Man Gutehoffnungshutte Aktiengesellschaft

Man Gutehoffnungshuette Gmbh

M.a.n. Maschinenfabrik Augsburg-nurnberg A.g.

Gutehoffnungshutte Sterkrade Aktiengesellschaft

Kabel- U. Metallwerke Gutehoffnungshutte Ag

Steinfurter Eisenwerk Gmbh

Bruno Kammerling

Rainer Schmidt

Bernhard Henneken

Horst Fischer

Axel Kubbutat

Eckhard-K Scholz

Hans Krause

Karl Spickermann

Hermann Bunemann

Urs-Peter Steiner

Wolfgang Schroder

Wolfgang Kowalski

Eckhard-Karl Scholz

Ingo Herzog

Franz Meier

Werner Rosker

A cooling element for shaft furnace walls including a metallic plate body with interior coolant-carrying tubes. The lower edge of the plate body includes a holding nose for refractory brickwork. The nose has at least one additional cooling tube. The cooling element according to the present invention may be assembled completely outside the furnace in a shop. The refractory brickwork consists of small bricks which are adhered or cemented to the plate body in concentric ring sections. The refractory bricks are advantageously provided with predetermined breaking notches and the layers of brick of the brickwork are provided with expansion joints. It is possible to use bricks with different thermal conductivities for the refractory brickwork.

Liquid-carrying cooling element for shaft furnaces

To absorb thermal expansions and relative movements, as well as to transmit torques, compensators, which are provided with an overtensioning device, are installed between the tuyere connections of a blast furnace and the hot-blast circulating duct. During the regular replacement of expendable parts of the tuyere connection, at least the elbow (4) must be removed as well, so that the intermediate pipe section (5) lined with refractory material will hang freely on the compensator (1). To achieve short replacement times, the compensator (1) is fixed according to the present invention by means of a locking device, and again disengaged on completion of the maintenance work. The locking device includes two flat bars (6), which are rigidly connected at the upper compensator flange (7). Threaded bolts (9), which extend into the flat bars (6) through openings (12), are fastened at the lower compensator flange (8). To fix the lower compensator flange (8), nuts (10) and lock nuts (11) are screwed onto the threaded rod (9) and pressed against the flat bars ( 6) in a frictionally engaged manner by tightening the lock nuts (11). As an alternative, locking of the compensator (1) may also be performed hydraulically. In this case, a mounting pressure cylinder is inserted into an opening of the compensator flange (8) and is pressed against the respective flat bar (6) by means of a hydraulic pump.

Locking device for the overextensioning of a pipeline compensator

The present invention pertains to a plumb bob device for determining the bed height of bulk material in a shaft furnace. The winding drum 1 for unwidning and rewinding a cable 5 or a chain with a plumb bob 6 suspended at its end is driven by a hydraulic motor 3. A displacement transducer 9 is driven by the shaft of the winding drum 1. The motor for driving the winding drum 1 is a so-called low-speed hydraulic motor 3. The displacement transducer 9 sends a signal associated with the actual measured depth to a pressure-proportional valve 10 directly, i.e., without an electrical control device. This valve presets a plumb bob holding pressure associated with the actual depth for the hydraulic motor 3.

Plumb bob device for determining the bed height of bulk material in a

In a throat stopper for shaft furnaces, in particular blast furnaces with two hoppers of which an upper hopper is rotatable through a drive device, the upper hopper is designed, by means of a stationary hood equipped with charging flap valves, as a sluice chamber to be closed pressureproof. For sealing the stationary hood relative to the rotatable upper hopper, there is disposed, at the hood, a peripheral flexible inflatable bellows. The bellows can be pressed against the wall of the upper hopper pneumatically or hydraulically. While material is being charged in the upper hopper, one of the charging valves is open and the bellows is pressureless. During, or shortly thereafter, the charging, the upper hopper is rotated. For during the lower hopper, the valves of the upper hopper are closed, bellows is inflated, and the upper hopper is hopper are closed, bellows is inflated, and the upper sluice chamber is pressurized.

Furnace charging throat construction

A device for changing tap runners in shaft furnaces includes tap runners which have linings subject to wear and therefore such runners must be repaired regularly. Transport of the runner requires a considerable crane capacity with correspondingly heavy building construction. The device according to the invention permits transport of the tap runner without a casting room crane. Instead, the tap runner is raised or lowered between the mill floor, or another level, and a tapping platform by means of hydraulically driven traction elements taking support on runner supports arranged at tapping platform level.

Apparatus for changing the level of tap runner of a shaft furnace

An improved arrangement for securing a plate-type cooler in metallurgical furnaces is disclosed. The cooler comprises a cast body including embedded cooling pipes provided with protective tubes which are run into the cooler body and secured to the outlets of the cooling pipes. At a first level, at least one of the protective tubes is designed as a fixed support and the other tubes at the same level are designed as horizontally displaceable supports to allow for a thermal expansion. At a vertically opposite level, at least one of the protective tubes is designed as a vertically displaceable support and the other tubes extending at the same level are designed as movable supports.

Arrangement for securing plate-type coolers in metallurgical furnaces

A copper or copper alloy ingot is forged or rolled into a plate; blind bores are deep-drilled into the plate from one of its narrow edges and plugged; inlet and outlet nipples for the ducts are provided on the rear surface; and the front surface of the plate is provided with grooves or short sleeves for holding a fireproof lining structure or material.

Cooling plate for furnaces

A cooling device for use with a refractory lining in a smelting plant, such as a blast furnace and particularly a shaft furnace, includes an inner refractory lining, an outer steel jacket, and a plate member located between them. Preferably, the plate member is cast and anchoring members are cast into each plate member and extend only from the plate member surface facing toward the steel jacket. The anchoring member secures the steel jacket and plate members together and also holds them in spaced relation. Various embodiments of anchoring members can be used. In one embodiment a blind bore is provided within the anchoring member and a thermocouple extends into the blind bore from the steel jacket for measuring the operating temperature of the plate member.

Growing community of inventors

Dinslaken, Germany

Bruno Kammerling