INNOVATION OF ROTARY FURNACES FOR GRANULAR MATERIALS HEAT TREATMENT

Abstract

The current rotary furnaces have very good application possibilities in materials processing of various granularities. Their main disadvantages are negative economic and ecological indexes. The rotary furnaces research was focused on the furnace operation improvement so as to obtain improved operating parameters. Based on the results of the simulation and operations in pilot conditions, the following six optimization measures were tested: charge preheater, self-regulating charge feeder, radial seal, controlled cooling of furnace shell, diffusion burner and sinter cooler. As the result of evaluation of individual measures, the fuel savings can be achieved. Applying the measures, the rotary furnace indexes will approach to other thermal apparatus while preserving or increasing their most significant index which is high furnace output.