Recovery and purification treatment device for chemical waste gas

Abstract

The utility model discloses a chemical waste gas recovery purification treatment device, which comprises a filter box, a filter screen is fixedly installed inside the filter box and close to the middle of the filter box, a spraying box is arranged on the right side of the filter box, a shell is fixedly installed on the right side of the filter box, a first motor is fixedly installed on the right side of the inner wall of the shell, and a second motor is fixedly installed on the right side of the inner wall of the shell. A driving gear is fixedly mounted at the output end of the first motor, a first driven gear is movably meshed with the upper side of the driving gear, a first threaded rod is fixedly mounted on the left side of the first driven gear, a first threaded block is in threaded connection with the exterior of the first threaded rod, and a brush plate is fixedly mounted at the bottom of the first threaded block. According to the utility model, through the matching of the structures, the automatic cleaning and brushing of the filter screen are realized, so that the filtering effect of the filter screen can be ensured, the manual replacement of the filter screen is avoided, and the use convenience of the purification treatment device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical waste gas treatment technology, specifically a chemical waste gas recovery and purification treatment device. Background Technology

[0002] Chemical waste gas refers to toxic and harmful gases discharged from chemical plants during chemical production. These waste gases often contain multiple pollutants, with complex physical and chemical properties and varying toxicity. Chemical waste gas seriously pollutes the environment and affects human health. The composition of chemical waste gas varies greatly among different chemical production industries. For example, waste gas from the chlor-alkali industry mainly contains chlorine and hydrogen chloride, while waste gas from the nitrogen fertilizer industry mainly contains nitrogen oxides and ammonia. Therefore, purification treatment is required during the recovery of chemical waste gas. The existing publication CN221618996U discloses a chemical waste gas recovery and purification device. A filter screen is slidably connected inside the purification box of the first purification component, and an activated carbon plate is slidably connected inside the purification box of the second purification component. While the filter screen and activated carbon plate can still be replaced during device operation, the device cannot automatically clean the filter screen, requiring manual disassembly and assembly by personnel. This significantly reduces the convenience of using the purification device and has certain adverse effects on practical use, thus requiring improvement. Utility Model Content

[0003] The purpose of this utility model is to provide a chemical waste gas recovery and purification treatment device. The cleaning device enables automatic cleaning of the filter screen, thereby ensuring the filtration effect of the filter screen and avoiding manual replacement of the filter screen. This improves the convenience of using the purification treatment device and brings certain benefits to practical use, solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a chemical waste gas recovery and purification treatment device, comprising a filter box, a filter screen fixedly installed inside the filter box near its center, a spray box located on the right side of the filter box, an air inlet pipe connected through the top of the filter box, an L-shaped air supply pipe connected through the right side of the filter box near its bottom, the other end of the L-shaped air supply pipe extending into the interior of the spray box, a drain pipe connected through the right side of the spray box near its bottom, connecting rods fixedly installed on the top and near both sides of the inner wall of the spray box, an annular pipe fixedly installed at the bottom end of the connecting rods, and several... A spray nozzle is provided. A water supply pipe is connected to the right side of the annular pipe. The other end of the water supply pipe passes through the spray box and is fixedly connected to a connector. A housing is fixedly installed on the right side of the filter box. A first motor is fixedly installed on the right side of the inner wall of the housing. A rotating shaft is fixedly installed at the output end of the first motor. A drive gear is fixedly installed at the other end of the rotating shaft. A first driven gear is movably meshed on the upper side of the drive gear. A first threaded rod is fixedly installed on the left side of the first driven gear. The other end of the first threaded rod is rotatably connected to the left side of the inner wall of the filter box through a bearing. A first threaded block is threadedly connected to the external thread of the first threaded rod. A brush plate is fixedly installed at the bottom of the first threaded block.

[0005] Preferably, the bottom of the driving gear is movably engaged with a second driven gear, a second threaded rod is fixedly installed on the left side of the second driven gear, the other end of the second threaded rod is rotatably connected to the left side of the inner wall of the filter box through a bearing, a second threaded block is threadedly connected to the external thread of the second threaded rod, a connecting pipe is fixedly installed on the top of the second threaded block, a plurality of nozzles are fixedly installed on the top of the connecting pipe, a hose is connected through the left side of the connecting pipe, and an air pump is fixedly connected to the other end of the hose after it exits the filter box.

[0006] Preferably, a sliding sleeve is fixedly installed on the top of the first threaded block and the bottom of the second threaded block, and a sliding rod is slidably connected inside the sliding sleeve. The two ends of the sliding rod are fixedly connected to the two sides of the inner wall of the filter box.

[0007] Preferably, a second motor is fixedly installed on the right side of the air intake pipe, a rotating shaft is fixedly installed at the output end of the second motor, the other end of the rotating shaft is rotatably connected to the left side of the air intake pipe through a bearing, and a circular baffle is fixedly installed on the outside of the rotating shaft.

[0008] Preferably, a storage frame is connected through the left side of the inner wall of the filter box, and a cover plate is provided on the left side of the storage frame. The cover plate is connected to the storage frame by fixing bolts.

[0009] Preferably, an arc-shaped baffle is provided above the top of the L-shaped gas pipe, and support rods are fixedly installed on both sides of the bottom of the arc-shaped baffle, and the support rods are fixedly connected to the L-shaped gas pipe.

[0010] Preferably, an exhaust pipe is connected through the top of the spray box, an exhaust fan is fixedly installed inside the exhaust pipe, and an activated carbon plate is fixedly installed above the exhaust fan.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The first motor, when started, drives the rotating shaft to rotate, which in turn drives the driving gear to rotate. The driving gear then drives the first driven gear to rotate, which in turn drives the first threaded rod to rotate. The first threaded rod then moves the first threaded block, which in turn moves the brush plate to clean the filter screen. This ensures the filtration effect of the filter screen and avoids manual replacement, thus improving the convenience of using the purification device. The driving gear drives the second driven gear to rotate, which in turn drives the second threaded rod to rotate. The second threaded rod then moves the second threaded block, which in turn moves the connecting pipe and the nozzle. Simultaneously, the air pump, when started, delivers air into the connecting pipe. The air inside the connecting pipe is then ejected through the nozzle, thereby cleaning the mesh of the filter screen with air, further improving the cleaning effect of the filter screen. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the shell of this utility model;

[0015] Figure 4 This is a schematic diagram of the internal structure of the exhaust pipe of this utility model.

[0016] In the diagram: 1. Filter box; 2. Filter screen; 3. Spray box; 4. Air inlet pipe; 5. L-shaped air supply pipe; 6. Ring pipe; 7. Nozzle; 8. Water supply pipe; 9. Connector; 10. Housing; 11. First motor; 12. Drive gear; 13. First driven gear; 14. First threaded rod; 15. First threaded block; 16. Brush plate; 17. Second driven gear; 18. Second threaded rod; 19. Second threaded block; 20. Connecting pipe; 21. Nozzle; 22. Hose; 23. Air pump; 24. Sliding sleeve; 25. Sliding rod; 26. Second motor; 27. Circular baffle; 28. Material storage frame; 29. ​​Cover plate; 30. Arc-shaped baffle; 31. Exhaust pipe; 32. Exhaust fan; 33. Activated carbon plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1, please refer to Figures 1 to 4 This utility model provides a technical solution: a chemical waste gas recovery and purification treatment device, including a filter box 1, a filter screen 2 fixedly installed inside the filter box 1 near its center, a spray box 3 located on the right side of the filter box 1, an air inlet pipe 4 connected through the top of the filter box 1, an L-shaped air supply pipe 5 connected through the right side of the filter box 1 near its bottom, the other end of the L-shaped air supply pipe 5 extending into the interior of the spray box 3, a drain pipe connected through the right side of the spray box 3 near its bottom, a connecting rod fixedly installed on the top and near both sides of the inner wall of the spray box 3, an annular pipe 6 fixedly installed at the bottom end of the connecting rod, a plurality of nozzles 7 fixedly installed at the bottom of the annular pipe 6, and the right side of the annular pipe 6... A water supply pipe 8 is connected through the filter box 3. The other end of the water supply pipe 8 passes through the spray box 3 and is fixedly connected to a connector 9. A housing 10 is fixedly installed on the right side of the filter box 1. A first motor 11 is fixedly installed on the right side of the inner wall of the housing 10. A rotating shaft is fixedly installed at the output end of the first motor 11. A drive gear 12 is fixedly installed at the other end of the rotating shaft. A first driven gear 13 is movably meshed on the upper side of the drive gear 12. A first threaded rod 14 is fixedly installed on the left side of the first driven gear 13. The other end of the first threaded rod 14 is rotatably connected to the left side of the inner wall of the filter box 1 through a bearing. A first threaded block 15 is connected to the external thread of the first threaded rod 14. A brush plate 16 is fixedly installed at the bottom of the first threaded block 15.

[0019] Furthermore, the bottom of the driving gear 12 is movably engaged with a second driven gear 17. A second threaded rod 18 is fixedly installed on the left side of the second driven gear 17. The other end of the second threaded rod 18 is rotatably connected to the left side of the inner wall of the filter box 1 through a bearing. A second threaded block 19 is threadedly connected to the outside of the second threaded rod 18. A connecting pipe 20 is fixedly installed on the top of the second threaded block 19. Several nozzles 21 are fixedly installed on the top of the connecting pipe 20. A hose 22 is connected through the left side of the connecting pipe 20. The other end of the hose 22 extends out of the filter box 1 and is fixedly connected to an air pump 23. When the air pump 23 is started, it can deliver air into the interior of the connecting pipe 20. The air inside the connecting pipe 20 can be sprayed out through the nozzles 21, thereby cleaning the mesh of the filter screen 2 by blowing air.

[0020] Furthermore, a sliding sleeve 24 is fixedly installed on the top of the first threaded block 15 and the bottom of the second threaded block 19. A sliding rod 25 is slidably connected inside the sliding sleeve 24. The two ends of the sliding rod 25 are fixedly connected to the inner walls of the filter box 1. The first threaded block 15 and the second threaded block 19 can move stably under the sliding action of the sliding rod 25 and the sliding sleeve 24.

[0021] Furthermore, a second motor 26 is fixedly installed on the right side of the intake pipe 4. A rotating shaft is fixedly installed at the output end of the second motor 26. The other end of the rotating shaft is rotatably connected to the left side of the intake pipe 4 through a bearing. A circular baffle 27 is fixedly installed on the outside of the rotating shaft. When the second motor 26 is started, it can drive the rotating shaft to rotate. The rotating shaft can drive the circular baffle 27 to rotate. The rotation of the circular baffle 27 can control the flow rate of the treated exhaust gas.

[0022] Example 2, please refer to Figures 1 to 4 The difference between this embodiment and Embodiment 1 is that: a storage frame 28 is connected through the left side of the inner wall of the filter box 1, and a cover plate 29 is provided on the left side of the storage frame 28. The cover plate 29 is connected to the storage frame 28 by fixing bolts. The storage frame 28 can store the filtered impurities, and the operator can open the cover plate 29 to clean the impurities stored in the storage frame 28. An arc-shaped baffle 30 is provided above the top of the L-shaped air pipe 5, and support rods are fixedly installed on both sides of the bottom of the arc-shaped baffle 30. The L-shaped air supply pipe 5 is fixedly connected, and the arc-shaped baffle 30 can block the air outlet of the L-shaped air supply pipe 5, thereby preventing spray water from falling into the interior of the L-shaped air supply pipe 5. The top of the spray box 3 is connected to the exhaust pipe 31, and the exhaust fan 32 is fixedly installed inside the exhaust pipe 31. The activated carbon plate 33 is fixedly installed above the exhaust fan 32. When the exhaust fan 32 is activated, the exhaust gas in the spray box 3 can be quickly discharged, and the activated carbon plate 33 can further adsorb the harmful substances in the exhaust gas.

[0023] Working Principle: In operation, this chemical waste gas recovery and purification device allows the chemical waste gas to enter the filter box 1 through the inlet pipe 4. Simultaneously, the filter screen 2 filters the chemical waste gas. The filtered waste gas then enters the spray box 3 through the L-shaped rod. External spray water enters the annular pipe 6 through the connector 9 and water supply pipe 8. The water inside the annular pipe 6 is sprayed out through the nozzles 7, thus spraying the chemical waste gas. During the spraying process, the operator can activate the exhaust fan 32, which quickly discharges the waste gas from the spray box 3. The activated carbon plate 33 further adsorbs harmful substances in the waste gas. When cleaning the filter plate is required, the operator can activate the first motor 11. The first motor 11 drives the rotating shaft to rotate, which in turn drives the drive gear 12 to rotate. The drive gear 12 then drives the first driven gear 13. When the device rotates, the first driven gear 13 drives the first threaded rod 14 to rotate, which in turn drives the first threaded block 15 to move. The first threaded block 15 then drives the brush plate 16 to clean the filter screen 2, thus ensuring the filtration effect of the filter screen 2 and avoiding manual replacement of the filter screen 2, thereby improving the convenience of using the purification device. The driving gear 12 drives the second driven gear 17 to rotate, which in turn drives the second threaded rod 18 to rotate. The second threaded rod 18 then drives the second threaded block 19 to move, which in turn drives the connecting pipe 20 and the nozzle 21 to move. At the same time, the air pump 23 is activated to deliver air into the connecting pipe 20. The air inside the connecting pipe 20 can be sprayed out through the nozzle 21, thereby blowing air to clean the mesh of the filter screen 2, further improving the cleaning effect of the filter screen 2.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chemical waste gas recovery and purification treatment device, comprising a filter box (1), characterized in that: A filter screen (2) is fixedly installed inside the filter box (1) and near its center. A spray box (3) is provided on the right side of the filter box (1). An air inlet pipe (4) is connected through the top of the filter box (1). An L-shaped air supply pipe (5) is connected through the right side of the filter box (1) and near its bottom. The other end of the L-shaped air supply pipe (5) extends into the spray box (3). A drain pipe is connected through the right side of the spray box (3) and near its bottom. A connecting rod is fixedly installed on the top and near both sides of the inner wall of the spray box (3). An annular pipe (6) is fixedly installed at the bottom of the connecting rod. Several nozzles (7) are fixedly installed at the bottom of the annular pipe (6). A water supply pipe (8) is connected through the right side of the annular pipe (6). The other end of the water supply pipe (8) A connector (9) is fixedly connected to the end of the spray box (3). A housing (10) is fixedly installed on the right side of the filter box (1). A first motor (11) is fixedly installed on the right side of the inner wall of the housing (10). A rotating shaft is fixedly installed at the output end of the first motor (11). A drive gear (12) is fixedly installed at the other end of the rotating shaft. A first driven gear (13) is movably meshed on the upper side of the drive gear (12). A first threaded rod (14) is fixedly installed on the left side of the first driven gear (13). The other end of the first threaded rod (14) is rotatably connected to the left side of the inner wall of the filter box (1) through a bearing. A first threaded block (15) is threadedly connected to the outside of the first threaded rod (14). A brush plate (16) is fixedly installed at the bottom of the first threaded block (15).

2. The chemical waste gas recovery and purification treatment device according to claim 1, characterized in that: The bottom of the driving gear (12) is movably engaged with a second driven gear (17). A second threaded rod (18) is fixedly installed on the left side of the second driven gear (17). The other end of the second threaded rod (18) is rotatably connected to the left side of the inner wall of the filter box (1) through a bearing. A second threaded block (19) is threadedly connected to the outside of the second threaded rod (18). A connecting pipe (20) is fixedly installed on the top of the second threaded block (19). Several nozzles (21) are fixedly installed on the top of the connecting pipe (20). A hose (22) is connected through the left side of the connecting pipe (20). The other end of the hose (22) extends out of the filter box (1) and is fixedly connected to an air pump (23).

3. The chemical waste gas recovery and purification treatment device according to claim 1, characterized in that: A sliding sleeve (24) is fixedly installed on the top of the first threaded block (15) and the bottom of the second threaded block (19). A sliding rod (25) is slidably connected inside the sliding sleeve (24). The two ends of the sliding rod (25) are fixedly connected to the inner walls of the filter box (1).

4. The chemical waste gas recovery and purification treatment device according to claim 1, characterized in that: A second motor (26) is fixedly installed on the right side of the air intake pipe (4). A rotating shaft is fixedly installed at the output end of the second motor (26). The other end of the rotating shaft is rotatably connected to the left side of the air intake pipe (4) through a bearing. A circular baffle (27) is fixedly installed on the outside of the rotating shaft.

5. The chemical waste gas recovery and purification treatment device according to claim 1, characterized in that: The filter box (1) has a material storage frame (28) that is connected through the left side of its inner wall. The material storage frame (28) has a cover plate (29) on its left side, and the cover plate (29) is connected to the material storage frame (28) by fixing bolts.

6. The chemical waste gas recovery and purification treatment device according to claim 1, characterized in that: An arc-shaped baffle (30) is provided above the top of the L-shaped gas pipe (5). Support rods are fixedly installed on both sides of the bottom of the arc-shaped baffle (30), and the support rods are fixedly connected to the L-shaped gas pipe (5).

7. The chemical waste gas recovery and purification treatment device according to claim 1, characterized in that: The top of the spray box (3) is connected to an exhaust pipe (31), an exhaust fan (32) is fixedly installed inside the exhaust pipe (31), and an activated carbon plate (33) is fixedly installed above the exhaust fan (32).

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