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Aluminum chip recovery and smelting process

A technology of aluminum shavings and process, which is applied in the field of aluminum shavings recycling and smelting technology, can solve the problems of large aluminum loss and high smelting cost, and achieve the effects of saving energy costs, shortening the process, and avoiding energy waste

Inactive Publication Date: 2019-08-27
襄阳恒德汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The whole process has undergone two smelting, the smelting cost is high, and the aluminum loss is relatively large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Put the waste aluminum material to be recovered into the vibrating screen machine for screening, and the screened aluminum material is collected through the hopper and put into the metal chip crusher for crushing to obtain aluminum chips, which are put into the metal deoiler Deoiling at 65-95°C, put the deoiled aluminum chips into the rotary kiln for drying at 350-450°C, put the dried aluminum chips into the eddy current separator for separation at 20-30Hz Sorting, the sorted aluminum shavings are heated and transported to the smelting furnace through a roller furnace, and smelted at 740-760°C to obtain molten aluminum.

Embodiment 2

[0042] Put the waste aluminum material to be recovered into the vibrating screen machine for screening, and the screened aluminum material is collected through the hopper and put into the metal chip crusher for crushing to obtain aluminum chips, which are put into the metal deoiler Deoiling at 65-95°C, put the deoiled aluminum chips into the rotary kiln for drying at 350-450°C, put the dried aluminum chips into the eddy current separator for separation at 20-30Hz Sorting, the sorted aluminum shavings are heated and transported to the smelting furnace through a roller furnace, and smelted at 740-760°C to obtain molten aluminum.

Embodiment 3

[0044] Put the waste aluminum material to be recovered into the vibrating screen machine for screening, and the screened aluminum material is collected through the hopper and put into the metal chip crusher for crushing to obtain aluminum chips, which are put into the metal deoiler Deoiling at 65-95°C, put the deoiled aluminum chips into the rotary kiln for drying at 350-450°C, put the dried aluminum chips into the eddy current separator for separation at 20-30Hz Sorting, the sorted aluminum shavings are heated and transported to the smelting furnace through a roller furnace, and smelted at 740-760°C to obtain molten aluminum.

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PUM

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Abstract

The invention provides an aluminum chip recovery and smelting process. The process is to perform screening, crushing, oil removal, drying, iron separation, preheating and melting on recovered waste aluminum in sequence to obtain recovered molten aluminum; and the specific steps are as follows: the recovered aluminum is vibrated and screened for crushing; then, an oil remover is used for oil removal and drying; iron is separated; and separated aluminum chips are preheated to enter a smelting furnace for smelting to obtain the recovered molten aluminum. The aluminum chip recovery and smelting process is simple and low in energy consumption, can recycle high-temperature waste gas generated in the process to achieve the purposes of energy conservation and emission reduction, and meanwhile, canshorten the smelting time to further reduce the energy investment.

Description

technical field [0001] The invention relates to the technical field of material recycling, in particular to an aluminum shavings recycling and smelting process. Background technique [0002] During the production and processing of automobile wheels and other forest parts, a large amount of cutting aluminum chips will be generated, and the aluminum chips contain a large amount of cutting fluid, machine tool guide oil, etc. At present, the industry handles aluminum chips by drying and dehydrating, and then establishes a separate furnace for smelting aluminum chips. After the smelting is completed, it is cast into a square aluminum ingot with a forming tank. This aluminum ingot is generally called a secondary aluminum ingot, which has a high iron content. The recycled aluminum ingots can be used as raw materials for casting aluminum alloy wheels after being melted again in the casting workshop. [0003] The whole process has undergone two smelting, which has high smelting cost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B21/00
CPCC22B7/003C22B21/0007C22B21/0092Y02P10/20
Inventor 杨志强
Owner 襄阳恒德汽车配件有限公司
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