ALGORITHM OF CALCULATION OF SULFIDE NICKEL CONCENTRATE OXIDIZING ROASTING IN FLUIDIZED-BED FURNACE AND OPTIMIZING

Abstract

An algorithm has been developed and a computer program on its ground for calculation of parameters of nickel sulfide concentrate oxidizing roasting in fluidized bed furnaces has been designed. As a result of implementation of computer planning experiment, an adequate mathematical model of the excess-concentrate coefficient (at constant air blasting) dependence of fluidized bed temperature and specific furnace capacity, excess-blasting coefficient, oxygen concentration in air blasting, recirculated dust content in charge, and concentrate humidity is obtained. High forecasting properties of the model are shown. Under the conditions of the accepted restrictions on independent variables, their ranking by the efficiency on roasting values is performed.