SCRAP IRON PREHEATING METHOD BY RECOVERING ALL OF ENERGY OF RESINOUS RESIDUE CONTAINED IN SCRAP IRON AND BY THERMALLY DECOMPOSING SAID RESINOUS RESIDUE WHILE IMPROVING STEEL PRODUCING CYCLE

摘要

This method of preheating scrap iron mixed with plastic, rubber and resinous, ie organic, materials and intended for electric furnaces, in particular electric arc furnaces, is characterised by transforming the plastic, rubbery or resinous and like materials of organic nature present in the scrap iron, to advantageously eliminate them by a path able to produce thermal energy usable for preheating the scrap to be melted, said path consisting of pyrolysis in an environment fed both with the the scrap to be melted and with said organic materials, the whole being previously shredded.