CN214681502U

CN214681502U - Slurry mixing device

Info

Publication number: CN214681502U
Application number: CN202120860510.1U
Authority: CN
Inventors: 李峥; 冯玉川; 王明辉; 李清晖; 何泓材
Original assignee: Yichun Qingtao Energy Technology Co ltd
Current assignee: Yichun Qingtao Energy Technology Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-12
Anticipated expiration: 2031-04-25

Abstract

The utility model relates to a thick liquids mixes technical field, discloses a thick liquids mixing arrangement, including slurrying storage tank and agitating unit, agitating unit includes agitator motor, (mixing) shaft and two kinds at least stirring rakes, and many agitator motor set up in the top of slurrying storage tank, (mixing) shaft is all connected to every agitator motor's output shaft, and the (mixing) shaft stretches into the inside of slurrying storage tank by the outside of slurrying storage tank, and the stirring rake sets up in the slurrying storage tank, and every stirring rake sets up at least two, and every stirring rake links to each other with a (mixing) shaft respectively. At least two stirring paddles are arranged in a pulping storage tank of the slurry mixing device, each stirring paddle is provided with at least two stirring paddles, and each stirring paddle is respectively connected with one stirring shaft so as to mix the slurry through a plurality of stirring paddles of different types, thereby improving the mixing degree of the slurry and reducing the stirring time.

Description

Slurry mixing device

Technical Field

The utility model relates to a thick liquids mix technical field, especially relate to a thick liquids mixing arrangement.

Background

As energy and environmental problems become more serious, people have more and more demands on lithium batteries, and the requirements on lithium batteries are more and more strict, so that the control of the preparation process of the lithium batteries is particularly important in order to obtain high-quality lithium batteries, the preparation process of the lithium batteries comprises the steps of preparing electrode slurry, coating, drying, rolling, cutting, laminating, bagging, injecting, sealing and the like, wherein the slurry preparation is taken as the first step of the whole preparation process, and the quality of the slurry, namely the dispersibility and uniformity of active substances in a solvent directly influence the performance of the batteries.

In the preparation process of the lithium battery slurry, due to the fact that the slurry is high in viscosity, long in time consumption in the pulping process and the phenomenon of uneven material mixing, the performance of a lithium battery assembled subsequently is seriously influenced. Since the battery slurry contains a plurality of substances, the uniformity of the slurry and the dispersibility of the solid particulate matter in the solvent are very important. In the prior art, a single stirring paddle is usually adopted, and the slurry with high viscosity is difficult to be uniformly mixed in a short time. The stirring range of a single stirring paddle is limited, the slurry cannot be integrally mixed in a container, a high-degree disperser or an ultrasonic device is adopted to assist the slurry to be mixed and dispersed in the prior art, the effect is good, the cost is too high, and the method is not suitable for large-scale pulping equipment on a production line.

Therefore, in view of the above circumstances, how to improve the existing electrode paste mixing apparatus to solve the above problems while keeping the cost low is an important technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thick liquids mixing arrangement has solved and has been difficult to misce bene and technical problem with high costs in the current thick liquids mixing arrangement short time.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a thick liquids mixing arrangement, including slurrying storage tank and agitating unit, agitating unit includes:

the stirring motors are arranged at the top of the pulping storage tank;

the output shaft of each stirring motor is connected with one stirring shaft, and the stirring shafts extend into the pulping storage tank from the outside of the pulping storage tank; and

at least two kinds of stirring rake, set up in pulping storage tank, every the stirring rake sets up at least two, every the stirring rake respectively with one the (mixing) shaft links to each other.

This thick liquids mixing arrangement is including slurrying storage tank and agitating unit, agitating unit includes many agitator motors, agitator motor sets up in the top of slurrying storage tank, a (mixing) shaft is all connected to every agitator motor's output shaft, set up two kind at least stirring rakes in the slurrying storage tank, every stirring rake sets up at least two, every stirring rake links to each other with a (mixing) shaft respectively, mix thick liquids with a plurality of stirring rakes through different types, the degree of mixing of thick liquids has been improved, the stirring time has been reduced, and the cost is reduced for setting up high deconcentrator or ultrasonic device.

As a preferred scheme of the slurry mixing device, two stirring paddles are arranged in the pulping storage tank, and each stirring paddle is provided with two stirring paddles.

Two stirring paddles are arranged in the pulping storage tank, and each stirring paddle is provided with two stirring paddles, so that the mixing degree of the pulp is improved, and the over-high cost is avoided.

As a preferable scheme of the above slurry mixing device, one of the two types of stirring paddles is a turbine paddle, and the other of the two types of stirring paddles is a twisted paddle.

Meanwhile, the turbine paddle and the twist paddle are adopted, the turbine paddle is wide in applicable viscosity range, large in shearing force and good in fluid dispersing effect; the twist paddles are suitable for the slurry with larger viscosity, can be used independently when the slurry with lower viscosity or less viscosity is processed, and can also work cooperatively when the slurry with high viscosity or more slurry, and the preparation work of the slurry can be completed in a short time under the synergistic effect of the two stirring paddles.

As a preferable scheme of the slurry mixing device, the two turbine paddles are located in the same plane, the two twist paddles are located in the same plane, and the plane where the two turbine paddles are located and the plane where the two twist paddles are located are perpendicular to each other.

The setting can be comparatively even with the thick liquids mixture in the slurrying storage tank.

As a preferable mode of the slurry mixing device, the two turbine paddles are symmetrically arranged about a plane where the two twist paddles are located, and the two twist paddles are symmetrically arranged about a plane where the two turbine paddles are located.

The mixing uniformity in the pulping storage tank is further improved by the arrangement, and the phenomenon of local uneven mixing is avoided.

As a preferable mode of the slurry mixing device, the heights of the two twist paddles are the same, and the heights of the two turbine paddles are the same.

Above-mentioned setting up makes the more even of thick liquids stirring in the slurrying storage tank, avoids appearing because the stirring rake of the same race leads to the inhomogeneous phenomenon of thick liquids stirring because the height is inconsistent.

As a preferable scheme of the above pulp mixing device, the bottom of the turbine paddle and the middle of the twisted paddle are located at the same height.

The bottom of turbine oar is located same height with the middle part of fried dough twist oar, and the turbine oar mainly used stirs the thick liquids on upper portion in the thick liquids storage tank, and the thick liquids of fried dough twist oar mainly used lower part in the thick liquids storage tank stir, stirs in the time of turbine oar and fried dough twist oar, can be with the more even of the thick liquids stirring in the slurrying storage tank, because of the influence that the too fast a large amount of bubbles of production brought of stirring when having avoided a stirring rake stirring simultaneously.

As a preferable mode of the above slurry mixing device, the turbine blade is a radial turbine blade.

The turbine paddle is a radial-flow turbine paddle and is used in cooperation with an axial-flow twist paddle to enable the slurry to move up and down and around, so that the effect of uniform mixing can be achieved in a short time.

As a preferable mode of the above pulp mixing device, the twist paddle includes:

the main part, the main part with correspond the (mixing) shaft links to each other, the bottom of main part is provided with the cross axle.

The bottom of the main body of the twist oar is provided with the cross axle, can prevent the thick liquids deposit in the bottom of slurrying storage tank, avoids long-pending material and drier in the slurrying storage tank, avoids blockking up the slurrying storage tank.

As a preferable scheme of the slurry mixing device, a feeding hole is formed in the top of the pulping storage tank, and a discharging hole is formed in the bottom of the pulping storage tank.

A feed inlet is formed in the top of the pulping storage tank, and the pulp is input into the pulping storage tank through the feed inlet; the bottom of slurrying storage tank sets up the discharge gate to in the thick liquids after will stirring evenly pass through the discharge gate output, the discharge gate sets up in the bottom of slurrying storage tank, so that the thick liquids rely on the weight output of self, but also can reduce thick liquids residual volume.

The utility model has the advantages that:

the utility model provides a slurry mixing device, this slurry mixing device includes slurrying storage tank and agitating unit, agitating unit includes many agitator motor, agitator motor sets up in the top of slurrying storage tank, a (mixing) shaft of every agitator motor's output shaft all connects, set up two kind at least stirring rakes in the slurrying storage tank, every stirring rake sets up at least two, every stirring rake links to each other with a (mixing) shaft respectively, mix the thick liquids with a plurality of stirring rakes through different types, the degree of mixing of thick liquids has been improved, the stirring time has been reduced, and for setting up high deconcentrator or ultrasonic device the cost is reduced.

Drawings

Fig. 1 is a schematic structural view of a first viewing angle of a slurry mixing apparatus provided by the present invention;

fig. 2 is a schematic structural view of a second viewing angle of the slurry mixing apparatus provided by the present invention;

fig. 3 is a schematic structural diagram of the slurry mixing device showing the arrangement of two types of stirring paddles inside.

In the figure:

1. a pulping storage tank; 11. a feed inlet; 12. a discharge port;

21. a stirring motor; 22. a stirring shaft; 231. a turbine blade; 232. a twist oar; 2321. a main body; 2322. the horizontal axis.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment provides a thick liquids mixing arrangement, is applied to the preparation in-process of lithium battery thick liquids, can be in the short time with thick liquids misce bene. Of course, the slurry mixing device can also be applied to other occasions requiring stirring.

As shown in fig. 1-3, the slurry mixing device comprises a pulping storage tank 1 and a stirring device, the stirring device comprises a stirring motor 21, a stirring shaft 22 and at least two stirring paddles, a plurality of stirring motors 21 are arranged at the top of the pulping storage tank 1, an output shaft of each stirring motor 21 is connected with one stirring shaft 22, the stirring shaft 22 extends into the pulping storage tank 1 from the outside of the pulping storage tank 1, the stirring paddles are arranged in the pulping storage tank 1, each stirring paddle is at least two, each stirring paddle is respectively connected with one stirring shaft 22, so that the slurries are mixed through a plurality of stirring paddles of different types, the mixing degree of the slurries is improved, the stirring time is reduced, and the cost is reduced for arranging a high disperser or an ultrasonic device.

Optionally, the pulping tank 1 has a receiving cavity therein, and the section of the receiving cavity is a circular structure with a uniform inner diameter.

As shown in fig. 1 and fig. 2, a feed inlet 11 is provided at the top of the slurrying storage tank 1, and slurry is fed into the slurrying storage tank 1 through the feed inlet 11, in this embodiment, a plurality of feed inlets 11 may be provided at the top of the slurrying storage tank 1, so that solvent, solid powder (including active material, conductive agent, binder and fast ion conductor) and other materials required for preparing lithium battery slurry are fed into the slurrying storage tank 1 through different feed inlets 11 through the feed inlets 11, thereby increasing the feeding speed and improving the working efficiency.

The number, the position and the size of the feed ports 11 are not particularly limited, and may be set according to actual requirements.

With continued reference to fig. 1 and 2, the bottom of the pulping tank 1 is provided with a discharge port 12 so as to output the uniformly stirred pulp through the discharge port 12, and the discharge port 12 is arranged at the bottom of the pulping tank 1 so as to output the pulp by its own weight and reduce the residual amount of the pulp. Preferably, the discharge port 12 is provided at a central position of the pulping tank 1 to facilitate the output of the pulp.

Optionally, set up two kinds of stirring rakes in pulping storage tank 1, every kind of stirring rake all sets up two, has improved the degree of mixing of thick liquids, avoids the cost too high moreover.

In order to facilitate the maintenance and replacement of the stirring paddle, the stirring paddle is detachably connected with the stirring shaft 22, so that the stirring paddle is convenient to maintain and replace when damaged. The detachable connection between the stirring paddle and the stirring shaft 22 is not limited in detail, and may be formed by snap-fit connection, plug-in connection, or connection piece connection.

In this embodiment, one of the two types of paddles is a turbine paddle 231, the other of the two types of paddles is a twist paddle 232, the turbine paddle 231 is provided in two, and the twist paddle 232 is also provided in two. The turbine paddle 231 and the twist paddle 232 are adopted in the pulping storage tank 1 at the same time, the turbine paddle 231 is wide in applicable viscosity range, large in shearing force and good in fluid dispersing effect; the twist paddles 232 are suitable for the slurry with high viscosity, can be used independently when the slurry with low viscosity or less viscosity is processed, and can also work cooperatively when the slurry with high viscosity or more viscosity is processed, and the preparation work of the slurry can be completed in a short time due to the synergistic effect of the two stirring paddles.

It should be noted that the pulping tank 1 is not limited to the combination of the turbine blade 231 and the twist blade 232, and may be configured by another type of paddle in addition to the combination of the turbine blade 231 and the twist blade 232.

Further, two turbine paddles 231 are located the coplanar, two fried dough twist paddles 232 are located the coplanar, and the plane that two turbine paddles 231 are located and two fried dough twist paddles 232 are located plane mutually perpendicular, and the setting can be with the thick liquids in the slurrying storage tank comparatively even that mixes.

Further, as shown in fig. 3, the two turbine paddles 231 are symmetrically disposed about a plane in which the two twist paddles 232 are disposed, and the two twist paddles 232 are symmetrically disposed about a plane in which the two turbine paddles 231 are disposed. The mixing uniformity in the pulping storage tank 1 is further improved by the arrangement, and the phenomenon of local uneven mixing is avoided.

Optionally, as shown in fig. 1 and fig. 2, the two twist paddles 232 have the same height, and the two turbine paddles 231 have the same height, so that the slurry in the pulping tank 1 is stirred more uniformly, and the phenomenon that the slurry is stirred non-uniformly due to the different heights of the same type of paddles is avoided.

In this embodiment, the bottom of turbine oar 231 and the middle part of fried dough twist oar 232 are located same height, and turbine oar 231 mainly used stirs the thick liquids of upper portion in the thick liquids storage tank, and fried dough twist oar 232 mainly used stirs the thick liquids of the lower part in the thick liquids storage tank, and stirring in the time of turbine oar 231 and fried dough twist oar 232 can be with the more even of the thick liquids stirring in pulping storage tank 1, because of the influence that a large amount of bubbles brought is produced at the excessive speed in the stirring of a stirring rake simultaneously when having avoided the stirring.

Preferably, the turbine paddle 231 is a radial turbine paddle, and is used in cooperation with the axial twist paddle 232 to move the slurry up and down and around, so that the uniform mixing effect can be achieved in a short time.

As shown in fig. 1 and 2, the twist propeller 232 includes a main body 2321, the main body 2321 is detachably connected to the corresponding stirring shaft 22, and a horizontal shaft 2322 is disposed at the bottom of the main body 2321, so that the slurry can be prevented from being deposited at the bottom of the pulping tank 1, the accumulation and the dry materials in the pulping tank 1 can be avoided, and the pulping tank 1 can be prevented from being blocked.

This thick liquids mixing apparatus mixes thick liquids through a plurality of stirring rakes of different kinds, has improved the degree of mixing of thick liquids, has shortened thick liquids mixing time for the dispersion of thick liquids is more even, and the performance is more excellent.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A pulp mixing device comprising a pulping tank (1) and a stirring device, characterized in that the stirring device comprises:

the stirring motors (21) are arranged at the top of the pulping storage tank (1);

the output shaft of each stirring motor (21) is connected with one stirring shaft (22), and the stirring shafts (22) extend into the pulping storage tank (1) from the outside of the pulping storage tank (1); and

the stirring device comprises at least two stirring paddles, wherein the stirring paddles are arranged in the pulping storage tank (1), each stirring paddle is provided with at least two stirring paddles, and each stirring paddle is respectively connected with one stirring shaft (22).

2. The pulp mixing arrangement according to claim 1, characterized in that two types of paddles, two for each type of paddles, are arranged in the pulping tank (1).

3. The slurry mixing device according to claim 2, wherein one of said paddles is a turbine paddle (231) and the other of said paddles is a twist paddle (232).

4. A pulp mixing device according to claim 3, wherein said two turbine paddles (231) are located in the same plane, said two twist paddles (232) are located in the same plane, and the plane of said two turbine paddles (231) is perpendicular to the plane of said two twist paddles (232).

5. The pulp mixing device according to claim 4, wherein two of said turbine paddles (231) are symmetrically arranged with respect to a plane in which two of said twist paddles (232) are located, and two of said twist paddles (232) are symmetrically arranged with respect to a plane in which two of said turbine paddles (231) are located.

6. The slurry mixing device according to any one of claims 3-5, wherein the heights of the two twist paddles (232) are identical and the heights of the two turbine paddles (231) are identical.

7. The slurry mixing device according to claim 6, wherein the bottom of the turbine paddle (231) is at the same height as the middle of the twist paddle (232).

8. The slurry mixing device according to any of the claims 3-5, wherein the turbine paddle (231) is a radial flow turbine paddle.

9. The slurry mixing device according to any one of claims 3-5, wherein the twist paddle (232) comprises:

the main body (2321), the main body (2321) with correspond (mixing) shaft (22) link to each other, the bottom of main body (2321) is provided with horizontal axle (2322).

10. The pulp mixing arrangement according to any of the claims 1-5, characterized in that the top of the pulp tank (1) is provided with a feed inlet (11) and the bottom of the pulp tank (1) is provided with a discharge outlet (12).