Molten Steel Continuous Casting Separator Structure

Abstract

The invention relates to the field of metallurgy technology, and discloses a molten steel continuous casting isolation plate structure, which includes a crystallizer, and an isolation plate is placed horizontally in the crystallizer. The density of the plate is greater than the density of liquid mold slag and less than the density of molten steel. The isolation plate is installed in the crystallizer through several mounting brackets, and the size of the isolation plate is smaller than the cross-sectional size of the mold. There is a gap between the isolation plate and the wall of the mold. gap. The molten steel continuous casting isolation plate structure of the present invention greatly reduces the reaction amount of strong reducing elements in molten steel and mold slag, ensures the normal function of mold slag, reduces slag inclusion defects and steel leakage accidents, and homogenizes the molten steel flow in the crystallizer. field and temperature field to further improve the quality of the slab.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a molten steel continuous casting isolation plate structure. Background technique [0002] In steel production, it is often necessary to add a certain amount of alloying elements, such as aluminum and rare earth, to steel for a certain purpose. However, these strong reducing elements will interact with oxides in mold flux such as Na during continuous casting 2 O, SiO 2 , B 2 o 3 and other reactions, causing harm: first, the amount of beneficial elements in molten steel is reduced, and inclusions in molten steel are increased; second, the chemical composition of mold slag is greatly changed, such as continuous casting of non-oriented silicon steel with Als>1.0%, Al in mold flux 2 o 3 Rise from 5% to 30%, thus deteriorating the performance of mold powder, causing serious surface quality problems of billets, and even causing breakout accidents. [0003] In order to solv...

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Problems solved by technology

[0006] The purpose of the present invention is to address the shortcomings of the above technology, to provide a molten steel continuous casting isolation plate structure, which can greatly reduce the reaction amount of strong reducing elements and mold slag in molten steel, ensure the normal function of mold slag, and reduce slag entrainment and slag inclusion Defects and steel breakout accidents, homogenizing the flow field and temperature field of molten steel in the mold, further improving the quality of casting slabs

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