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Waste storage battery dismantling processing technology

A technology of waste battery and processing technology, which is applied in the direction of battery recycling, improvement of process efficiency, recycling of waste collectors, etc., and can solve problems such as arsenic secondary pollution, waste of resources, environment, pollution, etc.

Inactive Publication Date: 2020-01-07
ANHUI NARADA RENEWABLE RESOURCE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Pb, PbO, PbO during battery disassembly 2 , PbSO 4 and other substances are discarded into garbage, causing serious waste of resources and environmental pollution, and the anode slime contains various valuable metals such as lead, bismuth, copper, arsenic and precious metals. The traditional lead anode slime treatment includes wet and fire methods Two types, but when these two methods are processed, there is a serious problem of arsenic secondary pollution

Method used

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  • Waste storage battery dismantling processing technology
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  • Waste storage battery dismantling processing technology

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A dismantling process based on waste storage batteries, characterized in that it comprises the following steps:

[0032] Step 1. Soak the waste battery in aqueous sodium hydroxide solution, discharge for 1 hour, and then fix and disassemble the shell of the discharged waste battery to obtain the anode electrode grid, anode slime, and cathode electrode grid;

[0033] When the fixing is disassembled, it is fixed by a fixing device, and the fixing device is as Figure 1-3 As shown, the fixing device includes an upper fixing mechanism 1 and a lower fixing mechanism 2, and the upper fixing mechanism 1 is installed above the lower fixing mechanism 2;

[0034] Such as Figure 1-2As shown, the upper fixing mechanism 1 includes a vertical fixing rod 11, a sliding groove 12, a connecting plate 13, a supporting plate 14, a first fixing block 15 and a first limiting groove 16, and the vertical fixing rod 11 is provided with a sliding Groove 12, connecting plate 13 is installed on...

Embodiment 2

[0041] A dismantling process based on waste storage batteries, characterized in that it comprises the following steps:

[0042] Step 1. Soak the waste battery in aqueous sodium hydroxide solution, discharge for 2 hours, and then fix and disassemble the shell of the discharged waste battery to obtain the anode electrode grid, anode slime, and cathode electrode grid;

[0043] Step 2. Mix the anode slime and aqueous sodium hydroxide solution according to the ratio of solid-to-liquid ratio of 1:4, raise the temperature to 75°C, stir for 2 hours at a speed of 140r / min, control the pressure at 0.1MPa during the stirring process, add 10% super Hydrogen peroxide aqueous solution, control the liquid-solid ratio of 10% hydrogen peroxide aqueous solution and anode slime to 1:2, continue to stir for 30 minutes, filter, collect the filtrate, cool, and wash the filter residue three times with 10% dilute hydrochloric acid solution;

[0044] Step 3: Add the anode electrode grid and the cathod...

Embodiment 3

[0047] A dismantling process based on waste storage batteries, characterized in that it comprises the following steps:

[0048] Step 1. Soak the waste battery in aqueous sodium hydroxide solution, discharge for 2 hours, and then fix and disassemble the shell of the discharged waste battery to obtain the anode electrode grid, anode slime, and cathode electrode grid;

[0049] Step 2. Mix the anode slime and sodium hydroxide aqueous solution according to the ratio of solid to liquid ratio of 1:5, raise the temperature to 75°C, and stir for 2 hours at a speed of 140r / min. During the stirring process, the pressure is controlled at 0.2MPa, and 10% super Hydrogen peroxide aqueous solution, control the liquid-solid ratio of 10% hydrogen peroxide aqueous solution and anode slime to 1:1, continue to stir for 30 minutes, filter, collect the filtrate, cool, and wash the filter residue three times with 10% dilute hydrochloric acid solution;

[0050] Step 3: Add the anode electrode grid and...

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Abstract

The invention discloses a waste storage battery dismantling processing technology which comprises the following steps: soaking a waste storage battery in sodium hydroxide aqueous solution, dischargingfor 1-2 h, then, fixing and dismantling the discharged waste storage battery shell to obtain an anode electrode grid plate, anode mud and a cathode electrode grid plate, processing the anode electrode grid plate, anode mud and the cathode electrode grid plate separately, and under the alkaline condition, taking 10% aqueous hydrogen peroxide solution as a strong oxidant to recycle arsenic and leadelements in anode mud under the pressurizing and warming condition. The waste storage battery dismantling processing technology does not belong to the wet process and the pyrogenic process of traditional lead anode mud treatment, avoid arsenic secondary pollution, and solves the technical problem about arsenic secondary pollution existing in the wet process and the pyrogenic process of traditional lead anode mud treatment when the storage battery anode mud contains multiple valuable metals including lead, bismuth, copper, arsenic and precious metal.

Description

technical field [0001] The invention belongs to the technical field of battery dismantling, in particular to a dismantling process based on waste batteries. Background technique [0002] At present, more than 70% of lead is used in batteries, and more than 40% of lead raw materials are secondary lead materials, of which more than 90% are battery materials. With the rapid development of automobiles, ships, and communication industries, the amount of lead in lead batteries continues to rise. The lead forms of waste lead battery materials are complex, including elemental Pb (4%), PbO (20%), PbO 2 (26%), PbSO 4 (50%). At present, most of the lead materials of batteries are treated by fire recovery, which can be treated by traditional metallurgical equipment such as reverberatory furnace, blast furnace, electric furnace and short rotary kiln, and can also be treated by Kiefset method, Osmelt method and Isa method And QSL method and other methods of direct lead smelting. [00...

Claims

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Application Information

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IPC IPC(8): C22B7/00C22B30/04C22B13/00C22B1/00H01M10/54
CPCC22B1/005C22B7/008C22B13/025C22B13/045C22B30/04H01M10/54Y02W30/84Y02P10/20
Inventor 朱保义沈岑宽陈华勇吴国庆王武钧卢山龙任永刚
Owner ANHUI NARADA RENEWABLE RESOURCE TECH CO LTD
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