Cyclic utilization method and apparatus of lead dioxide from storage cells

A technology of lead dioxide and battery, applied in battery recycling, recycling technology, recycling by waste collectors, etc., can solve the problems of increased pollution, high cost, and increased capital costs, and achieve low facility investment, low cost, and high production capacity big effect

Inactive Publication Date: 2006-07-19
赵恒祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Using electrolytic lead as raw material to produce red lead, the cost is high
[0005] (2) The production of red lead needs to add facilities such as ball mills, ovens, and crushing, and requires capital investment to increase costs
[0006] (3) The production of red lead takes up space and increases pollution

Method used

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  • Cyclic utilization method and apparatus of lead dioxide from storage cells
  • Cyclic utilization method and apparatus of lead dioxide from storage cells
  • Cyclic utilization method and apparatus of lead dioxide from storage cells

Examples

Experimental program
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Embodiment 1

[0032] Remove the scrap battery plate, carefully separate the positive plate from the negative plate, dry the positive plate at 90°C, take out the positive plate when the moisture content is less than 10wt%, and manually knock off the lead paste on the plate to make The grid is separated from the lead paste, and when the lead dioxide powder is collected, it is pulverized with a roller mill, and the particle size is passed through a 300-mesh sieve, and the 5wt% of the lead powder amount is added in the lead powder when mixing the paste.

[0033] Such as figure 1 As shown, the device is composed of a positive pressure fan 1, a negative pressure fan 2, a roller mill 3, a powder collector 4, an air compressor 5, an air nozzle 6 and a separator 8. The positive pressure fan 1 is directly connected with the roller mill 3, and the negative pressure fan communicates with the roller mill 3 through the powder collector 4, the pipeline and the separator 8. An air compressor 5 is arranged...

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Abstract

The invention relates to a cycle utilization method and relative device of accumulator lead dioxide. It comprises: drying the anode plate in the temperature of 80-100Deg. C; when the water content is less than 10wt%, taking out anode plate and separating the plate grid with lead pastern; milling the lead pastern on the milling breaker into PbO2 powder; controlling the wind content of wind nozzle of positive fan and passive fan to form micro passive pressure in the milling breaker; collecting the PbO2 powder into powder collector; adding lead powder which is 4.5-5.0wt% of collected PbO2 powder. The invention can utilize the waste accumulator electrode plate which can improve the initial capacity and improve the cycle service life of accumulator.

Description

technical field [0001] The invention relates to the recovery and reuse of lead dioxide in scrap batteries. technical background [0002] At present, the recovery and reuse of lead dioxide in scrap batteries is made by preparing trilead tetroxide (Pb 3 o 4 , commonly known as red pill) to complete. The production process is as follows: electrolytic lead (raw material) is made into lead powder (PbO) through a Barton or Shimadzu ball mill, heated to 450-500°C for baking, and finally ground to a certain fineness to obtain PbO. Lead (Pb 3 o 4 ). [0003] The disadvantages of this recycling method are: [0004] (1) Use electrolytic lead as raw material to produce red lead, and the cost is high. [0005] (2) The production of red lead needs to add facilities such as ball mills, ovens, and crushing, and it is necessary to invest funds to increase costs. [0006] (3) Red lead production takes up space and increases pollution. Contents of the invention [0007] The object o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54
CPCY02W30/84
Inventor 赵恒祥
Owner 赵恒祥
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