CN211488382U

CN211488382U - Slurry transfer device

Info

Publication number: CN211488382U
Application number: CN201922193078.0U
Authority: CN
Inventors: 刘冯新; 李奎; 娄永文
Original assignee: Kunshan Ju Innovative Energy Technology Co Ltd
Current assignee: Kunshan Ju Innovative Energy Technology Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-09-15
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses a thick liquids transfer device, include: the slurry mixing device comprises a body, a stirring part and a stirring part, wherein the body is provided with a slurry inlet and a slurry outlet; the slurry circulating part is characterized in that the feeding end of the slurry circulating part is connected with the lower part of the body, the discharging end of the slurry circulating part is connected with the upper part of the body, a valve is arranged at the feeding end, a power part is arranged on the slurry circulating part and close to the feeding end, a defoaming part, a temperature control part and a temperature detection part are arranged on the slurry circulating part, and the temperature detection part is connected with the temperature control part. By adopting the slurry transfer device, the consistency of slurry components can be kept under the action of the stirring piece and the slurry circulating part, bubbles in the slurry can be removed under the action of the defoaming piece, the temperature of the slurry can be stabilized under the combined action of the temperature detection piece and the temperature control piece, the stability of the slurry in the coating process is obviously improved, and the quality of the obtained pole piece is improved.

Description

Slurry transfer device

Technical Field

The utility model belongs to the technical field of lithium ion battery manufacturing, particularly, the utility model relates to a thick liquids transfer device.

Background

The slurry with qualified quality is obtained through homogenate in the production and manufacturing process of the lithium ion power battery, the slurry obtained through homogenate needs to be temporarily stored through a transfer tank and then is sent to a coating machine for coating, the storage quality of the slurry in the transfer tank is important for the next coating process, the consistency of the appearance, the thickness and the surface density of a pole piece can be influenced, and the quality of the lithium ion battery is further influenced.

When lithium battery slurry enters a transfer tank, if bubbles carried in the slurry cannot be effectively removed, the coating film often has the defects of bubbles, exposed foils and the like during coating, and the quality of a pole piece is abnormal. The current defoaming technical scheme is that negative pressure is arranged in the transfer tank, and the defoaming effect of the scheme on the large-volume transfer tank is incomplete, and the slurry in the large-volume tank is more.

Meanwhile, the existing constant-temperature transfer tank is mainly characterized in that an interlayer, a coil pipe and other devices are arranged in the wall of the tank body to perform integral temperature control on the slurry in the tank body, and the integral temperature control is difficult to perform reliable control on the temperature of the slurry in the central part of the tank body along with the increasing volume of the transfer tank. If offer the cavity in transfer jar body inside to set up the electrothermal tube at the inside equidistance of cavity, through injection heating medium in water injection pipe to the cavity, utilize electrothermal tube heating medium, then heat for transfer jar body through heating medium, the transfer jar body of this scheme is heated evenly, and the stability more of temperature, but still exists the problem that can not carry out reliable control to the thick liquids temperature of jar body central point.

Therefore, the existing transfer tank for lithium battery slurry needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model discloses an aim at provides a thick liquids transfer device. By adopting the slurry transfer device, the consistency of slurry components can be kept under the action of the stirring piece and the slurry circulating part, bubbles in the slurry can be removed under the action of the defoaming piece, the temperature of the slurry can be stabilized under the combined action of the temperature detection piece and the temperature control piece, the stability of the slurry in the coating process is obviously improved, and the quality of the obtained pole piece is improved.

In an aspect of the utility model, the utility model provides a thick liquids transfer device, according to the utility model discloses an embodiment, the device includes:

the slurry mixing device comprises a body, a stirring part and a stirring part, wherein the body is provided with a slurry inlet and a slurry outlet;

the slurry circulating part is characterized in that the feeding end of the slurry circulating part is connected with the lower part of the body, the discharging end of the slurry circulating part is connected with the upper part of the body, a valve is arranged at the feeding end, a power part is arranged on the slurry circulating part and close to the feeding end, a defoaming part, a temperature control part and a temperature detection part are arranged on the slurry circulating part, and the temperature detection part is connected with the temperature control part.

According to the utility model discloses thick liquids transfer device, this thick liquids transfer device include the thick liquids circulation portion that body and feed end and discharge end all link to each other with the body, under the combined action of the valve that sets up on thick liquids circulation portion and power spare, dynamic circulation is realized to this internal thick liquids, avoids this internal thick liquids to appear because of the thick liquids different poor problem of thick liquids uniformity still appears in the position that the thick liquids were located under the stirring effect of stirring spare. Furthermore, a defoaming piece is further arranged in the slurry circulating part, and bubbles in the slurry can be eliminated under the action of the defoaming piece, so that the defects of bubbles, exposed foils and the like in coating of the slurry in the coating process are avoided, the quality of the slurry is improved, and the quality of a pole piece is improved. Furthermore, the temperature detection part and the temperature control part are arranged in the slurry circulating part, the temperature detection part is connected with the temperature control part, the temperature detection part can detect the temperature of the slurry in the slurry circulating part and send the detected temperature information to the temperature control part, the temperature control part can compare the temperature information with the set temperature, when the real-time temperature of the slurry is higher than the set temperature, the cooling function of the temperature control part can be started to reduce the temperature of the slurry, so that the temperature of the slurry is gradually close to the set temperature, and when the real-time temperature of the slurry is lower than the set temperature, the heating function of the temperature control part can be started to improve the temperature of the slurry, so that the temperature of the slurry is gradually close to the set temperature, finally, the temperature of the slurry conveyed to be coated is stable, and the reliable control of the temperature of the slurry is realized. Therefore, by adopting the slurry transfer device, the consistency of the components of the slurry can be kept under the action of the stirring piece and the slurry circulating part, the bubbles in the slurry can be removed under the action of the defoaming piece, the temperature of the slurry can be stabilized under the combined action of the temperature detection piece and the temperature control piece, the stability of the slurry in the coating process is obviously improved, and the quality of the obtained pole piece is improved.

In addition, according to the present invention, the slurry transfer device according to the above embodiment may further have the following additional technical features:

optionally, the slurry circulation is provided with a flow meter.

Optionally, the temperature detecting element is selected from at least one of a resistance temperature sensor and a thermocouple temperature sensor, an infrared thermometer and a thermometer.

Optionally, the foam breaker is selected from at least one of an ultrasonic foam breaker and an electric foam breaker, a negative pressure vacuum foam breaker, a centrifugal foam breaker, a hydraulic foam breaker, and a pneumatic foam breaker.

Optionally, the feed end of the slurry circulation section is connected to the bottom of the body.

Optionally, an indirect heat exchange element is arranged in the temperature control element, and the indirect heat exchange element is provided with a heat exchange medium inlet and a heat exchange medium outlet.

Optionally, the indirect heat exchange element is a coil or jacket.

Optionally, the coil is disposed on an interior or exterior wall of the temperature control member, the coil being a helical coil.

Optionally, the jacket is disposed on an outer wall of the temperature control member.

Optionally, the flow meter is connected to the valve.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a slurry relay apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a slurry relay apparatus according to still another embodiment of the present invention;

fig. 3 is a schematic structural view of a slurry relay apparatus according to still another embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the 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, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In an aspect of the utility model, the utility model provides a thick liquids transfer device, according to the utility model discloses an embodiment, refer to fig. 1, the device includes: a body 100 and a slurry circulation portion 200.

According to the utility model discloses an embodiment, body 100 has thick liquids entry 101 and thick liquids export 102, and the inside stirring piece 11 that is equipped with of body, and is suitable for the entering, going out and the stirring of thick liquids. The inventor finds that the slurry in the previous process can be input into the body through the slurry inlet, the slurry with high consistency, no air bubbles and stable temperature in the body can be output to the next process through the slurry outlet, and further, the slurry in the body can be stirred through the stirring piece, so that the components of the slurry in different parts of the body are kept consistent. It should be noted that the specific shape and material of the body are not particularly limited, and those skilled in the art can select the shape and material according to actual needs.

According to the utility model discloses an embodiment, the feed end 210 of thick liquids circulation portion 200 links to each other with the lower part of body 100, the discharge end 220 of thick liquids circulation portion 200 links to each other with the upper portion of body 100, and be equipped with valve 21 at feed end 210, be equipped with power spare 22 on the thick liquids circulation portion 200 that is close to feed end 210, be equipped with defoaming piece 23, temperature control 24 and temperature detection spare 25 on thick liquids circulation portion 200 simultaneously, temperature detection spare 25 links to each other with temperature control 24, and be suitable for the thick liquids to the body and circulate, and remove bubble and temperature control at the in-process of circulation. The inventor finds that the feeding end and the discharging end of the slurry circulating part are connected with the body, and dynamic circulation of the slurry of the body can be realized under the synergistic effect of the valve and the power part in the slurry circulating part, so that the problem that the uniformity of the slurry components is poor due to the fact that the slurry is in different positions of the body even if stirring exists in the body can be avoided. According to an embodiment of the present invention, the specific type of the power member is not particularly limited, and those skilled in the art can select the power member according to actual needs, such as a diaphragm pump. Furthermore, the consistency of the components of the slurry in the body can be further improved by connecting the feeding end of the slurry circulating part with the lower part of the body and connecting the discharging end of the slurry circulating part with the upper part of the body. Further, according to still another embodiment of the present invention, the feeding end 210 of the slurry circulation part 200 may be connected to the bottom of the body 100, thereby further improving the consistency of the slurry composition inside the body. Furthermore, under the action of the defoaming piece, bubbles in the slurry can be eliminated, so that the defects of bubbles, foil exposure and the like in coating of the slurry in the coating process are avoided, the quality of the slurry is improved, and the quality of a pole piece is further improved. According to another embodiment of the present invention, the specific type of the foam breaker is not particularly limited, and those skilled in the art can select the foam breaker according to actual needs, such as at least one selected from the group consisting of an ultrasonic foam breaker and an electric foam breaker, a vacuum foam breaker, a centrifugal foam breaker, a hydraulic foam breaker, and an air foam breaker. Furthermore, the temperature detection part and the temperature control part are arranged in the slurry circulating part, the temperature detection part is connected with the temperature control part, the temperature detection part can detect the temperature of the slurry in the slurry circulating part and send the detected temperature information to the temperature control part, the temperature control part can compare the temperature information with the set temperature, when the real-time temperature of the slurry is higher than the set temperature, the cooling function of the temperature control part can be started to reduce the temperature of the slurry, so that the temperature of the slurry is gradually close to the set temperature, and when the real-time temperature of the slurry is lower than the set temperature, the heating function of the temperature control part can be started to improve the temperature of the slurry, so that the temperature of the slurry is gradually close to the set temperature, finally, the temperature of the slurry conveyed to be coated is stable, and the reliable control of the temperature of the slurry is realized. According to another embodiment of the present invention, the specific types of the temperature detecting member and the temperature control member are not particularly limited, and may be selected by those skilled in the art according to actual needs, for example, the temperature detecting member may be selected from at least one of a resistance temperature sensor, a thermocouple temperature sensor, an infrared thermometer, and a thermometer. If an indirect heat exchange element 241 is provided in the temperature control element 24, the indirect heat exchange element 241 has a heat exchange medium inlet 2411 and a heat exchange medium outlet 2412, and is adapted to introduce a heat exchange medium into the indirect heat exchange element to raise or lower the temperature of the slurry in an indirect heat exchange manner, thereby achieving consistency and stability of the temperature of the slurry. It should be noted that the specific type of the indirect heat exchange element is not particularly limited, and those skilled in the art can select the type according to actual needs, such as a coil or a jacket. Further, the specific position of the indirect heat exchange element in the temperature control member is not particularly limited, and can be selected by those skilled in the art according to actual needs, for example, when the indirect heat exchange element is a coil, the coil can be disposed inside or on an outer wall of the temperature control member, preferably inside, and when the indirect heat exchange element is a jacket, the jacket can be disposed on an outer wall of the temperature control member. The inventor finds that the coil is arranged inside the temperature control element, so that the control of the coil on the temperature of the slurry is more timely and more uniform, and meanwhile, the heat transfer efficiency is improved, and the energy consumption is reduced. Further, the specific form of the coil is not particularly limited, and may be a spiral coil, for example. Further, the specific type of the heat exchange medium introduced into the indirect heat exchange element is not particularly limited, and may be selected by those skilled in the art according to actual needs, such as one or more selected from cooling water, a condensing agent, warm water, heat medium oil and steam.

Further, according to still another embodiment of the present invention, referring to fig. 2, in order to measure the flow rate of the slurry in the slurry circulation portion, a flow meter 26 may be provided at the slurry circulation portion 200. Further, referring to fig. 3, the flow meter 26 may be connected to the valve 21, so that the opening of the valve may be automatically adjusted according to the flow detected by the flow meter, and further the flow of the slurry in the slurry circulation portion may meet the processing requirement, for example, according to the specific types of the defoaming component and the temperature detecting component in the slurry circulation portion, an appropriate slurry flow value in the slurry circulation portion may be determined, when the real-time flow detected by the flow meter is lower than the appropriate flow value, a signal may be sent to the valve to enlarge the opening of the valve, and when the real-time flow detected by the flow meter is higher than the appropriate flow value, a signal may be sent to the valve to reduce the opening of the valve.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A slurry relay device, comprising:

2. The slurry transit apparatus according to claim 1, characterized in that the slurry circulating portion is provided with a flow meter.

3. The slurry relay according to claim 1, wherein said temperature detecting member is at least one selected from the group consisting of a resistance temperature sensor, a thermocouple temperature sensor, an infrared thermometer, and a thermometer.

4. The slurry transit apparatus of claim 1, wherein the foam breaker is selected from at least one of an ultrasonic foam breaker and an electric foam breaker, a vacuum foam breaker, a centrifugal foam breaker, a hydraulic foam breaker, and a pneumatic foam breaker.

5. The slurry transit apparatus according to claim 1, wherein a feed end of the slurry circulating section is connected to a bottom of the body.

6. The slurry relay according to claim 1, wherein an indirect heat exchange element is provided in the temperature control member, the indirect heat exchange element having a heat exchange medium inlet and a heat exchange medium outlet.

7. The slurry transit apparatus of claim 6, wherein the indirect heat exchange element is a coil or a jacket.

8. The slurry transit apparatus of claim 7, wherein the coil is disposed inside or on an outer wall of the temperature control member, and the coil is a spiral coil.

9. The slurry transit apparatus of claim 7, wherein the jacket is provided on an outer wall of the temperature control member.

10. The slurry transit apparatus of claim 2, wherein the flow meter is connected to the valve.