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Cleaning, floating and drying integration pre-treating method for scrap aluminum

A pretreatment and flotation technology, applied in the field of waste aluminum pretreatment, can solve the problems of non-drying, low work efficiency, high labor intensity, etc., and achieve the effects of facilitating composition adjustment, improving work efficiency, and reducing production costs.

Inactive Publication Date: 2015-04-22
南通曼特威金属材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current pretreatment methods are manually operated, sorted by hand, and then cleaned. The work efficiency is low, the labor intensity is high, and it cannot be adapted to large-scale production.
[0005] Although some enterprises carry out mechanized pretreatment, cleaning, flotation and drying are carried out separately. On the field, some don't even dry
And only one flotation is carried out, and the sorting of raw materials is not thorough, so there are defects in complex components and the inability to accurately control the chemical composition of aluminum ingots

Method used

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  • Cleaning, floating and drying integration pre-treating method for scrap aluminum
  • Cleaning, floating and drying integration pre-treating method for scrap aluminum
  • Cleaning, floating and drying integration pre-treating method for scrap aluminum

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Embodiment 1

[0017] Step S0: Waste aluminum materials are sorted and processed according to length, specifically:

[0018] Sorting, selecting and classifying waste aluminum materials according to their lengths; sorting waste aluminum materials into three categories with a length of less than 0.8cm, 0.8cm-11cm and above 11cm, of which, two types of waste aluminum are 0.8cm-11cm and above 11cm As a raw material for smelting recycled aluminum ingots.

[0019] Aluminum scrap with a length of more than 11cm is directly cleaned and dried.

[0020] The length between 0.8cm-11cm adopts the integrated pretreatment method of washing, flotation and drying, as follows:

[0021] Step S1: Perform pretreatment on waste aluminum of 0.8cm-11cm, and clean the waste aluminum material through two rinsing systems. In the rinsing system, all non-metallic impurities in the waste aluminum are removed by using the method of water countercurrent.

[0022] Step S2: First flotation, the pretreated waste aluminum ...

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Abstract

The invention relates to a cleaning, floating and drying integration pre-treating method for scrap aluminum. The method is characterized in that firstly, pretreatment is carried out, and a scrap aluminum material is cleaned through a two-time rinsing system, so that impurities on the surface of the scrap aluminum material are removed; through one-time floating, magnesium materials and other impurities in the scrap aluminum material are suspended on a liquid surface through one-time floating and then are scraped out; aluminum materials in the scrap aluminum material are screened out through two-time floating; and finally, drying is carried out, the floated aluminum materials are dried through recycled waste heat, and it is ensured that the water content in the aluminum materials is lower than 0.3 percent. The method has the advantages that through cleaning, floating and drying integration treatment, the scrap aluminum material enters a machine device to be cleaned, floated and dried, and a clean pure aluminum material is output; no any repeated production links exist in the method, and therefore before being put into a furnace, the aluminum materials are clear in chemical component and low in water content, and energy consumption is saved; and a smelted renewable aluminum alloy ingot is high in quality.

Description

technical field [0001] The invention relates to a waste aluminum recovery process, in particular to a waste aluminum pretreatment method in the waste aluminum recovery process. Background technique [0002] Recycled aluminum is aluminum ingots that meet the requirements of various standards and are produced by smelting and preparing recycled aluminum scrap parts or scraps and scrap aluminum wires in the process of producing aluminum products as the main raw materials. This kind of aluminum ingot adopts recycled waste aluminum, which has lower production cost, and it is the reuse of natural resources, which has strong vitality, especially in today's rapid development of science and technology and continuous improvement of people's living quality, the product update The frequency of replacement is accelerating, and the recycling and comprehensive utilization of waste products has become an important issue for the sustainable development of human beings. Therefore, the recyclin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B21/06
Inventor 陈东宁姚蕴辉倪红军周红林
Owner 南通曼特威金属材料有限公司
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