Slag control method and apparatus

Metallurgical apparatus – Process – Plugging or tapping

Patent

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Details

266287, 266231, 266236, C21B 304

Patent

active

054721733

ABSTRACT:
A method and apparatus are provided for separating molten metal and slag from a rotating furnace. The apparatus includes a vessel having a reservoir which is positioned to receive a free-falling flow of molten metal and slag as it exits a tap hole in the furnace. The reservoir has a predetermined flow path therethrough, a molten metal outlet, a slag opening and a drain hole. The flow path includes a first portion having an open top for receiving the flow of molten metal and slag. The first portion is configured to eliminate turbulence caused by the free-falling flow of molten metal and slag into the reservoir and to permit separation of the molten metal from the slag wherein the slag floats on top of the molten metal. The molten metal is collected from the metal outlet for further processing and the slag is collected for disposal. In order to drain any residual molten metal and slag from the reservoir, a lifting and tilting mechanism is provided to position the apparatus so that the drain hole can be opened for discharge into a desired container.

REFERENCES:
patent: 1690748 (1928-11-01), Moyer
patent: 5173243 (1992-12-01), Laszlo
patent: 5173244 (1992-12-01), Laszlo
patent: 5240231 (1993-08-01), Laszlo
Laszlo et al. "A Device To Separate Slag From Liquid Metal" Article Presented at the Meeting of the American Institute of Metallurgical Engineers, Nov. 1993, pp. 1-7.

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