Device for purifying and stirring non-ferrous metal liquid

Abstract

The invention discloses a device for purifying and stirring non-ferrous metal liquid, which comprises a support, a rolling wheel arranged under the support, a handle at the tail end of the support and the like, wherein a degassing pipe is arranged on the support; the tail end of the degassing pipe is connected with a graphite rod which is provided with an air vent; a multi-level heating device is arranged on the degassing pipe; the degassing pipe is communicated with a vent control valve assembly in series; the vent control valve assembly comprises a plurality of vent valves in parallel mutually; an air inlet of the vent control valve assembly is communicated with an inert gas conduit; and a flowmeter, a circuit control device for controlling the ventilation volume and the heating volume and a control panel are arranged at appropriate positions of the support. Compared with the products in the prior art, the cast molding non-ferrous metal ingot which is refined by utilizing the device provided by the invention has the advantages that: the hydrogen content of alloy is obviously reduced and can reach to 0.10cc / 100g aluminium; the rate of removing impurities in the alloy, that is an impurity removing rate can be enhanced by 10% compared with that of the products processed by using the prior art; and as the hydrogen content and the impurity are reduced, the comprehensive property of the alloy can be enhanced by 10% compared with the prior art.

Description

technical field [0001] The invention relates to a non-ferrous metal liquid purification and stirring device for purifying and stirring the non-ferrous metal liquid in a casting forming forehearth. Background technique [0002] At present, the smelting and product processing of light metals are mainly smelting and processing of aluminum or aluminum alloy products. The inert gas is introduced into the furnace to carry out the purification and stirring process of removing hydrogen and impurities in the furnace, that is, the refining process. After standing still, the aluminum alloy liquid density and the hydrogen content in the alloy liquid are tested to pass the index, and then it can be cast out of the furnace. Refining metal liquid is an extremely important process. The main task of this process is to remove the hydrogen in the alloy liquid, and at the same time remove part of the inclusions in the alloy. It can also stir the alloy liquid to make the composition of the alloy...

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Problems solved by technology

[0003] Its disadvantages are: due to the high technical parameters of the hydrogen removal equipment, the structure is complex and the cost is high. Because it is imported equipment, it is inconvenient to maintain; the average gas consumption of inert gas is high, about 10Kg / ton

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