An electrophoretic exhaust gas filtration and purification device

Abstract

This utility model discloses an electrophoresis waste gas filtration and purification device, including a first chamber and a second chamber. The first chamber has an air outlet and an air inlet at its front and rear, respectively. Inside the first chamber, a first vertical plate and a second vertical plate are installed. On the opposite side of these two vertical plates, a strip-shaped support block is installed. The side of the first chamber has a drawer groove, and a drawer is installed in the drawer groove. The bottom of the drawer is supported on the two support blocks on both sides. The bottom of the drawer has multiple evenly distributed ventilation holes. Activated carbon is placed inside the drawer. This utility model, by setting a condenser pipe and introducing a cooling medium into the condenser pipe, can condense some of the organic solvent in the electrophoresis waste gas into liquid and collect it in a funnel. This not only reduces the filtration burden on the activated carbon in the first chamber but also saves resources. By setting an acid mist purification tower, the acid mist in the waste gas can be neutralized before the electrophoresis waste gas enters the first chamber and the second chamber.

Description

Technical Field

[0001] This utility model relates to the field of electrophoresis waste gas treatment technology, specifically to an electrophoresis waste gas filtration and purification device. Background Technology

[0002] Electrophoretic coating, a surface treatment technology widely used in industries such as automobiles, home appliances, and building materials, offers advantages such as uniform coating, strong adhesion, and good corrosion resistance. However, the electrophoresis process generates a large amount of waste gas. If this waste gas is directly released into the atmosphere, it will not only cause serious environmental pollution but also harm human health. Therefore, the effective treatment of electrophoretic waste gas has become an indispensable part of the electrophoretic coating process.

[0003] Traditional electrophoresis exhaust gas treatment methods mainly involve filtering and purifying the exhaust gas using activated carbon filter boxes. However, when the volume of exhaust gas is large, the filter box bears a heavy burden, and the activated carbon becomes saturated more quickly, requiring frequent replacement. Furthermore, electrophoresis exhaust gas usually contains a large amount of acid mist, which can easily corrode the filter box during use. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an electrophoretic exhaust gas filtration and purification device to solve the problems mentioned in the background art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An electrophoretic exhaust gas filtration and purification device includes a first box and a second box. The first box has an air outlet and an air inlet at the front and back, respectively. The first box has a first vertical plate and a second vertical plate installed inside. Each of the two vertical plates has a strip-shaped support block installed on its opposite side. The first box has a drawer groove on its side, and a drawer is installed in the drawer groove. The bottom of the drawer is supported on the two support blocks on both sides. The bottom of the drawer has multiple evenly distributed ventilation holes. Activated carbon is placed inside the drawer.

[0007] The second chamber is also provided with an air outlet and an air inlet at the front and rear. The air outlet of the second chamber is connected to the air inlet of the first chamber. The air inlet of the second chamber is connected to an acid mist purification tower through a pipe. A condenser pipe is installed inside the second chamber. The bottom of the second chamber is open and a funnel is installed. A valve is installed at the outlet of the funnel.

[0008] As a preferred embodiment of the electrophoretic exhaust gas filtration and purification device, the inlet and outlet of the condenser tube are both located outside the second housing and are connected to an external cooling medium circulation system via pipes.

[0009] As a preferred embodiment of the electrophoretic exhaust gas filtration and purification device, the lower part of the first vertical plate has a through hole for gas to pass through, and the through hole is located below the drawer.

[0010] As a preferred embodiment of the electrophoretic exhaust gas filtration and purification device, the upper part of the second vertical plate has a through hole for gas to pass through, and the through hole is located above the drawer.

[0011] As a preferred embodiment of the electrophoretic exhaust gas filtration and purification device, the drawer can be fixed to the first housing with screws, and a sealing gasket is provided between the drawer and the drawer slot on the side of the first housing.

[0012] As a preferred embodiment of the electrophoretic exhaust gas filtration and purification device, the upper and lower parts of the acid mist purification tower are respectively provided with an air outlet and an air inlet. An induced draft fan is provided between the acid mist purification tower and the second housing. The air inlet and outlet of the induced draft fan are respectively connected to the air outlet of the acid mist purification tower and the air inlet of the second housing through pipes.

[0013] As a preferred embodiment of the electrophoretic exhaust gas filtration and purification device, the acid mist purification tower has a spray pipe installed on the upper part of the tower body cavity, a support mesh plate installed in the middle of the tower body cavity, and packing material placed on the support mesh plate.

[0014] The beneficial effects of this utility model are:

[0015] (1) The electrophoretic exhaust gas filtration and purification device of this utility model can condense some of the organic solvents in the electrophoretic exhaust gas into liquid by setting a condenser tube and passing a cooling medium through the condenser tube, and collect them in the funnel. This not only reduces the filtration burden of the activated carbon in the first box, but also saves resources.

[0016] (2) The electrophoresis exhaust gas filtration and purification device of this utility model can neutralize the acid mist in the exhaust gas before it enters the first and second boxes by setting an acid mist purification tower, thereby reducing the corrosion of the boxes and internal structures by the exhaust gas. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the electrophoretic waste gas filtration and purification device described in this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the second box described in this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the first box body described in this utility model.

[0021] Figure 4 This is a schematic diagram of the bottom of the drawer described in this utility model.

[0022] Figure 5 This is a schematic diagram of the top of the drawer described in this utility model.

[0023] Figure 6 This is a schematic diagram of the internal structure of the acid mist purification tower described in this utility model.

[0024] In the picture:

[0025] 1. First chamber; 2. Second chamber; 3. Condenser pipe; 4. Funnel; 5. Valve; 6. First vertical plate; 7. Second vertical plate; 8. Support block; 9. Drawer; 10. Vent hole; 11. Activated carbon; 12. Acid mist purification tower; 13. Exhaust fan; 14. Spray pipe; 15. Support mesh plate; 16. Packing material. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between 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.

[0030] like Figures 1 to 6 As shown, this utility model provides an electrophoretic waste gas filtration and purification device, which mainly consists of a first chamber 1 and a second chamber 2. The first chamber 1 is used to filter and adsorb particulate matter and organic pollutants in the waste gas, while the second chamber 2 is used to condense some of the volatile solvents in the waste gas into liquid for recovery. This not only reduces the filtration burden on the first chamber 1, but also saves resources.

[0031] Please see Figure 3 The first housing 1 has an air outlet and an air inlet at the front and rear, respectively. Inside the first housing 1, a first vertical plate 6 and a second vertical plate 7 are installed. Each of these two vertical plates has a strip-shaped support block 8 on its opposite side to support a drawer 9. The side of the first housing 1 has a drawer groove, and the drawer 9 is slidably installed within the drawer groove. Figure 4 and Figure 5 As shown, drawer 9 has multiple evenly distributed ventilation holes 10 at its bottom to facilitate gas passage. Activated carbon 11 is placed inside drawer 9 to adsorb organic pollutants in the exhaust gas. The lower part of the first vertical plate 6 has a through hole for gas passage, located below drawer 9. The upper part of the second vertical plate 7 has a through hole for gas passage, located above drawer 9. Electrophoresis exhaust gas can reach the bottom of drawer 9 through the air inlet of the first housing 1 and the through hole at the bottom of the first vertical plate 6. After being adsorbed and purified by activated carbon 11, the exhaust gas can be discharged through the through hole at the top of the second vertical plate 7 and the air outlet of the first housing 1. Drawer 9 can be fixed to the first housing 1 with screws. A sealing gasket is provided between drawer 9 and the drawer slot on the side of the first housing 1 to prevent exhaust gas leakage.

[0032] Please see Figure 2The second chamber 2 is equipped with an air outlet and an air inlet at the front and rear. The air outlet of the second chamber 2 is connected to the air inlet of the first chamber 1. The air inlet of the second chamber 2 is connected to an acid mist purification tower 12 through a pipe. The function of the acid mist purification tower 12 is to neutralize the acid mist in the electrophoresis waste gas and reduce the corrosiveness of the waste gas to subsequent equipment. A condenser pipe 3 is installed inside the second chamber 2. The inlet and outlet of the condenser pipe 3 are located outside the second chamber 2 and are connected to an external cooling medium circulation system through a pipe. The condenser pipe 3 can condense some of the volatile solvents in the electrophoresis waste gas into liquid, thereby reducing the filtration burden on the activated carbon 11. The bottom of the second chamber 2 is open and a funnel 4 is installed. A valve 5 is installed at the outlet of the funnel 4. The function of the funnel 4 is to collect the condensed volatile solvents. Opening the valve 5 can recover these volatile solvents.

[0033] Please see Figure 1 The acid mist purification tower 12 has an air outlet and an air inlet at its upper and lower parts, respectively. An induced draft fan 13 is installed between the acid mist purification tower 12 and the second housing 2. The air inlet and outlet of the induced draft fan 13 are connected to the air outlet of the acid mist purification tower 12 and the air inlet of the second housing 2, respectively, via pipes. Figure 6 As shown, a spray pipe 14 is installed on the upper part of the inner cavity of the acid mist purification tower 12. Alkaline washing liquid flows through the inside of the spray pipe 14. The alkaline washing liquid can be sprayed downward through the spray pipe 14 and neutralize the acid mist in the electrophoresis exhaust gas. A support mesh plate 15 is installed in the middle of the inner cavity of the tower. A packing material 16 is placed on the support mesh plate 15. The packing material 16 is used to increase the gas-liquid contact area and improve the purification efficiency.

[0034] Working principle and usage process of this utility model:

[0035] When the electrophoretic exhaust gas filtration and purification device is in use, the exhaust gas first enters the tower body through the air inlet of the acid mist purification tower 12, and is sprayed by alkaline washing liquid through the spray pipe 14 to remove the acid mist. The exhaust gas after the first purification enters the second chamber 2 under the action of the induced draft fan 13. In the second chamber 2, the exhaust gas is cooled by the condenser pipe 3, and some of the volatile solvents in the exhaust gas are condensed into liquid and collected in the funnel 4. The exhaust gas after the second purification enters the first chamber 1, and the remaining organic pollutants are adsorbed by the activated carbon 11 in the drawer 9. Finally, the purified exhaust gas is discharged from the air outlet of the first chamber 1.

[0036] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. An electrophoretic exhaust gas filtration and purification device, characterized in that, The first box (1) includes a first box (1) and a second box (2). The first box (1) has an air outlet and an air inlet at the front and back respectively. The first box (1) has a first vertical plate (6) and a second vertical plate (7) installed inside. The two vertical plates have strip-shaped support blocks (8) installed on opposite sides. The first box (1) has a drawer slot on its side, and a drawer (9) is installed in the drawer slot. The bottom sides of the drawer (9) are supported on the two support blocks (8). The bottom of the drawer (9) has multiple evenly distributed ventilation holes (10). Activated carbon (11) is placed inside the drawer (9). The second box (2) is also provided with an air outlet and an air inlet at the front and rear. The air outlet of the second box (2) is connected to the air inlet of the first box (1). The air inlet of the second box (2) is connected to an acid mist purification tower (12) through a pipe. A condenser pipe (3) is installed inside the second box (2). The bottom of the second box (2) is open and a funnel (4) is installed. A valve (5) is installed at the outlet of the funnel (4).

2. The electrophoretic waste gas filtration and purification device according to claim 1, characterized in that, The inlet and outlet of the condenser (3) are both located outside the second housing (2) and are connected to an external cooling medium circulation system via pipes.

3. The electrophoretic waste gas filtration and purification device according to claim 1, characterized in that, The lower part of the first vertical plate (6) has a through hole for gas to pass through, and the through hole is located below the drawer (9).

4. The electrophoretic waste gas filtration and purification device according to claim 1, characterized in that, The upper part of the second vertical plate (7) has a through hole for gas to pass through, and the through hole is located above the drawer (9).

5. The electrophoretic waste gas filtration and purification device according to claim 1, characterized in that, The drawer (9) can be fixed to the first box (1) with screws, and a sealing gasket is provided between the drawer (9) and the drawer slot on the side of the first box (1).

6. The electrophoretic waste gas filtration and purification device according to claim 1, characterized in that, The upper and lower parts of the acid mist purification tower (12) are respectively provided with an air outlet and an air inlet. An induced draft fan (13) is provided between the acid mist purification tower (12) and the second box (2). The air inlet and outlet of the induced draft fan (13) are respectively connected to the air outlet of the acid mist purification tower (12) and the air inlet of the second box (2) through pipes.

7. The electrophoretic waste gas filtration and purification device according to claim 1, characterized in that, The acid mist purification tower (12) has a spray pipe (14) installed on the upper part of the inner cavity of the tower, a support mesh plate (15) installed in the middle of the inner cavity of the tower, and a packing material (16) placed on the support mesh plate (15).

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