Wide AEM anion exchange membrane production equipment

Abstract

The invention discloses wide-width AEM anion exchange membrane production equipment which comprises a double-deviation-correction unwinding system, a composite blade coating system is arranged on one side of the double-deviation-correction unwinding system, and a drying oven drying system is arranged on one side of the composite blade coating system.The wide-width AEM anion exchange membrane production equipment adopts a blade coating mode, so that the production efficiency is improved; the slurry is good in applicability, and the requirement on the viscosity of the slurry is not high; according to the equipment, before coating, a net-shaped reinforcing film enters a soaking tank to be soaked, so that holes are filled with slurry, then redundant slurry is extruded out and compounded with a base film, and finally coating is conducted, so that the surface of a coating is free of holes, and the uniformity is good; according to the equipment, the double-deviation-rectifying unwinding mechanism is adopted, two different materials are integrated on one unwinding mechanism, the structure is compact, feeding and discharging are convenient, and meanwhile the deviation rectifying precision of the two materials is guaranteed; the infiltration tank adopts a quick-release mechanism, so that the cleaning is convenient, and the repeated precision is good.

Description

Technical Field

[0001] This invention relates to the field of AEM anion exchange membrane production technology, specifically to a wide-width AEM anion exchange membrane production equipment. Background Technology

[0002] An atomizing membrane (AEM) is a core component in water electrolysis for hydrogen production and fuel cells, responsible for conducting hydroxide ions and isolating hydrogen and oxygen. In water electrolysis for hydrogen production, AEM technology has the advantages of low cost, fast start-up and shutdown, and low energy consumption. It combines ease of operation when coupled with renewable energy sources with current and efficiency comparable to a proton exchange membrane (PEM).

[0003] However, traditional AEM production has the following drawbacks:

[0004] However, there are few production equipment available on the market for wide-width AEM anion exchange membranes. Some production equipment requires the use of special viscous slurry to complete the production, which increases the difficulty of AEM membrane production. Summary of the Invention

[0005] The purpose of this invention is to provide a wide-width AEM anion exchange membrane production equipment to solve the problem mentioned in the background art that there is a scarcity of wide-width AEM anion exchange membrane production equipment on the market, and that some production equipment requires the use of special viscous slurry to complete the production, which increases the difficulty of AEM membrane production.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wide-width AEM anion exchange membrane production equipment, comprising a dual-axis correction unwinding system, a composite doctor blade coating system on one side of the dual-axis correction unwinding system, an oven drying system on one side of the composite doctor blade coating system, a correction traction system on one side of the oven drying system, and a winding system on one side of the correction traction system. The dual-axis correction unwinding system includes an offset unwinding frame and a PPS membrane unwinding assembly. The top end of one side of the offset unwinding frame is rotatably connected to one end of the PPS membrane unwinding assembly, and the bottom end of one side of the PPS membrane unwinding assembly is rotatably connected to a base film unwinding assembly.

[0007] Preferably, a first web guiding actuator is fixedly installed on one side of the PPS film unwinding assembly on the unwinding frame. A first web guiding sensor is fixedly installed on the unwinding frame above the first web guiding actuator. A first transmission system is rotatably installed on the unwinding frame and located on the first web guiding actuator. The first transmission system includes a first connecting roller, a first transition roller, a first tension roller, and a first transmission roller. PPS film is driven between the first connecting roller and the first transition roller, between the first transition roller and the first tension roller, and between the first tension roller and the first transmission roller. One end of the first connecting roller is rotatably connected to the unwinding frame. One end of the first transition roller, one end of the first tension roller, and one end of the first transmission roller are all rotatably connected to the double web guiding unwinding frame.

[0008] Preferably, a second correction sensor is fixedly installed on the unwinding frame above the base film unwinding assembly, and a second correction pusher is fixedly installed on the unwinding frame on one side of the base film unwinding assembly. A second transmission system located on the second correction pusher is rotatably connected to the unwinding frame. The second transmission system includes a second connecting roller, a second transition roller, a second tension roller, and a second transmission roller. The base film body is drivenly connected between the second connecting roller and the second transition roller, between the second transition roller and the second tension roller, and between the second tension roller and the second transmission roller. One end of the second connecting roller is rotatably connected to the side of the unwinding frame facing the unwinding frame. One end of the second transition roller, one end of the second tension roller, and one end of the second transmission roller are all rotatably connected to the side of the double correction unwinding frame facing the unwinding frame.

[0009] Preferably, the composite doctor blade coating system includes a coating frame and a reference drive roller. The bottom end of one side of the coating frame is rotatably connected to one end of the reference drive roller. The top end of one side of the coating frame is rotatably connected to an extrusion lamination mechanism. A doctor blade coating assembly located on one side of the extrusion lamination mechanism is rotatably connected to the coating frame. An impregnation mechanism located below the extrusion lamination mechanism is fixedly installed on the coating frame. The impregnation mechanism includes an impregnation tank and two guide rollers located in the impregnation tank. The extrusion lamination mechanism includes an extrusion composite roller that contacts the doctor blade coating assembly. An extrusion sleeve is fitted on the surface of the extrusion composite roller.

[0010] Preferably, the correction traction system includes a traction frame and a traction roller. The bottom end of one side of the traction frame is rotatably connected to one end of the traction roller. A floating tension roller is rotatably connected to the middle of one side of the traction frame. A flattening roller is rotatably connected to the top end of one side of the traction frame.

[0011] Preferably, a path correction device located on one side of the flattening roller is fixedly installed on the traction frame.

[0012] Preferably, the winding system includes a winding frame and a winding shaft, with one side of the winding frame rotatably connected to one end of the winding shaft.

[0013] Preferably, a winding guide located below the winding shaft is fixedly installed on the winding frame.

[0014] Preferably, the oven drying system includes an oven frame and a hot air blower. The bottom end of the inner wall of the oven frame is fixedly connected to the bottom end of the hot air blower. The air inlet of the hot air blower is fixedly connected to an air inlet pipe, and the air outlet of the hot air blower is fixedly connected to a hot air pipe.

[0015] Preferably, a drying plate is fixedly installed at the top of the oven frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The equipment uses a doctor blade coating method, which has good applicability to slurries and does not have high requirements for slurry viscosity;

[0018] 2. Before coating, the equipment first puts the mesh-like reinforcing film into the immersion tank for immersion treatment, so that the slurry fills the pores. Then, the excess slurry is squeezed out, and then it is laminated with the base film. Finally, the coating is applied, so that the coating surface is free of pores and has good uniformity.

[0019] 3. The equipment adopts a dual-correction unwinding mechanism, which integrates two different materials into one unwinding device. The structure is compact, which facilitates loading and unloading, and at the same time ensures the correction accuracy of the two materials.

[0020] 4. The immersion tank adopts a quick-release mechanism, which not only facilitates cleaning but also ensures good repeatability. Attached Figure Description

[0021] Figure 1 This is a side view of the present invention;

[0022] Figure 2 This is a side view of the dual-axis correction unwinding system of the present invention;

[0023] Figure 3 This is a side view of the composite doctor blade coating system of the present invention;

[0024] Figure 4 This is a side view of the traction correction system of the present invention;

[0025] Figure 5 This is a side view of the winding system of the present invention.

[0026] Figure 6 This is a connection diagram of the first transmission component and the offset unwinding frame of the present invention;

[0027] Figure 7This is a connection diagram of the second transmission component and the offset unwinding frame of the present invention;

[0028] Figure 8 This is a side view of the oven drying system of the present invention.

[0029] In the diagram: 1. Dual-axis unwinding system; 101. First axis correction sensor; 102. First axis correction actuator; 103. PPS film unwinding assembly; 104. Second axis correction sensor; 105. Second axis correction actuator; 106. Base film unwinding assembly; 107. Axial unwinding frame; 108. First transmission system; 1081. First connecting roller; 1082. First transition roller; 1083. First tension roller; 1084. First transmission roller; 1085. PPS film; 109. Second transmission system; 1091. Second connecting roller; 1092. Second transition roller; 1093. Second tension roller 1094. Second transfer roller; 1095. Base film body; 2. Composite doctor blade coating system; 21. Coating frame; 22. Reference drive roller; 23. Impregnation mechanism; 24. Extrusion lamination mechanism; 25. Doctor blade coating assembly; 3. Oven drying system; 31. Oven frame; 32. Air inlet pipe; 33. Hot air blower; 34. Drying plate; 35. Hot air pipe; 4. Track correction traction system; 41. Traction frame; 42. Traction roller; 43. Floating tension roller; 44. Flattening roller; 45. Track correction device; 5. Rewinding system; 51. Rewinding frame; 52. Rewinding shaft; 53. Rewinding correction device. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] Please see Figure 1-8 This invention provides a wide-width AEM anion exchange membrane production equipment, including a dual-axis unwinding system 1, a composite doctor blade coating system 2 on one side of the dual-axis unwinding system 1, an oven drying system 3 on one side of the composite doctor blade coating system 2, a axis-aligning traction system 4 on one side of the oven drying system 3, and a winding system 5 on one side of the axis-aligning traction system 4. The dual-axis unwinding system 1 includes an axis-aligning unwinding frame 107 and a PPS membrane unwinding assembly 103. The top end of one side of the axis-aligning unwinding frame 107 is rotatably connected to one end of the PPS membrane unwinding assembly 103, and the bottom end of one side of the PPS membrane unwinding assembly 103 is rotatably connected to a base film unwinding assembly 106.

[0032] A first alignment pusher 102 located on one side of the PPS film unwinding assembly 103 is fixedly installed on the unwinding frame 107. A first alignment sensor 101 located above the first alignment pusher 102 is also fixedly installed on the unwinding frame 107. A first transmission system 108 located on the first alignment pusher 102 is rotatably installed on the unwinding frame 107. The first transmission system 108 includes a first connecting roller 1081 and a first transition roller. 1082, the first tensioning roller 1083 and the first transfer roller 1084, the first connecting roller 1081 and the first transition roller 1082, the first transition roller 1082 and the first tensioning roller 1083 and the first tensioning roller 1083 and the first transfer roller 1084 are all connected by a PPS film 1085. One end of the first connecting roller 1081 is rotatably connected to the unwinding frame 107. One end of the first transition roller 1082, one end of the first tensioning roller 1083 and one end of the first transfer roller 1084 are all rotatably connected to the double-alignment unwinding frame 107.

[0033] A second alignment sensor 104 is fixedly installed on the unwinding frame 107, located above the base film unwinding assembly 106. A second alignment pusher 105 is fixedly installed on one side of the base film unwinding assembly 106. A second transmission system 109 located on the second alignment pusher 105 is rotatably connected to the unwinding frame 107. The second transmission system 109 includes a second connecting roller 1091, a second transition roller 1092, a second tension roller 1093, and a second transmission roller 1094. The base film body 1095 is drivenly connected between the second connecting roller 1091 and the second transition roller 1092, between the second transition roller 1092 and the second tension roller 1093, and between the second tension roller 1093 and the second transmission roller 1094. One end of the second connecting roller 1091 is rotatably connected to the side of the unwinding frame 107 facing the axis. One end of the second transition roller 1092, one end of the second tension roller 1093, and one end of the second transmission roller 1094 are all rotatably connected to the side of the double-axis unwinding frame 107 facing the axis.

[0034] The composite blade coating system 2 includes a coating frame 21 and a reference drive roller 22. The bottom end of one side of the coating frame 21 is rotatably connected to one end of the reference drive roller 22. The top end of one side of the coating frame 21 is rotatably connected to an extrusion lamination mechanism 24. A blade coating assembly 25 located on one side of the extrusion lamination mechanism 24 is rotatably connected to the coating frame 21. An impregnation mechanism 23 located below the extrusion lamination mechanism 24 is fixedly installed on the coating frame 21. The impregnation mechanism 23 includes an impregnation tank and two guide rollers located in the impregnation tank. The extrusion lamination mechanism 24 includes an extrusion composite roller that contacts the blade coating assembly 25. An extrusion sleeve is fitted on the surface of the extrusion composite roller. The guide roller guides the film material and immerses the film material in the slurry tank. The extrusion sleeve is made of silicone or natural rubber, has a certain elasticity, and fits tightly with the blade coating assembly 25. The extrusion composite roller cooperates with the blade coating assembly 25 to extrude excess slurry, which is then laminated with the base film.

[0035] The correction traction system 4 includes a traction frame 41 and a traction roller 42. The bottom end of one side of the traction frame 41 is rotatably connected to one end of the traction roller 42. A floating tension roller 43 is rotatably connected to the middle of one side of the traction frame 41. A flattening roller 44 is rotatably connected to the top of one side of the traction frame 41.

[0036] A path correction device 45 located on one side of the flattening roller 44 is fixedly installed on the traction frame 41.

[0037] The winding system 5 includes a winding frame 51 and a winding shaft 52, with one side of the winding frame 51 rotatably connected to one end of the winding shaft 52.

[0038] A winding guide 53 is fixedly installed on the winding frame 51, located below the winding shaft 52.

[0039] The oven drying system 3 includes an oven frame 31 and a hot air blower 33. The bottom end of the inner wall of the oven frame 31 is fixedly connected to the bottom end of the hot air blower 33. The air inlet of the hot air blower 33 is fixedly connected to an air inlet pipe 32, and the air outlet of the hot air blower 33 is fixedly connected to a hot air pipe 35.

[0040] A drying plate 34 is fixedly installed on the top of the oven frame 31.

[0041] In this embodiment, the AEM anion exchange membrane wide-width coating machine is used to produce wide-width AEM anion exchange membranes, capable of producing up to 1500mm AEM anion exchange membranes. The coating method is doctor blade coating, employing a dual-tracking unwinding mechanism. Two different materials are simultaneously unwound, tracked, and tension-controlled. The mesh-like PPS membrane 1085 then enters the impregnation tank along with the guide rollers for impregnation, ensuring the slurry fills the pores. Excess slurry is then squeezed out, and the membrane is laminated with the base membrane. Finally, coating is performed, followed by drying in an oven. After being pulled out of the oven by the tracker, the finished product is finally wound up manually. The roll of PPS film 1085 and the base film are respectively fed onto the PPS film unwinding assembly 103 and the base film unwinding assembly 106. The dual-correction unwinding mechanism performs unwinding, correction, and tension control on the PPS film and the base film, ensuring smooth film operation. After the PPS film 1085 is unwound by the PPS film unwinding assembly 103, it is conveyed to the first transition roller 1082 via the first connecting roller 1081. The first correction pusher 102 between the first connecting roller 1081 and the first transition roller 1082 corrects the deviation of the PPS film 1085. After correction, the PPS film 1085 is passed through the first tension roller 1083. After being tensioned and supported, the base film 1095 is transferred to the next position via the first transfer roller 1084. After being unwound by the base film unwinding assembly 106, the base film 1095 is conveyed to the second transition roller 1092 via the second connecting roller 1091. The second correction pusher 105 between the second connecting roller 1091 and the second transition roller 1092 corrects the alignment of the base film 1095. After correction, the base film 1095 is tensioned and supported by the second tension roller 1093 and then transferred to the next position via the second transfer roller 1094. The PPS film 1085 enters the impregnation tank along with the guide roller, where the slurry will cover the PPS film 108. 5. Subsequently, the extrusion composite roller will squeeze out the excess slurry on the PPS film 1085 and press it to fill the holes on the mesh PPS film 1085, and then laminate it with the base film. Together, they are coated by the doctor blade coating assembly 25. After coating, the film comes out with the guide roller and enters the drying oven. After drying, the correction traction system 4 is used. Since the maximum width can reach 1500mm, it is easy to wrinkle. The flattening roller 44 can flatten it and prevent wrinkling. The path correction device 45 corrects the path, and the floating tension roller 43 controls the tension to make the material belt stable and without fluctuation. Finally, it enters the winding system 5 to complete the winding of the finished product.

[0042] 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 wide-width AEM anion exchange membrane production equipment, comprising a dual-axis correction and unwinding system (1), characterized in that: The dual-axis unwinding system (1) is provided with a composite doctor blade coating system (2) on one side, an oven drying system (3) on one side, an axis-correcting traction system (4) on one side, and a winding system (5) on one side. The dual-axis unwinding system (1) includes an axis-correcting unwinding frame (107) and a PPS film unwinding assembly (103). The top end of one side of the axis-correcting unwinding frame (107) is rotatably connected to one end of the PPS film unwinding assembly (103), and the bottom end of one side of the PPS film unwinding assembly (103) is rotatably connected to a base film unwinding assembly (106).

2. The wide-width AEM anion exchange membrane production equipment according to claim 1, characterized in that: A first alignment pusher (102) located on one side of the PPS film unwinding assembly (103) is fixedly installed on the unwinding frame (107). A first alignment sensor (101) located above the first alignment pusher (102) is fixedly installed on the unwinding frame (107). A first transmission system (108) located on the first alignment pusher (102) is rotatably installed on the unwinding frame (107). The first transmission system (108) is provided with a first connecting roller (1081), a first transition roller (1082), a first tensioning roller (1083), and a first transmission roller. (1084) PPS film (1085) is drivenly connected between the first connecting roller (1081) and the first transition roller (1082), between the first transition roller (1082) and the first tension roller (1083), and between the first tension roller (1083) and the first transmission roller (1084). One end of the first connecting roller (1081) is rotatably connected to the unwinding frame (107). One end of the first transition roller (1082), one end of the first tension roller (1083), and one end of the first transmission roller (1084) are all rotatably connected to the double-alignment unwinding frame (107).

3. The wide-width AEM anion exchange membrane production equipment according to claim 1, characterized in that: A second alignment sensor (104) is fixedly installed on the unwinding frame (107) above the base film unwinding assembly (106). A second alignment pusher (105) is fixedly installed on one side of the base film unwinding assembly (106). A second transmission system (109) located on the second alignment pusher (105) is rotatably connected to the unwinding frame (107). The second transmission system (109) is provided with a second connecting roller (1091), a second transition roller (1092), a second tension roller (1093), and a second transmission roller (1094). The base film body (1095) is drivenly connected between the second connecting roller (1091) and the second transition roller (1092), between the second transition roller (1092) and the second tension roller (1093), and between the second tension roller (1093) and the second transmission roller (1094). One end of the second connecting roller (1091) is rotatably connected to the side of the unwinding frame (107) facing the roller. One end of the second transition roller (1092), one end of the second tension roller (1093), and one end of the second transmission roller (1094) are all rotatably connected to the side of the double-alignment unwinding frame (107).

4. The wide-width AEM anion exchange membrane production equipment according to claim 1, characterized in that: The composite doctor blade coating system (2) includes a coating frame (21) and a reference drive roller (22). The bottom end of one side of the coating frame (21) is rotatably connected to one end of the reference drive roller (22). The top end of one side of the coating frame (21) is rotatably connected to an extrusion bonding mechanism (24). A doctor blade coating assembly (25) located on one side of the extrusion bonding mechanism (24) is rotatably connected to the coating frame (21). An impregnation mechanism (23) located below the extrusion bonding mechanism (24) is fixedly installed on the coating frame (21). The impregnation mechanism (23) includes an impregnation tank and two guide rollers located in the impregnation tank. The extrusion bonding mechanism (24) includes an extrusion composite roller that contacts the doctor blade coating assembly (25). An extrusion sleeve is fitted on the surface of the extrusion composite roller.

5. The wide-width AEM anion exchange membrane production equipment according to claim 1, characterized in that: The correction traction system (4) includes a traction frame (41) and a traction roller (42). The bottom end of one side of the traction frame (41) is rotatably connected to one end of the traction roller (42). A floating tension roller (43) is rotatably connected to the middle of one side of the traction frame (41). A flattening roller (44) is rotatably connected to the top of one side of the traction frame (41).

6. The wide-width AEM anion exchange membrane production equipment according to claim 5, characterized in that: A path correction device (45) located on one side of the flattening roller (44) is fixedly installed on the traction frame (41).

7. The wide-width AEM anion exchange membrane production equipment according to claim 1, characterized in that: The winding system (5) includes a winding frame (51) and a winding shaft (52), one side of the winding frame (51) being rotatably connected to one end of the winding shaft (52).

8. The wide-width AEM anion exchange membrane production equipment according to claim 7, characterized in that: A winding guide (53) located below the winding shaft (52) is fixedly installed on the winding frame (51).

9. The wide-width AEM anion exchange membrane production equipment according to claim 1, characterized in that: The oven drying system (3) includes an oven frame (31) and a hot air blower (33). The bottom end of the inner wall of the oven frame (31) is fixedly connected to the bottom end of the hot air blower (33). The air inlet of the hot air blower (33) is fixedly connected to an air inlet pipe (32), and the air outlet of the hot air blower (33) is fixedly connected to a hot air pipe (35).

10. A wide-width AEM anion exchange membrane production equipment according to claim 9, characterized in that: A drying plate (34) is fixedly installed at the top of the oven frame (31).

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