Paint spraying waste gas treatment system

Abstract

The utility model relates to the field of paint spraying waste gas treatment, in particular to a paint spraying waste gas treatment system which comprises a steam chamber, one side of the steam chamber is communicated with a filter unit, the other side, far away from the steam chamber, of the filter unit is communicated with an activated carbon chamber, the filter unit comprises a filter box, and the filter box comprises a box door rotationally arranged on the front side. A filtering unit is arranged between a steam chamber and an activated carbon chamber in the waste gas treatment system, so that waste gas can be better purified and filtered, a sponge layer can absorb a large amount of water vapor in the waste gas, and the waste gas can be better purified and filtered. And the honeycomb zeolite molecular layer and the activated carbon adsorption layer which are arranged on the activated carbon chamber can better purify the waste gas, so that the workload of the activated carbon chamber is reduced, and the service life of the activated carbon chamber can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of paint spraying waste gas treatment, in particular to a paint spraying waste gas treatment system. Background Art

[0002] Car painting refers to applying a layer of paint on the surface of a car to protect it. Car painting generally uses baking paint. In a car manufacturing plant, after the welding of the frame and the shell is completed, the next process is painting. Car painting often produces waste gas. The main source of paint waste gas is the production workshop. The paint room, airing room, paint mixing room, drying room, etc. produce the most organic waste gas.

[0003] Among them, the utility model with authorization announcement number CN206499973U discloses a paint spraying waste gas treatment system. Although the waste gas in the paint spraying room is blown into the steam chamber by a fan, high-temperature steam is introduced into the steam chamber to fully mix with the waste gas to separate the toxic gas or dust powder dissolved in water in the waste gas, and the spiral disk on the fan and the stirring rod can accelerate the flow rate of the gas, thereby achieving the effect of large contact area between the waste gas and the steam and high dust removal and purification efficiency, the waste gas will contain liquid. If it is not treated, water vapor will enter the activated carbon chamber along with the waste gas, which will shorten the filtration service life of the activated carbon chamber. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a paint spraying waste gas treatment system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A paint spraying waste gas treatment system comprises a steam chamber, wherein the steam chamber is provided with a waste gas input port and a waste gas output port, the waste gas output port of the steam chamber is connected to a filter unit and an activated carbon chamber in sequence, the filter unit comprises a filter box, the filter box comprises a normally closed sealed box door rotatably arranged on the front side, a normally closed drainage pipe is connected to the middle part of the bottom surface of the filter box body, a plurality of mounting frames arranged in parallel and separated along the longitudinal direction are horizontally inserted into the inner cavity of the filter box, a sponge layer is arranged in the mounting frame of the bottom layer in the filter box, a honeycomb zeolite molecular layer is arranged in the mounting frame of the middle layer in the filter box, and an activated carbon adsorption layer is arranged in the mounting frame of the top layer in the filter box.

[0007] In addition, the preferred structure is that the steam chamber is connected to the lower part of the filter box, and the activated carbon chamber is connected to the upper part of the filter box, so that the gas in the steam chamber passes through the sponge layer, the honeycomb zeolite molecular layer and the activated carbon adsorption layer in sequence and then enters the activated carbon chamber.

[0008] In addition, a preferred structure is that slots are symmetrically provided on the side walls on both sides of the inner cavity of the filter box, installation frames are inserted and installed in the slots, a liquid guide portion with an inclined bottom wall is provided at the bottom of the inner cavity of the filter box, and a drainage pipe is connected to the middle of the bottom wall of the liquid guide portion.

[0009] In addition, a preferred structure is that the installation frame includes plug blocks fixedly connected on both sides, the plug blocks can be inserted into the slots, and the installation frame is provided with a groove on a surface of one side adjacent to the plug block.

[0010] In addition, the preferred structure is that a rubber gasket is attached to the side surface of one side of the groove of the mounting frame, and a rubber gasket is attached to the other side surface of the mounting frame away from the groove, and rubber strips are arranged on the upper and lower surfaces of the two side plugs.

[0011] In addition, a preferred structure is that the steam chamber, the activated carbon chamber and the filter box are connected by a pipeline, and fans are provided on the pipelines.

[0012] In addition, a preferred structure is that a liquid collecting tank is provided below the liquid discharge pipe.

[0013] In addition, a preferred structure is that support feet are provided at the bottom of the filter box, and the liquid collecting box is installed on the support feet.

[0014] In addition, a preferred structure is that the box door is provided with a perspective window.

[0015] The beneficial effects of the utility model are as follows: by arranging a filtering unit between the steam chamber and the activated carbon chamber in the exhaust gas treatment system, the exhaust gas can be better purified and filtered, and the arranged sponge layer can absorb a large amount of water vapor in the exhaust gas, thereby ensuring that the exhaust gas subsequently entering the activated carbon chamber does not carry a large amount of water vapor, thereby extending the service life of the activated carbon chamber, and the honeycomb zeolite molecular layer and activated carbon adsorption layer arranged above can better purify the exhaust gas, thereby reducing the workload of the activated carbon chamber and also extending the service life of the activated carbon chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the paint exhaust gas treatment system;

[0017] Figure 2 is a structural schematic diagram of a filtration unit;

[0018] Figure 3 It is a structural schematic diagram of a filter box cavity with a mounting frame installed;

[0019] Figure 4 A schematic diagram of a structure with different materials for the installation frame;

[0020] Figure 5 It is a structural diagram of the installation frame;

[0021] Figure 6 A structural schematic diagram of the installation frame from another perspective;

[0022] Figure 7 Schematic diagram of the filter box structure.

[0023] In the figure: 1 steam chamber, 2 pipeline, 3 fan, 4 filter unit, 41 filter box, 411 slot, 412 liquid guide part, 42 box door, 5 activated carbon chamber, 6 drainage pipe, 7 liquid collecting box, 8 installation frame, 81 plug block, 82 groove, 83 rubber gasket, 84 rubber strip, 9 sponge layer, 10 honeycomb zeolite molecular layer, 11 activated carbon adsorption layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-7 A paint spraying waste gas treatment system includes a steam chamber 1, which is provided with a waste gas input port and a waste gas output port. The waste gas output port of the steam chamber 1 is connected to a filter unit 4 and an activated carbon chamber 5 in sequence. The filter unit 4 includes a filter box 41, and the filter box 41 includes a normally closed sealed box door 42 that is rotatably arranged on the front side. A normally closed drainage pipe 6 is connected to the middle part of the bottom surface of the filter box 41. A plurality of mounting frames 8 that are arranged in parallel and separated along the longitudinal direction are horizontally inserted into the inner cavity of the filter box 41. A sponge layer 9 is arranged in the mounting frame 8 of the bottom layer in the filter box 41, a honeycomb zeolite molecular layer 10 is arranged in the mounting frame 8 of the middle layer in the filter box 41, and an activated carbon adsorption layer 11 is arranged in the mounting frame 8 of the top layer in the filter box 41. The sponge layer 9 can absorb water vapor in the exhaust gas.

[0026] In addition, the steam chamber 1 is connected to the lower part of the filter box 41, and the activated carbon chamber 5 is connected to the upper part of the filter box 41, so that the gas in the steam chamber 1 passes through the sponge layer 9, the honeycomb zeolite molecular layer 10 and the activated carbon adsorption layer 11 in sequence and then enters the activated carbon chamber 5. The activated carbon chamber 5 can perform preliminary purification of the exhaust gas.

[0027] In addition, slots 411 are symmetrically provided on the side walls on both sides of the inner cavity of the filter box 41, and an installation frame 8 is inserted and installed in the slots 411. A liquid guide portion 412 with an inclined bottom wall is provided at the bottom of the inner cavity of the filter box 41. A drainage pipe 6 is connected to the middle of the bottom wall of the liquid guide portion 412. The liquid guide portion 412 facilitates the collection of flowing water vapor to the drainage pipe 6.

[0028] Moreover, the installation frame 8 includes an insertion block 81 fixedly connected on both sides, and the insertion block 81 can be inserted into the slot 411. The installation frame 8 is provided with a groove 82 on the surface of one side adjacent to the insertion block 81. The groove 82 facilitates the operator to hold the installation frame 8 by hand and then pull the installation frame 8 out of the slot 411.

[0029] Among them, a rubber gasket 83 is attached to the side surface of the mounting frame 8 on one side of the groove 82, and a rubber gasket 83 is attached to the other side surface of the mounting frame 8 away from the groove 82. Rubber strips 84 are arranged on the upper and lower surfaces of the plug blocks 81 on both sides. The rubber gasket 83 and the rubber strip 84 can improve the sealing of the plug-in joints to prevent exhaust gas from flowing out from these plug-in joints instead of flowing out from the middle material layer.

[0030] Moreover, the steam chamber 1 , the activated carbon chamber 5 and the filter box 41 are connected by a pipeline 2 , and a fan 3 is provided on the pipeline 2 .

[0031] In addition, a liquid collecting box 7 is provided below the drainage pipe 6 , and supporting feet are provided at the bottom of the filter box 41 . The liquid collecting box 7 is installed on the supporting feet. The liquid collecting box 7 is convenient for collecting wastewater discharged from the drainage pipe 6 .

[0032] Moreover, the box door 42 is provided with a perspective window to facilitate observation by the operator.

[0033] In the present embodiment, after the gas is purified in the steam chamber 1, the exhaust gas enters the filter unit 4 under the action of the fan 3 and the pipeline 2. After the exhaust gas enters the inner cavity of the filter box 41, because the fan 3 on the other side cooperates with the pipeline 2 to extract the exhaust gas at the upper end, the exhaust gas will pass through the bottom sponge layer 9, the middle honeycomb zeolite molecular layer 10, and the top activated carbon adsorption layer 11 in sequence. In this process, the sponge layer 9 will absorb most of the water vapor in the exhaust gas, and then the middle honeycomb zeolite molecular layer 10 can effectively adsorb harmful substances and impurities in the exhaust gas, and the top activated carbon adsorption layer 11 can replace the activated carbon chamber 5 to adsorb the activated carbon first, which can extend the adsorption and purification life of the activated carbon chamber 5. Moreover, because these material layers are arranged on the mounting frame 8, the box door 42 can be opened regularly for replacement.

[0034] When replacement is needed, the box door 42 is opened, and the operator grabs the groove 82 with his hand, and then pulls out the installation frame 8, so that the plug block 81 is separated from the slot 411, and then a new material layer can be replaced.

[0035] Some water vapor will remain at the bottom of the filter box 41. Under the action of gravity, the water vapor will flow to the bottom wall of the liquid guide part 412. The drainage pipe 6 can be opened regularly to discharge the water vapor and collect it in the liquid collection box 7.

[0036] In the utility model, a filter unit 4 is arranged between the steam chamber 1 and the activated carbon chamber 5 in the exhaust gas treatment system, so that the exhaust gas can be better purified and filtered, and the arranged sponge layer 9 can absorb a large amount of water vapor in the exhaust gas, thereby ensuring that the exhaust gas subsequently entering the activated carbon chamber 5 does not carry a large amount of water vapor, thereby extending the service life of the activated carbon chamber 5, and the honeycomb zeolite molecular layer 10 and the activated carbon adsorption layer 11 arranged above can better purify the exhaust gas, thereby reducing the workload of the activated carbon chamber 5 and also extending the service life of the activated carbon chamber 5.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A paint spraying waste gas treatment system, comprising a steam chamber (1), wherein the steam chamber (1) is provided with a waste gas input port and a waste gas output port, characterized in that: The exhaust gas outlet of the steam chamber (1) is connected to a filter unit (4) and an activated carbon chamber (5) in sequence, the filter unit (4) comprises a filter box (41), the filter box (41) comprises a normally closed sealed box door (42) rotatably arranged at the front side, a normally closed liquid discharge pipe (6) is connected to the middle of the bottom surface of the filter box (41), a plurality of mounting frames (8) arranged in parallel and spaced relation in the longitudinal direction are horizontally inserted into the inner cavity of the filter box (41), a sponge layer (9) is arranged in the mounting frame (8) of the bottom layer in the filter box (41), a honeycomb zeolite molecular layer (10) is arranged in the mounting frame (8) of the middle layer in the filter box (41), and an activated carbon adsorption layer (11) is arranged in the mounting frame (8) of the top layer in the filter box (41).

2. A paint spraying waste gas treatment system according to claim 1, characterized in that: The steam chamber (1) is connected to the lower part of the filter box (41), and the activated carbon chamber (5) is connected to the upper part of the filter box (41), so that the gas in the steam chamber (1) passes through the sponge layer (9), the honeycomb zeolite molecular layer (10) and the activated carbon adsorption layer (11) in sequence before entering the activated carbon chamber (5).

3. A paint spraying waste gas treatment system according to claim 2, characterized in that: Slots (411) are symmetrically provided on the side walls on both sides of the inner cavity of the filter box (41), and a mounting frame (8) is inserted and installed in the slots (411). A liquid guide portion (412) with an inclined bottom wall is provided at the bottom of the inner cavity of the filter box (41), and a liquid discharge pipe (6) is provided in communication with the middle of the bottom wall of the liquid guide portion (412).

4. A paint spraying waste gas treatment system according to claim 1, characterized in that: The installation frame (8) comprises plug blocks (81) fixedly connected at two sides, the plug blocks (81) can be inserted into the slots (411), and a groove (82) is provided on a surface of the installation frame (8) adjacent to the plug blocks (81).

5. A paint spraying waste gas treatment system according to claim 4, characterized in that: A rubber gasket (83) is attached to the side edge of one surface of the mounting frame (8) located at the groove (82), and a rubber gasket (83) is attached to the other surface of the mounting frame (8) away from the groove (82), and rubber strips (84) are arranged on the upper and lower surfaces of the plug blocks (81) on both sides.

6. A paint spraying waste gas treatment system according to claim 1, characterized in that: The steam chamber (1), the activated carbon chamber (5) and the filter box (41) are connected by a pipeline (2), and a fan (3) is provided on the pipeline (2).

7. A paint spraying waste gas treatment system according to claim 1, characterized in that: A liquid collecting box (7) is arranged below the liquid discharge pipe (6).

8. A paint spraying waste gas treatment system according to claim 7, characterized in that: The bottom of the filter box (41) is provided with supporting feet, and the liquid collecting box (7) is installed on the supporting feet.

9. A paint spraying waste gas treatment system according to claim 1, characterized in that: The box door (42) is provided with a perspective window.

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