F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
39/104
F27D 3/16 (2006.01) B22D 1/00 (2006.01)
Patent
CA 1204934
ABSTRACT A device for introducing gases into metallurgical vessels comprising a refractory brick of low gas permeability which is surrounded along its length by a metal shell shaped to leave one end of the brick exposed and at the other end to define a gas collecting space which communicates with a gas inlet. The device incorporates refractory ceramic fibres, e.g. in the form of a mat, extending along its length and positioned either around its periphery and/or through its interior which afford one or more gas passages communicating between the gas space and the free end of the brick. In use, the device is removably located in the refractory lining of a metallurgical vessel by means of mortar with its exposed end directed towards the interior of the vessel and the gas connection accessible from the exterior of the vessel.
422231
Hohberg Alfried
Muschner Udo
Didier-Werke A.g.
Fetherstonhaugh & Co.
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