CN214681378U

CN214681378U - Special high-speed mixer for lithium ion ternary anode material

Info

Publication number: CN214681378U
Application number: CN202023215787.3U
Authority: CN
Inventors: 刘玉; 曾奇昇; 易亮; 张隆杰; 赖怀麟; 陈侣衡; 刘美景; 黄殿华; 袁海涛
Original assignee: Yibin Libao New Materials Co Ltd
Current assignee: Yibin Libao New Materials Co Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-11-12
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a dedicated high-speed mixer of lithium ion ternary cathode material, compounding bucket and motor on base and setting and base, compounding bottom of the barrel portion is equipped with rotating vane, lower part lateral wall and is equipped with the discharge gate, compounding barrel head portion is equipped with the air outlet, be equipped with the ventilative cap on the air outlet, compounding barrel lateral wall is connected with the fan through the admission line, the internal diameter that one end is connected with the fan to the admission line is greater than the internal diameter of being connected one end with the compounding bucket. The utility model discloses when high-speed mixer moves, provide cooling air in to its compounding bucket, further reduce the temperature of mixing material, because the inlet duct is little, the air is the injection form and advances if in the compounding bucket, make the interior high-speed mixing material of bucket with more anomalous mode motion, increased the degree of mixing, the vapor in the air will compounding bucket is taken out simultaneously, has effectively prevented the high-speed mixer caking, has glued the wall.

Description

Special high-speed mixer for lithium ion ternary anode material

Technical Field

The utility model relates to a high-speed mixing arrangement of powder material, especially a dedicated high-speed mixer of lithium ion ternary cathode material.

Background

In recent years, the new energy automobile industry in China is developed vigorously along with policy warm air, the market space of the power battery is wide, and the high-specific-energy power battery is the key point of future research and development and industrialization; a large number of researches show that the high-nickel anode material (Ni is more than or equal to 80 percent), has higher reversible specific capacity (more than 200mAh/g) and better cycle stability, and is suitable to be used as the anode material for the high-specific-energy power battery. In the preparation process of the high-nickel ternary cathode material, a ternary precursor, a lithium source and an additive are required to be subjected to dry primary mixing in a high-speed mixer to obtain a primary mixed material, and then the steps of primary sintering, water washing, coating and the like are carried out. The high-speed mixer adopted in the mixing process is a special mixer for the lithium battery, the structure and the principle of the mixer are similar to those of an SHR high-speed mixer, the main structure of the high-speed mixer comprises a mixing barrel, rotating blades, a transmission device, a discharging door and a cooling device, and the mixing barrel body is of an arc structure.

The high-speed mixer utilizes the fast rotation of bottom rotating vane, makes the material do tangential motion under the effect of centrifugal force to be blockked by the baffling board, disturb the material flow direction, make the material carry out irregular flow. And one part of the rising materials falls down under the action of gravity, one part of the rising materials falls down after impacting a top cover of the high-speed mixer, one part of the rising materials falls down after impacting the inner wall of the high-speed mixer, the falling materials are thrown up by the rotating blades again, and finally the materials are uniformly mixed. In the working process of the high-speed mixer, materials rub against the materials, the rotating blades and the inner wall of the high-speed mixer to generate a large amount of heat. The high-speed mixer transfers heat generated during high mixing by arranging a cooling water jacket on the outer wall. At this moment, under the effect of cooling water, the high wall temperature that mixes is lower, and the heat that produces when the material mixes at a high speed makes the inside moisture evaporation that contains of material, and evaporation moisture condenses into the drop of water when meetting the lower high inner wall that mixes of temperature, leads to powder material to glue wall, caking, influences and mixes and heat transfer effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a can effectively reduce the heat that produces in the high-speed mixer mixing process, can not lead to the powder material to glue the dedicated high-speed mixer of lithium ion ternary cathode material of wall, caking simultaneously.

The utility model provides a technical scheme that its technical problem adopted is: dedicated high-speed mixer of lithium ion ternary cathode material, including base and setting and compounding bucket and motor on the base, compounding bottom of the barrel portion is equipped with rotating vane, the lower part lateral wall is equipped with the discharge gate, compounding top of the barrel portion is equipped with the air outlet, be equipped with the ventilative cap on the air outlet, compounding barrel lateral wall is connected with the fan through admission line, the internal diameter that admission line and fan are connected one end is greater than the internal diameter of being connected one end with the compounding bucket.

Further, an air drying agent is arranged in the air inlet pipeline.

Furthermore, a mesh valve for positioning the air drying agent is arranged in the air inlet pipeline.

Furthermore, the outer wall of the air inlet pipeline is provided with a cooling water pipeline.

Further, the height of the ventilation cap is 10cm, and the diameter of the air outlet is 15 cm.

Furthermore, the inner diameter of the end, connected with the mixing barrel, of the air inlet pipeline is 1 cm.

The utility model has the advantages that: the utility model discloses when high-speed mixer moves, provide cooling air in to its compounding bucket, further reduce the temperature of mixing material, because the inlet duct is little, the air is the injection form and advances if in the compounding bucket, make the interior high-speed mixing material of bucket with more anomalous mode motion, increased the degree of mixing, the vapor in the air will compounding bucket is taken out simultaneously, has effectively prevented the high-speed mixer caking, has glued the wall.

Drawings

FIG. 1 is a schematic structural diagram of a high-speed mixer according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an air inlet duct of the high-speed mixer according to the embodiment of the present invention;

labeled as: 1-mixing barrel, 2-blower, 3-air inlet pipeline, 4-ventilation cap, 5-cooling water pipeline, 6-air drying agent, 7-mesh valve, 8-motor, 9-rotating blade, 10-discharge hole and 11-base.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example (b):

as shown in fig. 1 and 2, the utility model discloses a dedicated high-speed mixer of lithium ion ternary cathode material, including base 11 and mixing barrel 1 and the motor 8 of setting and 11 on the base, mixing barrel 1 bottom is equipped with rotating vane 9, mixing barrel 1 lower part lateral wall is equipped with discharge gate 10, mixing barrel 1 top is sealed lid, sealed covering is equipped with feed inlet and air outlet, be equipped with ventilative cap 4 on the air outlet, mixing barrel 1 lateral wall upper portion is connected with fan 2 through admission line 3, the internal diameter that admission line 3 and fan 2 are connected one end is greater than the internal diameter of being connected one end with mixing barrel 1. Namely, the inner diameter of one end of the air inlet pipeline 3 is larger than that of the air outlet, and the inner diameter of one end of the air outlet is 1 cm; an air drying agent 6 is arranged in the air inlet pipeline 3, the air drying agent 6 is positioned and fixed in the air inlet pipeline 3 by adopting a mesh valve 7, the air drying agent 6 is a solid drying agent and needs to be replaced periodically, and when the air drying agent 6 needs to be replaced, the mesh valve 7 is opened, and the air drying agent 6 is poured out from one end with the large caliber of the air inlet pipeline 3 for replacement; a cooling water pipeline is wound on the outer wall of the air inlet pipeline 3 and used for cooling air in the air inlet pipeline 3; the diameter of an air outlet on a sealing cover at the top of the mixing barrel 1 is 15cm, and the height of a ventilation cap 4 on the air outlet is 10 cm.

The high-speed mixer begins the during operation, fan 2 begins work simultaneously, set up the fan and open the intermittent time, work 1min, intermittent type 1min, then work 1min again, the air inlet pipe 3 of fan 2 suction, after 6 drying of air drying agent and circulating water cooling, osculum through inlet pipe 3 gets into compounding bucket 1, because the osculum diameter is very little, the air is the form of spouting and gets into compounding bucket 1, the air that high-speed got into makes the material carry out more anomalous motion, it is more even to mix, carry out the heat exchange between cooling air and the material, make the mixed material temperature reduce. After the air enters, the pressure in the mixing barrel 1 rises, the air only flows out of the ventilating cap 4 at the air outlet at the top of the mixing barrel 1, and the flowing-out air takes away redundant water vapor in the high-speed mixer, so that the materials in the high-speed mixer are prevented from caking and sticking to the wall. Because the air outlet is sleeved with the ventilation cap 4, the powder material can be prevented from overflowing, air and mixed materials are separated, the ventilation cap 4 needs to be cleaned regularly, and the smoothness of the air outlet is ensured.

Claims

1. Dedicated high-speed mixer of lithium ion ternary cathode material, including base and setting and the compounding bucket and the motor on the base, compounding bottom of the barrel portion is equipped with rotating vane, lower part lateral wall and is equipped with discharge gate, its characterized in that: the air outlet is arranged at the top of the mixing barrel, the air outlet is provided with an air permeable cap, the side wall of the mixing barrel is connected with a fan through an air inlet pipeline, and the inner diameter of one end, connected with the fan, of the air inlet pipeline is larger than that of one end, connected with the mixing barrel, of the air inlet pipeline.

2. The high-speed mixer for a lithium ion ternary positive electrode material according to claim 1, wherein: and an air drying agent is arranged in the air inlet pipeline.

3. The high-speed mixer for a lithium ion ternary positive electrode material according to claim 2, wherein: and a mesh valve for positioning the air drying agent is arranged in the air inlet pipeline.

4. The high-speed mixer for a lithium ion ternary positive electrode material according to claim 1, wherein: and a cooling water pipeline is arranged on the outer wall of the air inlet pipeline.

5. The high-speed mixer for a lithium ion ternary positive electrode material according to claim 1, wherein: the height of the ventilation cap is 10cm, and the diameter of the air outlet is 15 cm.

6. The high-speed mixer for a lithium ion ternary positive electrode material according to claim 1, wherein: the inner diameter of one end of the air inlet pipeline connected with the mixing barrel is 1 cm.