Waste gas treatment mechanism for plastic spraying

Abstract

The waste gas treatment mechanism comprises a liquid storage cylinder and a square seat, a spraying cylinder is fixedly connected to the upper surface of the liquid storage cylinder, a connecting frame is arranged in the square seat, a fastener is fixedly connected to the front face of the square seat, a filtering piece is installed in the connecting frame, and a spraying cylinder is fixedly connected to the spraying cylinder. And the outer surface of the connecting frame is fixedly connected with a base with an opening, a pump body is fixedly installed on the outer surface of the liquid storage cylinder, and the output end of the pump body fixedly communicates with a through pipe. According to the waste gas treatment mechanism for plastic spraying, the connecting frame and the square seat are matched through the positioning insertion column and the positioning cylinder, and the sealing ring on the bottom surface of the connecting frame is matched with the through hole in the square seat, so that the connecting frame is stably mounted and is convenient to disassemble, and when the filter part is replaced, only the fastener needs to be operated without disassembling a large number of peripheral parts; the connecting frame can be directly taken out from the square seat, so that the replacement time of the filter screen is greatly shortened, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a waste gas treatment mechanism for powder coating. Background Technology

[0002] Powder coating is a surface treatment method that involves spraying plastic powder onto parts. Powder coating is also known as electrostatic powder coating. The plastic powder is charged by a high-voltage electrostatic device, and under the action of an electric field, the coating is sprayed onto the surface of the workpiece. The powder is evenly adsorbed on the surface of the workpiece to form a powdery coating. However, powder coating will generate waste gas, which will have an impact on the environment if it is emitted into the outside world. Therefore, it is necessary to use a waste gas treatment facility to treat it.

[0003] The powder coating process generates waste gas containing volatile organic compounds, dust, and small amounts of harmful gases. If this waste gas is discharged directly without effective treatment, it will cause serious harm to the atmospheric environment and human health. However, existing waste gas treatment methods for powder coating have many problems. Most traditional waste gas treatment institutions do not have a convenient disassembly method specifically designed for filter replacement. Filters are usually fixed by bolts or welding, and disassembly requires multiple tools such as wrenches and screwdrivers. Moreover, the filter or surrounding parts are easily damaged during disassembly, making filter replacement time-consuming and labor-intensive, increasing maintenance costs and equipment downtime. Therefore, we propose a waste gas treatment mechanism for powder coating to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a waste gas treatment mechanism for powder coating, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waste gas treatment mechanism for powder coating includes a liquid storage cylinder and a square base. A spray cylinder is fixedly connected to the upper surface of the liquid storage cylinder. A connecting frame is provided inside the square base. Fasteners are fixedly connected to the front of the square base. A filter element is installed inside the connecting frame. A port seat is fixedly connected to the outer surface of the connecting frame. A pump body is fixedly installed on the outer surface of the liquid storage cylinder. A connecting pipe is fixedly connected to the output end of the pump body. The connecting pipe is connected to the spray cylinder. Multiple spray pipes are fixedly connected to one end of the connecting pipe. An air suction hood and an air guide cylinder are fixedly connected to the outer surface of the spray cylinder. One end of the air guide cylinder is connected to the square base. A fan is fixedly installed on the inner wall of the square base. A discharge pipe is fixedly connected to the right side of the square base.

[0007] In a further embodiment, a drain pipe is provided on the outer surface of the spray cylinder, a liquid filling pipe is fixedly connected to the left side of the liquid storage cylinder, and a liquid level window is provided on the left side of the liquid storage cylinder.

[0008] In a further embodiment, multiple mounting blocks are fixedly connected to the outer surface of the liquid storage cylinder and the outer surface of the square base, and two reinforcing plates are fixedly connected to the outer surface of the liquid storage cylinder and the outer surface of the square base.

[0009] In a further embodiment, the fastener includes a square cylinder mounted on the front of the square base. The inner wall of the square cylinder is rotatably connected to a lead screw via a bearing. The outer surface of the lead screw is threaded with a transmission sleeve. The outer surface of the transmission sleeve is fixedly connected to two transmission plates. Each transmission plate has a limit rod fixedly connected to its outer surface, and the limit rod is adapted to the slotted seat. The inner wall of the square cylinder is fixedly connected to a guide rail, and the interior of the guide rail is slidably connected to the transmission plate.

[0010] In a further embodiment, the filter element includes a coarse filter screen installed on the inner wall of the connecting frame, and a honeycomb activated carbon filter screen, a zeolite molecular sieve filter element and an activated carbon fiber filter element are arranged sequentially on the right side of the coarse filter screen.

[0011] In a further embodiment, a sealing ring is fixedly connected to the bottom surface of the connecting frame, and an opening adapted to the connecting frame is provided on the upper surface of the square seat.

[0012] In a further embodiment, a positioning pin is fixedly connected to the outer surface of the connecting frame, and a positioning cylinder is fixedly connected to the front of the square base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This device uses a connecting frame and a square base, which are fitted with positioning pins and positioning cylinders. The sealing ring on the bottom of the connecting frame matches the opening on the square base, making the connecting frame stable and easy to disassemble. When replacing the filter element, only the fasteners need to be operated, without disassembling a large number of peripheral parts. After loosening the fasteners, the connecting frame can be directly removed from the square base, which greatly shortens the filter replacement time and improves maintenance efficiency. By rotating the screw in the fastener, the transmission sleeve drives the transmission plate and the limit rod to move. The limit rod cooperates with the seat with the opening to tighten or loosen the connecting frame, avoiding the cumbersome and easily damaged problems of traditional bolt tightening methods. This makes filter replacement more convenient and safer, and realizes easy disassembly and replacement.

[0015] The filter components of this device include a coarse filter screen, a honeycomb activated carbon filter screen, a zeolite molecular sieve filter element, and an activated carbon fiber filter element, forming a multi-level filtration system. Through multi-level filtration, it can effectively remove various harmful substances from the powder coating exhaust gas, making the exhaust gas meet the standards and reducing environmental pollution. Attached Figure Description

[0016] Figure 1This is a frontal three-dimensional schematic diagram of a waste gas treatment mechanism for powder coating.

[0017] Figure 2 This is a schematic diagram of the internal structure of the square cylinder in a powder coating exhaust gas treatment device.

[0018] Figure 3 This is a schematic diagram of the internal structure of the spray cylinder in a powder coating exhaust gas treatment system.

[0019] Figure 4 This is a bottom view of the connecting frame in a powder coating exhaust gas treatment mechanism.

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of a waste gas treatment mechanism for powder coating.

[0021] In the diagram: 1. Liquid storage cylinder; 2. Square seat; 3. Fastener; 301. Seat with opening; 302. Square cylinder; 303. Lead screw; 304. Transmission threaded sleeve; 305. Transmission plate; 306. Guide rail; 307. Limiting rod; 4. Spray cylinder; 5. Filter element; 501. Coarse filter screen; 502. Honeycomb activated carbon filter screen; 503. Zeolite molecular sieve filter element; 504. Activated carbon fiber filter element; 6. Positioning insert; 7. Positioning cylinder; 8. Sealing ring; 9. Fan; 10. Discharge pipe; 11. Mounting block; 12. Suction hood; 13. Reinforcing plate; 14. Drain pipe; 15. Air guide cylinder; 16. Pump body; 17. Liquid level window; 18. Liquid filling pipe; 19. Through pipe; 20. Spray pipe; 21. Connecting frame. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] 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.

[0025] Please see Figures 1-5 In this utility model, a waste gas treatment mechanism for powder coating includes a liquid storage cylinder 1 and a square base 2. A spray cylinder 4 is fixedly connected to the upper surface of the liquid storage cylinder 1. A connecting frame 21 is provided inside the square base 2. A fastener 3 is fixedly connected to the front of the square base 2. The fastener 3 includes a square cylinder 302 installed on the front of the square base 2. A lead screw 303 is rotatably connected to the inner wall of the square cylinder 302 through a bearing. A transmission sleeve 304 is threadedly connected to the outer surface of the lead screw 303. Two transmission plates 305 are fixedly connected to the outer surface of the transmission sleeve 304. A limit rod 307 is fixedly connected to the outer surface of each transmission plate 305, and the limit rod 307 is adapted to the port seat 301. A guide is fixedly connected to the inner wall of the square cylinder 302. The guide rail 306 is slidably connected to the transmission plate 305. The structure consisting of the square cylinder 302 of the fastener 3, the lead screw 303, the transmission sleeve 304, the transmission plate 305, the limiting rod 307, and the guide rail 306 provides a convenient way to fasten and disassemble the connecting frame 21. Rotating the lead screw 303 causes the transmission sleeve 304 to move the transmission plate 305 and the limiting rod 307. The limiting rod 307 cooperates with the slotted seat 301 to fasten or loosen the connecting frame 21. For example, when the filter element 5 needs to be replaced, the worker only needs to rotate the lead screw 303 to disengage the limiting rod 307 from the slotted seat 301 to easily remove the connecting frame 21, which greatly improves the efficiency of filter replacement and reduces maintenance time.

[0026] The connecting frame 21 is equipped with a filter element 5, which includes a coarse filter screen 501 installed on the inner wall of the connecting frame 21. To the right of the coarse filter screen 501, a honeycomb activated carbon filter screen 502, a zeolite molecular sieve filter element 503, and an activated carbon fiber filter element 504 are arranged sequentially, forming a multi-level filtration system. The coarse filter screen 501 can intercept large dust particles, the honeycomb activated carbon filter screen 502 can adsorb organic waste gas and some odors, the zeolite molecular sieve filter element 503 has a good adsorption and decomposition effect on specific organic pollutants, and the activated carbon fiber filter element 504 further purifies the fine particles and residual pollutants in the waste gas. Through multi-stage filtration, various harmful substances in the powder coating exhaust gas can be effectively removed, ensuring that the exhaust gas meets standards and reducing environmental pollution. The selected adsorption materials, such as honeycomb activated carbon filter 502, zeolite molecular sieve filter element 503, and activated carbon fiber filter element 504, have excellent performance. The honeycomb activated carbon filter 502 has a large specific surface area and abundant microporous structure, resulting in a large adsorption capacity. The zeolite molecular sieve filter element 503 has good selective adsorption and catalytic performance, which can specifically remove harmful components in the powder coating exhaust gas. The combined use of these high-quality adsorption materials greatly improves the exhaust gas treatment effect.

[0027] A port seat 301 is fixedly connected to the outer surface of the connecting frame 21. A pump body 16 is fixedly installed on the outer surface of the liquid storage tank 1. A connecting pipe 19 is fixedly connected to the output end of the pump body 16. The connecting pipe 19 is connected to the spray cylinder 4. Multiple spray pipes 20 are fixedly connected to one end of the connecting pipe 19. An air suction hood 12 and an air guide tube 15 are fixedly connected to the outer surface of the spray cylinder 4. One end of the air guide tube 15 is connected to the square base 2. A fan 9 is fixedly installed on the inner wall of the square base 2. A fan 9 is fixedly connected to the right side of the square base 2. With an exhaust pipe 10, the above structures work together to achieve functions such as collection, spraying, filtration and discharge of waste gas. For example, the suction hood 12 collects the waste gas from powder coating, and the pump body 16 transports the treatment liquid in the storage tank 1 to the spray tank 4 through the through pipe 19 and the spray pipe 20 to spray the waste gas. The pump body 16 can extract the liquid in the storage tank 1 and spray the inhaled waste gas through the through pipe 19 and the spray pipe 20. Then the waste gas enters the square seat 2 through the air guide pipe 15.

[0028] A drain pipe 14 is provided on the outer surface of the spray cylinder 4. A liquid filling pipe 18 is fixedly connected to the left side of the liquid storage cylinder 1. A liquid level window 17 is provided on the left side of the liquid storage cylinder 1. The drain pipe 14 is used to discharge the liquid after spray treatment to prevent the liquid from accumulating in the spray cylinder 4 and affecting the treatment effect. The liquid filling pipe 18 facilitates the addition of treatment liquid to the liquid storage cylinder 1 to ensure the continuous normal operation of the equipment. The liquid level window 17 allows workers to intuitively observe the liquid level of the treatment liquid in the liquid storage cylinder 1 and replenish the treatment liquid in time to ensure the stability of the waste gas treatment process. Multiple mounting blocks 11 are fixedly connected to the outer surface of the liquid storage cylinder 1 and the outer surface of the square base 2. Two reinforcing plates 13 are fixedly connected to the outer surface of the liquid storage cylinder 1 and the outer surface of the square base 2. The multiple mounting blocks 11 facilitate the fixing of the liquid storage cylinder 1 and the square base 2 in a suitable position to ensure that the equipment is installed firmly. The two reinforcing plates 13 further enhance the connection stability between the liquid storage cylinder 1 and the square base 2.

[0029] A sealing ring 8 is fixedly connected to the bottom surface of the connecting frame 21, and an opening adapted to the connecting frame 21 is provided on the upper surface of the square base 2. When the connecting frame 21 is installed on the square base 2, the sealing of the connection part can be effectively guaranteed. To prevent the exhaust gas from leaking from the connection part during the treatment process, a positioning pin 6 is fixedly connected to the outer surface of the connecting frame 21, and a positioning cylinder 7 is fixedly connected to the front of the square base 2. The positioning pin 6 on the outer surface of the connecting frame 21 cooperates with the positioning cylinder 7 on the front of the square base 2. When the connecting frame 21 is installed, precise positioning can be achieved, so that the connecting frame 21 is accurately installed on the square base 2, ensuring the accurate relative position of the filter element 5 and other internal components of the square base 2.

[0030] The working principle of this utility model is as follows:

[0031] During use, exhaust gas is drawn into the spray cylinder 4 through the suction hood 12, and then an appropriate amount of spray liquid is added to the storage cylinder 1 through the liquid adding pipe 18. Then, the spray liquid in the storage cylinder 1 can be drawn out through the pump body 16. The exhaust gas entering the spray cylinder 4 is initially sprayed through the connecting pipe 19 and the spray pipe 20 to remove fine particles and harmful gases. Then, the pre-treated exhaust gas enters the square seat 2 through the air guide pipe 15. At the same time, the fan 9 is started to guide the air flow. The exhaust gas entering through the air guide pipe 15 passes through multiple layers of filtration, including the coarse filter 501, the honeycomb activated carbon filter 502, the zeolite molecular sieve filter element 503, and the activated carbon fiber filter element 504. This effectively removes various harmful substances in the powder coating exhaust gas, making the emitted exhaust gas meet the standards and reducing environmental pollution.

[0032] When the filter element 5 needs to be replaced, the lead screw 303 can be rotated to move the transmission sleeve 304 and the transmission plate 305 within the guide rail 306. The movement of the transmission plate 305 will move the limiting rod 307, moving the limiting rod 307 out of the seat 301 and into the square cylinder 302. This will release the fixing of the connecting frame 21 and the seat 301. Then, the connecting frame 21 can be lifted out of the square seat 2, and the filter element 5 can be replaced. This achieves convenient filter replacement.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste gas treatment mechanism for powder coating, characterized in that: The system includes a liquid storage cylinder (1) and a square base (2). A spray cylinder (4) is fixedly connected to the upper surface of the liquid storage cylinder (1). A connecting frame (21) is provided inside the square base (2). Fasteners (3) are fixedly connected to the front of the square base (2). A filter element (5) is installed inside the connecting frame (21). A port seat (301) is fixedly connected to the outer surface of the connecting frame (21). A pump body (16) is fixedly installed on the outer surface of the liquid storage cylinder (1). The output end is fixedly connected to a pipe (19), which is connected to the spray cylinder (4). One end of the pipe (19) is fixedly connected to multiple spray pipes (20). The outer surface of the spray cylinder (4) is fixedly connected to an air suction hood (12) and an air guide cylinder (15). One end of the air guide cylinder (15) is connected to a square seat (2). A fan (9) is fixedly installed on the inner wall of the square seat (2). A discharge pipe (10) is fixedly connected to the right side of the square seat (2).

2. The waste treatment mechanism for plastic spraying according to claim 1, characterized in that: The outer surface of the spray cylinder (4) is provided with a drain pipe (14), the left side of the storage cylinder (1) is fixedly connected with a liquid filling pipe (18), and the left side of the storage cylinder (1) is provided with a liquid level window (17).

3. The exhaust gas treatment mechanism for powder coating according to claim 1, characterized in that: Multiple mounting blocks (11) are fixedly connected to the outer surface of the liquid storage cylinder (1) and the outer surface of the square base (2), and two reinforcing plates (13) are fixedly connected to the outer surface of the liquid storage cylinder (1) and the outer surface of the square base (2).

4. The waste treatment mechanism for plastic spraying according to claim 1, characterized in that: The fastener (3) includes a square cylinder (302) installed on the front of the square base (2). The inner wall of the square cylinder (302) is rotatably connected to a lead screw (303) via a bearing. The outer surface of the lead screw (303) is threadedly connected to a transmission sleeve (304). The outer surface of the transmission sleeve (304) is fixedly connected to two transmission plates (305). The outer surface of each transmission plate (305) is fixedly connected to a limit rod (307), and the limit rod (307) is adapted to the seat (301). The inner wall of the square cylinder (302) is fixedly connected to a guide rail (306), and the interior of the guide rail (306) is slidably connected to the transmission plate (305).

5. The exhaust gas treatment mechanism for powder coating according to claim 1, characterized in that: The filter element (5) includes a coarse filter screen (501) installed on the inner wall of the connecting frame (21). On the right side of the coarse filter screen (501), a honeycomb activated carbon filter screen (502), a zeolite molecular sieve filter element (503) and an activated carbon fiber filter element (504) are arranged in sequence.

6. The waste treatment mechanism for plastic spraying according to claim 1, characterized in that: The bottom surface of the connecting frame (21) is fixedly connected with a sealing ring (8), and the upper surface of the square seat (2) is provided with a through-hole that is compatible with the connecting frame (21).

7. The exhaust gas treatment mechanism for powder coating according to claim 1, characterized in that: The outer surface of the connecting frame (21) is fixedly connected to a positioning pin (6), and the front of the square base (2) is fixedly connected to a positioning cylinder (7).

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