Osterreichisch-amerikanische Magnesit Aktiengesellschaft

Radex Deutschland Aktiengesellschaft Fur Feuerfeste Erzeugnisse

Hans Hoffgen

Bernd Grabner

A device is provided for extracting a sheet-metal-encased gas-purge brick from a perforated brick or a perforated-brick sleeve simply, quickly and without causing any appreciable contamination. The device consists of a frame adapted to rest upon the exterior of the perforated brick, upon the perforated-brick sleeve, or upon the outer wall of a metallurgical vessel; a drawbar displaceable axially in the frame in relation to the metallurgical vessel and adapted to be set up in alignment with the centerline of the gas-purge brick; a device,provided on the drawbar, for coupling the end thereof to the gas-purge brick; and a driving means for displacing the drawbar in a direction away from the perforated brick. The coupling device consists of a coupling part seated upon the drawbar; a counter-coupling part secured to the gas-purge brick; and a coupling pin adapted to be passed through aligned holes in the two coupling parts.

Extracting device for a gas-purge brick

A scavenger for injecting gas into molten material where a refractory member fits within an opening in a refractory lining. The cold face of the scavenger fits within a recess of a base that includes a gas conduit in the form of a double spiral. The gas conduit in the base is in flow communication with the gas transmitting means in the gas scavenger.

Growing community of inventors

Hohr-Grenzhausen, Germany

Hans Hoffgen