Industrial electric heating furnaces – Arc furnace device – Furnace body detail
Patent
1980-06-17
1982-04-06
Envall, Jr., Roy N.
Industrial electric heating furnaces
Arc furnace device
Furnace body detail
110331, 501124, F27D 102, F27D 110
Patent
active
043237185
ABSTRACT:
The invention relates to an arc furnace roof. The roof is comprised of a metal cover which is bolt-connected to the furnace shell. Secured to the lower side of the cover is a plurality of shackle hooks, each of said shackle hooks having an anchor bolt hooked therein. The metal cover has a first layer of insulating concrete applied to its lower side and a second layer of refractory concrete applied to the hard first layer of insulating concrete, the two layers of insulating and refractory concrete, respectively, embedding the shackle hooks and anchor bolts.
REFERENCES:
patent: 1978077 (1934-10-01), Doyle et al.
patent: 3429973 (1969-02-01), Carter et al.
patent: 3624733 (1971-11-01), Eadie
Buhring Otto
Dreessen Gerardus J. W.
Groeneveld Jacob W. H.
Queck Robert
Thome Heinrich
Envall Jr. Roy N.
Hoechst Aktiengesellschaft
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