Abstract: A converter comprising a container (2) defining a first axis (X); a support ring (3), coaxial to the container (2) and spaced therefrom, equipped with two diametrically opposite supporting pins (6), defining a second axis (Y) which is orthogonal to the first axis (X), adapted to allow the converter to be rotated about said second axis; suspension elements, connecting said container (2) to said support ring (3), restrained at a first end to the container (2) and at a second end to the support ring (3); in which said suspension elements comprise at least three first bars (7) arranged parallel to the first axis (X) and substantially equidistant from each other along said support ring; at least two second bars (8, 8?), each second bar (8, 8?) being orthogonal to said second axis (Y) and diametrically opposite with respect to the other second bar (8?, 8); at least one third bar (9) being arranged parallel to a first plane (X-Y) defined by said first axis (X) and second axis (Y); wherein all said bars are fixed-end

Abstract: The invention relates to a fastening system for tiltable metallurgical processing vessels, in particular converters, the processing vessel (1) being mounted in a carrier ring (2) connected to the jacket of the processing vessel by means of plate fin elements (11), each plate fin element consisting of a plate fin connected to the carrier ring (2) by means of a sheet metal connector (16) and a first fastening bracket (14) and connected to the jacket of the processing vessel by means of a further sheet metal connector (17) and a second fastening bracket (15). According to the invention, the sheet metal connector (16, 17) is clamped by a wedge (20) between the flanges (18, 18a and 19, 19a, respectively) of the fastening bracket (14 and 15, respectively) with zero clearance, said bracket in turn abutting a tab (22) welded to the flanges of the fastening bracket and bridging same. The wedge (20) is actively connected to the tab (22) by means of a bolted connection (21).

Abstract: Equipment for the treatment of loads or residues of non-ferrous metals and their alloys include a rotary furnace having a vessel with a sealed door. An electrode is introduced into the rotary furnace and is used to establish a free burning convective electric arc with the load introduced into the furnace or with the furnaces bottom wall. The equipment is assembled over a hinged base which allows elevating or lowering its rotation axis with respect to a horizontal plane.

Abstract: A cooling system for a basic oxygen furnace or an Argon Oxygen Decarburization converter having a metallurgical converter vessel supported in a trunnion ring. The cooling system comprises a number of cooling panels. The cooling panels are mounted or attached to the exterior surface of the trunnion ring and positioned between the outside surface of the vessel and the trunnion ring. A coolant liquid or vapour is pumped or circulated through the cooling panels. The cooling panels are detachable from the trunnion ring for replacement and/or repair without requiring disassembly of the trunnion ring or the metallurgical converter vessel.

Abstract: A method of, and apparatus for, recycling a metal by melting it to remove it from metal-containing scrap through the use of a tiltable, swivel rotary furnace, which is swiveled to a first station for receiving metal-containing scrap, tilted back and rotated while heating to melt the metal, swiveled to a second station where it is stopped and forward tilted to quickly pour off the molten metal into a holding apparatus. The furnace is swiveled to a third station where it is further forward tilted and rotated to discharge the residual scrap, and then leveled and swiveled to the first station while still hot to receive metal-containing scrap, thereby reducing the amount of energy required to reheat the furnace to melting temperature. The furnace comprises a hollow elongated drum having a tapered snout, a door closing the front opening, a power rotary drive to rotate the drum, which is mounted for tilting about a transverse axis, and for swiveling about a vertical axis, and a heater.

Abstract: A process and apparatus are disclosed for recovering a non-ferrous metal, preferably aluminum and aluminum alloys, in molten coherent form from a charge of material to be processed containing the metal. The charge is introduced into a sealable furnace which is then sealed. The charge is agitated. A control parameter indicative of conditions inside said furnace is monitored and compared to a pre-determined first condition for the parameter. A heat source is operated to heat the charge until the control parameter reaches the first condition. The operation of the heat source is then stopped. A controlled amount of oxidizing agent and an inert carrier is then introduced into the furnace. The control parameter is monitored and compared to a predetermined second condition for the parameter. The flow of the oxidizing agent and the carrier is controlled to maintain the control parameter at about the second condition. The molten metal is subsequently removed from the furnace.

Abstract: A metallurgical vessel has upper and lower brackets which engage a trunnion ring for support along inclined surfaces whose total vertical angle has a tangent equal to the growth of the vessel radially in the region of its said brackets to the elongation of that portion of the vessel between the brackets.

Abstract: A support is provided for a metallurgical vessel, in which paired tie rods are provided superimposed upon each other to absorb the stress resulting from thermal expansion and contraction in the support. By superimposing pairs of the tie rods upon each other and pre-stressing them, a substantial capacity is provided for absorbing built-up stresses in the support while requiring relatively less space for accommodating the tie rods. The paired compression heads and tie rods are positioned concentric to each other on the same axis.

Abstract: A method and apparatus for tilting a furnace supported by rolling rockers is disclosed. The apparatus includes at least one hydraulic cylinder connected to a spout side of the furnace, and at least one hydraulic cylinder connected to a back side of the furnace.

Abstract: Finely divided particulate material is discharged against the incandescent wall of a rotary furnace through a pipe extending into the open end of the furnace in a position where the material is out of the path of the flame projected into the furnace through the open end and out of the path of the out-flowing gases. The material is retained against the interior wall of the furnace by centrifugal force and, as the material melts, it collects in a pool at the inner end of the furnace. The entrainment of fine particles and their subsequent removal with the exhaust furnace gases is thereby substantially reduced, if not entirely eliminated.

Abstract: A metal-refining converter comprises an elongated vessel for containing a melt to be refined and which tilts so that it can be positioned upright or horizontal. This vessel has an upper end having a charging opening provided with a removable gas-tight cover and a lower end provided with a channel-type inductor, and the vessel has a closable tap hole in its side which is downward when the vessel is horizontal. The vessel is charged with the melt to be refined, via its charging opening. With the vessel upright, the vessel is provided with means for injecting refining material into the melt while it is heated by the inductor. After the refining period, the vessel is tilted to its horizontal position, the vessel having an internal contour such that a space is formed over the melt, the gas-tight cover being applied at that time. Non-oxidizing gas is injected into the vessel and with the inductor continuing to heat the melt, the latter is tapped via the tap hole.

Abstract: A converter 10 having horizontally exiting trunnion pins which are subject to side loading. A pair of bearings support the trunnion pins for rotation and a thrust bearing assembly is connected to the terminal end of one of the trunnion pins and is mounted independently of the pair of bearings. The thrust bearing is mounted for movement in a circular path about the axis of the one trunnion pin to permit misalignment thereof.