CN107505164B

CN107505164B - Slurry sampler

Info

Publication number: CN107505164B
Application number: CN201710712990.5A
Authority: CN
Inventors: 席凯凯; 罗传军; 李莉; 仲启方; 牛猛卫; 赵永锋; 许飞; 李云峰
Original assignee: Multi Fluorine New Energy Technology Co ltd
Current assignee: Multi Fluorine New Energy Technology Co ltd
Priority date: 2017-08-18
Filing date: 2017-08-18
Publication date: 2020-04-10
Anticipated expiration: 2037-08-18
Also published as: CN107505164A

Abstract

The invention relates to a slurry sampler, which aims to solve the problem that single and single-point material taking cannot represent integrity or multiple non-simultaneous material taking causes slurry flowing to influence slurry uniformity measurement in the prior art. The slurry sampler comprises a sampling rod, at least two sampling containers are connected to the sampling rod, and sampling ports for taking slurry are arranged on the sampling containers. This thick liquids sampler has realized once can getting the thick liquids of many places in the feed cylinder through set up two at least sample containers on the thief rod, is favorable to the measurement of thick liquids homogeneity.

Description

Slurry sampler

Technical Field

The invention relates to a slurry sampler.

Background

The lithium ion battery has high energy density, wide temperature working range and excellent cycle performance, is widely applied to portable computers, cameras, video cameras, electric tools and hybrid electric vehicles, and is applied to artificial satellites, aerospace and energy storage to solve the problems of energy loss, environmental pollution and the like at present.

One of the most important steps in the manufacturing process of the lithium electronic battery is slurry mixing, wherein the slurry comprises a solvent (deionized water and N-methyl pyrrolidone), an active material (a positive active material is lithium iron phosphate, lithium cobaltate, lithium manganate and the like, and a negative active material is graphite, a silicon-based material and the like), a conductive agent, a binder and the like. Whether the configured slurry is uniform or not has important influence on the consistency of electrochemical properties such as internal resistance, capacity and the like of the battery, so that the uniformity of taking the slurry in the charging barrel is very important. When the material barrel is taken in the prior art, the material barrel is sampled once through a container, integrity cannot be represented, and if the material barrel is taken for many times, the slurry in the material barrel flows every time, so that the measurement of the uniformity of the slurry is influenced.

Disclosure of Invention

The invention aims to provide a slurry sampler, which aims to solve the problem that single and single-point material taking cannot represent integrity or multiple non-simultaneous material taking causes slurry flow to influence slurry uniformity measurement in the prior art.

In order to achieve the above purpose, the first technical solution of the slurry sampler of the present invention is: the utility model provides a thick liquids sampler, includes the thief rod, be connected with two at least sample containers on the thief rod, be equipped with the sample connection that is used for getting thick liquids on the sample container. This sampler has realized once can getting the thick liquids of many places in the feed cylinder through set up two at least sample containers on the thief rod, is favorable to the measurement of thick liquids homogeneity.

The second technical scheme of the slurry sampler of the invention is as follows: on the basis of the first technical scheme of the slurry sampler, the sampling container is a sampling ball. The sampling device is spherical, so that the sample can conveniently enter the sampling device.

The third technical scheme of the slurry sampler of the invention is as follows: in a first aspect of the slurry sampler of the present invention, the at least two sampling ports are arranged axially along the sampling rod. The slurry at the left and right parts in the charging barrel can be obtained, and the uniformity of measurement is ensured.

The fourth technical scheme of the slurry sampler of the invention is as follows: in a first aspect of the slurry sampler according to the present invention, the at least two sampling ports are arranged radially along the sampling rod. The slurry at the upper part and the lower part in the charging barrel can be obtained, and the uniformity of measurement is ensured.

The fifth technical scheme of the slurry sampler comprises the following steps: in any of the first to fourth aspects of the slurry sampler of the present invention, at least one of the sampling vessels has a volume smaller than the volume of the sampling vessel. The phenomenon that the slurry has particle agglomeration and is uniformly dispersed during sampling is avoided, and the uniformity measurement is influenced.

The sixth technical scheme of the slurry sampler of the invention is as follows: on the basis of any one of the first technical scheme to the fourth technical scheme of the slurry sampler, the sampling port is provided with a built-in valve for controlling slurry to flow in and out, the sampling rod is provided with a switch for controlling the built-in valve, and the switch controls the built-in valve to be opened through a switch wire. The built-in valve is arranged on the sampling ball, so that the slurry can be sampled conveniently, and the built-in valve switch is connected to the upper end of the sampling rod through the switch wire so as to control the built-in valve conveniently.

The seventh technical scheme of the slurry sampler of the invention is as follows: on the basis of the sixth technical scheme of the slurry sampler, an interlayer is arranged on the wall of the sampling container, and the switch wire is arranged in the interlayer. The interlayer facilitates protection of the switch wire.

The eighth technical scheme of the slurry sampler of the invention is as follows: on the basis of the seventh technical scheme of the slurry sampler, the switch wire is a conductive wire. The control of the built-in valve is convenient.

The ninth technical scheme of the slurry sampler of the invention is as follows: in any of the first to fourth aspects of the slurry sampler of the present invention, the sampling container is detachably connected to the sampling rod. The sampling container after sampling is convenient to weigh.

The tenth technical scheme of the slurry sampler of the invention is as follows: on the basis of the ninth technical scheme of the slurry sampler, the sampling ball is connected with the sampling rod in a threaded mode. Threaded connection is convenient for dismantle from the thief rod when the sample ball is weighed.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of a slurry sampler of the present invention;

FIG. 2 is a schematic structural diagram of the sampling ball of FIG. 1;

FIG. 3 is a schematic diagram of a second embodiment of a slurry sampler of the present invention;

FIG. 4 is a schematic view of a third embodiment of a slurry sampler of the present invention;

fig. 5 is a schematic diagram of a fourth embodiment of a slurry sampler of the present invention.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

The first concrete embodiment of the slurry sampler of the invention, as shown in fig. 1 and fig. 2, firstly, the sampler 1 is used for sampling, the sampler 1 comprises a sampling rod 2 and a sampling ball 3 connected with the sampling rod 2, the sampling ball 3 forms a sampling container, the sampling rod 2 is a straight rod with a certain length, the sampling rod 2 is respectively distributed with a plurality of sampling balls 3 in the axial direction and the radial direction, the sampling balls 3 are provided with sampling ports, the sampling balls 3 distributed in multiple points ensure the uniformity of sampling, and all points in the charging barrel can be obtained; the sampling balls 3 are different in size, and the purpose of the arrangement is to avoid the phenomenon that particles in slurry are agglomerated but dispersed uniformly during sampling, so that the condition that the uniformity is inaccurate due to the fact that all the particles are agglomerated inside the small balls or all the solvent is used inside the small balls is avoided.

In the above, the upper end of the sampling ball 3 is provided with the connector 6, the connector 6 is tapped with threads, the sampling ball 3 is connected with the sampling rod 2 in a threaded manner, and the sampling ball is convenient to detach from the sampling rod during weighing by adopting the connection mode; the utility model discloses a sampling ball 3, including sampling ball 3, the internal valve 4 that is used for controlling thick liquids business turn over is located to sample department, is equipped with intermediate layer 7 on sampling ball 3's the ball wall, be equipped with switch wire 5 in the intermediate layer 7, the one end of switch wire links to each other with internal valve 4, and the other end is connected to on the thief rod and through the switching of the switch control internal valve 4 of thief rod upper end, sets up internal valve 4 bottom the sampling ball, is convenient for sample the thick liquids, and is connected to the switch of internal valve 4 through switch wire 5 and also is convenient for the control to internal valve 4 on the thief rod.

In specific implementation, 2 samples in putting into the feed cylinder perpendicularly to the thief rod that is connected with sampling ball 3, during the sample, wait that sampler 1 fully immerses the feed cylinder after, open the switch of built-in valve 4 of every sampling ball 3, built-in valve 4 is inwards opened, thick liquids get into sampling ball 3 from the sample connection, after every sampling ball 3 such as a period of time has all been filled, close built-in valve 4, then pull out thief rod 2, lift every sampling ball 3 again and measure the homogeneity, the thick liquids that many times of samplings have been avoided to this kind of method flow, the thick liquids measuring accuracy has been guaranteed.

A second embodiment of a slurry sampler according to the present invention, as shown in fig. 3, differs from the first embodiment in that the sampling bulb may be replaced by an oval sampling vessel.

Third embodiment of the slurry sampler of the present invention, as shown in fig. 4, is different from the first embodiment in that the sampling balls 3 have the same volume size.

A fourth embodiment of a slurry sampler according to the present invention, as shown in fig. 5, differs from the first embodiment in that the sampling port of the sampling ball is located at the uppermost end of the sampling ball after connection.

A fifth embodiment of a slurry sampler of the present invention differs from the first embodiment in that the sampling sphere is rectangular.

The sixth embodiment of the slurry sampler of the present invention is different from the first embodiment in that the switch wire is a mechanical wire, and the built-in valve is opened by pulling the switch wire through a switch on the sampling rod.

A seventh embodiment of a slurry sampler according to the invention differs from the first embodiment in that the sampling vessel is welded to the sampling rod.

According to the invention, the sampling balls with different sizes are distributed in multiple points, so that the uniformity of sampling is ensured, the phenomenon that slurry is agglomerated but uniformly dispersed in the slurry possibly existing in the sampling process is avoided, the automatic control of the entry of the sample is realized through the built-in valve at the bottom of the sampler, the uniformity of the slurry can be effectively measured, and the working efficiency is improved.

Claims

1. A slurry sampler, characterized by: including the thief rod, be connected with two at least sample containers on the thief rod, be equipped with the sample connection that is used for getting thick liquids on the sample container, two at least sample connections are arranged along the thief rod radial, the volume of at least one is less than all the other volume of each sample container among the sample container.

2. A slurry sampler according to claim 1, wherein: the sampling container is a sampling ball.

3. A slurry sampler according to claim 1, wherein: the at least two thief ports are arranged axially along the thief rod.

4. A slurry sampler according to any one of claims 1 to 3, wherein: the sampling device is characterized in that a built-in valve used for controlling slurry to enter and exit is arranged at the sampling port, a switch used for controlling the built-in valve is arranged on the sampling rod, and the switch controls the built-in valve to be opened through a switch wire.

5. A slurry sampler according to claim 4, wherein: an interlayer is arranged on the wall of the container of the sampling container, and the switch wire is arranged in the interlayer.

6. A slurry sampler according to claim 5, wherein: the switch line is a conductive line.

7. A slurry sampler according to any one of claims 1 to 3, wherein: the sampling container and the sampling rod are detachably connected.

8. A slurry sampler according to claim 7, wherein: the sampling container is in threaded connection with the sampling rod.