High-efficiency purification device for waste gas of coating machine
By combining a plasma purifier and a multi-layer activated carbon filter, the problem of poor exhaust gas purification effect of the coating machine is solved, achieving efficient purification and convenient maintenance, and ensuring environmentally friendly emissions.
Patent Information
- Application Number
- CN202423034405.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-10
Smart Images
Figure CN223490714U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating machine exhaust gas purification technology, and in particular to a high-efficiency purification device for coating machine exhaust gas. Background Technology
[0002] The exhaust gas from coating machines mainly comes from the volatilization of organic solvents during the coating and drying processes. These exhaust gases are complex in composition, containing various pollutants such as esters, alcohols, ketones, and benzenes, including ethyl acetate, methanol, ethanol, butanone, methyl ethyl ketone, and toluene. If they are discharged directly into the atmosphere without treatment, they will cause serious environmental pollution and pose a threat to the health of production workers.
[0003] Traditional coating machine exhaust gas purification devices typically use single activated carbon adsorption. While this can reduce pollutants in the exhaust gas to some extent, it is difficult to achieve the desired purification effect for high-concentration, complex organic exhaust gases, resulting in poor exhaust gas treatment. Therefore, we propose a high-efficiency purification device for coating machine exhaust gas. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a high-efficiency purification device for coating machine exhaust gas.
[0005] This utility model is achieved using the following technical solution: a high-efficiency purification device for coating machine exhaust gas, comprising a suction hood, a support frame fixedly connected to the bottom of the suction hood, a suction pipe connected to the top of the support frame, a diversion pipe connected to the inner wall of the suction pipe, a fixed pipe fixedly connected to one end of the suction pipe, a first exhaust fan installed on the inner wall of the fixed pipe, an exhaust pipe fixedly connected to the right end of the fixed pipe, a filter box fixedly connected to the end of the exhaust pipe away from the fixed pipe, an exhaust hood fixedly connected to the top of the filter box, a second exhaust fan installed on the inner wall of the exhaust hood, a plasma purifier installed inside the filter box, and a first activated carbon filter and a second activated carbon filter installed inside the filter box.
[0006] The above technical solution utilizes low-temperature plasma technology to treat waste gas using a plasma purifier, decomposing and oxidizing organic pollutants in the waste gas. The treated waste gas is then discharged into the interior of a filter box, where it passes through a first activated carbon filter and a second activated carbon filter to adsorb harmful substances. This method can efficiently remove various pollutants from the waste gas, improve the treatment effect, ensure that the emitted gas meets environmental protection standards, and reduce environmental pollution.
[0007] As a further improvement to the above solution, the end of the diversion pipe furthest from the intake pipe is connected to the air intake hood, and the left end of the plasma purifier is connected to the right end of the exhaust pipe.
[0008] Using the above technical solution, the exhaust gas purified by the plasma purifier is discharged into the filter box through the right side.
[0009] As a further improvement to the above solution, the plasma purifier is located at the lower end of the first activated carbon filter, and a guide rail is fixedly connected to the inner wall of the filter box.
[0010] The above technical solution provides four guide rails, which facilitates the installation of the first and second activated carbon filters.
[0011] As a further improvement to the above solution, the surfaces of both the first activated carbon filter and the second activated carbon filter are slidably connected to the inner wall of the guide rail.
[0012] As a further improvement to the above solution, a fixing plate is fixedly connected to the top of the first activated carbon filter, and the top of the fixing plate is fixedly connected to the bottom of the second activated carbon filter.
[0013] The above technical solution allows for easy movement of the first and second activated carbon filters via a fixed plate, facilitating their disassembly and removal.
[0014] As a further improvement to the above solution, a mounting bracket is fixedly connected to the top of the inner wall of the suction hood, and a filter screen is fixedly connected to the bottom of the mounting bracket.
[0015] The above technical solution uses a filter screen to initially filter solid particulate matter in the exhaust gas.
[0016] As a further improvement to the above solution, the front end of the filter box is hinged with an inspection door, the front end of the inspection door is provided with an observation window, and the front end of the inspection door is fixedly connected with a handle.
[0017] The above technical solution allows for easy maintenance of the filter box's interior through the inspection door and easy observation of the filter box's interior through the observation window.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This invention utilizes a plasma purifier, a first activated carbon filter, and a second activated carbon filter. Specifically, by activating a first exhaust fan, waste gas generated by the coating machine is drawn in. The waste gas undergoes preliminary filtration through a filter screen at the top of the inner wall of the suction hood. After preliminary filtration, the waste gas enters the intake pipe and the distribution pipe, and then enters the plasma purifier through the exhaust pipe. The plasma purifier uses low-temperature plasma technology to treat the waste gas, decomposing and oxidizing organic pollutants. The treated waste gas is then discharged into the filter box, where it passes through the first and second activated carbon filters to adsorb harmful substances. This highly efficient method removes various pollutants from the waste gas, improves the treatment effect, ensures that the emitted gas meets environmental protection standards, and reduces environmental pollution.
[0020] This utility model, by setting up a guide rail, a fixing plate, and an inspection door, allows the first and second activated carbon filters to be slid out along the guide rail when it is necessary to replace them. This facilitates subsequent maintenance and improves the convenience of use. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic cross-sectional view of the present invention.
[0023] Figure 3 This is a schematic diagram of the internal structure of the filter box of this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of the first activated carbon filter and the second activated carbon filter of this utility model;
[0025] Figure 5 This is a schematic diagram of the structure of this utility model viewed from below.
[0026] Explanation of key symbols:
[0027] 1. Exhaust hood; 2. Support frame; 3. Intake pipe; 4. Diverter pipe; 5. Fixing pipe; 6. First exhaust fan; 7. Exhaust pipe; 8. Filter box; 9. Exhaust hood; 10. Second exhaust fan; 11. Plasma purifier; 12. First activated carbon filter; 13. Second activated carbon filter; 14. Guide rail; 15. Fixing plate; 16. Mounting bracket; 17. Filter screen; 18. Inspection door. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0029] Example:
[0030] Please combine Figure 1-5 This embodiment of a high-efficiency purification device for coating machine exhaust gas includes a suction hood 1. A support frame 2 is fixedly connected to the bottom of the suction hood 1. A suction pipe 3 is connected to the top of the support frame 2. A diversion pipe 4 is connected to the inner wall of the suction pipe 3. A fixed pipe 5 is fixedly connected to one end of the suction pipe 3. A first exhaust fan 6 is installed on the inner wall of the fixed pipe 5. An exhaust pipe 7 is fixedly connected to the right end of the fixed pipe 5. A filter box 8 is fixedly connected to the end of the exhaust pipe 7 away from the fixed pipe 5. An exhaust hood 9 is fixedly connected to the top of the filter box 8. A second exhaust fan 10 is installed on the inner wall of the exhaust hood 9. A plasma purifier 11 is installed inside the filter box 8. A first activated carbon filter 12 and a second activated carbon filter 13 are installed inside the filter box 8. The suction hood 1 is fixed above the coating machine by the support frame 2. Then, the first exhaust fan 6 is started to extract the coating gas. The exhaust gas generated by the machine is initially filtered through the filter screen 17 at the top of the inner wall of the suction hood 1. After initial filtration, the exhaust gas enters the interior of the suction pipe 3 and the diversion pipe 4. The exhaust gas then enters the interior of the plasma purifier 11 through the exhaust pipe 7. The plasma purifier 11 uses low-temperature plasma technology to treat the exhaust gas, decomposing and oxidizing the organic pollutants in the exhaust gas. The treated exhaust gas is then discharged into the interior of the filter box 8, where it passes through the first activated carbon filter screen 12 and the second activated carbon filter screen 13 to adsorb harmful substances in the exhaust gas. This process can efficiently remove multiple pollutants from the exhaust gas, improve the treatment effect of the exhaust gas, ensure that the emitted gas meets environmental protection standards, and reduce environmental pollution. The second exhaust fan 10 is then activated, and the second exhaust fan 10 discharges the purified exhaust gas inside the filter box 8 through the exhaust hood 9, ensuring that the purified gas is discharged smoothly.
[0031] The end of the diversion pipe 4 furthest from the intake pipe 3 is connected to the air intake hood 1, and the left end of the plasma purifier 11 is connected to the right end of the exhaust pipe 7.
[0032] The plasma purifier 11 is located at the lower end of the first activated carbon filter 12, and the inner wall of the filter box 8 is fixedly connected to the guide rail 14.
[0033] The surfaces of the first activated carbon filter 12 and the second activated carbon filter 13 are both slidably connected to the inner wall of the guide rail 14.
[0034] A fixing plate 15 is fixedly connected to the top of the first activated carbon filter 12. The top of the fixing plate 15 is fixedly connected to the bottom of the second activated carbon filter 13. The first activated carbon filter 12 and the second activated carbon filter 13 are pulled by the fixing plate 15 so that they can slide out along the guide rail 14, which facilitates subsequent inspection and maintenance and improves the convenience of use.
[0035] A mounting bracket 16 is fixedly connected to the top of the inner wall of the suction hood 1, and a filter screen 17 is fixedly connected to the bottom of the mounting bracket 16.
[0036] The front end of the filter box 8 is hinged with an inspection door 18, the front end of the inspection door 18 is provided with an observation window, and the front end of the inspection door 18 is fixedly connected with a handle.
[0037] The implementation principle of the high-efficiency purification device for coating machine exhaust gas in this embodiment is as follows: During use, the suction hood 1 is fixed above the coating machine via the support frame 2. Then, the first exhaust fan 6 is started to extract the exhaust gas generated by the coating machine. The exhaust gas undergoes preliminary filtration through the filter screen 17 at the top of the inner wall of the suction hood 1. The pre-filtered exhaust gas enters the interior of the suction pipe 3 and the diversion pipe 4. The exhaust gas then enters the interior of the plasma purifier 11 through the exhaust pipe 7. The plasma purifier 11 uses low-temperature plasma technology to treat the exhaust gas, decomposing and oxidizing the organic pollutants in the exhaust gas. The treated exhaust gas is discharged into the interior of the filter box 8, and then passes through the first activated carbon filter 12 and the second... Activated carbon filter 13 adsorbs harmful substances in the exhaust gas, effectively removing various pollutants and ensuring that the emitted gas meets environmental protection standards, reducing environmental pollution. Then, the second exhaust fan 10 is activated, expelling the purified exhaust gas from the filter box 8 through the exhaust hood 9, ensuring smooth discharge of the purified gas. When the first activated carbon filter 12 and the second activated carbon filter 13 need to be replaced, the inspection door 18 is opened, and the first and second activated carbon filters 12 and 13 are pulled along the guide rail 14 by the fixing plate 15, facilitating subsequent maintenance and improving ease of use. The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model are within the scope of protection claimed by this utility model.
Claims
1. A high-efficiency purification device for exhaust gas from a coating machine, characterized in that, The device includes a suction hood (1), a support frame (2) fixedly connected to the bottom of the suction hood (1), a suction pipe (3) connected to the top of the support frame (2), a diversion pipe (4) connected to the inner wall of the suction pipe (3), a fixed pipe (5) fixedly connected to one end of the suction pipe (3), a first exhaust fan (6) installed on the inner wall of the fixed pipe (5), an exhaust pipe (7) fixedly connected to the right end of the fixed pipe (5), a filter box (8) fixedly connected to the end of the exhaust pipe (7) away from the fixed pipe (5), an exhaust hood (9) fixedly connected to the top of the filter box (8), a second exhaust fan (10) installed on the inner wall of the exhaust hood (9), a plasma purifier (11) installed inside the filter box (8), and a first activated carbon filter (12) and a second activated carbon filter (13) installed inside the filter box (8).
2. The high-efficiency purification device for coating machine exhaust gas as described in claim 1, characterized in that: The end of the diversion pipe (4) away from the air intake pipe (3) is connected to the air intake hood (1), and the left end of the plasma purifier (11) is connected to the right end of the air outlet pipe (7).
3. The high-efficiency purification device for coating machine exhaust gas as described in claim 1, characterized in that: The plasma purifier (11) is located at the lower end of the first activated carbon filter (12), and the inner wall of the filter box (8) is fixedly connected with a guide rail (14).
4. The high-efficiency purification device for coating machine exhaust gas as described in claim 1, characterized in that: The surfaces of the first activated carbon filter (12) and the second activated carbon filter (13) are slidably connected to the inner wall of the guide rail (14).
5. The high-efficiency purification device for coating machine exhaust gas as described in claim 4, characterized in that: A fixing plate (15) is fixedly connected to the top of the first activated carbon filter (12), and the top of the fixing plate (15) is fixedly connected to the bottom of the second activated carbon filter (13).
6. The high-efficiency purification device for coating machine exhaust gas as described in claim 2, characterized in that: The top of the inner wall of the suction hood (1) is fixedly connected to a mounting bracket (16), and the bottom of the mounting bracket (16) is fixedly connected to a filter screen (17).
7. The high-efficiency purification device for coating machine exhaust gas as described in claim 3, characterized in that: The front end of the filter box (8) is hinged with an inspection door (18), the front end of the inspection door (18) is provided with an observation window, and the front end of the inspection door (18) is fixedly connected with a handle.