Device suitable for removing oil from rim charges
By combining multi-roller pressing and extraction mechanisms, the problem of excessive oil content in diaphragm edge material was solved, achieving separation of dry film and oil film, and improving the quality and economic benefits of recycled materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-20
AI Technical Summary
During the diaphragm production process, the high oil content in the edge material during collection makes subsequent recycling and granulation difficult, and the dry film and oil film are difficult to separate, affecting cost reduction and efficiency improvement.
A multi-roller pressing mechanism is adopted. By setting the gradually decreasing gap between the rollers and the heating function, the edge material is pressed into a thin sheet. The paraffin oil is removed by the extraction mechanism, and finally the oil-containing part is removed by the cutting part, so as to achieve the separation of dry film and oil film.
It effectively reduces the oil content of scrap materials, improves the quality and value of recycled materials, and achieves cost reduction and efficiency improvement.
Smart Images
Figure CN224015025U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to an oil removing device, in particular to an oil removing device for lithium battery diaphragm casting piece, belongs to lithium battery diaphragm production technical field. BACKGROUND
[0002] In the diaphragm production process, the edge material of the diaphragm casting piece is the melt mixed by PE and paraffin oil, which is formed into a casting piece by an extruder, and then stretched, extracted and heat set before being wound up. However, during the edge material collection process of the casting piece and the winding part, the oil content of the edge material is too high, which makes the subsequent recycling and granulation process very difficult, or the customers who directly sell the edge material and have a demand for oil film are less, which is not conducive to cost reduction and efficiency improvement.
[0003] In addition, the dry film and the oil film are mixed together during the collection of the winding section edge material, which increases the difficulty of subsequent granulation or sale. Therefore, how to remove paraffin oil from the edge material, separate the dry film from the oil film, and improve the film state during edge material collection are the urgent needs in the field. SUMMARY
[0004] Based on the limitations of the above technical means, the main purpose of the utility model is to provide a device suitable for edge material oil removal, which can improve the problem of too high oil content in the edge material during casting and winding, facilitate subsequent recycling and granulation, and achieve the purpose of reducing the oil content of the particles.
[0005] To achieve the above purpose, the utility model adopts the following technical features:
[0006] A device suitable for edge material oil removal, comprising:
[0007] a rolling mechanism comprising a feed inlet; and
[0008] a winding mechanism connected to one side of the rolling mechanism away from the feed inlet;
[0009] The device is characterized in that the rolling mechanism comprises a plurality of roller groups, each roller group is composed of at least two upper and lower transmission rollers, and a nip is provided between the upper and lower transmission rollers; wherein the distance of the nip of each roller group decreases from the feed inlet to the winding mechanism.
[0010] In one embodiment, each roller group further comprises a pressurizer, and each pressurizer is independently actuated.
[0011] In one embodiment, the temperature of each roller group can be selectively adjusted.
[0012] As a further preferred embodiment, the temperature ranges from 60 to 200 ℃.
[0013] A preferred embodiment wherein said drive rollers of any said roller set are of the same or different diameters as said drive rollers of another said roller set.
[0014] A preferred embodiment wherein said nip gap is between 10 μm and 400 μm.
[0015] A preferred embodiment wherein said winding mechanism further comprises a cutting member.
[0016] A preferred embodiment wherein said roller press mechanism further comprises a feeding mechanism on a side thereof distal from said winding mechanism, said feeding mechanism being connected to said roller press mechanism via a feeding port.
[0017] A preferred embodiment wherein said roller press mechanism further comprises an extraction mechanism on a side thereof distal from said feeding port.
[0018] A preferred embodiment wherein said extraction mechanism further comprises a heating mechanism on a side thereof distal from said roller press mechanism.
[0019] The edge material oil removal device provided by the utility model, through setting multiple roller sets with heating function, and setting a gradually smaller nip gap between each roller set, the input edge material is rolled to be thinner to facilitate the full operation of the rear end extraction mechanism, and the cutter provided by the final winding mechanism can cut off the oil-containing part of the edge material, solving the problem of too high oil content of the edge material. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is a structural schematic view of an edge material oil removal device of the utility model.
[0021] Figure 2 is a structural schematic view of another edge material oil removal device of the utility model.
[0022] Figure 3 is a cutting position schematic view of the cutting member on the oil-containing edge material of the utility model.
[0023] Explanation of reference numerals in the schematic view: 1, feeding mechanism; 2, roller press mechanism; 2a, first roller set; 2b, second roller set; 2c, third roller set; 2n, any number of roller sets; 3, extraction mechanism; 4, heating mechanism; 5, winding mechanism; 5a, cutting member; 5b, cutting position of the cutting member; 6, oil-containing edge material; 7a, first nip gap; 7b, second nip gap; 7c, third nip gap. DETAILED DESCRIPTION
[0024] The specific embodiments of the utility model are described below by means of several examples with reference to the drawings, please see Figures 1 to 3 .
[0025] Example 1
[0026] The battery separator edge material oil removal device provided by the utility model has the advantages that the oil removal device is convenient to operate and can achieve the purposes of cost reduction and efficiency increase. Figure 1 As shown in the figure, the battery separator edge material oil removal device comprises a feeding mechanism 1, a roller pressing mechanism 2, an extraction mechanism 3, a heating mechanism 4 and a winding mechanism 5. The roller pressing mechanism 2 comprises a feeding port, a first roller group 2a, a second roller group 2b and a third roller group 2c. Each roller group is composed of two transmission rollers arranged in an upper and lower mode, and the diameters of the transmission rollers are the same. Each roller group is provided with a bearing roller gap, and the bearing roller gap gradually decreases from the first bearing roller gap 7a to the second bearing roller gap 7b and the third bearing roller gap 7c. The first bearing roller gap 7a is less than 400 μm, and the third bearing roller gap 7c is less than 100 μm. The feeding mechanism 1 is used for inputting film casting or oil-containing edge material 6 to the roller pressing mechanism 2. After the edge material enters the roller pressing mechanism 2, the edge material is heated and simultaneously roller pressed through the first roller group 2a, and then sequentially heated and roller pressed through the second roller group 2b and the third roller group 2c to be less than 100 μm. This size helps to completely remove or retain a small amount of paraffin oil on the edge material after entering the extraction device 3. The edge material extracted through the extraction device 3 is introduced into the heating device 4 to be heat set in the range of 60 ℃ to 200 ℃. The heating device 4 is an oven. Finally, the heat-set edge material is sent to the winding device 5 for winding. The winding device 5 is provided with a cutting member 5a, i.e., a cutter. When the edge material is wound, the cutter 5a cuts the edge material at the cutter cutting position to remove the oil-containing part and trim the edge material, so that the wound edge material can be directly sold or pelletized and recycled. Figure 3 As shown in the figure, the oil removal device is convenient to operate and can achieve the purposes of cost reduction and efficiency increase.
[0027] Example 2
[0028] Another battery separator edge material oil removal device provided by the utility model is shown in the figure. Figure 1As shown, comprising a feeding mechanism 1, a rolling mechanism 2, an extraction mechanism 3, a heating mechanism 4 and a winding mechanism 5, the rolling mechanism 2 comprises a feeding port, a first roller group 2a, a second roller group 2b, a third roller group 2c and a plurality of roller groups 2n between the second roller group 2b and the third roller group 2c, each roller group is composed of two driving rollers and the driving rollers have the same diameter, wherein each roller group is provided with a nip, and the nip gradually decreases from the first nip 7a to the second nip 7b and the third nip 7c; wherein the first nip 7a is less than 400 μm, and the third nip 7c is less than 100 μm. The feeding mechanism 1 is used to input the film casting or oil-containing edge material 6 to the rolling mechanism 2. After the edge material enters the rolling mechanism 2, it is heated and rolled by the first roller group 2a, and then sequentially heated and rolled by the second roller group 2b, the plurality of roller groups 2n and the third roller group 2c to roll the edge material to less than 100 μm, which helps to completely remove or leave a small amount of paraffin oil on the edge material after entering the extraction device 3. The edge material extracted by the extraction device 3 is introduced into the heating device 4 for heat setting at a temperature of 60-200 ℃, wherein the heating device 4 is an oven, and finally the heat-set edge material is sent to the winding device 5 for winding, wherein the winding device 5 has a cutting member 5a, which is a cutter, and the cutter 5a cuts the edge material at the cutting position to remove the oil-containing part and trim the edge material, so that the wound edge material can be directly sold or granulated and recycled. Figure 3 As shown, convenient operation can also achieve the purpose of reducing cost and increasing efficiency.
[0029] Example 3
[0030] Another battery separator edge oil removal device provided by the utility model is as shown Figure 2As shown, comprising a feeding mechanism 1, a rolling mechanism 2, an extraction mechanism 3, a heating mechanism 4 and a winding mechanism 5, the rolling mechanism 2 comprises a feeding port, a first roller group 2a, a second roller group 2b, a third roller group 2c and a plurality of roller groups 2n between the second roller group 2b and the third roller group 2c, wherein each roller group is composed of two driving rollers, the driving rollers of one roller group and the driving rollers of another roller group are different in size, and the driving rollers of each roller group can be arranged in order from small to large or in order from large to small, and each roller group is provided with a nip, and the nip gradually decreases from the first nip 7a to the second nip 7b and the third nip 7c. The first nip 7a is less than 400 μm, and the third nip 7c is less than 100 μm. The feeding mechanism 1 is used to input the film casting or oil-containing edge material 6 to the rolling mechanism 2. After the edge material enters the rolling mechanism 2, it is heated and rolled by the first roller group 2a, and then sequentially heated and rolled by the second roller group 2b and the third roller group 2c to roll the edge material to less than 100 μm, which helps to completely remove or leave a small amount of paraffin oil on the edge material after entering the extraction device 3. The edge material extracted by the extraction device 3 is introduced into the heating device 4 for heat setting at a temperature of 60-200 ℃, wherein the heating device 4 is an oven, and finally the heat-set edge material is sent to the winding device 5 for winding, wherein the winding device 5 has a cutting member 5a, which is a cutter 5a. When the edge material is wound, the cutter 5a cuts the edge material at the cutter cutting position to remove the oil-containing part and trim the edge material, so that the wound edge material can be directly sold or granulated and recycled, such as Figure 3 As shown, convenient operation can also achieve the purpose of reducing cost and increasing efficiency.
[0031] Example 4
[0032] Another battery separator edge material oil removal device provided by the utility model is shown as Figure 1As shown, comprising a feeding mechanism 1, a rolling mechanism 2, an extraction mechanism 3, a heating mechanism 4 and a winding mechanism 5, the rolling mechanism 2 comprises a feeding port, a first roller group 2a, a second roller group 2b, a third roller group 2c and a plurality of roller groups 2n between the second roller group 2b and the third roller group 2c, each roller group is composed of two driving rollers and the driving rollers have the same diameter, wherein each roller group is provided with a nip, and the nip gradually decreases from the first nip 7a to the second nip 7b and the third nip 7c; wherein the first nip 7a is less than 400 μm, and the third nip 7c is less than 100 μm. The feeding mechanism 1 is used to input the film casting or oil-containing edge material 6 to the rolling mechanism 2. After the edge material enters the rolling mechanism 2, it is heated and rolled by the first roller group 2a, and then sequentially heated and rolled by the second roller group 2b, the plurality of roller groups 2n and the third roller group 2c to roll the edge material to less than 100 μm, which helps to completely remove or leave a small amount of paraffin oil on the edge material after entering the extraction device 3; wherein when the oil-containing edge material 6 enters the rolling mechanism, the pressurizer actuates the first roller group 2a to apply greater pressure for rolling. The edge material extracted by the extraction device 3 is introduced into the heating device 4 for heat setting at a temperature of 60-200 ℃, wherein the heating device 4 is an oven, and finally the heat-set edge material is sent to the winding device 5 for winding, wherein the winding device 5 has a cutting member 5a, which is a cutter 5a. When the edge material is wound, the cutter 5a cuts the edge material at the cutter cutting position to remove the oil-containing part and trim the edge material, so that the wound edge material can be directly sold or granulated and recycled, such as Figure 3 As shown, convenient operation can also achieve the purpose of reducing cost and increasing efficiency.
[0033] Example 5
[0034] Another battery separator edge material oil removal device provided by the utility model is as shown in Figure 1As shown, comprising a feeding mechanism 1, a rolling mechanism 2, an extraction mechanism 3, a heating mechanism 4 and a winding mechanism 5, the rolling mechanism 2 comprises a feeding port, a first roller group 2a, a second roller group 2b, a third roller group 2c and a plurality of roller groups 2n between the second roller group 2b and the third roller group 2c, each roller group is composed of two driving rollers and the driving rollers have the same diameter, wherein each roller group is provided with a nip, and the nip gradually decreases from the first nip 7a to the second nip 7b and the third nip 7c; wherein the first nip 7a is less than 400 μm, and the third nip 7c is less than 100 μm. The feeding mechanism 1 is used to input the film casting or oil-containing edge material 6 to the rolling mechanism 2. After the edge material enters the rolling mechanism 2, it is heated and rolled by the first roller group 2a, and then sequentially heated and rolled by the second roller group 2b, the plurality of roller groups 2n and the third roller group 2c to less than 100 μm, which helps to completely remove or leave a small amount of paraffin oil on the edge material after entering the extraction device 3; wherein when the oil-containing edge material 6 enters the rolling mechanism, the pressurizer acts on the first roller group 2a and the third roller group 2c, so that the first roller group 2a and the third roller group 2c can apply greater pressure for rolling. The edge material extracted by the extraction device 3 is introduced into the heating device 4 for heat setting in the range of 60-200℃, wherein the heating device 4 is an oven, and finally the heat-set edge material is sent to the winding device 5 for winding, wherein the winding device 5 has a cutting member 5a, which is a cutter 5a. When the edge material is wound, the cutter 5a cuts the edge material at the cutter cutting position to remove the oil-containing part and trim the edge material, so that the wound edge material can be directly sold or pelletized and recycled. Figure 3 As shown, convenient operation can also achieve the purpose of reducing cost and increasing efficiency.
[0035] Example 6
[0036] Another battery separator edge material oil removal device provided by the utility model is shown as Figure 2As shown, the device comprises a feeding mechanism 1, a rolling mechanism 2, an extraction mechanism 3, a heating mechanism 4, and a winding mechanism 5. The rolling mechanism 2 comprises a feeding port, a first roller set 2a, a second roller set 2b, a third roller set 2c, and a plurality of roller sets 2n between the second roller set 2b and the third roller set 2c. Each roller set is composed of two driving rollers, and the driving rollers in different roller sets have different diameters. The diameters of the driving rollers in each roller set can be arranged in ascending or descending order. Each roller set is provided with a nip, and the nips gradually decrease from the first nip 7a to the second nip 7b and the third nip 7c. The first nip 7a is less than 400 μm, and the third nip 7c is less than 100 μm. The feeding mechanism 1 is used to input the film casting or oil-containing edge material 6 into the rolling mechanism 2. After the edge material enters the rolling mechanism 2, it is heated and rolled by the first roller set 2a, and then sequentially heated and rolled by the second roller set 2b, the plurality of roller sets 2n, and the third roller set 2c to a size less than 100 μm, which helps to completely remove or retain a small amount of paraffin oil on the edge material after entering the extraction device 3. When the oil-containing edge material 6 enters the rolling mechanism, the presser actuates some or all of the second roller set 2b or the plurality of roller sets 2n, so that the second roller set 2b and the plurality of roller sets 2n can apply greater pressure for rolling. The edge material extracted by the extraction device 3 is introduced into the heating device 4 for heat setting at a temperature ranging from 60 ℃ to 200 ℃. The heating device 4 is an oven, and finally the heat-set edge material is sent to the winding device 5 for winding. The winding device 5 has a cutting member 5a, which is a cutter 5a. When the edge material is wound, the cutter 5a cuts the edge material at the cutter cutting position to remove the oil-containing part and trim the edge material, so that the wound edge material can be directly sold or pelletized and recycled. Figure 3 As shown, the device is convenient to operate and can achieve the purpose of reducing costs and increasing efficiency.
[0037] The battery separator edge material oil removal device provided by the present application extracts the originally oil-containing edge material into dry film without oil or with very low oil content, which is convenient for subsequent further recycling or direct sale. After recycling, the particle quality is higher, and it can be used more safely. Selling dry film or dry particles is also more valuable than oil-containing ones.
[0038] The above content related to common knowledge is not described in detail, and those skilled in the art can understand it.
[0039] The above-described embodiments are merely illustrative for the principles and effects of the present application, and are not intended to limit the present application. Any modification or change to the above-described embodiments can be made by any person skilled in the art without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.
Claims
1. An apparatus for degreasing edge materials, comprising: Roller pressing mechanism, including feed inlet; and A winding mechanism is connected to the side of the roller pressing mechanism away from the feed inlet; The device is characterized in that: the roller pressing mechanism comprises multiple roller groups, each roller group consisting of at least two upper and lower drive rollers, and a roller gap is provided between the upper and lower drive rollers; wherein... The distance between the rollers in each roller group decreases from the feed inlet toward the winding mechanism.
2. The apparatus according to claim 1, characterized in that: Each roller assembly also includes a pressure unit, and each pressure unit operates independently.
3. The apparatus according to claim 1, characterized in that: The temperature of each roller assembly can be selectively adjusted.
4. The apparatus according to claim 3, characterized in that: The temperature range is between 60 °C and 200 °C.
5. The apparatus according to claim 1, characterized in that: The drive roller of any one of the roller groups has the same or different diameter from the drive roller of the other roller group.
6. The apparatus according to claim 1, characterized in that: The gap between the rollers is between 10 μm and 400 μm.
7. The apparatus according to claim 1, characterized in that: The winding mechanism also includes a cutting component.
8. The apparatus according to claim 1, characterized in that: The roller pressing mechanism also includes a feeding mechanism on the side away from the winding mechanism, which is connected to the roller pressing mechanism through a feeding port.
9. The apparatus according to claim 1, characterized in that: An extraction mechanism is also included between the rolling mechanism and the winding mechanism, connected to the side of the rolling mechanism away from the feed inlet.
10. The apparatus according to claim 9, characterized in that: A heating mechanism is also included between the extraction mechanism and the winding mechanism, connected to the side of the extraction mechanism away from the rolling mechanism.