Rotary long bag low pressure pulse dust collector

By using centrifugal separation and water mist sedimentation technology in a rotary long-bag low-pressure pulse dust collector, the problems of low screening efficiency for large dust particles and short filter bag life are solved, achieving efficient dust collection and environmental protection.

CN224474834UActive Publication Date: 2026-07-10HEBEI WUYANG ENVIRONMENTAL PROTECTION EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI WUYANG ENVIRONMENTAL PROTECTION EQUIP CO LTD
Filing Date
2025-07-10
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing long-bag low-pressure pulse dust collectors are less efficient at removing large dust particles, resulting in a reduced service life of the filter bags. Furthermore, their back-flushing efficiency is low, which can easily cause secondary pollution.

Method used

Adopting a rotary design, the motor drives the rotating shaft to drive the spiral blades for centrifugal separation. Large dust particles enter the collection box after contacting the inner wall of the dust collection box. Combined with the pressure sensor to control the fan to rotate in reverse and the water injection system, the dust is settled by water mist, avoiding damage to the filter bags and secondary pollution.

Benefits of technology

It improves the screening efficiency of large dust particles, extends the service life of the filter bags, and effectively prevents dust from re-entering the environment, reducing secondary pollution.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224474834U_ABST
    Figure CN224474834U_ABST
Patent Text Reader

Abstract

The utility model discloses a rotary long bag low pressure pulse dust collector relates to industrial dust removal technical field, including dust removal case no.
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Description

Technical Field

[0001] This utility model belongs to the field of industrial dust removal, specifically relating to a rotary long bag low-pressure pulse dust collector. Background Technology

[0002] In a long-bag low-pressure pulse dust collector, dust-laden gas enters through the inlet. As it passes through the ash hopper, some large dust particles are separated by inertial force and fall directly into the ash hopper. After passing through the ash hopper, the dust-laden gas enters the filter bag filtration area of ​​the housing. The gas passes through the filter bags, and the dust is trapped on the outer surface of the filter bags. The purified gas enters the upper housing through the filter bag openings and is discharged through the outlet.

[0003] Existing long-bag low-pressure pulse dust collectors remove large dust particles by gravity screening, which has low screening efficiency. This causes large dust particles to scratch the filter bags, reducing their service life. In addition, when there is a lot of dust in the filter bags, the back-blowing efficiency is not high, and the dust can easily overflow back into the working environment.

[0004] Therefore, we propose a rotary long-bag low-pressure pulse dust collector. Utility Model Content

[0005] This invention provides a rotary long-bag low-pressure pulse dust collector to solve the technical problems mentioned in the background section.

[0006] To solve the above-mentioned technical problems, this utility model provides a rotary long-bag low-pressure pulse dust collector, including a dust collection box one and a dust collection box two. An air pipe is provided between the dust collection box one and the dust collection box two, and the air pipe is arranged below the dust collection box one and the dust collection box two. An air inlet pipe is fixedly installed on the top of the dust collection box one. A fixing ring is fixedly installed on the outside of the dust collection box one, and a support leg is fixedly installed at the bottom of the fixing ring. Multiple support legs are provided and arranged in an array. A rotating component is fixedly installed on the inside of the dust collection box one and is electrically connected to an external power supply. A collection box is fixedly installed at the bottom of the dust collection box one and is detachably connected to the dust collection box one. The collection box and the dust collection box one are in communication. A pulse generator is fixedly installed on the outside of the dust collection box two and is electrically connected to an external power supply. A dust collection component is fixedly installed inside the dust collection box two and is electrically connected to an external power supply.

[0007] Preferably, the rotating component includes a motor, the motor is fixedly installed on the top of the dust collection box, the motor is electrically connected to an external power supply, a rotating shaft is fixedly installed at the output end of the motor, the rotating shaft is arranged inside the dust collection box, and a spiral blade is sleeved on the outside of the rotating shaft.

[0008] Preferably, the dust removal component includes a fan, the fan is fixedly installed on the top of the dust removal box two, the fan is electrically connected to an external power supply, the fan is connected to the dust removal box two, a partition is fixedly installed inside the dust removal box two, a limit hole is opened on the partition, a plurality of limit holes are provided in the limit hole, the plurality of limit holes are arranged in an array, and a long bag filter element is provided in each limit hole.

[0009] Preferably, the long bag filter element includes a base plate, and a limiting rod is fixedly installed on the top of the base plate. Multiple limiting rods are provided and arranged in an array. A cloth bag is sleeved on the outside of the limiting rod, with the open end of the cloth bag facing downward and the top of the cloth bag being engaged in the limiting hole.

[0010] Preferably, a pressure sensor is fixedly installed on the inner wall of the dust collector box 2. The pressure sensor is provided in multiple ways, and the multiple pressure sensors are arranged symmetrically and arranged above the dust collector box 2.

[0011] Preferably, a water storage tank is provided inside the fixing ring. The water storage tank is annular. A capillary hole is provided between the inner wall of the water storage tank and the outer side of the dust collector. The capillary hole penetrates the dust collector. A water injection pipe is fixedly installed on the top of the fixing ring. A solenoid valve is fixedly installed on the water injection pipe, and the water injection pipe is fixedly connected to an external water source.

[0012] This invention has the following advantages over the prior art:

[0013] 1. This utility model discloses a rotary long-bag low-pressure pulse dust collector. In use, the fan circuit is first started, and the fan draws out the gas inside the dust collection box two, causing the external dust gas to enter the dust collection box one through the air inlet pipe. The motor circuit is then started, and the motor drives the rotating shaft to rotate. The rotating shaft drives the spiral blades to rotate, causing the gas entering the dust collection box one to rotate centrifugally. This causes large dust particles to come into contact with the inner wall of the dust collection box and enter the collection box. Compared with the traditional gravity screening method, the screening is more thorough, avoiding damage to the filter bags caused by large dust particles and improving the service life of the filter bags.

[0014] 2. This utility model discloses a rotary long-bag low-pressure pulse dust collector. A pressure sensor is installed inside the dust collection chamber two. When the pressure sensor detects excessive pressure, it activates the fan to rotate in reverse. Dust, under the action of the wind, falls along the filter bags and enters the dust collection chamber one through the air pipe. A solenoid valve opens the water injection pipe, allowing water to enter the water storage tank. This increases the water pressure in the storage tank, causing the water to enter the dust collection chamber one through capillary pores in a mist-like form. This mist then combines with the dust in the dust collection chamber one, causing the dust to quickly settle into the collection box, preventing secondary pollution of the environment caused by dust entering through the air inlet pipe. Attached Figure Description

[0015] Figure 1This is a structural diagram of a rotary long-bag low-pressure pulse dust collector according to the present invention;

[0016] Figure 2 This is a structural diagram of the dust collection box in a rotary long bag low-pressure pulse dust collector according to this utility model;

[0017] Figure 3 This is a structural diagram of the fixing ring in a rotary long bag low-pressure pulse dust collector according to this utility model;

[0018] Figure 4 This is a structural diagram of the dust collection box 2 in a rotary long bag low-pressure pulse dust collector according to this utility model;

[0019] Numbered in the diagram: 1. Dust collector box one; 2. Dust collector box two; 3. Air inlet pipe; 4. Rotating assembly; 5. Dust collection assembly; 6. Pulse generator; 7. Air pipe; 8. Collection box; 9. Support leg; 10. Fixing ring; 11. Motor; 12. Spiral blade; 13. Rotating shaft; 14. Capillary pore; 15. Water storage tank; 16. Solenoid valve; 17. Water injection pipe; 18. Pressure sensor; 19. Fan; 20. Limiting hole; 21. Partition plate; 22. Filter bag; 23. Limiting rod; 24. Base plate. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0021] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0022] Please see Figure 1-4This utility model provides a technical solution: a rotary long-bag low-pressure pulse dust collector, including a dust collector box 1 and a dust collector box 2. An air pipe 7 is provided between the dust collector box 1 and the dust collector box 2, and the air pipe 7 is arranged below the dust collector box 1 and the dust collector box 2. An air inlet pipe 3 is fixedly installed on the top of the dust collector box 1. A fixing ring 10 is fixedly installed on the outside of the dust collector box 1. A support leg 9 is fixedly installed at the bottom of the fixing ring 10. Multiple support legs 9 are arranged in an array. A rotating component 4 is fixedly installed on the inside of the dust collector box 1. The rotating component 4 is electrically connected to an external power supply. A collection box 8 is fixedly installed at the bottom of the dust collector box. The collection box 8 is detachably connected to the dust collector box 1 and communicates with the dust collector box 1. A pulse generator 6 is fixedly installed on the outside of the dust collector box 2. The pulse generator 6 is electrically connected to an external power supply. A dust removal component 5 is fixedly installed inside the dust collector box 2. The dust removal component 5 is electrically connected to an external power supply.

[0023] Furthermore, the rotating assembly 4 includes a motor 11, which is fixedly installed on the top of the dust collection box 1. The motor 11 is electrically connected to an external power supply. A rotating shaft 13 is fixedly installed at the output end of the motor 11. The rotating shaft 13 is arranged inside the dust collection box 1, and a spiral blade 12 is sleeved on the outside of the rotating shaft 13.

[0024] Furthermore, the dust removal component 5 includes a fan 19, which is fixedly installed on the top of the dust removal box 2. The fan 19 is electrically connected to an external power supply and is connected to the dust removal box 2. A partition 21 is fixedly installed inside the dust removal box 2. Limiting holes 20 are provided on the partition 21. Multiple limiting holes 20 are arranged in an array, and each limiting hole 20 is provided with a long bag filter element.

[0025] Furthermore, the long bag filter element includes a base plate 24, and a limiting rod 23 is fixedly installed on the top of the base plate 24. Multiple limiting rods 23 are provided and arranged in an array. A cloth bag 22 is sleeved on the outside of the limiting rod 23, with the open end of the cloth bag 22 facing downward and the top of the cloth bag 22 being engaged in the limiting hole 20.

[0026] Furthermore, a pressure sensor 18 is fixedly installed on the inner wall of the dust collector 2. Multiple pressure sensors 18 are provided and arranged symmetrically, and the pressure sensors 18 are arranged above the dust collector 2.

[0027] Furthermore, a water storage tank 15 is provided inside the fixing ring 10. The water storage tank 15 is annular. A capillary hole 14 is provided between the inner wall of the water storage tank 15 and the outer side of the dust collector 1. The capillary hole 14 penetrates the dust collector 1. A water injection pipe 17 is fixedly installed on the top of the fixing ring 10. A solenoid valve 16 is fixedly installed on the water injection pipe 17, and the water injection pipe 17 is fixedly connected to an external water source.

[0028] Working principle:

[0029] In operation, first, the fan 19 circuit is activated. The fan 19 draws out the gas inside the dust collector 2, causing external dust and gas to enter the dust collector 1 through the air inlet pipe 3. Then, the motor 11 circuit is activated, and the motor 11 drives the rotating shaft 13 to rotate. The rotating shaft 13 drives the spiral blades 12 to rotate, causing the gas entering the dust collector 1 to rotate centrifugally. This causes large dust particles to come into contact with the inner wall of the dust collector and enter the collection box 8. Compared with the traditional gravity screening method, the screening is more thorough, avoiding damage to the filter bag 22 caused by large dust particles and improving the service life of the filter bag 22. An internal pressure sensor 18 is installed. When the pressure sensor 18 detects excessive pressure, the fan 19 is started to rotate in reverse. Dust is dislodged along the filter bag 22 by the wind and enters the dust collection box 1 through the air pipe 7. The water injection pipe 17 is opened by the solenoid valve 16, and water enters the water storage tank 15 through the water injection pipe 17, which increases the water pressure in the water storage tank 15. The water enters the dust collection box 1 through the capillary pores 14 and appears as a mist. It then combines with the dust in the dust collection box 1, causing the dust to settle quickly into the collection box 8, thus preventing the dust from causing secondary pollution to the environment through the air inlet pipe 3.

[0030] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A rotary long-bag low-pressure pulse dust collector, comprising a dust collection box one (1) and a dust collection box two (2), characterized in that: An air pipe (7) is provided between the dust collector 1 (1) and the dust collector 2 (2). The air pipe (7) is arranged below the dust collector 1 (1) and the dust collector 2 (2). An air inlet pipe (3) is fixedly installed on the top of the dust collector 1 (1). A fixing ring (10) is fixedly installed on the outside of the dust collector 1 (1). A support leg (9) is fixedly installed at the bottom of the fixing ring (10). There are multiple support legs (9), which are arranged in an array. A rotating... Component (4), the rotating component (4) is electrically connected to an external power supply, a collection box (8) is fixedly installed at the bottom of the dust collection box, the collection box (8) is detachably connected to the dust collection box one (1), the collection box (8) and the dust collection box one (1) are connected, a pulse generator (6) is fixedly installed on the outside of the dust collection box two (2), the pulse generator (6) is electrically connected to an external power supply, a dust collection component (5) is fixedly installed inside the dust collection box two (2), the dust collection component (5) is electrically connected to an external power supply.

2. The rotary long-bag low-pressure pulse dust collector according to claim 1, characterized in that, The rotating assembly (4) includes a motor (11). The motor (11) is fixedly installed on the top of the dust collection box (1). The motor (11) is electrically connected to an external power supply. A rotating shaft (13) is fixedly installed at the output end of the motor (11). The rotating shaft (13) is arranged inside the dust collection box (1). A spiral blade (12) is sleeved on the outside of the rotating shaft (13).

3. A rotary long-bag low-pressure pulse dust collector according to claim 1, characterized in that, The dust removal component (5) includes a fan (19). The fan (19) is fixedly installed on the top of the dust removal box (2). The fan (19) is electrically connected to an external power supply. The fan (19) is connected to the dust removal box (2). A partition (21) is fixedly installed inside the dust removal box (2). A limiting hole (20) is opened on the partition (21). Multiple limiting holes (20) are provided in the limiting hole (20). The multiple limiting holes (20) are arranged in an array. Each limiting hole (20) is provided with a long bag filter element.

4. A rotary long-bag low-pressure pulse dust collector according to claim 3, characterized in that, The long bag filter includes a base plate (24), and a limiting rod (23) is fixedly installed on the top of the base plate (24). There are multiple limiting rods (23), and the multiple limiting rods (23) are arranged in an array. A cloth bag (22) is sleeved on the outside of the limiting rod (23). The opening end of the cloth bag (22) faces downward, and the top of the cloth bag (22) is engaged in the limiting hole (20).

5. A rotary long-bag low-pressure pulse dust collector according to claim 1, characterized in that, Pressure sensors (18) are fixedly installed on the inner wall of the dust collector box (2). Multiple pressure sensors (18) are provided and arranged symmetrically. The pressure sensors (18) are arranged above the dust collector box (2).

6. A rotary long-bag low-pressure pulse dust collector according to claim 1, characterized in that, A water storage tank (15) is provided inside the fixed ring (10). The water storage tank (15) is annular. A capillary hole (14) is provided between the inner wall of the water storage tank (15) and the outer side of the dust collector (1). The capillary hole (14) penetrates the dust collector (1). A water injection pipe (17) is fixedly installed on the top of the fixed ring (10). A solenoid valve (16) is fixedly installed on the water injection pipe (17), and the water injection pipe (17) is fixedly connected to an external water source.