Paint mist treatment equipment for automobile part coating workshop

Abstract

The utility model relates to the technical field of environmental protection equipment, and particularly discloses paint mist treatment equipment for an automobile part coating workshop, which comprises a pretreatment device, a spray tower, a treatment liquid supplementing device, a post-treatment device and a fan device, and the treatment liquid supplementing device is arranged between a water collecting tank and a treatment liquid tank; water in the water collecting tank can be directly introduced into the treating fluid tank, on one hand, water treatment in the water collecting tank can be achieved, on the other hand, water can be supplemented to the water collecting tank, the material box used for feeding alkaline powder into the second pipeline is further arranged, when the concentration of the treating fluid tank in the treating fluid tank is reduced, supplementing of treating fluid can be achieved, and the treatment efficiency is improved. The treatment effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to paint mist processing equipment for an automobile parts painting workshop. Background Art

[0002] Auto parts are the various units that make up the whole car and a kind of product that serves the car. There are many kinds of auto parts. With the improvement of people's living standards, people's consumption of cars is increasing, so the demand for auto parts is gradually increasing. After the production of auto parts is completed, it is generally necessary to spray one or more layers of paint on its surface to protect the auto parts from corrosion and increase the beauty of the parts.

[0003] During the painting process of automobile parts, paint mist treatment is usually required to meet environmental emission standards. Generally, a paint mist treatment device is equipped to extract the exhaust gas in the painting room to the exhaust gas treatment device for exhaust gas treatment. The paint mist treatment equipment in the prior art is usually equipped with a cabinet for forming a water curtain, a spray tower for spraying, an adsorption box for adsorption, and a fan for extracting exhaust gas. Usually, an overflow tank is directly set on the cabinet. After the overflow tank overflows, a water curtain is formed. After the water flows down, it is usually discharged directly, which is easy to cause water pollution.

[0004] Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0005] In view of the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a paint mist treatment device for an automobile parts painting shop to solve the problem of water pollution caused by direct discharge of water from the water curtain cabinet of the paint mist treatment equipment in the prior art.

[0006] A paint mist treatment device for an automobile parts painting shop, comprising:

[0007] The pre-treatment device comprises a cabinet, wherein an overflow tank, an air channel, and a water collecting tank are sequentially arranged inside the cabinet from top to bottom, wherein one end of the air channel is connected to the outside, and the other end is connected to a first pipeline, and baffles and water curtain plates which are staggered up and down are alternately arranged inside the air channel along the gas conveying direction, and water overflowing from the overflow tank flows to the water curtain plate and forms a water curtain at the lower end of the water curtain plate;

[0008] A spray tower, comprising a tower body, a spray pipe arranged at the upper end of the inner side of the tower body, the first pipeline being connected to the tower body, a treatment liquid tank being arranged at the inner bottom of the tower body, and a water pump being arranged outside the tower body, the water pump pumping the treatment liquid in the treatment liquid tank to the spray pipe;

[0009] a treatment liquid replenishing device, comprising a second pipe connected between the water collecting tank and the treatment liquid tank, and a material box arranged above the second pipe and used for feeding alkaline powder into the second pipe, wherein the second pipe is further provided with a three-way valve, and one outlet of the three-way valve is connected to a water filtering device;

[0010] A post-processing device, comprising a shell connected to the top of the spray tower through a third pipe, a water-proof layer arranged inside the shell along the gas delivery direction, a primary filter, a high-efficiency filter, a drying layer, and a sterilization layer;

[0011] A fan device is connected to the air outlet of the shell.

[0012] Specifically, the water curtain plate is arranged at an angle, and an inclined guide surface is provided on the water curtain plate toward the air inlet end of the air channel, and water overflowing from the overflow trough is guided by the guide surface.

[0013] Specifically, the spray tower further comprises a packing layer, and the packing layer is located below the spray pipe and is used to increase the gas-liquid contact area.

[0014] Specifically, the spray tower further includes a liquid level detector, and a sensing end of the liquid level detector is inserted into the treatment liquid tank.

[0015] Specifically, the water-proof layer, the primary filter, the high-efficiency filter, the drying layer, and the sterilization layer are all in a drawer-type structure and are installed in the cabinet.

[0016] Specifically, the fan device includes a third pipe connected to the air outlet of the shell, and a fan arranged on the third pipe, and the third pipe has an upward exhaust port.

[0017] Specifically, a rain cover is provided above the exhaust port.

[0018] Beneficial effects of the utility model:

[0019] The paint mist treatment equipment of the utility model is provided with a treatment liquid replenishing device between the water collecting tank and the treatment liquid tank. The water in the water collecting tank can be directly passed into the treatment liquid tank. On the one hand, it can realize the water treatment in the water collecting tank, and on the other hand, it can replenish the water in the water collecting tank. In addition, a material box for feeding alkaline powder into the second pipeline is also provided. When the treatment liquid concentration in the treatment liquid tank is reduced, the treatment liquid can be replenished to ensure the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the paint mist treatment equipment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the post-processing device of the utility model.

[0022] The figures are marked as follows: pre-treatment device 10, cabinet 11, overflow trough 12, air channel 13, water collecting trough 14, first pipeline 15, baffle 16, water curtain plate 17, spray tower 20, tower body 21, spray pipe 22, treatment liquid tank 23, water pump 24, treatment liquid replenishing device 30, second pipeline 31, material box 32, three-way valve 33, water filtering device 34, post-treatment device 40, shell 41, waterproof layer 42, primary filter screen 43, high-efficiency filter screen 44, drying layer 45, sterilization layer 46, fan device 50, packing layer 25, liquid level detector 26, third pipeline 51, fan 52, rain cover 53. DETAILED DESCRIPTION

[0023] The utility model provides a paint mist treatment device for an automobile parts painting workshop. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] like Figure 1 and Figure 2 This embodiment discloses a paint mist treatment device for an automobile parts painting workshop, comprising:

[0026] The pre-treatment device 10 includes a cabinet 11, and an overflow tank 12, an air channel 13, and a water collecting tank 14 are sequentially arranged inside the cabinet 11 from top to bottom. One end of the air channel 13 is connected to the outside, and the other end is connected to a first pipeline 15. The inner side of the air channel 13 is alternately provided with up and down staggered baffles 16 and water curtain plates 17 along the gas conveying direction. Water overflowing from the overflow tank 12 flows to the water curtain plate 17 and forms a water curtain at the lower end of the water curtain plate 17.

[0027] The spray tower 20 includes a tower body 21, a spray pipe 22 disposed at the upper inner end of the tower body 21, a first pipeline 15 is connected to the tower body 21, a treatment liquid tank 23 is disposed at the inner bottom of the tower body 21, and a water pump 24 is disposed outside the tower body 21, and the water pump 24 pumps the treatment liquid in the treatment liquid tank 23 to the spray pipe 22;

[0028] The treatment liquid replenishing device 30 includes a second pipe 31 connected between the water collecting tank 14 and the treatment liquid tank 23, and a material box 32 disposed above the second pipe 31 and used to feed the alkaline powder into the second pipe 31. The second pipe 31 is also provided with a three-way valve 33, and one of the outlets of the three-way valve 33 is connected to a water filtering device 34;

[0029] The post-processing device 40 includes a shell 41 connected to the top of the spray tower 20 through a third pipe 51, a water-proof layer 42 provided inside the shell 41 along the gas conveying direction, a primary filter 43, a high-efficiency filter 44, a drying layer 45, and a sterilization layer 46;

[0030] The fan device 50 is connected to the air outlet of the housing 41 .

[0031] The paint mist treatment equipment of the present embodiment is provided with a pre-treatment device 10, the inner side of the pre-treatment device 10 is provided with an air channel 13 for conveying waste gas, and the inner side of the air channel 13 is alternately provided with up and down staggered baffles 16 and water curtain plates 17 along the gas conveying direction, and the baffles 16 and the water curtain plates 17 cooperate to form an S-shaped gas conveying trajectory. When the overflow tank 12 is filled with water, the overflowed water flows to the water curtain plate 17 and forms a water curtain at the lower end of the water curtain plate 17, thereby settling some paint molecules in the gas and reducing the concentration of paint molecules in the gas; the waste gas is then introduced into the spray tower 20, and after the water pump 24 is started, the treatment liquid in the treatment liquid tank 23 is pumped to the spray pipe 22, so that the treatment liquid forms a spray effect, increases the gas-liquid contact area, and decomposes, destroys or flocculates the paint molecules through the treatment liquid, thereby achieving The paint is removed; then it is passed into the post-processing device 40, and the exhaust gas is processed by the waterproof layer 42, the primary filter screen 43, the high-efficiency filter screen 44, the drying layer 45, and the sterilization layer 46 in turn, which can realize the first drying, coarse filtration, fine filtration, second drying, and sterilization of the exhaust gas, so that the discharged gas meets the emission standards; and a treatment liquid replenishing device 30 is arranged between the water collecting tank 14 and the treatment liquid tank 23, and the water in the water collecting tank 14 can be directly passed into the treatment liquid tank 23. On the one hand, the water treatment in the water collecting tank 14 can be realized, and on the other hand, the water collecting tank 14 can be replenished with water. In addition, a material box 32 for sending alkaline powder into the second pipeline 31 is provided. When the treatment liquid concentration in the treatment liquid tank 23 is reduced, the treatment liquid can be replenished to ensure the treatment effect.

[0032] The water curtain plate 17 is tilted, and an inclined guide surface is provided on the water curtain plate 17 toward the air inlet end of the air channel 13. Water overflowing from the overflow groove 12 is guided by the guide surface. The tilted setting of the water curtain plate 17 can make the water flow more evenly, and the formed water curtain effect is better.

[0033] The spray tower 20 also includes a packing layer 25, which can be made of ceramic packing, plastic packing or metal packing. The packing layer 25 is located below the spray pipe 22, which can increase its area to allow the air and liquid two-phase flows to fully contact each other, thereby increasing the gas-liquid contact area.

[0034] In order to realize automatic monitoring of the liquid level height in the treatment liquid tank 23 and facilitate the treatment liquid replenishing device 30 to replenish the treatment liquid tank 23 , the spray tower 20 further includes a liquid level detector 26 , the sensing end of which is inserted into the treatment liquid tank 23 .

[0035] The waterproof layer 42 can be made of breathable materials with adsorption function such as honeycomb cotton, silicone waterproof pad, etc.; the primary filter 43 is made of polyester fiber, polypropylene fiber and other materials, and has good air permeability and filtering performance; the high-efficiency filter 44 is made of polyester fiber, polypropylene fiber and other materials, and has good air permeability and filtering performance, and its mesh size is slightly smaller than the primary filter 43; the drying layer 45 is made of adsorption materials such as activated carbon, which can reduce the water content in the exhaust gas, and also has a certain adsorption effect on small particles of impurities; the sterilization layer 46 is made of a porous plate material coated with a silver ion antibacterial coating, which has a good sterilization effect.

[0036] In order to facilitate replacement, the water-proof layer 42 , the primary filter 43 , the high-efficiency filter 44 , the drying layer 45 , and the sterilization layer 46 are all installed in the cabinet 11 in a drawer-type structure.

[0037] The fan device 50 includes a third pipe 51 connected to the air outlet of the shell 41 and a fan 52 arranged on the third pipe 51. The third pipe 51 has an upward exhaust port, and the treated gas is directly discharged from above the exhaust port.

[0038] A rain cover 53 is provided above the exhaust port to prevent rainwater from falling directly from the upper end of the exhaust port.

[0039] The preferred implementation methods of the utility model are described in detail above, but the invention of the utility model is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the utility model. These equivalent modifications or substitutions are all included in the scope defined by the claims of the invention of the utility model.

Claims

1. A paint mist treatment equipment for an automobile parts painting workshop, characterized in that: include: A pre-treatment device (10) comprises a cabinet (11), wherein the cabinet (11) is provided with an overflow trough (12), an air channel (13), and a water collecting trough (14) in order from top to bottom, wherein one end of the air channel (13) is in communication with the outside, and the other end is connected to a first pipeline (15), wherein baffles (16) and water curtain plates (17) which are staggered up and down are alternately provided on the inner side of the air channel (13) along the gas conveying direction, and water overflowing from the overflow trough (12) flows to the water curtain plate (17) and forms a water curtain at the lower end of the water curtain plate (17); A spray tower (20) comprises a tower body (21), a spray pipe (22) arranged at the upper end of the inner side of the tower body (21), the first pipeline (15) being in communication with the tower body (21), a treatment liquid tank (23) being arranged at the inner bottom of the tower body (21), and a water pump (24) being arranged on the outer side of the tower body (21), the water pump (24) pumping the treatment liquid in the treatment liquid tank (23) to the spray pipe (22); The treatment liquid replenishing device (30) comprises a second pipe (31) connected between the water collecting tank (14) and the treatment liquid tank (23), and a material box (32) arranged above the second pipe (31) and used for feeding alkaline powder into the second pipe (31); the second pipe (31) is also provided with a three-way valve (33), and one of the outlets of the three-way valve (33) is connected to a water filtering device (34); A post-processing device (40) comprising a shell (41) connected to the top of the spray tower (20) via a third pipe (51), a water-proof layer (42) arranged inside the shell (41) along the gas conveying direction, a primary filter (43), a high-efficiency filter (44), a drying layer (45), and a sterilization layer (46); A fan device (50) is connected to the air outlet of the housing (41).

2. The paint mist treatment equipment for an automobile parts painting shop according to claim 1, characterized in that: The water curtain plate (17) is arranged obliquely, and an inclined guide surface is provided on the water curtain plate (17) toward the air inlet end of the air channel (13), and water overflowing from the overflow groove (12) is guided by the guide surface.

3. The paint mist treatment equipment for an automobile parts painting shop according to claim 1, characterized in that: The spray tower (20) further comprises a packing layer (25), wherein the packing layer (25) is located below the spray pipe (22) and is used to increase the gas-liquid contact area.

4. The paint mist treatment equipment for an automobile parts painting shop according to claim 1, characterized in that: The spray tower (20) further comprises a liquid level detector (26), wherein the sensing end of the liquid level detector (26) is inserted into the treatment liquid tank (23).

5. The paint mist treatment equipment for an automobile parts painting shop according to claim 1, characterized in that: The water-proof layer (42), the primary filter (43), the high-efficiency filter (44), the drying layer (45), and the sterilization layer (46) are all drawer-type structures installed in the cabinet (11).

6. The paint mist treatment equipment for an automobile parts painting shop according to claim 1, characterized in that: The fan device (50) comprises a third pipe (51) connected to the air outlet of the housing (41) and a fan (52) arranged on the third pipe (51); the third pipe (51) has an air outlet facing upward.

7. The paint mist treatment equipment for an automobile parts painting shop according to claim 6, characterized in that: A rainproof cover (53) is provided above the exhaust port.

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