An industrial waste gas filtering purifier

Abstract

The application discloses an industrial waste gas filtering purifier and belongs to the technical field of purifiers. The purifier comprises an air inlet pipeline, a purification pipeline coaxially connected with the air inlet pipeline, a flow guide cone cylinder connected with the inner side of the purification pipeline through a main filter ring, the flow guide cone cylinder is coaxially installed on the inner side of the purification pipeline, and a valve is installed on the inner side of the flow guide cone cylinder; the small end of the flow guide cone cylinder is the front end and faces the side where the air inlet pipeline is located, the large end of the flow guide cone cylinder is connected with a cylindrical cylinder, an elastic filter is installed on the outer side of the flow guide cone cylinder, the elastic filter is filled in a filter channel separated between the flow guide cone cylinder and the inner wall of the purification pipeline, a pressing cylinder is installed on the front end of the flow guide cone cylinder, the pressure generated by waste gas can act on the end face of the pressing cylinder, the elastic supporting device and the elastic filter are compressed after the pressing cylinder moves, and the pressure of airflow passing through the elastic filter is increased. The application can adapt to the change of waste gas flow rate, guarantees the purification effect, and maintains high overall processing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of waste gas treatment technology, and specifically relates to an industrial waste gas filter and purifier. Background Technology

[0002] Industrial waste gas filtration and purification equipment, as a key device for air pollution control, has a history of technological development and application spanning decades. When the waste gas flow velocity is too high, the effective residence time of particulate matter or pollutant molecules carried by the airflow within the filter, adsorbent, or reaction zone is significantly shortened. Physical collision capture, chemical adsorption, or reaction conversion processes cannot proceed fully, leading to a decrease in purification efficiency. Conversely, if the waste gas flow velocity is too slow, the total amount of pollutants passing through the purifier per unit time decreases. Although the single-pass purification rate may be higher, the overall processing efficiency of the equipment remains low, failing to fully utilize its capacity. How to adjust the airflow conditions inside the purifier when waste gas flow fluctuates, so as to maintain a sufficiently long effective purification contact time to ensure purification effect while maintaining high overall processing efficiency, has become a key technical problem that existing fixed-structure purifiers urgently need to solve. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an industrial waste gas filter purifier that can adapt to changes in waste gas flow rate, ensuring purification effect while maintaining high overall processing efficiency.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention discloses an industrial waste gas filter and purifier, comprising an air inlet pipe and a purification pipe coaxially connected to the air inlet pipe. A guide cone is connected to the inner side of the purification pipe via a main filter ring. The guide cone is coaxially installed inside the purification pipe, and a valve is installed inside the guide cone. The small end of the guide cone is the front end, facing the side where the air inlet pipe is located. A cylindrical tube is connected to the large end of the guide cone. An elastic filter element is installed on the outer side of the guide cone, filling a filter channel between the guide cone and the inner wall of the purification pipe. A pressure cylinder is installed at the front end of the guide cone, connected to the purification pipe via an elastic support device. The pressure generated by the waste gas acts on the end face of the pressure cylinder. After the pressure cylinder moves, it compresses the elastic support device and the elastic filter element, increasing the pressure of the airflow passing through the elastic filter element.

[0006] Furthermore, the elastic filter element includes multiple fan-shaped filter blocks evenly arranged along the circumference of the guide cone. The fan-shaped filter blocks are made of elastic filter material. A support rod is fixedly installed on the inner side of the fan-shaped filter block, and an elastic clamp is installed on the support rod. One end of the elastic clamp is connected to the guide cone, and the fan-shaped filter block is tightly attached to the outer wall of the guide cone under the action of the elastic clamp.

[0007] Furthermore, a front stop is fixed at the front end of the flow guide cone, which is used to limit the front end of the elastic filter element. A rear stop is slidably installed at the rear end of the flow guide cone. The rear stop is connected to a first telescopic device. The rear stop is close to the rear end of the flow guide cone. An opening groove for the support rod to pass through is opened on the rear stop. A slider is fixed on the rear stop. A sliding groove that cooperates with the slider is opened on the outer wall of the flow guide cone.

[0008] Furthermore, the end of the pressure cylinder facing the elastic filter element forms an inclined surface.

[0009] Furthermore, the elastic support device includes a support spring, a step is formed on the inner side of the purification pipe for installing the support spring, and an annular platform for installing the support spring is formed at the end of the pressure cylinder away from the elastic filter element.

[0010] Furthermore, a second telescopic device is installed on the inner side of the intake pipe, and the output end of the second telescopic device is connected to the ring platform.

[0011] Furthermore, the valve is installed in the central channel formed at the center of the guide cone. A fixed filter plate and a movable filter plate are arranged at intervals in the central channel. The fixed filter plate has a first through hole, and the movable filter plate has a second through hole corresponding to the first through hole. A cylindrical filter block is installed between the fixed filter plate and the movable filter plate. The cylindrical filter block has a filter through hole, which is arranged along the axial direction of the guide cone. A third telescopic device is installed on the inner side of the central channel. The output end of the third telescopic device is fixedly connected to a turntable. The turntable is rotatably connected to the movable filter plate. The outer side of the movable filter plate is threadedly connected to the inner side of the central channel.

[0012] Furthermore, a pressure plate is fixed to the end of the cylindrical filter block away from the fixed filter plate, and the pressure plate rotates in conjunction with the movable filter plate.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention discloses an industrial waste gas filter purifier. By designing a flow guide cone inside the purification pipe, and with the cooperation of a pressure cylinder, the compression degree of the elastic filter element can be changed according to the waste gas flow rate. The change in compression degree can change the resistance of the waste gas passage, thereby adapting to the change in waste gas flow rate. While ensuring the purification effect, it can also maintain a high overall treatment efficiency. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0016] Figure 1 This is a schematic diagram of the structure of the device of the present invention;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of a fan-shaped filter block.

[0019] The following are the markings in the attached diagram: 1. Intake pipe; 2. Purification pipe; 3. Main filter ring; 4. Guide cone; 5. Valve; 6. Cylindrical cylinder; 7. Elastic filter element; 8. Pressure cylinder; 9. Elastic support device; 10. Fan-shaped filter block; 11. Support rod; 12. Elastic clamp; 13. Front stop block; 14. Rear stop block; 15. First telescopic device; 16. Sliding block; 17. Slide; 18. Inclined surface; 19. Step; 20. Ring platform; 21. Second telescopic device; 22. Central channel; 23. Fixed filter plate; 24. Movable filter plate; 25. First through hole; 26. Second through hole; 27. Columnar filter block; 28. Filter through hole; 29. ​​Third telescopic device; 30. Turntable; 31. Pressure plate. Detailed Implementation

[0020] like Figures 1-3 As shown, the present invention discloses an industrial waste gas filter and purifier, which includes an air inlet pipe 1 and a purification pipe 2 coaxially connected to the air inlet pipe 1. Waste gas enters through the air inlet pipe 1, and after being purified by the purification pipe 2, the waste gas is discharged from the rear end, thereby realizing the purification of industrial waste gas.

[0021] Unlike existing technologies, this invention features a guide cone 4 connected to the inner side of the purification pipe 2 via a main filter ring 3. The main filter ring 3 can utilize conventional filter materials or devices, effectively purifying a portion of the exhaust gas while exhibiting low air resistance. The guide cone 4 is coaxially mounted inside the purification pipe 2, and a valve 5 is installed on its inner side. This valve 5 allows the central channel 22 of the guide cone 4 to be opened or closed. When the exhaust gas level is low or absent, the valve 5 can be opened to accelerate gas flow.

[0022] The guide cone 4 has a small end facing the side of the intake pipe 1, and a cylindrical tube 6 connected to its large end. An elastic filter element 7 is installed on the outside of the guide cone 4. The elastic filter element 7 can be made of open-pore polyurethane foam; when compressed, the pores become smaller, increasing air resistance. The elastic filter element 7 fills the filter channel separating the guide cone 4 and the inner wall of the purification pipe 2. After passing through the filter channel, the exhaust gas is purified by the elastic filter element 7.

[0023] To adjust the compression of the elastic filter element 7 according to the flow rate of the exhaust gas, this invention installs a pressure cylinder 8 at the front end of the guide cone 4. The pressure cylinder 8 is connected to the purification pipe 2 via an elastic support device 9. The pressure generated by the exhaust gas acts on the end face of the pressure cylinder 8. When the pressure cylinder 8 moves, it compresses the elastic support device 9 and the elastic filter element 7, increasing the pressure of the airflow passing through the elastic filter element 7. Conversely, when the exhaust gas flow rate decreases, the pressure acting on the end face of the pressure cylinder 8 decreases. Supported by the elastic support device 9, the pressure cylinder 8 shifts away from the guide cone 4. At this point, the pressure on the elastic filter element 7 decreases, resulting in lower air resistance. Therefore, by designing a guide cone 4 inside the purification pipe 2, and with the cooperation of the pressure cylinder 8, this invention can adjust the compression of the elastic filter element 7 according to the exhaust gas flow rate. This change in compression alters the resistance to exhaust gas flow, thus adapting to changes in exhaust gas flow rate and maintaining high overall treatment efficiency while ensuring purification effectiveness.

[0024] In this embodiment, the elastic filter element 7 includes four fan-shaped filter blocks 10 evenly arranged around the circumference of the guide cone 4. These fan-shaped filter blocks 10 are detachably connected to the central guide cone 4 for easy replacement. Each fan-shaped filter block 10 is made of elastic filter material. A support rod 11 is fixedly installed on the inner side of each fan-shaped filter block 10, and an elastic clamp 12 is installed on the support rod 11. One end of the elastic clamp 12 is connected to the guide cone 4, and the fan-shaped filter block 10 is tightly attached to the outer wall of the guide cone 4 under the action of the elastic clamp 12. By dividing the elastic filter element 7 into multiple pieces, this invention not only facilitates replacement but also provides a certain deformation space around each individual fan-shaped filter block 10 when it is compressed, reducing the resistance caused by axial deformation and allowing for smoother movement of the pressure cylinder 8.

[0025] In this embodiment, a front stop 13 is fixed to the front end of the flow guide cone 4, which limits the front end of the elastic filter element 7. A rear stop 14 is slidably installed at the rear end of the flow guide cone 4, which can exert a squeezing effect. The rear stop 14 is connected to a first telescopic device 15. The rear stop 14 is in close contact with the rear end of the flow guide cone 4. An opening groove for the support rod 11 to pass through is opened on the rear stop 14. A slider 16 is fixed on the rear stop 14. A groove 17 that cooperates with the slider 16 is opened on the outer wall of the flow guide cone 4. By setting the first telescopic device 15, the compression amount of the elastic filter element 7 can be controlled in advance to meet the actual needs.

[0026] In this embodiment, the end of the pressure cylinder 8 facing the elastic filter element 7 has an inclined surface 18, which facilitates the compression of the elastic filter element 7.

[0027] In this embodiment, the elastic support device 9 includes a support spring, a step 19 for installing the support spring is formed on the inner side of the purification pipe 2, and an annular platform 20 for installing the support spring is formed at the end of the pressure cylinder 8 away from the elastic filter element 7.

[0028] In this embodiment, a second telescopic device 21 is installed inside the air intake pipe 1, and the output end of the second telescopic device 21 is connected to the ring platform 20. The second telescopic device 21 uses a linear motor. When the linear motor is unloaded, it does not act on the ring platform 20, and the sleeve on the ring platform 20 moves freely. When it is necessary to stabilize the flow rate of the exhaust gas, the linear motor is started, and the position of the ring platform 20 is fixed to prevent the device from shaking.

[0029] In this embodiment, valve 5 is installed in the central channel 22 formed at the center of the guide cone 4. A fixed filter plate 23 and a movable filter plate 24 are spaced apart within the central channel 22. The fixed filter plate 23 has a first through hole 25, and the movable filter plate 24 has a second through hole 26 corresponding to the first through hole 25. A cylindrical filter block 27 is installed between the fixed filter plate 23 and the movable filter plate 24. The cylindrical filter block 27 has a filter through hole 28, which is arranged along the axial direction of the guide cone 4. A third telescopic device 29 is installed on the inner side of the central channel 22. The output end of the third telescopic device 29 is fixedly connected to a turntable 30, which is rotatably connected to the movable filter plate 24. The outer side of the movable filter plate 24 is threadedly connected to the inner side of the central channel 22. This invention, by designing an additional central channel 22, is used to filter exhaust gas when the elastic filter element 7 fails, thereby reducing downtime.

[0030] When the projection of the second through hole 26 on the movable filter plate 24 onto the fixed filter plate 23 coincides with the first through hole 25, the filtration resistance is minimal, the maximum flow rate can be achieved, and the gas can be discharged easily. When the projection of the second through hole 26 on the movable filter plate 24 onto the fixed filter plate 23 is offset from the first through hole 25, the gas discharge speed can be increased.

[0031] In this embodiment, a pressure plate 31 is fixed to the end of the cylindrical filter block 27 away from the fixed filter plate 23. The pressure plate 31 rotates with the movable filter plate 24 to reduce the friction between the movable filter plates 24 and make the rotation of the movable filter plate 24 smoother.

Claims

1. An industrial waste gas filter and purifier, characterized in that: The system includes an intake pipe and a purification pipe coaxially connected to the intake pipe. A guide cone is connected to the inner side of the purification pipe via a main filter ring. The guide cone is coaxially installed inside the purification pipe, and a valve is installed inside the guide cone. The small end of the guide cone is the front end, facing the side where the intake pipe is located. A cylindrical tube is connected to the large end of the guide cone. An elastic filter element is installed on the outer side of the guide cone, filling the filter channel between the guide cone and the inner wall of the purification pipe. A pressure cylinder is installed at the front end of the guide cone, connected to the purification pipe via an elastic support device. The pressure generated by the exhaust gas acts on the end face of the pressure cylinder. When the pressure cylinder moves, it compresses the elastic support device and the elastic filter element, increasing the pressure of the airflow passing through the elastic filter element.

2. The industrial waste gas filter and purifier according to claim 1, characterized in that: The elastic filter element includes multiple fan-shaped filter blocks evenly arranged along the circumference of the flow guide cone. The fan-shaped filter blocks are made of elastic filter material. A support rod is fixedly installed on the inner side of the fan-shaped filter block. An elastic clamp is installed on the support rod. One end of the elastic clamp is connected to the flow guide cone. Under the action of the elastic clamp, the fan-shaped filter block is tightly attached to the outer wall of the flow guide cone.

3. An industrial waste gas filter and purifier according to claim 2, characterized in that: The front end of the flow guide cone is fixed with a front stop block, which is used to limit the front end of the elastic filter element. The rear end of the flow guide cone is slidably installed with a rear stop block, which is connected to a first telescopic device. The rear stop block is close to the rear end of the flow guide cone. An opening groove for the support rod to pass through is opened on the rear stop block. A slider is fixed on the rear stop block. A sliding groove that cooperates with the slider is opened on the outer wall of the flow guide cone.

4. An industrial waste gas filter and purifier according to claim 3, characterized in that: The end of the pressure cylinder facing the elastic filter element has an inclined surface.

5. An industrial waste gas filter and purifier according to claim 1, characterized in that: The elastic support device includes a support spring, a step is formed on the inside of the purification pipe for installing the support spring, and an annular platform for installing the support spring is formed at the end of the pressure cylinder away from the elastic filter element.

6. An industrial waste gas filter and purifier according to claim 5, characterized in that: A second telescopic device is installed on the inside of the air intake pipe, and the output end of the second telescopic device is connected to the ring platform.

7. An industrial waste gas filter and purifier according to any one of claims 1-6, characterized in that: The valve is installed in the central channel formed by the center of the guide cone. A fixed filter plate and a movable filter plate are arranged at intervals in the central channel. The fixed filter plate has a first through hole, and the movable filter plate has a second through hole corresponding to the first through hole. A cylindrical filter block is installed between the fixed filter plate and the movable filter plate. The cylindrical filter block has a filter through hole, which is arranged along the axial direction of the guide cone. A third telescopic device is installed on the inner side of the central channel. The output end of the third telescopic device is fixedly connected to a turntable. The turntable is rotatably connected to the movable filter plate. The outer side of the movable filter plate is threadedly connected to the inner side of the central channel.

8. An industrial waste gas filter and purifier according to claim 7, characterized in that: A pressure plate is fixed to the end of the cylindrical filter block away from the fixed filter plate, and the pressure plate rotates in conjunction with the movable filter plate.

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