PTFE degreasing device

Abstract

The utility model relates to the technical field of thin film production, and discloses a PTFE degreasing device which comprises a rack, a heating box is installed on the top face of the rack, a drying structure for heating a thin film is arranged on the wall face of the heating box, the drying structure comprises a preheating box, an exhaust box, an evacuation plate and an end plate, the preheating box and the exhaust box are both fixedly connected with the heating box, and the evacuation plate is fixedly connected with the exhaust box. The preheating box and the air exhaust boxes are both of a hollow structure, a fan and a thermocouple are arranged in the preheating box, the two air exhaust boxes are symmetrically arranged on the wall face of the heating box, the top face and the bottom face of a thin film passing through a cavity of the heating box can be blown and dried through a lateral air exhaust mode, the drying and degreasing effects are promoted, and the drying and degreasing effects are improved through a one-exhaust one-suction mode. Compared with a direct hot air blowing mode, energy consumption can be reduced, the pipeline is arranged on the back face of the evacuation plate, air in front of the end plate can be sucked by the pipeline more evenly, and the phenomenon of turbulent flow caused by the fact that the pipeline is directly used for sucking the air is restrained.

Description

Technical Field

[0001] The utility model relates to the technical field of film production, in particular to a PTFE degreasing device. Background Art

[0002] The prior art discloses a double-roll degreasing device for PTFE air purification membrane (CN202322052934.7), which includes an unwinding component, a winding component and an oven, wherein the unwinding component and the winding component are respectively arranged at opposite ends of the oven, the unwinding component includes a first frame, a first unwinding roller and a second unwinding roller, the first unwinding roller and the second unwinding roller are both arranged on the first frame, the second unwinding roller is located below one end of the first unwinding roller, and a tensioning assembly is arranged at the end of the first unwinding roller away from the first frame, the winding component includes a second frame and a first winding roller and a second winding roller arranged on the second frame, and the first winding roller and the second winding roller are both connected to a driving motor.

[0003] The existing technology mainly achieves heating and drying of the film by vertical blowing, and the film is laid flat in and out of the drying box, which makes it difficult for the side of the film away from the exhaust port to contact the hot air, limiting the heating and drying effect and leaving room for optimization.

[0004] For this purpose, we propose a PTFE degreasing device. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a PTFE degreasing device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a PTFE degreasing device, comprising a frame, a wall surface of the frame is provided with a plurality of rollers for guiding, a heating box is installed on the top surface of the frame, and a film is dried by passing through the heating box, and a drying structure for heating the film is provided on the wall surface of the heating box, and the drying structure comprises a preheating box, an exhaust box, an evacuation plate and an end plate, the preheating box and the exhaust box are both fixedly connected to the heating box, the preheating box and the exhaust box are both hollow structures, a fan and a thermocouple are provided in the preheating box, two exhaust boxes are symmetrically arranged on the wall surface of the heating box, the two exhaust boxes are connected to the preheating box, the two exhaust boxes are used for exhaust and return air respectively, the same evacuation plate is fixedly connected to the cavity of each exhaust box, and an end plate is fixedly connected to the end surface of each exhaust box, and the end plate forms a grid structure.

[0007] As a preferred embodiment of the present invention, the drying structure also includes a first partition and a second partition, the first partition and the second partition are both fixedly connected to the preheating box, the first partition and the second partition together divide the preheating box chamber into three independent spaces, the fan is installed on the wall of the first partition, the thermocouple is installed in the chamber between the first partition and the second partition, and the two exhaust boxes are respectively connected to the chambers close to the inner walls on both sides of the preheating box.

[0008] As a preferred embodiment of the present invention, the preheating box forms a box structure with an open top, and a sealing cover is provided on the top surface of the preheating box, which is locked to the preheating box by bolts, and the preheating box and the first partition form a plate with the same height and width as the preheating box chamber, and a notch is provided on the top surface of the second partition for connecting the chambers on both sides of the second partition.

[0009] As a preferred embodiment of the utility model, the drying structure further comprises an air guide plate and a socket, and the walls on both sides of the preheating box are fixedly connected to a plurality of identical air guide plates, and the wall surface of each air guide plate is provided with a plurality of identical sockets, and the thermocouple is inserted into the socket.

[0010] As a preferred embodiment of the present invention, the air guide plate is formed as a plate of the same height as the preheating box chamber, the length of the air guide plate is smaller than the width of the cavity of the preheating box, and a plurality of air guide plates are equidistantly arranged on the inner walls on both sides of the preheating box.

[0011] As a preferred embodiment of the utility model, the exhaust box forms a box body with an opening on the side wall, the openings of the two exhaust boxes are arranged opposite to each other, the end plate is adapted to the exhaust box, a plurality of air inlet grooves are evenly opened on the wall surface of the end plate, and the end plate forms a grid structure through the air inlet grooves.

[0012] As a preferred embodiment of the utility model, the evacuation plate is formed into a plate with a trapezoidal horizontal cross-section, the evacuation plate is at the same height as the exhaust box chamber, the upper and lower ends of the evacuation plate are respectively fixedly connected to the top surface and the inner bottom surface of the exhaust box, a gap is left between the two side walls of the evacuation plate and the inner wall surface of the exhaust box, a pipe is fixedly connected to the top surface of the exhaust box, a gap is left between the back side of the evacuation plate and the rear wall surface of the exhaust box, the pipe is located in the gap, the pipe passes through the preheating box and extends into the preheating box cavity.

[0013] Beneficial Effects

[0014] The utility model provides a PTFE degreasing device, which has the following beneficial effects:

[0015] 1. A PTFE degreasing device, by arranging a fan in a preheating box, the fan is a duct fan, and the gas in one of the exhaust boxes is sucked into the preheating box through the fan, and the gas enters the exhaust box from the air inlet groove on the wall of the end plate and impacts the evacuation plate, the smaller end face of the evacuation plate faces the end plate, and is dispersed into the space behind the evacuation plate through the inclined surfaces on both sides of the evacuation plate, and the gas enters the exhaust box through the pipeline, is heated by the thermocouple, and is then sent to another exhaust box for discharge, so as to realize the circulation of hot air, and the lateral exhaust method enables the top and bottom surfaces of the film passing through the heating box cavity to be blown dry, thereby promoting the drying and degreasing effect, and the one-row-one-suction method can recover the gas with residual temperature and heat it for reuse, which can reduce energy consumption and have better actual production effect compared with the method of directly blowing hot air, and the pipeline is placed on the back of the evacuation plate, so that the air in front of the end plate can be more evenly sucked into the pipeline, thereby suppressing the phenomenon of turbulence caused by directly sucking in the gas through the pipeline.

[0016] 2. This PTFE degreasing device, by setting up an air guide plate, uses the air guide plate to separate the heating chamber into a serpentine curved channel, and the circulating gas flows through the heating chamber to form a serpentine curved flow trajectory, which can increase the contact time between the gas and the air guide plate, ensure the contact area between the air and the thermocouple in the jack, and improve the heating effect of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall stereogram of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the installation of the drying structure and the heating box of the utility model;

[0019] Figure 3 This is a three-dimensional diagram of the drying structure of the utility model;

[0020] Figure 4 It is the assembly drawing of the exhaust box, evacuation plate and end plate of the utility model;

[0021] Figure 5 It is a schematic diagram of the internal structure of the preheating box of the utility model.

[0022] Legend: 10, rack; 11, heating box; 20, preheating box; 21, first partition; 22, second partition; 23, air guide plate; 24, socket; 30, exhaust box; 31, evacuation plate; 32, end plate. DETAILED DESCRIPTION

[0023] A PTFE degreasing device, such as Figure 1As shown, it includes a frame 10, the wall of the frame 10 is provided with a plurality of rollers for guiding, the top surface of the frame 10 is installed with a heating box 11, the film passes through the heating box 11 to be dried, the film is guided by the rollers, the film is continuously stretched during the winding process, and degreasing is achieved in conjunction with the drying of the film. This is an existing well-known technology and will not be elaborated here.

[0024] like Figure 2 , Figure 3 and Figure 4As shown, the wall of the heating box 11 is provided with a drying structure for heating the film, and the drying structure includes a preheating box 20, an exhaust box 30, an evacuation plate 31 and an end plate 32. The preheating box 20 and the exhaust box 30 are both fixedly connected to the heating box 11. The preheating box 20 and the exhaust box 30 are both hollow structures. A fan and a thermocouple are arranged in the preheating box 20. Two exhaust boxes 30 are symmetrically arranged on the wall of the heating box 11. The two exhaust boxes 30 are both connected to the preheating box 20. The two exhaust boxes 30 are used for exhaust and return air respectively. The same evacuation plate 31 is fixedly connected to the cavity of each exhaust box 30. An end plate 32 is fixedly connected to the end face of each exhaust box 30. The end plate 32 forms a grid structure. The box 20 forms a box structure with a top opening, a sealing cover is provided on the top surface of the preheating box 20, and the sealing cover is locked with the preheating box 20 by bolts, the preheating box 20 and the first partition 21 form a plate with the same height and width as the chamber of the preheating box 20, and a notch is provided on the top surface of the second partition 22 for connecting the chambers on both sides of the second partition 22, and the exhaust box 30 forms a box body with side wall openings, and the openings of the two exhaust boxes 30 are arranged oppositely, and the end plate 32 is adapted to the exhaust box 30, and a plurality of air inlet grooves are evenly provided on the wall surface of the end plate 32, and the end plate 32 forms a grid structure through the air inlet grooves, and the evacuation plate 31 forms a plate with a trapezoidal horizontal cross-section, and the evacuation plate 31 is the same height as the chamber of the exhaust box 30, and the upper and lower sides of the evacuation plate 31 are The ends are fixedly connected to the top surface and the bottom surface of the exhaust box 30 respectively, and a gap is left between the two side walls of the evacuation plate 31 and the inner wall surface of the exhaust box 30. The top surface of the exhaust box 30 is fixedly connected with a pipeline, and a gap is left between the back side of the evacuation plate 31 and the rear wall surface of the exhaust box 30. The pipeline is located in the gap, and the pipeline runs through the preheating box 20 and extends into the cavity of the preheating box 20. In this scheme, a fan is arranged in the preheating box 20, and the fan is a duct fan. The gas in one of the exhaust boxes 30 is sucked into the preheating box 20 by the fan, and the gas enters the exhaust box 30 from the air inlet groove on the wall of the end plate 32 and impacts the evacuation plate 31. The smaller end surface of the evacuation plate 31 faces the end plate 32, and passes through the evacuation plate 31. The inclined surfaces on both sides of the plate 31 are dispersed into the space behind the evacuation plate 31. The gas enters the exhaust box 30 through the pipe, is heated by the thermocouple, and is sent to another exhaust box 30 for discharge, thereby realizing the circulation of hot air. The lateral exhaust method allows the top and bottom surfaces of the film passing through the cavity of the heating box 11 to be blown dry, thereby promoting the drying and degreasing effect. The one-row and one-suction method can recover the gas with residual temperature and heat it for reuse. Compared with the method of directly blowing hot air, it can reduce energy consumption and has better actual production effects. The pipe is placed on the back of the evacuation plate 31, and the air in front of the end plate 32 can be more evenly sucked into the pipe, thereby suppressing the turbulence caused by directly sucking in the gas through the pipe.

[0025] like Figure 5As shown, the drying structure also includes a first partition 21 and a second partition 22, both of which are fixedly connected to the preheating box 20, and the first partition 21 and the second partition 22 jointly divide the chamber of the preheating box 20 into three independent spaces, the fan is installed on the wall of the first partition 21, the thermocouple is installed in the chamber between the first partition 21 and the second partition 22, and the two exhaust boxes 30 are respectively connected to the chambers near the inner walls of both sides of the preheating box 20, and the preheating box is vented through the first partition 21 and the second partition 22. The two chambers are separated by 20, and the two pipes are respectively located in the chambers on both sides of the first partition plate 21 and the second partition plate 22 which are far away from each other. The gas is sucked in by the fan on the wall of the first partition plate 21 to realize air intake. The gas is discharged into the heating chamber between the first partition plate 21 and the second partition plate 22, and then passes through the notch opened on the top surface of the second partition plate 22 and is sent to the exhaust box 30 for exhaust through another pipe to realize gas circulation. The circulating gas needs to pass through the heating chamber between the first partition plate 21 and the second partition plate 22 to ensure that the gas is fully heated.

[0026] like Figure 5 As shown, the drying structure also includes an air guide plate 23 and a socket 24. A plurality of identical air guide plates 23 are fixedly connected to the walls on both sides of the preheating box 20. A plurality of identical sockets 24 are provided on the wall of each air guide plate 23. The thermocouple is inserted into the socket 24. The air guide plate 23 forms a plate having the same height as the chamber of the preheating box 20. The length of the air guide plate 23 is less than the width of the chamber of the preheating box 20. A plurality of air guide plates 23 are equidistantly arranged on the inner walls on both sides of the opposite sides of the preheating box 20. By arranging the air guide plates 23, the heating chamber is separated by the air guide plates 23 to form a serpentine curved channel. The circulating gas flows through the heating chamber to form a serpentine curved flow trajectory, which can increase the contact time between the gas and the air guide plates 23, ensure the contact area between the air and the thermocouple in the socket 24, and improve the heating effect on the gas.

[0027] The working principle of the utility model is as follows: the gas in one of the exhaust boxes 30 is sucked into the preheating box 20 through the fan, the gas enters the exhaust box 30 from the air inlet groove on the wall of the end plate 32 and impacts the evacuation plate 31, the smaller end face of the evacuation plate 31 faces the end plate 32, and enters the space behind the evacuation plate 31 through the inclined surfaces on both sides of the evacuation plate 31, and the gas is discharged into the heating chamber between the first partition plate 21 and the second partition plate 22, and then passes through the notch opened on the top surface of the second partition plate 22 and another pipe into the exhaust box 30 for exhaust, so as to realize the circulation of hot air, and the heating chamber is divided by the air guide plate 23 to form a serpentine curved channel, and the circulating gas flows through the heating chamber to form a serpentine curved flow trajectory, which can increase the contact time between the gas and the air guide plate 23, and ensure that the air is fully heated.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A PTFE degreasing device, comprising a frame (10), a wall surface of the frame (10) is provided with a plurality of rollers for guiding, a top surface of the frame (10) is provided with a heating box (11), and a film passes through the heating box (11) to be dried, characterized in that: The wall surface of the heating box (11) is provided with a drying structure for heating the film, and the drying structure includes a preheating box (20), an exhaust box (30), an evacuation plate (31) and an end plate (32). The preheating box (20) and the exhaust box (30) are both fixedly connected to the heating box (11). The preheating box (20) and the exhaust box (30) are both hollow structures. A fan and a thermocouple are provided in the preheating box (20). Two exhaust boxes (30) are symmetrically arranged on the wall surface of the heating box (11). The two exhaust boxes (30) are both connected to the preheating box (20). The two exhaust boxes (30) are used for exhaust and return air respectively. The cavity of each exhaust box (30) is fixedly connected to the same evacuation plate (31). The end surface of each exhaust box (30) is fixedly connected to an end plate (32). The end plate (32) forms a grid structure.

2. The PTFE degreasing device according to claim 1, characterized in that: The drying structure further comprises a first partition (21) and a second partition (22), wherein the first partition (21) and the second partition (22) are both fixedly connected to the preheating box (20), and the first partition (21) and the second partition (22) together divide the chamber of the preheating box (20) into three independent spaces, the fan is installed on the wall surface of the first partition (21), the thermocouple is installed in the chamber between the first partition (21) and the second partition (22), and the two exhaust boxes (30) are respectively connected to the chambers close to the inner wall surfaces on both sides of the preheating box (20).

3. The PTFE degreasing device according to claim 2, characterized in that: The preheating box (20) forms a box structure with an open top, a sealing cover is provided on the top surface of the preheating box (20), and the sealing cover is locked with the preheating box (20) by bolts, the preheating box (20) and the first partition (21) form a plate with the same height and width as the chamber of the preheating box (20), and a notch is provided on the top surface of the second partition (22) for connecting the chambers on both sides of the second partition (22).

4. The PTFE degreasing device according to claim 2, characterized in that: The drying structure further comprises an air guide plate (23) and a socket (24); a plurality of identical air guide plates (23) are fixedly connected to the wall surfaces on both sides of the preheating box (20); a plurality of identical sockets (24) are provided on the wall surface of each air guide plate (23); and the thermocouple is inserted into the socket (24).

5. The PTFE degreasing device according to claim 4, characterized in that: The air guide plate (23) is formed as a plate having the same height as the chamber of the preheating box (20), the length of the air guide plate (23) is smaller than the width of the chamber of the preheating box (20), and a plurality of air guide plates (23) are equidistantly arranged on the inner wall surfaces on two opposite sides of the preheating box (20).

6. The PTFE degreasing device according to claim 1, characterized in that: The exhaust box (30) forms a box body with an opening on the side wall. The openings of the two exhaust boxes (30) are arranged opposite to each other. The end plate (32) is adapted to the exhaust box (30). The wall surface of the end plate (32) is evenly provided with a plurality of air inlet grooves. The end plate (32) forms a grid structure through the air inlet grooves.

7. The PTFE degreasing device according to claim 1, characterized in that: The evacuation plate (31) is formed into a plate with a trapezoidal horizontal cross-section. The evacuation plate (31) is at the same height as the exhaust box (30) chamber. The upper and lower ends of the evacuation plate (31) are respectively fixedly connected to the top surface and the bottom surface of the exhaust box (30). A gap is left between the two side walls of the evacuation plate (31) and the inner wall surface of the exhaust box (30). A pipeline is fixedly connected to the top surface of the exhaust box (30). A gap is left between the back surface of the evacuation plate (31) and the rear wall surface of the exhaust box (30). The pipeline is located in the gap. The pipeline passes through the preheating box (20) and extends into the cavity of the preheating box (20).

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