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Pennsylvania Engineering Corporation Patents
Assignee:
Pennsylvania Engineering Corporation
Address:
Pittsburgh, PA
No. of patents:
57
Patents:


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Patent Number Title Of Patent Date Issued
4653064 Gas collector for metallurgical vessels March 24, 1987
A pollution control system for electric arc furnaces includes fume collectors disposed at one side and above the furnace and pairs of blower nozzles mounted on an overhead crane used to deliver feed materials to the furnace. One nozzle of each pair is adjustable in a vertical plane and t
4646315 Arc furnace burner control method and apparatus February 24, 1987
An electric arc furnace having at least one electrode and a burner and first and second supply systems for respectively supplying an oxygen containing gas and fuel to the burner. An exhaust gas conduit is connected to the furnace and includes a first damper for controlling the flow rate
4612043 Steel making method September 16, 1986
A method of making steel having low levels of carbon, nitrogen, phosphorous and oxygen comprises the steps of vacuum reladling a ladle of low phosphorous steel for reducing carbon levels and separating the metal from a highly oxidizing slag, blowing oxygen into the metal contained in a
4611339 Method and apparatus for removal of impure gases at time of scrap preheating September 9, 1986
A method of preheating scrap metal with impure gases discharging from a metallurgical vessel includes the steps of conducting a first portion of the gases to a container of scrap metal, contacting the scrap metal with the gases for preheating the same whereby additional impurities are
4575856 Iron free self baking electrode March 11, 1986
An iron free self baking electrode comprises an outer metallic shell, a center core formed of a graphite or prebaked carbon material spaced from the shell and a quantity of a carbonaceous paste which cures into a solid electrode and bonds to the graphite or prebaked carbon core as the co
4569057 Material feed system for smelting furnaces February 4, 1986
A feed system for a smelting furnace having a plurality of feed chutes arranged in a spaced apart, circular array. The feed system includes a circular conveyor mounted adjacent the furnace and concentrically with the feed chutes. The conveyor also has a gap therein which permits the
4501599 Method and apparatus for cleaning waste gases from aluminum production facilities February 26, 1985
A system for removing hydrogen fluoride, finely divided solids and hydrocarbons from aluminum production process emissions includes a vertical scrubbing chamber of constant cross section for receiving the emissions, and an injector disposed axially within the scrubbing chamber for in
4497656 Steel making method February 5, 1985
A method of producing steel from ferrous hot metal containing carbon includes the steps of delivering oxygen and a surrounding sheath of hydrocarbon shielding fluid to the metal and beneath its surface to elevate the temperature to at least 1350.degree. C. Iron material taken from th
4492567 Method of removal of impure gases at the time of scrap preheating, and equipment for use of same January 8, 1985
A method and apparatus for preheating scrap metal within pure gases discharged from a metallurgical vessel. The method comprises the steps of burning the gases in a combustion chamber to remove impurities therefrom, conducting a first portion of the combustion products to a container of
4485841 Pollution control device December 4, 1984
A damper assembly for use with the inlet duct of a pollution control system includes a plurality of vanes which are pivotally mounted for movement between an open position and a closed position wherein the vanes coact to close the duct. Each vane is pivotally mounted at one end on a clos
4483709 Steel production method November 20, 1984
A metallurgical vessel having an energy source and in which molten metal is contained for processing. A tuyere system is provided below the level of molten metal to permit the injection of gases, fluxes, ores, alloying additions and other materials to convert the molten metal to steel.
4449701 Tuyere for the injection of gases into a metallurgical vessel May 22, 1984
A tuyere for use in a metallurgical vessel comprising a first pipe adapted to be affixed to the wall of a metallurgical vessel and having a first end extending through the refractory lining of the vessel and a second end extending outwardly therefrom. A gas inlet member is affixed to the
4436291 Metallurgical vessel suspension system March 13, 1984
A molten metal processing vessel is supported on a trunnion support by a plurality of upper and lower link members each having a pair of legs. One pair of link member legs are coupled to and are disposed between three hinge members affixed to the vessel. The other legs of the upper membe
4428564 Metallurgical vessel January 31, 1984
A metallurgical vessel includes a plurality of tuyeres for respectively delivering process materials to molten metal contained within the vessel. A first plurality of axial passages are provided in at least one vessel trunnion pin for conducting fluids to and from the vessel and a second
4426069 Mettalurgical vessel suspension system January 17, 1984
A molten metal processing vessel is supported on a trunnion ring by a plurality of triangular members and adjustable links. Each triangular member is pivotally connected to the vessel to a clamp ring which engages the upper trunnion ring flange. The links are pivotally connected to the
4410166 Gas collector for metallurgical vessels October 18, 1983
An enclosure for a metallurgical vessel has a front access door to permit movement of charging devices into the enclosure for charging the metallurgical vessel disposed therein. A gas collector is mounted in the upper end of the enclosure, a first hood mounted in the enclosure for mo
4405365 Method for the fabrication of special steels in metallurgical vessels September 20, 1983
The device consists of a retractible tuyere which can be used with different types of steel melting furnaces, or any other metallurgical vessel. Said tuyere is introduced in the liquid steel bath to make the controlled refining of the same by means of gaseous oxygen injection with an
4365992 Method of treating ferrous metal December 28, 1982
A method of treating ferrous metal includes the steps of containing in a metallurgical vessel a quantity of ferrous metal which is at least partially solid in form, entraining finely divided carbon and a fluxing agent in a nonoxidizing gas and injecting the same in a first flow path
4329171 Steel making method May 11, 1982
A method of producing steel from ferrous hot metal containing carbon includes the steps of delivering oxygen and a surrounding sheath of hydrocarbon shielding fluid to the metal and beneath its surface to elevate the temperature to about 1350.degree. C. Pelletized iron material and c
4302244 Steel conversion method November 24, 1981
A steel conversion method includes the steps of delivering a first quantity of oxygen and a surrounding sheath of hydrocarbon shielding fluid beneath the level of a quantity of molten ferrous metal or bath contained in a vessel by means of bottom tuyeres and simultaneously delivering a s
4284266 Metallurgical vessel capable of receiving fluids in separate flow paths while pivoting August 18, 1981
A metallurgical vessel includes first and second tuyeres for respectively delivering process materials above and below the level of molten metal contained within the vessel. Coupled to one of the trunnion pins which support the vessel for pivotal movement about a horizontal axis is a
4275871 Metallurgical vessel and supporting means June 30, 1981
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 betw
4273316 Metallurgical vessel suspension system June 16, 1981
A molten metal processing vessel is supported on a trunnion ring by a plurality of triangular members and adjustable links. Each triangular member is pivotally connected to the vessel to a clamp ring which engages the upper trunnion ring flange. The connection at the apex of the tria
4272286 Metallurgical vessel June 9, 1981
A metallurgical vessel has releasably coupled, semicylindrical upper and lower sections arranged such that the axis of revolution of one section lies in a plane normal relative to the rotational axis of the other. The dimension of each section in the axial direction being the same as the
4260141 Centerplate wear liners April 7, 1981
A centerplate wear liner for hot metal mixer cars includes a split ring side wear liner having a shroud on its outer surface. The shroud fits within an annular groove machined into the socket which receives the centerplate. A disc wear liner is placed within the ring wear liner and s
4260140 Metallurgical vessel April 7, 1981
A refractory lined vessel has an open top and a plurality of brackets for engaging a trunnion ring to which it is coupled by bracket retainer assemblies. Each bracket retainer assembly includes pairs of gib plates affixed to the trunnion ring adjacent the opposite sides of the brackets
4249952 Method for producing cement clinker from cement kiln waste dust February 10, 1981
A method is disclosed for obtaining useful products from cement kiln waste dust. The dust is collected and added to an electric arc furnace where it is melted. The temperatures required to melt the dust are sufficiently high that alkali sulfates present in the dust are volatilized, leavi
4241902 System for vessel exchange December 30, 1980
A system for moving metallurgical vessels includes a hydraulic vessel lifting apparatus designed to raise the vessel out of supporting contact with a horseshoe-shaped trunnion ring and for lowering it onto a specially designed transfer car. The car moves the vessel to relining or bottom
4218049 Metallurgical vessel August 19, 1980
A metallurgical vessel has releasably coupled, semicylindrical upper and lower sections arranged such that the axis of revolution of one section lies in a plane normal relative to the rotational axis of the other. The dimension of each section in the axial direction being the same as the
4191364 Support for metallurgical vessels March 4, 1980
A metallurgical vessel includes a plurality of brackets which engage the upper surface of a trunnion ring for support. A gib assembly is mounted adjacent the lateral sides of each bracket. Each gib assembly includes a first member secured to the trunnion ring and a second member removabl
4168824 Enclosure for metallurgical vessels September 25, 1979
An open-topped vessel for converting molten ferrous metal to steel is pivotal about a horizontal axis and has bottom tuyeres for blowing oxygen or other gases upwardly through molten metal. An enclosure at least partially surrounds the vessel and cooperates with a smoke hood to prevent
4139368 Metallurgical method February 13, 1979
A method of treating ferrous metal in a metallurgical vessel having a plurality of two-pipe tuyeres extending generally upwardly through the vessel bottom and in spaced apart relation relative to each other. A flux, such as line, is first blown into the ferrous metal charge through the
4135703 Mobile hot metal mixer January 23, 1979
A hot metal mixer has an elongate hollow vessel mounted for rotation about a longitudinal axis adjacent each end on a cradle, each of which is supported on pairs of parallel trucks disposed on separate sets of rails. Each cradle extends transversely between the trucks of each pair and is
4128232 Cooling assembly for metallurgical vessels December 5, 1978
An open topped, refractory lined metallurgical converter vessel has a metallic shell. A cooling jacket is affixed to the frusto-conical nose portion of the shell and comprises a plurality of right angle members affixed to the shell in a side-by-side relation and extending generally in
4123043 Gas cleaning system for metallurgical apparatus October 31, 1978
A pair of metallurgical vessels are each coupled by a gas collecting hood having a movable skirt to a gas cleaning system which includes an exhaust fan and a quencher and scrubber each having flow varying means. Each vessel is surrounded by an enclosure having an access door toward which
4123042 Steel converter vessel tuyere block construction October 31, 1978
A tuyere assembly for use in metallurgical vessels includes a tubular metallic tuyere housing which is cast in a book of refractory material. When the tuyere block is installed in a metallurgical vessel, a tuyere is inserted within the tubular tuyere housing and the space between the
4121811 Metallurgical vessel suspension system October 24, 1978
A molten metal processing vessel is surrounded by a trunnion ring. A plurality of flat beam members are affixed at one end to the trunnion ring and their other ends are each apertured for pivotally engaging one of a plurality of pins extending fixedly from the vessel.
4097029 Enclosure for steel converting apparatus June 27, 1978
An open-topped vessel for converting molten ferrous metal to steel is pivotal about a horizontal axis and has bottom tuyeres for blowing oxygen or other gases upwardly through molten metal. An enclosure at least partially surrounds the vessel and cooperates with a smoke hood to prevent
4094496 Enclosure for steel converting apparatus June 13, 1978
An open-topped vessel for converting molten ferrous metal to steel is pivotal about a horizontal axis and has bottom tuyeres for blowing oxygen or other gases upwardly through molten metal. An enclosure at least partially surrounds the vessel and cooperates with a smoke hood to prevent
4085924 Cooling assembly for metallurgical vessels April 25, 1978
An open topped, refractory lined metallurgical converter vessel has a metallic shell. A cooling jacket is affixed to the frusto-conical nose portion of the shell and comprises a plurality of right angle members affixed to the shell in a side-by-side relation and extending generally in
4081269 Gas cleaning system for metallurgical apparatus March 28, 1978
A pair of metallurgical vessels are each coupled by a gas collecting hood having a movable skirt to a gas cleaning system which includes an exhaust fan and a quencher and scrubber each having flow varying means. Each vessel is surrounded by an enclosure having an access door toward which
4076223 Enclosure for steel converting apparatus February 28, 1978
An open-topped vessel for converting molten ferrous metal to steel is pivotal about a horizontal axis and has bottom tuyeres for blowing oxygen or other gases upwardly through molten metal. An enclosure at least partially surrounds the vessel and has a top opening to permit a primary
4061318 Metallurgical vessel December 6, 1977
An open-topped, refractory lined converter vessel has a plurality of tap openings and is supported on a trunnion ring by means of an adapter which is coupled to the vessel mounting brackets. A plurality of retention members are supported in the trunnion ring for vertical movement into an
4055335 Transformation of top-blown steel converter vessel to bottom-blown type October 25, 1977
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 i
4050682 Method and apparatus for handling off-gases from metal refining vessel September 27, 1977
The mouth of a metal refining vessel has a primary gas collection hood supported over it. A duct couples the hood to a gas cleaning quencher which is serially connected by a duct to a wet scrubber. A fan draws gases and suspended particulates through the system and discharges the effluen
4049246 Bumper guard for steel converting apparatus enclosure September 20, 1977
An open topped vessel for converting molten ferrous metal to steel is pivotal about a horizontal axis and has bottom tuyeres for blowing oxygen or other gases upwardly through molten metal contained therein. An enclosure at least partially surrounds the vessel and cooperates with a s
4036481 Steel converter vessel tuyere block construction July 19, 1977
A tuyere assembly for use in metallurgical vessels includes a tubular metallic tuyere housing which is cast in a block of refractory material. When the tuyere block is installed in a metallurgical vessel, a tuyere is inserted within the tubular tuyere housing and the space between the
4032119 Lance seal for converter vessel gas collecting hood June 28, 1977
A lance port seal for BOF vessel gas collecting hoods includes a pair of seal portions each having registrable semi-circular openings for receiving an oxygen lance therethrough. A support assembly mounts the seal members above the lance port for limited two-dimensional movement in a plan
4018975 Suspension means for electric furnace transformer secondary buses April 19, 1977
An electric furnace supply transformer is inside of a room or vault where roof beams extend in cantilever fashion over a wall of the vault. Secondary buses from the transformer extend through clearance holes in the wall and engage with vertical posts that are supported on and electricall
3998626 Method for air pollution control combined with safe recovery and control of gases from a bottom- December 21, 1976
A gas collector hood is located close to the mouth of a converter vessel and has a diameter which is not much greater than the mouth of the vessel. A mixture of oxygen together with entrained powdered materials based on process requirements and a hydrocarbon fluid as cooling agent are bl
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