Electric arc furnace

Details Electric arc furnace Electric arc furnace

1975-09-17

1976-10-05

Envall, Jr., R. N.

F27D 160

Patent

active

039846172

ABSTRACT:
An electric arc furnace has its side wall lining protected against arc-flare by an external magnet forming a magnetic flux field on the inside of the lining where arc-flare protection is required, and a supply of ferro-magnetic particles are fed downwardly through this flux field for the purpose of forming a layer of the particles held against the lining. The particles are continuously fed to replace particles which, because of heating, become non-magnetic and fall. In this case, the magnet is an electromagnet having an iron core and solenoid windings which produce a more uniformly and widely spread layer of the particles on the side-wall lining's inside.

REFERENCES:
patent: 3619467 (1971-11-01), Goodman
patent: 3883677 (1975-05-01), Hanas et al.
patent: 3885082 (1975-05-01), Hanas

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