CN211885690U

CN211885690U - Material processing device

Info

Publication number: CN211885690U
Application number: CN202020465862.2U
Authority: CN
Inventors: 苏帅; 孟立君; 刘庭杰; 胡志兵; 张娉婷; 何绪锋; 曾永详; 朱璟; 黎力; 吴泽盈; 熊意球; 胡海诗; 李玉云; 刘玮; 周春仙; 张海艳
Original assignee: Hunan Changyuan Lico Co Ltd; Jinchi Energy Materials Co Ltd
Current assignee: Hunan Changyuan Lico Co Ltd; Jinchi Energy Materials Co Ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-11-10
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses a material processing device, include: the device comprises a centrifugal machine, a storage tank, an air blowing pipe, a first pump, a second pump, a third pump, a first pipeline, a second pipeline and a pure water supply pipeline; the outlet of the storage tank is connected with the inlet of the centrifuge through a first pipeline, the outlet of the centrifuge is connected with the inlet of the storage tank through a second pipeline, the first pump is arranged on the first pipeline, the second pump is arranged on the second pipeline, and the gas blow pipe extends into the centrifuge; one end of the pure water supply pipeline is connected with the inlet of the storage tank, and the third pump is arranged on the pure water supply pipeline. The material treatment device has the advantages of high material recovery rate and short dehydration time.

Description

Material processing device

Technical Field

The utility model relates to a material manufacturing field particularly, relates to a material processing apparatus.

Background

The electrochemical performance of the positive electrode material of the lithium battery is influenced by the components, the tap, the average particle size, the sphericity and the like of the precursor material. The lithium battery ternary cathode material precursor is prepared by a wet method, the high-nickel cathode material needs to be dehydrated after being pre-fired and washed, however, the water content of filtrate is high, the conventional dehydration equipment has long dehydration time and small particle size, the material loss is large in the dehydration process, and the cost and the benefit cannot be further reduced.

When the existing method is used for centrifugal dehydration and recovery, part of materials are directly discharged along with waste water due to small size of secondary particles, the recovery rate is low, and in addition, the centrifugal dehydration time is long, so that the use efficiency of a centrifugal machine is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a material processing device, this material processing device's material rate of recovery is higher, and the dehydration time is shorter.

The utility model discloses a material processing device, include: the device comprises a centrifugal machine, a storage tank, an air blowing pipe, a first pump, a second pump, a third pump, a first pipeline, a second pipeline and a pure water supply pipeline; the outlet of the storage tank is connected with the inlet of the centrifuge through a first pipeline, the outlet of the centrifuge is connected with the inlet of the storage tank through a second pipeline, the first pump is arranged on the first pipeline, the second pump is arranged on the second pipeline, and the gas blow pipe extends into the centrifuge; one end of the pure water supply pipeline is connected with the inlet of the storage tank, and the third pump is arranged on the pure water supply pipeline.

Further, a return valve is included, the return valve being disposed on the second conduit upstream of the second pump.

Further, still include waste pipe and waste valve, waste pipe's one end links to each other with centrifuge's export, waste valve sets up on waste pipe.

Furthermore, one end of the second pipeline is obliquely connected with the waste discharge pipeline, the joint of the waste discharge pipeline and the second pipeline is positioned at the upstream of the waste discharge valve, and the included angle between the waste discharge pipeline and the second pipeline ranges from 0 degree to 90 degrees.

Further, still include sample pipeline and sample valve, the one end and the waste discharge pipeline slope of sample pipeline are connected, waste discharge pipeline and sample pipeline's junction is located the upper reaches of waste discharge valve, the contained angle scope between waste discharge pipeline and the sample pipeline is 0-90 degrees, the sample valve sets up on sample pipeline.

Further, a stirrer is arranged in the storage tank.

Furthermore, a circular filter screen is arranged in the centrifugal machine, the first pipeline extends into the centrifugal machine, one end of the first pipeline is opposite to the side wall of the circular filter screen, and one end of the air blowing pipe is opposite to the side wall of the circular filter screen.

Furthermore, the gas blown out from the gas blowing pipe is nitrogen, the opening degree of the pipe orifice of the gas blowing pipe is 1-100% of the whole opening degree, and the included angle between the gas blowing pipe and the side wall of the circular filter screen is 90 degrees.

Furthermore, the air blown out from the air blowing pipe is air, the opening degree of the pipe orifice of the air blowing pipe is 1-100% of the whole opening degree, and the included angle between the air blowing pipe and the side wall of the circular filter screen is 15 degrees.

The utility model discloses following beneficial effect has:

the utility model discloses a material processing apparatus, in the working process, the filtrating (being the mixture of material and water) pump in with the holding vessel of first pump is sent the centrifuge, carries out centrifugal filtration in the centrifuge, and the filtrating after the filtration flows from centrifuge's export, then is sent the holding vessel by the second pump in, is sent the centrifuge by first pump again. So the circulation is reciprocal, through many times filtering, accumulational material is more and more in the centrifuge, through the increase of material thickness, changes the filtration permeability, realizes that more materials pile up, and then improves the material rate of recovery. And (4) circularly filtering until filtrate is clear, enabling a third pump to work, adding pure water into the storage tank, and cleaning materials in the centrifuge. And after the cleaning is finished, stopping circulating filtration and cleaning, and blowing gas into the centrifuge through a gas blowing pipe for dehydrating the materials. And after the dehydration is finished, the whole process is finished, and the material treatment is finished. Because the air blowing pipe is adopted for dehydration, the dehydration time is greatly shortened, and the dehydration efficiency is improved.

In addition, in the utility model, the switch of the second channel can be controlled by arranging the reflux valve; by arranging the sampling pipeline and the sampling valve, the clarity degree of the filtrate can be conveniently observed; through setting up waste pipe and waste valve, can thoroughly discharge the filtrating in the centrifuge.

Drawings

FIG. 1 is a schematic view of a material handling apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the embodiment of the present invention in which the opening degree of the blowing pipe is 100% and 20% of the total opening degree;

fig. 3 is a schematic diagram of the arrangement of the reflux valve, the sampling valve and the waste valve in the embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the structure or unit referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, the terms "mounted," "disposed," "connected," and the like are to be understood in a broad sense, and may be either direct or indirect.

A material processing apparatus according to an embodiment of the present invention is described below with reference to fig. 1 to 3. The material processing device comprises: a centrifuge 10, a storage tank 11, an air blowing pipe 16, a first pump 14, a second pump 15, a third pump 17, a first pipeline 21, a second pipeline 22 and a pure water supply pipeline 23; the outlet of the storage tank 11 is connected with the inlet of the centrifuge 10 through a first pipeline 21, that is, both ends of the first pipeline 21 are respectively connected with the outlet of the storage tank 11 and the inlet of the centrifuge 10, the outlet of the centrifuge 10 is connected with the inlet of the storage tank 11 through a second pipeline 22, that is, both ends of the second pipeline 22 are respectively connected with the outlet of the centrifuge 10 and the inlet of the storage tank 11, the first pump 14 is arranged on the first pipeline 21, and the second pump 15 is arranged on the second pipeline 22; the air blowing pipe 16 extends into the centrifuge 10; one end of a pure water supply pipe 23 is connected to an inlet of the storage tank 11, and the third pump 17 is provided on the pure water supply pipe 23.

Specifically, the pure water supply pipe 23 may be connected to an external pure water supply mechanism to supply pure water when necessary, and the gas blowing pipe 16 may be connected to an external gas blowing mechanism to supply gas when necessary.

Specifically, a circular filter screen 18 is arranged in the centrifuge 10, the first pipeline 21 extends into the centrifuge 10, one end of the first pipeline 21 is opposite to the side wall of the circular filter screen 18, and one end of the air blow pipe 16 is opposite to the side wall of the circular filter screen 18. The circular filter screen 18 is used for filtering the filtrate and filtering out the materials in the filtrate.

In one embodiment, the material processing apparatus further comprises a waste pipe 25 and a waste valve 33, wherein one end of the waste pipe 25 is connected to the outlet of the centrifuge 10, and the waste valve 33 is disposed on the waste pipe 25. The waste valve 33 may be a valve which may be generally manually or electrically controlled. By providing the waste discharge pipe 25 and the waste discharge valve 33, the filtrate in the centrifuge 10 can be completely discharged as needed.

In one embodiment, one end of the second pipe 22 is connected to the waste pipe 25 in an inclined manner, the connection between the waste pipe 25 and the second pipe 22 is located upstream of the waste valve 33, and the included angle between the waste pipe 25 and the second pipe 22 ranges from 0 to 90 degrees.

There are various ways to judge the clarity of the filtrate. In one embodiment, the material processing apparatus further comprises a sampling pipeline 24 and a sampling valve 32, one end of the sampling pipeline 24 is obliquely connected with the waste discharge pipeline 25, the connection position of the waste discharge pipeline 25 and the sampling pipeline 24 is located at the upstream of the waste discharge valve 33, the included angle between the waste discharge pipeline 25 and the sampling pipeline 24 ranges from 0 degree to 90 degrees, and the sampling valve 32 is arranged on the sampling pipeline 24. The sampling valve 32 may be a valve that may be generally manually or electrically controlled. In the process of circulating filtration, to judge whether the filtrate is clear, the sampling valve 32 can be opened to allow a part of the filtrate to flow out from the sampling pipeline 24, and the clarity of the filtrate can be conveniently observed.

In a specific embodiment, the material handling apparatus further comprises a return valve 31, and the return valve 31 is arranged on the second pipe 22 and is located upstream of the second pump 15, i.e. during the flow of the filtrate, the filtrate reaches the return valve 31 first and then the second pump 15. The return valve 31 may be a valve which may be generally manually or electrically controlled, and by providing the return valve 31, the flow of filtrate in the second conduit 22 may be controlled, or the second conduit 22 may be completely closed. In the flow path of the liquid, upstream and downstream are opposite, and the place where the liquid flows first is upstream and the place where the liquid flows later is downstream.

Specifically, the pipes may be directly or indirectly connected to the centrifuge 10 or the storage tank 11. For example, the pure water supply line 23 may be directly connected to the inlet of the storage tank 11, or the pure water supply line 23 may be connected to the second line 22 (specifically, at a position downstream of the second pump 15), that is, the pure water supply line 23 may be indirectly connected to the inlet of the storage tank 11.

In one embodiment, a stirrer 19 is provided in the storage tank 11. Through setting up agitator 19, at loop filter's in-process, agitator 19 lasts or intermittent type work, can avoid the material in the filtrating to sink in holding vessel 11 and pile up, improves the material rate of recovery.

In a specific embodiment, the opening and closing degree of the nozzle of the air blowing pipe 16 can be adjusted, and the included angle between the air blowing pipe 16 and the side wall of the circular filter screen 18 can be adjusted.

The utility model discloses material processing apparatus, in the working process, the filtrating (being the mixture of material and water) in with holding vessel 11 of first pump 14 is pumped to centrifuge 10, carry out centrifugal filtration in centrifuge 10, filtrating after the filtration flows from centrifuge 10's export, then pump to holding vessel 11 in by second pump 15, pump to centrifuge 10 in by first pump 14 again, so circulation is reciprocal, through filtering many times, accumulational material on centrifuge 10's the circular filter screen 18 is more and more, through the increase of material thickness on the circular filter screen 18, change and filter the permeability, realize that more materials are piled up, and then improve the material rate of recovery, reach higher material rate of recovery, the material rate of recovery can reach more than 90%.

And (4) circularly filtering until the filtrate is clear, enabling the third pump 17 to work, adding pure water, and cleaning the materials on the circular filter screen 18. The specific cleaning modes comprise two modes, wherein one mode is that pure water is added discontinuously, the circulation is repeated like the above mode, and the cleaning is carried out to realize that the pH value is less than 8.2; the other is to continue adding pure water while opening the waste valve 33 and perform a rinse to achieve a pH < 8.2.

After the cleaning is completed, air is continuously blown into the centrifuge 10 through the air blowing pipe 16 for dehydration of the material. And after the dehydration is finished, the whole process is finished, and the material treatment is finished. Because the air blowing pipe 16 is adopted for dehydration, the dehydration time is greatly shortened, and the dehydration efficiency is improved.

The gas sparge pipe 16 may blow two different gases into the centrifuge 10: nitrogen or air. When nitrogen is blown in, the opening degree of the pipe orifice of the air blowing pipe 16 is 20% of the opening degree of all the pipe orifices, the included angle between the air blowing pipe 16 and the side wall of the circular filter screen 18 is 90 degrees, air blowing is continued for 1 hour, and a better dehydration effect is achieved. When air is blown in, the opening degree of the pipe orifice of the air blowing pipe 16 is 100% of the whole opening degree, the included angle between the air blowing pipe 16 and the side wall of the circular filter screen 18 is 15 degrees, air blowing is continued for 2 hours, and a better dehydration effect is achieved. The degree of opening, also called the degree of opening and closing, is the degree of opening and closing of the spout.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A material handling apparatus, comprising: the device comprises a centrifugal machine, a storage tank, an air blowing pipe, a first pump, a second pump, a third pump, a first pipeline, a second pipeline and a pure water supply pipeline;

the outlet of the storage tank is connected with the inlet of the centrifuge through a first pipeline, the outlet of the centrifuge is connected with the inlet of the storage tank through a second pipeline, the first pump is arranged on the first pipeline, the second pump is arranged on the second pipeline, and the gas blow pipe extends into the centrifuge;

one end of the pure water supply pipeline is connected with the inlet of the storage tank, and the third pump is arranged on the pure water supply pipeline.

2. The material handling apparatus of claim 1, further comprising a return valve disposed on the second conduit upstream of the second pump.

3. The material processing apparatus as claimed in claim 1, further comprising a waste pipe having one end connected to an outlet of the centrifuge, and a waste valve disposed on the waste pipe.

4. The material processing device as claimed in claim 3, wherein one end of the second pipe is connected to the waste pipe in an inclined manner, the junction of the waste pipe and the second pipe is located upstream of the waste valve, and the included angle between the waste pipe and the second pipe is in the range of 0 to 90 degrees.

5. The material processing device as claimed in claim 3, further comprising a sampling pipe and a sampling valve, wherein one end of the sampling pipe is connected with the waste discharge pipe in an inclined manner, the joint of the waste discharge pipe and the sampling pipe is located at the upstream of the waste discharge valve, the included angle between the waste discharge pipe and the sampling pipe ranges from 0 to 90 degrees, and the sampling valve is arranged on the sampling pipe.

6. The material handling apparatus of claim 1, wherein an agitator is disposed within the storage tank.

7. The material handling device of claim 1, wherein a circular screen is disposed in the centrifuge, the first conduit extends into the centrifuge with an end of the first conduit opposite a sidewall of the circular screen and an end of the blowpipe opposite a sidewall of the circular screen.

8. The material processing device as claimed in claim 7, wherein the gas blown from the gas blowing pipe is nitrogen, the opening degree of the nozzle of the gas blowing pipe is 1-100% of the total opening degree, and the included angle between the gas blowing pipe and the side wall of the circular filter screen is 0-90 degrees.

9. The material processing device as claimed in claim 7, wherein the gas blown from the gas blowing pipe is air, the opening degree of the nozzle of the gas blowing pipe is 1-100% of the whole opening degree, and the included angle between the gas blowing pipe and the side wall of the circular filter screen is 15-90 degrees.