Waste gas treatment device for spray booth of coating workshop

Abstract

The utility model discloses a painting workshop spray booth waste gas treatment device which comprises a water bath barrel, a filter barrel and a heating barrel, the water bath barrel, the filter barrel and the heating barrel are sequentially arranged at equal intervals, the side face of the filter barrel is fixedly communicated with a gas inlet pipe, the bottom face of the filter barrel is fixedly communicated with a drainage pipe, and a negative pressure gas inlet structure is arranged in the gas inlet pipe. A spraying assembly is arranged in the water bath barrel, and three filter layers are fixedly connected in the filter barrel. The filtering device has the advantages that the three filtering layers are arranged on the inner side of the filtering barrel, the replacement groove is formed in the outer side of the filtering barrel, the filtering layers in the filtering barrel can be replaced through the replacement groove, in addition, the sealing gasket is arranged on the outer side of the replacement groove, and the cover plate is arranged on the outer side of the filtering barrel; and the filtering barrel can be sealed through the cover plate and the sealing gasket.

Description

Technical Field

[0001] The utility model relates to the technical field of painting equipment, in particular to an exhaust gas treatment device for a spray booth in a painting workshop. Background Art

[0002] The exhaust gas of the spray booth contains volatile organic compounds in the paint or paint solvent used in the painting process, as well as other pollutants that may be generated in the spray booth, such as particulate matter and nitrogen oxides. These exhaust gases may have adverse effects on the environment and human health, so a treatment device for the exhaust gas of the spray booth in the painting workshop is needed.

[0003] The existing exhaust gas treatment device for a spray booth in a painting workshop, such as the one disclosed in CN106540531A, includes a spray chamber body and an adsorption device. The upper end of the spray chamber body is connected to one end of the adsorption device through a conveying pipeline, and the other end of the adsorption device is connected to a chimney through an exhaust fan. A lye storage tank is arranged at the lower end of the spray chamber body, a water pump is arranged on the lye storage tank, one end of a connecting pipe is connected to the water pump, and the other end of the connecting pipe is connected to a spray pipe arranged in the spray chamber body.

[0004] The existing exhaust gas treatment device for a spray booth in a painting workshop still has the following deficiencies:

[0005] 1. The existing device adsorbs the exhaust gas by using a filter layer, but the filter cotton or activated carbon in the device cannot be replaced, so the filtering effect will be affected during long-term use.

[0006] 2. In the face of a lot of relatively large particulate matter in the exhaust gas in the spray booth, the existing device can only use an adsorption method to remove it, which will cause the blockage of the filter layer, and there are many flammable gases in the exhaust gas, and the existing device also has no good treatment method. Summary of the Utility Model

[0007] The purpose of the utility model is to solve the problems in the prior art that the filter cotton or activated carbon in the device cannot be replaced and the flammable gas cannot be properly treated, and to provide an exhaust gas treatment device for a spray booth in a painting workshop.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] The waste gas treatment device for the painting booth in the painting workshop includes: a water bath barrel, a filter barrel, and a heating barrel. The water bath barrel, the filter barrel, and the heating barrel are arranged equidistantly in sequence. An air inlet pipe is fixedly connected to the side of the filter barrel, and a drain pipe is fixedly connected to the bottom surface of the filter barrel. A negative pressure air intake structure is provided in the air inlet pipe, a spraying component is provided in the water bath barrel, three filter layers are fixedly connected in the filter barrel, a replacement sealing structure is arranged on the side of the filter barrel, and a heating structure is provided in the heating barrel. The negative pressure air intake structure includes a fixed rod, a motor, and a negative pressure fan. The motor is fixedly connected to the inside of the air inlet pipe through the fixed rod, and the negative pressure fan is fixedly connected to the output end of the motor.

[0010] In order to better achieve the above object, the present utility model adopts a further technical solution: The spraying component includes a water inlet pipe and a spray head. The water inlet pipe penetrates and is fixedly connected to the side wall of the water bath barrel. The water inlet pipe is set in an "L" shape, and the spray head is fixedly connected to the lower surface of the water inlet pipe.

[0011] In order to better achieve the above object, the present utility model adopts a further technical solution: The replacement sealing structure includes a sealing gasket and a cover plate. Three replacement slots are opened on the side of the filter barrel. The replacement slots are arranged on the side of the filter layer. The cover plate is rotatably connected to the side of the filter barrel through a rotating shaft, and the sealing gasket is fixedly connected to the outside of the replacement slot.

[0012] In order to better achieve the above object, the present utility model adopts a further technical solution: The heating structure includes a heating pipe. The heating barrel is provided with an inner groove, and the heating pipe is arranged in the inner groove.

[0013] In order to better achieve the above object, the present utility model adopts a further technical solution: An upper connecting pipe is fixedly connected between the upper ends of the water bath barrel and the filter barrel, and a lower connecting pipe is fixedly connected between the filter barrel and the heating barrel.

[0014] The advantages of the present utility model are as follows: By arranging three filter layers inside the filter barrel and replacement slots outside the filter barrel, the filter layers inside the filter barrel can be replaced through the replacement slots. In addition, a sealing gasket is arranged outside the replacement slots, and a cover plate is arranged outside the filter barrel. The filter barrel can be sealed through the cover plate and the sealing gasket. By arranging the water bath barrel and the heating barrel beside the filter barrel, a spraying component is provided in the water bath barrel, so that large particles in the waste gas are initially screened out. The waste gas passing through the filter barrel is then transmitted into the heating barrel, and the inside of the heating barrel is heated by the heating pipe, so that the residual toxic gas in the waste gas is heated and decomposed and finally safely discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic external structure diagram of the waste gas treatment device for the painting booth in the painting workshop proposed by the present utility model;

[0016] Figure 2 This is a schematic side view structure diagram of the waste gas treatment device for the spray painting booth in the coating workshop proposed by the present utility model;

[0017] Figure 3 This is a schematic internal cross-sectional structure diagram of the water bath bucket of the waste gas treatment device for the spray painting booth in the coating workshop proposed by the present utility model;

[0018] Figure 4 This is a schematic internal cross-sectional structure diagram of the filter bucket of the waste gas treatment device for the spray painting booth in the coating workshop proposed by the present utility model;

[0019] Figure 5 This is a schematic internal cross-sectional structure diagram of the heating bucket of the waste gas treatment device for the spray painting booth in the coating workshop proposed by the present utility model.

[0020] In the figure: 1 water bath bucket, 2 filter bucket, 3 heating bucket, 4 intake pipe, 5 drain pipe, 6 water inlet pipe, 7 spray head, 8 fixed rod, 9 motor, 10 negative pressure fan, 11 upper connecting pipe, 12 filter layer, 13 replacement tank, 14 sealing gasket, 15 cover plate, 16 lower connecting pipe, 17 heating pipe. Specific embodiments

[0021] The technical solutions in the present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] Refer to Figures 1 - 5 As shown, the waste gas treatment device for the spray painting booth in the coating workshop includes: a water bath bucket 1, a filter bucket 2, and a heating bucket 3. The water bath bucket 1, the filter bucket 2, and the heating bucket 3 are arranged at equal distances in sequence. An intake pipe 4 is fixedly connected to the side of the filter bucket 2, a drain pipe 5 is fixedly connected to the bottom of the filter bucket 2, an upper connecting pipe 11 is fixedly connected between the upper ends of the water bath bucket 1 and the filter bucket 2, a lower connecting pipe 16 is fixedly connected between the filter bucket 2 and the heating bucket 3. A negative pressure intake structure is provided in the intake pipe 4, a spraying assembly is provided in the water bath bucket 1, three filter layers 12 are fixedly connected in the filter bucket 2, a replacement sealing structure is arranged on the side of the filter bucket 2, a heating structure is provided in the heating bucket 3. The negative pressure intake structure includes a fixed rod 8, a motor 9, and a negative pressure fan 10. The motor 9 is fixedly connected to the inside of the intake pipe 4 through the fixed rod 8, and the negative pressure fan 10 is fixedly connected to the output end of the motor 9.

[0023] The spraying assembly includes a water inlet pipe 6 and a spray head 7. The water inlet pipe 6 penetrates and is fixedly connected to the side wall of the water bath bucket 1. The water inlet pipe 6 is arranged in an "L" shape. The spray head 7 is fixedly connected to the lower surface of the water inlet pipe 6. A spraying assembly is provided in the water bath bucket 1, so that large particles in the waste gas can be preliminarily screened out.

[0024] The replacement sealing structure includes a sealing gasket 14 and a cover plate 15. Three replacement grooves 13 are provided on the side of the filter barrel 2. The replacement grooves 13 are arranged on the side of the filter layer 12. The cover plate 15 is rotatably connected to the side of the filter barrel 2 through a rotating shaft. The sealing gasket 14 is fixedly connected to the outside of the replacement groove 13. By providing three filter layers 12 inside the filter barrel 2 and replacement grooves 13 outside the filter barrel 2, the filter layers 12 inside the filter barrel 2 can be replaced through the replacement grooves 13. In addition, a sealing gasket 14 is provided outside the replacement groove 13, and the cover plate 15 is arranged outside the filter barrel 2, and the filter barrel 2 can be sealed through the cover plate 15 and the sealing gasket 14.

[0025] The heating structure includes a heating pipe 17. The heating barrel 3 is provided with an inner groove, and the heating pipe 17 is arranged in the inner groove. The inside of the heating barrel 3 is heated by the heating pipe 17, so that the residual toxic gases in the waste gas are heated and decomposed and finally safely discharged.

[0026] When the utility model is in use, by providing three filter layers 12 inside the filter barrel 2 and replacement grooves 13 outside the filter barrel 2, the filter layers 12 inside the filter barrel 2 can be replaced through the replacement grooves 13. In addition, a sealing gasket 14 is provided outside the replacement groove 13, and the cover plate 15 is arranged outside the filter barrel 2, and the filter barrel 2 can be sealed through the cover plate 15 and the sealing gasket 14. By providing a water bath barrel 1 and a heating barrel 3 beside the filter barrel 2, a spraying component is provided in the water bath barrel 1, so that large particles in the waste gas are initially screened out. The waste gas passing through the filter barrel 2 is then transmitted into the heating barrel 3, and the inside of the heating barrel 3 is heated by the heating pipe 17, so that the residual toxic gases in the waste gas are heated and decomposed and finally safely discharged.

Claims

1. The exhaust gas treatment device of the paint spraying room in the painting workshop is characterized by: The invention comprises a water bath barrel (1), a filter barrel (2) and a heating barrel (3), wherein the water bath barrel (1), the filter barrel (2) and the heating barrel (3) are arranged equidistantly in sequence, the side of the filter barrel (2) is fixedly connected to an air intake pipe (4), the bottom of the filter barrel (2) is fixedly connected to a drainage pipe (5), a negative pressure air intake structure is arranged in the air intake pipe (4), a spray assembly is arranged in the water bath barrel (1), three filter layers (12) are fixedly connected in the filter barrel (2), a replacement sealing structure is arranged on the side of the filter barrel (2), a heating structure is arranged in the heating barrel (3), and the negative pressure air intake structure comprises a fixing rod (8), a motor (9) and a negative pressure fan (10), the motor (9) is fixedly connected to the air intake pipe (4) through the fixing rod (8), and the negative pressure fan (10) is fixedly connected to the output end of the motor (9).

2. The exhaust gas treatment device for a paint spray booth in a paint shop according to claim 1 is characterized in that: The spray assembly comprises a water inlet pipe (6) and a spray head (7); the water inlet pipe (6) penetrates through and is fixedly connected to the side wall of the water bath (1); the water inlet pipe (6) is arranged in an "L" shape; and the spray head (7) is fixedly connected to the lower surface of the water inlet pipe (6).

3. The exhaust gas treatment device for a paint spray booth in a paint shop according to claim 1 is characterized in that: The replacement sealing structure comprises a sealing gasket (14) and a cover plate (15); three replacement grooves (13) are provided on the side of the filter barrel (2); the replacement grooves (13) are arranged on the side of the filter layer (12); the cover plate (15) is rotatably connected to the side of the filter barrel (2) via a rotating shaft; and the sealing gasket (14) is fixedly connected to the outside of the replacement grooves (13).

4. The exhaust gas treatment device for a paint spraying room in a paint shop according to claim 1 is characterized in that: The heating structure comprises a heating tube (17); the heating barrel (3) is provided with an inner groove; and the heating tube (17) is arranged in the inner groove.

5. The exhaust gas treatment device for a paint spray booth in a paint shop according to claim 1 is characterized in that: An upper connecting pipe (11) is fixedly connected between the upper ends of the water bath barrel (1) and the filter barrel (2), and a lower connecting pipe (16) is fixedly connected between the filter barrel (2) and the heating barrel (3).

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