Waste gas recycling device of coating machine

Abstract

The invention discloses a waste gas recycling and reusing device of a coating machine. The waste gas recycling and reusing device comprises a machine body shell, a feeding opening, an electric motor, a heating chamber, a mixing chamber, an inner-layer activated carbon filter screen and a heating pipe. A filtering chamber is fixedly connected to the outer wall of one side of the machine body shell, an outer-layer mounting seat is fixedly connected to the outer wall of the other side of the filtering chamber, an outer-layer mounting groove is formed in the upper surface of the outer-layer mounting seat, and an outer-layer activated carbon filtering net is fixedly connected to the upper surface of the outer-layer mounting groove; the upper surface of the outer activated carbon filter screen is fixedly connected with a second handle; according to the invention, the portable and detachable activated carbon filter assembly is designed, and the activated carbon filter screen is matched with a multi-structure design, so that the waste gas of the coating machine is efficiently treated, and the waste gas treatment efficiency is effectively improved; and secondly, a high-temperature treatment assembly is designed, and a heating pipe is matched with a motor to realize omnibearing heating of a heating chamber, so that harmful substances in the waste gas are effectively converted into more stable or harmless compounds through pyrolytic reaction.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas recovery and reuse, and in particular to a waste gas recovery and reuse device for a coating machine. Background Art

[0002] A coating machine is a device that performs coating treatment on the surface of various materials. The working principle of a coating machine is to evenly coat specific materials on the surface of an object through physical and chemical methods to form a coating with specific properties. The working principle of a coating machine is based on the physical and chemical properties of the material. The coating is applied to the surface of the object by spraying, rolling, brushing, etc. to form a coating with anti-corrosion, wear-resistant, anti-corrosion, heat preservation, heat insulation, fireproof, conductive and other properties. The coating can prevent the surface of the object from corrosion and damage and extend its service life. The coating can improve the appearance of the object and increase its aesthetics. The coating can give the object specific functions. Such as heat preservation, thermal insulation, fire prevention, conductivity, etc., and a large amount of waste gas will be generated during the operation of the coating machine. The waste gas of the coating machine mainly comes from the organic solvents, resins, additives and other components formed by the volatilization of the coating agent during the coating and drying process. These waste gases contain a large amount of volatile organic compounds (VOCs), including benzene, toluene, xylene and other aromatic hydrocarbons, ethyl acetate, butyl acetate and other esters, acetone, butanone and other ketones, as well as alcohols, ethers, etc. Due to the large-scale use and volatilization of organic solvents in the coating process, the concentration of organic matter in the waste gas is relatively high, and it has a certain viscosity, which is easy to adhere and accumulate in the processing equipment, increasing the difficulty of equipment maintenance.

[0003] However, the traditional coating machine waste gas recovery and reuse device cannot meet people's needs, and it has the following defects: First, it is not designed with a portable and detachable activated carbon filter component, and the waste gas generated by the coating machine cannot be effectively treated, which reduces the waste gas treatment efficiency, and the waste gas treatment device has a relatively complex structure, difficult operation, high maintenance cost, and is not conducive to daily disassembly and installation. The complex device structure consumes more energy, which greatly increases the startup cost of the device; second, it is not designed with a high-temperature treatment component, and it is impossible to achieve all-round heating of the heating chamber and form a high-temperature environment. It is impossible to convert harmful substances in the waste gas into more stable or harmless compounds through pyrolysis reactions. Other treatment methods require the addition of additional chemical agents. The treatment process is relatively complicated, which increases the consumption of time and cost, and the reaction component occupies a relatively large space, which increases the space occupancy; third, there is no mixing and stirring component designed, and the gas compounds after the reaction cannot be treated, and the gas cannot be effectively mixed into a usable liquid, which increases the impact of the gas compounds on the air, and it is impossible to achieve resource recycling, which reduces the treatment efficiency of the device. Summary of the invention

[0004] The purpose of the present invention is to provide a waste gas recovery and reuse device for a coating machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a waste gas recovery and reuse device for a coating machine, comprising a body shell, a filter chamber is fixedly connected to an outer wall of one side of the body shell, a preliminary filter screen is fixedly connected to an outer layer mounting seat is fixedly connected to an outer wall of the other side of the filter chamber, an outer layer mounting seat is provided on the upper surface of the outer layer mounting seat, an outer layer activated carbon filter screen is fixedly connected to the upper surface of the outer layer mounting groove, and the outer layer activated carbon filter screen is sleeved on the upper surface of the body shell, a second handle is fixedly connected to the upper surface of the outer layer activated carbon filter screen, a filter delivery pipe is sleeved on an outer wall of one side of the filter chamber, an electronic valve is fixedly connected to an outer wall of one side of the heating delivery pipe, a heating chamber is fixedly sleeved on an output end of the filter delivery pipe, and the heating chamber is fixedly connected to an outer wall of one side of the body shell, a heating delivery pipe is sleeved on the upper surface of the heating chamber, a mixing chamber is sleeved on the output end of the heating delivery pipe, and the mixing chamber is fixedly connected to an outer wall of one side of the body shell.

[0006] As a further technical solution of the present invention, a first motor is fixedly connected to an outer wall of one side of the heating chamber, a heater is fixedly connected to the upper surface of the first motor, a heating tube is fixedly connected to an outer wall of one side of the heater, a hollow shell is fixedly connected to an outer wall of one side of the heating tube, and the hollow shell is fixedly connected to an outer wall of one side of the heater.

[0007] As a further technical solution of the present invention, a second motor is fixedly connected to an outer wall of one side of the mixing chamber, an output end of the second motor is fixedly connected to an upper roller, and the upper roller is sleeved on an outer wall of one side of the mixing chamber, an upper agitator is fixedly connected to an outer wall of one side of the upper roller, a stratification plate is provided on the lower surface of the upper roller, and the stratification plate is fixedly connected to an outer wall of one side of the mixing chamber.

[0008] As a further technical solution of the present invention, an inner layer mounting seat is fixedly connected to the outer wall of one side of the filter chamber, an inner layer mounting groove is opened on the upper surface of the inner layer mounting seat, an inner layer activated carbon filter is fixedly connected to the upper surface of the inner layer mounting groove, and the inner layer activated carbon filter is sleeved on the upper surface of the body shell, and a first handle is fixedly connected to the upper surface of the inner layer activated carbon filter.

[0009] As a further technical solution of the present invention, a third motor is fixedly connected to an outer wall of one side of the mixing chamber, and the third motor is arranged on the lower surface of the layering plate, the output end of the third motor is fixedly connected to a lower roller, and the lower roller is sleeved on an outer wall of one side of the mixing chamber, and a lower agitator is fixedly connected to an outer wall of one side of the lower roller.

[0010] As a further technical solution of the present invention, an exhaust gas conveying pipe is fixedly connected to the upper surface of the body shell, one end of the exhaust gas conveying pipe is fixedly connected to a power pipe, one end of the power pipe is fixedly connected to a switching pipe, and the other end of the switching pipe is fixedly connected to the coating machine body.

[0011] As a further technical solution of the present invention, an electric motor is arranged on one side outer wall of the power tube, a fan is fixedly connected to the output end of the electric motor, a partition is fixedly connected to one side outer wall of the electric motor, and the partition is fixedly connected to one side outer wall of the power tube.

[0012] As a further technical solution of the present invention, a filter hole is opened on one side outer wall of the partition, and a protective shell is fixedly connected to one side outer wall of the electric motor.

[0013] As a further technical solution of the present invention, a drain pipe is provided on the lower surface of the housing, and the drain pipe is provided on the lower surface of the mixing chamber.

[0014] As a further technical solution of the present invention, a feeding pipe is sleeved on the upper surface of the mixing chamber, and the feeding pipe is sleeved on one side outer wall of the machine body shell, and a feeding port is fixedly connected to the upper surface of the feeding pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is designed with a portable and detachable activated carbon filter assembly, adopts an activated carbon filter screen that is easy to disassemble and install with a multiple structural design, and utilizes the highly developed pore structure and huge specific surface area of ​​activated carbon to adsorb organic matter in the exhaust gas. When the exhaust gas passes through the activated carbon adsorption bed, the organic components therein are adsorbed in the micropores of the activated carbon, and the exhaust gas of the coating machine is efficiently treated, effectively improving the exhaust gas treatment efficiency, and the structural design is simple, the operation is convenient, the maintenance cost is low, and the activated carbon filter screen is easy to disassemble, and after disassembly, it can be heated to desorb the adsorbed organic matter, which can be reused, thereby improving the recycling rate of resources; secondly, the present invention is designed with a high temperature treatment group The heating tube is matched with the motor to realize all-round heating of the heating chamber, which can quickly form a high-temperature environment and effectively convert harmful substances in the exhaust gas into more stable or harmless compounds through pyrolysis reaction. High-temperature treatment does not require the addition of any chemical agents. The treatment process is simple and fast, saving time and cost. The required equipment is small, which reduces the site occupancy. Third, a mixing and stirring component is designed, which uses an agitator and a neutralizer to neutralize the gas after high-temperature treatment, effectively treats the gas to make it mixed into a usable liquid, reduces the impact of the gas on the air, realizes the reuse of resources, and reasonably treats the gas, which improves the treatment efficiency of the device and reduces the investment of additional costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a front view structural schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the three-dimensional cutaway structure of the present invention;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the housing of the present invention;

[0021] Figure 6 It is a schematic diagram of the three-dimensional cross-section structure of the housing of the present invention;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the activated carbon filter screen of the present invention.

[0023] In the figure: 1. Coating machine body; 2. Transfer tube; 3. Power tube; 4. Exhaust gas delivery tube; 5. Feeding port; 6. Machine shell; 7. Drain pipe; 8. Fan; 9. Baffle; 10. Filter hole; 11. Electric motor; 12. Protective shell; 13. First handle; 14. Second handle; 15. Preliminary filter; 16. Feeding tube; 17. Filter chamber; 18. Filter delivery tube; 19. Heating chamber; 20. Electronic valve; 21. Mixing chamber; 22. Heating conveying pipe; 23. Outer activated carbon filter; 24. Inner activated carbon filter; 25. Outer mounting seat; 26. Outer mounting groove; 27. Inner mounting groove; 28. Inner mounting seat; 29. ​​Heater; 30. Heating pipe; 31. Hollow shell; 32. First motor; 33. Second motor; 34. Upper agitator; 35. Upper drum; 36. Layering plate; 37. Third motor; 38. Lower drum; 39. Lower agitator. DETAILED DESCRIPTION

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

[0025] Please see attached Figure 1 -Attached Figure 7, an embodiment of the present invention: a waste gas recovery and reuse device for a coating machine, comprising a body shell 6, a filter chamber 17 is fixedly connected to an outer wall of one side of the body shell 6, a preliminary filter screen 15 is fixedly connected to an outer wall of one side of the filter chamber 17, an outer layer mounting seat 25 is fixedly connected to an outer wall of the other side of the filter chamber 17, an outer layer mounting groove 26 is provided on the upper surface of the outer layer mounting seat 25, an outer layer activated carbon filter screen 23 is fixedly connected to the upper surface of the outer layer mounting groove 26, and the outer layer activated carbon filter screen 23 is sleeved on the upper surface of the body shell 6, a second handle 14 is fixedly connected to the upper surface of the outer layer activated carbon filter screen 23, and a filter chamber 17 is fixedly connected to an outer wall of one side of the filter chamber 17. A filter delivery pipe 18 is sleeved, an electronic valve 20 is fixedly connected to one side outer wall of the heating delivery pipe 22, a heating chamber 19 is fixedly sleeved on the output end of the filter delivery pipe 18, and the heating chamber 19 is fixedly connected to one side outer wall of the machine shell 6, a heating delivery pipe 22 is sleeved on the upper surface of the heating chamber 19, and a mixing chamber 21 is sleeved on the output end of the heating delivery pipe 22, and the mixing chamber 21 is fixedly connected to one side outer wall of the machine shell 6; a first motor 32 is fixedly connected to one side outer wall of the heating chamber 19, a heater 29 is fixedly connected to the upper surface of the first motor 32, a heating pipe 30 is fixedly connected to one side outer wall of the heater 29, and one side outer wall of the heating pipe 30 A hollow shell 31 is fixedly connected to the upper part, and the hollow shell 31 is fixedly connected to the outer wall of one side of the heater 29. The hollow shell 31 is used to protect the heating tube 30 and quickly heat the heating chamber 19 through the hollow part; a second motor 33 is fixedly connected to the outer wall of one side of the mixing chamber 21, and the output end of the second motor 33 is fixedly connected to the upper roller 35, and the upper roller 35 is sleeved on the outer wall of one side of the mixing chamber 21, and an upper agitator 34 is fixedly connected to the outer wall of one side of the upper roller 35. A layering plate 36 is provided on the lower surface of the upper roller 35, and the layering plate 36 is fixedly connected to the outer wall of one side of the mixing chamber 21. The layering plate 36 is used to separate the mixing chamber 21, so that the liquid can be fully mixed in the upper space before it can pass through the layering plate 36 and fall into the lower space; an inner layer mounting seat 28 is fixedly connected to the outer wall of one side of the filter chamber 17, and an inner layer mounting groove 27 is provided on the upper surface of the inner layer mounting seat 28, and an inner layer activated carbon filter 24 is fixedly connected to the upper surface of the inner layer mounting groove 27, and the inner layer activated carbon filter 24 is sleeved on the upper surface of the body shell 6, and the upper surface of the inner layer activated carbon filter 24 is fixedly connected to the first handle 13, and the inner layer mounting seat 28 cooperates with the inner layer mounting groove 27 to realize the installation of the inner layer activated carbon filter 24, and the first handle 13 is used to realize the rapid installation or removal of the inner layer activated carbon filter 24;A third motor 37 is fixedly connected to an outer wall of one side of the mixing chamber 21, and the third motor 37 is arranged on the lower surface of the layering plate 36. The output end of the third motor 37 is fixedly connected to a lower roller 38, and the lower roller 38 is sleeved on an outer wall of one side of the mixing chamber 21. A lower agitator 39 is fixedly connected to an outer wall of one side of the lower roller 38. The lower agitator 39 is used to stir the liquid more fully so that the liquid is fully mixed; an exhaust gas conveying pipe 4 is fixedly connected to the upper surface of the machine body shell 6, one end of the exhaust gas conveying pipe 4 is fixedly connected to the power pipe 3, one end of the power pipe 3 is fixedly connected to the transfer pipe 2, and the other end of the transfer pipe 2 is fixedly connected to the coating machine body 1, and the exhaust gas conveying pipe 4 is used to transport the exhaust gas generated by the coating machine body 1 to the recovery device; an electric motor 11 is arranged on an outer wall of one side of the power pipe 3, and a fan 8 is fixedly connected to the output end of the electric motor 11. The electric motor 11 A partition 9 is fixedly connected to one side outer wall of the power tube 3, and the partition 9 is fixedly connected to one side outer wall of the power tube 3. The partition 9 is used to install the electric motor 11; a filter hole 10 is opened on one side outer wall of the partition 9, and a protective shell 12 is fixedly connected to one side outer wall of the electric motor 11. The filter hole 10 is used to filter solid matter in the exhaust gas to prevent debris from damaging the recovery device. The protective shell 12 is used to protect the electric motor 11 to avoid damage to it by exhaust gas and increase its service life; a drain pipe 7 is opened on the lower surface of the body shell 6, and the drain pipe 7 is opened on the lower surface of the mixing chamber 21. The drain pipe 7 is used to discharge the fully mixed liquid; a feeding pipe 16 is sleeved on the upper surface of the mixing chamber 21, and the feeding pipe 16 is sleeved on one side outer wall of the body shell 6. The upper surface of the feeding pipe 16 is fixedly connected to a feeding port 5, and the feeding port 5 is used to add an appropriate amount of water and a neutralizer to the mixing chamber 21. ;

[0026] Working principle: When using the present invention, the exhaust gas generated by the coating machine body 1 is first transmitted through the transfer tube 2, and the electric motor 11 in the power tube 3 is started by controlling the control panel. The electric motor 11 controls the fan 8 to start rotating, generating a certain airflow, and the gas in the coating machine body 1 is sucked into the exhaust gas delivery pipe 4, and the solid matter in the exhaust gas is filtered through the filter holes 10 on the partition 9 to prevent the debris from causing damage to the recovery device. The electric motor 11 is installed through the partition 9 and is protected by a protective shell 12 to avoid damage to it by the exhaust gas and increase its service life. The exhaust gas is transported to the filter chamber 17 on the body shell 6 through the exhaust gas delivery pipe 4, and is preliminarily filtered through the preliminary filter screen 15 to remove impurities in the exhaust gas. , the remaining gas is treated through the outer activated carbon filter 23 and the inner activated carbon filter 24. The activated carbon filter adopts a multi-structure design and utilizes the highly developed pore structure and huge specific surface area of ​​activated carbon to adsorb organic matter in the exhaust gas. When the exhaust gas passes through the activated carbon adsorption bed, the organic components therein are adsorbed in the micropores of the activated carbon, and the exhaust gas of the coating machine is efficiently treated, effectively improving the exhaust gas treatment efficiency. The outer activated carbon filter 23 is installed through the outer mounting seat 25 and the outer mounting groove 26, and the inner activated carbon filter 24 is installed through the inner mounting groove 27 and the inner mounting seat 28. When in use, it can be quickly disassembled or installed through the first handle 13 and the second handle 14 on the upper layer. The structural design is simple and easy to operate. The utility model is convenient and has low maintenance cost. The activated carbon filter is easy to disassemble, and after disassembly, it can be heated to desorb the adsorbed organic matter, which can be reused, thereby improving the recycling rate of resources. The filtered gas is transported to the heating chamber 19 through the filter delivery pipe 18. The first motor 32 in the heating chamber 19 drives the heater 29 to rotate. The heater 29 controls the heating tube 30 to start heating, and the temperature is continuously increased until the set temperature is reached, so that the heating chamber 19 is heated in all directions, and a high-temperature environment can be quickly formed, and harmful substances in the exhaust gas can be effectively converted into more stable or harmless compounds through pyrolysis reaction. The high-temperature treatment does not require the addition of any chemical agents, and the treatment process is simple and fast, which saves time and cost consumption, and the required equipment is small, which reduces the occupation of the site. The heating tube 30 is protected by a hollow shell 31, and the reacted gaseous compounds are transported to the mixing chamber 21 through the heating delivery pipe 22. The gaseous compounds are transferred by controlling the electronic valve 20 to avoid the gas from escaping due to incomplete heating. When the gaseous compounds are dispersed into the mixing chamber 21, a water pipe is connected through the feeding port 5 to allow water to enter the mixing chamber 21 through the feeding pipe 16 and mix with the gaseous compounds, and the required neutralizing agent is added through the feeding pipe 16, and the second motor 33 and the third motor 37 are controlled to run through the control panel, and the upper drum 35 and the lower drum 38 are controlled to start rotating, so that the upper agitator 34 and the lower agitator 39 fully mix the liquid, and the mixed liquid is transported to the liquid storage tank through the discharge pipe 7 for subsequent use.The mixing component uses an agitator and a neutralizer to neutralize the gas after high-temperature treatment, effectively treats the gas to make it mixed into a usable liquid, reduces the impact of the gas on the air, realizes the reuse of resources, reasonably treats the gas, improves the processing efficiency of the device, and reduces the investment of additional costs; the layer plate 36 is used to separate the mixing chamber 21, so that the liquid can be fully mixed in the upper space before it can fall into the lower space through the layer plate 36.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A waste gas recovery and recycling device for a coating machine, comprising a machine body shell (6), characterized in that: A filter chamber (17) is fixedly connected to an outer wall of one side of the housing (6), a preliminary filter screen (15) is fixedly connected to an outer wall of one side of the filter chamber (17), an outer layer mounting seat (25) is fixedly connected to an outer wall of the other side of the filter chamber (17), an outer layer mounting groove (26) is provided on the upper surface of the outer layer mounting seat (25), an outer layer activated carbon filter screen (23) is fixedly connected to the upper surface of the outer layer mounting groove (26), and the outer layer activated carbon filter screen (23) is sleeved on the upper surface of the housing (6), and the upper surface of the outer layer activated carbon filter screen (23) is fixedly connected to A second handle (14) is provided, a filter delivery pipe (18) is sleeved on one side outer wall of the filter chamber (17), an electronic valve (20) is fixedly connected to one side outer wall of the heating delivery pipe (22), an output end of the filter delivery pipe (18) is fixedly sleeved with a heating chamber (19), and the heating chamber (19) is fixedly connected to one side outer wall of the machine shell (6), an upper surface of the heating chamber (19) is sleeved with a heating delivery pipe (22), an output end of the heating delivery pipe (22) is sleeved with a mixing chamber (21), and the mixing chamber (21) is fixedly connected to one side outer wall of the machine shell (6).

2. The waste gas recovery and reuse device of a coating machine according to claim 1, characterized in that: A first motor (32) is fixedly connected to an outer wall of one side of the heating chamber (19); a heater (29) is fixedly connected to an upper surface of the first motor (32); a heating tube (30) is fixedly connected to an outer wall of one side of the heater (29); a hollow shell (31) is fixedly connected to an outer wall of one side of the heating tube (30); and the hollow shell (31) is fixedly connected to an outer wall of one side of the heater (29).

3. The waste gas recovery and reuse device of a coating machine according to claim 1, characterized in that: A second motor (33) is fixedly connected to one side outer wall of the mixing chamber (21); an output end of the second motor (33) is fixedly connected to an upper roller (35), and the upper roller (35) is sleeved on one side outer wall of the mixing chamber (21); an upper stirrer (34) is fixedly connected to one side outer wall of the upper roller (35); a stratification plate (36) is provided on the lower surface of the upper roller (35), and the stratification plate (36) is fixedly connected to one side outer wall of the mixing chamber (21).

4. The waste gas recovery and reuse device of a coating machine according to claim 1, characterized in that: An inner layer mounting seat (28) is fixedly connected to an outer wall of one side of the filter chamber (17); an inner layer mounting groove (27) is provided on the upper surface of the inner layer mounting seat (28); an inner layer activated carbon filter (24) is fixedly connected to the upper surface of the inner layer mounting groove (27); the inner layer activated carbon filter (24) is sleeved on the upper surface of the machine body shell (6); and a first handle (13) is fixedly connected to the upper surface of the inner layer activated carbon filter (24).

5. The waste gas recovery and reuse device of a coating machine according to claim 3, characterized in that: A third motor (37) is fixedly connected to one side outer wall of the mixing chamber (21), and the third motor (37) is arranged on the lower surface of the layering plate (36). The output end of the third motor (37) is fixedly connected to a lower roller (38), and the lower roller (38) is sleeved on one side outer wall of the mixing chamber (21). A lower stirrer (39) is fixedly connected to one side outer wall of the lower roller (38).

6. The waste gas recovery and reuse device of a coating machine according to claim 1, characterized in that: The upper surface of the machine body shell (6) is fixedly connected to an exhaust gas conveying pipe (4), one end of the exhaust gas conveying pipe (4) is fixedly connected to a power pipe (3), one end of the power pipe (3) is fixedly connected to a transfer pipe (2), and the other end of the transfer pipe (2) is fixedly connected to a coating machine body (1).

7. The waste gas recovery and reuse device of a coating machine according to claim 6, characterized in that: An electric motor (11) is provided on one side outer wall of the power tube (3); the output end of the electric motor (11) is fixedly connected to a fan (8); a partition (9) is fixedly connected to one side outer wall of the electric motor (11); and the partition (9) is fixedly connected to one side outer wall of the power tube (3).

8. The waste gas recovery and reuse device of a coating machine according to claim 7, characterized in that: A filter hole (10) is provided on one side outer wall of the partition (9), and a protective shell (12) is fixedly connected to one side outer wall of the electric motor (11).

9. The waste gas recovery and reuse device of a coating machine according to claim 6, characterized in that: A liquid discharge pipe (7) is provided on the lower surface of the machine body shell (6), and the liquid discharge pipe (7) is provided on the lower surface of the mixing chamber (21).

10. The waste gas recovery and reuse device of a coating machine according to claim 1, characterized in that: The upper surface of the mixing chamber (21) is sleeved with a feeding pipe (16), and the feeding pipe (16) is sleeved on one side outer wall of the machine body shell (6), and the upper surface of the feeding pipe (16) is fixedly connected with a feeding port (5).

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