Device for sealing a lance in an opening for introduction of the

Details Device for sealing a lance in an opening for introduction of the Device for sealing a lance in an opening for introduction of the

1997-09-15

1999-07-27

Kastler, Scott

Metallurgical apparatus

Means for melting or vaporizing metal or treating liquefied...

By means introducing treating material

266265, 266269, 266270, C21C 532

Patent

active

059286032

ABSTRACT:
A device for sealing a lance (12) in an opening in a container under pressure, in particular a shaft furnace, is described. The device comprises a first casing (46) with an end wall on the shaft furnace side and on the environment side, which are each provided axially with an opening for a lance (12), and a sealing element (14), which is arranged in the first casing (46). The sealing element (14) comprises at least one packing (50) and at least one axially movable annular piston (52), which are arranged coaxially with an axis (24) of the device, the packing (50) being arranged between the piston (52) and one of the end walls of the first casing (46) in the actuating direction of the piston (52). The packing (50) is pressed axially against one of the end walls of the casing (46) by actuation of the piston (52), the packing (50) extending radially and being laid around the lance (12) to form a seal.

REFERENCES:
patent: 2273129 (1942-02-01), Messinger
patent: 3434728 (1969-03-01), Soldato
patent: 4465265 (1984-08-01), Kryczun et al.
patent: 4908179 (1990-03-01), Brookins
patent: 4911414 (1990-03-01), Bates et al.
patent: 5328157 (1994-07-01), Mantey
patent: 5462260 (1995-10-01), Lonardi et al.
International Preliminary Examination Report dated Mar. 11, 1997 (Form PCT/IPEA/409) in German.

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