CN216321449U

CN216321449U - Dispersion indirect heating equipment and mixing system

Info

Publication number: CN216321449U
Application number: CN202122780363.XU
Authority: CN
Inventors: 李哲; 车欢; 陈威; 李世松
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-19
Anticipated expiration: 2031-11-12
Also published as: WO2023082879A1

Abstract

The utility model relates to a dispersion heat exchange device and a stirring system. The equipment comprises a shell and a pipe fitting arranged in the shell, wherein a pipe cavity of the pipe fitting forms an inner-layer channel, the shell and the outer wall of the pipe fitting form an outer-layer channel, the inner-layer channel is used for allowing slurry or glue solution to pass through one of the inner-layer channel and the outer-layer channel, the outer-layer channel is used for allowing slurry or glue solution to pass through the other of the inner-layer channel and the outer-layer channel, the dispersing heat exchange equipment comprises a stirring assembly, and the stirring assembly is used for stirring the slurry. The stirring system comprises a dispersion heat exchange device, a slurry stirring device and a glue solution stirring device. The heat exchange is carried out between the material in the inner layer channel and the material in the outer layer channel through heat exchange, so that the temperature of the slurry with higher temperature is reduced to some extent, and the subsequent preparation of the battery is facilitated. Meanwhile, the temperature of the glue solution with lower temperature can be increased, so that the heating time of the glue solution and part of energy consumption required by heating are reduced when the glue solution is used for preparing sizing agent subsequently, and the quality of the sizing agent is improved.

Description

Dispersion indirect heating equipment and mixing system

Technical Field

The utility model relates to the technical field of battery slurry preparation, in particular to a dispersing heat exchange device and a stirring system.

Background

With the development of science and technology, the application range of power batteries is expanded more and more. The power battery can be applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, and also can be widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and a plurality of fields such as military equipment and aerospace.

At present, in the process of preparing a power battery, battery slurry is generally adopted as a raw material for preparation. Before the battery slurry is used, the battery slurry needs to be fully stirred, but in the stirring process, the slurry can generate a large amount of heat, and the overheated slurry can cause the quality reduction of the battery, so that the condensate water is needed to be used for cooling the battery slurry so as to improve the quality of the battery slurry.

However, the cost is high in the production process of the battery slurry at present.

SUMMERY OF THE UTILITY MODEL

In view of above-mentioned problem, the application provides a dispersion indirect heating equipment and mixing system, can alleviate the higher problem of cost of battery thick liquids in process of production.

In a first aspect, the present application provides a decentralized heat exchange device, comprising: the shell and the pipe fitting that sets up in the shell, the lumen of pipe fitting forms the inlayer passageway, the shell with the outer wall of pipe fitting forms outer passageway, the inlayer passageway is arranged in passing through one of the two of thick liquids or glue solution, outer passageway is arranged in passing through the other of the two of thick liquids or glue solution, dispersion indirect heating equipment includes the stirring subassembly, the stirring subassembly is used for stirring thick liquids.

In the technical scheme of the embodiment of the application, the sizing agent or the glue solution is introduced into the inner-layer channel, and the other one of the sizing agent or the glue solution is introduced into the outer-layer channel. The heat exchange is carried out between the material in the inner layer channel and the material in the outer layer channel through heat exchange, so that the temperature of the slurry with higher temperature is reduced to some extent, and the subsequent preparation of the battery is facilitated. Meanwhile, the glue solution with lower temperature can be heated. After the temperature of the glue solution is raised, the temperature rise time of the glue solution and part of energy consumption required by temperature rise can be reduced in the subsequent process of preparing the sizing agent by using the glue solution, the cost is effectively reduced, and the quality of the glue solution can be improved after the temperature of the glue solution is raised, so that the quality of the sizing agent is improved when a new sizing agent is prepared by using the glue solution. In addition, the glue solution can flow in the inner-layer channel or the outer-layer channel, so that the stirring time of the glue solution can be reduced, the production rate of the slurry is improved, and the production cost of the slurry is reduced.

In one embodiment, the stirring assembly comprises a first stirring piece and a second stirring piece which are arranged at intervals, and the first stirring piece can move relative to the second stirring piece. Through the relative motion of first stirring piece and second stirring piece for thick liquids can be when inner passageway or outer passageway flow, are cuted by first stirring piece and second stirring piece, make thick liquids can stir at the removal in-process, make thick liquids dispersion more even. And in the stirring process of thick liquids, can remove the thick liquids that are located inlayer passageway or skin passageway middle part to the pipe wall department of pipe fitting, be convenient for carry out the heat exchange with the glue solution and cool off.

In one embodiment, the first stirring member and the second stirring member rotate in opposite directions. This setting can be so that first stirring piece and second stirring piece relative movement's range, compare in first stirring piece and second stirring piece rotation direction under the different circumstances of same rotational speed, the stirring effect of using thick liquids under the same energy consumption is better, and then improves heat exchange efficiency.

In one embodiment, the first stirring member is provided with a stirring side wall which can rotate relative to the pipe member, and the stirring side wall is provided with at least one through hole; the second stirring piece is rotatably arranged on one side, far away from the pipe fitting, of the stirring side wall. The through-hole that the stirring lateral wall set up can be so that the thick liquids pass from the both sides of stirring lateral wall for the stirring lateral wall is at the motion in-process, cuts thick liquids in order to realize the stirring. The second stirring piece is arranged on one side of the stirring side wall far away from the pipe fitting, so that the slurry in the middle of the stirring side wall can be well stirred.

In one embodiment, the first stirring member is a cylindrical stirring member, and the second stirring member is a screw-shaped stirring member; the second stirring piece is positioned in the middle of the first stirring piece. The arrangement can ensure that the slurry is sheared and mixed between the cylindrical stirring piece and the pipe wall of the pipe fitting, and the slurry in the cylindrical stirring piece is uniformly mixed under the stirring of the screw rod-shaped stirring piece. Due to the design, the dead angle of stirring can be reduced as much as possible, the stirring effect is improved, and the heat exchange efficiency is further improved.

In one embodiment, the second stirring member is arranged coaxially with the first stirring member. Above-mentioned setting is convenient for the two and is rotating the in-process, and the thick liquids between first stirring piece and the second stirring piece keep evenly distributed basically, improve the stirring effect of thick liquids, and then improve heat exchange efficiency.

In one embodiment, the gap between the first stirring piece and the second stirring piece is 0.5mm-2 mm; and/or the clearance between the first stirring piece and the pipe wall of the pipe fitting is 0.5mm-2 mm. When the gap between the first stirring piece and the second stirring piece is 0.5mm-2mm, the slurry positioned between the first stirring piece and the second stirring piece can be well stirred. Too wide and too narrow gaps can reduce the stirring effect. When the gap between the first stirring piece and the pipe wall is 0.5mm-2mm, the slurry positioned between the first stirring piece and the pipe wall can be well stirred, and the stirring effect can be reduced by the excessively wide and narrow gaps.

In one embodiment, the number of the pipe fittings is at least two, the pipe fittings are arranged at intervals, the liquid inlet ends of all the pipe fittings are communicated, and the liquid outlet ends of all the pipe fittings are communicated. Through the setting of a plurality of pipe fittings, can increase the volume of cooling thick liquids in unit interval, reduce the cooling time, improve the production efficiency of thick liquids to reduce cost.

In a second aspect, the present application provides a stirring system for stirring battery slurry and a glue solution, including the above-mentioned dispersion heat exchange device, slurry stirring device, and glue solution stirring device; one of the inner layer channel and the outer layer channel is communicated with a discharge hole of the slurry stirring equipment; the other of the inner layer channel and the outer layer channel is communicated with a discharge hole of the glue solution stirring equipment. The stirring system can cool the slurry and heat the sizing material at the same time in the process of preparing the slurry, thereby reducing the production cost of the battery slurry.

In one embodiment, the discharge port of the slurry stirring device is communicated with the feed port of the inner layer channel, and the discharge port of the inner layer channel is communicated with the feed back port of the slurry stirring device. Such design makes the thick liquids can stir in thick liquids agitating unit, and the thick liquids that the temperature rose can let in the pipe fitting way to move along the direction of feed inlet to discharge gate that the pipe fitting said, at the removal in-process, can carry out the heat exchange with the glue solution in order to cool down, and the thick liquids after the cooling can drop into and continue the stirring in the thick liquids agitated vessel, makes the thick liquids mix more evenly.

In one embodiment, the glue solution stirring device further comprises a cooling recovery assembly, the cooling recovery assembly is communicated with a recovery port of the glue solution stirring device, and the cooling recovery assembly is used for storing and cooling the glue solution. The cooling and recycling assembly can store glue solution so as to temporarily store the glue solution which is not required to be put into the next production after the heat exchange temperature rise, and can recycle the glue solution into the glue solution stirring equipment after the glue solution is cooled to room temperature so as to be convenient for circulation.

In one embodiment, the cooling recovery assembly comprises at least one cooling tank for storing glue. Can store the glue solution through the cooling tank to make the glue solution cool down naturally, the reuse of the glue solution of being convenient for compares in addition other cooling recovery subassemblies, and the cooling tank need not to increase extra heat abstractor, and the cost is lower.

In one embodiment, the cooling and recycling assembly comprises a glue solution pool, a liquid inlet of the glue solution pool is communicated with a liquid outlet of the cooling pool, and a liquid outlet of the glue solution pool is communicated with a glue inlet of the glue solution stirring device. The glue solution pool can store the normal-temperature glue solution, and the recovered glue solution and the newly prepared glue solution can be introduced into the glue solution stirring equipment together, so that the recovered glue solution and the newly prepared glue solution can be mixed conveniently.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various additional 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 drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

FIG. 1 is a schematic diagram of a stirring system according to some embodiments of the present application.

Fig. 2 is a schematic structural diagram of a first stirring member of a dispersive heat exchange device according to some embodiments of the present application.

Fig. 3 is a schematic structural diagram of a second stirring member of the dispersive heat exchange device according to some embodiments of the present application.

FIG. 4 is a schematic diagram of a configuration of a blending system according to some embodiments of the present application.

The reference numbers in the detailed description are as follows:

100. dispersing heat exchange equipment; 110. a housing; 120. a pipe fitting; 130. an inner layer channel; 140. an outer layer channel; 200. a stirring assembly; 210. a first stirring member; 211. stirring the side wall; 212. a through hole; 213. a first driving section; 214. a first rotating section; 220. a second stirring member; 221. a second driving section; 222. a second rotating part; 300. a slurry stirring device; 310. a slurry stirring tank; 311. a pulp outlet; 312. a pulp inlet; 313. a pulp discharge port; 314. a pulp return port; 320. a slurry stirring member; 400. glue solution stirring equipment; 410. a glue solution stirring tank; 411. a glue outlet; 412. a glue inlet; 413. a glue discharging port; 414. returning the glue mouth; 420. a glue solution stirring piece; 500. cooling the recovery assembly; 510. a glue solution pool; 520. a cooling pool; 521. a primary cooling tank; 522. a secondary cooling pool; 523. and a third-stage cooling pool.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, 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 application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

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 application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

At present, with the development of the market, the application of the power battery is more and more extensive, and the market demand of the power battery also rises day by day. The quality of the power battery is greatly related to the quality of the battery slurry.

The present inventors have noticed that in the preparation of battery pastes, particularly lithium battery pastes, when the respective materials are stirred to form a paste, a large amount of heat is emitted, so that the overall temperature of the paste rises. And when the temperature of the slurry is too high, the quality of the slurry is irreversibly and seriously affected.

In the prior art, cooling water is generally adopted to cool slurry, however, when the cooling water is recycled, the cooling water at a higher temperature after heat exchange needs to be cooled to obtain cooling water at a lower temperature so as to facilitate subsequent recycling, and in the cooling process, equipment such as a water chilling unit and a heat preservation water tank is generally used to provide cooling water. The above method requires additional energy consumption to produce cooling water, thereby increasing the cost.

On the other hand, some substances (e.g., PVDF) in the slurry require a proper high temperature to sufficiently dissolve and swell, and thus, in order to shorten the process time and increase the productivity, they are pre-dissolved in some processes. And the temperature of the pre-dissolved glue solution is increased, so that the glue solution can be dissolved sufficiently, and the quality of the sizing agent is improved.

Based on the above consideration, as shown in fig. 1, the dispersing and heat exchanging device 100 in the present application can exchange heat between the slurry and the glue solution, so that the slurry can be cooled, and meanwhile, the glue solution can be heated, thereby facilitating subsequent use of the glue solution and reducing energy consumption required by heating the glue solution. In addition, the dispersing heat exchange equipment 100 is adopted, cooling water is not required to be manufactured for cooling the slurry, and the cost is further reduced.

The dispersing and heat exchanging device 100 disclosed in the embodiment of the present application may be used to prepare anode slurry, and may also be used to prepare cathode slurry. The slurry can be battery slurry of a lithium battery, and can also be battery slurry of other batteries.

For convenience of explanation, the following examples will be described by taking a stirring system according to an embodiment of the present application as an example.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a stirring system according to some embodiments of the present application. The stirring system comprises a dispersing heat exchange device 100, a slurry stirring device 300 and a glue solution stirring device 400. The slurry stirring apparatus 300 can provide and stir the slurry, so that the substances in the slurry are uniformly mixed. The glue solution stirring device 400 may provide and stir the glue solution. The dispersion heat exchange device 100 can realize heat exchange between the high-temperature slurry and the low-temperature glue solution, so that the temperature of the glue solution is increased while the battery slurry is cooled, and the cost is reduced.

The slurry stirring apparatus 300 may include a slurry stirring tank 310 and a slurry stirring member 320 rotatably disposed in the slurry stirring tank 310. Wherein, the slurry stirring tank 310 has a slurry outlet 311, and the slurry outlet 311 can be communicated with the dispersing heat exchange device 100 to convey the high-temperature slurry obtained by stirring into the dispersing heat exchange device 100. A power member, such as a slurry pump, may be disposed at the slurry outlet 311 to deliver slurry. Slurry agitator tank 310 also has a slurry return port 314, and slurry return port 314 may be in communication with decentralized heat exchange device 100 to re-deliver the heat-exchanged slurry at a reduced temperature back into slurry agitator tank 310 for further agitation. The slurry stirring tank 310 is further provided with a slurry inlet 312 and a slurry outlet 313. The inlet port 312 can feed new slurry or slurry-forming raw material, and the outlet port 313 can discharge slurry that has been sufficiently stirred.

In some embodiments, the slurry outlet 311 and the slurry outlet 313 may be located at the bottom of the slurry stirring tank 310 or near the sidewall of the bottom, so as to discharge the corresponding slurry. The slurry return port 314 and the slurry inlet port 312 may be located at the top of the slurry agitator tank 310 or near the side wall of the top to facilitate the slurry input.

The slurry stirring member 320 may be a propeller type stirring member, a turbine type stirring member, an anchor type stirring member, or a ribbon type stirring member, and may be other types of stirring members.

Glue solution stirring apparatus 400 the glue solution stirring apparatus 400 may include a glue solution stirring tank 410 and a glue solution stirring member 420 rotatably disposed in the glue solution stirring tank 410. The glue solution stirring tank 410 is provided with a glue outlet 411, and the glue outlet 411 can be communicated with the dispersing heat exchange device 100 to convey the normal-temperature glue solution into the dispersing heat exchange device 100. A power member, such as a glue pump, may be disposed at the glue outlet 411 to deliver glue. The glue solution stirring tank 410 is further provided with a glue return port 414, and the glue return port 414 can be communicated with the dispersing heat exchange device 100 to re-convey the glue solution with the increased temperature after heat exchange back into the glue solution stirring tank 410 so as to be discharged or perform subsequent steps. The glue solution stirring tank 410 is further provided with a glue inlet 412 and a glue outlet 413. The glue inlet 412 can deliver new glue or recycle low-temperature glue, and the glue outlet 413 can discharge glue with increased temperature.

In some embodiments, the glue outlet 411 and the glue outlet 413 may be located at the bottom of the glue solution stirring tank 410 or near the sidewall of the bottom, so as to discharge the corresponding glue solution. The glue returning port 414 and the glue inlet 412 may be located at the top of the glue solution stirring tank 410 or near the side wall of the top, so as to facilitate the input of the glue solution.

According to some embodiments of the present application, a decentralized heat exchange device 100 is provided, comprising a housing 110 and a tube 120 arranged within the housing 110. The lumen of tube 120 forms an inner passage 130. The housing 110 and the outer wall of the tube 120 form an outer passage 140. Inner layer channels 130 are adapted to pass one of the slurry or cement and outer layer channels 140 are adapted to pass the other of the slurry or cement. The dispersing and heat exchanging device 100 further comprises a stirring assembly 200, and the stirring assembly 200 is used for stirring the slurry.

The shape of the housing 110 may be adjusted according to actual conditions, for example, it may be cylindrical or prismatic, or may be other shapes. The pipe member 120 is hermetically connected to the housing 110 such that the outer passage 140 and the inner passage 130 cannot communicate with each other, thereby ensuring heat exchange stability.

When the slurry is passed into the inner passage 130, the stirring assembly 200 is positioned in the inner passage. As the slurry passes into outer passage 140, stirring assembly 200 is positioned within outer passage 140.

The dispersion heat exchange device 100 may introduce the slurry or the glue solution into the inner channel 130, and introduce the other one of the slurry or the glue solution into the outer channel 140. The heat exchange between the material in the inner layer channel 130 and the material in the outer layer channel 140 is performed through heat exchange, so that the temperature of the slurry with higher temperature is reduced to some extent, and the subsequent preparation of the battery is facilitated. Meanwhile, the temperature of the glue solution with lower temperature can be increased. After the temperature of the glue solution is raised, the temperature rise time of the glue solution and part of energy consumption required by temperature rise can be reduced in the subsequent process of preparing the sizing agent by using the glue solution, the cost is effectively reduced, and the quality of the glue solution can be improved after the temperature of the glue solution is raised, so that the quality of the sizing agent is improved when a new sizing agent is prepared by using the glue solution. In addition, the glue solution can flow in the inner-layer channel 130 or the outer-layer channel 140, so that the stirring time of the glue solution can be reduced, the production rate of the slurry is improved, and the production cost of the slurry is reduced.

The stirring assembly 200 located in the inner layer channel 130 or the outer layer channel 140 where the slurry is located can stir the slurry in the slurry cooling process, so that the slurry can still be stirred in the flowing process, the slurry can be mixed more uniformly, and the stirring time of the slurry can be shortened to a certain extent.

Referring to fig. 1-3, in some embodiments, the stirring assembly 200 includes a first stirring member 210 and a second stirring member 220 spaced apart from each other, and the first stirring member 210 is movable relative to the second stirring member 220. Through the relative motion of the first stirring member 210 and the second stirring member 220, when the slurry can flow in the inner layer channel 130 or the outer layer channel 140, the slurry is sheared by the first stirring member 210 and the second stirring member 220, so that the slurry can be stirred in the moving process, and the slurry is dispersed more uniformly. And during the stirring process of the slurry, the slurry in the middle of the inner layer channel 130 or the outer layer channel 140 can be moved to the pipe wall of the pipe 120, so as to exchange heat with the glue solution for cooling.

In some embodiments, the stirring assembly 200 is positioned within the inner passage 130 defined by the tube 120. That is, the slurry may enter the inner layer passage 130 for cooling. Correspondingly, the glue solution enters the outer layer channel 140 for cooling. The arrangement can enable the shell 110 to enter more glue solution under a certain heat exchange area so as to cool the pulp.

In some embodiments, the gap between the first stirring member 210 and the second stirring member 220 is 0.5mm to 2 mm. The gap between the first stirring member 210 and the second stirring member 220 means: the distance between the plane of the first stirring element 210 remote from its stirring axis and the plane of the second stirring element 220 remote from its stirring axis. The width of the gap can enable the slurry between the first stirring member 210 and the second stirring member 220 to be stirred well, and the too wide and too narrow gaps can reduce the stirring effect.

In some embodiments, the gap between first stirring member 210 and the wall of pipe 120 is 0.5mm to 2 mm. The gap between the first stirring member 210 and the pipe wall of the pipe member 120 means: the distance between the first stirring member 210 remote from its stirring axis and the wall of the pipe 120. The slurry in the gap between the first stirring member 210 and the pipe wall can be stirred well, and the stirring effect is reduced by the gap which is too wide or too narrow.

In some embodiments, the first stirring member 210 rotates in the opposite direction to the second stirring member 220. Such an arrangement may enable the relative movement amplitude of the first stirring member 210 and the second stirring member 220 to be larger, and especially, compared to the case that the rotation directions of the first stirring member 210 and the second stirring member 220 are the same and the rotation speeds thereof are different, or the case that the first stirring member 210 and the second stirring member 220 are relatively static, when the first stirring member 210 and the second stirring member 220 are driven to rotate by the same energy consumption, the rotation directions of the first stirring member 210 and the second stirring member 220 are opposite, so that the stirring effect of the slurry may be better, and further, the heat exchange efficiency may be improved.

Referring to fig. 1 to 3, fig. 2 is a schematic structural diagram of a first stirring member 210 of a dispersive heat exchange device 100 according to some embodiments of the present application. Fig. 3 is a schematic structural diagram of the second stirring member 220 of the dispersive heat exchange device 100 according to some embodiments of the present application. In some embodiments, the first stirring member 210 has a stirring sidewall 211 rotatable with respect to the pipe member 120. The agitating sidewall 211 is provided with at least one through hole 212. The second stirring member 220 is rotatably disposed on a side of the stirring sidewall 211 away from the pipe 120.

The stirring side wall 211 may be an annular stirring side wall 211, a semicircular stirring side wall 211, or a stirring side wall 211 having another shape. When the stirring sidewall 211 rotates relative to the pipe 120, the slurry around the stirring sidewall 211 can be driven to move, so as to stir the slurry.

Because the stirring side wall 211 is provided with at least one through hole 212, the spaces on two sides of the stirring side wall 211 can be communicated, and the slurry can pass through the through hole 212 to enter another space. While the slurry passes through the through-hole 212, the sidewall of the through-hole 212 shears the slurry to stir the slurry.

In some embodiments, the through hole 212 may be a strip-shaped through hole 212, and the length direction of the through hole 212 may be the same as the axial direction of the pipe 120, the radial direction of the pipe 120, or other directions, and only the sidewall of the through hole 212 may shear the slurry.

In some embodiments, a plurality of through holes 212 may be provided, and the plurality of through holes 212 may be distributed on the stirring sidewall 211 in an array, an irregular distribution, or other distribution. The through holes 212 may be all the same size or different sizes, and may be set according to actual conditions. The plurality of through holes 212 may be provided such that the agitation side wall 211 performs shear agitation of the slurry as much as possible during rotation.

In some embodiments, the first stirring member 210 is a cylindrical stirring member and the second stirring member 220 is a screw-shaped stirring member. The second stirring member 220 is positioned at the middle of the first stirring member 210. The through hole 212 is formed in the side wall of the cylindrical stirring member. Furthermore, in other embodiments, the second stirring member 220 may also be a propeller type stirring member, a turbine type stirring member, or an anchor type stirring member.

The above arrangement can make the second stirring member 220 stir the slurry and push the slurry to move, and in the slurry moving process, the second stirring member 220 makes the slurry have a centrifugal force moving towards the first stirring member 210, so as to make the slurry move towards the space between the cylindrical stirring member and the pipe wall of the pipe fitting 120. Further, the shearing mixing of the slurry between the cylindrical stirring member and the pipe wall of the pipe 120 is promoted, and the slurry in the cylindrical stirring member can be uniformly mixed under the stirring of the screw-shaped stirring member. Due to the design, the dead angle of stirring can be reduced as much as possible, the stirring effect is improved, and the heat exchange efficiency is further improved.

Specifically, in some embodiments, the first stirring member 210 includes a first driving portion 213 and a first rotating portion 214. The first driving part 213 is used for driving the first rotating part 214 to rotate relative to the pipe member 120. The first driving part 213 may be a motor or a rotary cylinder, or may be another driving element. The outer wall of the first rotating portion 214 is the stirring side wall 211. The first driving part 213 is located at an outer surface of the case, and the first rotating part 214 is located at the inner passage 130 or the outer passage 140 in the case. The first rotating part 214 is driven by the first driving part 213 to rotate, so that the first stirring member 210 stirs the slurry.

In some embodiments, the second stirring member 220 includes a second driving portion 221 and a second rotating portion 222. The second driving part 221 is used for driving the second rotating part 222 to rotate relative to the pipe member 120. The second driving unit 221 may be a motor or a rotary cylinder, or may be another driving element. The outer wall of the second rotating portion 222 is the stirring side wall 211. The second driving part 221 is located on the outer surface of the case, and the second rotating part 222 is located on the inner passage 130 or the outer passage 140 in the case. The second driving portion 221 drives the second rotating portion 222 to rotate, so that the second stirring member 220 stirs the slurry.

When the first stirring member 210 is a cylindrical stirring member and the second stirring member 220 is a screw-shaped stirring member, the first driving part 213 and the second driving part 221 are respectively located at two opposite sides of the housing 110. Such an arrangement may facilitate the mounting of the first stirring member 210 and the second stirring member 220 to the housing 110.

In some embodiments, the second stirring member 220 is disposed coaxially with the first stirring member 210. Due to the arrangement, the first stirring piece 210 and the second stirring piece 220 can be conveniently rotated, the slurry between the first stirring piece 210 and the second stirring piece 220 is basically uniformly distributed, the stirring effect of the slurry is improved, and the heat exchange efficiency is further improved. In some other embodiments, the second stirring member 220 and the first stirring member 210 may be disposed non-coaxially, for example, they may be disposed in parallel and spaced apart.

In some embodiments, the number of the pipes 120 may be at least two, each pipe 120 is spaced apart, the liquid inlet end of each pipe 120 is connected, and the liquid outlet end of each pipe 120 is connected. The number of the pipe fittings 120 is increased, the amount of cooling slurry in unit time can be increased, the cooling time is shortened, the production efficiency of the slurry is improved, and therefore the cost is reduced.

In addition, in some embodiments, the number of the pipe 120 may also be one, and one pipe 120 may be disposed along the vertical direction of the housing 110, or may be disposed in a bent and folded manner, and may be adjusted according to actual situations.

In other embodiments, the stirring assembly 200 may include only one stirring member, for example, a screw-type stirring member may be used. The stirring member may rotate relative to the pipe member 120 to stir the slurry.

In other embodiments, the stirring assembly 200 may also include more than two stirring members. For example, three or more screws arranged in parallel at intervals can be selected, the rotating speed and the rotating direction of each screw can be different, and the screws can shear the slurry to realize the stirring of the slurry. Two or more screws arranged at intervals can be arranged in one cylindrical stirring piece to realize the stirring of the slurry.

In some embodiments, the inner layer channel 130 or the outer layer channel 140 for passing the glue solution may also be provided with at least one stirring assembly 200, and the stirring assembly 200 may stir the glue solution, so that the glue solution at a lower temperature in the middle of the channel is close to the pipe wall of the pipe 120, thereby facilitating heat exchange.

Referring to fig. 4, in some embodiments, fig. 4 is a schematic structural diagram of a stirring system according to some embodiments of the present application. The blending system may also include a cooling recovery assembly 500. The cooling and recovering assembly 500 is communicated with a glue discharging port 413 of the glue solution stirring device 400. The cooling recovery assembly 500 is used to store and cool the glue. The glue solution is stored through the cooling and recycling assembly 500, so that the glue solution which is not required to be put into the next production step after being heated up by heat exchange is temporarily stored, and can be recycled into the glue solution stirring device 400 after being cooled to room temperature, so that circulation can be facilitated.

In some embodiments, a tee (not shown) may be connected to the glue discharging port 413 of the glue solution stirring apparatus 400, and an opening of the tee is communicated with the glue discharging port 413, so that the tee is connected to the glue solution stirring apparatus 400. The second opening of the tee can be communicated with the cooling recovery assembly 500 to facilitate the recovery of the glue solution. The third opening of the tee joint can be used for discharging glue solution so as to facilitate the subsequent preparation of the glue solution after the temperature is increased.

In some other embodiments, the glue solution stirring apparatus 400 may also be provided with a glue discharging port 413 and a glue solution outlet (not shown in the figures). The glue discharging port 413 is communicated with the cooling recovery assembly 500, and the glue solution outlet can be communicated with glue solution subsequent process equipment so as to prepare the slurry.

In some embodiments, the cooling recovery assembly 500 includes at least one cooling pond 520. The cooling tank 520 is used for storing glue solution. Can store the glue solution through cooling tank 520 to make the glue solution cool down naturally, the reuse of the glue solution of being convenient for, compare in other cooling moreover and retrieve subassembly 500, cooling tank 520 need not to increase extra heat abstractor, and the cost is lower.

In some embodiments, the cooling recovery assembly 500 may include three cooling pools 520 connected in series, a primary cooling pool 521, a secondary cooling pool 522, and a tertiary cooling pool 523. The primary cooling tank 521 can be communicated with the glue discharging port 413 of the glue solution stirring tank 410. The primary cooling tank 52 is used for cooling the excessive high-temperature glue solution discharged from the glue solution stirring tank 410. The high-temperature glue solution is cooled to a certain temperature in the primary cooling tank 521, and then can enter the secondary cooling tank 522. The glue solution is cooled in the secondary cooling tank 522, and after being cooled to a certain temperature, the glue solution can enter the tertiary cooling tank 523. The glue solution is kept standing in the tertiary cooling tank 523 and cooled to normal temperature, and then can be continuously put into the glue solution stirring tank 410. The storage capacity of high-temperature glue liquid can be increased by arranging the multistage cooling tank 520, the glue liquid can be cooled in multiple stages, the glue liquid with similar temperature can be conveniently cooled together, heat conduction between the glue liquid due to new high-temperature glue liquid input is reduced, and the temperature of the whole glue liquid is not easy to decrease.

In some embodiments, the cooling recovery assembly 500 may include a glue bath 510. The liquid inlet of the glue solution tank 510 is communicated with the liquid outlet of the cooling tank 520. The liquid outlet of the glue solution tank 510 is communicated with the glue inlet 412 of the glue solution stirring device 400. The glue reservoir 510 may store a normal temperature glue. The glue solution tank 510 is arranged to introduce the recovered glue solution and the newly prepared glue solution into the glue solution stirring device 400, so that the recovered glue solution and the newly prepared glue solution can be mixed conveniently.

According to some embodiments of the present application, there is provided a heat exchanger device 100, which includes a housing 110 and three pipes 120 disposed in the housing 110, wherein the number of the pipes 120 is three, and the three pipes 120 are disposed in parallel and spaced apart. The inlet ends of all the pipe elements 120 are communicated, and the outlet ends of all the pipe elements 120 are communicated. The pipe member 120 forms an inner passage 130, and the inner passage 130 may pass the slurry. The shell 110 and the pipe wall of the pipe member 120 form an outer layer channel 140, and the outer layer channel 140 can pass through glue. Each pipe member 120 is provided therein with a set of stirring assemblies 200, and each stirring assembly 200 includes a first stirring member 210 and a second stirring member 220 coaxially disposed. The first stirring member 210 is a cylindrical stirring member, the second stirring member 220 is a screw-shaped stirring member, the second stirring member 220 is located in the middle of the first stirring member 210, and the rotation direction of the second stirring member 220 is opposite to that of the first stirring member 210. When thick liquids pass inlayer passageway 130, carry out the heat exchange with the lower glue solution of outer passageway 140's temperature to cooling down the thick liquids temperature, stirring subassembly 200 stirs when making thick liquids temperature reduction, and it is long when having shortened the stirring that thick liquids are located thick liquids agitated vessel 300 to a certain extent, reduce cost.

According to some embodiments of the present application, the present application provides a stirring system, which includes the aforementioned dispersing and heat exchanging device 100, slurry stirring device 300, glue solution stirring device 400, and cooling recovery assembly 500.

The slurry outlet 311 of the slurry stirring tank 310 is communicated with the inlet of the pipe 120 of the dispersion heat exchange device 100 to convey the high-temperature slurry obtained by stirring into the dispersion heat exchange device 100, and the slurry return 314 of the slurry stirring tank 310 is communicated with the outlet of the pipe 120 of the dispersion heat exchange device 100 to convey the slurry with reduced temperature after heat exchange back into the slurry stirring tank 310. The glue outlet 411 of the glue solution stirring tank 410 can be communicated with the shell 110 of the dispersing heat exchange device 100 to convey the normal-temperature glue solution into the outer-layer channel 140 of the dispersing heat exchange device 100. The glue discharging ports 413 of the glue solution stirring tank 410 are communicated with the cooling pools 520 of the cooling recovery assembly 500, and the number of the cooling pools 520 in the cooling recovery assembly 500 is three. Wherein, the liquid outlet of the tertiary cooling tank 523 is communicated with the liquid inlet of the glue solution tank 510, and the liquid outlet of the glue solution tank 510 is communicated with the glue inlet 412 of the glue solution stirring device 400.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The dispersing heat exchange device is characterized by comprising a shell (110) and a pipe (120) arranged in the shell (110), wherein a pipe cavity of the pipe (120) forms an inner-layer channel (130), the shell (110) and the outer wall of the pipe (120) form an outer-layer channel (140), the inner-layer channel (130) is used for allowing slurry or glue solution to pass through one of the two, the outer-layer channel (140) is used for allowing slurry or glue solution to pass through the other of the two, the dispersing heat exchange device (100) comprises a stirring assembly (200), and the stirring assembly (200) is used for stirring slurry.

2. A decentralized heat exchange device according to claim 1, wherein the stirring assembly (200) comprises a first stirring member (210) and a second stirring member (220) which are arranged at a distance, and the first stirring member (210) is movable relative to the second stirring member (220).

3. A decentralized heat exchange device according to claim 2, characterized in that the first stirring element (210) rotates in the opposite direction to the second stirring element (220).

4. A decentralized heat exchange device according to claim 2, characterized in that the first stirring element (210) has a stirring side wall (211) rotatable with respect to the tubular element (120), the stirring side wall (211) being provided with at least one through hole (212); the second stirring piece (220) is rotatably arranged on one side of the stirring side wall (211) far away from the pipe fitting (120).

5. A decentralized heat exchange device according to claim 2, wherein the first stirring element (210) is a cylindrical stirring element and the second stirring element (220) is a screw-shaped stirring element; the second stirring member (220) is located at the middle of the first stirring member (210).

6. A decentralized heat exchange device according to claim 5, characterized in that the second stirring element (220) is arranged coaxially with the first stirring element (210).

7. A decentralized heat exchange device according to claim 6, characterized in that the gap between the first stirring element (210) and the second stirring element (220) is 0.5mm-2 mm;

and/or the clearance between the first stirring piece (210) and the pipe wall of the pipe fitting (120) is 0.5mm-2 mm.

8. A decentralized heat exchange device according to claim 1, wherein the number of said pipes (120) is at least two, said pipes (120) are arranged at intervals, the liquid inlet ends of all said pipes (120) are connected, and the liquid outlet ends of all said pipes (120) are connected.

9. A stirring system for stirring battery slurry and glue solution, characterized by comprising the dispersive heat exchange device (100) of any one of claims 1 to 8, a slurry stirring device (300) and a glue solution stirring device (400); one of the inner layer channel (130) and the outer layer channel (140) is communicated with the discharge hole of the slurry stirring device (300); the other one of the inner layer channel (130) and the outer layer channel (140) is communicated with a discharge hole of the glue solution stirring device (400).

10. The mixing system of claim 9, wherein the discharge port of the slurry mixing device (300) is in communication with the feed port of the inner passage (130), and the discharge port of the inner passage (130) is in communication with the feed back port of the slurry mixing device (300).

11. The stirring system of claim 10, further comprising a cooling recovery assembly (500), wherein the cooling recovery assembly (500) is communicated with a recovery port of the glue solution stirring device (400), and the cooling recovery assembly (500) is used for storing and cooling the glue solution.

12. Stirring system according to claim 11, wherein said cooling recovery assembly (500) comprises at least one cooling tank (520), said cooling tank (520) being adapted to store a glue solution.

13. The stirring system of claim 12, wherein the cooling recovery assembly (500) comprises a glue solution reservoir (510), a liquid inlet of the glue solution reservoir (510) is communicated with a liquid outlet of the cooling reservoir (520), and a liquid outlet of the glue solution reservoir (510) is communicated with a glue inlet (412) of the glue solution stirring apparatus (400).