Device and furnace for discharging measured quantities of molten

Details Device and furnace for discharging measured quantities of molten Device and furnace for discharging measured quantities of molten

1983-03-16

1984-07-17

Tung, T.

Metallurgical apparatus

With control means responsive to sensed condition

With means responsive to condition of treated material

266 96, 266236, 222590, 222591, 222595, C21C 552, B22D 3902, B22D 3906, C21D 1100

Patent

active

044601638

ABSTRACT:
A holding or smelting furnace for discharging measured quantities of molten metal includes a furnace wall defining a furnace chamber adapted to contain molten metal having an upper free melt level, and at least one melt outlet channel extending from the furnace chamber through the furnace wall at a level below the free melt level. A sliding gate valve is mounted on the furnace wall at the outlet channel and is movable between a closed position blocking the outlet channel and an open position unblocking the outlet channel. Control structure maintains the free melt level at a constant level within the furnace chamber, and thereby maintains the hydrostatic pressure of the molten metal within the furnace chamber at a constant value during discharge of the molten metal. Regulating structure is operable independently of the operation of the control structure and moves the sliding gate valve between the closed and open positions thereof at a predetermined timed cycle.

REFERENCES:
patent: 2937789 (1960-05-01), Tama
patent: 3439759 (1969-04-01), Rouanet et al.
patent: 3441261 (1969-04-01), Sommer
patent: 3591052 (1971-07-01), Nef
patent: 3605863 (1971-09-01), King
patent: 3918613 (1975-11-01), Shapland
patent: 3971547 (1976-07-01), Fredrikson et al.
patent: 4268016 (1981-05-01), Eschner et al.

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