Coating waste gas pretreatment purification device

Abstract

The utility model provides a coating waste gas pretreatment purification device, which belongs to the field of waste gas purification and comprises a base, a spray tower is arranged at the top of the base, a spray component is arranged on the surface of the spray tower, the top of the spray tower is fixedly connected with the top of a filter box through a conveying pipe, and one side of the filter box is connected with an adsorption catalysis component through a gas guide pipe. Coating waste gas is fed into the spraying tower through the gas inlet pipe, the water pump is matched with the water pumping pipe to pump liquid mixed with deodorant out of the water tank, then the liquid is fed into the annular pipe through the water feeding pipe, the annular pipe is matched with the spraying cover pipes to spray the liquid, and gas and liquid in the spraying tower are mixed; and a plurality of heating pipes on the inner wall of the spray tower are matched to increase the temperature in the tower, so that the motion activity of the gas is improved, and the dust removal effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of waste gas purification, in particular to a painting waste gas pretreatment purification device. Background Art

[0002] In the industrial production process, the paint spraying process is an indispensable and important part. The paint mist exhaust gas generated in the paint spraying process must be treated to meet the standards before it can be discharged. At present, the main equipment for removing paint mist is a water curtain paint mist removal device, which will filter and treat the toxic substances in the exhaust gas to meet the emission standards. After searching the application number CN201620062077.6, a coating line paint mist exhaust gas pretreatment and purification device was disclosed. It records that in the process of fog and water mist combining to form suspended matter and growing up, an internal porous non-sticky water paint polymer is formed, so that a large amount of volatile organic matter and organic waste gas are enclosed in large pieces of water paint polymer, thereby greatly reducing the processing load of subsequent processing equipment. However, the above description still has the following defects in actual use: the existing coating exhaust gas pretreatment and purification device lacks a hierarchical processing structure when in use, resulting in insufficient purification effect, which causes the exhaust gas after discharge to cause a certain degree of environmental pollution. Therefore, it is necessary to design a coating exhaust gas pretreatment and purification device with strong practicality. Utility Model Content

[0003] The purpose of the utility model is to provide a painting waste gas pretreatment and purification device to solve the problems raised by the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a painting waste gas pretreatment purification device, comprising a base, a spray tower is arranged on the top of the base, a spray assembly is arranged on the surface of the spray tower, the top of the spray tower is fixedly connected to the top of the filter box through a delivery pipe, and one side of the filter box is installed and connected to the adsorption catalytic assembly through an air guide pipe;

[0005] The spray assembly includes a mounting ring mounted on the surface of the spray tower, an annular groove is formed on the inner wall of the mounting ring, an annular tube is formed on the inner wall of the annular groove, a plurality of spray cover tubes are formed on the inner wall of the annular tube, a water supply pipe is fixedly connected to the surface of the annular tube, the bottom of the water supply pipe is fixedly connected to the water outlet of the water pump, the water inlet of the water pump is connected to the top of the water tank through a water pump, and the bottom of the water tank is fixedly connected to one side of the top of the base;

[0006] The adsorption catalytic component includes a connecting tube fixedly connected to the other end of the air guide pipe, the bottom of the connecting tube is snap-connected with the bottom of the inner wall of the mounting frame, the top of the connecting tube is through-connected with the bottom of several reaction cylinders through several mounting tubes, several reaction cylinders are provided with activated carbon and catalysts inside, the tops of several reaction cylinders are snap-connected with the top of the inner wall of the mounting frame, the tops of several reaction cylinders are fixedly connected with the bottom of the gas supply pipe through the gas outlet pipe, and the other end of the gas supply pipe is provided with a lower-level connecting pipe.

[0007] As a preferred solution of the utility model: the inner wall of the filter box is respectively provided with a dust removal plate and a filter oil layer.

[0008] As a preferred solution of the utility model: a plurality of heating tubes are arranged on the side of the inner wall of the spray tower, an air inlet pipe is arranged on one side of the spray tower, and a drainage pipe is arranged at the bottom of the other side of the spray tower.

[0009] As a preferred solution of the utility model: a through hole is opened on the side of the installation ring, and the inner wall of the through hole is interlaced and connected with the surface of the water supply pipe.

[0010] As a preferred solution of the utility model: an arc-shaped groove is provided at the bottom of the inner wall of the mounting frame, and the inner wall of the arc-shaped groove is snap-connected with the bottom of the connecting pipe.

[0011] As a preferred solution of the utility model: a plurality of through grooves are provided on the top of the inner wall of the mounting frame, the inner walls of the plurality of through grooves are interlaced and connected with the surfaces of the plurality of reaction tubes, a snap-in groove is provided on the edge of the inner wall of the through groove, and the inner wall of the snap-in groove is snap-connected with a fixing ring provided on the top of the reaction tube.

[0012] As a preferred solution of the utility model: control valves are provided on the surfaces of a plurality of the installation pipes and the air outlet pipes.

[0013] As a preferred solution of the utility model: the surface of the bottom end of the gas delivery pipe is fixedly connected to the top of the mounting frame through a plurality of arc-shaped support seats.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The painting exhaust gas is sent into the spray tower through the air inlet pipe. The water pump cooperates with the water pumping pipe to extract the liquid mixed with the deodorant from the water tank, and then sends it into the annular pipe through the water supply pipe. The annular pipe cooperates with several spray hood pipes to spray the liquid, and the gas inside the spray tower is mixed with gas and liquid, so as to absorb and drop the dust impurities in the exhaust gas. Cooperate with several heating pipes on the inner wall of the spray tower to increase the temperature inside the tower and improve the kinetic activity of the gas, so as to improve the dust removal effect;

[0016] (2) The exhaust gas in the spray tower is transported into the filter box through the delivery pipe, and the dust impurities and oil impurities remaining in the exhaust gas are filtered out respectively by the dust removal plate and the filter oil layer, and then the exhaust gas is sent into the connecting pipe in conjunction with the air guide pipe. The gas inside the connecting pipe is successively sent into several reaction cylinders by cooperating with several installation pipes, and the exhaust gas is catalytically adsorbed by cooperating with the activated carbon and catalyst in the cylinder. After a period of time, the control valve is opened, and the exhaust gas is sent into the air delivery pipe in conjunction with several outlet pipes, and finally enters the subsequent combustion catalysis through the lower connecting pipe, thereby realizing the pretreatment and purification of the coating exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the spray assembly of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the adsorption catalytic component of the utility model.

[0021] In the figure: 1. base; 11. spray tower; 12. delivery pipe; 13. filter box; 131. dust removal plate; 132. filter oil layer; 14. air guide pipe; 15. heating pipe; 16. air inlet pipe; 17. drain pipe; 2. spray assembly; 21. mounting ring; 22. annular groove; 23. annular pipe; 24. spray hood pipe; 25. water supply pipe; 26. water pump; 27. water suction pipe; 28. water tank; 29. ​​through hole; 3. adsorption catalytic assembly; 31. connecting pipe; 32. mounting frame; 33. mounting pipe; 34. reaction cylinder; 35. air outlet pipe; 36. air delivery pipe; 37. lower connecting pipe; 38. arc groove; 39. through groove; 310. clamping groove; 311. fixing ring; 312. control valve; 313. arc support seat. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4A coating waste gas pretreatment and purification device comprises a base 1, a spray tower 11 is arranged on the top of the base 1, a spray assembly 2 is arranged on the surface of the spray tower 11, the top of the spray tower 11 is fixedly connected to the top of a filter box 13 through a delivery pipe 12, and one side of the filter box 13 is installed and connected to an adsorption catalytic assembly 3 through an air guide pipe 14;

[0024] See also Figure 3 The spray assembly 2 includes a mounting ring 21 mounted on the surface of the spray tower 11, an annular groove 22 is provided on the inner wall of the mounting ring 21, an annular tube 23 is provided on the inner wall of the annular groove 22, a plurality of spray hood tubes 24 are provided on the inner wall of the annular tube 23, a water supply pipe 25 is fixedly connected to the surface of the annular tube 23, the bottom of the water supply pipe 25 is fixedly connected to the water outlet of the water pump 26, the water inlet of the water pump 26 is connected to the top of the water tank 28 through the water pump 27, and the bottom of the water tank 28 is fixedly connected to one side of the top of the base 1.

[0025] During specific use: the air inlet pipe 16 delivers the painting exhaust gas into the spray tower 11, the water pump 26 cooperates with the water pumping pipe 27 to extract the liquid mixed with the deodorant from the water tank 28, and then delivers it into the annular pipe 23 through the water supply pipe 25, the annular pipe 23 cooperates with a plurality of spray hood pipes 24 to spray the liquid, and mixes the gas inside the spray tower 11 with gas and liquid, so as to absorb and drop the dust impurities in the exhaust gas, cooperate with a plurality of heating pipes 15 on the inner wall of the spray tower 11 to increase the temperature inside the tower, and improve the kinetic activity of the gas, so as to improve the dust removal effect.

[0026] See also Figure 2 , Figure 4 The adsorption catalytic component 3 includes a connecting tube 31 fixedly connected to the other end of the air guide pipe 14, the bottom of the connecting tube 31 is snap-connected with the bottom of the inner wall of the mounting frame 32, the top of the connecting tube 31 is through-connected with the bottom of a plurality of reaction tubes 34 through a plurality of mounting tubes 33, the interiors of the plurality of reaction tubes 34 are provided with activated carbon and catalysts, the tops of the plurality of reaction tubes 34 are snap-connected with the top of the inner wall of the mounting frame 32, the tops of the plurality of reaction tubes 34 are fixedly connected with the bottom of the gas supply pipe 36 through the gas outlet pipe 35, and the other end of the gas supply pipe 36 is provided with a lower-level connecting pipe 37.

[0027] The inner wall of the filter box 13 is provided with a dust removal plate 131 and a filter oil layer 132 respectively.

[0028] During specific use: the delivery pipe 12 delivers the exhaust gas in the spray tower 11 into the filter box 13, cooperates with the dust removal plate 131 and the filter oil layer 132 to filter the dust impurities and oil impurities remaining in the exhaust gas respectively, and then cooperates with the air guide pipe 14 to deliver the exhaust gas into the connecting pipe 31. The gas inside the connecting pipe 31 cooperates with a number of installation pipes 33 in turn to deliver the exhaust gas into a number of reaction cylinders 34, and cooperates with the activated carbon and catalyst in the cylinder to catalytically adsorb the exhaust gas. After a period of time, the control valve 312 is opened, and the exhaust gas is delivered to the air delivery pipe 36 in cooperation with a number of exhaust pipes 35, and finally enters the subsequent combustion catalysis through the lower connecting pipe 37, thereby realizing the pretreatment and purification of the coating exhaust gas.

[0029] See also Figure 2 A plurality of heating pipes 15 are provided on the side of the inner wall of the spray tower 11 , an air inlet pipe 16 is provided on one side of the spray tower 11 , and a drainage pipe 17 is provided at the bottom of the other side of the spray tower 11 .

[0030] In specific use: a plurality of heating tubes 15 can increase the temperature in the tower and improve the kinetic activity of the gas, so as to improve the dust removal effect. The drainage pipe 17 at the bottom is convenient for discharging the waste water stored in the spray tower 11.

[0031] See also Figure 3 A through hole 29 is opened on the side of the mounting ring 21 , and the inner wall of the through hole 29 is interlaced and connected with the surface of the water supply pipe 25 .

[0032] During specific use, the surface of the water supply pipe 25 is connected through the inner wall of the through hole 29 , so that it is easy to install and fix it with the mounting ring 21 .

[0033] See also Figure 4 An arc-shaped groove 38 is formed at the bottom of the inner wall of the mounting frame 32 , and the inner wall of the arc-shaped groove 38 is engaged with the bottom of the connecting pipe 31 .

[0034] When in use, the bottom of the connecting pipe 31 is engaged with the inner wall of the arc-shaped groove 38 , so that it is easy to install and fix it to the mounting frame 32 .

[0035] See also Figure 4 A plurality of through grooves 39 are provided at the top of the inner wall of the mounting frame 32, and the inner walls of the plurality of through grooves 39 are interlacedly connected with the surfaces of the plurality of reaction tubes 34. A snap-fit ​​groove 310 is provided at the edge of the inner wall of the through groove 39, and the inner wall of the snap-fit ​​groove 310 is snap-fitted with a fixing ring 311 provided at the top of the reaction tube 34.

[0036] During specific use, the surfaces of the reaction cylinders 34 are connected through the inner walls of the through grooves 39 , and the fixing rings 311 on the surfaces thereof are engaged with the clamping grooves 310 , so as to facilitate the installation and fixing of the reaction cylinders 34 with the mounting frame 32 .

[0037] See also Figure 4 A control valve 312 is provided on the surface of the plurality of mounting pipes 33 and the air outlet pipe 35 .

[0038] During specific use, the control valves 312 on the surfaces of the mounting pipes 33 and the gas outlet pipe 35 facilitate the control of the gas flow in the pipes.

[0039] See also Figure 4 The surface of the bottom end of the gas delivery pipe 36 is fixedly connected to the top of the mounting frame 32 through a plurality of arc-shaped support seats 313 .

[0040] During specific use, a plurality of arc-shaped support seats 313 are engaged with the surface of the bottom end of the gas delivery pipe 36 , thereby facilitating its fixing to the top support of the mounting frame 32 .

[0041] When in use, the air inlet pipe 16 delivers the coating waste gas into the spray tower 11, the water pump 26 cooperates with the water pumping pipe 27 to extract the liquid mixed with the deodorant from the water tank 28, and then delivers it into the annular pipe 23 through the water delivery pipe 25. The annular pipe 23 cooperates with a plurality of spray hood pipes 24 to spray the liquid, mix the gas inside the spray tower 11 with gas and liquid, absorb and drop the dust and impurities in the waste gas, cooperate with a plurality of heating pipes 15 on the inner wall of the spray tower 11 to increase the temperature inside the tower, and improve the kinetic activity of the gas, so as to improve the dust removal effect; the delivery pipe 12 delivers the waste gas in the spray tower 11 into the filter box 1 3, cooperate with the dust removal plate 131 and the filter oil layer 132 to filter the dust impurities and oil impurities remaining in the exhaust gas respectively, and then cooperate with the air guide pipe 14 to send the exhaust gas into the connecting pipe 31, and the gas inside the connecting pipe 31 cooperates with several installation pipes 33 to send the exhaust gas into several reaction cylinders 34 in turn, and cooperates with the activated carbon and catalyst in the cylinder to catalytically adsorb the exhaust gas. After a period of time, the control valve 312 is opened, and the exhaust gas is sent into the air supply pipe 36 in cooperation with several outlet pipes 35, and finally enters the subsequent combustion catalysis through the lower connecting pipe 37, thereby realizing the pretreatment and purification of the coating exhaust gas.

[0042] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to 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 shall be included in the protection scope of the present invention.

Claims

1. A painting waste gas pretreatment and purification device, characterized in that: The invention comprises a base (1), a spray tower (11) is arranged on the top of the base (1), a spray assembly (2) is arranged on the surface of the spray tower (11), the top of the spray tower (11) is fixedly connected to the top of a filter box (13) via a delivery pipe (12), and one side of the filter box (13) is installed and connected to an adsorption catalytic assembly (3) via an air guide pipe (14); The spray assembly (2) comprises a mounting ring (21) mounted on the surface of the spray tower (11), the inner wall of the mounting ring (21) is provided with an annular groove (22), the inner wall of the annular groove (22) is provided with an annular tube (23), the inner wall of the annular tube (23) is provided with a plurality of spray cover tubes (24), the surface of the annular tube (23) is fixedly connected with a water supply pipe (25), the bottom of the water supply pipe (25) is fixedly connected with the water outlet of a water pump (26), the water inlet of the water pump (26) is connected to the top of a water tank (28) through a water pump (27), and the bottom of the water tank (28) is fixedly connected to one side of the top of the base (1); The adsorption catalytic component (3) comprises a connecting tube (31) fixedly connected to the other end of the air guide tube (14); the bottom of the connecting tube (31) is snap-connected to the bottom of the inner wall of the mounting frame (32); the top of the connecting tube (31) is through-connected to the bottom of a plurality of reaction tubes (34) via a plurality of mounting tubes (33); the interiors of the plurality of reaction tubes (34) are provided with activated carbon and a catalyst; the tops of the plurality of reaction tubes (34) are snap-connected to the top of the inner wall of the mounting frame (32); the tops of the plurality of reaction tubes (34) are fixedly connected to the bottom of the gas supply pipe (36) via an air outlet pipe (35); the other end of the gas supply pipe (36) is provided with a lower connecting pipe (37).

2. The coating waste gas pretreatment and purification device according to claim 1 is characterized in that: The inner wall of the filter box (13) is respectively provided with a dust removal plate (131) and a filter oil layer (132).

3. The coating waste gas pretreatment and purification device according to claim 1 is characterized in that: A plurality of heating pipes (15) are arranged on the side of the inner wall of the spray tower (11), an air inlet pipe (16) is arranged on one side of the spray tower (11), and a drainage pipe (17) is arranged at the bottom of the other side of the spray tower (11).

4. The coating waste gas pretreatment and purification device according to claim 1 is characterized in that: A through hole (29) is provided on the side of the mounting ring (21), and the inner wall of the through hole (29) is interlaced and connected with the surface of the water supply pipe (25).

5. The coating waste gas pretreatment and purification device according to claim 1 is characterized in that: An arc-shaped groove (38) is provided at the bottom of the inner wall of the mounting frame (32), and the inner wall of the arc-shaped groove (38) is snap-connected with the bottom of the connecting pipe (31).

6. The coating waste gas pretreatment and purification device according to claim 1 is characterized in that: A plurality of through grooves (39) are provided at the top of the inner wall of the mounting frame (32), the inner walls of the plurality of through grooves (39) are interlacedly connected with the surfaces of the plurality of reaction cylinders (34), a snap-fit ​​groove (310) is provided at the edge of the inner wall of the through groove (39), the inner wall of the snap-fit ​​groove (310) is snap-fittedly connected with a fixing ring (311) provided at the top of the reaction cylinder (34).

7. The coating waste gas pretreatment and purification device according to claim 1 is characterized in that: Control valves (312) are provided on the surfaces of the plurality of mounting pipes (33) and the air outlet pipes (35).

8. The coating waste gas pretreatment and purification device according to claim 1 is characterized in that: The surface of the bottom end of the gas delivery pipe (36) is fixedly connected to the top of the mounting frame (32) via a plurality of arc-shaped support seats (313).

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