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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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6736876 |
Fluidized bed breakage prevention system for fluidized bed reduction reactor and method
A fluidized bed reduction reactor ( 100 ) for supplying a reduced iron to a melter-gasifier ( 1 ) of a smelting reduction system includes an exhaust gas supply unit ( 3 ) for supplying an exhaust...
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6228142 |
Apparatus for keeping optimal penetration depth formed at front end of oxygen tuyere and method for keeping the same
An apparatus for keeping an optimal penetration depth formed at the front end of an oxygen tuyere in the producing facilities of molten pig iron utilizing non-coking coal and a method for keeping...
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6187076 |
Fluidized bed reduction method, fluidized bed reduction reactor, and fluidized bed reduction system
A fluidized bed reduction method in which powder raw material, including powder ore or partially pre-reduced powder ore, forms a fluidized bed with, and is sequentially reduced by reducing gas...
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5917114 |
Degassing of liquid aluminum and other metals
Offgas recycling processes, including an argon degassing embodiment which cyclically regenerates one treatment flow path while the other treatment flow path is treating the offgas. The system is...
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5759231 |
Method for processing metal chips and/or metal dust
A method for processing metal chips and/or metal dust, including a first process step in which the metal is moistened and fed by a conveyor system to a collecting tank, especially a settling tank....
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5447550 |
Method and apparatus for the pneumatic transport of iron-bearing particles
Methods and systems are provided for controlling the pneumatic transport of friable particulate solid material through a transport pipe by means of a carrier gas circulating in a loop comprising...
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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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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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4420334 |
Method for controlling the bottom-blowing gas in top-and-bottom blown converter steel making
A method is provided for alternately changing the bottom-blowing gas between an oxidizing gas and an inert gas in top-and-bottom blown converter steel making. The bottom-blowing gas is changed to...
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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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4211555 |
Method of controlling combustion in a metal melting furnace
Disclosed is a method of treating the components of a gaseous fuel mixture to obtain a predetermined mass ratio of the gaseous components for use in metallurgical melting furnace. Two streams of...
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4148629 |
Process for controlling a steel refining process for steels having a carbon content within the range of 0.1 to 0.8 % by weight
Process for controlling a steel refining process for steels having a carbon content within the range of 0.1-0.8 percent by weight, in which the desired final carbon content of the metal bath and...
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4047937 |
Method for controlling the operation of a steel refining converter
A method for controlling the operation of a steel refining converter of the type having bottom tuyeres, each tuyere consisting of a center jet surrounded by annulus jets is disclosed. Controls are...
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3999977 |
Method for controlling the injection of flux into a steelmaking vessel as a function of pressure differential
This invention is directed to a method and apparatus for controlling the injection of flux into a steelmaking vessel as a function of the differential pressure between the flux containing tank and...
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3970446 |
Method of refining an iron base melt
A method of oxygen refining molten hot metal to steel by blowing an oxygen stream at a predetermined flow rate from an oxygen supply source having a pressure from about 12 to about 18 atmospheres...
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3938363 |
Forming metal plate
A metal forming method comprising the steps of heating of metal plate to a temperature below the temperature at which grain boundary melting occurs, placing the plate on a bottom...
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3897047 |
Apparatus for and method of refining an iron base melt
A method of oxygen refining molten hot metal to steel by blowing an oxygen stream at a predetermined flow rate from an oxygen supply source having a pressure from about 12 to about 18 atmospheres...
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3772504 |
APPARATUS FOR OPERATING A BLAST FURNACE
The apparatus includes means for comparing the rate of drop in the height of said burden with a predetermined normal rate of drop, means for indicating when the rate of drop in the burden height...
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3715205 |
METHOD FOR REDUCING CHLORIDES AND A DEVICE THEREFOR
A method for reducing a metal chloride, especially for reducing a chloride of sublimable metal by using a metallic reducing agent, and a device therefor. A tank for storing the starting metal...
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3551140 |
CONTROLLED REFINING OF PIG IRON
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3272617 |
System for adding fluid fuel to furnace blast
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3212879 |
Process and apparatus for controlling shaft furnaces
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3210181 |
Gaseous fuel control process for furnaces
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3092680 |
Blast furnace control system
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2822257 |
Method and apparatus for controlling blast furnaces
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