Non-contact metal liquid surface slag layer electromagnetic automatic treatment device and method

Abstract

The invention provides a non-contact metal liquid surface slag layer electromagnetic automatic treatment device and method. A traveling wave magnetic field generator is placed above a metal liquid surface slag layer, does not make contact with the metal liquid surface slag layer, and generates a traveling wave magnetic field by introducing an alternating current to interact with metal liquid to generate electromagnetic force, the electromagnetic force pushes the metal liquid to move towards a slag opening, the flowing metal liquid drives the slag layer through the effect of shearing force to enter a slag filter through an automatic lifting sliding baffle at the slag opening, floating slag with the small amount of metal liquid flows through a slag filtering layer to be filtered out, the metal liquid flows to the lower part of the slag filter for recycle. According to the non-contact metal liquid surface slag layer electromagnetic automatic treatment method, the positions of the traveling wave magnetic field generator and an automatic lifting slag baffle are adjusted in real time so as to achieve the optimal slagging-off effect, the power of a heating device is adjusted in real timeto heat the slag filter, thus the metal liquid or the slag are prevented from being solidified to plug the slag filter, and liquid metal in a container is subjected to heat compensation. The non-contact metal liquid surface slag layer electromagnetic automatic treatment device is high in slagging-off efficiency, can treat the slag in real time and recycle the metal liquid in time, and a process iseasy to operate and easy to popularize.

Description

technical field [0001] The invention relates to a metal liquid production and treatment process and device, in particular to a metal liquid surface slag layer treatment device and method, which are applied in the technical field of metal smelting process or hot-dip plating chemical process. Background technique [0002] In the field of metal technology, slag will inevitably be produced, and these slags will often affect product quality, product qualification rate and production efficiency. During the process of process treatment or production and use, for the molten liquid metal held in the container, there are generally three types of slag in the container: the bottom slag deposited in the lower part of the molten metal, which can be manually disposed of when production is stopped; the slag suspended in the The slag inside the molten metal can be treated by physical and chemical reaction methods; the slag floating on the surface of the metal liquid is composed of the oxidat...

AI Technical Summary

Problems solved by technology

When the metal plate enters the zinc liquid, the zinc slag may first adhere to the metal plate, forming defects, or bring the zinc slag into the zinc liquid to contaminate the zinc liquid; when the metal plate is pulled out of the zinc liquid, The slag on the surface of the zinc liquid will adhere to the zinc layer of the metal plate, which will seriously affect the quality of the galvanized layer, cause the coating to be rough, and even produce zinc tumors, which will seriously affect the pass rate of the galvanized metal plate

At present, the production process of hot-dip galvanized sheets mostly uses slag rake tools for manual slag removal or mechanical slag removal to reduce the slag near the metal plate, reduce the adhesion of slag, and improve the quality of galvanized workpieces. However, this method of slag removal The efficiency is low, the effect is poor, and the contact with the molten metal during the slag removal process may also pollute the molten metal

[0004] In recent years, with the development of electromagnetic technology, some researchers have used electromagnetic separation or purification technology to remove impurities in molten metal, but there is still no efficient and effective means for removing slag on the surface of molten metal

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