Industrial electric heating furnaces – Arc furnace device – Electrode support
Patent
1993-12-23
1995-04-11
Reynolds, Bruce A.
Industrial electric heating furnaces
Arc furnace device
Electrode support
373 94, H05B 712
Patent
active
054065801
ABSTRACT:
An electrode seal for arc furnaces, particularly arc furnaces for steel making, has a first element in the form of a water cooled copper sleeve lining an aperture in the furnace roof for passage of an electrode, the sleeve having an upper surface engaged by a lower surface of a horizontally slidable seal ring formed by beryllium copper water cooled segments which abut end-to-end to form a close fitting collar around the electrode having an internal diameter the same as the external diameter of the electrode. The segments are spring loaded radially against each other and so as to center them over the aperture, so as to accommodate any minor oversize or irregularities of the electrode, as well as damping horizontal movement of the latter, and are also spring-urged downwardly against the sleeve. Water passages in the segments and in the sleeve are connected in series, and water piping and spring loading apparatus are arranged to leave part of the periphery of the seal free, allowing close grouping of electrodes.
REFERENCES:
patent: 1690795 (1928-11-01), Sagramoso
patent: 1732431 (1929-10-01), Bruggmann
patent: 2979550 (1961-04-01), Sherman
patent: 3683095 (1972-08-01), Salmin et al.
patent: 3697660 (1972-10-01), Frolov et al.
patent: 3709506 (1973-01-01), Beerman
patent: 3835233 (1974-09-01), Prenn
patent: 4027095 (1977-05-01), Kishida et al.
patent: 4295001 (1981-10-01), Britton
patent: 4306726 (1981-12-01), Lefebvre
patent: 4347400 (1982-08-01), Lamarque
patent: 4442526 (1984-04-01), Rappinger et al.
patent: 4457002 (1984-06-01), Mathgen et al.
patent: 4759032 (1988-07-01), Willis
"Preventing EAF Fume and Dust Escape", Cywinski, Steel Times International, Nov. 1992.
Hatch Associates Ltd.
Hoang Tu
Reynolds Bruce A.
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