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Waste lead paste recycling processing method

A technology of recycling and waste lead paste, applied in the field of lead-acid batteries, can solve problems such as waste of resources, threats to the ecological environment and human health

Inactive Publication Date: 2020-02-14
CHAOWEI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the vigorous development of related electric mopeds, electric tricycles, electric vehicles, energy storage communications, electric power and other fields, lead-acid batteries will continue to grow, so the recycling of a large number of scrapped batteries will become a huge social problem. Lead-acid batteries themselves The scrapping period caused by corrosion, passivation, etc. is generally 3-5 years. In recent years, the number of scrapped lead-acid batteries replaced from vehicles, ships, and communication base stations in my country is huge every year. Scrapped batteries are not only a serious waste of resources, but also have a negative impact on the ecology. serious threat to the environment and human health

Method used

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Embodiment Construction

[0012] Such as figure 1 , the recovery flowchart of waste lead-acid battery of the present invention, the waste lead-acid battery recovery method step of the present invention is as follows:

[0013] (1) Used batteries are charged in series

[0014] Charge the waste lead-acid batteries in series at 0.15C current limit voltage 14.7V / only for 8-12h.

[0015] (2) Punching and acid pouring of waste lead-acid batteries

[0016] The cover of the fully charged waste lead-acid battery is punched, and the acid solution in the waste lead-acid battery is poured out and collected after punching, and the collected waste acid is directly used for the preparation of battery chemical acid after filtering and removing impurities.

[0017] (3) Crushing and sorting of waste batteries

[0018] After the waste lead-acid battery is broken by a crusher, the gravity flotation method is used to separate the lead paste, lead parts and grids, plastic cases and AGM separator paper. Plastic cases and ...

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Abstract

The invention relates to a waste lead paste recycling processing method. The method comprises the following steps of: firstly, separating filter residues and a filtrate from a waste lead paste; secondly, purifying the filtrate separated from the waste lead paste; and thirdly, purifying the filter residues separated from the waste lead paste. The recycling processing method also protects a recycling method of a waste lead-acid storage battery. The recycling processing method is efficient and environment-friendly.

Description

technical field [0001] The invention relates to the field of lead-acid batteries. Background technique [0002] Lead-acid batteries are closely related to the national economy and people's livelihood, such as electric power, transportation, information and other industries, and are indispensable products for social production and operation and human life. With the vigorous development of related electric mopeds, electric tricycles, electric vehicles, energy storage communications, electric power and other fields, lead-acid batteries will continue to grow, so the recycling of a large number of scrapped batteries will become a huge social problem. Lead-acid batteries themselves The scrapping period caused by corrosion, passivation, etc. is generally 3-5 years. In recent years, the number of scrapped lead-acid batteries replaced from vehicles, ships, and communication base stations in my country is huge every year. Scrapped batteries are not only a serious waste of resources, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B13/02C22B5/12C22B7/00C22B1/00H01M10/54
CPCC22B1/005C22B5/12C22B7/001C22B13/025H01M10/54Y02W30/84Y02P10/20
Inventor 代少振陈幸项晨
Owner CHAOWEI POWER CO LTD
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