Organic coating application apparatus

Abstract

The application provides an organic coating coating device, comprising a preparation device, a coating device and a waste gas treatment device, the preparation device is connected with the coating device, the preparation device is used for pretreating a workpiece and a coating material, the coating device is used for coating the coating material treated by the preparation device on the surface of the workpiece; the waste gas treatment device comprises a first gas conveying assembly and a treatment assembly, the first gas conveying assembly is connected between the treatment assembly and the coating device, the first gas conveying assembly is used for conveying waste gas generated in the coating device to the treatment assembly for combustion treatment; wherein, the waste gas treatment device further comprises a second gas conveying assembly, the second gas conveying assembly is connected between the preparation device and the coating device, and the second gas conveying assembly is used for conveying waste gas generated in the preparation device into the coating device. The organic coating coating device provided by the application has the advantages of high waste gas treatment efficiency.

Description

Technical Field

[0001] This application belongs to the field of waste gas treatment technology, and more specifically, relates to an organic coating application device. Background Technology

[0002] Polarizing films are products composed of multiple layers of organic optical materials. During the processing of polarizing films, the organic optical material film layer on the surface of the polarizing film is prone to volatilization, generating volatile organic compounds (VOCs). In order to achieve harmless treatment, the organic compounds volatilized during the production of polarizing films need to be collected and oxidized and decomposed at high temperature through a regenerative thermal oxidizer (RTO).

[0003] However, organic coating equipment in related technologies suffers from low efficiency in treating organic waste gas. Utility Model Content

[0004] The purpose of this application is to provide an organic coating equipment to solve the technical problem of low processing efficiency in existing organic coating equipment.

[0005] To achieve the above objectives, embodiments of this application provide an organic coating application apparatus.

[0006] The organic coating equipment provided in this application includes a material preparation device and a coating device. The material preparation device is connected to the coating device and is used to transport the workpiece and coating material to the coating device. The coating device is used to apply the coating material to the surface of the workpiece. An exhaust gas treatment device is also included, comprising a first gas supply component and a treatment component. The first gas supply component is connected between the treatment component and the coating device and is used to supply the exhaust gas generated by the coating device to the treatment component for combustion treatment. Furthermore, the exhaust gas treatment device includes a second gas supply component connected between the material preparation device and the coating device and is used to supply the exhaust gas generated by the material preparation device into the coating device.

[0007] The beneficial effects of the organic coating equipment provided in this application embodiment are as follows: Compared with the prior art, the second gas conveying component in the organic coating equipment provided in this application embodiment conveys the low-concentration organic volatile gas, i.e., waste gas, generated in the material preparation device to the coating device. After the low-concentration waste gas passes through the coating process in the coating device, the concentration of organic volatile gas in it increases. The first gas conveying component conveys the high-concentration waste gas in the coating device to the processing component for combustion treatment, thereby increasing the concentration of organic volatile gas entering the processing component and improving the combustion efficiency of the waste gas during combustion treatment in the processing component. This gives the organic coating equipment provided in this application embodiment the advantage of high waste gas treatment efficiency.

[0008] Optionally, the first gas conveying component is connected to the second gas conveying component so that when the coating device is shut down, the waste gas generated in the material preparation device is conveyed to the processing component for combustion treatment.

[0009] Optionally, the coating apparatus includes an air supply component, a spraying component, and a drying component. The spraying component and the drying component are both connected to the air supply component. The second air delivery component is connected between the material preparation device and the air supply component. The spraying component and the drying component are both connected to the first air delivery component.

[0010] Optionally, the coating apparatus further includes an air intake component, which is connected to the air supply component. The air intake component is used to supply air into the air supply component, and the rate at which the air intake component supplies air to the air supply component is adjustable.

[0011] Optionally, the material preparation device includes a workpiece cleaning device and a coating material processing device. The workpiece cleaning device is used to clean the surface of the workpiece, and the coating material processing device is used to process the coating material. Both the workpiece cleaning device and the coating material processing device are connected to the second gas supply component.

[0012] Optionally, the first air supply assembly includes a first manifold, a first air inlet pipe, a second air inlet pipe, and a first air outlet pipe. The first air inlet pipe is connected between the spraying assembly and the first manifold, the second air inlet pipe is connected between the drying assembly and the first manifold, and the first air outlet pipe is connected between the first manifold and the processing assembly.

[0013] Optionally, the second air supply assembly includes a second manifold, a third air inlet pipe, a fourth air inlet pipe, and a second air outlet pipe. The third air inlet pipe is connected between the workpiece cleaning device and the second manifold, the fourth air inlet pipe is connected between the coating material processing device and the second manifold, and the second air outlet pipe is connected between the second manifold and the air supply assembly.

[0014] Optionally, the second gas supply assembly further includes a fifth gas inlet pipe. A first connecting pipe and a second connecting pipe are sequentially connected between the first manifold and the second manifold. The first connecting pipe is connected to the first manifold, and the second connecting pipe is connected between the first connecting pipe and the second manifold. The third and fourth gas inlet pipes are both connected to one end of the fifth gas inlet pipe, and the other end of the fifth gas inlet pipe is connected between the first connecting pipe and the second connecting pipe.

[0015] The second manifold box is provided with a first valve between it and the second outlet pipe, the first connecting pipe is provided with a second valve between it and the second connecting pipe, and the fifth inlet pipe is connected to the second valve.

[0016] Optionally, the coating apparatus has a stopped state and an operating state;

[0017] In the shutdown state, the first valve is closed, isolating the second manifold from the second outlet pipe, the second valve connects the fifth inlet pipe to the first connecting pipe, and the second valve isolates the fifth inlet pipe from the second connecting pipe;

[0018] In the operating state, the first valve opens, connecting the second manifold to the second outlet pipe, the second valve connects the fifth inlet pipe to the second connecting pipe, and the second valve isolates the fifth inlet pipe from the first connecting pipe.

[0019] Optionally, the first gas supply assembly includes a sixth air inlet pipe, both the first air inlet pipe and the second air inlet pipe are connected to one end of the sixth air inlet pipe, and the other end of the sixth air inlet pipe is connected to the first manifold box;

[0020] A third valve is provided between the sixth air intake pipe and the first manifold box. In the operating state, the third valve is opened to connect the sixth air intake pipe and the first manifold box. In the shutdown state, the third valve is closed to isolate the sixth air intake pipe from the first manifold box. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the coating apparatus of the organic coating equipment provided in the embodiments of this application in the shutdown state;

[0023] Figure 2 This is a schematic diagram of the coating apparatus of the organic coating equipment provided in the embodiments of this application in operation.

[0024] The following are the labeling elements in the figure:

[0025] 100. Organic coating application equipment;

[0026] 10. Material preparation device; 11. Workpiece cleaning device; 12. Coating material processing device; 13. First blower; 14. Second blower;

[0027] 20. Coating device; 21. Spraying assembly; 22. Drying assembly; 23. Air supply assembly; 24. Air intake assembly; 25. Third blower; 26. Fourth blower;

[0028] 30. Waste gas treatment device; 31. First gas delivery assembly; 311. First air inlet pipe; 312. Second air inlet pipe; 313. First manifold box; 313a. First air inlet; 313b. First air outlet; 313c. Third air inlet; 314. First air outlet pipe; 315. Third valve; 316. Sixth air inlet pipe; 32. Second gas delivery assembly; 321. Third air inlet pipe; 322. Fourth air inlet pipe; 323. Second manifold box; 323a. Second air inlet; 323b. Second air outlet; 324. First valve; 325. Second valve; 326. First connecting pipe; 327. Second connecting pipe; 328. Fifth air inlet pipe; 33. Treatment assembly. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] Polarizing films are products composed of multiple layers of organic optical materials. During the processing of polarizing films, the organic optical material film layer on the surface of the polarizing film is prone to volatilization, generating volatile organic compounds (VOCs). In order to achieve harmless treatment, the organic compounds volatilized during the production of polarizing films need to be collected and oxidized and decomposed at high temperature through a regenerative thermal oxidizer (RTO).

[0034] However, organic coating equipment in related technologies suffers from low efficiency in treating organic waste gas.

[0035] This application provides an organic coating equipment that can improve the treatment efficiency of organic waste gas.

[0036] The organic coating equipment provided in this application embodiment is used to coat the surface of a workpiece with an organic coating. In some embodiments, the organic coating equipment provided in this application embodiment can be used to process the film layers of organic materials such as release film (RF), pressure-sensitive adhesive layer (PSA), triacetate cellulose film (TAC), polyvinyl alcohol film (PVA), and polyester protective film (PET) in polarizers.

[0037] Please refer to the following: Figure 1 and Figure 2 The organic coating equipment provided in the embodiments of this application will now be described.

[0038] The organic coating equipment 100 provided in this application embodiment includes a material preparation device 10, a coating device 20, and an exhaust gas treatment device 30.

[0039] In the process of applying an organic coating to a workpiece, the material preparation device 10 is located upstream of the coating device 20. The material preparation device 10 is used to pre-treat the workpiece and the coating material, and the coating device 20 is used to apply the coating material obtained by the material preparation device 10 to the surface of the workpiece.

[0040] In some embodiments, the material preparation device 10 is used to pre-treat the workpiece, including at least one operation such as cleaning the surface of the workpiece and modifying the surface of the workpiece. During the pre-treatment of the workpiece, the material in the workpiece volatilizes to generate low-concentration waste gas containing volatile organic compounds.

[0041] In some other embodiments, the preparation device 10 is used to prepare organic coating materials by mixing various raw materials of the organic coating materials. In some embodiments, the raw materials of the mixed organic coating materials also need to be stirred and heated. When the preparation device 10 prepares the organic coating materials, the volatile organic compounds in the organic coating materials volatilize to generate low-concentration waste gas.

[0042] In some embodiments, the coating apparatus 20 is used to coat an organic coating material onto the surface of a workpiece. After the organic coating material is coated onto the surface of the workpiece, the volatile organic compounds in the organic coating material volatilize and generate high-concentration waste gas due to the increased contact area between the organic coating material and the air.

[0043] In other embodiments, the coating apparatus 20 is used to dry the organic coating material applied to the surface of the workpiece, during which the volatile organic compounds in the organic coating material generate high-concentration exhaust gas.

[0044] The exhaust gas treatment device 30 includes a first gas conveying component 31 and a treatment component 33. The first gas conveying component 31 is connected between the treatment component 33 and the coating device 20. The first gas conveying component 31 is used to convey the exhaust gas generated by the coating device 20 to the treatment component 33 for combustion treatment.

[0045] like Figure 1 and Figure 2 As shown, one end of the first gas conveying component 31 is connected to the coating device 20, and the other end of the first gas conveying component 31 is connected to the processing component 33, so as to convey the high-concentration waste gas generated in the coating device 20 to the processing component 33.

[0046] In some embodiments, the treatment component 33 is a regenerative thermal oxidizer (RTO). The treatment component 33 decomposes the volatile organic compounds (VOCs) in the waste gas delivered to the treatment component 33 by the first gas delivery component 31 into carbon dioxide and water through high-temperature oxidation (similar to combustion), thereby achieving the purification treatment of the waste gas.

[0047] The exhaust gas treatment device 30 also includes a second gas conveying component 32, which is connected between the material preparation device 10 and the coating device 20. The second gas conveying component 32 is used to convey the exhaust gas generated by the material preparation device 10 to the coating device 20.

[0048] like Figure 1 and Figure 2 As shown, one end of the second gas conveying component 32 is connected to the material preparation device 10, and the other end of the second gas conveying component 32 is connected to the coating device 20, so that the low-concentration waste gas generated in the material preparation device 10 is conveyed to the coating device 20 through the second gas conveying component 32, so that the low-concentration waste gas generated in the material preparation device 10 is mixed with volatile organic compounds in the coating device 20 to form high-concentration waste gas.

[0049] The RTO equipment decomposes VOCs in the exhaust gas through high-temperature oxidation. This process requires maintaining a high temperature in the combustion chamber (usually 760℃-850℃). The low-concentration exhaust gas generated in the preparation device 10 has a low calorific value and cannot provide enough heat to maintain the high temperature in the combustion chamber of the treatment component 33. Therefore, it is necessary to add fuel such as natural gas to the treatment component 33 to provide additional heat.

[0050] In the organic coating equipment 100 provided in this application embodiment, the low-concentration waste gas generated in the material preparation device 10 is transported to the coating device 20 through the second gas conveying component 32 to form high-concentration waste gas, thereby increasing the concentration of volatile organic compounds in the waste gas in the treatment component 33 and improving the combustion efficiency of the treatment component 33 when treating the waste gas.

[0051] The beneficial effects of the organic coating equipment 100 provided in this application embodiment are as follows: Compared with the prior art, the second gas conveying component 32 in the organic coating equipment 100 provided in this application embodiment conveys the low-concentration organic volatile gas, i.e., waste gas, generated in the material preparation device 10 to the coating device 20. After the low-concentration waste gas passes through the coating process in the coating device 20, the concentration of organic volatile gas therein increases. The first gas conveying component 31 conveys the high-concentration waste gas in the coating device 20 to the processing component 33 for combustion treatment, thereby increasing the concentration of organic volatile gas entering the processing component 33 and improving the combustion efficiency of the waste gas during combustion treatment in the processing component 33. This gives the organic coating equipment 100 provided in this application embodiment the advantage of high waste gas treatment efficiency.

[0052] In some embodiments provided in this application, the first gas delivery component 31 is connected to the second gas delivery component 32 so as to deliver the waste gas generated in the material preparation device 10 to the processing component 33 for combustion treatment when the coating device 20 is shut down.

[0053] like Figure 1 and Figure 2 As shown, the first gas conveying component 31 and the second gas conveying component 32 can be connected so that part of the first gas conveying component 31 and part of the second gas conveying component 32 are connected between the material preparation device 10 and the processing component 33, so that the waste gas generated in the material preparation device 10 is directly conveyed to the processing component 33.

[0054] With this configuration, when the coating device 20 is shut down for maintenance or other reasons, the low-concentration waste gas generated by the material preparation device 10 can be directly transported to the processing component 33 for combustion treatment through the first gas supply component 31 and the second gas supply component 32. Thus, on the one hand, the waste gas concentration in the material preparation equipment is prevented from exceeding the safe value when the coating device 20 is shut down, and on the other hand, the waste gas in the material preparation equipment is prevented from being transported into the coating device 20 when the coating device 20 is shut down.

[0055] In some embodiments provided in this application, such as Figure 1 and Figure 2 As shown, the coating device 20 includes an air supply component 23, a spraying component 21, and a drying component 22. Both the spraying component 21 and the drying component 22 are connected to the air supply component 23. The second air supply component 32 is connected between the material preparation device 10 and the air supply component 23. Both the spraying component 21 and the drying component 22 are connected to the first air supply component 31.

[0056] In some embodiments (not shown in the figures), a first conveying device is provided between the spraying assembly 21 and the material preparation device. The cleaning workpiece and the organic coating material prepared in the material preparation device are conveyed to the spraying assembly 21 by the conveying device. The spraying assembly 21 is used to uniformly coat the organic coating material on the surface of the workpiece.

[0057] In some embodiments (not shown in the figures), the spraying assembly 21 includes a frame, a coating component, and a drive component. The workpiece is disposed on the frame, and the drive component is disposed on the frame and communicates with the coating component. The coating component sprays organic coating material onto the surface of the workpiece using airflow. The drive component drives the coating component to move along the surface of the workpiece, thereby uniformly spraying the organic coating material onto the surface of the workpiece. When the coating component sprays the organic coating material onto the surface of the workpiece, the contact area between the organic coating material and the air increases, and a large amount of volatile organic compounds in the organic coating material evaporate into the surrounding air.

[0058] In some embodiments (not shown in the figure), the air supply component 23 is a high-pressure air pump. The air supply component 23 is connected between the first air supply component 31 and the coating component, so as to pump the low-concentration waste gas generated in the material preparation device 10 to the coating component of the spraying component 21 through the air supply component 23, and use the low-concentration waste gas to spray the organic coating material in the coating component onto the surface of the workpiece.

[0059] In some embodiments (not shown in the figures), a second conveying device is provided between the drying assembly 22 and the spraying assembly 21 to convey the workpiece coated in the spraying assembly 21 to the drying assembly 22. In some embodiments (not shown in the figures), the drying assembly 22 includes a hot air blower for conveying a dry hot airflow to the surface of the workpiece to dry the organic coating material on the surface of the workpiece to form an organic coating.

[0060] When the drying component 22 dries the organic coating material on the surface of the workpiece, a large amount of volatile organic compounds in the organic coating material volatilize. The air supply component 23 is connected between the hot air blower and the first air supply component 31. The air supply component 23 pumps the low-concentration waste gas generated in the material preparation device 10 to the hot air blower. The gas is heated by the hot air blower and sprayed onto the surface of the workpiece. The volatile organic compounds in the organic coating material on the surface of the workpiece volatilize into the airflow generated by the hot air blower to form high-concentration waste gas.

[0061] In some embodiments provided in this application, the coating apparatus 20 further includes an air intake component 24, which is connected to the air supply component 23. The air intake component 24 is used to supply air into the air supply component 23, and the rate at which the air intake component 24 supplies air to the air supply component 23 is adjustable.

[0062] In some embodiments, the air intake assembly 24 is a high-pressure air pump, such as... Figure 1 and Figure 2 As shown, the air intake component 24 is connected to the coating part of the spraying component 21, and the air intake component 24 is connected to the hot air blower of the drying component 22. When the material preparation device 10 stops or the airflow delivered to the coating device 20 by the first air supply component 31 is insufficient, the air intake component 24 pumps clean air to the coating part of the spraying component 21 and the hot air blower of the drying component 22.

[0063] With this configuration, clean air is delivered to the spraying assembly 21 for spraying operations by setting up the air intake assembly 24 and the air supply assembly 23. When the material preparation device 10 stops or the airflow delivered to the coating device 20 by the first air supply assembly 31 is insufficient, the required airflow for the spraying assembly 21 and the drying assembly 22 is supplemented.

[0064] In some embodiments provided in this application, the material preparation device 10 includes a workpiece cleaning device 11 and a coating material processing device 12. The workpiece cleaning device 11 is used to clean the surface of the workpiece, and the coating material processing device 12 is used to process the coating material. Both the workpiece cleaning device 11 and the coating material processing device 12 are connected to the second gas supply assembly 32.

[0065] In some embodiments, the workpiece cleaning device 11 includes a wiping member (not shown in the figure), which can abut against the surface of the workpiece and move along the surface of the workpiece to clean the workpiece surface to a state where it can be coated. During the cleaning process of the workpiece surface, volatile organic compounds on the workpiece surface are volatilized into the surrounding air to form low-concentration exhaust gas.

[0066] In some embodiments, the material preparation device 10 includes a first blower 13, which is arranged close to the workpiece cleaning device 11. The first blower 13 is connected to a second air conveying assembly 32, so that the low-concentration exhaust gas around the workpiece cleaning device 11 is conveyed to the coating device 20 through the second air conveying assembly 32 via the first blower 13.

[0067] In some embodiments, the coating material processing apparatus 12 includes a mixer (not shown in the figure) for heating and stirring various raw materials of the organic coating material. The various raw materials of the organic coating material are mixed in the mixer to generate the organic coating material. During the mixing process of the organic coating material, the volatile organic compounds in the raw materials of the organic coating material can be volatilized into the air around the mixer to form low-concentration exhaust gas.

[0068] In some embodiments, the material preparation device 10 includes a second blower 14, which is arranged close to the coating material processing device 12 and is connected to a second gas conveying assembly 32, thereby conveying low-concentration exhaust gas around the coating material processing device 12 to the coating device 20 through the second gas conveying assembly 32.

[0069] In some embodiments provided in this application, the first air supply assembly 31 includes a first manifold 313, a first air inlet pipe 311, a second air inlet pipe 312, and a first air outlet pipe 314. The first air inlet pipe 311 is connected between the spraying assembly 21 and the first manifold 313, the second air inlet pipe 312 is connected between the drying assembly 22 and the first manifold 313, and the first air outlet pipe 314 is connected between the first manifold 313 and the processing assembly.

[0070] In some embodiments, the coating apparatus 20 includes a third blower 25, which is arranged close to the spraying assembly 21 and is connected to the first gas supply assembly 31, thereby conveying the high-concentration exhaust gas around the spraying assembly 21 to the processing assembly 33 through the first gas supply assembly 31.

[0071] In some embodiments, the coating apparatus 20 includes a fourth blower 26, which is arranged close to the drying assembly 22 and is connected to the first gas conveying assembly 31. The high-concentration waste gas around the drying assembly 22 is conveyed to the processing assembly 33 through the first gas conveying assembly 31 by the fourth blower 26.

[0072] like Figure 1 As shown, the first manifold 313 has a first air inlet 313a and a first air outlet 313b. The first air inlet pipe 311 is connected between the third blower 25 and the first air inlet 313a. The second air inlet pipe 312 is connected between the fourth blower 26 and the first air inlet 313a. The first air outlet pipe 314 is connected between the first air outlet 313b and the processing component 33.

[0073] This configuration serves two purposes. First, by storing high-concentration exhaust gas in the first manifold 313, dust and other impurities in the high-concentration exhaust gas are deposited in the first manifold 313, improving the cleanliness of the high-concentration exhaust gas delivered from the first gas delivery assembly 31 to the processing assembly 33. Second, the first air inlet pipe 311 delivers the high-concentration exhaust gas generated in the spraying assembly 21 to the first manifold 313, and the second air inlet pipe 312 delivers the high-concentration exhaust gas generated in the drying assembly 22 to the first manifold 313, thereby balancing the flow rate between the first air inlet pipe 311 and the second air inlet pipe 312 when the high-concentration exhaust gas in the first manifold 313 is delivered to the processing assembly 33.

[0074] In some embodiments provided in this application, the second air supply assembly 32 includes a second manifold 323, a third air inlet pipe 321, a fourth air inlet pipe 322, and a second air outlet pipe. The third air inlet pipe 321 is connected between the workpiece cleaning device 11 and the second manifold 323. The fourth air inlet pipe 322 is connected between the coating material processing device 12 and the second manifold 323. The second air outlet pipe is connected between the second manifold 323 and the air supply assembly 23.

[0075] like Figure 1 and Figure 2 As shown, the second manifold 323 has a second air inlet 323a and a second air outlet 323b. A third air inlet pipe 321 is connected between the first blower 13 and the second air inlet 323a. A fourth air inlet pipe 322 is connected between the second blower 14 and the second air inlet 323a. A second air outlet pipe is connected between the second air outlet 323b and the air supply assembly 23.

[0076] This configuration serves two purposes: firstly, by storing low-concentration exhaust gas in the second manifold 323, dust and other impurities in the low-concentration exhaust gas are deposited in the second manifold 323, improving the cleanliness of the low-concentration exhaust gas delivered to the coating device 20 by the second gas supply assembly 32; secondly, by generating negative pressure through the second outlet 323b in the second manifold 323 by the gas supply assembly 23, the low-concentration exhaust gas in the second manifold 323 is pumped to the coating device 20, balancing the flow rate between the third inlet pipe 321 and the fourth inlet pipe 322.

[0077] In some embodiments provided in this application, the second gas supply assembly 32 further includes a fifth gas inlet pipe 328. A first connecting pipe 326 and a second connecting pipe 327 are sequentially connected between the first manifold 313 and the second manifold 323. The first connecting pipe 326 is connected to the first manifold 313, and the second connecting pipe 327 is connected between the first connecting pipe 326 and the second manifold 323. The third gas inlet pipe 321 and the fourth gas inlet pipe 322 are both connected to one end of the fifth gas inlet pipe 328, and the other end of the fifth gas inlet pipe 328 is connected between the first connecting pipe 326 and the second connecting pipe 327.

[0078] like Figure 1As shown, the first manifold 313 also includes a third air inlet 313c. One end of the first connecting pipe 326 is connected to the third air inlet 313c, and the other end of the first connecting pipe 326 is connected to one end of the second connecting pipe 327. The other end of the second connecting pipe 327 is connected to the first air inlet 313a. The connection between the first connecting pipe 326 and the second connecting pipe 327 is also connected to one end of the fifth air inlet pipe 328. The other end of the fifth air inlet pipe 328 is also connected to both the third air inlet pipe 321 and the fourth air inlet pipe 322.

[0079] A first valve 324 is provided between the second manifold 323 and the second outlet pipe, a second valve 325 is provided between the first connecting pipe 326 and the second connecting pipe 327, and the fifth inlet pipe is connected to the second valve 325.

[0080] In some embodiments, the first valve 324 is an electrically controlled two-way valve.

[0081] like Figure 1 and Figure 2 As shown, the first valve 324 is connected between the second air outlet 323b and the second air outlet pipe of the second manifold 323, and controls the connection and disconnection between the second manifold 323 and the second air outlet pipe through the first valve 324.

[0082] In some embodiments, the second valve 325 is an electrically controlled two-position three-way valve.

[0083] The second valve 325 has a first port, a second port and a third port. The first port is connected to the first connecting pipe 326, the second port is connected to the second connecting pipe 327, and the third port is connected to the fifth air intake pipe 328. The second valve 325 can control the connection between the first port and the third port, or control the connection between the second port and the third port.

[0084] The first gas delivery assembly 31 and the second gas delivery assembly 32 are connected by the first connecting pipe 326, the second connecting pipe 327 and the fifth air inlet pipe 328. The low-concentration waste gas in the material preparation device 10 can flow to the second manifold box 323 through the fifth air inlet pipe 328 and the second connecting pipe 327. The low-concentration waste gas in the material preparation device 10 can also flow directly to the first manifold box 313 through the fifth air inlet pipe 328 and the first connecting pipe 326.

[0085] In some embodiments provided in this application, the coating apparatus 20 has a stopped state and an operating state;

[0086] In the shutdown state, such as Figure 1 As shown, the first valve 324 is closed, isolating the second manifold 323 from the second outlet pipe, and the second valve 325 connects the fifth inlet pipe 328 to the first connecting pipe 326, and the second valve 325 isolates the fifth inlet pipe 328 from the second connecting pipe 327.

[0087] In running state, such as Figure 2 As shown, the first valve 324 opens, connecting the second manifold 323 to the second outlet pipe, and the second valve 325 connects the fifth inlet pipe 328 to the second connecting pipe 327, while the second valve 325 isolates the fifth inlet pipe 328 from the first connecting pipe 326.

[0088] With this configuration, when the coating device 20 is shut down for maintenance or other reasons, the low-concentration waste gas generated by the material preparation device 10 can be directly transported to the processing component 33 for combustion treatment through the first connecting pipe 326. Thus, on the one hand, the waste gas concentration in the material preparation equipment is prevented from exceeding the safe value when the coating device 20 is shut down, and on the other hand, the waste gas in the material preparation equipment is prevented from still being transported into the coating device 20 when the coating device 20 is shut down.

[0089] In some embodiments provided in this application, the first gas supply assembly 31 includes a sixth gas inlet pipe 316, the first gas inlet pipe 311 and the second gas inlet pipe 312 are both connected to one end of the sixth gas inlet pipe 316, and the other end of the sixth gas inlet pipe 316 is connected to the first manifold box 313.

[0090] A third valve 315 is provided between the sixth air intake pipe 316 and the first manifold box 313. In the operating state, the third valve 315 is opened to connect the sixth air intake pipe 316 and the first manifold box 313. In the shutdown state, the third valve 315 is closed to isolate the sixth air intake pipe 316 from the first manifold box 313.

[0091] In some embodiments, the third valve 315 is an electrically controlled two-way valve.

[0092] like Figure 1 and Figure 2 As shown, the third valve 315 is connected between the first manifold 313 and the sixth air intake pipe 316, and controls the opening and closing of the connection between the first manifold 313 and the sixth air intake pipe 316.

[0093] With this configuration, when the coating device 20 is shut down, the low-concentration exhaust gas in the material preparation device 10 is transported to the processing component 33 through the first manifold 313. Closing the third valve 315 can prevent the low-concentration exhaust gas in the first manifold 313 from escaping into the coating device 20.

[0094] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An organic coating application device, characterized in that, include: The equipment includes a material preparation device and a coating device, wherein the material preparation device is connected to the coating device, the material preparation device is used to pre-treat the workpiece and the coating material, and the coating device is used to apply the coating material obtained by the material preparation device to the surface of the workpiece. An exhaust gas treatment device includes a first gas conveying component and a treatment component. The first gas conveying component is connected between the treatment component and the coating device. The first gas conveying component is used to convey the exhaust gas generated in the coating device to the treatment component for combustion treatment. The waste gas treatment device further includes a second gas conveying component, which is connected between the material preparation device and the coating device. The second gas conveying component is used to convey the waste gas generated in the material preparation device to the coating device.

2. The organic coating equipment as described in claim 1, characterized in that: The first gas conveying component is connected to the second gas conveying component so that when the coating device is shut down, the waste gas generated in the material preparation device is conveyed to the processing component for combustion treatment.

3. The organic coating equipment as described in claim 2, characterized in that: The coating device includes an air supply component, a spraying component, and a drying component. The spraying component and the drying component are both connected to the air supply component. The second air delivery component is connected between the material preparation device and the air supply component. The spraying component and the drying component are both connected to the first air delivery component.

4. The organic coating equipment as described in claim 3, characterized in that: The coating apparatus further includes an air intake component, which is connected to the air supply component. The air intake component is used to supply air into the air supply component, and the rate at which the air intake component supplies air to the air supply component is adjustable.

5. The organic coating equipment as described in claim 3, characterized in that: The material preparation device includes a workpiece cleaning device and a coating material processing device. The workpiece cleaning device is used to clean the surface of the workpiece, and the coating material processing device is used to process the coating material. Both the workpiece cleaning device and the coating material processing device are connected to the second gas supply assembly.

6. The organic coating equipment as described in claim 5, characterized in that: The first air supply assembly includes a first manifold, a first air inlet pipe, a second air inlet pipe, and a first air outlet pipe. The first air inlet pipe is connected between the spraying assembly and the first manifold, the second air inlet pipe is connected between the drying assembly and the first manifold, and the first air outlet pipe is connected between the first manifold and the processing assembly.

7. The organic coating application equipment as described in claim 6, characterized in that: The second air supply assembly includes a second manifold, a third air inlet pipe, a fourth air inlet pipe, and a second air outlet pipe. The third air inlet pipe is connected between the workpiece cleaning device and the second manifold, the fourth air inlet pipe is connected between the coating material processing device and the second manifold, and the second air outlet pipe is connected between the second manifold and the air supply assembly.

8. The organic coating application equipment as described in claim 7, characterized in that: The second gas delivery assembly further includes a fifth gas inlet pipe. A first connecting pipe and a second connecting pipe are sequentially connected between the first manifold and the second manifold. The first connecting pipe is connected to the first manifold, and the second connecting pipe is connected between the first connecting pipe and the second manifold. The third and fourth gas inlet pipes are both connected to one end of the fifth gas inlet pipe, and the other end of the fifth gas inlet pipe is connected between the first connecting pipe and the second connecting pipe. The second manifold box is provided with a first valve between it and the second outlet pipe, the first connecting pipe is provided with a second valve between it and the second connecting pipe, and the fifth inlet pipe is connected to the second valve.

9. The organic coating equipment as described in claim 8, characterized in that: The coating device has a stopped state and an operating state; In the shutdown state, the first valve is closed, isolating the second manifold from the second outlet pipe, the second valve connects the fifth inlet pipe to the first connecting pipe, and the second valve isolates the fifth inlet pipe from the second connecting pipe; In the operating state, the first valve opens, connecting the second manifold to the second outlet pipe, the second valve connects the fifth inlet pipe to the second connecting pipe, and the second valve isolates the fifth inlet pipe from the first connecting pipe.

10. The organic coating equipment as described in claim 9, characterized in that: The first gas delivery assembly includes a sixth gas inlet pipe. Both the first gas inlet pipe and the second gas inlet pipe are connected to one end of the sixth gas inlet pipe, and the other end of the sixth gas inlet pipe is connected to the first manifold. A third valve is provided between the sixth air intake pipe and the first manifold box. In the operating state, the third valve is opened to connect the sixth air intake pipe and the first manifold box. In the shutdown state, the third valve is closed to isolate the sixth air intake pipe from the first manifold box.

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