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7887617 |
Method and apparatus for ore processing
Method and apparatus for determining the ore content and for further treatment of the ore, the ore content of the crushed ore being monitored in the method on-line and the information on the ore...
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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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5557631 |
Sonic furnace monitoring apparatus
Apparatus and method for obtaining accurate sonic input data from a metallurgical furnace, for accomplishing accurate control of a lance injecting oxygen and/or other substances into the melt. A...
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4530102 |
Lancing in electric arc steelmaking
A method of controlling the depth of immersion of an oxygen lance in a molten bath within an electric arc furnace where noise emitted from the furnace during lancing in an acoustic spectrum ranging...
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4247086 |
Lance hoisting and skull detecting apparatus for basic oxygen steelmaking furnaces
A pair of cables are employed to raise and lower the lance of a basic oxygen steelmaking furnace. A centrally suspended equalizer bar is connected between the cables and a load detector is...
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4219814 |
Scanning radar
A radar, such as a ranging radar, includes a non-scanning antenna which directs a beam of microwave energy toward and receives a return beam from a microwave reflector. A microwave reflector is...
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4166609 |
Device for detecting surface level of scum in scum removing apparatus
In a scum removing apparatus including a suction source, a suction pipe having one end communicating with the suction source and the other free end positioned above the surface of scum to suck the...
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4065298 |
Steel making process by oxygen top-blown converter
In a steel making process with an oxygen top-blown converter when a certain inclining angle (θ) is given within a range of 0<θ≤15° to normal axis of an oxygen blow lance being supported at an uppe...
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3896674 |
Sensor probe control system
Apparatus for automatically controlling a bath sensing operation in a steelmaking process is disclosed. A sensor, housed within a probe, is movable in relation to the probe. A first mechanism is...
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3741557 |
APPARATUS FOR CONTROL OF CARBON CONTENT IN STEEL PRODUCED IN BASIC OXYGEN FURNACE PROCESS
This patent discloses an improvement in a basic oxygen furnace steelmaking process in accordance with which steel of desired carbon content is produced by observing the intensity of the flame at...
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3727897 |
LANCE WITH DISTANCE MEASURING SUB-SYSTEM
The invention is directed to an assembly which includes in combination a lance for supplying a gas to a nozzle in combination with radar-type means for determining the distance between the nozzle...
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3720404 |
SYSTEM FOR CONTROLLING CARBON REMOVAL IN A BASIC OXYGEN FURNACE
Both low and high carbon steels are produced in a basic oxygen furnace controlled by a system which employs a direct sampler operated at an adequately early predetermined time during the oxygen...
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3708159 |
METHOD AND APPARATUS FOR LOCATING THE SURFACE OF A LIQUID METAL BATH
A method and apparatus for locating the surface of a liquid metal bath, particularly intended for use with a basic oxygen steelmaking furnace or an open hearth in which oxygen is used. Oxygen is...
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3701518 |
OXYGEN LANCE CONTROL ARRANGEMENT FOR BASIC OXYGEN FURNACE
A ranging radar system is employed in combination with the oxygen blowing lance of a basic oxygen furnace to make an absolute measurement of the distance between the lance and the level of molten...
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3647198 |
PROTECTIVE SYSTEM FOR BASIC OXYGEN FURNACE LANCE
A system for automatically and positively retracting a basic oxygen furnace lance upon the occurrence of a power failure. The system is mechanical, relying only on gravity to withdraw the lance,...
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3610599 |
SYSTEM FOR CONTROLLING PHOSPHORUS REMOVAL IN A BASIC OXYGEN FURNACE
Phosphorus control is achieved in low and high carbon basic oxygen furnace heats on the basis of direct metal sampling during the oxygen blow. Dephosphorizing corrective action is applied after the...
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3610601 |
APPARATUS FOR POSITIONING A CONSUMABLE LANCE
A plurality of parallel conductive loops extending longitudinally substantially the length of a consumable lance utilized to supply oxygen to a bath of metal within a vessel for steelmaking. Each...
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3598386 |
APPARATUS FOR MAKING STEEL
This invention relates to a method and apparatus for making steel in a converter top-blown with oxygen. In particular, the invention relates to operating a converter top-blown with oxygen by...
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3561743 |
USE OF STACK GAS AS OXYGEN POTENTIAL MEASUREMENTS TO CONTROL THE BOF PROCESS
This invention relates to a control method and apparatus for a basic oxygen furnace steel making facility of the type having an oxygen lance for supplying oxygen to a molten metal bath within the...
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3386722 |
Carriage for supporting lances in steel making operations
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2883279 |
Method and arrangement for refining metal baths in rotary furnaces
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2822163 |
Charging apparatus
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