A waste gas treatment device for paint production

Abstract

The utility model discloses a waste gas treatment device for paint production, concretely relates to waste gas treatment technical field, including box, the inner chamber bottom fixed connection of box has first partition and jet box, the bottom fixed connection of box has motor, and the output of motor is connected with the rotary rod, and the surface fixed connection of rotary rod has spiral blade. The utility model first through starting waterproof liquid pump can be with the liquid input of first partition one side deposition water tank inside and carry out deposition, then through starting liquid pump and input the liquid of deposition inside water spray pipe and spray out through the nozzle to the gas separated from the liquid in the box interior carries out secondary dust particle removal, improves dust removal purification effect, realizes the circulation use of liquid in the box interior simultaneously, and reaches the effect of the impurity filtration removal of liquid in the box interior, improves the continuity and work efficiency of waste gas treatment, and simultaneously does not influence the removal effect of dust particle in waste gas, improves purification effect.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and more specifically, to a waste gas treatment device for paint production. Background Technology

[0002] The paint production process generates a large amount of complex waste gas, the main components of which include volatile organic compounds (VOCs) such as benzene, toluene, and xylene, pigment dust such as titanium dioxide and carbon black, and irritating odors produced by resin decomposition. Waste gas treatment equipment is required during the paint production process. Waste gas treatment, or waste gas purification, mainly refers to the treatment of industrial waste gases generated in industrial sites, such as particulate matter, flue gas, odorous gases, and toxic and harmful gases.

[0003] Chinese patent CN219596220U discloses a waste gas treatment device for paint production, including a treatment box. An exhaust pipe is connected to the top of the treatment box, and an inlet pipe is connected to the left side of the treatment box. A filter screen is fixedly installed inside the inlet pipe. A stirring mechanism with one end penetrating and extending into the bottom of the treatment box is provided. An automatic filter cleaning mechanism is provided at the bottom of the inlet pipe. This waste gas treatment device for paint production, through its filter screen, can filter and intercept dust and impurities in the waste gas, effectively preventing dust and impurities from entering the pipe and causing blockage, thus achieving efficient waste gas treatment. Furthermore, the automatic cleaning mechanism can clean the filter screen automatically, eliminating the need for manual operation, thus simplifying the user experience and improving the practicality of the device.

[0004] However, as can be seen from the accompanying drawings in the instruction manual, after the gas is filtered, it is fed into the liquid and impurities in the gas are removed by stirring. During continuous use, as the impurities in the liquid increase, the quality of impurity removal from the gas will be affected. Therefore, the liquid needs to be replaced regularly, which wastes water resources. Moreover, the treatment needs to be stopped during the liquid replacement process, which affects the continuity and efficiency of the waste gas treatment. Therefore, a waste gas treatment device for paint production is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a waste gas treatment device for paint production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste gas treatment device for paint production, comprising a housing, wherein a first partition plate and a jet box are fixedly connected to the bottom of the inner cavity of the housing; pressurized waste gas is ejected in a fine stream through small holes in the jet box, increasing the contact area with the liquid; the first partition plate prevents gas from entering the side of the first partition plate away from the jet box; a motor is fixedly connected to the bottom of the housing, and a rotating rod is connected to the output end of the motor; a spiral blade is fixedly connected to the surface of the rotating rod; starting the motor controls the rotating rod to drive the spiral blade to rotate, which can stir the liquid, prolong the contact time between the gas and the liquid, and improve the absorption and dust removal effect; a first flow stabilizing plate is fixedly connected to one side of the top of the first partition plate, which prevents the absorption liquid from splashing due to airflow turbulence;

[0007] The first flow stabilizer plate has multiple water spray pipes at its top and nozzles at its bottom. Liquid can be sprayed through the water spray pipes and nozzles to remove dust and impurities from the gas. A sedimentation tank is fixedly connected to one side of the housing. A second flow stabilizer plate, a second partition plate, and a waterproof liquid pump are fixedly connected to the middle of the sedimentation tank. A liquid pump is fixedly connected to the top of the waterproof liquid pump. Activating the waterproof liquid pump can input the liquid inside the housing into the sedimentation tank for sedimentation. Then, the second flow stabilizer plate and the second partition plate separate and stabilize the flow, so that the sedimented liquid is located on the side of the second partition plate away from the second flow stabilizer plate. The liquid pump can input the purified liquid into the water spray pipes and spray it out through the nozzles to improve the dust removal effect.

[0008] Preferably, an activated carbon adsorption plate and multiple ultraviolet lamps are fixedly connected to the top of the inner cavity of the box. The ultraviolet lamps are set on top of the activated carbon adsorption plate. The activated carbon adsorption plate absorbs the residual harmful gases in the gas, and the ultraviolet lamps decompose some of the VOCs adsorbed on the surface of the activated carbon, thereby playing a bactericidal role and improving the waste gas treatment effect.

[0009] Preferably, the top of the tank is connected to an exhaust pipe, a fan is installed in the middle of the exhaust pipe, an observation window is provided on one side of the sedimentation tank, and an operation panel is provided on the top of the sedimentation tank. The fan discharges the gas inside the tank through the exhaust pipe, the observation window allows observation of both sides of the pure liquid inside the sedimentation tank, and the operation panel facilitates operation and control.

[0010] Preferably, the input end of the waterproof liquid pump is connected to the inner cavity of the tank and is located on the side of the first partition plate away from the first flow stabilizer plate. The output end of the waterproof liquid pump is located on the side of the second flow stabilizer plate away from the second partition plate. Activating the waterproof liquid pump can input the liquid on the side of the first partition plate into the sedimentation tank, preventing gas from entering the sedimentation tank.

[0011] Preferably, a connecting pipe is fixedly connected to one side of the tank body, and the connecting pipe is connected to one end of a plurality of spray pipes. The input end of the liquid pump is located on the side of the second partition plate away from the second flow stabilizer plate, and the output end of the liquid pump is connected to one end of the spray pipe. The second flow stabilizer plate is fixed to the top of the inner cavity of the sedimentation tank, and the second partition plate is fixed to the bottom of the inner cavity of the sedimentation tank. When the liquid pump is started, the liquid on one side of the second partition plate can be input into the interior of the spray pipe through the connecting pipe and sprayed out through the nozzle for secondary dust removal, thereby improving the dust removal and purification effect. The second flow stabilizer plate can stabilize the liquid surface entering the sedimentation tank. The second partition plate can allow pure liquid to flow through the top of the second partition plate into the side of the second partition plate away from the second flow stabilizer plate.

[0012] Preferably, the jet box and the spiral blade are both located directly below the first flow stabilizer plate. The jet box and the spiral blade are offset. The top of the jet box is provided with a small jet hole. The first partition plate prevents the gas generated by the jet box from entering the side of the first partition plate away from the jet box. The first flow stabilizer plate increases the contact time between the gas and the liquid.

[0013] Preferably, a filter box is fixedly connected to the side of the box away from the sedimentation tank, and a booster pump is provided on the top of the filter box. The output end of the booster pump is connected to the inner cavity of the jet box, and the input end of the booster pump is connected to the inner cavity of the filter box. The booster pump can input the filtered gas into the interior of the jet box at high pressure.

[0014] Preferably, two fixed frames are inserted into the top of the filter box, and a filter screen is provided in the middle of the fixed frame. An air inlet pipe is fixedly connected to one side of the filter box. The incoming gas is initially filtered and dust is removed through the filter screen. By setting two fixed frames and a filter screen, the normal use of the other filter screen can be maintained when one is removed and replaced.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model firstly introduces a waterproof liquid pump to input liquid from one side of the first partition plate into a sedimentation tank for sedimentation. Then, by starting the liquid pump, the sedimented liquid is input into a spray pipe and sprayed out through a nozzle to remove dust particles from the gas separated from the liquid inside the tank, thereby improving the dust removal and purification effect. At the same time, it realizes the recycling of the liquid inside the tank and achieves the function of filtering and removing impurities from the liquid inside the tank, improving the continuity and efficiency of waste gas treatment, without affecting the removal effect of dust particles in the waste gas, thus improving the purification effect.

[0017] 2. This utility model also uses activated carbon adsorption plates to absorb residual harmful gases and odors in the gas, and uses ultraviolet lamps for sterilization treatment, and decomposes some of the VOCs adsorbed on the surface of activated carbon. Through the cooperation of the first partition plate and the first flow stabilizing plate, the gas inside the chamber can be prevented from entering the sedimentation tank, and the contact time between gas and liquid can be increased, further improving the removal quality. The filter screen can perform preliminary filtration treatment on the gas about to enter the chamber, reducing the processing burden inside the chamber and improving the use effect.

[0018] In summary, through the interaction of the above-mentioned multiple functions, the liquid inside the tank can be easily recycled, and impurities in the liquid inside the tank can be filtered and removed, improving the continuity and efficiency of waste gas treatment, while not affecting the removal effect of dust particles in the waste gas, thus improving the purification effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the box body of this utility model.

[0022] The attached diagram is labeled as follows: 1. Box body; 2. First partition plate; 3. Air jet box; 4. Motor; 5. Rotating rod; 6. Spiral blade; 7. First flow stabilizer plate; 8. Water spray pipe; 9. Nozzle; 10. Activated carbon adsorption plate; 11. Ultraviolet lamp column; 12. Sedimentation tank; 13. Second flow stabilizer plate; 14. Liquid pump; 15. Second partition plate; 16. Waterproof liquid pump; 17. Filter box; 18. Booster air pump; 19. Fixing frame; 20. Filter screen plate; 21. Observation window. Detailed Implementation

[0023] 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.

[0024] As attached Figure 1-3The waste gas treatment device for paint production shown includes a housing 1. A first partition plate 2 and a jet box 3 are fixedly connected to the bottom of the inner cavity of the housing 1. The pressurized waste gas is sprayed out in a fine stream through the small holes of the jet box 3 to increase the contact area with the liquid. The first partition plate 2 prevents the gas from entering the side of the first partition plate 2 away from the jet box 3. A motor 4 is fixedly connected to the bottom of the housing 1. A rotating rod 5 is connected to the output end of the motor 4. A spiral blade 6 is fixedly connected to the surface of the rotating rod 5. Starting the motor 4 controls the rotating rod 5 to drive the spiral blade 6 to rotate, which can stir the liquid, prolong the contact time between the gas and the liquid, and improve the absorption and dust removal effect. A first flow stabilizing plate 7 is fixedly connected to one side of the top of the first partition plate 2. The first flow stabilizing plate 7 prevents the absorption liquid from splashing due to airflow turbulence.

[0025] The top of the first flow stabilizer 7 is equipped with multiple water spray pipes 8, and the bottom of the water spray pipes 8 is equipped with nozzles 9. Liquid can be sprayed through the water spray pipes 8 and nozzles 9 to remove dust and impurities in the gas for a secondary removal. A sedimentation tank 12 is fixedly connected to one side of the housing 1. A second flow stabilizer 13, a second partition plate 15, and a waterproof liquid pump 16 are fixedly connected to the middle of the sedimentation tank 12. A liquid pump 14 is fixedly connected to the top of the waterproof liquid pump 16. When the waterproof liquid pump 16 is started, the liquid inside the housing 1 can be input into the sedimentation tank 12 for sedimentation. Then, the second flow stabilizer 13 and the second partition plate 15 separate and stabilize the flow, so that the sedimented liquid is located on the side of the second partition plate 15 away from the second flow stabilizer 13. The liquid pump 14 can input the purified liquid into the water spray pipes 8 and spray it out through the nozzles 9 to improve the dust removal effect.

[0026] As attached Figure 1-3As shown, an activated carbon adsorption plate 10 and multiple ultraviolet lamp columns 11 are fixedly connected to the top of the inner cavity of the box 1. The ultraviolet lamp columns 11 are located on top of the activated carbon adsorption plate 10. An exhaust pipe is connected to the top of the box 1, and a fan is installed in the middle of the exhaust pipe. An observation window 21 is provided on one side of the sedimentation tank 12, and an operation panel is provided on the top of the sedimentation tank 12. The input end of the waterproof liquid pump 16 is connected to the inner cavity of the box 1 and is located on the side of the first partition plate 2 away from the first flow stabilizing plate 7. The output end of the waterproof liquid pump 16 is located on the second flow stabilizing plate 13 away from the second partition plate 15. On one side of the housing 1, a connecting pipe is fixedly connected to one side, and the connecting pipe is connected to one end of multiple spray pipes 8. The input end of the liquid pump 14 is located on the side of the second partition plate 15 away from the second flow stabilizer plate 13, and the output end of the liquid pump 14 is connected to one end of the spray pipe 8. The second flow stabilizer plate 13 is fixed to the top of the inner cavity of the sedimentation tank 12, and the second partition plate 15 is fixed to the bottom of the inner cavity of the sedimentation tank 12. The jet box 3 and the spiral blade 6 are both located directly below the first flow stabilizer plate 7. The jet box 3 and the spiral blade 6 are offset. The top of the jet box 3 is provided with a small jet hole, through which... The activated carbon adsorption plate 10 absorbs residual harmful gases in the gas, and the ultraviolet lamp column 11 decomposes some of the VOCs adsorbed on the surface of the activated carbon, thus playing a sterilization role and improving the waste gas treatment effect. The gas inside the chamber 1 is discharged through the exhaust pipe by the fan. The two sides of the pure liquid inside the sedimentation tank 12 can be observed through the observation window 21. The operation and control are convenient through the control panel. Starting the waterproof liquid pump 16 can input the liquid on one side of the first partition plate 2 into the sedimentation tank 12 to prevent gas from entering the sedimentation tank 12. And by starting the liquid pump 14, the liquid can be... Liquid on one side of the second partition plate 15 is fed into the interior of the spray pipe 8 through the connecting pipe and sprayed out through the nozzle 9 for secondary dust removal, improving the dust removal and purification effect. The second flow stabilizer plate 13 can stabilize the liquid surface entering the sedimentation tank 12. The second partition plate 15 allows pure liquid to flow through the top of the second partition plate 15 into the side of the second partition plate 15 away from the second flow stabilizer plate 13. The first partition plate 2 prevents the gas generated by the jet box 3 from entering the side of the first partition plate 2 away from the jet box 3. The first flow stabilizer plate 7 increases the contact time between the gas and the liquid.

[0027] As attached Figure 1 , 2As shown, a filter box 17 is fixedly connected to the side of the housing 1 away from the sedimentation tank 12. A booster pump 18 is installed on the top of the filter box 17. The output end of the booster pump 18 is connected to the inner cavity of the jet box 3, and the input end of the booster pump 18 is connected to the inner cavity of the filter box 17. Two fixed frames 19 are inserted into the top of the filter box 17. A filter screen 20 is installed in the middle of the fixed frame 19. An air inlet pipe is fixedly connected to one side of the filter box 17. The booster pump 18 can input the filtered gas into the interior of the jet box 3 under high pressure. The filter screen 20 performs preliminary filtration and dust removal on the incoming gas. By setting two fixed frames 19 and filter screen 20, the normal use of the other filter screen 20 can be maintained when one is removed and replaced.

[0028] It is worth noting that the waterproof liquid pump 16 described in this application is a submersible pump, and the booster air pump 18 is a gas booster pump. The specific model of the waterproof liquid pump 16 is QZ750-4045, which is prior art and will not be described in detail here.

[0029] Furthermore, motor 4 is a servo motor with an encoder, which makes the number of rotations and rotation angle of the motor output shaft controllable and highly accurate. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0030] The working principle of this utility model is as follows: When in use, the exhaust gas is introduced into the filter box 17 through the air inlet pipe on one side of the filter box 17. The impurities in the gas are initially filtered by the two filter screens 20. Then, the exhaust gas is introduced into the jet box 3 by starting the booster air pump 18. Bubbles are generated in the liquid inside the box 1, so that the liquid adsorbs the impurities in the gas.

[0031] Simultaneously, the motor 4 is started to stir the liquid, and with the cooperation of the first flow stabilizer 7, the contact time between the gas and the liquid is extended. At the same time, the waterproof liquid pump 16 and the liquid pump 14 are started to input the liquid inside the tank 1 into the sedimentation tank 12 for sedimentation. Then, the liquid pump 14 is started to input the sedimented liquid into the spray pipe 8 and spray it out through the nozzle 9 for secondary purification. It can also precipitate and purify the liquid inside the tank 1, improve the service life, and does not affect the continuous filtration to remove dust and impurities from the gas.

[0032] The gas is adsorbed by the activated carbon adsorption plate 10 to remove harmful ions and odors, and then sterilized by the ultraviolet lamp column 11 before being discharged through the exhaust pipe and fan at the top of the box 1.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. A waste gas treatment device for paint production, comprising a housing (1), characterized in that: The bottom of the inner cavity of the box (1) is fixedly connected to a first partition plate (2) and a jet box (3). The bottom of the box (1) is fixedly connected to a motor (4). The output end of the motor (4) is connected to a rotating rod (5). The surface of the rotating rod (5) is fixedly connected to a spiral blade (6). The top side of the first partition plate (2) is fixedly connected to a first flow stabilizer plate (7). The top of the first flow stabilizer plate (7) is provided with multiple water spray pipes (8), and the bottom of the water spray pipes (8) is provided with nozzles (9). A sedimentation tank (12) is fixedly connected to one side of the box body (1). A second flow stabilizer plate (13), a second partition plate (15), and a waterproof liquid pump (16) are fixedly connected to the middle of the sedimentation tank (12). A liquid pump (14) is fixedly connected to the top of the waterproof liquid pump (16).

2. The waste gas treatment device for paint production according to claim 1, characterized in that: An activated carbon adsorption plate (10) and multiple ultraviolet lamp columns (11) are fixedly connected to the top of the inner cavity of the box (1), and the ultraviolet lamp columns (11) are set on the top of the activated carbon adsorption plate (10).

3. The waste gas treatment device for paint production according to claim 1, characterized in that: The top of the box (1) is connected to an exhaust pipe, and a fan is installed in the middle of the exhaust pipe. An observation window (21) is provided on one side of the sedimentation tank (12), and an operation panel is provided on the top of the sedimentation tank (12).

4. The waste gas treatment device for paint production according to claim 1, characterized in that: The input end of the waterproof liquid pump (16) is connected to the inner cavity of the housing (1) and is located on the side of the first partition plate (2) away from the first flow stabilizer plate (7). The output end of the waterproof liquid pump (16) is located on the side of the second flow stabilizer plate (13) away from the second partition plate (15).

5. The waste gas treatment device for paint production according to claim 1, characterized in that: A connecting pipe is fixedly connected to one side of the box (1), and the connecting pipe is connected to one end of a plurality of spray pipes (8). The input end of the liquid pump (14) is located on the side of the second partition plate (15) away from the second flow stabilizer plate (13). The output end of the liquid pump (14) is connected to one end of the spray pipe (8) via a connecting pipe. The second flow stabilizer plate (13) is fixed at the top of the inner cavity of the sedimentation tank (12), and the second partition plate (15) is fixed at the bottom of the inner cavity of the sedimentation tank (12).

6. The waste gas treatment device for paint production according to claim 1, characterized in that: The jet box (3) and the spiral blade (6) are both located directly below the first flow stabilizer (7). The jet box (3) and the spiral blade (6) are misaligned. The top of the jet box (3) is provided with a small jet hole.

7. The waste gas treatment device for paint production according to claim 1, characterized in that: A filter box (17) is fixedly connected to the side of the box (1) away from the sedimentation tank (12). A booster pump (18) is provided on the top of the filter box (17). The output end of the booster pump (18) is connected to the inner cavity of the jet box (3), and the input end of the booster pump (18) is connected to the inner cavity of the filter box (17).

8. The waste gas treatment device for paint production according to claim 7, characterized in that: Two fixed frames (19) are inserted into the top of the filter box (17), and a filter screen plate (20) is provided in the middle of the fixed frame (19). An air inlet pipe is fixedly connected to one side of the filter box (17).

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