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7452498 |
Pressure-regulating device, transportation vehicle, and pressure difference-controlling unit
A pressure controlling apparatus controls a pressure in a container capable of storing a molten metal and supplying the molten metal to an outside using a pressure difference and includes: a...
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6790254 |
Method for controlling and adjusting the concentration of a gas component in a melt and a device for carrying out the same
The invention relates to a method for producing a metal alloy, in which in a vessel at overpressure a certain desired content of an alloying constituent, which is gaseous in its normal state, is...
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6767504 |
Heat treatment furnace
In a heat treating method and furnace used in this method which can prevent disturbance of an atmosphere gas inside a heat chamber, and can prevent deterioration of the processing quality and...
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6685876 |
Method for automatically controlling hydraulic opener
An automatic control method for a taphole opener for opening a taphole by giving impact and rotation to a drill unit holding a drilling rod and driving the drill unit forward and backward by a...
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6409790 |
Method and apparatus for practicing carbonaceous-based metallurgy
An energy efficient, coal-based method and apparatus that are environmentally friendly which produce under pressure metallized/carbon product and molten metal directly from abundant coal or other...
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6315942 |
System for delivery of gas-enriched fluids
A system and method for delivering a gas-supersaturated fluid comprising a fluid reservoir, a fluid pump, a gas source, a high pressure gas exchanger, and one or more arrays of capillary channels...
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6303073 |
Metering oven
The invention concerns a metering oven (1) with a vessel (12) for holding a liquid metal and with a device for detecting a liquid metal level in a vessel. A tubular probe (5) is connected to a gas...
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5879617 |
Apparatus for treating waste materials
A method and apparatus for treating residual or waste materials that can be recycled energetically, especially light-weight refuse from shredders, which, reduced in size and classified, are stored...
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5762682 |
Method and apparatus for processing ferrous materials
In steel-making, there are conflicting processing requirements at different stages of the process. The method and apparatus of the invention creates different processing conditions at different...
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5599379 |
Apparatus and method for recovering non-ferrous metals from hot dross
Method and apparatus for recovering free aluminum from a metal bearing dross containing free aluminum metal and oxides of the metal. Hot dross is collected from a hot dross source into a vessel,...
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5478053 |
Refractory gas purging device
This invention relates a refractory gas purging device for the introduction of gases through a metallurgical vessel to molten metal therein, the device having improved wear indication, safety, and...
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5443187 |
Pump apparatus for pumping melt metal
Molten metal is pumped from a furnace to a place where it is utilized using a gas-plunger pump having a container holding the chamber with an inlet for drawing metal from the furnace to the...
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5362031 |
Method and apparatus for the automatic monitoring of operating safety and for controlling the progress of the process in a vacuum heat-treatment oven
In a vacuum heat treating oven operating with hydrogen under pressure as the cooling medium, especially for the quenching of greatly heated metal workpieces (5), a method is provided for the...
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5308043 |
Top submergable lance
The top-submergable injection lance has an elongate conduit which extends between upper and discharge ends and defines a bore, for the supply of reactants, through the conduit and an annular, alloy...
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5286276 |
Quenching system to prevent loss of fluidity in a reaction vessel
A quench system which can be used to quench a continuous reaction such as the continuous digestion of titaniferous ores with sulphuric acid is provided. The quench system comprises a pressure...
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5221512 |
Apparatus for preheating and removing organic materials from scrap iron
This method of preheating scrap iron mixed with plastic, rubber and resinous, i.e. organic, materials and intended for electric furnaces, in particular electric arc furnaces, is characterized by...
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5183495 |
Method for controlling a flow rate of gas for prereducing ore and apparatus therefor
A method for controlling a flow rate of gas for prereducing ore comprises the steps of prereducing ore in a prereduction furnace having a fluidized bed with a gas generated in a smelting reduction...
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5127941 |
Process and device for separating the constituents of an alloy
The invention relates to a process for separating the constituents of an alloy, especially an alloy comprising a refractory base metal and at least one nonrefractory additive metal, which consists...
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5020778 |
Apparatus for stirring molten metal
The invention provides a new stirring apparatus for stirring the liquid metal contents of a furnace, particularly the shallow furnaces used in the processing of aluminum and its alloys. The...
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4940213 |
Exhaust processing apparatus
An exhaust processing apparatus comprises a cracking furnace for cracking and solidifying exhaust discharged from a reactor for forming crystals on a semiconductor substrate, a first collecting...
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4813652 |
Plant for effecting the controlled cooling of metal sheets
The process controls the cooling of a metal sheet so as to impart thereto a predetermined crystalline structure. The sheet to be cooled is passed through a case containing a mass of regularly...
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4781358 |
Apparatus for monitoring an article in sintering furnace
An apparatus for measuring and regulating the variable pressure furnace gas chemistry is described. The apparatus uses a mass spectrometer for measurements, in the preferred form of the invention,...
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4767103 |
Convertor pressure control device in a convertor waste gas disposing device
A converter pressure control device for use in a converter waste gas disposing device wherein a calculator determines the difference between the pressure in a converter and atmospheric pressure and...
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4732607 |
Method of controlling the stirring strength and flow rate of a jet of gas blown through a lance onto a molten metal surface
A method of controlling independently of each other the stirring strength of a jet of oxygen gas and the flow rate of the oxygen gas to be blown onto a molten metal bath in a top-blowing oxygen...
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4691898 |
Continuous annealing furnace for metallic strip
A continuous annealing furnace for a metallic strip, wherein each of a direct firing type non-oxidizing furnace and a forced convection type preheating zone is vertically disposed, with an inlet...
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4688039 |
Heat-insulated telemetry system for vacuum furnace
A heat-insulating box houses a telemetry system of high accuracy for use within a high-temperature vacuum furnace. The container includes an inner box formed by a block of rigid heat-insulating...
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4676107 |
Pressure sensing probe
A pressure probe for an arc furnace having a roof provided with an access opening. The probe is located above the opening and includes side and end walls defining a bottom periphery for sealing the...
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4668285 |
Process and installation for the continuous control of a blast-furnace
This process and this installation permit taking samples of blast-furnace gas from a series of orifices (T1, T2 . . . ) located at different levels along a generatrix of the body of the...
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4647017 |
Vacuum heat treating furnace and quench system with drop transfer
A vacuum heat treating furnace and quench system in which a load hanger rod with attached load is suspended vertically from the vacuum chamber top cover assembly, and at the end of the heating...
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4564174 |
Device for the recovery of mercury
This process enables the recovery of mercury from waste containing plastic material, e.g. batteries. The waste is slowly heated while an inert gas is being introduced in a vacuum for fractionating...
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4559062 |
Apparatus for gasification of solid carbonaceous material
A gasification apparatus utilizing a molten metal bath is disclosed. The apparatus comprises: a gasification chamber of the closed type, which is provided with a product gas recovery port and at...
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4521226 |
Method of automatically controlling a dust-collecting plant
For a dust-collecting plant, in which a plurality of gas streams are sucked from spaced apart dust sources and are delivered in a manifold to a dust-collecting unit and the gas is delivered by a...
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4449700 |
Method and apparatus for sampling or measuring a parameter of a metal melt
The buoyancy change of a probe as it is lowered into a molten metal melt is detected and the lowering of the probe terminated a predetermined time after the detection of the buoyancy change to...
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4427183 |
Gas control system for steel-making converters
A system for evacuating gases from a top blown steel making converter measures any actual value pressure in a chamber between the seal of a closure ring and duct on which this ring is mounted for...
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4415362 |
Nodular iron making and/or storing
A melt of magnesium-containing nodular iron partially fills an enclosure forming a space above the melt which fills with the vapor of magnesium evaporated from the melt. Magnesium is fed into the...
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4415142 |
Apparatus for handling converter gas
An apparatus for the handling of converter gases, especially the storage thereof, comprises a hood which fits over the mouth of a steel making converter and is connected by a duct and blower to a...
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4410355 |
Process for controlling a pelletizing plant for fine-grained ores
Process for monitoring a pelletizing plant for fine-grained ores, in which the humidity content of the green pellets is adjusted by adding water with consideration of the humidity content of the...
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4395283 |
Method of switching bottom-blown gases and apparatus therefor
A method of switching bottom blown gases and an apparatus suitable for carrying such method into practice in blowing successively in turn a plurality of gases through piping into molten steel in a...
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4375375 |
Constant energy rate forming
An improved method for hot working materials previously considered to be difficult or impossible to hot work is described. The method consists of varying the deformation conditions in order to...
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4362484 |
Apparatus for hot briquetting of ferrous or non-ferrous metallic particles
Hot briquetting apparatus for ferrous or non-ferrous particles has a furnace having upper and lower chambers. The particles are supplied to the lower chamber and leave the lower chamber through a...
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4352486 |
Pressure probe for metallurgical vessels
A shielded pressure probe for measuring the pressure within a metallurgical vessel includes a tubular housing extending through and spaced from an opening in the vessel's refractory lining. The...
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4331450 |
Coal gasification plant slag tapping process
An automatic arrangement in which the intermittent tapping of liquid molten slag from the hearth of a slagging coal gasifier vessel (30) through a tap orifice (32) into a slag quench chamber (31)...
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4322060 |
Quench tank steering roll assembly
A method and apparatus are disclosed for steering and treating continuously running strip material. The strip material is directed by a steering assembly having a steering roll mounted to a yoke....
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4315619 |
Process and system for recovering top gas from blast furnace or the like
A process and system for recovering the top gas from a blast furnace into a gas holder without discharging the top gas into the surrounding atmosphere so as to be utilized for various purposes,...
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4279406 |
Plant for generating an atmosphere for the heat treatment of metals
This invention relates to the generation of an atmosphere for the heat treatment of metals, incorporating an alcohol of the methanol type that decomposes by cracking. A generating plant comprises a...
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4234335 |
Gas cleaning method and apparatus
A washer having a controlled-gap scrubber is connected to the gas outlet of a pressure blast furnace and an expansion turbine for the recovery of energy is connected downstream of the...
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4220319 |
Ovens
There is disclosed a device for delivering predetermined metered quantities of molten metal having a holding vessel and pressure means for forcing molten metal out of the vessel through an outlet...
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4215852 |
Apparatus for locking a converter tilting gear during a blasting operation
The invention refers to an apparatus for locking a converter tilting gear during a blasting operation, which apparatus is provided with a supplementary gear arrangement to facilitate...
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4214735 |
Pressure measurement in a hood above a converter for manufacturing steel
Apparatus for manufacturing steel includes a hood adapted to be connected to the mouth of a converter. The hood has at least one conduit opening into it for introducing secondary materials into the...
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4212706 |
Method of controlling pressure of gas circulating in the coke dry quenching apparatus
In the dry quenching apparatus for red hot coke, the amount of quenching gas to a cooling chamber is controlled by controlling the speed of rotation of a blower in order to fix a diverging point...
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