Cupola furnace

Details Cupola furnace Cupola furnace

1976-05-12

1977-07-19

Dost, Gerald A.

Metallurgical apparatus

Means for treating ores or for extracting metals

By means applying heat to work, e.g., furnace

266166, C21B 714

Patent

active

040364798

ABSTRACT:
An improved cupola furnace which comprises, in combination, on the one hand at least one tap hole for the pig iron opening into the crucible level with the hearth, a passage for evacuating the slag and air-blowing tuyeres, on the other hand, a storage tank closed by a cover and permanently communicating, near its bottom, via the tap hole, with the crucible, finally a removal siphon permanently communicating with the tank via an opening which opens near its bottom and with the outside via an overflow sill, at least one pneumatic device being connected to the upper part of the tank and enabling this latter to be selectively placed under two different pressures.

REFERENCES:
patent: 691474 (1902-01-01), Lincoln
patent: 728727 (1903-05-01), Von Kerpely
patent: 1231349 (1917-06-01), Herreshoff
patent: 1357781 (1920-11-01), Koppers
patent: 3589699 (1971-06-01), Bogan

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