The aim of the presented research was to experimentally evaluate the influence of coarse-grained sinter added to the sintering strands in order to increase productivity and decrease the economic demandingness of the sintering process. The research was carried out in a selected metallurgical enterprise in the Czech Republic where the share of output materials of the sintering process at different input proportions of coarse-grained sinter was measured during one year. Within the course of this experiment, productivity of the sintering process increased by 1.35%. The article mainly discusses the effect of added coarse-grained sinter on the overall cost of the sintering process as well as on the quality of the final product.Keywords: Sintering, coarse-grained sinter, agglomeration
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