Mechanism of Generation of Peak Load on Under-Bin Feeders at Processing Plants
A. A. KRAMADZHYAN, E. P. RUSIN, S. B. STAZHEVSKY, G. N. KHAN
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: раздробленная руда, бункер, напольный склад, подбункерный узел, пластинчатый питатель, вертикальные перегородки, пиковая нагрузка, ширина зоны течения, дилатансия, broken ore, bin, ground-level storage, under-bin discharge unit, plate feeder, vertical division walls, peak load, flow zone width, dilatancy
Abstract
The authors use physical and DEM modeling to analyze stresses and strains in broken ore discharged from accumulating bins using plate feeder. It is substantiated that the determinant of the peak load on the feeder and the discharge unit is dilatancy. It is shown that the absolute value of the peak load is conditioned by physico-mechanical characteristics of discharged ore, structural design of discharge unit and deformation constraint. The article demonstrates possibility of upgrading one of conventional schemes of discharge unit and shows prospects for new designs.
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