Method and apparatus for removal of impure gases at time of scra

Details Method and apparatus for removal of impure gases at time of scra Method and apparatus for removal of impure gases at time of scra

1983-11-14

1986-09-09

Envall, Jr., Roy N.

Industrial electric heating furnaces

Arc furnace device

Charging or discharging

373 9, 432179, F27D 1300

Patent

active

046113398

ABSTRACT:
A method of preheating scrap metal with impure gases discharging from a metallurgical vessel includes the steps of conducting a first portion of the gases to a container of scrap metal, contacting the scrap metal with the gases for preheating the same whereby additional impurities are generated, withdrawing the impure gases after contact with the scrap metal and mixing the same with a second portion of impure gases from the metallurgical vessel, thermally cracking the mixture in a combustion chamber to remove impurities and thereafter removing particular matter from the gases prior to the discharge to the atmosphere.

REFERENCES:
patent: 4099019 (1978-07-01), Horibe et al.
patent: 4156102 (1979-05-01), Mainot
patent: 4242532 (1980-12-01), Squibbs
patent: 4437186 (1984-03-01), Inai

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