Metallurgical Slag Disintegration in Centrifugal Impact Crushing Machines
I. V. SHADRUNOVA1, O. E. GORLOVA2, E. V. KOLODEZHNAYA3, I. M. KUTLUBAEV2
1Institute for Problems of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, Kryukovskii tupik 4, Moscow, 111020 Russia
2Nosov Magnitogorsk State Technical University, pr. Lenina 38, Magnitogorsk, 455000 Russia
3Ural-Omega, pr. Lenina 89, Bld. 7, Magnitogorsk, 455037 Russia
Keywords: Pretreatment, disintegration, crushing, centrifugal-impact crusher, metallurgical slag, mining waste, physico-mechanical properties
Abstract
In focus are issues of metallurgical slag disintegration by centrifugal-impact crushers. The article shows the model of breaking a piece of material in the centrifugal-impact crusher chamber. The scheme of force interaction between slag particles and crusher chamber is developed considering spread inertia load. It is found how structural parameters of crushing machines are connected with the process properties of slag, and the velocity and physico-mechanical properties of a piece of slag are related. The authors give technological recommendations on adapting centrifugal-impact crushing to mining waste pretreatment flowcharts.
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