Open AccessSpling of slots in chaff as an effect of using mixtures with a regulated composite related basis in the bathroom in gas structures
Author(s) -
V Kamkin,
S.K. Tokarev,
A Mіshalkіn,
R Ankudinov,
O Bezshkurenko
Publication year - 2018
Publication title -
teoriâ i praktika metallurgii
Language(s) - English
Resource type - Journals
ISSN - 1028-2335
DOI - 10.34185/tpm.6.2018.06
Subject(s) - smelting , slag (welding) , oxidizing agent , materials science , lime , metallurgy , refining (metallurgy) , chemical composition , carbon fibers , steelmaking , oxygen , ferroalloy , metal , composite number , chemistry , composite material , organic chemistry
The purpose of the work is to select a rational mode of slag formation in oxygen converters and chipboard. It should be based on the study of the influence of the chemical and component composition on the physical and chemical properties of slag, which determine its refining capacity. The physicochemical substantiation of the rational component and chemical composition of fluxes for the formation of a slag phase with given physical and chemical properties during the smelting of electric steel is given. It has been shown that when reducing the oxidation intensity of carbon in a metal melt and in the conditions of the extraction process for the formation of a stable gas-slag foam, the use of complex slag-forming mixtures containing natural minerals and man-made wastes on the basis of carbon and iron oxides is used. Increasing the efficiency of applying slag-forming mixtures with an adjustable CaO: CaCO3: C: FexOy ratio is achieved by implementing a method for introducing a disperse material into a carrier gas stream with an oxidizing potential, depending on the carbon content in the metal. It is established that the most rational for conditions of oxygen-converter melting is the use of materials intended for use, which contain lime with cigarette butter 15 - 20%. The material is fed to the bath at the end of the oxidation period with a decrease in carbon content to 0.15-0.2% with a significant increase in the temperature of the liquid steel. For conditions of steel smelting in the chipboard, the cigarette can be 40 60%.