Method for power battery automatic fine-quantity sorting and apparatus thereof

Patent metadata

Field	Value
Publication number	US-11759792-B2
Application number	US-202118041402-A
Country	US
Kind code	B2
Filing date	May 13, 2021
Priority date	Aug 11, 2020
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

The present invention discloses a method for power battery automatic fine-quantity sorting and an apparatus thereof, the method including the following steps of S 1 . The material is crushed, and leveled, and is then subjected to magnetic sorting processing to sort out iron powder; S 2 . The material after magnetic sorting is subjected to electrostatic processing to sort out positive electrode material powder; S 3 . The material after electrostatic processing is subjected to bounce processing to sort out the collector and graphite powder. A magnetic sorting device, an electrostatic sorting device, and a bouncing sorting device are accordingly provided.

First claim

What is claimed is:

1. A method for power battery automatic fine-quantity sorting, comprising:
S1. crushing and leveling a material, and performing a magnetic sorting processing to sort out iron powder;
S2. performing an electrostatic processing on the material after being subjected to the magnetic sorting processing to sort out positive electrode material powder;
S3. performing a bounce processing on the material after being subjected to the electrostatic processing to sort out collector and graphite powder, and
wherein, a sorting apparatus based on the method for power battery automatic fine-quantity sorting, along the direction of material transmission, is successively provided with:
a magnetic sorting device, comprising a permanent magnet rolling wheel ( 100 ), an iron powder hopper ( 200 ) is provided at the lower left of the permanent magnet rolling wheel ( 100 );
an electrostatic sorting device, located at the lower right of the permanent magnet rolling wheel ( 100 ), comprising a grounded roller electrode ( 500 ), a corona electrode ( 300 ) and a static electrode ( 400 ) successively provided at the upper right of the roller electrode ( 500 ), and a brush ( 600 ) in contact with the roller electrode ( 500 ) provided at the lower left, the corona electrode ( 300 ), the static electrode ( 400 ) and the brush ( 600 ) are located at 1, 2, 9 o'clock direction of the roller electrode ( 500 ) respectively;
a bouncing sorting device, located at the lower right of the roller electrode ( 500 ), comprising a drive wheel ( 700 ), a driven wheel 710 ) and a conveyor belt ( 720 ), a deflecting wheel ( 800 ) and a carrier rod ( 810 ) being provided below the driven wheel ( 700 ), one end of the carrier rod ( 810 ) being connected to the deflecting wheel ( 800 ) to form an eccentric wheel mechanism, and the other end being connected to the driven wheel ( 710 ).

2. The method of claim 1 , wherein, in step S1, a stack thickness of the leveled material is 0.8-1 mm.

3. The method of claim 1 , wherein, in step S2, a voltage of the electrostatic processing is 10-30 kV.

4. A sorting apparatus based on a method for power battery automatic fine-quantity sorting, wherein, along the direction of material transmission, successively provided with:
a magnetic sorting device, comprising a permanent magnet rolling wheel ( 100 ), an iron powder hopper ( 200 ) is provided at the lower left of the permanent magnet rolling wheel ( 100 );
an electrostatic sorting device, located at the lower right of the permanent magnet rolling wheel ( 100 ), comprising a grounded roller electrode ( 500 ), a corona electrode ( 300 ) and a static electrode ( 400 ) successively provided at the upper right of the roller electrode ( 500 ), and a brush ( 600 ) in contact with the roller electrode ( 500 ) provided at the lower left; the corona electrode ( 300 ), the static electrode ( 400 ) and the brush ( 600 ) are located at 1, 2, 9 o'clock direction of the roller electrode ( 500 ) respectively;
a bouncing sorting device, located at the lower right of the roller electrode ( 500 ), comprising a drive wheel ( 700 ), a driven wheel ( 710 ) and a conveyor belt ( 720 ), a deflecting wheel ( 800 ) and a carrier rod ( 810 ) being provided below the driven wheel ( 700 ), one end of the carrier rod ( 810 ) being connected to the deflecting wheel ( 800 ) to form an eccentric wheel mechanism, and the other end being connected to the driven wheel ( 710 ).

5. The sorting apparatus of claim 4 , wherein, the sorting apparatus further comprises a feed inlet ( 1200 ) and a scraper ( 1300 ) provided between the feed inlet ( 1200 ) and the permanent magnet rolling wheel ( 100 ).

6. The sorting apparatus of claim 4 , wherein, an inclined guide plate ( 1400 ) is provided between the permanent magnet rolling wheel ( 100 ) and the roller electrode ( 500 ).

7. The sorting apparatus of claim 4 , wherein, a positive electrode material powder hopper ( 1000 ) is provided below the brush ( 600 ).

8. The sorting apparatus of claim 4 , wherein, the driving wheel ( 700 ) and the deflecting wheel ( 800 ) are driven by a same motor ( 1100 ).

9. The sorting apparatus of claim 4 , wherein, a collector hopper ( 900 ) and a graphite powder hopper ( 910 ) are successively provided at the lower right of the driven wheel ( 710 ).

10. The sorting apparatus of claim 4 , wherein, the rotating speed of the permanent magnet rolling wheel ( 100 ) is 0.05-0.2 m/s.

Assignees

• Guangdong Brunp Recycling Technology Co Ltd
• Hunan Brunp Recycling Tech Co Ltd
• Hunan Brunp Ev Recycling Co Ltd

Inventors

• Yu Haijun
• Peng Ting
• Xie Yinghao
• Liu Shumin

Classifications

• H01M10/54 Primary

  Reclaiming serviceable parts of waste accumulators · CPC title

• B09B3/35 Primary

  Shredding, crushing or cutting · CPC title

• B03C1/30 Primary

  Combinations with other devices, not otherwise provided for · CPC title

• B09B3/00

  Destroying solid waste or transforming solid waste into something useful or harmless · CPC title

• B09B5/00

  Operations not covered by a single other subclass or by a single other group in this subclass · CPC title