Battery slurry drying device

Abstract

The utility model discloses a battery slurry drying device. The battery slurry drying device comprises at least one drying unit, and each drying unit comprises a box body, a supporting part and a heating part. An accommodating space is formed in the box body; a part of the supporting part is located in the accommodating space, and the upper surface of the supporting part is provided with a slurry coating surface which is used for coating battery slurry; the heating parts are arranged in the containing space, the heating parts are arranged on the two sides of the supporting part in the height direction of the box body and used for heating battery slurry, and air suction holes are formed in the surfaces, facing the supporting part, of the heating parts. The heating parts are arranged on the two sides of the supporting part, and the air suction holes are formed in the surfaces, facing the supporting part, of the heating parts, so that steam generated by evaporation can be sucked away in time while battery slurry is heated to promote evaporation of a solvent in a solution. As the steam is absorbed and removed in time, the possibility that the steam accumulates in the drying unit to form an adverse atmosphere to influence solution crystallization is reduced, and the crystallization effect is improved.

Description

TECHNICAL FIELD

[0001] The application relates to a drying device, in particular to a battery slurry drying device. BACKGROUND

[0002] When the performance of the active material layer on the surface of the pole piece of a battery is studied, slurry with different material component proportions needs to be prepared, and the slurry with different material proportions is dried by using a drying device to evaporate and crystallize the solvent in the slurry. During the drying process, the current problem is that the atmosphere formed after the solvent is evaporated affects the crystallization of the solute in the slurry, resulting in an unsatisfactory drying effect and affecting the subsequent experimental study. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems, the application provides a battery slurry drying device which can remove the solvent evaporated around the slurry during the drying process, reduce the influence on the crystallization of the solute, and improve the drying effect.

[0004] In a first aspect, the application provides a battery slurry drying device, which comprises at least one drying unit, and the drying unit comprises:

[0005] A box body, the inside of the box body has a containing space;

[0006] A support component, part of the support component is located in the containing space, and the support component comprises a heat conduction member, the upper surface of the heat conduction member has a slurry coating surface, and the slurry coating surface is used for coating battery slurry;

[0007] A heating member is arranged in the containing space, and the two sides of the heat conduction member are respectively provided with the heating member along the height direction of the box body. The heating member is used for heating the battery slurry. The surface of the heating member facing the support component is provided with an air suction hole. The inside of the heating member is provided with an air duct. The air suction hole is in communication with the air duct. The box body is provided with an air outlet in communication with the air duct.

[0008] By arranging the heating member on both sides of the support component, the heat generated by the heating member on both sides of the heat conduction member acts on the heat conduction member. The surface of the heating member facing the support component is provided with an air suction hole. While heating the battery slurry to evaporate the solvent in the solution, the generated steam can be timely sucked away. Since the evaporated solvent is timely removed, the possibility of accumulation of the solvent in the drying unit to form an unfavorable atmosphere affecting the crystallization of the solution is reduced, and the crystallization effect is improved.

[0009] In some embodiments, in the same heating member, the number of air suction holes is multiple, and the multiple air suction holes are arranged at intervals and in communication with the air duct.

[0010] The multiple spaced suction holes can absorb the steam generated by evaporation in a larger area range compared to a single suction hole. During the drying process, steam is emitted from various parts of the battery slurry. The multiple spaced suction holes can more comprehensively cover the steam generation sources, timely and efficiently suck the steam into the air duct, further reduce the accumulation of steam inside the drying unit, make the evaporation atmosphere of the solution more stable and conducive to crystallization, and maximize the avoidance of abnormal crystallization caused by steam accumulation, thereby ensuring the quality of the dried product.

[0011] In some embodiments, in the same heating element, the suction holes have multiple rows, and each row of suction holes is communicated with an air duct.

[0012] In this way, the area of the suction area around the battery slurry can be increased to reduce the influence of evaporated substances on crystallization, and the drying rate of the battery slurry can be improved.

[0013] In some embodiments, in the same row of suction holes, along the air outlet direction of the air duct, the area difference between any two adjacent suction holes is in the range of 2mm 2 -44mm 2 .

[0014] If the areas of the multiple suction holes are the same, due to the frictional resistance between the fluid and the air duct, pressure loss will occur in the air duct, resulting in different flow rates of different suction holes and different air flow rates in different areas of the battery slurry. On the one hand, the drying rate of the battery slurry is affected, and on the other hand, the uniformity of the crystallized battery slurry is poor. Therefore, along the air outlet direction of the air duct, the area difference between any two adjacent suction holes is in the range of 2mm 2 -44mm 2 Under the premise that the pressure and flow rate parameters remain unchanged, the influence of air duct pressure loss on the flow rate of different suction holes can be reduced to improve the concentration of volatilized solvents in different drying areas of the battery slurry and improve the crystallization and drying effect.

[0015] In some embodiments, along the height direction of the box body, the support component is connected to the box body in a position-adjustable manner.

[0016] In actual drying applications, the size, shape and coating solution characteristics of the battery slurry are different, and the drying conditions such as the heating distance and steam exhaust effect have different requirements. The design of the adjustable position of the support part relative to the heating part enables the operator to flexibly adjust the relative height position between the two according to the specific battery slurry. By adjusting the position of the support part relative to the heating part, the battery slurry can be in a better heating position, improving the situation that the heat is lost too much and the heating efficiency is low due to too far distance, or the local overheating and energy waste due to too close distance. Reasonable position adjustment can accurately transfer heat to the part where the to-be-dried object is located, better play the heating effect of the heating part, and improve the heat utilization efficiency in the whole drying process.

[0017] In some embodiments, the box body includes a body part and a door body, the body part is provided with a taking and placing opening in communication with the accommodating space along one side in the first direction, and the door body is provided in a closable manner on the taking and placing opening. In the height direction of the box body, the support part is connected to the door body in a position-adjustable manner.

[0018] The body part is provided with the taking and placing opening and is matched with the closable door body to provide a direct operation channel for the operator to place and take out the battery slurry. The support part is connected to the door body in an adjustable manner in the height direction of the box body, so that the position of the support part relative to the door body can be flexibly changed to change the position of the support part relative to the heating part in the height direction of the box body, so as to reasonably control the heating distance of the battery slurry in the drying process.

[0019] In some embodiments, the support part further includes:

[0020] The first clamping member and the second clamping member are located on both sides of the door body in the first direction, and the first clamping member is located on the outer side of the door body. The heat-conducting member is arranged on the second clamping member. The first clamping member is provided with a first connecting hole on one side in the first direction. The second clamping member is provided with a second connecting hole on the side facing the door body. The door body is provided with a third connecting hole on one side in the first direction.

[0021] The first adjusting member is connected to the third connecting hole in sequence through the first connecting hole and the second connecting hole on one end, and the position of the first adjusting member in the second connecting hole is adjustable in the height direction of the box body.

[0022] When it is necessary to adjust the position of the battery slurry and the heating part in the height direction of the box body, the first adjusting member can be loosened to adjust the first clamping member and the second clamping member up and down. When adjusted to a predetermined position, the first adjusting member is fastened again to fix the first clamping member and the second clamping member to maintain the set distance between the battery slurry and the heating part. Therefore, the height of the battery slurry is adjusted by the first adjusting member, which has the characteristics of compact structure and simple operation.

[0023] In some embodiments, the battery slurry drying device further comprises:

[0024] The adapter is located outside the door body and is located on one side of the first clamping member along the height direction of the box body. The adapter is connected with the door body. The adapter is provided with a fourth connecting hole. The side of the first clamping member facing the adapter is provided with a fifth connecting hole.

[0025] The second adjusting member is screwed with the fifth connecting hole through the fourth connecting hole.

[0026] In the process of adjusting the battery slurry, the first adjusting member can be loosened. By screwing the second adjusting member, the distance between the battery slurry and the heating member can be finely adjusted, so that the adjustment is more accurate and convenient to operate.

[0027] In some embodiments, the battery slurry drying device further comprises a scale and a pointer. The first clamping member is connected with the pointer. The door body is connected with the scale. The scale is arranged along the height direction of the box body. The pointer is configured to point to different scales of the scale.

[0028] Through the setting of the scale and the pointer, the adjustment of each time can be recorded, so that the distance between the battery slurry and the heating member can be adjusted under different drying states, so that the heat of the heating member can be accurately transmitted to the part where the to-be-dried material is located.

[0029] In some embodiments, the door body and the body part are slidingly connected along the first direction. The door body is configured to be driven to open or close the taking and placing opening.

[0030] Therefore, by pushing and pulling the door body, the opening and closing of the door body can be realized, so that the to-be-dried material is pulled out of the taking and placing opening or pushed into the box body. Compared with the traditional flip door body, the probability of interference between the supporting part and the box body during the rotation of the door body can be reduced, and the taking and placing time can be shortened, and the operation efficiency can be improved.

[0031] In some embodiments, the number of drying units is multiple. The multiple drying units are arranged along the height direction of the box body.

[0032] The multiple drying units arranged along the height direction of the box body are equivalent to having multiple independent drying areas in the same set of drying equipment space. In industrial production, especially for products that need to be dried by coating solution, such design can accommodate more battery slurries at one time, and the number of products that can be dried per unit time is doubled, thereby significantly improving the drying capacity. The multiple drying units arranged along the height direction of the box body can reduce the floor space occupied by the battery slurry drying device.

[0033] The above description is only a summary of the technical solutions of the present application. In order to enable one skilled in the art to better understand the technical means of the present application and to implement the same according to the contents of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0034] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Moreover, in the attached drawings, like reference numerals refer to same or similar components. In the drawings:

[0035] Figure 1 A perspective view of a battery slurry drying device according to an embodiment of the present application;

[0036] Figure 2 A perspective view of a drying unit according to an embodiment of the present application;

[0037] Figure 3 A perspective view of a heating member according to an embodiment of the present application;

[0038] Figure 4 A top view of a heating member according to an embodiment of the present application;

[0039] Figure 5 A cross-sectional view of A-A of Figure 4

[0040] Figure 6 An exploded view of a connection between a door body and a support member according to an embodiment of the present application.

[0041] Reference numerals in the detailed description of the embodiments are as follows:

[0042] 100, a battery slurry drying device;

[0043] 110, a drying unit; 120, a seat body;

[0044] 10, a box body; 11, a body portion; 111, a taking and placing opening; 12, a door body; 121, a third connecting hole;

[0045] 20, a support member; 21, a first clamping member; 211, a first connecting hole; 212, a fifth connecting hole; 22, a second clamping member; 221, a clamping piece; 2211, a second connecting hole; 222, a support rod; 223, a heat conducting member; 23, a first adjusting member;

[0046] 30, a heating member; 31, an air suction hole; 32, an air duct;

[0047] ​40, adapter; 41, fourth connecting hole; 50, second adjusting member; 60, scale; 70, pointer;

[0048] X, first direction; Z, height direction. DETAILED DESCRIPTION

[0049] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "comprising" and "having," and any variations thereof, as used in the specification and claims and the aforementioned description of the drawings, are intended to cover not exclusive inclusion.

[0051] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly and specifically limited.

[0052] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0053] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0054] In the description of the embodiments of the present application, the term "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0055] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0056] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0057] At present, in the process of drying the solution for coating by the battery slurry drying device, the atmosphere formed by the evaporation of the solvent in the solution in the oven affects the crystallization of the solution, resulting in unsatisfactory drying effect.

[0058] In view of this, the present application provides a battery slurry drying device, by setting heating elements on both sides of the support part, and the surface of the heating element facing the support part is provided with air suction holes, which can timely suck away the steam generated by the evaporation of the solution while heating the battery slurry to promote the evaporation of the solvent in the solution. Because the steam is timely removed, the possibility of accumulation of steam in the interior of the drying unit to form a bad atmosphere affecting the crystallization of the solution is reduced, and the crystallization effect is improved.

[0059] The battery slurry drying device of the present application can be applied to the drying of battery slurry, such as slurry for producing lithium batteries (the slurry is coated on the current collector to form an active material layer) or perovskite solar cell coating slurry, etc.

[0060] The following embodiments are for the convenience of description, please refer to Figures 1-6 A battery slurry drying device 100 according to some embodiments of the present application is taken as an example for description.

[0061] The battery slurry drying device 100 comprises at least one drying unit 110, and the drying unit 110 comprises a box body 10, a support component 20 and a heating piece 30. The box body 10 has an accommodating space inside. The support component 20 and the heating piece 30 are respectively arranged in the accommodating space. The support component 20 comprises a heat conduction piece 223, and the upper surface of the heat conduction piece 223 has a slurry coating surface for coating the battery slurry. Along the height direction Z of the box body 10, the two sides of the heat conduction piece 223 are respectively provided with the heating piece 30. The heating piece 30 is used for heating the battery slurry. The heating piece 30 is provided with an air suction hole 31 on the surface facing the support component 20. The heating piece 30 is provided with an air duct 32 inside. The air suction hole 31 is in communication with the air duct 32. The box body 10 is provided with an air outlet in communication with the air duct 32.

[0062] The battery slurry refers to the slurry used for coating the surface of the battery current collector. In the process of manufacturing the pole piece, the slurry is usually coated on the surface of the current collector and then dried and rolled to manufacture the pole piece.

[0063] The heating piece 30 can adopt electric heating or infrared heating and the like.

[0064] The air outlet can be connected to an exhaust device such as a fan and an exhaust pipe lamp to exhaust the hot and humid air.

[0065] The box body 10 can be made of a heat insulation material to reduce heat loss.

[0066] The heating piece 30 can be, but is not limited to, a heating plate. As an example, the heating plate is provided with a plurality of heating holes arranged at intervals, and each heating hole is provided with a heating rod.

[0067] The heat conduction piece 223 refers to a piece capable of heat transfer.

[0068] The heat conduction piece 223 can be a metal plate or a non-metal plate. For example, the heat conduction piece 223 can be a copper plate, an aluminum plate or a glass plate, which is not limited in the present application.

[0069] In an example, the box body 10 can be provided with an air inlet to supplement new air into the box body 10 during the air suction of the air suction hole 31. In another example, the box body 10 can also be provided in a structure that is not completely closed.

[0070] By arranging the heating piece 30 on both sides of the support component 20 and arranging the air suction hole 31 on the surface of the heating piece 30 facing the support component 20, the generated steam can be timely sucked away while the battery slurry is heated to evaporate the solvent in the solution. Since the steam is timely sucked away, the possibility of forming an unfavorable atmosphere inside the drying unit 110 to affect the crystallization of the solution is reduced, and the crystallization effect is improved.

[0071] In some embodiments, please refer to Figures 3-5In the same heating piece 30, the number of air suction holes 31 is multiple, the multiple air suction holes 31 are arranged at intervals, and the multiple air suction holes 31 are in communication with the air duct 32.

[0072] The arrangement mode of the air suction hole 31 can be optimized according to the shape of the heating piece 30 and the distribution of the battery slurry. As an example, the heating piece 30 is a heating plate, and the multiple air suction holes 31 can be uniformly arranged at intervals along the length or width direction of the heating plate, to ensure full coverage of the air suction on the battery slurry on the support component 20. For example, the multiple air suction holes 31 can be arranged in a rectangular array.

[0073] As an example, the air duct 32 extends in a straight line direction, the length direction of the air duct 32 intersects the height direction Z of the box body 10, the air duct 32 can pass through one end of the heating plate and form an air outlet end, and the air outlet end is in communication with an air exhaust pipe. The air exhaust pipe extends from the inside of the box body 10 to the outside of the box body 10. The air exhaust pipe can be a flexible pipe or a rigid pipe.

[0074] The multiple air suction holes 31 arranged at intervals can absorb the steam generated by evaporation in a larger area range compared to a single air suction hole 31. Because the steam is emitted from various parts of the battery slurry during the drying process, the multiple air suction holes 31 arranged at intervals can more comprehensively cover these steam generation sources, timely and efficiently suck the steam into the air duct 32, further reduce the accumulation of steam inside the drying unit 110, make the evaporation atmosphere of the solution more stable and conducive to crystallization, and maximize the avoidance of abnormal crystallization caused by steam accumulation, to ensure the quality of the product after drying.

[0075] In some embodiments, please refer to Figures 3-5 In the same heating piece 30, the air suction hole 31 has multiple rows, and each row of air suction holes 31 is in communication with an air duct 32.

[0076] In this way, the area of the suction area around the battery slurry can be increased to reduce the influence of the evaporated material on crystallization, and the drying rate of the battery slurry can be improved.

[0077] In some embodiments, in the same row of air suction holes 31, along the air outlet direction of the air duct 32, the area difference between any two adjacent air suction holes 31 is in the range of 2mm 2 -44mm 2 .

[0078] The shape of the air suction hole 31 is not specifically limited, for example, the air suction hole 31 can be, but is not limited to, a circular, square, or rectangular shape.

[0079] The areas of the plurality of air suction holes 31 along the air outlet direction of the air duct 32 are S1, S2, Sn, n is an integer greater than or equal to 2, and the area difference between any two adjacent air suction holes 31 is the difference between the former and the latter in S1-Sn along the air outlet direction of the air duct 32.

[0080] In an example, the number of air suction holes 31 in the same row is five, the hole diameters of the air suction holes 31 in the same row along the air outlet direction of the air duct 32 are 1.8 mm, 2 mm, 2.5 mm, 3.3 mm, and 5 mm, and the hole distance between any two adjacent air suction holes 31 can be 65 mm.

[0081] If the areas of the plurality of air suction holes 31 are the same, pressure loss will occur in the air duct 32 due to the frictional resistance between the fluid and the air duct 32, resulting in different flow rates of different air suction holes 31, different air flow rates of different regions of the battery slurry, affecting the drying rate of the battery slurry on the one hand, and poor uniformity of the battery slurry after crystallization on the other hand. Therefore, the area difference between any two adjacent air suction holes 31 along the air outlet direction of the air duct 32 is in the range of 2 mm 2 -44 mm 2 Under the premise that the pressure and flow rate parameters remain unchanged, the influence of the pressure loss of the air duct 32 on the flow rates of different air suction holes 31 can be reduced, and under the premise that the pressure and flow rate parameters remain unchanged, the consistency of the flow rates of the air suction holes 31 can be improved to improve the crystallization and drying effect.

[0082] In some embodiments, please refer to Figure 1 and Figure 6 The support component 20 is connected to the box body 10 in a position-adjustable manner along the height direction Z of the box body 10.

[0083] The up-down sliding adjustment of the support component 20 relative to the box body 10 can be achieved by structures such as sliding rails and sliding grooves.

[0084] Mechanical transmission mechanisms such as screw-nut pairs can also be used to accurately adjust the height position of the support component 20.

[0085] As an example, a lifting bracket is installed inside the box body 10, the side wall of the box body 10 is provided with a long hole extending along the height direction Z of the box body 10, part of the bracket is located in the long hole of the box body 10, and the box body 10 and the bracket are connected by screws. Specifically, the end of the screw passes through the long hole and is threadedly connected with the bracket. One side of the box body 10 along the first direction X has a door body 12, and the support component 20 is slidingly connected with the bracket along the first direction X to realize the pulling of the support component 20 and the taking and placing of the to-be-dried piece.

[0086] In actual drying applications, the size, shape and coating solution properties of the battery slurry are different, and the drying conditions such as the heating distance and steam exhaust effect have different requirements. The design of the adjustable position of the support part 20 relative to the heating part 30 enables the operator to flexibly adjust the relative height position between the two according to the specific battery slurry. By adjusting the position of the support part 20 relative to the heating part 30, the battery slurry can be in a better heating position, improving the situation that too much heat is lost and the heating efficiency is low due to too far distance, or local overheating and energy waste due to too close distance. Reasonable position adjustment can accurately transfer heat to the part where the to-be-dried material is located, better play the heating role of the heating part 30, and thus improve the heat utilization efficiency in the entire drying process.

[0087] In some embodiments, please refer to Figure 1 and Figure 6 The box body 10 includes a body part 12 and a door body 12. The body part 12 is provided with a taking and placing opening 111 communicating with the accommodating space on one side along the first direction X. The door body 12 is provided on the taking and placing opening 111 in a closable manner. Along the height direction Z of the box body 10, the support part 20 is connected to the door body 12 in a position-adjustable manner.

[0088] The door body 12 can be connected to the box body 10 through a slide rail or a guide rod, etc., to realize flexible opening and closing.

[0089] The door body 12 can be operated in a manual or automatic control manner. For example, the door body 12 can be driven by a cylinder to realize the opening and closing of the door body 12. The door body 12 can also be threadedly connected to the box body 10 through a screw.

[0090] As an example, a long slot hole extending along the height direction Z of the box body 10 can be provided on the door body 12. Part of the support part 20 passes through the long slot hole and is located outside the door body 12. A screw rod can be rotationally connected on the door body 12. The screw rod is vertically arranged. The support part 20 is threadedly connected to the screw rod. The adjustment of the support part 20 relative to the door body 12 is realized by rotating the screw rod.

[0091] The body part 12 is provided with the taking and placing opening 111 and is matched with the openable door body 12, which provides a direct operation channel for the operator to place and take out the battery slurry. The support part 20 is connected to the door body 12 in an adjustable manner along the height direction Z of the box body 10, which can flexibly change the position of the support part 20 relative to the door body 12, so as to change the position of the support part 20 relative to the heating part 30 along the height direction Z of the box body 10, so as to reasonably control the heating distance of the battery slurry in the drying process.

[0092] In some embodiments, please refer to Figure 1 and Figure 6The supporting component 20 further comprises a first clamping member 21, a second clamping member 22 and a first adjusting member 23. The first clamping member 21 and the second clamping member 22 are located on both sides of the door body 12 along the first direction X, and the first clamping member 21 is located on the outer side of the door body 12. The heat-conducting member 223 is arranged on the second clamping member 22. The first clamping member 21 is provided with a first connecting hole 211 on one side along the first direction X. The second clamping member 22 is provided with a second connecting hole 2211 on one side facing the door body 12. The door body 12 is provided with a third connecting hole 121 on one side along the first direction X. One end of the first adjusting member 23 passes through the first connecting hole 211 and the second connecting hole 2211 in sequence and is connected with the third connecting hole 121. The position of the first adjusting member 23 in the second connecting hole 2211 is adjustable along the height direction Z of the box body 10.

[0093] The third connecting hole 121 can be a threaded hole or a special-shaped hole. As an example, the third connecting hole 121 is a threaded hole, and the first adjusting member 23 can be a screw. The screw is threadedly connected with the threaded hole. As another example, the first adjusting member 23 comprises a screw and a nut. The nut is located on the side of the second clamping member 22 away from the door body 12. The third connecting hole 121 is a hexagonal hole. The nut is embedded in the hexagonal hole. One end passing through in sequence passes through the first connecting hole 211 and the second connecting hole 2211 in sequence and is threadedly connected with the nut in the third connecting hole 121.

[0094] As an example, the second clamping member 22 comprises a clamping member 221 and a supporting rod 222. The clamping member 221 is provided with the second connecting hole 2211. The clamping member 221 and the supporting rod are fixedly connected by welding, screw connection or riveting. The heat-conducting member 223 is mounted on the supporting rod 222.

[0095] The first adjusting member 23 can be, but is not limited to, a screw or a handle with a screw rod.

[0096] The second connecting hole 2211 can be, but is not limited to, a round hole, a long slot hole or a rectangular hole. For example, when the adjusting range of the supporting component 20 is not large, a round hole with a larger diameter can be arranged to allow the supporting component 20 to have a certain movement space in the height direction Z of the box body 10.

[0097] When it is necessary to adjust the position of the battery slurry and the heating member 30 along the height direction Z of the box body 10, the first adjusting member 23 can be loosened to adjust the first clamping member 21 and the second clamping member 22 up and down. After being adjusted to a predetermined position, the first adjusting member 23 is tightened to fix the first clamping member 21 and the second clamping member 22 to maintain the battery slurry and the heating member 30 at a set distance. Therefore, the height of the battery slurry is adjusted by the first adjusting member 23, which has the characteristics of compact structure and simple operation.

[0098] In some embodiments, referring to Figure 1 and Figure 6 , the battery slurry drying device 100 further comprises an adapter 40 and a second adjusting member 50. The adapter 40 is located on the outside of the door body 12 along the height direction Z of the box body 10, and is located on one side of the first clamping member 21. The adapter 40 is connected with the door body 12, and is provided with a fourth connecting hole 41. The side of the first clamping member 21 facing the adapter 40 is provided with a fifth connecting hole 212. One end of the second adjusting member 50 passes through the fourth connecting hole 41 and is threadedly connected with the fifth connecting hole 212.

[0099] The adapter 40 can be fixed to the door body 12 by screwing, welding, riveting or one-piece forming.

[0100] The adapter 40 can be, but is not limited to, a screw rod, a screw or a handle with a screw rod.

[0101] During the adjustment of the battery slurry, the first adjusting member 23 can be loosened, and the second adjusting member 50 can be screwed to fine-tune the distance between the battery slurry and the heating member 30, so that the adjustment is more accurate and convenient to operate.

[0102] In some embodiments, referring to Figure 6 , the battery slurry drying device 100 further comprises a scale 60 and a pointer 70. The first clamping member 21 is connected with the pointer 70, and the door body 12 is connected with the scale 60. The scale 60 is arranged along the height direction Z of the box body 10, and the pointer 70 is configured to point to different scales of the scale 60.

[0103] The first clamping member 21 can be fixed with the pointer 70 by screwing, clamping, welding or riveting.

[0104] Through the setting of the scale 60 and the pointer 70, the adjustment of each time can be recorded, so that the distance between the battery slurry and the heating member 30 can be adjusted under different drying conditions, so that the heat of the heating member 30 can be accurately transmitted to the part where the to-be-dried object is located.

[0105] In some embodiments, the door body 12 is slidingly connected with the body part 12 along the first direction X, and the door body 12 is arranged to be driven to open or close the taking and placing opening 111.

[0106] The door body 12 and the box body 10 can be slidingly connected with the body part 12 along the first direction X through a guide rod, a guide slot or a guide rail. The door body 12 can be driven by a driving component such as a pneumatic cylinder or an electric push rod to realize the sliding of the door body 12 relative to the body part 12 along the first direction X, so as to realize the opening and closing of the door body 12. In other examples, the door body 12 can also be opened and closed manually, such as by providing a fastener on the door body 12 to realize the detachable connection of the door body 12 with the body part 12.

[0107] Thus, the opening and closing of the door body 12 can be realized by the sliding door body 12, so that the to-be-dried materials are pulled out or pushed into the box body 10 from the taking and placing opening 111. Compared with the conventional flip door body 12, the probability of interference between the supporting part 20 and the box body 10 during the rotation of the door body 12 can be reduced, and the taking and placing time can be shortened, and the operation efficiency can be improved.

[0108] In some embodiments, referring to Figure 1 , the number of the drying units 110 is multiple, and the multiple drying units 110 are arranged along the height direction Z of the box body 10.

[0109] As an example, the battery slurry drying device 100 further comprises a seat body 120, and the multiple drying units 110 are connected with the seat body 120, which can be fixed to the seat body 120 by welding, screw connection or riveting and the like.

[0110] The multiple drying units 110 arranged along the height direction Z of the box body 10 are equivalent to simultaneously having multiple independent drying areas in the space of the same set of drying equipment. In industrial production, especially for products that need to be dried by a large amount of coating solution, such a design can accommodate more battery slurries at one time, and the number of products that can be dried per unit time is multiplied, thereby significantly improving the drying capacity. The multiple drying units 110 arranged along the height direction Z of the box body 10 can reduce the floor space occupied by the battery slurry drying device 100.

[0111] In an optional embodiment of the battery slurry drying device 100, referring to Figures 1-6 , the battery slurry drying device 100 comprises at least one drying unit 110, and the drying unit 110 comprises a box body 10, a supporting part 20 and a heating part 30. The inside of the box body 10 has an accommodation space. Part of the supporting part 20 and the heating part 30 are respectively located in the accommodation space. The supporting part 20 comprises a heat-conducting part 223, and the upper surface of the heat-conducting part 223 has a slurry coating surface for coating battery slurry. Along the height direction Z of the box body 10, the two sides of the heat-conducting part 223 are respectively provided with the heating part 30, and the heating part 30 is used for heating the battery slurry. The surface of the heating part 30 facing the supporting part 20 is provided with an air suction hole 31, the inside of the heating part 30 is provided with an air duct 32, the air suction hole 31 is in communication with the air duct 32, and the box body 10 is provided with an air outlet in communication with the air duct 32. In the same heating part 30, the number of the air suction holes 31 is multiple, and the multiple air suction holes 31 are arranged at intervals, the multiple air suction holes 31 are in communication with the air duct 32, the air suction hole 31 has multiple rows, and each row of the air suction holes 31 is in communication with one air duct 32. In the same row of the air suction holes 31, along the air outlet direction of the air duct 32, the area difference of any two adjacent air suction holes 31 is in the range of 2mm 2 -44mm2 The support component 20 is connected to the cabinet 10 in a position-adjustable manner along the height direction Z of the cabinet 10. The cabinet 10 comprises a body part 12 and a door part 12. The body part 12 is provided with a taking and placing opening 111 communicating with the accommodating space on one side along the first direction X. The door part 12 is provided in a coverable and openable manner on the taking and placing opening 111. The support component 20 is connected to the door part 12 in a position-adjustable manner along the height direction Z of the cabinet 10. The support component 20 further comprises a first clamping member 21, a second clamping member 22 and a first adjusting member 23. The first clamping member 21 and the second clamping member 22 are located on both sides of the door part 12 along the first direction X. The first clamping member 21 is located on the outer side of the door part 12. The heat-conducting member 223 is arranged on the second clamping member 22 and is used for placing the battery slurry. The first clamping member 21 is provided with a first connecting hole 211 on one side along the first direction X. The second clamping member 22 is provided with a second connecting hole 2211 on the side facing the door part 12. The door part 12 is provided with a third connecting hole 121 on one side along the first direction X. One end of the first adjusting member 23 passes through the first connecting hole 211 and the second connecting hole 2211 in sequence and is threadedly connected with the third connecting hole 121. The position of the first adjusting member 23 in the second connecting hole 2211 is adjustable along the height direction Z of the cabinet 10. The battery slurry drying device 100 further comprises an adapter 40 and a second adjusting member 50. The adapter 40 is located on the outer side of the door part 12 and is located on one side of the first clamping member 21 along the height direction Z of the cabinet 10. The adapter 40 is connected with the door part 12. The adapter 40 is provided with a fourth connecting hole 41. The first clamping member 21 is provided with a fifth connecting hole 212 on the side facing the adapter 40. One end of the second adjusting member 50 passes through the fourth connecting hole 41 and is threadedly connected with the fifth connecting hole 212. The battery slurry drying device 100 further comprises a scale 60 and a pointer 70. The first clamping member 21 is connected with the pointer 70. The door part 12 is connected with the scale 60. The scale 60 is arranged along the height direction Z of the cabinet 10. The pointer 70 is configured to point to different scales of the scale 60. The door part 12 is slidingly connected with the cabinet 10 along the first direction X. The door part 12 is arranged to be driven to open or close the taking and placing opening 111.

[0112] After opening the door part 12 and smearing the battery slurry on the heat-conducting member 223, the door part 12 is closed. The heating member 30 heats the battery slurry. The suction holes 31 can suck and remove the evaporated solvent. The flow rate of each suction hole 31 is substantially maintained during the drying process to reduce the influence of the evaporated solvent on different positions of the battery slurry and improve the crystallization quality. During the drying process, the support component 20 can be adjusted. The position of the pointer 70 on the scale 60 is observed. The heat of the heating member 30 is fully utilized for drying to improve the drying effect.

[0113] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently. Such modifications or replacements do not change the essence of the corresponding technical solutions, which should be covered in the scope of the claims and the specification of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery slurry drying apparatus, characterized by, The battery slurry drying device comprises at least one drying unit, the drying unit comprises: a box body, the inside of the box body has a containing space; a support component, part of the support component is located in the containing space, the support component comprises a heat-conducting member, the upper surface of the heat-conducting member has a slurry coating surface for coating battery slurry; a heating member is arranged in the containing space, and two sides of the heat-conducting member are respectively provided with the heating member in the height direction of the box body, the heating member is used for heating the battery slurry, the surface of the heating member facing the support component is provided with an air suction hole, the inside of the heating member is provided with an air duct, the air suction hole is in communication with the air duct, and the box body is provided with an air outlet in communication with the air duct.

2. The battery slurry drying apparatus according to claim 1, wherein In the same heating member, the number of air suction holes is multiple, and multiple air suction holes are arranged at intervals, and multiple air suction holes are in communication with the air duct.

3. The battery slurry drying apparatus according to claim 2, wherein In the same heating member, the air suction holes have multiple rows, and each row of air suction holes is in communication with one air duct.

4. The battery slurry drying apparatus according to claim 3, wherein In the same row of the suction holes, along the air outlet direction of the air duct, the area difference of any two adjacent suction holes is 2mm 2 -44mm 2 .

5. The battery slurry drying apparatus according to any one of claims 1 to 4, characterized by, In the height direction of the box body, the support component is connected to the box body in a position-adjustable manner.

6. The battery slurry drying apparatus according to claim 5, wherein The box body comprises a body part and a door body, one side of the body part in a first direction is provided with a taking and placing opening in communication with the containing space, the door body is arranged on the taking and placing opening in an openable and closable manner, and the support component is connected to the door body in a position-adjustable manner in the height direction of the box body.

7. The battery slurry drying apparatus according to claim 6, wherein The support component further comprises: a first clamping member and a second clamping member, the first clamping member and the second clamping member are located on both sides of the door body in the first direction, and the first clamping member is located on the outside of the door body, the heat-conducting member is arranged on the second clamping member, one side of the first clamping member in the first direction is provided with a first connecting hole, one side of the second clamping member facing the door body is provided with a second connecting hole, and one side of the door body in the first direction is provided with a third connecting hole; a first adjusting member, one end of the first adjusting member sequentially passes through the first connecting hole and the second connecting hole, and is connected with the third connecting hole, and the position of the first adjusting member in the second connecting hole in the height direction of the box body is adjustable.

8. The battery slurry drying apparatus according to claim 7, wherein The battery slurry drying device further comprises: an adapter located on the outside of the door body, the adapter is located on one side of the first clamping member in the height direction of the box body, the adapter is connected with the door body, the adapter is provided with a fourth connecting hole, and one side of the first clamping member facing the adapter is provided with a fifth connecting hole; a second adjusting member, one end of the second adjusting member passes through the fourth connecting hole and is threadedly connected with the fifth connecting hole.

9. The battery slurry drying apparatus according to claim 7, wherein The battery slurry drying device further comprises a scale and a pointer, the first clamping member is connected with the pointer, the door body is connected with a scale, the scale is arranged along the height direction of the box body, and the pointer is configured to point to different scales of the scale.

10. The battery slurry drying apparatus according to claim 6, wherein The door body and the body part are connected in sliding mode in the first direction, and the door body is arranged to be driven to open or close the taking and placing opening.

11. The battery slurry drying apparatus according to any one of claims 1 to 4, characterized by The number of the drying units is multiple, and the multiple drying units are arranged along the height direction of the box body.

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