Organic waste gas absorption pretreatment device

Abstract

The utility model relates to the field of waste gas absorption pretreatment devices, and discloses an organic waste gas absorption pretreatment device which comprises a filter box and a stirring tank, a gas inlet pipe is fixedly connected to the left side of the filter box, a filter screen is fixedly connected to the interior of the filter box, and a cleaning and collecting assembly is arranged on the outer side of the filter screen. A communicating pipe is fixedly connected to the right side of the filter box, a supporting block is fixedly connected to the bottom of the stirring tank, a hollow block is fixedly connected to the outer side of the supporting block, a motor is fixedly connected to the outer side of the supporting block, and a gear is fixedly connected to the output end of the motor. According to the waste gas pretreatment device disclosed by the utility model, through mutual matching of structures such as the cylinder, the L-shaped rod, the brush, the filter screen, the inserting rod, the spring I, the collection drawer and the blocking rod, automatic cleaning of impurities of the filter screen and convenient disassembly and maintenance of the collection drawer are realized, so that the waste gas filtering efficiency is prevented from being influenced by blockage of the filter screen, and continuous and stable operation of the pretreatment device is ensured; the manual maintenance intensity and frequency are reduced, and the convenience and practicability of equipment use are improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas absorption pretreatment devices, and more particularly to organic waste gas absorption pretreatment devices. Background Technology

[0002] Organic waste gas is waste gas containing volatile organic compounds (VOCs), with a wide range of sources, such as chemical, spraying, and printing industries. Its components include benzene, toluene, xylene, etc., which are toxic, flammable, and some are carcinogenic. It pollutes the air, harms health, and may also cause photochemical smog. It must be treated using technologies such as adsorption and catalytic combustion to meet emission standards.

[0003] In existing technologies, organic waste gas absorption pretreatment devices often suffer from filter screen blockage due to impurity accumulation, which significantly reduces waste gas filtration efficiency and affects the stable operation of the device.

[0004] To address the above issues, an organic waste gas absorption pretreatment device is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an organic waste gas absorption pretreatment device, which aims to improve the problem that the filter screen of the existing organic waste gas absorption pretreatment device is often clogged due to the accumulation of impurities, which significantly reduces the waste gas filtration efficiency and affects the stable operation of the device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an organic waste gas absorption pretreatment device, including a filter box and a mixing tank. An air inlet pipe is fixedly connected to the left side of the filter box, a filter screen is fixedly connected inside the filter box, and a cleaning and collection assembly is provided on the outside of the filter screen. A connecting pipe is fixedly connected to the right side of the filter box. A support block is fixedly connected to the bottom of the mixing tank, a hollow block is fixedly connected to the outside of the support block, a motor is fixedly connected to the outside of the support block, a gear is fixedly connected to the output end of the motor, and a stirring and air-discharging hollow rod is rotatably connected inside the hollow block. A toothed ring is fixedly connected to the outer side of the hollow stirring and venting rod, and the toothed ring meshes with the gear. Multiple vent holes are opened on the outer side of the hollow stirring and venting rod. Multiple connecting rods are fixedly connected to the outer side of the hollow stirring and venting rod, and a scraping component is provided on the outer side of the connecting rods. A processing box is fixedly connected to the top of the stirring tank. An activated carbon filter is fixedly connected inside the processing box. An vent pipe is fixedly connected to the top of the processing box. A liquid inlet is fixedly connected to the upper part of the outer side of the stirring tank. A support frame is fixedly connected to the outer side of the stirring tank. Two supports are fixedly connected to the outer side of the filter box.

[0007] The cleaning and collection assembly includes a fixing block and a cylinder. The fixing block is fixedly connected to the bottom of the filter box on its outer side, and the cylinder is fixedly connected to the right side of the filter box on its outer side. An L-shaped rod is fixedly connected to the output end of the cylinder, and a brush is fixedly connected to the outer side of the L-shaped rod. A collection tray is slidably connected inside the fixing block. Two thin shells are fixedly connected to the outer side of the fixing block. An anti-detachment rod is fixedly connected to the top of the thin shells, and a plug rod is slidably connected inside the thin shells. A baffle is fixedly connected to the outer side of the plug rod, and a spring is sleeved on the outer side of the plug rod. A blocking rod is provided at the bottom of the baffle.

[0008] As a further description of the above technical solution:

[0009] The scraping assembly includes a hollow shell, the outer side of which is fixedly connected to the outer side of the connecting rod. A plurality of springs are fixedly connected to the inner wall of the hollow shell. A limit plate is fixedly connected to the end of each spring away from the hollow shell. A scraper is fixedly connected to the outer side of the limit plate.

[0010] As a further description of the above technical solution:

[0011] The bottom of the mixing tank is fixedly connected to a liquid outlet, and a valve is provided on the outside of the liquid outlet.

[0012] As a further description of the above technical solution:

[0013] The outer side of the stirring and venting hollow rod is rotatably connected to the inside of the stirring tank, and the end of the connecting pipe away from the filter box is fixedly connected to the outer side of the hollow block.

[0014] As a further description of the above technical solution:

[0015] One end of the spring is fixedly connected to the outside of the baffle, and the other end of the spring is fixedly connected to the inner wall of the thin shell.

[0016] As a further description of the above technical solution:

[0017] The plug rod passes through the fixing block and is inserted into the inner wall of the collection drawer, and the outer side of the baffle is slidably connected to the inner wall of the thin shell.

[0018] As a further description of the above technical solution:

[0019] The lower outer part of the barrier bar is slidably connected to the inside of the thin shell, and the upper outer part of the barrier bar is slidably connected to the inner wall of the anti-detachment bar.

[0020] As a further description of the above technical solution:

[0021] The limiting plate is slidably connected to the inner wall of the hollow shell, and the scraper abuts against the inner wall of the mixing tank.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the starting cylinder drives the L-shaped rod, causing the brush to clean the filter screen. Impurities fall into the collection tray. When the tray is full, the plug rod is pulled to compress the spring and disengage from the collection tray. The blocking rod slides down and is pulled out for cleaning. After cleaning, the collection tray is inserted back in, and the blocking rod is pulled up. The spring pushes the plug rod to fix it again. This realizes automatic cleaning of filter screen impurities and convenient disassembly and maintenance of the collection tray. It not only avoids filter screen clogging affecting the exhaust gas filtration efficiency and ensures the continuous and stable operation of the pretreatment device, but also simplifies the collection tray cleaning process, reduces the intensity and frequency of manual maintenance, and improves the convenience and practicality of the equipment.

[0024] 2. In this utility model, the motor drives the gear to rotate, and the gear meshes with the gear ring, causing the hollow rod of the stirring outlet to rotate. During the rotation, the scraper rod is always in contact with the inner wall of the stirring tank under the action of the second spring and the limiting plate. This not only effectively stirs the gas-liquid mixture in the tank, allowing the organic waste gas to fully contact the absorbent and improve the absorption efficiency, but also promptly scrapes off the absorbent residue adhering to the inner wall of the stirring tank, avoiding the accumulation of liquid from affecting the gas-liquid mass transfer effect, ensuring the stable operation of the pretreatment device, and reducing equipment maintenance costs. Attached Figure Description

[0025] Figure 1 This is a perspective view of the organic waste gas absorption and pretreatment device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the brush in the organic waste gas absorption pretreatment device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the gear structure of the organic waste gas absorption and pretreatment device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of spring 2 in the organic waste gas absorption and pretreatment device proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the spring structure of the organic waste gas absorption and pretreatment device proposed in this utility model.

[0030] Legend:

[0031] 1. Filter box; 2. Air inlet pipe; 3. Cylinder; 4. L-shaped rod; 5. Brush; 6. Filter screen; 7. Fixing block; 8. Collection drawer; 9. Thin shell; 10. Connecting rod; 11. Anti-detachment rod; 12. Barrier rod; 13. Baffle; 14. Spring 1; 15. Support; 16. Connecting pipe; 17. Hollow block; 18. Hollow rod for stirring and air outlet; 19. Support block; 20. Gear ring; 21. Gear; 22. Motor; 23. Liquid inlet; 24. Connecting rod; 25. Hollow shell; 26. Limiting plate; 27. Scraper; 28. Spring 2; 29. ​​Processing box; 30. Air outlet pipe; 31. Activated carbon filter screen; 32. Liquid outlet; 33. Support frame; 34. Stirring tank. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-5 An embodiment of this utility model provides an organic waste gas absorption pretreatment device, comprising a filter box 1 and a mixing tank 34. An air inlet pipe 2 is fixedly connected to the left side of the filter box 1. A filter screen 6 is fixedly connected inside the filter box 1, and a cleaning and collection assembly is provided on the outside of the filter screen 6. A connecting pipe 16 is fixedly connected to the right side of the filter box 1. A support block 19 is fixedly connected to the bottom of the mixing tank 34. A hollow block 17 is fixedly connected to the outside of the support block 19. A motor 22 is fixedly connected to the outside of the support block 19. A gear 21 is fixedly connected to the output end of the motor 22. A stirring and air-discharging hollow rod 18 is rotatably connected inside the hollow block 17. A toothed ring 20 is fixedly connected to the outside of the stirring and venting hollow rod 18, and the toothed ring 20 is meshed with the gear 21. Multiple air outlet holes are opened on the outside of the stirring and venting hollow rod 18. Multiple connecting rods 24 are fixedly connected to the outside of the stirring and venting hollow rod 18. A scraping component is provided on the outside of the connecting rods 24. A treatment box 29 is fixedly connected to the top of the stirring tank 34. An activated carbon filter screen 31 is fixedly connected inside the treatment box 29. An air outlet pipe 30 is fixedly connected to the top of the treatment box 29. An inlet 23 is fixedly connected to the upper part of the outside of the stirring tank 34. A support frame 33 is fixedly connected to the outside of the stirring tank 34. Two supports 15 are fixedly connected to the outside of the filter box 1.

[0034] The cleaning and collection assembly includes a fixing block 7 and a cylinder 3. The fixing block 7 is fixedly connected to the bottom of the filter box 1 on the outside. The cylinder 3 is fixedly connected to the right side of the filter box 1 on the outside. An L-shaped rod 4 is fixedly connected to the output end of the cylinder 3. A brush 5 is fixedly connected to the outside of the L-shaped rod 4. A collection tray 8 is slidably connected inside the fixing block 7. Two thin shells 9 are fixedly connected to the outside of the fixing block 7. An anti-detachment rod 11 is fixedly connected to the top of the thin shell 9. A plug rod 10 is slidably connected inside the thin shell 9. A baffle 13 is fixedly connected to the outside of the plug rod 10. A spring 14 is sleeved on the outside of the plug rod 10. A blocking rod 12 is provided at the bottom of the baffle 13.

[0035] Specifically, the intake pipe 2 is used to introduce organic waste gas; the filter box 1 works with the filter screen 6 to intercept particulate matter and other impurities in the waste gas; in the cleaning and collection assembly, the cylinder 3 drives the L-shaped rod 4 and the brush 5 to clean impurities on the surface of the filter screen 6, the collection tray 8 is used to collect the cleaned impurities, the fixing block 7 provides support, the thin shell 9, the anti-detachment rod 11, the plug-in rod 10, the baffle 13 and the spring 14 work together to fix and disassemble the collection tray 8, and the blocking rod 12 prevents the plug-in rod 10 from being accidentally inserted when the collection tray 8 is disassembled; the connecting pipe 16 is used to transport the filtered waste gas to the mixing tank 34; the support block 19 and the hollow block 17 provide structural support for the device; the motor 22 connects with the gear 21 via the gear. The ring 20 engages, driving the stirring and venting hollow rod 18 to rotate, which is used to disperse the waste gas; the vent hole on the stirring and venting hollow rod 18 is used to discharge the waste gas, the connecting rod 24 drives the scraping component, which is used to scrape off the absorbent residue on the inner wall of the stirring tank 34; the stirring tank 34 is used to contain the absorbent and mix it with the waste gas to absorb the organic waste gas, and the liquid inlet 23 is used to add the absorbent; the treatment box 29 cooperates with the activated carbon filter 31 to perform secondary purification on the gas after absorption treatment; the vent pipe 30 is used to discharge the purified gas; the liquid outlet 32 ​​is used to discharge the absorbent after absorption saturation; the support frame 33 is used to support the stirring tank 34, and the support (15) is used to support the filter box (1).

[0036] Reference Figures 1-4 The scraping assembly includes a hollow shell 25, which is fixedly connected to the outside of the connecting rod 24. Multiple springs 28 are fixedly connected to the inner wall of the hollow shell 25. A limit plate 26 is fixedly connected to the end of the springs 28 away from the hollow shell 25. A scraper 27 is fixedly connected to the outside of the limit plate 26.

[0037] Specifically, the hollow shell 25 is used to connect the connecting rod 24 and serve as the mounting carrier for the scraping assembly; the spring 28 is used to provide elasticity so that the scraper 27 can adaptively conform to the inner wall of the mixing tank 34; the limiting plate 26 is used to limit the range of movement of the scraper 27 and prevent it from deviating excessively; the scraper 27 is used to scrape off the absorbent residue adhering to the inner wall of the mixing tank 34 when the hollow rod 18 rotates, promoting full mixing and contact between the absorbent and the organic waste gas, and improving the absorption efficiency.

[0038] Reference Figures 1-5 The bottom of the mixing tank 34 is fixedly connected to the liquid outlet 32, and a valve is provided on the outside of the liquid outlet 32. The outside of the stirring and venting hollow rod 18 is rotatably connected to the inside of the mixing tank 34. The end of the connecting pipe 16 away from the filter box 1 is fixedly connected to the outside of the hollow block 17. One end of the spring 14 is fixedly connected to the outside of the baffle 13, and the other end of the spring 14 is fixedly connected to the inner wall of the thin shell 9. The plug rod 10 passes through the fixing block 7 and is inserted into the inner wall of the collection tray 8. The outside of the baffle 13 is slidably connected to the inner wall of the thin shell 9. The lower part of the outer side of the blocking rod 12 is slidably connected to the inside of the thin shell 9, and the upper part of the outer side of the blocking rod 12 is slidably connected to the inner wall of the anti-detachment rod 11. The outside of the limiting plate 26 is slidably connected to the inner wall of the hollow shell 25. The scraper 27 abuts against the inner wall of the mixing tank 34.

[0039] Specifically, the outlet 32 ​​at the bottom of the mixing tank 34 and the outer valve are used to discharge the absorbent after it has become saturated, and the discharge process is controlled by the valve; the stirring and venting hollow rod 18 is rotatably connected inside the mixing tank 34, and is used to rotate under the drive of the motor 22 to disperse the waste gas and drive the scraping assembly to work; the connecting pipe 16 is connected to the outside of the hollow block 17 at the end away from the filter box 1, and is used to transport the filtered waste gas to the hollow block 17, and then into the mixing tank 34 through the stirring and venting hollow rod 18; the spring 14 connects the baffle 13 and the inner wall of the thin shell 9, and is used to provide elasticity so that the insertion rod 10 can be inserted into the inner wall of the collection tray 8 in a suitable state to achieve fixation; the insertion rod 10 can be inserted into the inner wall of the collection tray 8 to achieve fixation. The connecting rod 10 passes through the fixing block 7 and inserts into the inner wall of the collection drawer 8 to fix the collection drawer 8 and prevent it from accidentally sliding out; the baffle 13 slides on the inner wall of the thin shell 9 and works with the connecting rod 10 to achieve fixing and disassembly operations; the lower part of the blocking rod 12 slides inside the thin shell 9 and the upper part slides inside the anti-detachment rod 11 to prevent the spring 14 from pushing the connecting rod 10 into the collection drawer 8 by mistake when disassembling the collection drawer 8; the limiting plate 26 slides on the inner wall of the hollow shell 25 to limit the movement range of the scraper 27; the scraper 27 abuts against the inner wall of the mixing tank 34 to scrape off the absorbent liquid residue on the inner wall of the mixing tank 34 when the hollow rod 18 rotates, promoting full mixing of gas and liquid.

[0040] Working principle: Organic waste gas enters the filter box 1 through the inlet pipe 2. The filter screen 6 intercepts and filters particulate matter and other impurities in the waste gas. When a lot of impurities accumulate on the surface of the filter screen 6, the cylinder 3 is activated. The cylinder 3 pushes the L-shaped rod 4, causing the brush 5 to clean the filter screen 6. The cleaned impurities fall into the collection tray 8. When the collection tray 8 is full, the plug rod 10 is pulled to move the baffle 13 and compress the spring 14 until the plug rod 10 is completely detached from the collection tray 8. At this time, the blocking rod 12 slides into the thin shell 9 under the action of gravity. This is to prevent the baffle 13 from being pushed by the spring 14 and thus the plug rod 10 from being inserted into the collection tray 8 again. The collection tray 8 can then be pulled out for cleaning. After cleaning, the collection tray 8 is inserted into the fixing block 7. The blocking rod 12 is pulled upward. Under the action of the spring 14, the plug rod 10 is reinserted into the collection tray 8 to achieve fixation.

[0041] The filtered waste gas enters the hollow block 17 through the connecting pipe 16, and then enters the mixing tank 34 through the air outlet of the stirring and venting hollow rod 18. The motor 22 is started, and the motor 22 drives the gear 21 to rotate. The gear 21 meshes with the gear ring 20, causing the stirring and venting hollow rod 18 to rotate. This not only disperses the waste gas in the mixing tank 34, but also drives the scraping component to rotate through the connecting rod 24. During the rotation, the scraper 27, under the action of the spring 28 and the limiting plate 26, always abuts against the inner wall of the mixing tank 34, scraping off the absorbent residue adhering to the inner wall of the mixing tank 34, promoting full contact between gas and liquid. The absorbent enters the mixing tank 34 from the liquid inlet 23 and fully mixes with the waste gas to absorb the organic waste gas.

[0042] After absorption and treatment, the gas rises into the treatment chamber 29, where it is further adsorbed and purified by the activated carbon filter 31, and finally discharged through the gas outlet 30. The absorbent liquid after absorption saturation can be discharged through the liquid outlet 32 ​​for subsequent treatment or replacement.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An organic waste gas absorption pretreatment device, comprising a filter box (1) and a mixing tank (34), characterized in that: An air inlet pipe (2) is fixedly connected to the left side of the filter box (1). A filter screen (6) is fixedly connected inside the filter box (1). A cleaning and collection assembly is provided on the outside of the filter screen (6). A connecting pipe (16) is fixedly connected to the right side of the filter box (1). A support block (19) is fixedly connected to the bottom of the mixing tank (34). A hollow block (17) is fixedly connected to the outside of the support block (19). A motor (22) is fixedly connected to the outside of the support block (19). A gear (21) is fixedly connected to the output end of the motor (22). A stirring and air-exiting hollow rod (18) is rotatably connected inside the hollow block (17). A gear ring (20) is fixedly connected to the outside of the stirring and air-exiting hollow rod (18). 0) meshes with the gear (21), the stirring and venting hollow rod (18) has multiple vent holes on its outer side, multiple connecting rods (24) are fixedly connected to the outer side of the stirring and venting hollow rod (18), a scraping component is provided on the outer side of the connecting rod (24), a processing box (29) is fixedly connected to the top of the stirring tank (34), an activated carbon filter (31) is fixedly connected inside the processing box (29), an vent pipe (30) is fixedly connected to the top of the processing box (29), a liquid inlet (23) is fixedly connected to the upper part of the outer side of the stirring tank (34), a support frame (33) is fixedly connected to the outer side of the stirring tank (34), and two supports (15) are fixedly connected to the outer side of the filter box (1). The cleaning and collection assembly includes a fixed block (7) and a cylinder (3). The fixed block (7) is fixedly connected to the bottom of the filter box (1) on the outside. The cylinder (3) is fixedly connected to the right side of the filter box (1) on the outside. An L-shaped rod (4) is fixedly connected to the output end of the cylinder (3). A brush (5) is fixedly connected to the outside of the L-shaped rod (4). A collection tray (8) is slidably connected inside the fixed block (7). Two thin shells (9) are fixedly connected to the outside of the fixed block (7). An anti-detachment rod (11) is fixedly connected to the top of the thin shell (9). A plug rod (10) is slidably connected inside the thin shell (9). A baffle (13) is fixedly connected to the outside of the plug rod (10). A spring (14) is sleeved on the outside of the plug rod (10). A blocking rod (12) is provided at the bottom of the baffle (13).

2. The organic waste gas absorption pretreatment device according to claim 1, characterized in that: The scraping assembly includes a hollow shell (25), the outer side of which is fixedly connected to the outer side of the connecting rod (24), and a plurality of springs (28) are fixedly connected to the inner wall of the hollow shell (25). A limiting plate (26) is fixedly connected to the end of the springs (28) away from the hollow shell (25), and a scraper (27) is fixedly connected to the outer side of the limiting plate (26).

3. The organic waste gas absorption pretreatment device according to claim 1, characterized in that: The bottom of the mixing tank (34) is fixedly connected to a liquid outlet (32), and a valve is provided on the outside of the liquid outlet (32).

4. The organic waste gas absorption pretreatment device according to claim 1, characterized in that: The outer side of the stirring and venting hollow rod (18) is rotatably connected to the inside of the stirring tank (34), and the end of the connecting pipe (16) away from the filter box (1) is fixedly connected to the outer side of the hollow block (17).

5. The organic waste gas absorption pretreatment device according to claim 1, characterized in that: One end of the spring (14) is fixedly connected to the outside of the baffle (13), and the other end of the spring (14) is fixedly connected to the inner wall of the thin shell (9).

6. The organic waste gas absorption pretreatment device according to claim 1, characterized in that: The plug rod (10) passes through the fixing block (7) and is inserted into the inner wall of the collection drawer (8), and the outer side of the baffle (13) is slidably connected to the inner wall of the thin shell (9).

7. The organic waste gas absorption pretreatment device according to claim 1, characterized in that: The lower outer part of the barrier bar (12) is slidably connected to the inside of the thin shell (9), and the upper outer part of the barrier bar (12) is slidably connected to the inner wall of the anti-detachment bar (11).

8. The organic waste gas absorption pretreatment device according to claim 2, characterized in that: The limiting plate (26) is slidably connected to the inner wall of the hollow shell (25) on the outside, and the scraper (27) abuts against the inner wall of the mixing tank (34).

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