Man Gutehoffnungshutte Aktiengesellschaft

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

Steinfurter Eisenwerk Gmbh

Rainer Schmidt

Bruno Kammerling

Helmut David

J Ernst Malik

Ernst Malik

Heinz Haacker

Franz Meier

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

A flow target plate arrangement for the fluidizing medium of a horizontal fluidized-bed reactor, consisting essentially of the fluidized medium supply lines, the collectors, and the flow admission tubes, the flow target plate is mounted exclusively at the passage of the central fluidizing medium supply line (1) in the pipe socket (7) of the pressure tank (6). Two collectors (2), to which flow admission tubes (3) are connected on both sides in the longitudinal direction of the pressure tank (6), extend from the fluidizing medium supply lines (1) according to the present invention, in the circumferential direction of the pressure tank (6). The other ends of the flow admission tubes (3) rest on at least one crossbeam (5). The crossbeams (5) are held by longitudinal beams (4), which are connected to the supply line (1).

Mounting arrangement of a flow target plate of a fluidized-bed reactor

A heat exchanger arrranged in a horizontally positioned container for carrying extremely hot gaseous or vapor media, a heat exchanger unit including a bank of tubes defined by tube walls, an inner port, a collector connected to the inlet port and connected to the tubes, first and second outlet ports, first and second outlet port ocllectors each outlet port collector being connected to the outlet ports and a bracket suspension connected to passages of the container for suspendedly supporting each of the inlet port and the outlet ports. The inlet and outlet ports each have a central axis, each central axis passing through a center of gravity of the portion of the heat exchanger unit connected to the associated port. The each of the heat exchanger units includes, the bank of tubes formed of tube walls, inlet ports being connected to the collector and the outlet ports being connected to each of the first and second outlet collectors.

Force free suspension of heat exchange bundles with high temperature

A hot pipeline is welded to a flange which is supported by brackets connected to a nozzle. The pipeline with a flange can expand freely radially. Welded to the other end of the flange is a pipe, which can withstand an axial temperature gradient between a temperature T.sub.1 at the pipeline and flange, and a temperature t.sub.2 at a compensator and the nozzle. The axial expansion of pipe is accommodated by the compensator, which is welded to the pipe and at its other end to the nozzle. The pipeline, the flange, the pipe and the compensator are subject to the difference between pressure p.sub.2 in the vessel and the pressure p.sub.1 in the pipeline.

Seal for a vessel connection of a hot pipeline

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.

Growing community of inventors

Oberhausen, Germany

Rainer Schmidt