Electric furnace arrangement

Details Electric furnace arrangement Electric furnace arrangement

1988-05-12

1989-06-20

Envall, Jr., Roy N.

Industrial electric heating furnaces

Arc furnace device

Furnace body detail

373 81, H05B 702

Patent

active

048415421

ABSTRACT:
An electric furnace includes a furnace vessel arranged on a furnace platform and covered by a furnace lid liftable and lowerable by a lid lifting mechanism and pivotable from a position above the furnace vessel into a position lateral of the furnace vessel, and back, by a lid pivoting mechanism. A lid supporting framework pivotably mounted lateral of the furnace vessel and including at least one lid bracket is provided for lifting, lowering and pivoting the furnace lid. In order that the high-current cables are only slightly twisted when pivoting the furnace lid, despite the pivot axis for the furnace lid being arranged as close to the furnace vessel as possible, the lid supporting framework is pivotably connected with the furnace platform by an oscillating crank hinged to it. The lid supporting framework, under formation of a coupler, either is hinged to the furnace platform by means of a further oscillating crank under formation of a four-bar linkage or is guided with by one point along a guide arranged on the furnace platform under formation of a thrust crank.

REFERENCES:
patent: 1818239 (1931-08-01), Moore
patent: 2529319 (1950-11-01), Thys

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