阅读说明：本技术 一种检测浆料稳定性的装置及其工作方法 (Device for detecting stability of slurry and working method thereof ) 是由 王增森 葛科 赵红伟 蒋倩 于 2021-08-03 设计创作，主要内容包括：本发明涉及一种检测浆料稳定性的装置及其工作方法,属于电芯制作的技术领域。它包括底座(1),所述底座(1)上设置有浆料桶体(2),所述浆料桶体(2)顶部设置开口(3)；所述浆料桶体(2)的侧壁上设置有至少一个隔离槽(4),在隔离槽(4)所在同一水平高度上,浆料桶体(2)内匹配设置凹台结构(8)；所述凹台结构(8)内设置有隔离板(5),所述凹台结构(8)的大小尺寸与隔离板(5)的尺寸相匹配;所述隔离板(5)为弧形平板结构,头部弧形半径小于尾部弧形半径,且尾部设置有把手(6)。本发明结构合理,同时配合其特定的检测工作方法,可以排除不同区域高度对浆料特性的影响,能够有效缩短评测浆料稳定性的时间。(The invention relates to a device for detecting the stability of slurry and a working method thereof, belonging to the technical field of battery core manufacturing. The slurry barrel comprises a base (1), wherein a slurry barrel body (2) is arranged on the base (1), and an opening (3) is formed in the top of the slurry barrel body (2); at least one isolation groove (4) is formed in the side wall of the slurry barrel body (2), and a concave platform structure (8) is arranged in the slurry barrel body (2) in a matching mode on the same horizontal height of the isolation groove (4); the partition plate (5) is arranged in the concave platform structure (8), the size of the concave platform structure (8) is matched with the size of the partition plate (5), the partition plate (5) is of an arc-shaped flat plate structure, the arc radius of the head part is smaller than that of the tail part, and the tail part is provided with a handle (6). The invention has reasonable structure, can eliminate the influence of the heights of different areas on the characteristics of the slurry by matching with a specific detection working method, and can effectively shorten the time for evaluating the stability of the slurry.)

1. A device for detecting slurry stability is characterized in that: the device comprises a base (1), wherein a slurry barrel body (2) is arranged on the base (1), and an opening (3) is formed in the top of the slurry barrel body (2);

at least one isolation groove (4) is formed in the side wall of the slurry barrel body (2), and a concave platform structure (8) is arranged in the slurry barrel body (2) in a matching mode on the same horizontal height of the isolation groove (4);

a partition plate (5) is arranged in the concave platform structure (8), and the size of the concave platform structure (8) is matched with the size of the partition plate (5);

the isolation plate (5) is of an arc-shaped flat plate structure, the arc radius of the head part is smaller than that of the tail part, and the tail part is provided with a handle (6).

2. The apparatus for testing the stability of slurry according to claim 1, wherein: an isolation film (7) is arranged above the opening (3) and is sealed through the isolation film (7).

3. The apparatus for testing the stability of slurry according to claim 1, wherein: the diameter of the base (1) is larger than that of the slurry barrel body (2).

4. The apparatus for testing the stability of slurry according to claim 1, wherein: the number of the isolation grooves (4) is two, and the number of the isolation plates (5) is matched with that of the isolation grooves (4).

5. A working method for detecting the stability of slurry is characterized in that:

the method comprises the following steps:

the method comprises the following steps: adding the newly stirred slurry into the slurry barrel body (2);

step two: the two isolation plates (5) are respectively inserted into the corresponding isolation grooves (4), and the whole slurry barrel body (2) is isolated into three layers, namely an upper layer, a middle layer and a lower layer;

step three: sealing the top opening of the slurry barrel body (2) through an isolation film (7), and then standing;

step four: taking out the slurry on the upper layer of the slurry barrel body (2), and testing the solid content and the viscosity of the slurry;

step five: after the upper end of the isolating plate (5) is drawn away, the slurry in the middle layer is taken out, and the solid content value and the viscosity of the slurry are tested;

step six: after the lower end of the isolating plate (5) is pumped away, taking out the lower layer of slurry, and testing the solid content value and the viscosity of the slurry in the same way;

step seven: and carrying out data processing, analysis and comparison on the solid content values and the slurry viscosities of the upper layer slurry, the middle layer slurry and the lower layer slurry to obtain results.

6. The working method for detecting the stability of the slurry according to claim 5, characterized in that: the standing time in the third step is 24 hours.

Technical Field

The invention relates to a device for detecting the stability of slurry and a working method thereof, belonging to the technical field of battery core manufacturing.

Background

In the prior art, in the manufacturing process of a battery core, the stability of the slurry at the front section directly determines the quality of a pole piece of the battery core, and the stability of the pole piece of the battery core is related to important performance parameters such as the internal resistance of a diaphragm of the pole piece, the surface density of coating, the coating quality and the like. The slurry itself tends to settle and the difference in solids content of the slurry between the middle and bottom layers in the top layer will result in a different viscosity being measured. Therefore, the viscosity of the slurry tested by the method is different corresponding to the test results of different areas, so that data distortion is caused, certain contingency is realized, and the stability of the slurry cannot be visually judged.

For example, chinese patent with patent publication number CN112973547A discloses an intelligent stirring and concentration detection device for lithium battery cell slurry, including slurry stirring device main part, feed mechanism and rabbling mechanism, slurry stirring device main part top one side is provided with feed mechanism, rabbling mechanism runs through inside slurry stirring device main part top suspension in slurry stirring device main part, slurry stirring device main part lower part is provided with the stirring base, be provided with the filter screen between slurry stirring device main part bottom and the stirring base top, the fixed supporting leg that is provided with in stirring base lower part, stirring base upper portion is seted up the sunken feed bin that is provided with, concentration monitoring device connects and is close to ejection of compact valve one end in the discharging pipe.

The device for stirring the lithium battery cell slurry and detecting the concentration of the lithium battery cell slurry, disclosed by the patent, has the advantages that the stirring efficiency is improved, the stirring effect is favorably improved, and the concentration of the slurry stirring can be ensured to meet the production requirement of a lithium battery; however, the formulation and rheological properties of the slurry itself make the viscosity less sensitive to time than the settling of the slurry, and the above patent fails to accurately test the stability.

Therefore, in order to solve the above-mentioned background problems, it is urgent to develop a device for detecting the stability of slurry and a method for operating the same.

Disclosure of Invention

The invention aims to solve the problems in the background, and provides a device for detecting the stability of slurry and a working method thereof.

The purpose of the invention is realized as follows: a device for detecting the stability of slurry comprises a base, wherein a slurry barrel body is arranged on the base, and an opening is formed in the top of the slurry barrel body;

at least one isolation groove is formed in the side wall of the slurry barrel body, and a concave platform structure is arranged in the slurry barrel body in a matching mode on the same horizontal height of the isolation groove;

be provided with the division board in the concave station structure, the big or small size and the division board size phase-match of concave station structure.

The division board is arc flat plate structure, and head arc radius is less than afterbody arc radius, and the afterbody is provided with the handle.

An isolation film is arranged above the opening and is sealed through the isolation film.

The diameter of the base is larger than that of the slurry barrel body.

The isolation groove is provided with two, and the quantity of division board matches with the isolation groove.

A working method for detecting the stability of slurry comprises the following steps:

the method comprises the following steps: adding the newly stirred slurry into a slurry barrel body;

step two: inserting the two isolation plates into the corresponding isolation grooves respectively, and isolating the whole slurry barrel body into three layers, namely an upper layer, a middle layer and a lower layer;

step three: sealing the top opening of the slurry barrel body through an isolation film, and then standing;

step four: taking out the slurry on the upper layer of the slurry barrel body, and testing the solid content and the viscosity of the slurry;

step five: after the upper end of the isolating plate is drawn away, the slurry in the middle layer is taken out, and the solid content value and the viscosity of the slurry are tested;

step six: after the lower end of the isolation plate is pumped away, taking out the lower layer of slurry, and testing the solid content value and the viscosity of the slurry in the same way;

step seven: and carrying out data processing, analysis and comparison on the solid content values and the slurry viscosities of the upper layer slurry, the middle layer slurry and the lower layer slurry to obtain results.

The standing time in the third step is 24 hours.

Compared with the prior art, the invention has the following advantages:

according to the device for detecting the stability of the slurry, the viscosity can be changed after the slurries with different heights are settled, so that the device can eliminate the influence of the heights of different areas on the characteristics of the slurry;

the working method for detecting the stability of the slurry can judge whether the slurry is settled or not more intuitively and conveniently judge the stability, so that a slurry formula system can be optimized; meanwhile, the sensitivity of the viscosity to the time is weaker than that of the slurry sedimentation to the time, so that the time for evaluating the stability of the slurry can be effectively shortened.

Drawings

Fig. 1 is a schematic overall structure diagram of an apparatus for detecting slurry stability according to the present invention.

FIG. 2 is a schematic front view of a barrel body of the apparatus for detecting slurry stability of the present invention.

FIG. 3 is a schematic top view of a barrel of an apparatus for testing slurry stability according to the present invention.

Fig. 4 is a schematic diagram of a spacer structure of an apparatus for detecting slurry stability according to the present invention.

Wherein: 1. a base; 2. a slurry barrel body; 3. an opening; 4. an isolation trench; 5. a separator plate; 6. a handle; 7. an isolation film; 8. a concave structure.

Detailed Description

The invention is described below with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 4, a device for detecting slurry stability comprises a base 1, wherein a slurry barrel body 2 is arranged on the base 1, and an opening 3 is arranged at the top of the slurry barrel body 2;

at least one isolation groove 4 is formed in the side wall of the slurry barrel body 2, and a concave platform structure 8 is arranged in the slurry barrel body 2 in a matching mode on the same horizontal height of the isolation groove 4;

the concave platform structure 8 is internally provided with a partition plate 5, and the size of the concave platform structure 8 is matched with the size of the partition plate 5.

The division board 5 is an arc flat plate structure, the arc radius of the head part is smaller than that of the tail part, and the tail part is provided with a handle 6.

An isolating membrane 7 is arranged above the opening 3, and is sealed by the isolating membrane 7.

The diameter of the base 1 is larger than that of the slurry barrel body 2.

In this embodiment, the number of the isolation grooves 4 is 2, and the slurry barrel body 2 is divided into three layers.

In this embodiment, the apparatus for detecting slurry stability of the present invention has the following working method:

the method comprises the following steps: adding the newly stirred slurry into the slurry barrel body 2;

step two: the two isolation plates 5 are respectively inserted into the isolation grooves 4 to isolate the whole slurry barrel body 2 into 3 layers, namely an upper layer, a middle layer and a lower layer;

step three: sealing the top opening with an isolating membrane 7, and then standing;

step four: after standing for 24 hours, pouring out the slurry on the upper layer, and testing the solid content and the viscosity of the slurry;

step five: taking out the upper layer of the isolation board, pouring out the middle layer of slurry, and testing the solid content value and the viscosity of the slurry;

step six: finally, taking out the lower layer of the isolation plate, pouring out the lower layer of slurry, and testing the solid content value and the viscosity of the slurry in the same way;

step seven: and carrying out data processing, analysis and comparison on the upper layer slurry, the middle layer slurry and the lower layer slurry to obtain a result.

In this embodiment, in the working method for detecting the stability of the slurry, by comparing the solid content values of the upper layer, the middle layer and the lower layer with the viscosity of the slurry, when the solid content gradually increases and changes obviously, the viscosity also increases, which indicates that the stability of the slurry is poor, parameters such as a formula system or a stirring process need to be further optimized;

when the solid content is basically kept stable and the change is not obvious, the viscosity is relatively stable, which indicates that the slurry has better stability and can solidify related parameters.

The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.