Self-cleaning electric bag dust collection filter bag

Abstract

The utility model relates to the technical field of electric bag dust removal filter bag, especially to a self -cleaning type electric bag dust removal filter bag, a self -cleaning type electric bag dust removal filter bag, including dust removal filter bag, support frame, motor, rotation axis and cleaning brush, dust removal filter bag top fixedly connected with support frame, support frame top fixedly connected with motor, motor bottom's output shaft fixedly connected with rotation axis, rotation axis front and back both sides all fixedly connected with cleaning brush. The utility model discloses through the physical brush of cleaning brush to filter bag inner wall carries out the brush sweep, combines the high -speed airflow of air -jet nozzle and sprays, realizes double dust removal mechanism, effectively removes the dust that sticks, avoids filter bag blockage, significantly promotes the filtration efficiency and system operation stability.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic precipitator filter bag technology, and in particular to a self-cleaning electrostatic precipitator filter bag. Background Technology

[0002] With the rapid development of my country's industrialization and the continuous improvement of environmental protection requirements, flue gas dust removal has become a crucial aspect of air pollution control. Electrostatic precipitators and baghouse dust collectors, as a new type of high-efficiency dust removal equipment that combines the advantages of electrostatic precipitators and baghouse dust collectors, are widely used in coal-fired power plants, steel metallurgy, cement and building materials industries. Among them, the filter bag, as the core filtration element of the electrostatic precipitator and baghouse dust collector, directly affects the dust removal efficiency, operating resistance, and maintenance costs of the entire dust removal system. Currently, commonly used filter bags in industry are mostly ordinary needle-punched felt or membrane filter media. Although these can meet basic dust removal needs to a certain extent, traditional filter bags rely on pulse-jet cleaning systems for periodic cleaning. However, due to limited cleaning power, some dust easily remains on the surface of the filter bag or penetrates deep into the filter media, leading to increased filtration resistance, decreased air permeability, and in severe cases, even filter bag damage or system shutdown.

[0003] Therefore, a self-cleaning electrostatic precipitator filter bag needs to be designed to solve the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of low dust removal efficiency and easy dust accumulation and blockage, this utility model provides a self-cleaning electrostatic precipitator filter bag.

[0005] The technical solution of this utility model is as follows: a self-cleaning electrostatic precipitator filter bag, comprising a filter bag, a support frame, a motor, a rotating shaft, and a cleaning brush. The support frame is fixedly connected to the top of the filter bag, the motor is fixedly connected to the top of the support frame, the output shaft at the bottom of the motor is fixedly connected to the rotating shaft, and the cleaning brushes are fixedly connected to both the front and rear sides of the rotating shaft.

[0006] In a preferred embodiment of the present invention, a frame is also included, with the frame fixedly connected to the bottom of the support frame, and the frame is located inside the dust collector filter bag.

[0007] In a preferred embodiment of the present invention, the device further includes a cylinder, an air supply pipe, and a connecting plate. The cylinder is fixedly connected to the upper part of the rotating shaft, the air supply pipe is fixedly connected to the rear side of the support frame, and the connecting plate is fixedly connected to the bottom of the air supply pipe. The connecting plate is rotatably connected to the top of the cylinder.

[0008] In a preferred embodiment of the present invention, a connecting pipe and an air jet nozzle are also included. The connecting pipes are fixedly connected to both the left and right sides of the bottom of the cylinder, and multiple air jet nozzles are fixedly connected to the ends of the two connecting pipes away from the center.

[0009] In a preferred embodiment of the present invention, a support block, a top block, and a spring are also included. Multiple support blocks are fixedly connected to both sides of the rotating shaft. Each support block is slidably connected to a top block at its end away from the center. A spring connects the top block and the support block.

[0010] In a preferred embodiment of this utility model, the edge of the top block away from the center end is arc-shaped.

[0011] The beneficial effects of this utility model are as follows: 1. This utility model uses a cleaning brush to physically brush the inner wall of the filter bag, combined with the high-speed airflow of the jet nozzle to achieve a dual dust removal mechanism, effectively removing attached dust, avoiding filter bag blockage, and significantly improving filtration efficiency and system operation stability.

[0012] 2. This utility model effectively loosens highly adhesive dust by having the top block push against the inner wall of the filter bag during rotation; combined with the spring reset structure, the top block automatically resets after disengaging from the frame and pushes against the inner wall of the filter bag again, realizing periodic vibration cleaning and further improving the cleaning effect.

[0013] 3. This utility model uses a rotating shaft to drive the cleaning brush, air nozzle and top block to rotate synchronously, so that the cleaning action covers the entire inner wall of the filter bag, ensuring uniform dust removal, avoiding local dust accumulation, and improving the overall cleaning effect and service life of the filter bag.

[0014] 4. This utility model features an arc-shaped edge design on the top block, which automatically retracts towards the center when it encounters the frame during rotation, compressing the spring. After detaching from the frame, the spring returns to its original position, and the top block pushes against the inner wall of the filter bag again, forming a continuous vibration cleaning action. No additional control mechanism is required, making the structure simple and efficient. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional sectional view of the dust collector filter bag, frame, and support frame of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the support frame, motor, and rotating shaft of this utility model.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the components of this utility model, including the cylinder, connecting plate, and gas delivery pipe.

[0019] Figure 5 This is a three-dimensional structural diagram of the support block, top block, and spring components of this utility model.

[0020] The components in the attached diagram are labeled as follows: 1-Dust filter bag, 2-Frame, 3-Support frame, 4-Motor, 5-Rotating shaft, 6-Cleaning brush, 7-Connecting pipe, 8-Air nozzle, 9-Cylinder body, 10-Connecting plate, 11-Air supply pipe, 12-Support block, 13-Top block, 14-Spring. Detailed Implementation

[0021] Example: A self-cleaning electrostatic precipitator filter bag, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a dust filter bag 1, a support frame 3, a motor 4, a rotating shaft 5, and a cleaning brush 6. The top of the dust filter bag 1 is fixedly connected to the support frame 3, and the top of the support frame 3 is fixedly connected to the motor 4 by bolts. The output shaft at the bottom of the motor 4 is fixedly connected to the rotating shaft 5, and the cleaning brush 6 is fixedly connected to both the front and rear sides of the rotating shaft 5.

[0022] like Figure 2 As shown, it also includes a frame 2, and the support frame 3 is fixedly connected to the bottom of the frame 2. The frame 2 is located inside the dust filter bag 1.

[0023] like Figure 2 , Figure 3 and Figure 4 As shown, it also includes a cylinder 9, a gas supply pipe 11, and a connecting plate 10. The cylinder 9 is welded to the upper part of the rotating shaft 5. The gas supply pipe 11 is fixedly connected to the rear side of the support frame 3. The connecting plate 10 is fixedly connected to the bottom of the gas supply pipe 11. The connecting plate 10 is rotatably connected to the top of the cylinder 9.

[0024] like Figure 2 , Figure 3 and Figure 4 As shown, it also includes a connecting pipe 7 and a jet nozzle 8. The bottom left and right sides of the cylinder 9 are fixedly connected to the connecting pipe 7, and multiple jet nozzles 8 are fixedly connected to the two connecting pipes 7 away from the center.

[0025] like Figure 2 and Figure 5 As shown, it also includes a support block 12, a top block 13 and a spring 14. Multiple support blocks 12 are fixedly connected to both sides of the rotating shaft 5. Each support block 12 is slidably connected to a top block 13 at its far end. The edge of the top block 13 away from the center is arc-shaped. A spring 14 connects the top block 13 and the support block 12.

[0026] When the dust collector filter bag 1 of this device needs to be self-cleaned, first start the motor 4 to drive the rotating shaft 5 to rotate. The cleaning brush 6 rotates synchronously with the rotating shaft 5 to mechanically brush the inner wall of the dust collector filter bag 1 and remove the attached dust. During the rotation of the rotating shaft 5, the top block 13 pushes against the inner wall of the dust collector filter bag 1, causing the stubborn dust to loosen and fall off. Because the edge of the top block 13 is arc-shaped, when the rotating shaft 5 rotates, the top block 13 will move closer to the center end when it encounters the frame 2, which will drive the spring 14 to compress. After the top block 13 is separated from the frame 2, the spring 14 will drive the top block 13 to return to its original position and push against the dust collector filter bag again. The inner wall of the filter bag 1 vibrates repeatedly to further loosen the dust and improve cleaning efficiency. The frame 2 is located inside the filter bag 1 and supports the filter bag to prevent it from collapsing. Then, the jet nozzle 8 is activated, and the gas enters the connecting plate 10 and the cylinder 9 through the air supply pipe 11, and is then transported to the jet nozzle 8 through the connecting pipe 7. During the rotation, the jet nozzle 8 sprays a high-speed airflow onto the inner wall of the filter bag to further blow off the residual dust, prevent the filter bag from clogging, and improve the filtration efficiency and operational stability. When the self-cleaning operation of the filter bag 1 of this device is not required, the motor 4 and the jet nozzle 8 can be turned off.

Claims

1. A self-cleaning electrostatic precipitator filter bag, characterized in that: It includes a dust filter bag (1), a support frame (3), a motor (4), a rotating shaft (5), and a cleaning brush (6). The top of the dust filter bag (1) is fixedly connected to the support frame (3), the top of the support frame (3) is fixedly connected to the motor (4), the output shaft at the bottom of the motor (4) is fixedly connected to the rotating shaft (5), and the front and rear sides of the rotating shaft (5) are fixedly connected to the cleaning brush (6).

2. The self-cleaning electrostatic precipitator filter bag as described in claim 1, characterized in that: It also includes a frame (2), and the bottom of the support frame (3) is fixedly connected to the frame (2), and the frame (2) is located inside the dust filter bag (1).

3. The self-cleaning electrostatic precipitator filter bag as described in claim 2, characterized in that: It also includes a cylinder (9), a gas supply pipe (11) and a connecting plate (10). The cylinder (9) is fixedly connected to the upper part of the rotating shaft (5), the gas supply pipe (11) is fixedly connected to the rear side of the support frame (3), the connecting plate (10) is fixedly connected to the bottom of the gas supply pipe (11), and the connecting plate (10) is rotatably connected to the top of the cylinder (9).

4. The self-cleaning electrostatic precipitator filter bag as described in claim 3, characterized in that: It also includes connecting pipes (7) and jet nozzles (8). Connecting pipes (7) are fixedly connected to the bottom left and right sides of the cylinder (9), and multiple jet nozzles (8) are fixedly connected to the ends of the two connecting pipes (7) away from the center.

5. The self-cleaning electrostatic precipitator filter bag as described in claim 4, characterized in that: It also includes a support block (12), a top block (13) and a spring (14). Multiple support blocks (12) are fixedly connected to both sides of the rotating shaft (5). Each support block (12) is slidably connected to a top block (13) at the end away from the center. A spring (14) is connected between the top block (13) and the support block (12).

6. The self-cleaning electrostatic precipitator filter bag as described in claim 5, characterized in that: The top block (13) is arc-shaped at the edge away from the center.

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