CN209630928U - Coating waste gas comprehensive treatment unit - Google Patents

Abstract

The utility model relates to a comprehensive treatment unit for painting waste gas, which comprises a housing, a spray assembly for washing the painting waste gas, a dewatering assembly for removing water in the painting waste gas, and a spray assembly for removing the painting waste gas. The baffle assembly and multi-stage filter assembly for dust particles, the housing is provided with an air inlet and an air outlet, and the spray assembly, water removal assembly, baffle assembly and multi-stage filter assembly The flow direction is sequentially set in the housing, and is located between the air inlet and the air outlet. The utility model is suitable for waste gas treatment of spraying lines in the painting industry. One piece of equipment can solve the problem of waste gas purification. The utility model has low investment cost, small floor area, simple and practical structure, and is beneficial to later maintenance and management.

Description

Coating waste gas comprehensive treatment unit

technical field

The utility model relates to the field of organic waste gas treatment, in particular to a comprehensive treatment unit for painting waste gas.

Background technique

Spraying paint is the most commonly used process in industrial manufacturing. It uses a spray gun to spray paint into a mist on metal or wood with the help of compressed air, and then dries and solidifies the paint to form a hard coating film, which plays a role in anti-corrosion and anti-rust. Beauty and the role of marking. However, since the paint contains various volatile organic compounds such as formaldehyde and benzene, if the paint mist volatilized during the painting operation is not collected and treated, it will affect the atmospheric environment and seriously endanger human health. Therefore, it is particularly important to treat the exhaust gas generated by spray painting.

At present, there are many treatment methods for spray paint exhaust gas on the market, such as water washing method, photocatalysis, adsorption method, combustion method and so on. In practical applications, two or more treatment processes are often combined to enhance the purification effect. Various methods have their own advantages and disadvantages, but generally have the disadvantages of large footprint and high cost. For example, when the commonly used water washing tower is connected in series with the activated carbon adsorption tower and the photo-oxygen catalyst, the entire unit occupies a large area and the equipment maintenance is troublesome. Considering the current urgency and importance of spray paint waste gas treatment, it is an ideal choice for suppliers to provide users with a purification equipment with a more optimized structure and lower cost.

Contents of the invention

The purpose of this utility model is to provide a comprehensive treatment unit for painting exhaust gas, which integrates several representative treatment functional sections and processes it into a highly efficient purification equipment specially used in the field of paint mist treatment with a simplified structure, and has The function of thoroughly purifying the paint exhaust gas.

For achieving the above object, the technical scheme that the utility model adopts is:

A painting exhaust gas comprehensive treatment unit, including a shell, a spray assembly for washing the painting exhaust gas, a water removal assembly for removing water in the painting exhaust gas, and a water removal assembly for removing dust particles in the painting exhaust gas A baffle assembly and a multi-stage filter assembly, the housing is provided with an air inlet and an air outlet, and the spray assembly, dewatering assembly, baffle assembly and multi-stage filter assembly are arranged in sequence along the flow direction of the painting waste gas It is inside the housing and located between the air inlet and the air outlet.

Preferably, the air inlet and the air outlet are respectively opened on both sides of the housing.

Further preferably, the spray assembly includes a spray pipe and a nozzle arranged on the spray pipe, the spray pipe extends vertically, and the orientation of the nozzle is in line with that of the exhaust gas from coating. flow in the opposite direction.

Further preferably, the spray assembly further includes a liquid tank connected to the spray pipe for supplying spray liquid, and the liquid tank is also arranged in the housing and located in the Below the nozzle, and the upper part of the liquid tank is open.

Further preferably, the dewatering assembly includes a plurality of dewatering plates arranged up and down, and channels for the passage of painting waste gas are formed between two adjacent dewatering plates.

Further preferably, the water removal plate includes horizontal parts on both sides and a curved part in the middle.

Further preferably, the baffle assembly includes at least one set of bent plates, each set of bent plates is provided with two pieces, the bending directions of the two bent plates are the same, and the bending direction of the previous one is One end of the bent plate is connected to the top of the shell, and one end of the latter bent plate is connected to the bottom of the shell.

Further preferably, the multi-stage filter assembly includes a dry filter and an activated carbon filter, and at least one of the activated carbon filter is provided.

Preferably, a slot for fixing the multi-stage filter assembly is provided inside the housing, and the multi-stage filter assembly is detachably arranged on the slot.

Preferably, an inspection door for inspection is opened on the casing.

Due to the application of the above-mentioned technical solutions, the utility model has the following advantages compared with the prior art:

The utility model is suitable for waste gas treatment of spraying lines in the painting industry. One piece of equipment can solve the problem of waste gas purification. The utility model has low investment cost, small floor area, simple and practical structure, and is beneficial to later maintenance and management.

Description of drawings

Accompanying drawing 1 is the structural representation of this embodiment.

Among them: 1. Shell; 10. Air inlet; 11. Air outlet; 12. Base; 20. Spray pipe; 21. Nozzle; 22. Liquid tank; 3. Water removal plate; 30. Horizontal part; 31. 4. Bending plate; 40. Vertical part; 41. Bending part; 50. Dry filter; 51. Activated carbon filter.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described:

A painting exhaust gas comprehensive treatment unit as shown in Figure 1, including a housing 1, a spray assembly for washing the painting exhaust gas, a water removal assembly for removing water in the painting exhaust gas, and a water removal assembly for removing Baffle assembly and multi-stage filter assembly for dust particles in the coating exhaust gas. in:

The housing 1 is provided with an air inlet 10 and an air outlet 11, and the air inlet 10 and the air outlet 11 are respectively provided on both sides of the housing 1, that is, the housing 1 adopts a horizontal type, so that the exhaust gas from painting enters through the air inlet 10 horizontal flow. The shell 1 is made of metal steel plate, and the base 12 is installed on the bottom of the shell 1 .

The spray assembly, the water removal assembly, the baffle assembly and the multi-stage filter assembly are sequentially arranged in the casing 1 along the flow direction of the painting exhaust gas, and are located between the air inlet 10 and the air outlet 11 . Specifically:

The spray assembly includes a spray pipe 20 and a nozzle 21 arranged on the spray pipe 20. The spray pipe 20 extends vertically, and the direction of the nozzle 21 is opposite to the flow direction of the coating exhaust gas. Multiple shower pipes 20 can be provided as required, and multiple nozzles 21 are provided on each shower pipe 20 . The spray assembly also includes a liquid tank 22 which communicates with the spray pipe 20 and supplies spray liquid for it. The liquid tank 22 is also arranged in the housing 1 and is positioned below the nozzle 21, and the top of the liquid tank 22 is open, so that , the spray liquid sprayed from the nozzle 21 returns to the liquid tank 22, and the liquid supply cycle spraying can be carried out by the pump. In addition, the liquid tank 22 automatically replenishes water according to the control of the liquid level gauge; the bottom of the liquid tank 22 is sloped, which can also facilitate sewage discharge.

The dewatering assembly includes a plurality of dewatering plates 3 arranged up and down, and channels for the passage of painting waste gas are formed between two adjacent dewatering plates 3 . The number of water removal plates 3 can extend to the position above the liquid tank 22 . The dewatering plate 3 adopts metal or fiberglass curved plate. Specifically, the dewatering plate 3 includes horizontal portions 30 on both sides and a curved portion 31 in the middle. In this embodiment, the curved portion 31 is in the shape of an upward arch.

The baffle assembly includes at least one set of bent plates 4, and each set of bent plates 4 is provided with two pieces, one set is shown as an example. The bending directions of the two bending plates 4 are consistent, and one end of the former bending plate 4 is connected to the top of the housing 1 , and one end of the latter bending plate 4 is connected to the bottom of the housing 1 . The bent plate 4 shown in the figure has a vertical part 40 and a bent part 41. One end of the vertical part 40 is connected to the housing 1. The angle between the bent part 41 and the vertical part 40 is greater than 0 degrees and less than 180 degrees. .

The multi-stage filter assembly includes a dry filter 50 and an activated carbon filter 51, at least one activated carbon filter 51 is provided, and two are taken as an example in the figure. Inside the casing 1 is provided a slot for fixing the multi-stage filter assembly, and the multi-stage filter assembly is detachably arranged on the slot. The dry filter 50 and the activated carbon filter 51 can show their final resistance by differential pressure to determine whether they need to be replaced.

In addition, the casing 1 is provided with an inspection door for inspection, allowing personnel to enter for maintenance and replacement operations.

According to the characteristics of the exhaust gas from painting, this embodiment integrates the three processes of water washing, dry filtration and adsorption. The exhaust gas from painting enters from the horizontal direction of the air inlet 10, and passes through the spray assembly, water removal assembly, and baffle in turn. The components and multi-stage filter components are discharged from the air outlet 11 in sequence, effectively removing the paint mist particles in the coating waste gas, absorbing organic waste gas (benzene, toluene, xylene, etc.), and achieving high treatment efficiency.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (10)

1. a kind of coating waste gas integrated treatment unit, it is characterised in that: including shell, the spray for being washed to coating waste gas Leaching component, for remove moisture content in coating waste gas except water assembly, the baffle plate assembly for removing dust granule in coating waste gas And multistage filtering component, air inlet, gas outlet are opened up on the shell, the spray assemblies remove water assembly, baffle group Part and multistage filtering component are successively set in the shell along coating waste gas flow direction, and are located at the air inlet Between mouth, gas outlet.

2. coating waste gas integrated treatment unit according to claim 1, it is characterised in that: the air inlet, gas outlet It is provided with the two sides of the shell respectively.

3. coating waste gas integrated treatment unit according to claim 2, it is characterised in that: the spray assemblies include spray Shower pipe, the nozzle being arranged on the spray tube, the spray tube extend along the vertical direction, the nozzle direction with The flow direction of coating waste gas is opposite.

4. coating waste gas integrated treatment unit according to claim 3, it is characterised in that: the spray assemblies further include It is connected with the spray tube and carries out the liquid case for spray liquid for it, the liquid case is also disposed in the shell and position In the lower section of the nozzle, and the opened upper end of the liquid case.

5. coating waste gas integrated treatment unit according to claim 2, it is characterised in that: the water assembly that removes includes more A water removal plate setting up and down, the channel that formation passes through for coating waste gas between the two neighboring water removal plate.

6. coating waste gas integrated treatment unit according to claim 5, it is characterised in that: the water removal plate includes being located at The horizontal part of two sides is located in the middle bending section.

7. coating waste gas integrated treatment unit according to claim 2, it is characterised in that: the baffle plate assembly includes extremely Few one group of bending plate, bending plate described in every group be provided with two pieces, two pieces described in bending plate bending direction it is consistent and preceding Bending plate one end described in one piece is connected to the top of the shell, and one end of bending plate described in latter piece is connected to described Shell bottom.

8. coating waste gas integrated treatment unit according to claim 2, it is characterised in that: the multistage filtering component packet Dry filter, active carbon filter are included, the active carbon filter is provided at least one.

9. coating waste gas integrated treatment unit according to claim 1, it is characterised in that: the enclosure interior is provided with For the card slot of the fixed multistage filtering component, the multistage filtering component is removably disposed at the card slot On.

10. coating waste gas integrated treatment unit according to claim 1, it is characterised in that: offered on the shell Maintenance door used for overhaul.