Method of and apparatus for preheating and removing organic...

Details Method of and apparatus for preheating and removing organic... Method of and apparatus for preheating and removing organic...

C - Chemistry, Metallurgy

21

B

39/1, 53/346

C21B 15/00 (2006.01) C21B 5/02 (2006.01) C21C 5/52 (2006.01) C21C 5/56 (2006.01) C22B 1/00 (2006.01) C22B 7/00 (2006.01) F27B 7/34 (2006.01) F27B 7/42 (2006.01) F27D 13/00 (2006.01) F27D 17/00 (2006.01) C21C 5/30 (2006.01)

Patent

CA 2023414

- 1 - METHOD FOR PREHEATING SCRAP IRON BY PYROLYSIS OF RESINOUS RESIDUES CONTAINED THEREIN, WITH TOTAL RECOVERY OF THEIR ENERGY CONTENT AND IMPROVEMENT OF THE STEELMAKING CYCLE ABSTRACT 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.

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