Pretreatment device for chemical tail gas particle separation

Abstract

The utility model discloses a pretreatment device for chemical tail gas particle separation, which comprises a treatment box and a fixed box, the treatment box is communicated with the inside of the fixed box, the side wall of the treatment box is fixedly connected with a gas inlet pipe, the upper end of the treatment box is fixedly connected with a gas outlet pipe, the inner wall of the treatment box is fixedly connected with a first filter plate, and the inner wall of the first filter plate is fixedly connected with a second filter plate. A first rotating shaft is rotatably connected between the inner walls of the two sides of the treatment box, an incomplete gear is fixedly connected to the outer wall of the first rotating shaft, a swing plate is fixedly connected to the side wall of the incomplete gear, a second rotating shaft is rotatably connected to the inner wall of one side of the treatment box, and a rotating plate is fixedly connected to the other end of the second rotating shaft; the outer wall of the rotating plate is fixedly connected with a guide column. Through cooperation of an incomplete gear, a transmission gear and other structures, a swing plate drives a fixed plate to swing, then the spraying coverage range of a plurality of nozzles is enlarged, tail gas makes full contact with spraying liquid, and the particle sedimentation effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas treatment technology, and in particular to a pretreatment device for separating particulate matter from chemical exhaust gas. Background Technology

[0002] In chemical production, chemical reactions produce a large amount of reaction exhaust gas, which contains various particulate impurities. If these exhaust gases are directly discharged, they will not only cause serious environmental pollution, but may also cause wear and blockage of subsequent treatment equipment, affecting the normal operation and service life of the equipment. Therefore, it is necessary to separate the chemical exhaust gas particles.

[0003] However, when spraying exhaust gas, the spraying device is usually fixed, which can easily lead to local spraying that is too dense or too sparse, resulting in particulate matter not settling completely and affecting the treatment effect of exhaust gas. Furthermore, when using filter plates for filtration, exhaust gas particles can easily adhere to the filter plates, affecting their filtration effect. Therefore, we need to consider how to solve this problem. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pretreatment device for separating chemical exhaust gas particles. Through the cooperation of incomplete gears and transmission gears, the oscillating plate swings with the fixed plate, thereby expanding the spray coverage of multiple nozzles, allowing the exhaust gas to fully contact the spray liquid, and improving the sedimentation effect of the particles.

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

[0006] A pretreatment device for separating particulate matter from chemical exhaust gas includes a treatment box and a fixed box, which are internally connected. An air inlet pipe is fixedly connected to the side wall of the treatment box, and an air outlet pipe is fixedly connected to the upper end of the treatment box. A first filter plate is fixedly connected to the inner wall of the treatment box. A first rotating shaft is rotatably connected between the inner walls of the two sides of the treatment box. An incomplete gear is fixedly connected to the outer wall of the first rotating shaft, and a swing plate is fixedly connected to the side wall of the incomplete gear. A second rotating shaft is rotatably connected to one inner wall of the treatment box, and the other end of the second rotating shaft is fixed... A rotating plate is connected to the treatment box. A guide post is fixedly connected to the outer wall of the rotating plate. A guide groove is opened inside the swing plate. The guide post is slidably connected to the inner wall of the guide groove. A third rotating shaft is rotatably connected to the inner wall of the other side of the treatment box. A transmission gear is fixedly connected to the outer wall of the third rotating shaft. The transmission gear meshes with an incomplete gear. A fixed plate is fixedly connected to the lower end of the swing plate. The fixed plate is hollow inside. Multiple nozzles are fixedly connected to the lower end of the fixed plate. A reciprocating screw is rotatably connected between the inner walls of the two sides of the treatment box. A brush is threaded onto the reciprocating screw.

[0007] Preferably, a first motor is installed on the outer wall of the processing box, and the end of the output shaft of the first motor extends into the interior of the processing box and is fixedly connected to one end of a second rotating shaft.

[0008] Preferably, one end of the reciprocating lead screw extends to the outside and is connected to the output shaft of the first motor via a transmission mechanism. The transmission mechanism includes two pulleys, which are respectively mounted on the outside end of the reciprocating lead screw and the output shaft of the first motor, and are connected by belt drive.

[0009] Preferably, a second filter plate is fixedly connected to the inner wall of the fixed box, a second motor is installed on the outer wall of the fixed box, the output shaft of the second motor extends into the interior of the fixed box and is fixedly connected to a stirring shaft, and a plurality of stirring rods are fixedly connected to the outer wall of the stirring shaft.

[0010] Preferably, a dosing tube is fixedly connected to one side wall of the fixed box, and two sealing doors are hinged to the outer wall of the fixed box.

[0011] Preferably, a water pump is installed at the upper end of the processing tank, the inlet end of the water pump is connected to the inside of the fixed tank through an inlet pipe, and the outlet end of the water pump is connected to the inside of the fixed plate through an outlet pipe.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. By setting up structures such as incomplete gears, guide pillars, and transmission gears, the swing plate can swing along with the fixed plate. In this way, multiple nozzles spray the exhaust gas during the swing process, expanding the spray coverage of multiple nozzles, increasing the contact area between exhaust gas particles and spray liquid, and further improving the settling effect of exhaust gas particles.

[0014] 2. The system incorporates a reciprocating screw and brush structure, which allows the brush to reciprocate and clean the first filter plate, preventing particles from adhering to the first filter plate and affecting its filtration effect. Additionally, the system includes a stirring shaft and stirring rod to add chemicals and stir the liquid in the fixed tank, enabling liquid recycling and saving resources. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a pretreatment device for separating particulate matter in chemical tail gas proposed in this utility model.

[0016] Figure 2 for Figure 1 A schematic diagram of the right-side cross-section;

[0017] Figure 3 for Figure 2 Enlarged view of point A;

[0018] Figure 4 for Figure 1 A schematic diagram of the front cross-section;

[0019] Figure 5 for Figure 4 Enlarged view of point B;

[0020] Figure 6 for Figure 1 A schematic diagram of the rear side.

[0021] In the diagram: 1. Processing box, 2. Fixed box, 3. Air inlet pipe, 4. Air outlet pipe, 5. First filter plate, 6. First rotating shaft, 7. Incomplete gear, 8. Swing plate, 9. Second rotating shaft, 10. Rotating plate, 11. Guide column, 12. Guide groove, 13. Third rotating shaft, 14. Transmission gear, 15. Fixed plate, 16. Nozzle, 17. First motor, 18. Reciprocating screw, 19. Brush, 20. Transmission mechanism, 21. Second filter plate, 22. Second motor, 23. Stirring shaft, 24. Stirring rod, 25. Dosing pipe, 26. Sealing door, 27. Water pump, 28. Liquid inlet pipe, 29. Liquid outlet pipe. Detailed Implementation

[0022] 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-6 A pretreatment device for separating particulate matter from chemical exhaust gas includes a treatment box 1 and a fixed box 2, which are internally connected. An air inlet pipe 3 is fixedly connected to the side wall of the treatment box 1, and an air outlet pipe 4 is fixedly connected to the upper end of the treatment box 1. Valves are installed inside both the air inlet pipe 3 and the air outlet pipe 4. A first filter plate 5 is fixedly connected to the inner wall of the treatment box 1. A first rotating shaft 6 is rotatably connected between the inner walls of the two sides of the treatment box 1. An incomplete gear 7 is fixedly connected to the outer wall of the first rotating shaft 6. A swing plate 8 is fixedly connected to the side wall of the incomplete gear 7. A second rotating shaft 9 is rotatably connected to one inner wall of the treatment box 1. A rotating plate 10 is fixedly connected to the other end of the second rotating shaft 9. A guide post 11 is fixedly connected to the outer wall of the rotating plate 10. A guide groove 12 is opened in the swing plate 8. The guide post 11 is slidably connected to the inner wall of the guide groove 12. When the second rotating shaft 9 rotates with the rotating plate 10, the guide post 11 will slide in the guide groove 12, thereby causing the swing plate 8 to swing.

[0024] Among them, a third rotating shaft 13 is rotatably connected to the inner wall of the other side of the treatment box 1. A transmission gear 14 is fixedly connected to the outer wall of the third rotating shaft 13. The transmission gear 14 meshes with an incomplete gear 7. The meshing action of the incomplete gear 7 and the transmission gear 14 can drive the swing plate 8 to move further. A fixed plate 15 is fixedly connected to the lower end of the swing plate 8. The fixed plate 15 is hollow inside. Multiple nozzles 16 are fixedly connected to the lower end of the fixed plate 15. During the swing of the swing plate 8 with the fixed plate 15, the multiple nozzles 16 swing to spray the exhaust gas, which can expand the spray coverage area, so that the spray liquid can fully contact the exhaust gas and improve the settling efficiency of particles in the exhaust gas. A first motor 17 is installed on the outer wall of the treatment box 1. The output shaft of the first motor 17 extends into the interior of the treatment box 1 and is fixedly connected to one end of the second rotating shaft 9.

[0025] In this device, a reciprocating screw 18 is rotatably connected between the inner walls of both sides of the processing box 1. A brush 19 is threaded onto the reciprocating screw 18. One end of the reciprocating screw 18 extends to the outside and is connected to the output shaft of the first motor 17 via a transmission mechanism 20. The transmission mechanism 20 includes two pulleys, which are respectively installed on the outer end of the reciprocating screw 18 and the output shaft of the first motor 17. The two pulleys are connected by a belt drive. During the rotation of the second rotating shaft 9, the reciprocating screw 18 also rotates under the transmission action of the transmission mechanism 20, thereby causing the brush 19 to move back and forth to clean the first filter plate 5, preventing particles from adhering to the first filter plate 5 and affecting the filtration effect of the first filter plate 5. The exhaust gas particles will enter the interior of the fixed box 2. A second filter plate 21 is fixedly connected to the inner wall of the fixed box 2. The second filter plate 21 will filter the exhaust gas particles and liquid. The exhaust gas particles will remain on the second filter plate 21, while the liquid will fall into the bottom space of the fixed box 2.

[0026] The outer wall of the fixed box 2 is equipped with a second motor 22. The output shaft of the second motor 22 extends into the interior of the fixed box 2 and is fixedly connected to a stirring shaft 23. Multiple stirring rods 24 are fixedly connected to the outer wall of the stirring shaft 23. A dosing pipe 25 is fixedly connected to one side wall of the fixed box 2. Drugs are added into the fixed box 2 through the dosing pipe 25. Then, the second motor 22 is started, causing the stirring shaft 23 to rotate with the multiple stirring rods 24, so that the drugs and liquids are fully mixed, improving the treatment effect of the liquid and facilitating the reuse of water resources to avoid waste. The outer wall of the fixed box 2 is hinged with two sealing doors 26, which can be opened to collect and treat particles on the second filter plate 21. A water pump 27 is installed at the upper end of the treatment box 1. The inlet end of the water pump 27 is connected to the interior of the fixed box 2 through an inlet pipe 28, and the outlet end of the water pump 27 is connected to the interior of the fixed plate 15 through an outlet pipe 29.

[0027] In this invention, during use, exhaust gas is introduced into the treatment box 1 through the air inlet pipe 3. Then, the first motor 17 and the water pump 27 can be started. After the first motor 17 starts, it will rotate the second rotating shaft 9, which will cause the rotating plate 10 to rotate. At this time, the guide column 11 will slide in the guide groove 12 in the swing plate 8. With the cooperation of the guide column 11 and the guide groove 12, the swing plate 8 swings. At the same time, the incomplete gear 7 rotates with it. During the rotation, it intermittently meshes with the transmission gear 14, which further intensifies the swing amplitude and frequency of the swing plate 8. After the water pump 27 starts, it will draw liquid from the fixed box 2 through the liquid inlet pipe 28, and then enter the fixed plate 15 through the liquid outlet pipe 29. It will be sprayed out through multiple nozzles 16. The fixed plate 15 will swing with the multiple nozzles 16 as the swing plate 8 swings. During the swing, the exhaust gas is sprayed. By swinging multiple nozzles 16, the spray coverage can be increased, the contact area between the exhaust gas and the spray liquid can be increased, and the settling effect of exhaust gas particles can be further improved.

[0028] In the above process, after the first motor 17 is started, it also drives the reciprocating screw 18 to rotate through the transmission mechanism 20, thereby causing the brush 19 to move back and forth to clean the first filter plate 5, so as to prevent particles from adhering to the first filter plate 5 and affecting its filtration effect. The treated exhaust gas will be discharged through the exhaust pipe 4 after passing through the first filter plate 5, while the particles and liquid will fall into the fixed box 2. The particles will fall onto the second filter plate 21, while the liquid will fall into the bottom space of the fixed box 2 through the mesh of the second filter plate 21. The medicine can be added to the bottom space of the fixed box 2 through the dosing pipe 25. Then the second motor 22 is started, so that the stirring shaft 23 drives multiple stirring rods 24 to rotate, which accelerates the fusion of liquid and medicine and facilitates subsequent recycling.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pre-treatment device for chemical tail gas particle separation, comprising a treatment box (1) and a fixed box (2), characterized in that, The processing box (1) and the fixed box (2) are internally communicated, the side wall of the processing box (1) is fixedly connected with an air inlet pipe (3), the upper end of the processing box (1) is fixedly connected with an air outlet pipe (4), the inner wall of the processing box (1) is fixedly connected with a first filter plate (5), the inner walls of the two sides of the processing box (1) are rotatably connected with a first rotating shaft (6), the outer wall of the first rotating shaft (6) is fixedly connected with an incomplete gear (7), the side wall of the incomplete gear (7) is fixedly connected with an oscillating plate (8), the inner wall of one side of the processing box (1) is rotatably connected with a second rotating shaft (9), the other end of the second rotating shaft (9) is fixedly connected with a rotating plate (10), the outer wall of the rotating plate (10) is fixedly connected with a guide column (11), the oscillating plate (8) is internally provided with a guide groove (12), the guide column (11) is slidably connected with the inner wall of the guide groove (12), the inner wall of the other side of the processing box (1) is rotatably connected with a third rotating shaft (13), the outer wall of the third rotating shaft (13) is fixedly connected with a transmission gear (14), the transmission gear (14) is engaged with the incomplete gear (7), the lower end of the oscillating plate (8) is fixedly connected with a fixed plate (15), the fixed plate (15) is internally hollow, the lower end of the fixed plate (15) is fixedly connected with a plurality of spray heads (16), the inner walls of the two sides of the processing box (1) are rotatably connected with a reciprocating screw rod (18), the brush (19) is threadedly connected on the reciprocating screw rod (18).

2. The pre-treatment device for separating particles from chemical tail gas according to claim 1, characterized in that The outer wall of the processing box (1) is provided with a first motor (17), the output shaft of the first motor (17) extends into the processing box (1) and is fixedly connected with one end of the second rotating shaft (9).

3. The pre-treatment device for chemical off-gas particle separation according to claim 2, characterized in that, One end of the reciprocating screw rod (18) extends to the outside and is drivingly connected with the output shaft of the first motor (17) through a transmission mechanism (20), the transmission mechanism (20) comprises two belt pulleys, the two belt pulleys are respectively arranged on one end of the reciprocating screw rod (18) located outside and the output shaft of the first motor (17), and the two belt pulleys are drivingly connected through a belt.

4. The pre-treatment device for chemical off-gas particle separation according to claim 1, characterized in that, The inner wall of the fixed box (2) is fixedly connected with a second filter plate (21), the outer wall of the fixed box (2) is provided with a second motor (22), the output shaft of the second motor (22) extends into the fixed box (2) and is fixedly connected with a stirring shaft (23), and the outer wall of the stirring shaft (23) is fixedly connected with a plurality of stirring rods (24).

5. The pre-treatment device for chemical off-gas particle separation according to claim 1, characterized in that, One side wall of the fixed box (2) is fixedly connected with a dosing pipe (25), and the outer wall of the fixed box (2) is hingedly provided with two sealing doors (26).

6. The pre-treatment device for chemical off-gas particle separation according to claim 1, characterized in that, The upper end of the processing box (1) is provided with a water pump (27), the liquid inlet end of the water pump (27) is communicated with the inside of the fixed box (2) through a liquid inlet pipe (28), and the liquid outlet end of the water pump (27) is communicated with the inside of the fixed plate (15) through a liquid outlet pipe (29).

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