Industrial packaging film drying device

Abstract

This invention relates to the field of packaging film drying technology and discloses an industrial packaging film drying device, including a base frame, conveyor rollers, a top cover, and a drying module. The top cover is rotatably connected to the upper surface of the base frame. The conveyor rollers are located on both sides of the base frame and the top cover. The drying module is located inside the base frame and the top cover. A diffuser is installed in the middle of the base frame, and diffuser holes are opened on the inclined surface of the upper surface of the diffuser. A ceramic electric heating element is installed on the inner wall of the diffuser, located above the impeller of the crossflow fan. A dust removal module and a circulation module are installed inside the base frame. This device achieves comprehensive drying of the packaging film through a uniform air distribution structure, removes dust through an electrostatic dust removal module to ensure quality and equipment stability, and achieves efficient utilization of hot air through a condensation and circulation system. This triple optimization effectively solves the problems of uneven drying, dust interference, and high energy consumption in traditional devices.

Description

Technical Field

[0001] This invention relates to the field of packaging film drying technology, and more specifically, to an industrial packaging film drying apparatus. Background Technology

[0002] Industrial packaging film drying equipment is a specialized processing device used in the production and processing of industrial packaging films. It is mainly used to dry industrial packaging films to meet the requirements of subsequent processing and use.

[0003] However, traditional industrial packaging film drying methods have significant drawbacks, making it difficult to balance drying efficiency and energy consumption. Industrial packaging films require drying during production or subsequent processing. Traditional methods mostly rely solely on directly introducing hot air to dry the film, with the hot air then being directly released into the air after use, resulting in energy waste. Some methods employ hot air circulation structures, but these have low efficiency in handling moisture in the circulating hot air, with some moisture re-entering the drying process, leading to poor drying results and low efficiency. On the other hand, failing to use hot air circulation results in substantial heat loss and high energy consumption. Therefore, it is urgent to solve these problems. Summary of the Invention

[0004] (a) Technical problems to be solved In view of the above situation and to overcome the defects of the prior art, the present invention provides an industrial packaging film drying device, which aims to solve the problems in the background art.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an industrial packaging film drying device, comprising a base frame, conveyor rollers, a top cover, and a drying module. The top cover is rotatably connected to the upper surface of the base frame. The conveyor rollers are disposed on both sides of the base frame and the top cover. The drying module is disposed inside the base frame and the top cover. The drying module includes a diffuser hood, diffuser holes, a crossflow fan impeller, and a ceramic electric heating element. The diffuser hood is installed in the middle of the base frame and is T-shaped with inclined surfaces on both sides of its upper surface. The diffuser holes are opened on the inclined surfaces of the upper surface of the diffuser hood. The crossflow fan impeller is rotatably connected to the inner wall of the diffuser hood. The ceramic electric heating element is installed on the inner wall of the diffuser hood above the crossflow fan impeller. A dust removal module and a circulation module are disposed inside the base frame.

[0006] Preferably, there are four conveying rollers arranged symmetrically in pairs, and a drive motor is installed on the outer surface of the equipment base at the front end of the conveying rollers. The output shaft of the drive motor is fixedly connected to the front end of the rotating shaft of the conveying rollers.

[0007] Preferably, the dust removal module includes a gas collection hood, a support plate, a rotating roller, a metal plate, a metal rod, an electrostatic release ring, and an electrostatic application ring. Two gas collection hoods are symmetrically installed on both sides of the inner wall of the equipment base. The rotating roller is rotatably connected to the end of the opening of the gas collection hood via the support plate. The metal plate is fixedly connected to the outer surface of the rotating roller. Several metal plates are evenly distributed in a circular array. A mounting hole is provided on the outer surface of the front end of each metal plate. A spring and a metal rod are installed in the mounting hole. A limiting ring for limiting the movement of the metal rod is threaded into the mounting hole. The electrostatic release ring and the electrostatic application ring are respectively installed on the support plate. Both the electrostatic release ring and the electrostatic application ring are semi-circular in shape. Terminals are fixedly connected to the outer surfaces of both the electrostatic release ring and the electrostatic application ring. An electrostatic generator is installed on the outer surface of the equipment base. The output end of the electrostatic generator is electrically connected to the terminal on the outer surface of the electrostatic application ring. The terminal on the outer surface of the electrostatic release ring is grounded via a wire to release excess static electricity.

[0008] Preferably, the circulation module includes a gas collecting hood and condenser pipes. The gas collecting hood is installed at the lower end of the diffuser hood, and the condenser pipes are installed on both sides of the gas collecting hood. The condenser pipes are U-shaped and are arranged in a rectangular array. The other end of the condenser pipes is connected to the interior of the gas collecting hood. A water tank is also installed on the lower surface of the equipment base. Two pipes with valves are provided in front of the water tank. The water tank is filled with condensate. The middle part of the condenser pipes is placed in the condensate water. A heat insulation plate is installed on the inner side wall of the equipment base above the gas collecting hood and condenser pipes.

[0009] Preferably, a condensate storage tank is mounted on the outer surface of the water tank via a bracket, a drain pipe with a valve is mounted on the lower surface of the condensate storage tank, a condensate drain pipe is fixedly connected to the lower surface of the condensate pipe, the condensate drain pipe is inclined and its end is connected to the condensate storage tank, and a one-way valve is installed in the middle of the drain pipe.

[0010] Preferably, a refrigeration module is provided on the upper surface of the condensate storage tank. The refrigeration module includes a compressor, a first heat exchanger, an expansion valve, and a second heat exchanger. The compressor is installed on the upper surface of the condensate storage tank, the first heat exchanger is installed on both sides of the inner wall of the gas collection hood, and the second heat exchanger is located inside the tank. The compressor, the first heat exchanger, and the second heat exchanger are interconnected by a connecting pipe. The expansion valve is installed on the connecting pipe, and the connecting pipe is filled with refrigerant.

[0011] Preferably, the drying module, dust removal module, circulation module and refrigeration module are each provided in twos and are symmetrically installed inside the equipment base frame and the top cover respectively. The back of the top cover is located behind the air diffuser and the air collection hood, and the lower end of the air diffuser and the air collection hood inside the equipment base frame is connected to the interior of the air diffuser and the air collection hood.

[0012] Preferably, a drive motor is fixedly installed at the front of the equipment base frame, in front of both the crossflow fan impeller and the rotating roller. The output shaft of the drive motor is fixedly connected to the front end of the rotating shaft of the crossflow fan impeller and the rotating roller, respectively. A handle is installed at the front of the top cover.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides an industrial packaging film drying device, which has the following beneficial effects: 1. This industrial packaging film drying device, through the setting of T-shaped air diffuser and air diffuser holes, enables the industrial packaging film drying device to achieve the effect of uniform hot air distribution. Through the coordinated setting of cross-flow fan impeller, ceramic electric heating element and conveying roller, the hot air can be fully covered on the surface of packaging film during use, avoiding uneven drying in some areas, thereby improving drying efficiency and achieving the goal of balancing drying effect and energy consumption.

[0014] 2. This industrial packaging film drying device, through the setting of an electrostatic application ring and an electrostatic release ring, enables the industrial packaging film drying device to have the effect of electrostatic dust removal. Through the coordinated arrangement of rotating rollers, metal rods, springs and air collection hoods, it can effectively remove dust from the surface of the packaging film during use, preventing dust from entering the circulation system with the airflow and causing blockage or affecting the drying effect, thereby improving the drying quality and the stability of the circulation system, and achieving the purpose of optimizing the drying process.

[0015] 3. This industrial packaging film drying device, through the setting of condenser pipes and refrigeration modules, enables the efficient handling of water vapor in the circulating airflow. Through the coordinated setting of air collection hood, water tank, condensate storage tank and heat-insulated pipes, hot air can be recycled during use, reducing heat loss, while effectively removing water vapor from the circulating airflow to prevent water vapor from affecting the drying effect. Thus, it achieves a balance between drying efficiency and energy consumption, thereby reducing energy waste and improving drying quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention; Figure 3 This is a three-dimensional structural diagram of the upper cover of the present invention in the open state; Figure 4 This is a schematic diagram of the internal structure of the device of the present invention; Figure 5 This is a schematic diagram of the drying module of the present invention; Figure 6 This is a schematic diagram of the cooling module of the present invention; Figure 7 This is a schematic diagram of the structure of the air diffuser of the present invention; Figure 8 This is a schematic diagram of the dust removal module of the present invention; Figure 9 This is a schematic diagram of the exploded structure of the rotating roller end of the present invention; Figure 10 For the present invention Figure 3 A schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Equipment base frame; 2. Conveyor roller; 3. Drive motor; 4. Diffuser hood; 5. Diffuser hole; 6. Crossflow fan impeller; 7. Gas collection hood; 8. Condenser pipe; 9. Gas collection hood; 10. Support plate; 11. Rotating roller; 12. Metal plate; 13. Spring; 14. Metal rod; 15. Limiting ring; 16. Static discharge ring; 17. Static application ring; 18. Terminal block; 19. Ceramic heating element; 20. Water tank; 21. Condensate storage tank; 22. Drain pipe; 23. Compressor; 24. First heat exchanger; 25. Expansion valve; 26. Second heat exchanger; 27. Top cover; 28. Handle; 29. ​​Insulated pipe; 30. Condensate drain pipe; 31. Insulation plate. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0021] Please refer to the figure. Figures 1 to 10The industrial packaging film drying device provided in this embodiment has a top cover 27 rotatably connected to the upper surface of the equipment base 1, and a handle 28 is installed on the front of the top cover 27; four conveying rollers 2 are provided on both sides of the equipment base 1 and the top cover 27, arranged symmetrically in pairs; a drive motor 3 is installed on the outer surface of the equipment base 1 at the front end of the conveying rollers 2, and the output shaft of the drive motor 3 is fixedly connected to the front end of the rotating shaft of the conveying rollers 2; a drying module is provided inside the equipment base 1 and the top cover 27, and the drying module includes an air diffuser 4, an air diffuser 5, and a crossflow fan impeller 6. The ceramic electric heating element 19 and the air diffuser 4 are installed in the middle of the equipment base frame 1, in a T-shape with inclined surfaces on both sides of the upper surface. The air diffuser 5 is opened on the inclined surface of the upper surface of the air diffuser 4. The crossflow fan impeller 6 is rotatably connected to the inner wall of the air diffuser 4. The ceramic electric heating element 19 is installed on the inner wall of the air diffuser 4 above the crossflow fan impeller 6. A drive motor 3 is also installed on the outer surface of the equipment base frame 1 in front of the crossflow fan impeller 6. Its output shaft is fixedly connected to the front end of the shaft of the crossflow fan impeller 6, forming the core structure for uniform hot air drying.

[0022] Specifically, by opening the top cover 27 with handle 28, the industrial packaging film to be dried is placed on the conveyor roller 2 and adjusted to be level. After closing the top cover 27, the drive motor 3 and the ceramic electric heating element 19 are started. The drive motor 3 drives the conveyor roller 2 and the crossflow fan impeller 6 to rotate. The conveyor roller 2 stably conveys the packaging film to the drying area above the air diffuser 4. The rotation of the crossflow fan impeller 6 generates a continuous airflow. The airflow is rapidly heated by the ceramic electric heating element 19 to form hot air. The inclined surfaces on both sides of the T-shaped air diffuser 4 cooperate with the evenly distributed air diffuser holes 5 to make the hot air blown evenly and comprehensively onto the upper and lower surfaces of the packaging film, avoiding uneven drying in some areas, improving drying efficiency, reducing hot air waste, and balancing drying effect and energy consumption.

[0023] Please see Figure 4 , Figure 8 , Figure 9The equipment base 1 of this industrial packaging film drying device is equipped with a dust removal module, which includes a gas collection hood 9, a support plate 10, a rotating roller 11, a metal plate 12, a metal rod 14, an electrostatic release ring 16, and an electrostatic application ring 17. Two gas collection hoods 9 are symmetrically installed on both sides of the inner wall of the equipment base 1. The rotating roller 11 is rotatably connected to the opening end of the gas collection hood 9 via the support plate 10. A drive motor 3 is installed on the outer surface of the equipment base 1 in front of the rotating roller 11, and its output shaft is fixedly connected to the front end of the rotating roller 11's shaft. Several metal plates 12 are arranged in a ring shape. The array is evenly distributed on the outer surface of the rotating roller 11. The outer surface of the front end of the metal plate 12 has a mounting hole, in which a spring 13 and a metal rod 14 are installed. A limit ring 15 is threaded into the mounting hole. The electrostatic release ring 16 and the electrostatic application ring 17 are both semi-circular and are respectively installed on the support plate 10. The outer surface of each ring is fixedly connected with a terminal 18. An electrostatic generator is installed on the outer surface of the equipment base frame 1. Its output end is electrically connected to the terminal 18 of the electrostatic application ring 17. The terminal 18 of the electrostatic release ring 16 is grounded through a wire, which constitutes the key structure of electrostatic dust removal.

[0024] Specifically, during the drying process, the drive motor 3 drives the rotating roller 11 to rotate, and the metal rod 14 on the metal plate 12 is tightly attached to the electrostatic application ring 17 under the elastic action of the spring 13. The electrostatic generator applies static electricity to the electrostatic application ring 17 through the terminal 18. The static electricity is transferred to the metal rod 14 and the metal plate 12, so that the metal plate 12 near the packaging film adsorbs surface dust when it is close to the packaging film. The rotating roller 11 continues to rotate, driving the dust-adsorbed metal plate 12 into the area of ​​the electrostatic release ring 16. The electrostatic release ring 16 releases excess static electricity through the grounding terminal 18. The dust is removed from the metal plate 12 and absorbed by the air collection hood 9. The dust enters the condensation module with the circulating airflow and is discharged with the condensate water, avoiding the dust from affecting the drying quality of the packaging film and ensuring the stable operation of the circulation system.

[0025] Please see Figure 4 , Figure 5 , Figure 6The equipment base 1 of this industrial packaging film drying device is equipped with a circulation module and a refrigeration module. The circulation module includes a gas collecting hood 7, condenser pipes 8, and insulation pipes 29. The gas collecting hood 7 is installed at the lower end of the diffuser hood 4. The condenser pipes 8 are U-shaped and are evenly distributed in a rectangular array on both sides of the gas collecting hood 7. The other end of the condenser pipes 8 is connected to the interior of the gas collection hood 9. A water tank 20 is installed on the lower surface of the equipment base 1 and is filled with condensate. The middle part of the condenser pipes 8 is placed in the condensate water. A heat insulation plate 31 is installed on the inner side wall of the equipment base 1 above the gas collecting hood 7 and the condenser pipes 8. A condensate storage tank 21 is installed on the outer surface of the water tank 20 through a bracket. An inclined condensate drain pipe 30 is fixedly connected to the lower surface of the condenser pipes 8. The unit is connected to the condensate storage tank 21. A discharge pipe 22 with a valve and a one-way valve is installed on the lower surface of the condensate storage tank 21. The refrigeration module includes a compressor 23, a first heat exchanger 24, an expansion valve 25, and a second heat exchanger 26. The compressor 23 is installed on the upper surface of the condensate storage tank 21. The first heat exchanger 24 is installed on both sides of the inner wall of the gas collection hood 7. The second heat exchanger 26 is located inside the water tank 20. The compressor 23, the first heat exchanger 24, and the second heat exchanger 26 are interconnected through a refrigerant-filled connecting pipe. The expansion valve 25 is installed on the connecting pipe. The heat-insulating pipe 29 is installed behind the top cover 27. Its lower end is connected to the interior of the air diffuser hood 4 and the gas collection hood 9 inside the equipment base frame 1, forming the core structure for hot air circulation and water vapor treatment.

[0026] Specifically, after the hot air finishes drying, the airflow carrying water vapor and dust enters the air collection hood 7 and is then introduced into the condenser pipe 8. The middle of the condenser pipe 8 is placed in the condensate water in the water tank 20. The water vapor in the airflow condenses into water droplets upon contact with the condensate. After the water droplets adsorb the dust, they flow into the condensate water storage tank 21 along the condensate water drain pipe 30. Wastewater is discharged periodically by opening the drain pipe 22. The refrigeration module is started, and the compressor 23 compresses the refrigerant into a high-temperature and high-pressure gas. After being cooled by the first heat exchanger 24 (the heat preheats the condensed hot air), it becomes a medium-temperature and high-pressure liquid. It is then throttled and depressurized into a low-temperature and low-pressure liquid by the expansion valve 25 and enters the second heat exchanger 26 to absorb the heat from the condensate water in the water tank 20, keeping the condensate water at a low temperature and improving the water vapor condensation efficiency. The treated dry hot air flows back to the air diffuser 4 through the insulated pipe 29 to continue participating in the drying cycle, reducing heat loss and energy waste.

[0027] In summary, when using the entire equipment: First, open the top cover 27 by turning the handle 28 upwards. Place the industrial packaging film to be dried on the conveyor rollers 2 on both sides of the equipment base frame 1, and adjust the position of the packaging film to make it flat and adhere to the surface of the conveyor rollers 2. After closing the top cover 27, start the drive motor 3, ceramic electric heating element 19, electrostatic generator and refrigeration module on the outer surface of the equipment base frame 1 in sequence. Multiple drive motors 3 drive the conveyor rollers 2, crossflow fan impeller 6 and rotating roller 11 to rotate. The conveyor rollers 2 stably convey the packaging film to the drying area above the air diffuser 4. The crossflow fan impeller 6 rotates to generate a continuous airflow. The airflow is quickly heated by the ceramic electric heating element 19 to form hot air. The hot air is evenly blown onto the surface of the packaging film through the air diffuser holes 5 on the inclined surface of the air diffuser 4 to achieve preliminary drying. Simultaneously, the metal rod 14 on the rotating roller 11 is tightly pressed against the surface of the packaging film under the elastic action of the spring 13. The electrostatic generator applies static electricity to the electrostatic application ring 17 through the terminal 18. The electrostatic application ring 17 transfers the static electricity to the metal rod 14. When the metal rod 14 contacts the packaging film, it charges the surface dust. Then, the rotating roller 11 drives the metal rod 14 into the area of ​​the electrostatic release ring 16. The electrostatic release ring 16 releases the excess static electricity on the metal rod 14 through the grounded terminal 18. The air collection hood 9 simultaneously collects the airflow carrying charged dust. The hot air carrying water vapor and dust enters the air collection hood 7, which guides the hot air into the condenser pipe. 8. The middle part of the condenser tube 8 is placed in the condensate water in the water tank 20. Water vapor in the airflow condenses into water droplets upon contact with the condenser. When dust collides with the wall of the condenser tube 8, it is adsorbed by the water droplets. The water droplets flow into the condensate storage tank 21 along the inclined condensate drain pipe 30. The compressor 23 of the refrigeration module starts, compressing the refrigerant into a high-temperature, high-pressure gas. After being dissipated by the first heat exchanger 24, it becomes a medium-temperature, high-pressure liquid, allowing the heat to preheat the condensed hot air. The refrigerant is throttled and depressurized through the expansion valve 25 to become a low-temperature, low-pressure liquid, entering the second heat exchanger 26 to absorb heat from the condensate water in the water tank 20, keeping the condensate water at a low temperature to improve condensation efficiency. The treated dry hot air flows back to the diffuser 4 through the insulated pipe 29 to continue participating in the drying cycle. After drying is completed, all modules are shut down.

[0028] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial packaging film drying device, comprising a base frame (1), conveyor rollers (2), a top cover (27), and a drying module, wherein the top cover (27) is rotatably connected to the upper surface of the base frame (1), the conveyor rollers (2) are disposed on both sides of the base frame (1) and the top cover (27), and the drying module is disposed inside the base frame (1) and the top cover (27), characterized in that: The drying module includes a diffuser hood (4), a diffuser hole (5), a crossflow fan impeller (6), and a ceramic electric heating element (19). The diffuser hood (4) is installed in the middle of the equipment base frame (1). The diffuser hood (4) is T-shaped and has inclined surfaces on both sides of its upper surface. The diffuser hole (5) is opened on the inclined surface of the upper surface of the diffuser hood (4). The crossflow fan impeller (6) is rotatably connected to the inner wall of the diffuser hood (4). The ceramic electric heating element (19) is installed on the inner wall of the diffuser hood (4) above the crossflow fan impeller (6). A dust removal module is installed inside the equipment base frame (1), and a circulation module is installed inside the equipment base frame (1).

2. The industrial packaging film drying device according to claim 1, characterized in that: The conveying rollers (2) are arranged in four pairs, symmetrically arranged on the left and right. The outer surface of the equipment base frame (1) is equipped with a drive motor (3) at the front end of the conveying rollers (2). The output shaft of the drive motor (3) is fixedly connected to the front end of the rotating shaft of the conveying rollers (2).

3. The industrial packaging film drying device according to claim 1, characterized in that: The dust removal module includes a dust collection hood (9), a support plate (10), a rotating roller (11), a metal plate (12), a metal rod (14), an electrostatic release ring (16), and an electrostatic application ring (17). Two dust collection hoods (9) are symmetrically installed on both sides of the inner wall of the equipment base frame (1). The rotating roller (11) is rotatably connected to the end of the opening of the dust collection hood (9) via the support plate (10). The metal plate (12) is fixedly connected to the outer surface of the rotating roller (11). Several metal plates (12) are evenly distributed in a circular array. Mounting holes are opened on the outer surface of the front end of each metal plate (12), and springs (13) and metal rods (14) are installed in the mounting holes. 4) A limiting ring (15) for limiting the metal rod (14) is threaded into the mounting hole. The electrostatic release ring (16) and the electrostatic application ring (17) are respectively installed on the support plate (10). The electrostatic release ring (16) and the electrostatic application ring (17) are both semi-circular. The outer surfaces of the electrostatic release ring (16) and the electrostatic application ring (17) are fixedly connected with terminals (18). An electrostatic generator is installed on the outer surface of the equipment base frame (1). The output end of the electrostatic generator is electrically connected to the terminal (18) on the outer surface of the electrostatic application ring (17). The terminal (18) on the outer surface of the electrostatic release ring (16) is grounded through a wire to release excess static electricity.

4. The industrial packaging film drying device according to claim 1, characterized in that: The circulation module includes a gas collecting hood (7) and a condenser pipe (8). The gas collecting hood (7) is installed at the lower end of the diffuser hood (4). The condenser pipe (8) is installed on both sides of the gas collecting hood (7). The condenser pipe (8) is U-shaped. There are several condenser pipes (8) evenly distributed in a rectangular array. The other end of the condenser pipe (8) is connected to the interior of the gas collecting hood (9). A water tank (20) is also installed on the lower surface of the equipment base frame (1). Two pipes with valves are provided in front of the water tank (20). The interior of the water tank (20) is filled with condensate. The middle part of the condenser pipe (8) is placed in the condensate water. A heat insulation plate (31) is installed on the inner side wall of the equipment base frame (1) above the gas collecting hood (7) and the condenser pipe (8).

5. An industrial packaging film drying device according to claim 4, characterized in that: A condensate storage tank (21) is mounted on the outer surface of the water tank (20) via a bracket. A drain pipe (22) with a valve is mounted on the lower surface of the condensate storage tank (21). A condensate drain pipe (30) is fixedly connected to the lower surface of the condensate pipe (8). The condensate drain pipe (30) is inclined and its end is connected to the condensate storage tank (21). A one-way valve is installed in the middle of the drain pipe (22).

6. The industrial packaging film drying device according to claim 5, characterized in that: The upper surface of the condensate storage tank (21) is provided with a refrigeration module, which includes a compressor (23), a first heat exchanger (24), an expansion valve (25), and a second heat exchanger (26). The compressor (23) is installed on the upper surface of the condensate storage tank (21), the first heat exchanger (24) is installed on both sides of the inner wall of the gas collection hood (7), and the second heat exchanger (26) is located inside the water tank (20). The compressor (23), the first heat exchanger (24), and the second heat exchanger (26) are interconnected by a connecting pipe. The expansion valve (25) is installed on the connecting pipe, and the connecting pipe is filled with refrigerant.

7. An industrial packaging film drying device according to claim 1 or 6, characterized in that: The drying module, dust removal module, circulation module and refrigeration module are each provided in two and are symmetrically installed inside the equipment base frame (1) and the top cover (27). The top cover (27) is located behind the air diffuser (4) and the air collection hood (9) and is equipped with a heat-insulating pipe (29). The lower end of the heat-insulating pipe (29) is connected to the interior of the air diffuser (4) and the air collection hood (9) inside the equipment base frame (1).

8. An industrial packaging film drying device according to claim 1, characterized in that: The equipment base frame (1) is fixedly equipped with drive motors (3) in front of the crossflow fan impeller (6) and the rotating roller (11). The output shaft of the drive motor (3) is fixedly connected to the front end of the rotating shaft of the crossflow fan impeller (6) and the rotating roller (11), respectively. A handle (28) is installed in front of the top cover (27).

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