NATURE OF ORE AS THE DECISIVE FACTOR IN THE TECHNOLOGY OF PELLETS PRODUCTION

A novel approach is proposed to the development of the technology of m anufacture and the selection of the optimal basicity of iron-ore pelle ts, which takes into consideration the mineral form of the silica whic h is present in the concentrate. The laws of strengthening, the temper ature-time parameters of roasting and the ranges of optimal basicity o f pellets prepared from magnetite ores of sedimentary quartzites and s karns are true for all pellets produced from ores of a similar genesis . This is a main advantage or the proposed approach which makes it pos sible to save material means on the development of the technology of p roduction of raw materials on putting new iron-ore deposits into opera tion.