摘要:
A charging apparatus for an open hearth furnace includes a plurality of adjacent open topped boxes which are individually pivotally mounted on a support car. Each box has a trunnion mounted hydraulic cylinder associated therewith for individually pivoting the boxes to discharge a load of steel scrap or other solids into an open hearth furnace. The support car is mounted on tracks to enable positioning the charging boxes in alignment with the furnace charging doors.
摘要:
A refractory lined metallurgical vessel for converting molten ferrous metal to steel and having a removable refractory bottom insert provided with tuyeres for allowing injection of oxygen and other gases through the molten metal. The tuyeres extend through ball and socket joints in an insert bottom plate and voids in the refractory bottom which permit adjustment of the angle between the tuyeres and the vertical axis of the vessel. After the proper angle has been selected, the voids between the tuyeres and the bottom refractory lining are filled with refractory mortar. Such vessels may also include similarly adjustable tuyeres extending into the vessel side above the molten metal for directing oxygen or other gases onto the surface of the melt.
摘要:
A method and apparatus for directing the flow of material between a plurality of storage bins and metallurgical vessels each having a coupling pipe connected thereto. Each of a plurality of interconnected directional switches is coupled to at least one storage bin and vessel and including rotatably mounted pipe coupling sections for connecting alternate flow paths between various bins and vessels when in various alternate positions.
摘要:
The bottom handling apparatus is adapted for being mounted on a ladle car or the like and comprises a base on which a turntable is rotatably mounted. A lift frame is supported on jacks which are in turn supported on the turntable. A single motor drives the jacks through speed reducers and individual clutches.
摘要:
An existing basic oxygen type top-blown steel converter vessel is transformed into a bottom-blown type where gases and finely divided materials may be blown into the vessel through tuyeres in its side wall and in its bottom. The existing trunnion shafts on which the existing vessel is supported for tilting are bored at the installation site to provide a plurality of passageways for conducting finely divided materials, gases and cooling water to the various tuyeres and to the trunnion ring which supports the vessel, respectively. Special multipurpose rotary joints are used to connect the tiltable vessel to sources of the gases and finely divided materials.
摘要:
A METHOD AND APPARATUS FOR COOLING THE GAS EXHAUST SYSTEM OF METALLURGICAL VESSELS WHEREIN HEAT IS GENERATED DURING ONLY A PORTION OF THE METAL TREATMENT CYCLE AND INCLUDING FIRST AND SECOND COOLANT RESERVOIRS EACH HAVING A CAPACITY TO PROVIDE SUFFICIENT COOLING FLUID DURING PERIODS OF HEAT GENERATION TO COOL THE VESSEL EXHAUST SYSTEM, AND A HEAT EXCHANGER DISPOSED BETWEEN SAID RESERVOIRS AND HAVING SUFFICIENT CAPACITY TO TRANSFER THE AVERAGE AMOUNT OF HEAT GENERATED BY THE VESSEL DURING A METAL TREATMENT CYCLE.
摘要:
A vessel for converting molten ferrous metal to steel is pivotable about a horizontal axis and has bottom tuyeres which permit the blowing of oxygen and other gases upwardly through the molten metal. The tuyeres are arranged on a first metal plate attached to the vessel''s bottom refractory and the gas distribution system for coupling the tuyeres to a source of gas is coupled to a second plate for rapid attachment and detachment from the first plate.
摘要:
Two substantially similar vehicles are adapted for being separated to engage a load between them and for being connected together when returning without a load. Each vehicle has a plurality of wheeled trucks which support a bolster or equalizing beam. A beam-like body which engages the load extends over the bolster. Support means are interposed between the outboard end of the body and the midregion of the bolster. Support means include means for permitting yawing, rolling, pitching and straight line transverse movement of the load body with respect to the bolster. There are also jack means in the support means for raising and lowering the outboard end of the load body. A shift control is interposed between the load body and the bolster for controlling the angular relation between the bolster and load body.
摘要:
At least one trunnion shaft of a tiltable metallurgical vessel has a driven gear affixed thereto. A gear housing surrounds the driven gear and is journaled on the shaft. Several hydraulic motors are mounted on the gear housing. Pinions on the respective motor shafts engage directly with the driven gear. Rotation of the gear housing, due to reaction between the pinions and gear, is resisted with a torsion bar.
摘要:
A vessel for molten metal such as a steel converter vessel is suspended within a tiltable hollow ring with a plurality of diaphragms or cantilever beams which each have one end anchored inside of the ring and another end inside of the space surrounded by the ring. The said other ends make a tangential connection with the vessel which is within the ring. The anchored ends of the beams within the ring have openings for permitting circulation of cooling water through the ring. The beams are planar and stand edgewise with respect to the axis of the vessel and ring and the beam edges do not extend in an axial direction beyond the upper and lower faces of the ring.