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Recovery method for electronic waste and waste lead-acid cells

A technology for electronic waste and lead-acid batteries, applied in the field of waste recycling, can solve the problems of high metal recovery rate, low cost, environmental pollution, etc., and achieve the effects of high metal recovery rate, low cost, and overcoming environmental pollution.

Inactive Publication Date: 2014-08-20
沙明军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of the prior art that cause environmental pollution, and provide a method for recycling electronic waste and waste lead-acid batteries that does not pollute the environment with high metal recovery rate and low cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The recycling method of electronic waste and waste lead-acid batteries in this example, the technological process is as follows: crushing process: crushing electronic waste and waste lead-acid batteries, separating metal and plastic, recycling the plastic part separately, and treating the metal part as metal waste Miscellaneous materials enter the next process; batching process: compound the aforementioned metal waste miscellaneous materials and ores with a lead content of 25% to 60% to obtain compound ingredients with a lead content of 15%; pressing pelletizing process: mix the aforementioned compound ores Add limonite and limonite into the ball press to press into pellets; mixed smelting process: put the pellets and limestone into the smelting furnace for smelting, all of which are smelted with biomass charcoal to obtain crude lead and molten slag of the smelting furnace , the generated flue gas is discharged after recovering soot; fine analysis process: lead ingots ar...

Embodiment 2

[0038] The recycling method of electronic waste and waste lead-acid batteries in this example, in addition to the batching process, metal waste miscellaneous materials, mining waste rock (lead content 5%) and lead oxide zinc sub-concentrate (lead content 25%) are compounded , Obtaining lead content is except that the composite ore of 10%, all the other are with embodiment one.

Embodiment 3

[0040] In the recycling method of electronic waste and waste lead-acid batteries in this example, in addition to the batching process, metal waste miscellaneous materials, mining waste rocks (lead content 5%), ore dressing tailings (lead content 5%), refractory lead raw materials Ore (10% lead content), zinc leaching slag and refined lead powder containing about 60% lead content are compounded to obtain a compound ore with a lead content of 16%, and the rest are the same as in Example 1.

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PUM

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Abstract

The invention relates to a recovery method for electronic waste and waste lead-acid cells, which belongs to the field of waste recovery. The recovery method comprises the following process flow: a crushing procedure for obtainment of a metal waste mixed material; a batching procedure of compounding the metal waste mixed material with ore having lead content of 25 to 60% so as to obtain a compound material with lead content of greater than 10%; a pellet ore compacting procedure of compacting the compound material and limonite into pellet ore; a mixing and smelting procedure of smelting biomass charcoal so as to obtain crude lead; a refined precipitation procedure for obtainment of a lead ingot; a fuming procedure; a slag iron smelting procedure for obtainment of slag iron and fused smelting furnace slag; and a ceramsite preparation procedure of molding the fused smelting furnace slag so as to obtain ceramsite, wherein the ceramsite produced in the ceramsite preparation procedure is used for planting photosynthetic bamboo which is then subjected to carbonization so as to obtain biomass charcoal, and the produced biomass charcoal is used in the mixing and smelting procedure. The method provided by the invention overcomes the defect of environmental pollution in the prior art and has the advantages of a high recovery rate, low cost and no pollution to the environment.

Description

Technical field [0001] The invention relates to the field of waste recycling, in particular to a method for recycling electronic waste and waste lead-acid batteries. Background technique [0002] Traditional electronic waste treatment basically uses manual dismantling, combined with strong acid corrosion of metals, which not only has high dismantling costs, but also produces a large amount of waste water that pollutes the environment, especially the heavy metals in waste water that pollute the environment. Traditional lead-acid battery recycling uses coal for direct combustion or gas for smelting, the metal recovery rate is low, and smelting waste gas pollutes the environment. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art that cause environmental pollution, and provide a recycling method for electronic waste and waste lead-acid batteries that has high metal recovery rate, low cost and does not pollute th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00C22B7/00C22B13/00C22B19/30C22B58/00C22B41/00
CPCY02P10/20
Inventor 沙明军
Owner 沙明军
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