摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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. In order to considerably increase the service life of the blowing lance and to avoid leakages in the front plate, at least one coolant secondary channel is provided in addition to the at least one connecting channel, which, upon branching off a partial stream of the coolant flowing to the connecting channel, diverts this partial stream into a flow direction deviating from the flow direction in the connecting channel and whose mouth is directed directly towards the center of the front plate.