C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
39/104
C22B 9/05 (2006.01) B22D 1/00 (2006.01) F27D 1/08 (2006.01)
Patent
CA 1230479
Abstract A metallurgical gas plug for a metallurgical vessel consists of a gas-permeable shaped brick which can be installed in the wall or the bottom of the vessel and has directed porosity in an annular region of the shaped brick; a gas- tight metal encasing partially surrounding the shaped brick and comprising a metal jacket extending around the lateral circumferential area of the shaped brick and a metal cover for the outer face of the shaped brick; and a pipe for supplying gas to a central gas inlet of the metal cover. In order to obtain optimum use of the region that has directed porosity for gas passage, an annular collecting chamber is provided in front of the inlet of this region, the central gas inlet being joined to the annular collecting chamber via at least one joining channel. Preferably, several spiral-armed joining channels, arranged at regular circum- ferential intervals, are provided so that a circulating flow is generated in the annular collecting chamber, ensuring even pressure conditions.
467067
Radex Deutschland Aktiengesellschaft Fur Feuerfeste Erzeugnisse
Ridout & Maybee Llp
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