Diagnostic film coating drying apparatus

Abstract

The utility model discloses a diagnostic film coating drying device, including conveying device, the top surface one side of conveying device is provided with drying device, the top surface one side of drying device is connected with the suction tube through, the suction tube is fixedly connected with the first air pump on the side surface away from drying device, the side surface fixedly connected with the gas pipe of first air pump away from suction tube, the side surface through -connection of gas pipe away from first air pump is connected with the collection chamber, the bottom surface fixedly connected with the bearing plate of collection chamber, the side surface of bearing plate is fixedly connected with drying device, the back surface middle through -connection of collection chamber is connected with the steam connection pipe, is connected with the steam connection pipe through setting collection chamber, activated carbon fiber plate, engagement block, mounting component, engagement slot, positioning slot and limit groove, like this not only has promoted the maintenance efficiency of activated carbon fiber plate greatly, can also optimize the overall layout of device simultaneously to reduce manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of film coating drying technology, specifically a diagnostic film coating drying device. Background Technology

[0002] The medical diagnostic film coating drying device is one of the core process equipment in the medical film production line. It is used to precisely dry and cure the photosensitive / functional coating of the coated medical diagnostic film, ensuring the adhesion between the coating and the film substrate, coating uniformity, and the final image quality of the film. Its core function is to remove solvents from the coating under controllable parameters such as temperature, humidity, wind speed, and drying time, while avoiding defects such as bubbles, pinholes, cracks, and edge shrinkage. This ensures that the physical and photosensitive properties of the film coating meet the standards required for medical diagnostics. In existing technologies, the evaporation of solvents from the medical film coating during drying generates organic waste gas, which is then processed by a device designed to control the drying process. The negative pressure adsorption device draws the waste gas into the collection chamber, and then treats it through activated carbon fiber plates + condensation recovery or catalytic combustion processes to meet environmental emission standards before discharging. However, in actual use, the waste gas needs to be regenerated frequently, which makes the activated carbon fiber plates prone to a decrease in filtration efficiency after long-term use. At this time, the activated carbon fiber plates need to be replaced. While the drawer-type guide rail connection used in the existing technology can improve the replacement efficiency of activated carbon fiber plates to a certain extent, the drawer-type guide rail connection requires sufficient space to be reserved on the side of the adsorption chamber, which increases the overall footprint of the device, as well as the structural complexity and manufacturing cost of the chamber.

[0003] A diagnostic film coating drying device is proposed to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a diagnostic film coating drying device to solve the problem mentioned in the background art. In actual use, frequent regeneration of waste gas is required, which makes the activated carbon fiber plate prone to a decrease in filtration efficiency after long-term use. At this time, the activated carbon fiber plate needs to be replaced. Although the drawer-type guide rail connection of the prior art can improve the replacement efficiency of activated carbon fiber plate to a certain extent, the drawer-type guide rail connection requires sufficient space to be reserved on the side of the adsorption chamber, which increases the overall footprint of the device, as well as the structural complexity and manufacturing cost of the chamber.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a diagnostic film coating drying device, comprising a conveying device, wherein a drying device is provided on one side of the top surface of the conveying device; A suction pipe is connected through one side of the top surface of the drying device. A first air pump is fixedly connected to the side surface of the suction pipe away from the drying device. A gas delivery pipe is fixedly connected to the side surface of the first air pump away from the suction pipe. A collection chamber is connected through the side surface of the gas delivery pipe away from the first air pump. A support plate is fixedly connected to the bottom surface of the collection chamber. One side surface of the support plate is fixedly connected to the drying device. A steam connection pipe is connected through the middle of the back surface of the collection chamber. A control valve is fixedly installed inside the steam connection pipe. Several activated carbon fiber plates are fixedly installed inside the collection chamber. A locking block is fixedly connected to the middle of the bottom surface of the activated carbon fiber plates. Also includes: The activated carbon fiber board has mounting components symmetrically arranged on both sides near the bottom. The installation components include a connecting plate that is fixedly connected to the activated carbon fiber board; The connecting plate has a connecting sleeve running through its center, and the connecting sleeve has a pressing block running through its center.

[0006] Preferably, a connecting rod is fixedly connected to the middle of the bottom surface of the pressing block, a through plate is connected through the surface of the connecting rod, the through plate is fixedly connected to the connecting sleeve, a compression spring is sleeved and connected to the surface of the connecting rod, the bottom surface of the compression spring is fixedly connected to the through plate, and the top surface of the compression spring is fixedly connected to the pressing block.

[0007] Preferably, a connecting block is fixedly connected to the bottom surface of the connecting rod, and movable grooves are symmetrically opened on both sides of the connecting block, with a limiting ball movably connected inside the movable groove.

[0008] Preferably, the two sides of the connecting sleeve are symmetrically provided with inclined grooves, and the inclined grooves are movably connected to the limiting ball.

[0009] Preferably, a first exhaust pipe is connected through the surface of the collection chamber away from the gas supply pipe, a first connecting pipe is connected through the surface of the first exhaust pipe, a second air pump is fixedly connected to the bottom surface of the first connecting pipe, the bottom surface of the second air pump is fixedly connected to the support plate, a first delivery pipe is fixedly connected to one side surface of the second air pump, and a condensation device is connected through the surface of the first delivery pipe away from the second air pump.

[0010] Preferably, a second connecting pipe is connected through the surface of the condensing device near the top and away from the first conveying pipe, a third air pump is fixedly connected to the surface of the second connecting pipe away from the condensing device, a second conveying pipe is fixedly connected to the surface of the third air pump away from the second connecting pipe, a catalytic combustion device is connected through the surface of the second conveying pipe away from the third air pump, and a second exhaust pipe is connected through the surface of the catalytic combustion device away from the second conveying pipe.

[0011] Preferably, the inside of the collection chamber is provided with symmetrical engaging grooves, which are engaged with engaging blocks. Positioning grooves are provided symmetrically on both sides of the engaging grooves, which are engaged with connecting sleeves. Limiting grooves are provided symmetrically on both sides of the positioning grooves, which are engaged with limiting balls.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This diagnostic film coating drying device, by setting up a collection chamber, activated carbon fiber plate, locking block, mounting components, locking groove, positioning groove and limiting groove, not only greatly improves the maintenance efficiency of activated carbon fiber plate, but also optimizes the overall layout of the device, thereby reducing manufacturing costs. The specific details are as follows: 1. By setting up a collection chamber, activated carbon fiber board, locking block, installation components, locking groove, positioning groove, and limiting groove, when disassembling the activated carbon fiber board, pressing the pressing block causes the connecting rod and connecting block to descend under force. As the connecting block descends, the limiting ball moves into the connecting sleeve due to the movement of the connecting block and the action of the tilting groove. When the connecting block reaches its bottom, the limiting ball enters the connecting sleeve, completely separating the limiting ball from the limiting groove. At this point, the worker can remove and replace the activated carbon fiber plate by pulling it. The diameter of the inclined groove must be smaller than the diameter of the limiting ball to prevent the limiting ball from detaching from the connecting sleeve. When installing the activated carbon fiber plate, align the locking block on the plate with the locking groove inside the collection chamber, and press the locking block with your finger. The limiting ball is now inside the connecting sleeve. Then, by engaging the locking block into the locking groove, the connecting sleeve engages in the positioning groove. The worker can then loosen the locking block to... Pressing the pressure block causes it to rise and reset under the action of the compression spring. As the pressure block rises, it drives the connecting rod and connecting block to rise as well. When the connecting block rises, the movable groove on the connecting block squeezes the limiting ball, causing one side of the limiting ball to be exposed on the outside of the connecting sleeve and engage with the limiting groove. This allows for the initial positioning and installation of the activated carbon fiber board. Then, the sealing cover connected to the top of the collection chamber via a hinge is closed and locked with a snap-lock. At this time, the bottom of the sealing cover squeezes the top of the activated carbon fiber board, rigidly pressing the activated carbon fiber board. This effectively resists the impact force generated by the steam purging during the desorption stage, thus significantly reducing the risk of the board loosening and shifting. It also increases the uniform force on the sealing gasket between the activated carbon fiber board and the collection chamber, thereby improving the overall airtightness and avoiding leakage caused by uneven force on the sealing surface when using a simple ball head connection. This not only greatly improves the maintenance efficiency of the activated carbon fiber board but also optimizes the overall layout of the device, thereby reducing manufacturing costs. 2. By setting up an intake pipe, a first air pump, a delivery pipe, a collection chamber, a steam connection pipe, control valves, a first exhaust pipe, a first connection pipe, a second air pump, a first delivery pipe, a condensation device, a second connection pipe, a third air pump, a second delivery pipe, a catalytic combustion device, and a second exhaust pipe, after the medical film is transported to the drying device via a conveying device, the drying device dries the medical film. During the drying process, the solvent in the medical film coating evaporates, generating organic waste gas. At this time, the first air pump is activated through the control terminal installed on the conveying device, so that the intake pipe can draw the organic waste gas into the delivery pipe, and then deliver it to the collection chamber. Then, the activated carbon fiber plate inside the collection chamber filters the impurities contained in the waste gas, and finally discharges it through the first exhaust pipe. At this time, the control valves on the intake pipe and the first exhaust pipe are in the open state, while the valves on the steam connection pipe, the first connection pipe, and the second connection pipe are in the closed state. At the same time, a VOCs sensor is installed inside the collection chamber. The VOCs sensor is electrically connected to the control terminal. When VOCs are detected... When the sensor detects that the activated carbon fiber adsorption is saturated, indicating a high concentration of waste gas at the outlet, it triggers the desorption device. The control terminal automatically closes the control valves on the intake pipe and the first exhaust pipe, cutting off the entry of new waste gas and the emission of waste gas after adsorption. At this time, the control terminal opens the low-pressure steam device and control valve connected to the steam connection pipe, allowing the activated carbon fiber plate to be purged with low-pressure steam. This desorbs the impurities remaining on the activated carbon fiber plate, releasing high-concentration organic solvent vapor. Then, by opening the valve on the first connection pipe, the high-concentration organic solvent is transported to the condensation device through the second air pump and the first delivery pipe. The condensation device condenses the vapor into liquid, and the liquid solvent is purified and reused in a subsequent distillation column. Then, by opening the control valve on the second connection pipe, the small amount of unliquefied organic waste gas remaining after condensation is transported to the catalytic combustion device through the third air pump and the second delivery pipe. This allows for deep oxidation and decomposition into CO2 and H2O at a temperature of 250-300℃, which are then discharged after meeting emission standards. This reduces the waste of consumables and, to some extent, lowers production costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall side view structure of this utility model; Figure 3 This is a schematic diagram of the collection chamber structure in this utility model; Figure 4 This is a schematic cross-sectional view of the collection chamber in this utility model; Figure 5 This is an exploded view of the overall structure of the mounting components in this utility model.

[0014] In the diagram: 1. Conveying device; 2. Drying device; 3. Suction pipe; 4. First air pump; 5. Gas delivery pipe; 6. Collection chamber; 7. Support plate; 8. Steam connection pipe; 9. Control valve; 10. First exhaust pipe; 11. First connecting pipe; 12. Second air pump; 13. First delivery pipe; 14. Condensation device; 15. Second connecting pipe; 16. Third air pump; 17. Second delivery pipe; 18. Catalytic combustion device; 19. Second exhaust pipe; 20. Activated carbon fiber board; 21. Locking block; 22. Mounting assembly; 2201. Connecting plate; 2202. Connecting sleeve; 2203. Pressing block; 2204. Connecting rod; 2205. Through plate; 2206. Compression spring; 2207. Connecting block; 2208. Movable groove; 2209. Limiting ball; 2210. Inclined groove; 23. Locking groove; 24. Positioning groove; 25. Limiting groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 This utility model provides a technical solution: a diagnostic film coating drying device, including a conveying device 1, a drying device 2 disposed on one side of the top surface of the conveying device 1; an air suction pipe 3 is connected through to one side of the top surface of the drying device 2, a first air pump 4 is fixedly connected to the side surface of the air suction pipe 3 away from the drying device 2, an air delivery pipe 5 is fixedly connected to the side surface of the first air pump 4 away from the air suction pipe 3, a collection chamber 6 is connected through to the side surface of the air delivery pipe 5 away from the first air pump 4, a support plate 7 is fixedly connected to the bottom surface of the collection chamber 6, one side surface of the support plate 7 is fixedly connected to the drying device 2, and the back surface of the collection chamber 6... A steam connection pipe 8 is connected through the middle of the surface, and a control valve 9 is fixedly installed inside the steam connection pipe 8. Several activated carbon fiber plates 20 are fixedly installed inside the collection chamber 6, and a locking block 21 is fixedly connected to the middle of the bottom surface of the activated carbon fiber plate 20. It also includes: symmetrically arranged installation components 22 on both sides of the activated carbon fiber plate 20 near the bottom; wherein the installation component 22 includes a connecting plate 2201 fixedly connected to the activated carbon fiber plate 20; wherein a connecting sleeve 2202 is connected through the middle of the connecting plate 2201, and a pressing block 2203 is connected through the middle of the connecting sleeve 2202, such as... Figure 1-5As shown, the conveying device 1 is a high-precision roller conveyor in the prior art, and the surface of the conveying roller is treated with anti-static and anti-scratch treatment to avoid damage to the wet coating. The conveying device 2 is electrically connected to the control terminal. The conveying device 1 includes a frame, conveying rollers, drive motor and speed adjustment mechanism. The conveying speed is adjustable to ensure smooth film conveying and avoid damage to the wet coating. The drying device 2 is enclosed on the outside of the conveying device 1 in the form of a cavity, forming a sealed drying channel. The conveying device 1 passes through the inlet and outlet of the drying device 2. The film passes through a gradient process in the conveying path inside the drying device 2, sequentially passing through a preheating section, a constant speed drying section, a deceleration drying section and a cooling and shaping section. The drying device 2 is electrically connected to the control terminal. The inlet and outlet sides of the drying device 2 are, from the inside to the outside, successively fitted with silicone brush sealing strips, annular air curtain nozzles, and polyurethane insulation sealing baffles. The bristles of the silicone brush sealing strips have a Shore hardness of 30-40 degrees. The annular air curtain nozzles spray air outwards from the inlet and outlet to form an air curtain. The sealing structure is equipped with a temperature and humidity sensor, which is electrically connected to the air pressure regulating valve of the air curtain nozzles to adjust the air curtain pressure in real time, achieving efficient sealing of the inlet and outlet of the drying chamber, maintaining stable internal process parameters, and improving the uniformity of film coating drying. Simultaneously, the first air pump 4 is electrically connected to the control terminal. The first air pump 4 is the existing Shenghong EHS-939 explosion-proof vortex air pump, and the collection chamber 6 is made of 304 stainless steel. The top is connected via a... The sealing cover is made of tempered glass with a stainless steel frame, and a high-temperature resistant silicone sealing gasket is bonded to the bottom. It features four evenly distributed snap-lock fasteners for rigid compression sealing. The steam connection pipe 8 is made of 304 stainless steel and includes a control valve 9, connecting to an external low-pressure steam device. The steam pressure is 0.3-0.5 MPa, and the temperature is 120-150℃. Simultaneously, a negative pressure adsorption device is installed on one side of the bottom surface of the conveyor device 1. This device is electrically connected to the control terminal and includes a vacuum pump (model 2BV2071-OKC00) and an adsorption chamber integrated inside the conveyor frame. The vacuum pump is fitted with the conveyor rollers with a clearance fit, and adsorption holes are evenly distributed on the surface of the conveyor rollers. The vacuum pump connects to the adsorption device via pipelines. The cavity is interconnected, generating negative pressure during operation to adsorb the film onto the surface of the conveyor roller. The adsorption force can be adjusted via the control terminal to precisely counteract the influence of the negative pressure at the top of the drying device 2, while avoiding excessive negative pressure that could cause indentations on the film surface, thus ensuring the smoothness of the coating. Furthermore, the connections of the suction pipe 3, air supply pipe 5, steam connection pipe 8, first exhaust pipe 10, first connection pipe 11, first conveying pipe 13, second connection pipe 15, second conveying pipe 17, and second exhaust pipe 19 to the first air pump, collection chamber, condenser, and catalytic combustion device are all sealed with sealing rings. These sealing rings can be made of fluororubber, perfluoroether rubber, or hydrogenated nitrile rubber, depending on the specific application, making them suitable for different connection locations.

[0017] A connecting rod 2204 is fixedly connected to the middle of the bottom surface of the pressing block 2203. A through plate 2205 is connected through the surface of the connecting rod 2204. The through plate 2205 is fixedly connected to the connecting sleeve 2202. A compression spring 2206 is sleeved on the surface of the connecting rod 2204. The bottom surface of the compression spring 2206 is fixedly connected to the through plate 2205, and the top surface of the compression spring 2206 is fixedly connected to the pressing block 2203. A connecting block 2207 is fixedly connected to the bottom surface of the connecting rod 2204. Two movable grooves 2208 are symmetrically formed on both sides of the connecting block 2207. A limit ball 2209 is movably connected inside the movable groove 2208. Two inclined grooves 2210 are symmetrically formed on both sides of the connecting sleeve 2202. The inclined grooves 2210 are movably connected to the limit ball 2209. Figure 5 As shown, the limiting ball 2209 is made of stainless steel, and the compression spring 2206 is made of high-temperature resistant Inconel alloy spring or silicon-chromium alloy spring to ensure that it can maintain a stable elastic locking force under high temperature conditions. At the same time, the diameter of the inclined groove 2210 is smaller than the diameter of the limiting ball 2209, which prevents the limiting ball 2209 from detaching from the connecting sleeve 2202. In addition, the entire mounting assembly 22 is made of 304 stainless steel.

[0018] A first exhaust pipe 10 is connected to the surface of the collection chamber 6 away from the gas supply pipe 5. A first connecting pipe 11 is connected to the surface of the first exhaust pipe 10. A second air pump 12 is fixedly connected to the bottom surface of the first connecting pipe 11. The bottom surface of the second air pump 12 is fixedly connected to the support plate 7. A first delivery pipe 13 is fixedly connected to one side surface of the second air pump 12. A condensing device 14 is connected to the surface of the first delivery pipe 13 away from the second air pump 12. A second connecting pipe 15 is connected to the surface of the condensing device 14 near the top and away from the first delivery pipe 13. A third air pump 16 is fixedly connected to the surface of the second connecting pipe 15 away from the condensing device 14. A second delivery pipe 17 is fixedly connected to the surface of the third air pump 16 away from the second connecting pipe 15. A catalytic combustion device 18 is connected to the surface of the second delivery pipe 17 away from the third air pump 16. A second exhaust pipe 19 is connected to the surface of the catalytic combustion device 18 away from the second delivery pipe 17. Figure 1 , 2As shown, the second air pump 12, the third air pump 16, the condenser 14, and the catalytic combustion device 18 are electrically connected to the control terminal. The second air pump 12 is a Kamoer KLVP1 explosion-proof diaphragm pump in the prior art, and the third air pump 16 is a Unico A40 series micro diaphragm pump in the prior art. The condenser 14 adopts a shell-and-tube condenser structure, and the condensing medium is cooling water. The condensing temperature is low and the condensing efficiency is high. It can condense organic solvent vapor into liquid. The bottom of the condenser 14 is connected to a drain pipe (with a control valve) that is connected to an external distillation column. The liquid solvent is purified by distillation and reused to achieve resource recycling. The catalytic combustion device 18 uses a precious metal catalyst, has a high reaction temperature, and has a high decomposition efficiency for organic waste gas. It can deeply oxidize the waste gas into CO2 and H2O.

[0019] The collection chamber 6 has symmetrically arranged engaging grooves 23 inside, which engage with engaging blocks 21. Positioning grooves 24 are symmetrically arranged on both sides of the engaging grooves 23, which engage with connecting sleeves 2202. Limiting grooves 25 are symmetrically arranged on both sides of the positioning grooves 24, which engage with limiting balls 2209. Through the engaging connection of the engaging grooves 23 and engaging blocks 21, the engaging connection of the positioning grooves 24 and connecting sleeves 2202, and the engaging connection between the limiting grooves 25 and limiting balls 2209, the installation of the activated carbon fiber board 20 can be completed. Simultaneously, a wear-resistant nylon bushing (MC nylon) is embedded inside the limiting grooves 25, thereby extending its service life.

[0020] Working principle: Before using this diagnostic film coating drying device, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5As shown, by first setting up a collection chamber 6, activated carbon fiber plate 20, locking block 21, mounting assembly 22, locking groove 23, positioning groove 24, and limiting groove 25, when disassembling the activated carbon fiber plate 20, pressing the pressing block 2203 causes the connecting rod 2204 and connecting block 2207 to descend after being subjected to force. As the connecting block 2207 descends, the limiting ball 2209 moves into the connecting sleeve 2202 due to the movement of the connecting block 2207 and the action of the tilting groove 2210. After the connecting block 2207 reaches the bottom, the limiting ball 2209 just enters the connecting sleeve 2202. Inside the 202, the limiting ball 2209 is completely separated from the limiting groove 25. At this point, the worker can pull the activated carbon fiber plate 20 to remove and replace it. Simultaneously, the diameter of the inclined groove 2210 must be smaller than the diameter of the limiting ball 2209, ensuring that the limiting ball 2209 does not detach from the connecting sleeve 2202. When installing the activated carbon fiber plate 20, by aligning the locking block 21 on the activated carbon fiber plate 20 with the locking groove 23 inside the collection chamber 6, and by pressing the pressing block 2203 with the worker's finger, the limiting ball 2209 is located inside the connecting sleeve 2202. Then, by engaging the locking block 21 into the groove... The connecting sleeve 2202 engages with the positioning groove 24 in the groove 23. The operator loosens the pressing block 2203, causing it to rise and reset under the action of the compression spring 2206. As the pressing block 2203 rises, it drives the connecting rod 2204 and the connecting block 2207 to rise. When the connecting block 2207 rises, the movable groove 2208 on the connecting block 2207 squeezes the limiting ball 2209, causing one side of the limiting ball 2209 to be exposed outside the connecting sleeve 2202 and engage with the limiting groove 25. This completes the initial positioning and installation of the activated carbon fiber board 20. Then, the top of the collection chamber 6 is opened... The sealing cover, connected via a hinge, is closed and locked using a snap-lock mechanism. At this point, the bottom of the sealing cover presses against the top of the activated carbon fiber plate 20, rigidly compressing it. This effectively resists the impact force generated by steam purging during the desorption stage, significantly reducing the risk of plate loosening and displacement. It also increases the uniform force on the sealing gasket between the activated carbon fiber plate 20 and the collection chamber 6, improving overall airtightness and preventing leaks caused by uneven force on the sealing surface when using a simple ball joint connection. This not only significantly improves the maintenance efficiency of the activated carbon fiber plate 20 but also optimizes the overall layout of the device, thereby reducing manufacturing costs.

[0021] Secondly, by setting up an intake pipe 3, a first air pump 4, a delivery pipe 5, a collection chamber 6, a steam connection pipe 8, a control valve 9, a first exhaust pipe 10, a first connection pipe 11, a second air pump 12, a first delivery pipe 13, a condensation device 14, a second connection pipe 15, a third air pump 16, a second delivery pipe 17, a catalytic combustion device 18, and a second exhaust pipe 19, after the medical film is transported into the drying device 2 through the conveying device 1, the drying device 2 will dry the medical film. During the drying process, the solvent in the coating of the medical film will evaporate, generating organic waste gas. At this time, the waste gas is discharged through the conveying device 1. The control terminal installed on the top starts the first air pump 4, allowing the suction pipe 3 to draw organic waste gas into the gas delivery pipe 5. The gas is then transported through the gas delivery pipe 5 to the collection chamber 6, where the activated carbon fiber plate 20 filters impurities. Finally, the gas is discharged through the first exhaust pipe 10. At this time, the control valves 9 on the suction pipe 3 and the first exhaust pipe 10 are open, while the valves on the steam connection pipe 8, the first connection pipe 11, and the second connection pipe 15 are closed. Simultaneously, a VOCs sensor is installed inside the collection chamber 6, and the connection between the VOCs sensor and the control terminal is... Electrically connected, when the VOCs sensor detects that the activated carbon fiber adsorption is saturated, i.e., the exhaust gas outlet concentration is high, the desorption device is triggered. The control terminal automatically closes the control valve 9 on the intake pipe 3 and the first exhaust pipe 10, cutting off the entry of new exhaust gas and the emission of exhaust gas after adsorption. At this time, the low-pressure steam device and control valve 9 connected to the steam connection pipe 8 are opened by the control terminal, so that the activated carbon fiber plate 20 is purged by low-pressure steam, so that the impurities remaining on the activated carbon fiber plate 20 can be desorbed into high-concentration organic solvent vapor. Then, by opening the valve on the first connection pipe 11, the high-concentration organic solvent passes through the second... The gas pump 12 and the first delivery pipe 13 deliver the gas to the condenser 14, where it is condensed into liquid. The liquid solvent is then purified by a subsequent distillation column and reused. The remaining small amount of unliquefied organic waste gas after condensation is delivered to the catalytic combustion device 18 via the third gas pump 16 and the second delivery pipe 17. This allows for deep oxidation and decomposition into CO2 and H2O at a temperature of 250-300℃, which are then discharged after meeting emission standards. This reduces the waste of consumables and, to some extent, lowers production costs.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A diagnostic film coating drying apparatus, comprising a conveying device (1), wherein a drying device (2) is provided on one side of the top surface of the conveying device (1). A suction pipe (3) is connected through one side of the top surface of the drying device (2). A first air pump (4) is fixedly connected to the side surface of the suction pipe (3) away from the drying device (2). A gas delivery pipe (5) is fixedly connected to the side surface of the first air pump (4) away from the suction pipe (3). A collection chamber (6) is connected through one side surface of the gas delivery pipe (5) away from the first air pump (4). A support plate (7) is fixedly connected to the bottom surface of the collection chamber (6). One side surface of the support plate (7) is fixedly connected to the drying device (2). A steam connection pipe (8) is connected through the middle of the back surface of the collection chamber (6). A control valve (9) is fixedly installed inside the steam connection pipe (8). Several activated carbon fiber plates (20) are fixedly installed inside the collection chamber (6). A locking block (21) is fixedly connected to the middle of the bottom surface of the activated carbon fiber plate (20). Its features are, Also includes: The activated carbon fiber board (20) has mounting components (22) symmetrically arranged on both sides near the bottom. The mounting assembly (22) includes a connecting plate (2201) that is fixedly connected to the activated carbon fiber plate (20). The connecting plate (2201) has a connecting sleeve (2202) that runs through the middle of its interior, and the connecting sleeve (2202) has a pressing block (2203) that runs through its interior.

2. The diagnostic film coating drying apparatus according to claim 1, characterized in that: A connecting rod (2204) is fixedly connected to the middle of the bottom surface of the pressing block (2203). A through plate (2205) is connected through the surface of the connecting rod (2204). The through plate (2205) is fixedly connected to the connecting sleeve (2202). A compression spring (2206) is sleeved and connected to the surface of the connecting rod (2204). The bottom surface of the compression spring (2206) is fixedly connected to the through plate (2205), and the top surface of the compression spring (2206) is fixedly connected to the pressing block (2203).

3. The diagnostic film coating drying apparatus according to claim 2, characterized in that: A connecting block (2207) is fixedly connected to the bottom surface of the connecting rod (2204). The two sides of the connecting block (2207) are symmetrically provided with movable grooves (2208). A limiting ball (2209) is movably connected inside the movable groove (2208).

4. The diagnostic film coating drying apparatus according to claim 1, characterized in that: The two sides of the connecting sleeve (2202) are symmetrically provided with inclined grooves (2210), and the inclined grooves (2210) are movably connected to the limiting ball (2209).

5. The diagnostic film coating drying apparatus according to claim 1, characterized in that: The collection chamber (6) is connected to a first exhaust pipe (10) on the side away from the gas supply pipe (5). A first connecting pipe (11) is connected to the side of the first exhaust pipe (10). A second air pump (12) is fixedly connected to the bottom surface of the first connecting pipe (11). The bottom surface of the second air pump (12) is fixedly connected to the support plate (7). A first conveying pipe (13) is fixedly connected to one side surface of the second air pump (12). A condensing device (14) is connected to the side surface of the first conveying pipe (13) away from the second air pump (12).

6. The diagnostic film coating drying apparatus according to claim 5, characterized in that: The condenser (14) has a second connecting pipe (15) that is connected through the surface of the condenser (14) near the top and away from the first conveying pipe (13). The second connecting pipe (15) has a third air pump (16) that is fixedly connected to the surface of the second connecting pipe (15) away from the condenser (14). The third air pump (16) has a second conveying pipe (17) that is fixedly connected to the surface of the third air pump (16) away from the second connecting pipe (15). The second conveying pipe (17) has a catalytic combustion device (18) that is connected through the surface of the second conveying pipe (17) away from the third air pump (16). The catalytic combustion device (18) has a second exhaust pipe (19) that is connected through the surface of the catalytic combustion device (18) away from the second conveying pipe (17).

7. The diagnostic film coating drying apparatus according to claim 1, characterized in that: The collection chamber (6) is symmetrically provided with engaging grooves (23), which engage with engaging blocks (21). Positioning grooves (24) are symmetrically provided on both sides of the engaging grooves (23), which engage with connecting sleeves (2202). Limiting grooves (25) are symmetrically provided on both sides of the positioning grooves (24), which engage with limiting balls (2209).

Images