Waste gas treatment device with protection structure

The problem of filter blockage in the exhaust gas treatment device was solved by using a rotating drum and solenoid valve switching system. This system enables automatic cleaning of the filter plates and control of airflow, extends equipment life, and improves the protective performance of the exhaust gas treatment device.

CN224071467UActive Publication Date: 2026-04-03KUNSHAN SHIYUAN ENVIRONMENTAL PROTECTION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

During prolonged use, the filter mechanism of the exhaust gas treatment device is prone to clogging, which can affect airflow, increase pressure, and potentially damage the filter mechanism or cause equipment failure.

Method used

It adopts a rotating cylinder structure and a solenoid valve switching system, combined with an air pressure sensor and an electric push rod scraper, to achieve rotational cleaning and backwashing of the filter plates. It uses centrifugal force to remove particulate matter, reducing the risk of clogging, and monitors air pressure through an air pressure sensor to automatically switch the use of filter plates.

Benefits of technology

It effectively avoids high-pressure damage to the filter plate, maintains the normal operation of the fan, extends the equipment life, and improves filtration efficiency and device protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waste gas treatment device with a protective structure, which comprises a cylinder, the top and the bottom of the cylinder are respectively communicated with a gas inlet pipe and a gas outlet pipe, a fan is mounted on the gas inlet pipe, the inner wall of the cylinder is rotatably connected with a rotating cylinder, the bottom of the cylinder is fixedly connected with a motor, and the motor is fixedly connected with a gas outlet pipe. An output shaft of the motor penetrates through the cylinder body and is fixedly connected with the rotating cylinder, two cavities are formed in the rotating cylinder, the inner walls of the two cavities are both communicated with two guide pipes, the inner walls of the two cavities are both fixedly connected with filter plates, and the inner walls of the two cavities are both provided with two through holes. According to the waste gas treatment device, the condition of high pressure of the barrel body for a long time can be effectively avoided, the condition of damage to the filter plate is reduced, the fan can be kept in a normal working state, the condition of high-load operation of the fan is avoided, the service life of the fan is prolonged, and the effect of effectively protecting the waste gas treatment device is achieved.
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Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment devices, and specifically to a waste gas treatment device with a protective structure. Background Technology

[0002] A waste gas treatment device with a protective structure refers to a system that adds safety protection design to conventional waste gas treatment equipment to prevent damage to the device during the waste gas treatment process.

[0003] When the exhaust gas treatment device is in use, its internal filter mechanism filters particulate matter in the exhaust gas. However, during long-term use, the filter mechanism may become clogged, which will affect airflow and gradually increase the internal pressure of the device. This can easily lead to damage to the filter mechanism or malfunction of the exhaust gas input equipment. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a waste gas treatment device with a protective structure to solve the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution;

[0006] A waste gas treatment device with a protective structure includes a cylindrical body. An inlet pipe and an outlet pipe are respectively connected to the top and bottom of the cylindrical body. A fan is installed on the inlet pipe. A rotating cylinder is rotatably connected to the inner wall of the cylindrical body. A motor is fixedly connected to the bottom of the cylindrical body. The output shaft of the motor passes through the cylindrical body and is fixedly connected to the rotating cylinder. Two cavities are formed inside the rotating cylinder. Two conduits are connected to the inner walls of each of the two cavities. Filter plates are fixedly connected to the inner walls of each of the two cavities. Two through holes are formed in the inner walls of each of the two cavities. Adjacent through holes... The holes are located above and below the filter plate. A box is fixedly connected to the left side of the cylinder. A partition plate is slidably connected to the front of the box plate. A groove is opened at the bottom of the partition plate. A filter cylinder is fixedly connected to the inner wall of the groove plate. Two air pipes are fixedly connected to the cylinder. The right ends of the two air pipes are aligned with the two through holes. The left ends of the two air pipes pass through the box plate and extend to the top and bottom of the partition plate. Solenoid valves are installed on the two air pipes and the four guide pipes. An air pump is installed on the bottom air pipe.

[0007] As a further description of the above technical solution:

[0008] The two filter plates are inclined upward on opposite sides, and the bottom air tube is arranged in a Z-shape.

[0009] As a further description of the above technical solution:

[0010] The front of the housing is fixedly connected to a controller that controls the motor, solenoid valve, and air pump.

[0011] As a further description of the above technical solution:

[0012] A pressure sensor is installed on the inner wall of the cylinder, and the pressure sensor is located above the rotating cylinder. The output end of the pressure sensor is connected to the controller signal.

[0013] As a further description of the above technical solution:

[0014] Two sealing rings are fixedly connected to the inner wall of the cylinder, and the opposite sides of the two sealing rings are rotatably connected to the rotating cylinder.

[0015] As a further description of the above technical solution:

[0016] An electric push rod is inserted through the top of the housing and fixedly connected thereto. The telescopic end of the electric push rod is fixedly connected to a scraper adapted to the filter cartridge.

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] This solution can effectively prevent the cylinder from being subjected to high pressure for a long time, thereby reducing the damage to the filter plate. It can also keep the fan in normal working condition, avoid the fan from operating under high load, extend the service life of the fan, and achieve effective protection for the waste gas treatment device. Attached Figure Description

[0019] Figure 1 One of the perspective views of this utility model;

[0020] Figure 2 This is a second perspective view of the present utility model;

[0021] Figure 3 This is a cross-sectional view of the present invention;

[0022] Figure 4 This is a diagram showing the positional relationship between the partition plate and the filter cylinder of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Cylinder; 2. Inlet pipe; 3. Outlet pipe; 4. Rotating cylinder; 5. Cavity; 6. Guide tube; 7. Filter plate; 8. Through hole; 9. Box; 10. Partition plate; 11. Groove; 12. Filter cylinder; 13. Air pipe; 14. Solenoid valve; 15. Air pump; 16. Controller; 17. Air pressure sensor; 18. Sealing ring; 19. Electric push rod; 20. Scraper; 21. Fan; 22. Motor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0026] Please see Figures 1-4 In this utility model, a waste gas treatment device with a protective structure includes a cylindrical body 1. An inlet pipe 2 and an outlet pipe 3 are respectively connected to the top and bottom of the cylindrical body 1. A fan 21 is installed on the inlet pipe 2. A rotating cylinder 4 is rotatably connected to the inner wall of the cylindrical body 1. A motor 22 is fixedly connected to the bottom of the cylindrical body 1. The output shaft of the motor 22 passes through the cylindrical body 1 and is fixedly connected to the rotating cylinder 4. Two cavities 5 are opened inside the rotating cylinder 4. Two conduits 6 are connected to the inner walls of both cavities 5. Filter plates 7 are fixedly connected to the inner walls of both cavities 5. Two through holes 8 are opened on the inner walls of both cavities 5. Adjacent through holes 8... Located above and below the filter plate 7, respectively, a box 9 is fixedly connected to the left side of the cylinder 1. A partition 10 is slidably connected to the front of the box 9. A groove 11 is opened at the bottom of the partition 10. A filter cylinder 12 is fixedly connected to the inner wall of the groove 11. Two air pipes 13 are fixedly connected to the cylinder 1. The right ends of the two air pipes 13 are aligned with the two through holes 8 respectively. The left ends of the two air pipes 13 pass through the box 9 and extend to the top and bottom of the partition 10. Solenoid valves 14 are installed on the two air pipes 13 and the four conduits 6. An air pump 15 is installed on the bottom air pipe 13.

[0027] In this invention, during use, firstly, the solenoid valves 14 on the two conduits 6 inside one side cavity 5 are opened, while the remaining solenoid valves 14 are closed. Then, the fan 21 is turned on to draw the exhaust gas into the cylinder 1 through the inlet pipe 2. The exhaust gas then enters the corresponding cavity 5 through the opened conduit 6. The exhaust gas then passes through the filter plate 7, which filters the particulate matter in the exhaust gas. The treated exhaust gas is discharged from the cavity 5 to the bottom of the cylinder 1 through the bottom conduit 6, and then discharged from the outlet pipe 3, thus completing the purpose of exhaust gas treatment.

[0028] During the process, the user turns on the motor 22 to drive the rotating drum 4 to rotate. At this time, the rotating drum 4 can make the exhaust gas contact the surface of the filter plate 7 more evenly, avoid local overload or blockage, improve the overall filtration efficiency, and the centrifugal force generated by the rotation may help to peel off the particles attached to the filter plate 7, reduce the risk of blockage. At the same time, compared with static filtration, the long-term impact of exhaust gas on the fixed area will cause local wear of the filter plate 7. Rotation can disperse the impact force and extend the service life of the filter plate 7.

[0029] After a period of use, a large amount of particulate matter will adhere to the surface of the filter plate 7, causing some blockage. The air pressure at the top of the cylinder 1 will rise, and the load on the fan 21 will increase. At this time, all solenoid valves 14 will close. Then, the user will open the solenoid valve 14 on the duct 6 in another chamber 5. The exhaust gas will flow into the chamber 5 where the unused filter plate 7 is located. The unused filter plate 7 will replace the filter plate 7 on the other side, thereby ensuring the airflow speed, reducing the pressure inside the cylinder 1, reducing the load on the fan 21, and preventing the filter plate 7 from being damaged due to air pressure blockage.

[0030] After the exhaust gas is treated, the user moves the cavity 5 containing the filter plate 7 to one side of the housing 9. At this time, the two through holes 8 on the cavity 5 will be aligned with the two air pipes 13 respectively. Then, all the solenoid valves 14 are closed, and the solenoid valves 14 on the two air pipes 13 and the air pump 15 on the bottom air pipe 13 are turned on. The air pump 15 will draw air from the housing 9 into the cavity 5 through the bottom air pipe 13 and the through hole 8. The air will then flow back from the filter plate 7 through the top through hole 8 and the air pipe 13 back into the housing 9, thereby achieving air circulation. During the circulation process, the air will continuously backwash and clean the filter plate 7, thus improving the cleaning effect of the filter plate 7. The backwashed particles will be collected by the filter cartridge 12. The user can periodically remove the partition 10 to clean the particles in the filter cartridge 12.

[0031] Please see Figure 3 Among them, the two filter plates 7 are inclined upward on opposite sides, and the bottom air pipe 13 is arranged in a Z-shape.

[0032] In this invention, the inclined filter plate 7 can use gravity to guide the peeled particles to slide down the inclined surface, reducing the residue that is not removed by the centrifugal force of rotation, reducing the risk of clogging, and further improving the practicality of the device.

[0033] Please see Figure 1 and 2 The front of the housing 9 is fixedly connected to a controller 16 that controls the opening and closing of the motor 22, the solenoid valve 14 and the air pump 15. The controller 16 makes it easy for the user to control the opening and closing of the motor 22, the solenoid valve 14 and the air pump 15.

[0034] Please see Figure 3 In this process, a pressure sensor 17 is installed on the inner wall of the cylinder 1. The pressure sensor 17 is located above the rotating cylinder 4, and the output end of the pressure sensor 17 is connected to the controller 16.

[0035] In this invention, the air pressure sensor 17 can detect the air pressure at the top of the cylinder 1. When the filter plate 7 is blocked, the air flow is obstructed and air accumulates at the top of the cylinder 1, which increases the air pressure at the top of the cylinder 1. By observing the value detected by the air pressure sensor 17, the condition of the filter plate 7 can be determined, making it easy to switch the filter plate 7 for use in a timely manner. This reduces the time that high pressure exists inside the cylinder 1, reduces the time that the filter plate 7 is subjected to high pressure, reduces the duration of high-load operation of the fan 21, and improves the protection effect of the device.

[0036] Please see Figure 3 The inner wall of the cylinder 1 is fixedly connected to two sealing rings 18, and the opposite sides of the two sealing rings 18 are rotatably connected to the rotating cylinder 4.

[0037] In this invention, the sealing ring 18 can seal the space between the rotating cylinder 4 and the cylinder body 1, preventing leakage and improving the practicality of the device.

[0038] Please see Figure 3 Among them: an electric push rod 19 is inserted through the top of the housing 9 and is fixedly connected thereto; the telescopic end of the electric push rod 19 is fixedly connected to a scraper 20 that is adapted to the filter cartridge 12.

[0039] In this invention, after cleaning the filter plate 7, the cleaned particles will adhere to the inner wall of the filter cylinder 12. The user can drive the scraper 20 to slide along the inner wall of the filter cylinder 12 by turning on the electric push rod 19, thereby scraping off the particles attached to the inner wall of the filter cylinder 12 and pressing the particles to the bottom of the filter cylinder 12, which achieves a certain cleaning effect on the filter cylinder 12, thereby extending the cleaning cycle of the filter cylinder 12 and improving the practicality of the device.

[0040] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A waste gas treatment device with a protective structure, comprising a cylindrical body (1), characterized in that: The top and bottom of the cylinder (1) are respectively connected to an air inlet pipe (2) and an air outlet pipe (3). A fan (21) is installed on the air inlet pipe (2). A rotating cylinder (4) is rotatably connected to the inner wall of the cylinder (1). A motor (22) is fixedly connected to the bottom of the cylinder (1). The output shaft of the motor (22) passes through the cylinder (1) and is fixedly connected to the rotating cylinder (4). Two cavities (5) are opened inside the rotating cylinder (4). Two conduits (6) are connected to the inner walls of the two cavities (5). Filter plates (7) are fixedly connected to the inner walls of the two cavities (5). Two through holes (8) are opened on the inner walls of the two cavities (5). Two adjacent through holes (8) are located above the filter plates (7). Below, a box (9) is fixedly connected to the left side of the cylinder (1). A partition (10) is slidably connected to the front of the box (9). A groove (11) is provided at the bottom of the partition (10). A filter cylinder (12) is fixedly connected to the inner wall of the groove (11). Two air pipes (13) are fixedly connected to the cylinder (1). The right ends of the two air pipes (13) are aligned with the two through holes (8). The left ends of the two air pipes (13) pass through the box (9) and extend to the top and bottom of the partition (10). Solenoid valves (14) are installed on the two air pipes (13) and the four conduits (6). An air pump (15) is installed on the bottom air pipe (13).

2. The waste gas treatment device with a protective structure according to claim 1, characterized in that: The two filter plates (7) are inclined upward on opposite sides, and the bottom air pipe (13) is arranged in a Z-shape.

3. The waste gas treatment device with a protective structure according to claim 1, characterized in that: The front of the housing (9) is fixedly connected to a controller (16) that controls the opening and closing of the motor (22), solenoid valve (14) and air pump (15).

4. The waste gas treatment device with a protective structure according to claim 3, characterized in that: A pressure sensor (17) is installed on the inner wall of the cylinder (1). The pressure sensor (17) is located above the rotating cylinder (4). The output end of the pressure sensor (17) is connected to the controller (16) via signal.

5. The waste gas treatment device with a protective structure according to claim 1, characterized in that: The inner wall of the cylinder (1) is fixedly connected to two sealing rings (18), and the opposite side of the two sealing rings (18) is rotatably connected to the rotating cylinder (4).

6. The waste gas treatment device with a protective structure according to claim 1, characterized in that: An electric push rod (19) is inserted through the top of the housing (9) and fixedly connected thereto. The telescopic end of the electric push rod (19) is fixedly connected to a scraper (20) that is compatible with the filter cylinder (12).