly connected inside the clean air chamber 3. The air guide pipe 9 is equipped with four output ends and one input end. Each of the four output ends of the air guide pipe 9 is fixedly connected to an impact pipe 11, and each impact pipe 11 is located inside the dust collection chamber 4.

[0032] The bottom of the housing 1 is equipped with a control structure to control the dust discharge rate.

[0033] The air inlet pipe 9 extends through the housing 1 to its outer side, and four pulse valves 10 arranged in a matrix are fixedly connected to the top of the air inlet pipe 9, and the four pulse valves 10 are aligned with the four output ends of the air inlet pipe 9.

[0034] The impact tube 11 has annularly distributed vent holes 12 on its outer side, and vertically equidistant guide plates 13 are fixedly connected to the outer side of the impact tube 11. The guide plates 13 are located at the upper and lower ends of each vent hole 12, and the guide plates 13 form a downward acute angle with the outer side of the impact tube 11.

[0035] A piston 14 is slidably connected inside the lower end of the impact tube 11, and the lower end of the piston 14 is fixedly connected to the bottom of the impact tube 11. An impact hammer 15 is fixedly connected to the bottom of the piston 14, and a spring is fixedly connected between the bottom of the piston 14 and the bottom of the inner side of the impact tube 11. The outer side of the piston 14 and the inner side of the impact tube 11 are in contact with each other, and the impact hammer 15 is made of elastic material.

[0036] The outer side of the housing 1 is provided with an air inlet 5 and an exhaust outlet 6, and the air inlet 5 is connected to the interior of the dust collection chamber 4, and the exhaust outlet 6 is connected to the interior of the clean air chamber 3. The bottom of the housing 1 is provided with a dust discharge outlet 7, and the dust discharge outlet 7 is located at the bottom of the dust collection chamber 4.

[0037] A dust discharge pipe 16 is fixedly connected to the bottom of the dust discharge port 7, and an installation chamber 17 is fixedly connected to one side of the dust discharge pipe 16. A ring-shaped baffle 18 is rotatably connected inside the installation chamber 17, and the outer side of the baffle 18 is in contact with the inner side of the dust discharge pipe 16. The ring-shaped baffle 18 is driven by a motor.

[0038] The isolation plate 2 has four mounting rings 8 fixedly connected in a matrix, and each mounting ring 8 is aligned with each impact tube 11. The lower outer side of the mounting ring 8 is threaded with a filter cartridge 19, and the impact tube 11 is located inside the filter cartridge 19.

[0039] Example 2:

[0040] Based on Example 1, its specific working principle is as follows:

[0041] This pulse backflushing dust removal device first discharges dust-laden gas into the dust collection chamber 4 through the air inlet 5. At this time, the dust-laden gas will enter the inner side of multiple filter cartridges 19 through the outer side of the filter cartridges 19. During this process, the filter cartridges 19 will filter the dust-laden gas, and the dust contained in the dust-laden gas will adhere to the outer side of the filter cartridges 19. After passing through the filter cartridges 19, the dust-laden gas becomes clean gas. The clean gas enters the clean air chamber 3 through the mounting ring 8 at the top of the filter cartridges 19, and finally exits the device through the exhaust port 6, thus completing the dust removal of the gas.

[0042] Connect the inlet end of the air guide pipe 9 to the high-pressure gas supply device so that the high-pressure gas fills the inside of the air guide pipe 9. When the filter cartridge 19 needs to be dusted, operate the pulse valve 10 to make the outlet end of the air guide pipe 9 form a passage, so that the high-pressure gas is discharged into the impact pipe 11 through the outlet end of the air guide pipe 9. The impact pipe 11 evenly discharges the high-pressure gas into the inside of the filter cartridge 19, thereby removing dust from the filter cartridge 19.

[0043] When high-pressure gas enters the impact tube 11, the gas inside the impact tube 11 will be discharged to the outside of the impact tube 11 through multiple vent holes 12. The gas discharged through the vent holes 12 will pass between two guide plates 13. The two guide plates 13 guide the gas discharged from the impact tube 11, so that after the gas is discharged from the impact tube 11, the downward angle of the gas flow forms an acute angle with the impact tube 11. This allows the gas to impact the dust on the outside of the filter cartridge 19 at a certain angle during the impact process inside the filter cartridge 19, thereby improving the dust removal effect of the pulse gas.

[0044] While high-pressure gas is introduced into the impact tube 11, the high-pressure gas will drive the piston 14 to move downward. The downward movement of the piston 14 will compress the spring at the bottom of the piston 14, causing the piston 14 to drive the impact hammer 15 to move downward until the impact hammer 15 contacts the bottom of the filter cartridge 19. The impact hammer 15 will impact the filter cartridge 19, thereby driving the filter cartridge 19 to vibrate as a whole. The impact of the impact hammer 15 on the filter cartridge 19 and the synergistic effect of the pulse gas will improve the dust removal effect of the filter cartridge 19.

[0045] After the dust on the outside of the filter cartridge 19 is cleaned off, it will fall to the bottom of the dust collection chamber 4. At this time, the dust at the bottom of the dust collection chamber 4 will enter the dust discharge pipe 16 through the dust discharge port 7. When the dust enters the dust discharge pipe 16, it will be blocked by the baffle 18. At this time, the motor that drives the baffle 18 to rotate is started, so that the part of the baffle 18 inside the dust discharge pipe 16 rotates downward. The baffle 18 blocks the dust from falling. At the same time, when the baffle 18 rotates, the dust can move downward inside the dust discharge pipe 16, thereby controlling the dust discharge rate inside the dust collection chamber 4 and preventing the dust discharge rate from being too fast and causing dust to be stirred up.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pulse backflushing dust removal device, comprising a housing (1) and an isolation plate (2), wherein the isolation plate (2) is fixedly connected to the inside of the housing (1), and the isolation plate (2) divides the inside of the housing (1) into upper and lower parts, wherein the part of the inside of the housing (1) located at the top of the isolation plate (2) is configured as a clean air chamber (3), and the part of the inside of the housing (1) located at the bottom of the isolation plate (2) is configured as a dust collection chamber (4); Its features are: The clean air chamber (3) is equipped with an air supply structure, and the air supply structure includes an air guide pipe (9) fixedly connected inside the clean air chamber (3). The air guide pipe (9) is equipped with four output ends and one input end, and each of the four output ends of the air guide pipe (9) is fixedly connected to an impact pipe (11), and each impact pipe (11) is located inside the dust collection chamber (4). The bottom of the housing (1) is provided with a control structure to control the dust discharge rate.

2. The pulse backflushing cleaning device according to claim 1, characterized in that: The air inlet pipe (9) extends through the housing (1) to its outer side, and four pulse valves (10) are fixedly connected to the top of the air inlet pipe (9) in a matrix distribution, and the four pulse valves (10) are aligned with the four output ends of the air inlet pipe (9).

3. The pulse backflushing cleaning device according to claim 1, characterized in that: The impact tube (11) has annularly distributed vent holes (12) on its outer side, and a guide plate (13) is fixedly connected to the outer side of the impact tube (11) in a vertically equidistant manner. The guide plate (13) is located at the upper and lower ends of each vent hole (12), and the guide plate (13) forms a downward acute angle with the outer side of the impact tube (11).

4. The pulse backflushing cleaning device according to claim 3, characterized in that: A piston (14) is slidably connected inside the lower end of the impact tube (11), and the lower end of the piston (14) is fixedly connected to the bottom of the impact tube (11). An impact hammer (15) is fixedly connected to the bottom of the piston (14), and a spring is fixedly connected between the bottom of the piston (14) and the bottom of the inner side of the impact tube (11). The outer side of the piston (14) is in contact with the inner side of the impact tube (11), and the impact hammer (15) is made of elastic material.

5. The pulse backflushing cleaning device according to claim 1, characterized in that: The outer side of the box (1) is provided with an air inlet (5) and an exhaust outlet (6), and the air inlet (5) is connected to the interior of the dust collection chamber (4), and the exhaust outlet (6) is connected to the interior of the clean air chamber (3). The bottom of the box (1) is provided with a dust discharge outlet (7), and the dust discharge outlet (7) is located at the bottom of the dust collection chamber (4).

6. The pulse backflushing cleaning device according to claim 5, characterized in that: The bottom of the dust outlet (7) is fixedly connected to a dust discharge pipe (16), and an installation chamber (17) is fixedly connected to one side of the dust discharge pipe (16). Inside the installation chamber (17), there are baffles (18) arranged in a ring. The outer side of the baffles (18) is in contact with the inner side of the dust discharge pipe (16), and the baffles (18) arranged in a ring are driven by a motor.

7. The pulse backflushing cleaning device according to claim 1, characterized in that: The isolation plate (2) has four mounting rings (8) arranged in a matrix inside, and each mounting ring (8) is aligned with each impact tube (11). The lower outer side of the mounting ring (8) is threaded with a filter cartridge (19), and the impact tube (11) is located inside the filter cartridge (19).

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