Apparatus for preheating and removing organic materials from scr

Details Apparatus for preheating and removing organic materials from scr Apparatus for preheating and removing organic materials from scr

1991-05-28

1993-06-22

Andrews, Melvyn J.

Metallurgical apparatus

With control means responsive to sensed condition

With analyzer or computation means

266 83, 266 87, 266 89, 266156, 266157, 266205, 266901, C21D 1100

Patent

active

052215121

ABSTRACT:
This method of preheating scrap iron mixed with plastic, rubber and resinous, i.e. organic, materials and intended for electric furnaces, in particular electric arc furnaces, is characterized by transforming the plastic, rubbery or resinous and like materials or 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.

REFERENCES:
patent: 2943930 (1960-07-01), Proler
patent: 4264060 (1981-04-01), Twyman
patent: 4498523 (1985-02-01), Bowman et al.
patent: 4548651 (1985-10-01), Ramsey
patent: 4784603 (1988-11-01), Robak, Jr. et al.
patent: 4889556 (1989-12-01), Dighe
patent: 5059116 (1991-10-01), Gillespie et al.

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