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Harmful element removal method for green regeneration of aluminum scrap

A green and elemental technology, applied in the direction of improving process efficiency, can solve the problems of poor quality and difficult removal of aluminum ingots, and achieve the effect of protecting the environment and improving the utilization rate

Inactive Publication Date: 2012-03-28
ANHUI JINYING ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The harmful elements mainly include metal elements such as lead, zinc, magnesium, and manganese, which are difficult to remove, which makes the quality of aluminum ingots difficult to improve.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A method for removing harmful elements from waste aluminum green regeneration. First, the sorted waste aluminum parts are batched and then sent to a melting furnace for melting. When the waste aluminum is smelted to 670-700 ° C, after 15 minutes of melting, the components are tested Analysis, then add lead remover, zinc remover, magnesium remover and manganese remover and scrap aluminum to stir and melt, add 3kg of lead remover, zinc remover, magnesium remover and manganese remover for each ton of waste aluminum , and place the refining frame for the block lead remover, zinc remover, magnesium remover and manganese remover in the depth of 3 / 5 of the molten aluminum.

[0012] The present invention adopts low-temperature smelting when sorting and grading smelting waste aluminum, and the temperature is controlled in the range of 30-100°C above the liquidus temperature of the aluminum alloy for smelting. , magnesium, manganese, separated from the aluminum alloy, so that the...

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Abstract

The invention which provides a harmful element removal method for the green regeneration of aluminum scrap relates to the technical field of aluminum scrap regeneration recovery. The method is characterized in that: the aluminum scrap is smelted to 670-700DEG C for 5-20min, and is subjected to component analysis; a lead removal agent, a zinc removal agent, a magnesium removal agent and a manganese removal agent are added to the aluminum scrap; and the agents and the aluminum scrap are stirred and co-smelted. The method of the invention, which can effectively remove superfluous harmful elements of lead, zinc, magnesium, manganese and the like from aluminum alloy, allows the removal rate to reach above 90%, contents of the harmful elements to be reduced to be lower than international standards, the profit of each ton to be directly improved to 3000-5000yuan, the resource utilization rate to be improved, and environment to be protected.

Description

technical field [0001] The invention relates to the technical field of recycling waste aluminum, in particular to a method for removing harmful elements from green recycling of waste aluminum. Background technique [0002] Aluminum is a basic material closely related to industrial development and people's life, and is widely used in various aspects of the national economy. Due to the gradual increase in people's awareness of environmental protection and circular economy, recycled aluminum has received more and more attention from the state, but aluminum in the recycling link has The problem of environmental pollution and the high content of harmful elements in recycled aluminum seriously restrict the survival and wider application of the recycled aluminum industry. At present, waste aluminum regeneration generally adopts high-temperature melting after primary sorting of waste aluminum in China, and other metal inlays are removed after full melting, and then aluminum ingots a...

Claims

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Application Information

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IPC IPC(8): C22B7/00C22B21/00
CPCY02P10/20
Inventor 宋金林宋彬彬
Owner ANHUI JINYING ALUMINUM