Waste gas purification device of coating production line

Abstract

The utility model belongs to the technical field of waste gas purification, and particularly relates to a waste gas purification device of a coating production line, which comprises a purification box, an access door is arranged on the front side of the purification box, a water injection port and a plurality of air inlets are arranged on one side of the purification box, and a first filter plate and a water guide plate are fixedly arranged in the purification box. By arranging the water pump, the drainage pipe, the water spraying disc and the exhaust fan, air in the purification box is pumped outwards, a plurality of air inlet holes in one side of the purification box are in a suction state, gas generated on a production line is sucked in, the gas is primarily filtered by the second filter plate, large particle impurities are blocked and filtered, and the purification effect is improved. The filtered air continues to move in the direction of the box exhaust fan and can be wetted by water when passing through the bottom of the water spraying disc, fine particle impurities in the air can be carried by the sprayed water to fall on the top of the first filtering plate, sedimentation of particles in the air is achieved, and the air with the particle impurities can be effectively prevented from being discharged into the air.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification, in particular to a waste gas purification device for a coating production line. Background Art

[0002] Paint, also known as varnish, refers to a viscous liquid that is applied to the surface of an object to be protected or decorated and can form a firmly attached continuous film with the coated object. It is usually based on resin, oil, or emulsion, with or without pigments, fillers, and corresponding additives, and is prepared with organic solvents or water. During the paint production process, purification equipment is required to filter and then discharge the gases generated by the production line to achieve the purpose of environmental protection.

[0003] However, among the existing equipment, the purification equipment does not have the spraying and sedimentation function. After the filtration rate, there are still particulate impurities smaller than the inner diameter of the filter mesh in the gas that are discharged. If inhaled, it will cause irreversible damage to the human respiratory tract. For this reason, a waste gas purification device for a paint production line is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an exhaust gas purification device for a coating production line.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an exhaust gas purification device for a paint production line, comprising a purification box, a maintenance door is provided on the front of the purification box, a water injection port and a plurality of air inlet holes are provided on one side of the purification box, a first filter plate and a water guide plate are fixedly provided in the purification box, the water guide plate is located below the first filter plate, a second filter plate is movably provided in the purification box, two positioning shafts are fixedly provided on the top of the purification box, pressure plates are movably provided on the two positioning shafts, a spray structure is provided in the purification box, an exhaust fan is fixedly provided on the inner wall of one side of the purification box, and a purification component is provided on one side of the purification box.

[0006] As a further description of the above technical solution:

[0007] The spray structure includes a water pump fixedly installed on one side of the purification box, and a water suction pipe and a drainage pipe are fixedly provided on both sides of the water pump. One end of the drainage pipe passes through the top inner wall of the purification box and is fixedly provided with a water spray plate, and the end of the water suction pipe away from the water pump passes through the purification box and extends into the purification box.

[0008] As a further description of the above technical solution:

[0009] The purification component includes a connecting pipe fixedly installed on one side of the purification box, the connecting pipe is located outside the exhaust fan, and a purification box is fixedly provided at one end of the connecting pipe away from the purification box, and an activated carbon filter plate is inserted in the purification box.

[0010] As a further description of the above technical solution:

[0011] A plurality of exhaust holes are arranged on an inner wall of one side of the purification box, and metal filter screens are fixedly arranged in the plurality of exhaust holes.

[0012] As a further description of the above technical solution:

[0013] Two limiting seats are fixedly provided on an inner wall of one side of the purification box, and the second filter plate is located between the two limiting seats.

[0014] As a further description of the above technical solution:

[0015] The pressing plate is provided with a circular hole, a bearing is provided in the circular hole, an outer ring of the bearing is fixedly connected to the inner wall of the circular hole, and an inner ring of the bearing is fixedly sleeved on the positioning shaft.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, the exhaust gas purification device of the paint production line is equipped with a water pump, a drain pipe and a water spray plate. The exhaust fan pumps the air in the purification box outward, so that the multiple air inlet holes on one side of the purification box are in a suction state, and the gas generated on the production line is sucked in. The second filter plate will perform a primary filtration on the gas, blocking and filtering large particle impurities. The filtered air continues to move in the direction of the exhaust fan of the box, and will be wetted by water when passing through the bottom of the water spray plate. The fine particle impurities in the gas will be entrained by the sprayed water and fall on the top of the first filter plate, thereby realizing the sedimentation of particles in the gas, and can effectively prevent the gas containing particle impurities from being discharged into the air.

[0018] 2. Compared with the prior art, the exhaust gas purification device of the paint production line is equipped with a connecting pipe and a purification box. The gas after spraying continues to move toward the exhaust fan and is introduced into the connecting pipe through the exhaust fan. The connecting pipe is then transported to the purification box. The activated carbon filter plate in the purification box will purify the gas again, adsorb the unpleasant odor in the gas and then discharge it, thereby protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of an exhaust gas purification device for a coating production line proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of an exhaust gas purification device for a coating production line proposed by the utility model after removing the purification components;

[0021] Figure 3This is a schematic diagram of the front sectional three-dimensional structure of an exhaust gas purification device for a paint production line proposed by the utility model.

[0022] Legend:

[0023] 1. Purification box; 2. Inspection door; 3. Water inlet; 4. First filter plate; 5. Water guide plate; 6. Limit seat; 7. Second filter plate; 8. Positioning shaft; 9. Press plate; 10. Spray structure; 101. Water pump; 102. Drain pipe; 103. Water spray plate; 11. Purification component; 111. Connecting pipe; 112. Purification box; 12. Exhaust fan. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figures 1 to 3 The utility model provides an exhaust gas purification device for a coating production line: comprising a purification box 1, a maintenance door 2 is provided on the front of the purification box 1, a water injection port 3 and a plurality of air inlet holes are provided on one side of the purification box 1, a first filter plate 4 and a water guide plate 5 are fixedly provided in the purification box 1, the water guide plate 5 is located below the first filter plate 4, a second filter plate 7 is movably provided in the purification box 1, two limit seats 6 are fixedly provided on the inner wall of one side of the purification box 1, and the second filter plate 7 is located between the two limit seats 6;

[0026] Reference Figure 1 In order to realize the purpose of quick disassembly of the second filter plate 7, two positioning shafts 8 are fixedly provided on the top of the purification box 1, and pressure plates 9 are movably provided on the two positioning shafts 8. A circular hole is provided on the pressure plate 9, and a bearing is provided in the circular hole. The outer ring of the bearing is fixedly connected to the inner wall of the circular hole, and the inner ring of the bearing is fixedly sleeved on the positioning shaft 8. When the second filter plate 7 needs to be removed, the two pressure plates 9 are rotated to make them out of contact with the second filter plate 7, and then the second filter plate 7 can be pulled upward to be taken out;

[0027] Reference Figure 1In order to achieve the purpose of sedimentation, a spray structure 10 is provided in the purification box 1. The spray structure 10 includes a water pump 101 fixedly installed on one side of the purification box 1. A water suction pipe and a drain pipe 102 are fixedly provided on both sides of the water pump 101. One end of the drain pipe 102 passes through the top inner wall of the purification box 1 and is fixedly provided with a water spray plate 103. The end of the water suction pipe away from the water pump 101 passes through the purification box 1 and extends into the purification box 1. The spray structure 10 can precipitate impurities in the inhaled gas to prevent the gas containing particulate impurities from being discharged into the air.

[0028] Reference Figure 3 In order to achieve the purpose of purification, an exhaust fan 12 is fixedly provided on the inner wall of one side of the purification box 1, and a purification component 11 is provided on one side of the purification box 1. The purification component 11 includes a connecting pipe 111 fixedly installed on one side of the purification box 1, and the connecting pipe 111 is located outside the exhaust fan 12. A purification box 112 is fixedly provided at one end of the connecting pipe 111 away from the purification box 1. An activated carbon filter plate is inserted in the purification box 112. A plurality of exhaust holes are provided on the inner wall of one side of the purification box 112, and metal filter nets are fixedly provided in the plurality of exhaust holes. The purification component 11 can adsorb the troublesome odor in the gas and then discharge it, so as to protect the environment.

[0029] Working principle: When in use, first fill water into the purification box 1 through the water inlet 3, then start the water pump 101 and the exhaust fan 12, the water pump 101 sucks the water in the purification box 1 and guides it into the water spray plate 103 through the drain pipe 102, the water is sprayed out through the water spray plate 103, the exhaust fan 12 pumps the air in the purification box 1 outward, so that the multiple air inlet holes on one side of the purification box 1 are in a suction state, and the gas generated on the production line is sucked in, the second filter plate 7 will perform the initial filtration of the gas, block and filter the large particle impurities, and the filtered air continues to move in the direction of the exhaust fan 12 of the box, and then passes through the exhaust fan 12. The bottom of the water spray tray 103 will be wetted by water, and the fine particulate impurities in the gas will be carried away by the sprayed water and fall on the top of the first filter plate 4. The sprayed gas will continue to move and be introduced into the connecting pipe 111 through the exhaust fan 12, and then the connecting pipe 111 will be transported to the purification box 112. The activated carbon filter plate in the purification box 112 will purify the gas again, absorb the unpleasant odor in the gas and then discharge it. The water participating in the spraying will be sucked into the water pump 101 after being filtered by the first filter plate 4 and participate in the spraying operation again, so as to realize the recycling of water and achieve the purpose of saving resources.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust gas purification device for a coating production line, comprising a purification box (1), characterized in that: The front of the purification box (1) is provided with an inspection door (2), one side of the purification box (1) is provided with a water injection port (3) and a plurality of air inlet holes, a first filter plate (4) and a water guide plate (5) are fixedly provided in the purification box (1), the water guide plate (5) is located below the first filter plate (4), a second filter plate (7) is movably provided in the purification box (1), two positioning shafts (8) are fixedly provided on the top of the purification box (1), and a pressure plate (9) is movably provided on the two positioning shafts (8), a spray structure (10) is provided in the purification box (1), an exhaust fan (12) is fixedly provided on the inner wall of one side of the purification box (1), and a purification component (11) is provided on one side of the purification box (1).

2. The exhaust gas purification device for a coating production line according to claim 1 is characterized in that: The spray structure (10) comprises a water pump (101) fixedly mounted on one side of the purification box (1), a water suction pipe and a water discharge pipe (102) being fixedly mounted on both sides of the water pump (101), one end of the water discharge pipe (102) passing through the top inner wall of the purification box (1) and being fixedly mounted with a water spray plate (103), and an end of the water suction pipe away from the water pump (101) passing through the purification box (1) and extending into the purification box (1).

3. The exhaust gas purification device for a coating production line according to claim 1 is characterized in that: The purification component (11) comprises a connecting pipe (111) fixedly mounted on one side of the purification box (1); the connecting pipe (111) is located outside the exhaust fan (12); a purification box (112) is fixedly mounted on one end of the connecting pipe (111) away from the purification box (1); an activated carbon filter plate is inserted into the purification box (112).

4. The exhaust gas purification device for a coating production line according to claim 3 is characterized in that: A plurality of exhaust holes are provided on an inner wall of one side of the purification box (112), and a metal filter is fixedly provided in each of the plurality of exhaust holes.

5. The exhaust gas purification device for a coating production line according to claim 1 is characterized in that: Two limiting seats (6) are fixedly provided on an inner wall of one side of the purification box (1), and the second filter plate (7) is located between the two limiting seats (6).

6. The exhaust gas purification device for a coating production line according to claim 1 is characterized in that: The pressing plate (9) is provided with a circular hole, a bearing is provided in the circular hole, the outer ring of the bearing is fixedly connected to the inner wall of the circular hole, and the inner ring of the bearing is fixedly sleeved on the positioning shaft (8).

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