PERFECTION OF METHODOLOGY OF DEEP PROCESSING OF WASTES STEEL-SMELTING PRODUCTION

PERFECTION OF METHODOLOGY OF DEEP PROCESSING OF WASTES STEEL-SMELTING PRODUCTION

© Dil’din A.N., PhD; Trofimov E.A., PhD;Chumanov I.V., PhD, prof

456200, Russia, Federal State-Funded Educational Institution of Higher Professional Education SUSU, Zlatoust, 456209 Russia, andildin@mail.ru, zlat-susu@yandex.ru

Abstract. The results of thermodynamics design of process of high temperature renewal of steel-smelting slags, and also results of plenty of laboratory experiments, were presented. Research allowed to define the row of terms implementation of that will assist creation of technologies of the deep processing of dumps of slags such.

Keywords: thermodynamics analysis; steel-smelting slags; high-temperature renewal; fusion

1. Introduction.

Application of dump slags of steel-smelting and domain production is traditional direction of using for making of building materials and wares. However the charts used presently, as a rule, allow only partly to decide the problem of utilization of slag dumps [1-4].

Utilization of slag can be organized so that as the result to get building materials and metal suitable for the further processing and use in the last years.

Processing of dump slags of steel-smelting production must include the stage of high temperature renewal of substance with the purpose of extraction of metallic constituent. Efficiency of the stage of renewal depends on temperature terms and activity of the components determined by composition of slag and brought in additions [5-7].

The main problems are:

1) Determination of optimal temperature condition of process liquid-phase renewal;

2) Composition and sequence of procedures of preparation slag material to high temperature renewal;

Researches of process of extraction from the oxide constituent of dump slags of iron and row of alloying elements (Mn, Cr, V, Ti etc.) [8-10] allow to suppose that before realization of the liquid-phase stage of process of renewal realization of process of solid-phase renewal of the preliminary enriched constituent of slags can be useful. According to some data this variant is the less energy-expense as compared to the processes of liquid-phase renewal of all volume slag without preliminary restoration procedures. At the same time, the analysis of slag substance not entering the liquid-phase stage demonstrates considerable maintenance of the unextracted iron.

Effect of process parameters on the results have been studied in order to create the most effective metal recovery circuit slag’s component in the present study.

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