Grading recycling system and grading recycling method for waste aluminum ring-pull cans

Abstract

The invention relates to a grading recycling system and a grading recycling method for waste aluminum ring-pull cans. The system comprises a sorting system, a crushing system, a paint removing system, a melting system, a refining system, a casting system, a dust removal system and a waste gas treatment system. The sorting system is connected with the crushing system, and the dust removal system is connected with the crushing system and the sorting system. The paint removing system is connected with the crushing system, the melting system and the waste gas treatment system. The refining system is connected with the melting system and the casting system is connected with the refining system. The coating removal rate of the waste aluminum ring-pull can is greater than 99%; the non-degradation use of the waste aluminum ring-pull can is realized; the recovery rate of the waste aluminum ring-pull cans is greater than 96%; the purity of the sorted waste aluminum ring-pull cans is greater than 98%; and the grading recycling system is safe, environment-friendly, reasonable in configuration and capable of realizing continuous and stable operation. And through the advanced crushing technology, continuous operation of the device can be achieved, and meanwhile the service life of the device is prolonged.

Description

technical field [0001] The invention belongs to the field of aluminum waste recycling, in particular to a system and method for recycling pop cans made of waste aluminum. Background technique [0002] The surface of waste aluminum cans is generally coated with resin-based paint or acrylic paint, and these paints generally contain metal oxides for fuel. Recycling waste aluminum cans is mainly to solve the problem of separation of the surface paint layer. The waste aluminum cans contain a paint layer with a mass fraction of 2-4%. Both the inner and outer surfaces contain paint, which contains a small amount of metal oxides. The main component is titanium dioxide. The coating on the inner and outer surfaces of aluminum cans is easy to recover during the recycling process. Reducing the recovery rate of aluminum and the quality of recycled aluminum will easily lead to secondary pollution. The method of painting and the degree of paint removal directly affect the quality and cost...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects existing in the prior art, the object of the present invention is to provide a system and method for recycling and utilizing waste aluminum pop cans to solve the problem of surface coating of waste aluminum pop cans, downgrading of aluminum pop cans, low recycling rate of waste aluminum and secondary problems. Secondary pollution and other issues

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