CN211070055U - Large-volume ternary anode material precursor reaction kettle with high stirring shearing force - Google Patents
Large-volume ternary anode material precursor reaction kettle with high stirring shearing force Download PDFInfo
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- CN211070055U CN211070055U CN201920921748.3U CN201920921748U CN211070055U CN 211070055 U CN211070055 U CN 211070055U CN 201920921748 U CN201920921748 U CN 201920921748U CN 211070055 U CN211070055 U CN 211070055U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
A large-volume ternary anode material precursor reaction kettle with high stirring shearing force; comprises a closed kettle body, wherein a reaction chamber is arranged in the kettle body; a feed inlet and a discharge outlet are formed in the kettle body and are communicated with the reaction chamber; the device also comprises a main stirring device and an auxiliary stirring device; the main stirring device comprises a first rotating shaft, and a plurality of groups of first stirring blades are arranged at intervals from top to bottom; the auxiliary main stirring device comprises a second rotating shaft, is parallel to the first rotating shaft and is provided with a plurality of groups of second stirring blades at intervals from top to bottom; a guide shell is arranged in the reaction chamber, a first rotating shaft is arranged in the guide shell, a descending mixed liquid channel is formed by rotation, and an ascending mixed liquid channel is formed outside the guide shell. The utility model provides a reation kettle enlarge the back shearing force and weaken and lead to precursor granule easily to reunite etc. not enough. Has the advantages of ingenious structural design, strong stirring shearing force and the like.
Description
Technical Field
The utility model relates to a preparation equipment of lithium cell ternary cathode material precursor, concretely relates to big volume ternary cathode material precursor reation kettle with high stirring shearing force.
Background
The production process of the ternary precursor is accompanied by physical and chemical reactions, phase change processes and energy conversion, and a plurality of factors influencing the reactions comprise: raw material flow, pH value, complexing agent concentration, reaction temperature, reaction atmosphere, stirring power, slurry density and the like, so that the method is a very complicated industrial production process.
For example, if the volume of an externally heated sleeve-type reaction kettle used in industrial production is enlarged to increase the yield, the critical value of the highest stirring speed is also reduced, and a certain mixing effect can be achieved, but abnormal agglomeration of precursor particles can occur due to the reduction of the shearing force.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The utility model aims at providing a big volume ternary cathode material precursor reation kettle with high stirring shearing force.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a large-volume ternary anode material precursor reaction kettle with high stirring shearing force; comprises a closed kettle body, wherein the closed kettle body is provided with a reaction chamber;
the closed kettle body is provided with at least two feed inlets and a discharge outlet; each feed inlet and each discharge outlet are communicated with the reaction chamber;
wherein, also include a main mixing plant and at least one pair of mixing plants;
the main stirring device comprises a vertical first rotating shaft, the first rotating shaft is positioned at the geometric center of the cross section of the reaction chamber and is driven to rotate by a first driving device; a plurality of groups of first stirring blades are arranged on the first rotating shaft at intervals from top to bottom;
the auxiliary main stirring device is positioned at the side part of the main stirring device, comprises a vertical second rotating shaft, is arranged in parallel with the first rotating shaft of the main stirring device, and is driven to rotate by a second driving device; a plurality of groups of second stirring blades are arranged on the second rotating shaft at intervals from top to bottom;
a guide cylinder is coaxially positioned in the reaction chamber, is of a cylindrical structure and is open at the upper part and the lower part; the first rotating shaft of the main stirring device is arranged in the guide shell, a descending mixed liquid channel is formed in the guide shell through rotation, the descending mixed liquid flows out to the side part through an opening at the lower part, an ascending mixed liquid channel is formed at the outer side of the guide shell, and the ascending mixed liquid flows back to the guide shell through an opening at the upper part, so that a circulating channel of the mixed liquid is formed.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, the first stirring paddle comprises an upper paddle, a middle paddle and a lower paddle which are arranged in parallel in the vertical direction at intervals;
each second stirring paddle is positioned between the middle layer paddle and the lower layer paddle of the first stirring paddle.
2. In the above scheme, the first feed inlet extends into the upper part of the second stirring paddle of the auxiliary stirring device through a feed pipeline.
3. In the above scheme, the auxiliary stirring devices are provided with a plurality of groups, and the second rotating shafts of the auxiliary stirring devices are uniformly distributed in the circumferential direction of the first rotating shaft of the main stirring device.
4. In the above scheme, the second rotating shaft of the auxiliary stirring device is located in the guide shell.
The utility model discloses a theory of operation and advantage as follows:
the utility model relates to a large-volume ternary anode material precursor reaction kettle with high stirring shearing force; comprises a closed kettle body, wherein a reaction chamber is arranged in the kettle body; a feed inlet and a discharge outlet are formed in the kettle body and are communicated with the reaction chamber; the device also comprises a main stirring device and an auxiliary stirring device; the main stirring device comprises a first rotating shaft, and a plurality of groups of first stirring blades are arranged at intervals from top to bottom; the auxiliary main stirring device comprises a second rotating shaft, is parallel to the first rotating shaft and is provided with a plurality of groups of second stirring blades at intervals from top to bottom; a guide shell is arranged in the reaction chamber, a first rotating shaft is arranged in the guide shell, a descending mixed liquid channel is formed by rotation, and an ascending mixed liquid channel is formed outside the guide shell.
Compared with the prior art, the utility model provides a reation kettle enlarge the back shearing force and weaken and lead to precursor granule easily to reunite etc. not enough. Has the advantages of ingenious structural design, strong stirring shearing force and the like.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the above drawings: 1. sealing the kettle body; 2. a reaction chamber; 3. a feed inlet; 3a, a first feed inlet; 3b, a second feed inlet; 4. a discharge port; 5. a first rotating shaft; 6. a first stirring blade; 7. a second rotating shaft; 8. a second stirring blade; 9. a feed line; 10. a guide shell.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.
The terms "first," "second," and the like, as used herein, do not denote any order or importance, nor do they denote any order or importance, but rather are used to distinguish one element from another element or operation described in such technical terms.
As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.
As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.
As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.
Referring to the attached figure 1, a large-volume ternary cathode material precursor reaction kettle with high stirring and shearing force; comprises a closed kettle body 1, wherein the closed kettle body 1 is provided with a reaction chamber 2.
A plurality of feed inlets 3 and a discharge outlet 4 are arranged on the closed kettle body 1; each feed inlet 3 and discharge gate 4 all communicate reaction chamber 2. Preferably, the first feed inlet 3a is arranged above the closed kettle body 1 and used for feeding a nickel-cobalt-manganese mixed salt solution; the second feed inlet 3b is arranged above the kettle body 1 and used for feeding alkali liquor; a third inlet (not shown) is also included for the introduction of the complexing agent.
The nickel-cobalt-manganese mixed salt solution, the alkali liquor and the complexing agent are mixed in the reaction chamber 2 to form a mixed solution, and the mixed solution becomes precursor slurry of the ternary cathode material after chemical reaction. Wherein, besides the nickel-cobalt-manganese mixed salt solution, the nickel-cobalt-aluminum mixed salt solution or the salt solution doped with other metal components on the basis of the above salt solution can be selected.
The discharge port 4 is arranged below the closed kettle body 1 and used for discharging the prepared ternary anode material precursor slurry, and the slurry contains a large amount of particles of the ternary anode material precursor.
Wherein, the stirring device also comprises a main stirring device and at least one auxiliary stirring device.
The main stirring device comprises a vertical first rotating shaft 5, the first rotating shaft 5 is positioned at the geometric center of the cross section of the reaction chamber 2 and is driven to rotate by a first driving device (not shown in the figure) arranged outside the closed kettle body 1, and the first driving device can comprise a motor and a speed reducer, which is the prior art; and a plurality of groups of first stirring blades 6 are arranged on the first rotating shaft 5 at intervals from top to bottom.
The auxiliary main stirring device is positioned at the side part of the main stirring device, and comprises a vertical second rotating shaft 7, the second rotating shaft 7 is arranged in parallel with the first rotating shaft 5 of the main stirring device and is driven to rotate by a second driving device (not shown in the figure) arranged outside the closed kettle body 1, and the second driving device comprises a motor and a speed reducer, and belongs to the prior art; and a plurality of groups of second stirring blades 8 are arranged on the second rotating shaft 7 at intervals from top to bottom.
Preferably, the first stirring paddle 6 comprises an upper paddle, a middle paddle and a lower paddle which are arranged in parallel in the vertical direction at intervals; each of the second stirring blades 8 is located between the middle blade and the lower blade of the first stirring blade 6. By means of the design, the dispersing effect of the precursor particles is further improved, and the second stirring paddle 8 can be of a turbine type, a paddle type or the like.
Preferably, the first feeding hole 3a extends into the upper part of the second stirring blade 8 of the auxiliary stirring device through a feeding pipeline 9. The mixed salt solution is directly fed above the second stirring blade 8, which contributes to improving the dispersibility of the precursor particles.
Preferably, the auxiliary stirring devices are provided with a plurality of groups, and the second rotating shafts 7 of the auxiliary stirring devices are uniformly distributed in the circumferential direction of the first rotating shaft 5 of the main stirring device. Therefore, the mixing effect of the mixed liquid is improved, the chemical reaction is promoted, the dispersibility of the precursor particles is improved, and abnormal agglomeration is avoided.
A guide shell 10 is coaxially positioned in the reaction chamber 2, the guide shell 10 is of a cylindrical structure, and the upper part and the lower part of the guide shell are open; the first rotating shaft 5 of the main stirring device and the second rotating shaft 7 of the auxiliary stirring device are both arranged in the guide cylinder 10, a descending mixed liquid flow channel is formed in the guide cylinder 10 through rotation, the descending mixed liquid flows out to the side part through an opening at the lower part, an ascending mixed liquid flow channel is formed outside the guide cylinder 10, and the ascending mixed liquid flows back to the guide cylinder 10 through an opening at the upper part, so that a circulation flow channel of the mixed liquid is formed.
Through the cooperation design of draft tube 10 and main, vice agitating unit, can bring following effect: firstly, the stirring degree of the mixed liquid is improved, and the direct mechanical shearing action of the stirring device on the mixed liquid is enhanced; secondly, a circulation path of the mixed liquid is limited, and a fully circulating flow pattern is established, so that all materials in the reaction chamber 2 can pass through a strong mixing area in the guide shell 10; and thirdly, the speed and the direction of the backflow of the mixed liquid in the reaction kettle are effectively controlled, and a specific flow pattern is obtained.
In conclusion, the design is beneficial to fully mixing the nickel-cobalt-manganese mixed salt solution, the alkali liquor and the complexing agent, so that the precursor forming effect is better, and meanwhile, the good dispersibility of the precursor particles can be ensured.
In this embodiment, the volume of the reaction chamber 2 is 30-60 cubic meters, and the reaction chamber is a large-volume reaction kettle.
Compared with the prior art, the utility model provides a reation kettle enlarge the back shearing force and weaken and lead to precursor granule easily to reunite etc. not enough. Has the advantages of ingenious structural design, strong stirring shearing force and the like.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. A big volume ternary cathode material precursor reation kettle with high stirring shear force which characterized in that:
comprises a closed kettle body, wherein the closed kettle body is provided with a reaction chamber;
the closed kettle body is provided with at least two feed inlets and a discharge outlet; each feed inlet and each discharge outlet are communicated with the reaction chamber;
wherein, also include a main mixing plant and at least one pair of mixing plants;
the main stirring device comprises a vertical first rotating shaft, the first rotating shaft is positioned at the geometric center of the cross section of the reaction chamber and is driven to rotate by a first driving device; a plurality of groups of first stirring blades are arranged on the first rotating shaft at intervals from top to bottom;
the auxiliary stirring device is positioned at the side part of the main stirring device, comprises a vertical second rotating shaft, is arranged in parallel with the first rotating shaft of the main stirring device, and is driven to rotate by a second driving device; a plurality of groups of second stirring blades are arranged on the second rotating shaft at intervals from top to bottom;
a guide cylinder is coaxially positioned in the reaction chamber, is of a cylindrical structure and is open at the upper part and the lower part; the first rotating shaft of the main stirring device is arranged in the guide shell, a descending mixed liquid channel is formed in the guide shell through rotation, the descending mixed liquid flows out to the side part through an opening at the lower part, an ascending mixed liquid channel is formed at the outer side of the guide shell, and the ascending mixed liquid flows back to the guide shell through an opening at the upper part, so that a circulating channel of the mixed liquid is formed.
2. The large-volume ternary cathode material precursor reaction kettle with high stirring shear force according to claim 1, is characterized in that: the first stirring paddle comprises an upper paddle, a middle paddle and a lower paddle which are parallel to each other in the vertical direction and are arranged at intervals;
each second stirring paddle is positioned between the middle layer paddle and the lower layer paddle of the first stirring paddle.
3. The large-volume ternary cathode material precursor reaction kettle with high stirring shear force according to claim 1, is characterized in that: the first feeding hole extends into the upper part of the second stirring paddle of the auxiliary stirring device through a feeding pipeline.
4. The large-volume ternary cathode material precursor reaction kettle with high stirring shear force according to claim 1, is characterized in that: the auxiliary stirring devices are provided with a plurality of groups, and second rotating shafts of the auxiliary stirring devices are uniformly distributed in the circumferential direction of the first rotating shaft of the main stirring device.
5. The large-volume ternary cathode material precursor reaction kettle with high stirring shear force according to claim 1, is characterized in that: and a second rotating shaft of the auxiliary stirring device is positioned in the guide cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920921748.3U CN211070055U (en) | 2019-06-18 | 2019-06-18 | Large-volume ternary anode material precursor reaction kettle with high stirring shearing force |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920921748.3U CN211070055U (en) | 2019-06-18 | 2019-06-18 | Large-volume ternary anode material precursor reaction kettle with high stirring shearing force |
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| CN211070055U true CN211070055U (en) | 2020-07-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516921A (en) * | 2020-12-16 | 2021-03-19 | 江苏长青农化股份有限公司 | Synthesis process of thiamethoxam technical |
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- 2019-06-18 CN CN201920921748.3U patent/CN211070055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516921A (en) * | 2020-12-16 | 2021-03-19 | 江苏长青农化股份有限公司 | Synthesis process of thiamethoxam technical |
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