Abstract: In a method of cooling a hot surface, a liquid cooling medium is atomized by a plurality of nozzles in a hollow space surrounding the surface and open towards the atmosphere. In order to ensure uniform continuous, yet just sufficient, cooling of the hot surface, with the cooling effecting with a constant temperature as possible over an extended period of time while avoiding changing thermal expansions of the hot surface, the liquid cooling medium is continuously atomized by means of unary nozzles to a fine mist having a droplet size ranging between 4 and 60 .mu.m. The mist leaves the unary nozzles at a low speed and is moved along the hot surface within the hollow space surrounding the hot surface under utilization of the natural thermal current in the hollow space.

Abstract: A blowing lance to be used for the treatment of metallurgical melts includes a lance head having several expansion tuyeres directed to the bath level of the melt and penetrating a front plate of the lance head. They depart from at least one lance channel, which is peripherally surrounded by a supply channel and a return channel for a cooling medium. The supply channel is separated from the return channel by a flow deflection piece arranged above the front plate and penetrated by at least one connecting channel connecting the supply and return channels and provided for the cooling medium.

Abstract: An arrangement for the installation or removal of a mouth ring comprised of mouth-ring segments and provided on the mouth of a tiltable metallurgical vessel. In order to simply and quickly install and remove a mouth ring, even if the converter is within a closed chamber and difficult to accede, a car is provided which is displaceable below the metallurgical vessel when tilted in the upside-down position. The car is provided with a platform that can be lifted and lowered by a lifting device and includes at least one support for a mouth-ring segment, which is displaceable and pivotable in the plane of the platform.

Abstract: In a tiltable converter arrangement with a carrying ring surrounding the converter vessel at a distance and having two carrying trunnions, the converter vessel is movably connected with the carrying ring by articulately connected brackets. The converter vessel is mounted in the carrying ring by means of three of these brackets that are inclined towards the longitudinal axis of the converter vessel and whose joints are each mounted to the converter vessel and to the carrying ring. The three brackets are pivotable in the plane laid through their longitudinal or central axes and the longitudinal axis of the converter vessel, which plane is at a right angle to the axis of the carrying trunnions.

Abstract: A tiltable converter vessel is supported on a carrying body arranged about its shell by means of lug pairs accommodating bearing forces, the lugs of each lug pair being arranged opposite each other on both sides of the carrying body. At least one lug of each lug pair is supported on the carrying body by at least one piston-cylinder unit whose piston is hydraulically adjustable in the longitudinal direction of the converter vessel. At least one further piston-cylinder unit is arranged parallel to the extension of the carrying ring.

Abstract: An arrangement for closing the tap hole of a metallurgical vessel designed for separating metal and slag, includes a closure body which is insertable into the tap hole so as to leave free an annular gap relative to the tap hole wall. The closure body contains a compressed-gas conduit and has an outer jacket tapering towards the mouth of the compressed-gas conduit. In order to ensure the maintenance of an annular gap of constant size, and thus the original diameter of the tap hole, the tap hole is set off in step-like manner by two parts so as to widen outwardly. The outer tap hole part has a larger diameter than that the inner part, which is delimited by the lining of the metallurgical vessel. The outer part is formed by a hollow body whose inner ring wall surrounds the outer jacket of the closure body peripherally at a radial distance. The hollow body also has a cavity into which at least one supply and one discharge conduit for a coolant enter.

Abstract: A converter bottom fastening arrangement to be used in a converter construction with a removable converter bottom fastened to the converter jacket, or a supporting construction connected therewith, includes a plurality of peripherally arranged rocker-shaped clamping levers which are displaceable into and out of an engagement position with the converter bottom. The outer ends of the levers facing the converter jacket are supported with respect to the converter jacket or the supporting construction by means of bracing devices. Guide elements are provided on the bracing devices and a curved guideway is provided on the converter by which the bracing devices are guided between a vertical bracing position and a released position along the curved guideway.

Abstract: A metallurgical vessel cooling system with cooling chambers provided on the wall of the vessel is arranged so that the cooling chambers can be quickly emptied of the cooling water by connecting the chambers to a pressure gas line. This system is particularly useful for one or more converters with a converter hood having cooling chambers extending in the generatrix direction and connected to horizontally extending coolant passages. These passages are in turn connected to a coolant supply system by means of coolant supply and drain lines. The supply or drain line contains supervisor or signalling devices for checking the pressure and/or temperature and/or amount of coolant. These signalling devices, in the case of a deviation from a predetermined value, actuate controls for separating the supply and drain means from the coolant supply system and connecting one of these conduit means to the pressure gas line.

Abstract: A converter bottom-fastening mechanism to be used in a converter construction with a removable converter bottom, a converter jacket and a supporting construction connected to the converter jacket. The bottom-fastening mechanism includes a plurality of rocker-like clamping levers peripherally arranged about the converter bottom and fastened to the converter jacket or to the supporting construction. The levers are axially movable into and out of engagement with the converter bottom. Bracing devices are provided to support the ends of the clamping levers facing the converter jacket with respect to the converter jacket or the supporting construction.

Abstract: A tiltable-converter supporting mechanism with drawing hooks which engage with bearing bushing bolting pieces and are actuated by pressure medium cylinder means has self-locking bracing means holding the engaging drawing hooks in a locked position.

Abstract: A converter with a converter hood provided with a plurality of cooling channels, wherein always one single reflux tube is allocated to a plurality of cooling channels and connects them with an upper collector conduit section and the lower distributor conduit section following thereupon; the cooling channels have smaller cross-sections than the reflux tube allocated thereto, and thus the converter hood is provided with an uneven surface.

Abstract: The invention relates to a metallurgical vessel, in particular to a converter, which in zones of heavy thermal wear, particularly between the carrying ring and the converter mouth, is provided with tube spirals flown through by a coolant. The tube spirals comprise open profiles or tube halves of semicircular cross section welded to the jacket of the metallurgical vessel. At one end the tube spirals are connected to a coolant collector and at the other end to a coolant distributor. The tube spirals have the form of a "U", wherein the tubes forming the legs of the U are arranged along the generatrix of the converter jacket and the leg ends of one tube spiral are connected with the leg ends of the following tube spiral by means of connecting conduits.