Slag Disintegration Selectivity
I. V. SHADRUNOVA1, E. G. OZHOGINA2, E. V. KOLODEZHNAYA3, O. E. GORLOVA4
1Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, Kryukovskii tupik 4, Moscow, 111020 Russia
2N.M. Fedorovsky All-Russian Research Institute of Mineral Resources, Staromonetnyi per. 31, Moscow, 119017 Russia
3Ural-Omega LLC, pr. Lenina 89, Magnitogorsk, 455037 Russia
4G.I. Nosov Magnitogorsk State Technical University, pr. Lenina 38, Magnitogorsk, 455000 Russia
Keywords: slag, ferrous metal industry, nonferrous metal industry, phase composition, physico-mechanical properties, selective destruction, disintegration, centrifugal impact crushing
Abstract
The articles considers experimental research findings on phase composition of ferrous and nonferrous metal industry slag, morphological structure and physico-mechanical properties of individual phases of slag with the aim to evaluate selectivity of their disclosure along intergrowth boundaries in impact crushing machines. The authors validate disintegration selectivity criterion for slag treatment in centrifugal impact crushers in the form of the ratio of microhardnesses of the slag phases.
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