Abstract
As a result of manufacturing processes, steelworks plants produce large amounts of waste materials. Currently in modern steelworks the most of waste is utilized in the same steelworks and passed to external customers or it is reused as a feed for other technological processes. Fine-grained metallurgical waste materials are used to production of granules because of the high contents of iron and other valuable elements. Granulation of iron-bearing waste materials increases permeability of blend and performance of the sinter strand. Dosing of material in the form of granules to an average sinter mix may be accomplished in a more controlled manner than is the case for bulk material. Due to recycling carried out by adding granulated wastes to blast furnace charge or to sintering process the cost of production of steel is reduced. This procedure allows metallurgical sector on the delivery of measurable economic, technological and environmental benefits. In this work the chemical composition, grain size and the possibility of using fine-grained iron-bearing wastes are presented.
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