Method of operating a smelting unit and smelting unit for that m

Details Method of operating a smelting unit and smelting unit for that m Method of operating a smelting unit and smelting unit for that m

1989-10-26

1992-05-26

Reynolds, Bruce A.

Industrial electric heating furnaces

Arc furnace device

Charging or discharging

373 2, 373 18, 373 63, 373 81, F27D 1300

Patent

active

051174383

ABSTRACT:
In a smelting unit comprising an arc furnace and at least one shaft-like charging material preheater which is arranged laterally on the furnace vessel of the arc furnace and the interior of which is connected in a region adjoining its bottom to the interior of the furnace vessel by way of a connecting zone, and in addition burners open in the lower region of the charging material preheater, in a sump mode of operation after the tapping step, of the amount of charging material which is required for the next bath of molten material, a part thereof is charged directly into the furnace vessel in order to reduce the smelting time. That part of the charging material is preheated in a preheating chamber which is connected downstream of the charging material preheater.

REFERENCES:
patent: 3441651 (1969-04-01), Vieno et al.
patent: 4385889 (1983-05-01), Yasukawa
patent: 4617673 (1986-10-01), Fuchs et al.
patent: 4827486 (1989-05-01), Brotzmann et al.

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