A short-process aluminum slag treatment device in front of the furnace

Abstract

The invention relates to the technical field of aluminum slag recovery and treatment, and discloses a short process aluminum slag treatment device in front of a furnace. The problems that according toan existing aluminum slag treatment device and method, the recovery rate of molten aluminum in aluminum slag is low, and oxidation of the molten aluminum and energy consumption are high are solved. Mainly, a slag pressing device is connected in front of a furnace mouth, slag pressing and the smelting furnace are integrated, the process is shortened, extrusion is directly carried out in front of the furnace, and the extruded molten aluminum directly flows back into the smelting furnace through an inclined work platform. By means of the device, the slag pressing efficiency of the aluminum slagis improved, the contact time of the aluminum slag and air is shortened to the maximum degree, burning loss of the molten aluminum is reduced, oxidation of the molten aluminum is avoided, the recoveryrate of the molten aluminum in the aluminum slag is increased, meanwhile, unnecessary waste generated when the aluminum slag and the extruded molten aluminum are transferred in the conventional aluminum slag treatment process is reduced, the energy consumption is reduced, the problems of environmental pollution and the like caused by treatment of transfer of the aluminum slag are further reduced,and then green recovery of the aluminum slag is achieved from the source.

Description

technical field [0001] The invention relates to the technical field of aluminum slag recovery and treatment, in particular to a short-process aluminum slag treatment device in front of a furnace. Background technique [0002] A large amount of aluminum slag is produced in the production process of electrolytic aluminum and cast aluminum alloy. These aluminum slags contain more metallic aluminum and a certain amount of toxic and harmful substances such as aluminum oxide, silicon dioxide, magnesium oxide, and soluble salts. . In 2016, the country included aluminum slag in the "National Hazardous Waste List", because if these aluminum slags are not recycled, the toxic and harmful substances in the aluminum slag will not only pollute the environment, but also the waste of a large amount of aluminum metal contained in it will Causes a waste of aluminum resources. Compared with the production of primary aluminum, recycling aluminum from aluminum slag not only consumes less energy...

AI Technical Summary

Problems solved by technology

[0007] The present invention overcomes the deficiencies in the prior art, and proposes a short-process aluminum slag treatment device in front of the furnace, which solves the problem of low recovery rate of aluminum water in aluminum slag, oxidation of aluminum water and large energy consumption in the existing aluminum slag treatment device and method The problem

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