Molten aluminum refining degassing and slag-removing device

Abstract

The invention relates to a molten aluminum refining degassing and slag-removing device. The molten aluminum refining degassing and slag-removing device comprises a heat insulation furnace and a bracket, wherein the heat insulation furnace is provided with a cover body which is connected with a hoisting plate by a connection rod; the hoisting plate is connected with the bracket by a hydraulic retractable rod; the lower end of the cover body is connected with an agitating shaft; a driving motor is arranged at the upper end of the cover body; the upper end of the agitating shaft vertically penetrates through the cover body and is connected with the driving motor; the lower end of the agitating shaft is arranged in the heat insulation furnace and is further connected with a graphite rotor; an air vent is formed in the surface of the graphite rotor; the agitating shaft is a hollow shaft and is internally provided with an air ventilation pipeline; one end of the air ventilation pipeline stretches out of the agitating shaft to be connected with a nitrogen generator; the other end of the air ventilation pipeline is communicated with the air vent of the graphite rotor. According to the molten aluminum refining degassing and slag-removing device, hydrogen and non-metal impurities in molten aluminum can be removed and the molten aluminum is purified; scrap caused by needle holes and the non-metal impurities after the molten aluminum is cast into a casting is reduced; the inner quality of the casting is improved greatly and the market competitiveness of products is improved.

Description

technical field [0001] The invention relates to the technical field of molten aluminum refining equipment, in particular to a degassing and slag removal device for refining molten aluminum. Background technique [0002] The refining process of molten aluminum is an important process in the manufacturing process. At present, the existing equipment is only designed for degassing, and the refining agent or slag removal agent used in the refining process is often manually pressed into the molten aluminum with a bell jar, and then manually stirred with a related slag picking tool, while the bell jar used Utensils and slag picking tools are generally made of stainless steel or metal materials. During the stirring process, the high temperature of the aluminum liquid is easy to corrode the utensils, causing the content of some metal elements in the alloy aluminum liquid to exceed the standard and affecting the quality of the aluminum liquid. Furthermore, the manual stirring method ...

AI Technical Summary

Problems solved by technology

At present, the existing equipment is only designed for degassing, and the refining agent or slag removal agent used in the refining process is often manually pressed into the molten aluminum with a bell jar, and then manually stirred with a related slag picking tool, while the bell jar used Utensils and slag picking tools are generally made of stainless steel or metal materials. During the stirring process, the high temperature of the aluminum liquid is easy to corrode the utensils, causing the content of some metal elements in the alloy aluminum liquid to exceed the standard and affecting the quality of the aluminum liquid. Furthermore, the manual stirring method The production quality of the refining degassing and slag removal operation will be affected by the operating standards or proficiency of the personnel and the high temperature environment, which will eventually cause the quality of the molten aluminum to be unstable and affect the performance, strength and safety of the product

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