CN212915443U

CN212915443U - Lithium battery coating and feeding combined device

Info

Publication number: CN212915443U
Application number: CN202021189556.7U
Authority: CN
Inventors: 王长江
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-04-09
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a lithium cell coating feed composite set, include the agitator that is linked together with charge-in pipeline, the agitator is connected with the filter through the transfer jar, install at least one ultrasonic probe in the agitator, install at least one heating pipe in the transfer jar. The stirrer of the utility model combines the servo motor and the first ultrasonic probe to jointly disperse the slurry polymer in the slurry, thereby improving the fineness of the slurry; the utility model provides a transfer jar carries out thermostatic control to its self jointly through heater and temperature sensor, and in addition, the vacuum pump of installing on the transfer jar makes to be vacuum state in the cavity of transfer jar, has further strengthened the constant temperature performance of transfer jar. Thereby effectively improving the quality of the slurry and solving the problems of secondary agglomeration of the slurry and temperature reduction in the transportation process after the slurry is dispersed and insulated in the prior art.

Description

Lithium battery coating and feeding combined device

Technical Field

The utility model relates to a lithium cell production field, concretely relates to lithium cell coating feed composite set.

Background

The power battery for the electric automobile is one of the key restriction factors for the rapid development of the electric automobile industry, and particularly, the key material technology of the power battery, the development of the production process of the electric core of the power battery, the power battery pack and the management system thereof are all main problems for restricting the development of the electric automobile industry.

The coating and flaking process is an essential part in the manufacture of lithium batteries, and the slurry required by coating is an important part in the coating process. At present, the defects of common coating such as scraping belt, pinholes and sedimentation are closely related to the source of slurry, although the slurry mixing is subjected to dispersion treatment, the slurry mixing applied to the coating process can generate heat loss and the slurry can be secondarily agglomerated into particles in the flowing process, so that the coating process has the defects.

Disclosure of Invention

An object of the utility model is to provide a lithium cell coating feed composite set to solve the problem that proposes among the above-mentioned background art. The purposes that in the prior art, after the slurry is dispersed and insulated, the temperature of the slurry is reduced in the transportation process and the slurry is agglomerated for the second time are achieved.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a lithium cell coating feed composite set, includes the agitator that is linked together with charge-in pipeline, the agitator is connected with the filter through the transfer jar, its characterized in that, install at least one first ultrasonic transducer in the agitator, install at least one heating pipe in the transfer jar.

As a further aspect of the present invention: the stirrer is of a double-layer structure consisting of an inner wall and an outer wall, and the first ultrasonic probe is arranged in the stirrer and/or a cavity between the inner wall and the outer wall; the top end of the stirrer is provided with a servo motor, and a driving shaft of the servo motor is provided with at least one impeller; and the feeding pipeline is provided with a feeding electromagnetic valve.

As a further aspect of the present invention: the transfer tank is of a double-layer structure consisting of an inner wall and an outer wall, the transfer tank is connected with a vacuum pump, and a temperature sensor is installed in the transfer tank.

As a further aspect of the present invention: a magnetic rod filter element is arranged in the filter, and a second ultrasonic probe is arranged on the magnetic rod filter element; and a pressure gauge is arranged on a discharge pipe of the filter.

As a further aspect of the present invention: a pneumatic diaphragm pump is arranged on a communication pipeline between the stirrer and the transfer tank, and a screw pump is arranged on a communication pipeline between the transfer tank and the filter; and the stirrer and the transfer tank are both provided with a liquid level sensor and a foot margin support.

As a further aspect of the present invention: the periphery of a communication pipeline between the transfer tank and the filter is coated with heat insulation cotton.

As a further aspect of the present invention: the material of bar magnet filter core is stainless steel pipe and high B value tombarthite alloy neodymium iron boron.

As a further aspect of the present invention: the stirrer is made of hard stainless steel; the heating pipe is an electric heating pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has novel structure, the stirrer of the utility model combines the servo motor and the first ultrasonic probe to jointly disperse the slurry polymer in the slurry, thereby improving the fineness of the slurry; the transfer tank of the utility model controls the constant temperature of the transfer tank through the heater and the temperature sensor, in addition, the vacuum pump arranged on the transfer tank makes the cavity of the transfer tank in a vacuum state, thereby further enhancing the constant temperature performance of the transfer tank; the utility model provides a filter, its bar magnet filter core adopt stainless steel and high B value tombarthite alloy neodymium iron boron material to have stronger adsorptivity, have strengthened the filter effect of filter. The utility model discloses an above-mentioned improvement can effectively improve the quality of thick liquids, has solved prior art and has dispersed the heat preservation back to thick liquids, appears thick liquids secondary agglomeration and the problem that the temperature reduces in the transportation once more.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the stirrer of the present invention;

FIG. 3 is a schematic structural view of a transfer tank of the present invention;

FIG. 4 is a schematic structural view of a filter according to the present invention;

in the figure: 1-stirrer, 11-servo motor, 12-driving shaft, 13-impeller, 14-feeding electromagnetic valve, 2-pneumatic diaphragm pump, 3-stirrer, 31-heating pipe, 32-temperature sensor, 33-vacuum pump, 4-screw pump, 5-filter, 51-magnetic rod filter element, 6-first ultrasonic probe, 61-second ultrasonic probe, 7-liquid level sensor, 8-ground support and 9-pressure gauge.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in an embodiment of the present invention, a lithium battery coating and feeding assembly includes a stirrer 1 communicated with a feeding pipeline, the stirrer 1 is connected with a filter 5 through a transfer tank 3, at least one first ultrasonic probe 6 is installed in the stirrer 1, and at least one heating pipe 31 is installed in the transfer tank 3. The heating pipe 31 is used for heating the slurry in the transfer tank 3.

Preferably, four first ultrasonic probes 6 are provided, as shown in fig. 1 and 2, two of which are provided at the upper part of the inner cavity of the stirrer 1, and the other two are provided at the lower part of the cavity between the inner wall and the outer wall of the stirrer 1. The number of the heating pipes 31 can be two, as shown in fig. 1 and 3, and the heating pipes are uniformly distributed in the transfer tank 3, so that the heating uniformity is improved.

The heating pipe 31 can collect the real-time temperature of the slurry through the thermocouple temperature meter to control the on/off and the reasonable temperature value, for example, PID temperature control is performed through PLC, so that the slurry reaches the reasonable temperature value.

Specifically, the stirrer 1 is of a double-layer structure consisting of an inner wall and an outer wall, the first ultrasonic probe 6 is arranged in the stirrer 1 or in a cavity between the inner wall and the outer wall, and is preferably respectively arranged at the upper part of an inner cavity of the stirrer 1 and the lower part of the cavity between the inner wall and the outer wall, so that the stirring effect is improved, and the fineness of the slurry is uniform; a servo motor 11 is installed at the top end of the stirrer 1, and at least one impeller 13 is installed on a driving shaft 12 of the servo motor 11; the feeding pipeline is provided with a feeding electromagnetic valve 14.

Specifically, the transfer tank 3 is a double-layer structure consisting of an inner wall and an outer wall, the transfer tank 3 is connected with a vacuum pump 33, and a temperature sensor 32 is installed in the transfer tank 3. The vacuum pump 33 is used for pumping the gas in the transfer tank 3 to enable the interior of the transfer tank to be in a vacuum state, and the constant temperature performance of the transfer tank 3 is improved.

Specifically, a magnetic rod filter element 51 is arranged in the filter 5, and a second ultrasonic probe 61 is mounted on the magnetic rod filter element 51; and a pressure gauge 9 is arranged on a discharge pipe of the filter 5. The second ultrasonic probe 61 is arranged at the top end of the magnetic rod filter element 51, so that the magnetic rod filter element 51 is vibrated by ultrasonic waves generated by the second ultrasonic probe 61, and the purpose of self-cleaning the magnetic rod filter element 51 is achieved. The pressure gauge 9 is used for detecting the pressure value in the discharge pipe of the filter 5, and the normal circulation of the slurry is ensured.

Specifically, a communication pipeline between the stirrer 1 and the transfer tank 3 is provided with a pneumatic diaphragm pump 2, and a communication pipeline between the transfer tank 3 and the filter 5 is provided with a screw pump 4; and the stirrer 1 and the transfer tank 3 are both provided with a liquid level sensor 7 and a foot margin support 8. The liquid level sensor 7 is used for detecting the liquid level of the slurry in the transfer tank 3, and further controlling the running speed of the servo motor 11 in the slurry stirrer 1 to ensure the slurry stirring effect.

Specifically, the periphery of a communication pipeline between the transfer tank 3 and the filter 5 is coated with heat insulation cotton. The heat preservation cotton is attached to the slurry circulation pipeline to keep the temperature of the slurry, so that the situation that the viscosity of particles in the slurry is increased to generate secondary agglomeration due to temperature reduction in the circulation process is avoided.

Specifically, the magnetic rod filter element 51 is made of stainless steel tubes and high-B-value rare earth alloy neodymium iron boron. The preferred stainless steel of material of bar magnet filter core 51 and high B value tombarthite alloy neodymium iron boron is because when adopting high B value tombarthite alloy neodymium iron boron as the magnetism source, its magnetic force is powerful, and the effect of adsorbing iron is better and its and stainless steel mix and use can make bar magnet filter core 51's life longer.

Specifically, the stirrer 1 is made of hard stainless steel; the heating pipe 31 is an electric heating pipe. The stirrer 1 is made of stainless steel because hard stainless steel has high hardness and good hot hardness, so that the service life of the stirrer 1 can be prolonged.

The working process is as follows:

1. and (3) stirring: during thick liquids at first get into agitator 1 through charge-in pipeline from closing the thick liquids process, servo motor 11 can drive the impeller 13 on its drive shaft 12 at the uniform velocity and rotate this moment, and the granule in the thick liquids is cuted by impeller 13 and is refined, and the ultrasonic vibration is carried out inside thick liquids to first ultrasonic transducer 6 of arrangement in impeller 13 both sides simultaneously, further smashes the great solid particle in the thick liquids, avoids appearing the condition of blade large granule scratch, scratch in the coating process. In addition, the first ultrasonic probe 6 arranged in the cavity between the inner wall and the outer wall of the stirrer 1 also starts to vibrate the inner wall of the stirrer 1, so that the condition that a large amount of slurry is adhered to the inner wall of the stirrer 1 under the condition that the slurry does not stop is ensured, and the task of cleaning the stirrer 1 daily is lightened.

2. Heating process: after the thick liquids come out from agitator 1, provide power through pneumatic diaphragm pump 2 and transport the thick liquids, guarantee that the thick liquids can get into transfer tank 3 steadily, the level sensor 7 at 3 tops of transfer tank also can carry out real-time supervision to the liquid level of jar internal portion thick liquids simultaneously, and the stability of thick liquids liquid level is guaranteed to the compressed air pressure of control pneumatic diaphragm pump 2. When the slurry enters the transfer tank 3 and the liquid level reaches a set lower limit, the temperature sensor 32 in the transfer tank 3 detects the slurry, and if the temperature does not reach a process (set) value, the heating pipe 31 works to heat the slurry in the transfer tank 3; when the temperature reaches the process (set) value, the heating pipe 31 stops working, thereby ensuring the constant temperature of the tank body. In addition, the vacuum pump 33 arranged on the transfer tank 3 can pump air in the inner cavity of the transfer tank 3 after being electrified to ensure that the cavity is in a vacuum state, so that no bubbles are generated in the slurry; thereby further enhancing the constant temperature performance of the transfer tank 3 and preventing the phenomena of large viscosity change and sedimentation when the slurry enters the coating film cavity.

3. And (3) filtering: after the slurry with stable temperature comes out of the transfer tank 3, the slurry is supplied with power through the screw pump 4 for transportation, so that the slurry can stably enter the filter 5. At this time, the magnetic rod filter element 51 in the filter 5 absorbs iron in the slurry when the power is turned on, thereby achieving the effect of filtering the slurry. In addition, under the condition that the magnetic rod filter element 51 is electrified, the second ultrasonic probe 61 arranged above the magnetic rod filter element 5 can continuously vibrate the magnetic rod filter element to ensure the self-cleaning of the magnetic rod filter element 51 and prevent the magnetic rod filter element from being blocked. After slurry is filtered, the pressure gauge 9 arranged on the discharge pipe of the filter 5 can display the pressure in the discharge pipe at any time, and the condition that whether the magnetic rod filter element 51 in the filter 5 is blocked or not can be indirectly reflected according to the display value of the pressure gauge 9, and when the pressure value is greater than the process (set), vibration can be increased by increasing ultrasonic energy, so that cleaning treatment on the magnetic rod filter element 51 is increased.

Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.

Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The utility model provides a lithium cell coating feed composite set, includes agitator (1) that is linked together with charge-in pipeline, agitator (1) is connected with filter (5) through transfer tank (3), its characterized in that, install at least one first ultrasonic transducer (6) in agitator (1), install at least one heating pipe (31) in transfer tank (3).

2. The coating and feeding combination device for lithium batteries according to claim 1, characterized in that the stirrer (1) has a double-layer structure of inner and outer walls, and the first ultrasonic probe (6) is respectively arranged in the inner part of the stirrer (1) and/or in a cavity between the inner and outer walls; a servo motor (11) is installed at the top end of the stirrer (1), and at least one impeller (13) is installed on a driving shaft (12) of the servo motor (11); and a feeding electromagnetic valve (14) is arranged on the feeding pipeline.

3. The coating and feeding combination device for the lithium battery as claimed in claim 1, wherein the transfer tank (3) has a double-layer structure consisting of an inner wall and an outer wall, the transfer tank (3) is connected with a vacuum pump (33), and a temperature sensor (32) is installed in the transfer tank (3).

4. The coating and feeding combination device for lithium batteries according to claim 1, characterized in that a magnetic rod filter element (51) is arranged in the filter (5), and a second ultrasonic probe (61) is mounted on the magnetic rod filter element (51); and a pressure gauge (9) is arranged on a discharge pipe of the filter (5).

5. The coating and feeding combination device for lithium batteries according to claim 1, characterized in that a pneumatic diaphragm pump (2) is arranged on the communication pipeline between the stirrer (1) and the transit tank (3), and a screw pump (4) is arranged on the communication pipeline between the transit tank (3) and the filter (5); and the stirrer (1) and the transfer tank (3) are both provided with a liquid level sensor (7) and a foot margin support (8).

6. The coating and feeding combination device for lithium batteries according to claim 1, characterized in that the periphery of the communication pipe between the transfer tank (3) and the filter (5) is coated with heat insulation cotton.

7. The coating and feeding combination device for lithium batteries according to claim 4, wherein the magnetic rod filter element (51) is made of stainless steel tube and high B value rare earth alloy NdFeB.

8. The coating and feeding combination device for lithium batteries according to claim 1, characterized in that the stirrer (1) is made of hard stainless steel; the heating pipe (31) is an electric heating pipe.