Morozenko O. Physico-chemical analysis of processes of restitution and heat consumption of builders and mix materials in manufacture of manganous ferroalloys on purpose of energy conservation.

The dissertation is devoted to questions of energy-saving at smelting of ferroalloys and di-rected on working out of makeups of mix materials with low-heat capacity the use of which saves warmth, the electric power and material resources by their manufacture. In work the theoretical es-timation of possibility of use of data on thermal properties is executed at the decision of non-stationary problems of heat conductivity, results of exploration of enthalpy, a thermal capacity and factor of heat conductivity of 75 various materials, 38 of which - new, are resulted. Except this, mix materials of 28 makeups, from which 12 - experimental, are investigated. Explorations are executed on installation ОТSМ-1 on a method of balance of warmth in the sample with application of a simplex-trellised of planning for exploration of industrial mix materials of a reefficient and com-modity silicon manganese in which result the compromise-optimum charge makeup of a reefficient silicon manganese is found, diagrammes the "makeup-property" are constructed, allowing to predict thermal properties of mix materials of a reefficient and commodity silicon manganese, and also to choose makeups of mix materials with set of thermal properties. Components of mix materials: oxide and carbonaseous manganous concentrates and sinters of various grades, buhrs, quartzite, little-phosphide slag, coke, a silicon manganese, high-basic manganous sinters, and also production wastes in a kind of dust, slurry and briquettes from them - are investigated. Following mix materials are investigated: ferrosilicon, little-phosphide slag, a reef-ficient and commodity silicon manganese, medium- and a high-carbon ferromanganese with new materials and additives of a waste own and other manufactures. Recommendations for the choice of mix materials with low thermal capacity from the point of view of reduction of power expenses at smelting of manganous ferroalloys and conformity of ready product to standard requirements in the conditions of the ferroalloy furnace are developed, that leads to considerable economy of power re-sources and a coke rate on restoration.