УСТРОЙСТВО ДЛЯ ИНЖЕКЦИИ ТВЕРДОГО СЫПУЧЕГО МАТЕРИАЛА В ЕМКОСТЬ

Изобретение относится к области металлургии, в частности к устройству для инжекции твердого сыпучего материала в емкость. Устройство содержит фурму для введения твердого материала в емкость, проходящую через отверстие в боковой стенке емкости во внутреннее пространство. Фурма имеет центральную внутреннюю трубу, предназначенную для прохождения по ней твердого сыпучего материала в емкость, и кольцевую охлаждающую рубашку, окружающую центральную внутреннюю трубу на существенной части ее длины. Фурма содержит монтажную конструкцию, содержащую трубчатую часть, проходящую вокруг охлаждающей рубашки, диаметр которой приблизительно в два раза превышает диаметр охлаждающей рубашки. Трубчатая часть имеет двойную стенку, при этом внутреннее пространство между ее стенками разделено на каналы, по которым течет охлаждающая вода. Использование изобретения обеспечивает работу фурмы при высоких рабочих температурах и облегчает удаление ее после плавки. 10 з.п. ф-лы, 12 ил.

PROCESS AND INSTALLATION FOR HEATING-UP A SCRAP-CHARGED STEEL BATH

Verfahren zum Oberwindfrischen von phosphorhaltigem Roheisen

Verfahren und Vorrichtung zur Erzeugung von Stahl

Verfahren zum Frischen von Eisen in Stahl

Blasduese zum Frischen eines Metallbades von oben

Schmelzofen zur Herstellung von Stahl und Verfahren zum Betrieb des Ofens

BLASSTAHLVERFAHREN

Verfahren zur schnellen Erzeugung einer fluessigen hochreaktionsfaehigen, kalkreichen Schlacke mit Hilfe von aufgeblasener Luft, sauerstoffangereicherter Luft oder reinem Sauerstoff beim Behandeln von Eisenbaedern

EINRICHTUNG ZUR ERZEUGUNG VON STAHL.

Improvements in or relating to process for making steel

An improvement in or modification of the process according to the parent Specification comprises the elimination of phosphorus to not more than 0,04 per cent and the simultaneous reduction of carbon by 0,4 per cent but leaving at least 1 per cent carbon in the metal and at the same time developing a temperature of not less than 2,500 DEG F. A lime/silica ratio of at least 2 may be obtained while the phosphorus is reduced to the required value and the carbon content of the metal is not less than 2 per cent. The oxidising gas may be free oxygen.

Improvements relating to the treatment of molten pig iron or similar iron alloys rich in carbon

In the refining of pig-iron or other high carbon iron alloy with an oxygen-containing gas the molten metal is treated with the oxygen-containing gas in a cylindrical furnace rotating about a horizontal axis at a peripheral speed, during at least a part of the time, of one metre per second, the oxygen-containing gas being introduced above the level of the molten metal. The oxygen, which may be pure or commercial oxygen or oxygen-enriched air, may be supplied centrally of one end of the furnace, alone, or in admixture with other gases, e.g. an ejector nozzle may be used to mix the oxygen with the furnace gases, and may or may not be directed against the bath. The speed of rotation of the furnace may be varied during the process. The oxidizing gas may be shut off, if desired to allow some reaction, e.g. desulphurizing, to take place in a reducing atmosphere. The slag may be removed continuously or intermittently. The Specification as open to inspection under Sect. 91, includes also the use ...

An improved device for the blowing of pig iron in a converter

... 717,865. Iron manufacture. OESTERREICHISCH-ALPINE MONTANGES. March 12, 1952 [March 13, 1951151No. 6397/52. Class 72 A device for converting pig iron to steel in which an oxidizing gas is blown against the surface of the metal bath comprises an additional pipe, opening in the upper part of the converter and supplying an oxidizing gas which does not impinge on the surface of the bath. As shown a converter 1 has a pipe 4 supplying oxidizing gas which impinges on the surface 5 of the bath and an additional pipe 7, the open end 8 of which penetrates a short distance into the converter, the oxidizing gas from which burns the carbon monoxide produced at the surface of the melt and maintains a high temperature near the mouth of the converter. The pipe 7 may be adjustable in position and may be removed with the pipe 4 when the conversion is complete ...

Refining pig iron

... Pig iron is refined in a vessel e.g. a converter by top blowing an oxidizing gas, such as oxygen containing slag-forming materials e.g. lime or limestone in suspension, on to the molten pig iron covered with a foaming slag which is at least partly removed from the vessel during at least part of the refining operation, e.g. through a slag-overflow opening 2 in the side of the vessel 1 (Fig. 4). The top blowing may be effected with a lance 5 placed between the opening 2 and the vessel axis and producing a jet inclined downwards away from the opening. A cover 4 is preferably provided to pressurize the inside of the vessel. An opening 3 may be provided at a level higher than that of opening 2 for tapping molten iron when the vessel is turned down. Foam-promoting materials such as iron or chromium oxide, graphite or magnesia may be introduced into the vessel. The slag being removed preferably contains 20% or less of iron and at least 14% P2O5. Silica or other Si compound ...

Refining ferrous metals with oxygen

... 1,106,952. Refilling Iron. UNION CARBIDE CORPORATION. March 17, 1965 [March 31, 1964], No.11238/65. Heading C7D. A bath of molten iron is refined by top blowing it with at least one stream of oxygen to which has been added a non-gaseous fluidized fuel, namely a liquid fuel e.g. fuel or motor oil, kerosene, heptane, heavier petroleum distillates and other liquid hydrocarbons, or a solid fuel dispersion in a liquid carrier e.g. coal dust suspended in fuel oil, in an amount of 3 to 12 1bs/1000SCF of oxygen flow (48À7 to 195g/m3) sufficient to suppress the formation of iron oxide fume. The admixture may be blown against the bath surface from a lance (see Figure) initially positioned higher than the normal working height for refining, and then lowered. Initially, oxygen only may be blown, or a near stoichiometric ratio of fuel to oxygen (i.e. in excess of 12 1bs/1000SCF oxygen) may be supplied to the lance which is operated as a burner to introduce additional heat to any cold metallic ...

A method of refining iron and ferrous alloys

Iron and ferrous alloys are refined by a liquid oxidizing agent such as liquid air, liquid air enriched with oxygen, or liquid oxygen. The liquid may be fed on to the upper surface of the molten metal, and the refining may be carried out in combination with gaseous, solid or molten oxidizing agents.

Method for correcting the temperature of steel at the end of the refining process

At the end of refining in a top-blown steelmaking process the temperature of the bath is controlled by the addition of lime and the blowingin of an oxidizing gas while the converter is rotating, preferably at 10 r.p.m. or less. The lime may be carried in the gas stream.

The control of steel manufacturing processes

... In a process for refining iron in a converter by blowing with a jet of oxygen, which may or may not contain another gas and which contains a dephosphorizing agent, foaming of the slag is detected by recording the intensity of acoustic radiation emitted, a distinct reduction thereof indicating the onset of foaming. Suitable apparatus consists of a unidirectional microphone, band-pass filter, and recorder. As shown in Fig. 1, converter 1 has a hood 3 equipped with oxygen lance 5 slidable through aperture 4. The hood has a further aperture 6 through which acoustic radiation escapes to be monitored by microphone 7.

Improvements in or relating to telescopic blowing tubes for metallurgical furnaces

... 937,779. Telescopic oxygen lances. GUTEHOFFNUNGSHUTTE STERKRADE A.G. July 14, 1961 [Sept. 24, 1960], No. 25623/61. Classes 51 (1) and 51 (2). [Also in Group XXVIII] A telescopic blowing tube, particularly for a converter, comprises an inlet section 1 and an outlet section 2, means for extending and retracting the sections sufficiently to introduce the tube into and withdraw it from the converter and means for moving the tube as a whole when the sections are extended to provide adjustments during a blowing process. In the preferred embodiment the inlet section 1 is provided with an end portion 9 of increased diameter which engages an annular seal 7 mounted in the outlet section 2. As the sections are retracted, the seal 7, after moving past the portion 9, does not engage the inlet section due to its reduced diameter thus avoiding any abrasive action. Guide rings 10,11 on the inlet and outlet sections, respectively, prevent lateral movement of the sections with respect to each other. Air ...

Process for refining pig iron rich in phosphorus by a top blast

Pig-iron rich in phosphorus is refined by top-blowing with a stream of oxygen with the addition of slag-forming materials and then removing the metal from the vessel while retaining the slag therein. The metal is transferred to a slag-free vessel, which may be the original vessel from which the slag has been removed or another vessel, and is then subjected to a conventional second blowing stage.

Gasification of solid carbonaceous materials

The gasification of solid carbonaceous materials such as coal is achieved by directing a stream containing the carbonaceous materials onto a high temperature hot spot which has been formed on the surface of a bath of molten iron by oxygen jets blown thereagainst, the stream containing the carbonaceous materials emanating from a non-submerged, top-blowing lance, the oxygen jets emanating from the same lance or from different lances, and the bath of molten iron being contained in a reactor such that its total volume remains essentially constant.

METHOD OF HEATING OR MELTING METALS

... 1284309 Gas or liquid fuel burners UNION CARBIDE CORP 16 Dec 1969 [17 Dec 1968] 61123/69 Heading F4T [Also in Division C7] A burner for producing a flame containing molten or semi-molten particles for improving heat transfer includes a conduit 12 for a suspension of the particles in a liquid fuel, the conduit communicating through passage 14 with swirl chamber 16 which discharges through orifice 18 into throat 20. Oxygen is supplied through passage 22 and vanes 24 to the throat while coolant is passed through passages 11, 13, 15, 17. The burner is used for melting charges of scrap metal.

An oxygen steel-making process

In an oxygen steel-making process a super-atmospheric pressure is maintained in the furnace for at least part of the refining period to control foaming of the slag. The pressure may be varied cyclically and towards the end of refining may be sharply reduced to bring about boiling of the metal.

Improvements relating to the refining of iron

A process of refining pig iron containing more than 0.2 per cent phosphorus by blowing oxygen into or on to the metal and adding ore or mill scale, lime, and flux comprises refining under a dephosphorizing slag with a uniform strong supply of oxygen in two stages, in the first of which the carbon is reduced to less than 0.2 per cent and the phosphorus to not more than five times the carbon content, removing the first slag, recarburizing to a carbon content of more than 0.2 per cent and preferably to between twice and fifteen times the carbon obtained at the first stage, adding a new slag, and finishing the refining with an oxygen supply of the same strength. The heat may be recarburized with solid or liquid open hearth pig iron, speigeleisen, ferromanganese, or electrode graphite and the second slag may be a fine grained or liquid slag from a previous heat, alone or mixed with lime and flux, in which the P2O5 content is not above 2 per cent.

PREPARATION OF LOW-CARBON LOW-NITROGEN STEELS IN THE BASIC OXYGEN PROCESS

Improvements in or relating to the synthetic production of pig irons

In a process for the synthetic production of pig iron a metal produced by the process of the parent Specification is subjected to recarburization and the addition of the required amounts of silicon and manganese. In the production of the preliminary metal superheated steam may be added to the oxygen to enable a carbon content of 2% to be obtained before recarburizing by the addition of electrode scrap and the addition of ferromanganese and ferrosilicon. It is stated that a pig iron having more than 4% carbon and less than 0.1% phosphorus may be obtained.

Process for the manufacture of steel

A process of top blowing steel comprises blowing with oxygen at a pressure of less than 6 atmospheres absolute, in a first stage of which the oxygen is blown at a rate of at least 4 standard cubic metres per minute per ton of metal from one or more lances the ends of which are more than 1.5 metres from the metal surface, and in a second stage of which the oxygen rate is 2-3 standard cubic metres per minute per ton of metal and the ends of the lances are less than 1.5 metres from the metal surface. An agitating gas may be supplied, e.g. through bottom tuyeres, at a pressure of more than 6 atmospheres absolute and a rate of 2 standard cubic metres per minute per ton of metal. The agitating gas may be air, oil vapour, natural gas, coke oven gas, or methane. It is stated that the time of blowing is considerably reduced in comparison with previously known processes.

Refining of molten ferrous metal containing carbon

A method of refining pig iron in a rotatable furnace by blowing with a gas containing at least 40 per cent oxygen comprises blowing the metal with the axis of rotation of the furnace inclined at an angle of more than 45 degrees from the vertical during one part of the process and during another part of the process with the axis of rotation vertical. When the furnace is in the inclined position the oxygen is supplied through an opening at one end and when the furnace is vertical the oxygen is supplied through a tuyere from above on to the surface of the metal. The early part of the conversion, i.e. the oxidation of manganese and silicon, may be performed with the furnace (which may be a drum furnace closed at one end and having an opening at the other for the supply of oxygen, the furnace being mounted on trunnions and rotatable about the centre line passing through the opening and the closed end) lying in the horizontal position and rotating at 30-40 r.p.m. When the carbon boil commences ...

Improvements in or relating to the refining of pig iron

A process for refining high phosphorus pig iron comprises blowing the pig iron in a basic Bessomer converter until the carbon end-point is reached, after-blowing to obtain a low phosphorus content, deslagging and transferring the melt to a second vessel, carburizing, and then refining the melt by blowing pure oxygen on to the surface of the metal after adding slag-forming materials. The recarburization may be to a carbon content of 1-2% by means of coke or pig iron, in the latter case the phosphorus content may be raised to 0.8% at the most. The second vessel may be a ladle or a refractory-lined vessel having a solid bottom.

Improvements in the manufacture of steel

A method of controlling the heat content of a charge for conversion to steel by surface blowing comprises supplying a desired amount of heat to the charge separate from the conversion process, i.e. before or after refining or between refining phases, by blowing it with a mixture of gas containing oxygen and a finely p divided oil. The mixture of oxygen and oil used for heating should be such that any excess of oxygen does not exceed 10%. The solid charge materials, i.e. scrap and lime, may be preheated and, after melting-down, the heat may be carburized before refining.

Treatment of ferrous metal

Iron and its alloys are produced and refined by the process described and claimed in the parent Specification wherein the gas used in passing through the bore of the tubular carbon electrode to the arc is argon containing 0,05 to 20% by volume oxygen. A reducing gas or a powdered reducing solid may be mixed with the argon.

Improvements in the manufacture of iron alloys

... 185,745. Elektrizitõtswerk Lonza. Sept. 10, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Alloys.-Elements such as silicon, chromium, or tungsten to be added to a molten iron bath are employed in the form of oxides or ores in admixture with a reducing metal or compound such as aluminium, calcium, silicon-calcium, silicon-aluminium, or the like. The mixture may be briquetted with the aid of a binder.

A method for regulating the heat balance of solid or fluid loads.

Thermal process of adjustment for process of continuous refining.

Process of implementation of metallurgical processes and device allowing the application of this process.

Process and device of continuous refining of metals.

Method of supplying heat to a solid and/or liquid charge in converting the same to steel

Process of treatment of the nickeliferous laterites.

Process for the production of steel.

PROCEDURE FOR THE PRODUCTION OF STEEL AND FERROUS ALLOYS

PURIFY FROM FUSIONLIQUID METAL

VERFAHREN ZUM AUFSTICKEN VON STAHLSCHMELZEN

PROCEDURE AND DEVICE FOR THE DELIMITATION OF THE FOAMED SLAG VOLUME IN A METALLURGICAL CONTAINER

PROCEDURE FOR THE PROCESSING OF MELTED STEEL

PROCEDURE FOR THE TREATMENT OF STEEL IN AN OXYGEN CONVERTER FOR TOP BLOWING

Decarburization of molten stainless steel in a converter involves delivering the treatment gas through an opening below the molten level and blower lances above it, to mix the gas thoroughly through the molten metal

Decarburization of molten steel (3), especially in stainless steel production in a metallurgical vessel (2) and particularly a converter, involves treatment with oxygen and an inert gas if required and especially argon and/or nitrogen. To decarburize molten steel with carbon content of at most 0.3 wt.%, the gas is introduced through an opening (5) below the molten steel level and a blower lance (6, 7) over the molten steel surface, to bring the gas into contact with the metal.

PROCEDURE FOR TREATING MOLTEN BATHS WITH A FRESH MEANS FROM OXYGEN

PROCEDURE FOR MANUFACTURING STEEL BY CARBON ELIMINATION FROM PIG IRONS IN THE CONVERTER AND COMBUSTION CHAMBER TO DURCHFUHRUNG THE PROCEDURE

PROCEDURE FOR THE AUFSTICKEN OF STEEL MELTS

PROCEDURE FOR REFINING A METALLBADES, WHICH CONTAINS CELEBRATIONS COOLING MATERIALS.

PROCEDURE FOR MANUFACTURING STEEL BY CARBON ELIMINATION FROM PIG IRONS IN THE CONVERTER AND COMBUSTION CHAMBER TO DURCHFUHRUNG THE PROCEDURE

Procedure for manufacturing steel

Blast lance with a water jacket and two flow paths for gas, which can be blown up coaxial with the lance axle, on a Metallbad

Procedure and crucible for the execution of blowing up procedures

Procedure for the carbon elimination of metals with the help of a burning gas jet, in particular for the production of steel from pig irons

Procedure for the production of highly alloyed steel and application of the same for the production of ultraweichen chromium-nickel stainless steels

Blower for the execution of metallurgical processes

Procedure for the carbon elimination and zür heat supply when the carbon elimination pig irons by means of gaseous kohlendioxydhältiger fresh means

Procedure for the carbon elimination of pig irons in the rotating furnace

Procedure for the production of steel by blowing up oxygen

Procedure and device for feeding metallurgical containers, in particular converters, with granular and/or powdered aggregates

REFINING OF STEEL

HEATING STEEL BATH CHARGED WITH SCRAP

METHOD FOR REFINING IRON BASE METAL

PROCESS AND APPARATUS FOR HEATING A STEEL BATH CHARGED WITH SCRAP

The invention is concerned with a process and apparatus for heating a steel bath charged with scrap which efficiently utilizes converter waste gas to supplement outside energy sources.

PROCESS FOR PRODUCING HIGH-QUALITY STEEL

The invention is concerned with a process for producing high-quality steel having a pre-selected carbon content from a melt. The process of the invention comprises decarburizing a melt in a converter by top-blowing the melt with oxygen such that the carbon content of the melt is lowered to less than about 0.1% carbon. A slag is created on the melt and carbon is delivered into the melt at a high velocity whereby the melt and the slag mix, the carbon being delivered to the melt until the oxygen content of the melt is less than or equal to about 250-400 ppm oxygen and the carbon content of the melt is greater than or equal to about 0.04-0.07% carbon. Recarburization of the melt is then effected in either the converter or a ladle whereby a melt containing as little oxygen as is reasonably possible and having a carbon content which is as close as possible to a pre-selected carbon content is achieved. the melt upon meeting such requirements is finally transferred to a ladle and treated both with ...

USE OF ARGON IN THE BASIC OXYGEN PROCESS TO CONTROL SLOPPING

D-12,298 USE OF ARGON IN THE BASIC OXYGEN PROCESS TO CONTROL SLOPPING . . Slopping of emulsion from the mouth of a basic oxygen refining vessel is prevented during oxygen refining by introducing inert gas into the vessel when slopping is imminent or has begun. The preferred method is to inject argon in admixture with oxygen through the oxygen lance at a flow rate of from 5 to 30 percent of the oxygen flow rate.

MAKING OF STEEL BY THE BOF PROCESS

The usual oxygen lance, and a coating lance, are disposed in upright and spaced-side-by-side relation for selective lowering into the BOF vessel when the latter is in the normal upright position it occupies for refinement of its metallic charge. Preferably, the coating lance is lowered into the vessel immediately after the latter has been charged with scrap and molten iron and moved to its upright position. At this time the oxygen lance is in standby position while refractory coating material is forced through the coating lance and outwardly of its nozzle to coat various areas of the vessel lining. Thereafter, the coating lance is withdrawn from the vessel and the oxygen lance is inserted and the refining process is begun. At this time, the coating lance is held in standby position.

PRODUCTION OF ULTRA LOW CARBON STEEL BY THE BASIC OXYGEN PROCESS

PRODUCTION OF ULTRA LOW CARBON STEEL BY THE BASIC OXYGEN PROCESS Low alloy steel having an ultra low carbon content is produced using the basic oxygen process wherein an inert gas is introduced into the melt when the melt has a carbon content below about 0.06 weight percent, the oxygen flowrate is adjusted to from 10 to 40 percent of the inert gas flow rate and the oxygen lance height is reduced to from 30 to 60 percent of the normal lance height.

METHOD FOR REFINING IRON BASE METAL

CONTROLLING OPERATION AND POSITION OF A LANCE AND NOZZLE ASSEMBLY IN A MOLTEN METAL BATH IN A VESSEL

The present invention preferably comprises a system and method for operating and/or positioning a lance and nozzle assembly relative to a molten metal bath in a vessel. Specifically, at least one temperature sensor is provided proximate a tip of the lance and nozzle assembly and at least one temperature sensor is provided on or in the vessel. A processing unit is configured to receive at least one signal from each of the temperature sensors, process the signals to determine the active position of the lance and nozzle assembly relative to the metal bath, and move the lance and nozzle assembly to a preferred position the corresponds to a stage of operation in the vessel.

MANGANES CONTROL

Verfahren zur Herstellung von technisch reinem Eisen durch Frischen von Roheisen.

Verfahren zum Herstellen von Stahl.

Procédé d'affinage pneumatique de la fonte

Verfahren zur Erzeugung eines phosphor- und schwefelarmen, hochkohlenstoffhaltigen Sondereisens

Verfahren zum Frischen von Metallen

Procédé de fabrication d'acier

Verfahren und Vorrichtung zur Durchführung chemischer oder physikalischer Vorgänge

Procédé de fabrication de l'acier

Procédé pour l'affinage de métaux

Verfahren zur Herstellung von Eisen oder Stahl

PROCEDE POUR LA FABRICATION D'UN ACIER.

Procédé d'affinage des métaux

Verfahren zum Frischen von Roheisen

Verfahren zum Frischen von Roheisen

Procédé d'affinage d'une charge métallique ferreuse

Verfahren zur Herstellung von Azofarbstoffen

Procédé pour la production de l'acier

Verfahren zur Herstellung von pharmazeutischen Verbindungen

Lance d'injection d'oxygène

Process for chemically heating a steel melt

In chemical heating of a steel melt, which has previously been brought to a defined carbon content by refining, it has been usual to add an agent giving a highly exothermic reaction. To avoid volcano-like eruptions, the agent is added to the melt in a quantity greater than that required for reaching the end temperature. At the same time, gaseous oxygen is fed in.

ФУРМЫ ДЛЯ ВВЕДЕНИЯ ГАЗА В ПОСУДИНУ

Фурма (26) для введения горячего газа в посудину (11) выполнена из трех модулей (26А, 26В и 26С) которые изготовлены отдельно и последовательно собираются и соединяются различными креплениями. Модуль (26А) фурмы является основным канальным модулем, который образует длинный канал (31), через который горячий газ устремляется в верхний участок посудины. Модуль (26В) фурмы является модулем для впускания газа, через который горячий газ устремляют в канал (31) модуля (26А). Модуль (26С) фурмы является центральным модулем, который имеет долгую центральную трубчатую конструкцию (33), которая проходит в канале (31) для протекания газа и имеет на своем нижнем конце ряд спиральных витков, которые образуют лопатки (34) для завихрения газового потока, выходящего из канала. Основной канальный модуль (26А) имеет крепежный фланец (110), который упирается во фланец (122) на посудине (11), а фланцы (110, 122) крепятся один к другому болтами (121). Модуль для впускания газа имеет нижний крепежный фланец ( ...

Preparation method of manganese low-silicon high-phosphorus molten iron and carbon-retaining manganese in converter smelting

Process for the refining of the cast iron as well as the pig iron and cast iron in conformity with those obtained by this process or similar process

Improvement with the steelmaking

Tuyere for a basic oxygen furnace

A tuyere comprising an inner tube including a lower section having a first diameter, an upper section having a second diameter smaller than the first diameter, and a converging transition section having a converging angle Θ from 15° to 35° connecting the lower section to the upper section, the inner tube terminating in an inner nozzle at a downstream end of the upper section; and an outer tube surrounding the inner tube so as to create an annulus there between, the outer tube including a lower section having a third diameter larger than the first diameter, an upper section having a fourth diameter smaller than the third diameter but larger than the second diameter, and a converging transition section having connecting the lower section to the upper section, the outer tube terminating in an outer nozzle at a downstream end of the upper section.

METHOD FOR REFINING HOT METAL IN CONVERTER

A method for refining hot metal in a converter using a top-blowing lance having a refining powder supply channel, a combustion oxidizing gas supply channel, and a refining oxidizing gas supply channel that are separate from each other includes supplying at least one of a lime-based flux, iron oxide, and a combustible material as a refining powder from the refining powder supply channel to a surface of the hot metal using a fuel gas or a mixture of the fuel gas and an inert gas as a carrier gas while supplying a combustion oxidizing gas from the combustion oxidizing gas supply channel to form a flame below a leading end of the top-blowing lance, and supplying a refining oxidizing gas from the refining oxidizing gas supply channel to the surface of the hot metal. 1. A method for refining hot metal in a converter using a top-blowing lance having a refining powder supply channel , a combustion oxidizing gas supply channel , and a refining oxidizing gas supply channel that are separate from each other , the method comprising supplying at least one of a lime-based flux , iron oxide , and a combustible material from the refining powder supply channel to a surface of the hot metal in the converter using a fuel gas or a mixture of the fuel gas and an inert gas as a carrier gas while supplying a combustion oxidizing gas from the combustion oxidizing gas supply channel to form a flame with the combustion oxidizing gas and the fuel gas below a leading end of the top-blowing lance , and supplying a refining oxidizing gas from the refining oxidizing gas supply channel to the surface of the hot metal in the converter.2. The method for refining hot metal in a converter according to claim 1 , wherein the volume fraction of the fuel gas in the carrier gas is 10% or more.3. The method for refining hot metal in a converter according to claim 1 , wherein the flow rate of the combustion oxidizing gas supplied from the combustion oxidizing gas supply channel is adjusted depending on the ...

CONVERTER

A converter for the production of steel by a blowing process from a substantially liquid raw material, in particular pig iron, includes several injectors which are dispersed in the sidewall of the converter about the converter inner circumference and directed towards the bath level for refining the pig iron. The injectors are designed as supersonic nozzle, which are surrounded by a ring nozzle forming an enveloping gas jet. The injectors are oriented at an angle of max. 43° in relation to the bath surface, with oxygen being introduced through the supersonic nozzle and a mixture of compressed air and natural gas being introduced through the ring nozzle. The jet pulse for the oxygen jet fed through the supersonic nozzle is dimensioned such that an infiltration of the oxygen jet into the melt bath is ensured. 16.-. (canceled)7. A converter for the production of steel by a blowing process from a substantially liquid raw material , said converter comprising:a vessel having a sidewall;a plurality of injectors dispersed in the sidewall about an inner circumference of the vessel and directed towards a bath level of a melt bath for refining the raw material, said injectors being embodied as supersonic Laval nozzle and oriented at an angle of max. 43° in relation to a bath surface for introducing an oxygen jet of oxygen into an interior of the vessel at supersonic speed which is greater than 1.5× the sound of speed, with a jet pulse for the oxygen jet fed through the supersonic nozzle being dimensioned such that an infiltration of the oxygen jet into the melt bath is ensured; anda ring nozzle surrounding the injectors and forming an enveloping gas jet, said ring nozzle being constructed to introduce a mixture of compressed air and natural gas into the interior of the vessel.8. The converter of claim 7 , wherein the raw material is pig iron.9. The converter of claim 7 , wherein the injectors are configured for a switching over to a burner mode with long flame and an injector ...

METHOD FOR OPERATING CONVERTER

When the decarburization refining of molten iron is performed by top-blowing oxygen gas from the top blowing lance, the oscillation of molten iron, a bubble burst, and spitting due to the bubble burst are suppressed. A refining method for a converter includes decarburizing molten iron in the converter with a top blowing lance having Laval nozzles disposed at the lower end thereof by blowing oxygen gas on the surface of the molten iron in the converter through the Laval nozzles, in which one or both of an oxygen feeding rate from the top blowing lance and lance height LH are adjusted in such a manner that an oxygen accumulation index S(F) is 40 or less. 2. The method for operating a converter according to claim 1 , wherein:an actual value of the oxygen accumulation index S(F) calculated from Formula (2) and an amount of unidentified oxygen are monitored during the blowing to determine the constant α,the amount of unidentified oxygen is defined by a difference between an amount of oxygen input and an amount of oxygen output,the amount of oxygen input is defined by a sum of: (i) an amount of the oxygen gas supplied from the top blowing lance and (ii) an amount of oxygen in an auxiliary raw material charged into the converter, and{'sub': 2', '2, 'the amount of oxygen output is defined by a sum of: (i) amounts of oxygen present as CO gas, COgas, and oxygen gas in an exhaust gas from the converter and (ii) an amount of oxygen consumed by a desiliconization reaction and present as SiOin the converter.'} This application relates to a method for operating a converter by blowing oxygen gas on hot metal through multiple Laval nozzles provided on a top blowing lance to produce molten steel from molten iron while preventing the spouting of the hot metal to the outside of the converter. The term “molten iron” used here refers to hot metal or molten steel. When hot metal and molten steel are clearly distinguishable from each other, “hot metal” or “molten steel” is used.In ...

TOP-BLOWING LANCE AND METHOD FOR REFINING MOLTEN IRON USING THE SAME

A top-blowing lance includes a refining oxygen gas blowing nozzle having a plurality of ejection openings through which oxygen gas is blown into an iron bath in a reaction vessel, the ejection openings being disposed along a circular orbit at intervals, and a burner nozzle having an axis coaxial with the central axis of the circular orbit, forming a flame inside the refining oxygen gas blowing nozzle, and having ejection openings for blowing a powder heated by the flame into the iron bath, wherein an indicator A that indicates the positional relationship between the ejection openings of the refining oxygen gas blowing nozzle and the ejection openings of the burner nozzle satisfies the specified conditions. 111.-. (canceled)12. A top-blowing lance having a burner function , comprising:a refining oxygen gas blowing nozzle having a plurality of ejection openings through which oxygen gas is blown into an iron bath in a reaction vessel, the ejection openings being disposed along a circular orbit at intervals; anda burner nozzle having an axis coaxial with the central axis of the circular orbit, forming a flame inside the refining oxygen gas blowing nozzle, and having ejection openings that blow a powder heated by the flame into the iron bath, {'br': None, 'i': A=', 'R−r−d/', 'L+, '1.7(2)/tan(θ−12°)−0.0524>0'}, 'wherein an indicator A that indicates a positional relationship between the ejection openings of the refining oxygen gas blowing nozzle and the ejection openings of the burner nozzle satisfieswhere R denotes a pitch circle radius of the ejection openings of the refining oxygen gas blowing nozzle (mm),r denotes a radius of the ejection openings of the burner nozzle (mm),d denotes a diameter of the ejection openings of the refining oxygen nozzle (mm),θ denotes an angle (inclination) between an axis of the refining oxygen gas blowing nozzle and a central axis of the circular orbit (°), andL denotes a lance height (mm).13. The top-blowing lance according to claim 12 , ...

CONVERTER STEELMAKING METHOD

A method of producing molten steel supplies gaseous oxygen from a top blowing lance into a converter to perform decarburization refining of molten iron while adding a CaO-containing powdery dephosphorizing agent to simultaneously decarburize and dephosphorize the molten iron and includes supplying the dephosphorizing agent to a bath surface of the molten iron together with at least one gas jet from the top blowing lance and a dynamic pressure determined when a gas jet blown from respective lance nozzles of the top blowing lance impinges onto the bath surface of the molten iron is controlled to not more than 0.50 kgf/cm. 16-. (canceled)7. A converter steelmaking method of producing molten steel by supplying gaseous oxygen from a top blowing lance into a converter to perform decarburization refining of molten iron while adding a CaO-containing powdery dephosphorizing agent to simultaneously decarburize and dephosphorize the molten iron , comprising supplying the dephosphorizing agent to a bath surface of the molten iron together with at least one gas jet from the top blowing lance and a dynamic pressure determined from formulae (1)-(4) when a gas jet blown from respective lance nozzles of the top blowing lance impinges onto the bath surface of the molten iron is controlled to not more than 0.50 kgf/cm:{'br': None, 'i': P=', '×ρg', 'U', '×de×P', '/Lh, 'sup': −11', '2, 'sub': 0', '0, '3.13×10×()\u2003\u2003(1)'}{'br': None, 'i': U', '/P, 'sub': 0', '0, 'sup': 2/7', '1/2, '=740(1−(1.033))\u2003\u2003(2)'}{'br': None, 'i': P', '=Fj', '×dt, 'sub': '0', 'sup': '2', '/(0.456)\u2003\u2003(3)'}{'br': None, 'i': g=ρj+Vp', 'Fj/, 'ρ/(60)\u2003\u2003(4)'}wherein{'sup': '2', 'P: dynamic pressure at a center of the jet exerted on the bath surface of the molten iron by the gas jet blown from the lance nozzle [kgf/cm]'}{'sup': '3', 'ρg: density of the gas jet [kg/Nm]'}{'sub': '0', 'U: velocity of the gas jet blown from the lance nozzle [m/sec]'}de: outlet diameter of the lance nozzle ...

METHODS FOR CONTROLLING THE POSITION OF FURNASE LANCES

Methods for controlling the position of a lance supplying oxygen to a furnace containing a bath of molten metal. The methods include the steps of continuously detecting actual conditions associated with the furnace, continuously comparing the actual conditions to target parameters corresponding to the actual conditions, and continuously adjusting the position of the lance with respect to the furnace based on the comparison of the actual conditions to the target parameters. 1. A method for controlling the position of a lance supplying oxygen to a furnace containing a bath of molten metal , comprising the steps of:evaluating a resistivity of the bath when the lance is electrically insulated with a first measuring device that detects resistance of the bath;continuously comparing the resistivity of the bath to a first resistivity target parameter corresponding to the resistance of the bath; andcontinuously adjusting the position of the lance with respect to the furnace based on the comparison of the resistivity of the bath to the first resistivity target parameter.2. The method of claim 1 , further comprising the steps of:evaluating a resistivity of the bath when the lance is not electrically insulated with a second measuring device that detects resistance of the bath;continuously comparing the resistivity of the bath to a second resistivity target parameter corresponding to the resistance of the bath; andcontinuously adjusting the position of the lance with respect to the furnace based on the comparison of the resistivity of the bath to the second resistivity target parameter.3. The method of claim 1 , further comprising the steps of:evaluating a furnace vibration frequency with a third measuring device that detects frequency of vibrations of the furnace;continuously comparing the furnace vibration frequency to a furnace vibration target parameter corresponding to the frequency of vibrations of the furnace; andcontinuously adjusting the position of the lance with ...

METHOD FOR OPERATING AN OXYGEN BLOWING LANCE IN A METALLURGICAL VESSEL AND A MEASUREMENT SYSTEM FOR DETERMINING A MEASUREMENT SIGNAL USED IN THE METHOD

A method for operating a blowing lance for blowing a gas in a metallurgical vessel, wherein the head of the blowing lance includes at least one supersonic nozzle, operating parameter measurement signals used for the purpose of process control are continuously acquired. The inlet pressure and/or the inlet temperature of the gas at the supersonic nozzle and/or the vibration amplitude and/or the vibration frequency of the blowing lance and/or the time at which ignition occurs during the oxygen blowing process and/or the location at which ignition occurs during the oxygen blowing process is detected and/or measured in the head of the lance by a detector or sensor arranged in the head of the lance near the supersonic nozzle during operation of the blowing lance. The measurement signal(s) are transmitted to a control unit connected to the detector or sensor and made available for controlling the operation of the blowing lance. 1. A method for operating a blowing lance for blowing a gas in a metallurgical vessel , wherein a replaceable head of the blowing lance comprises at least one supersonic nozzle , the method comprising the steps of: detecting and/or measuring inlet pressure and/or inlet temperature of the gas at the at least one supersonic nozzle and/or vibration amplitude and/or vibration frequency of the blowing lance and/or a time at which ignition occurs during an oxygen blowing process and/or a location at which ignition occurs during the oxygen blowing process , in the head of the lance with a detector or sensor arranged in the head of the lance in an area of the supersonic nozzle during operation of the blowing lance; and transmitting measurement signal(s) thus acquired during the operation of the blowing lance , to an evaluation and/or process control unit connected to the detector or sensor and making the signals available for controlling the operation of the blowing lance.2. The method according to claim 1 , wherein the inlet pressure of the gas at an ...

Methods for producing improved steels by injecting iron containing by-products of an iron ore production process into liquid steel

Disclosed herein are methods and compositions for producing improved steels comprising injecting iron containing by-products of an iron ore production process into a liquid steel, wherein the iron containing by-products of an iron ore production process further comprise direct reduced iron (DRI) fines. The resulting improved steel exhibits lower nitrogen content than one measured for a substantially identical reference composition produced in the absence of the direct reduced iron fines.

Method and apparatus for controlling the pressure in the exhaust gas duct of a converter

The invention relates to a method and an apparatus for controlling the pressure in the exhaust gas duct of a converter in a steel mill using a pressure control loop. To optimize the defined pressure setpoint for the pressure control loop so as to prevent excessive amounts of outside air from being drawn in via the converter mouth, the pressure setpoint is determined according to the invention by adapting a raw value based on the extent to which smoke or flames is/are formed at the mouth () of the converter (). 112-. (canceled)13110100. A method for controlling pressure in an exhaust gas duct () of a converter () in a steel mill to a defined pressure setpoint by the appropriate adjustment of control variables , characterized by the following steps for determining the pressure setpoint:{'b': 122', '120, 'defining a raw value for the pressure setpoint dependent on a measured degree of openness of an adjustment ring () at a converter mouth (), and'}{'b': '120', 'determining the pressure setpoint by adaptation of the raw value in form of an increase of the raw value when an extent of smoke or flame formation at the mouth () of the converter is reduced, and vice versa.'}14120. The method according to claim 13 , characterized in that the extent of smoke and flame formation is determined by analyzing image material that shows the current smoke and flame formation at the mouth () of the converter during a converter operation.15. The method according to claim 14 , characterized in that claim 14 , in the image material analysis claim 14 , essentially only portions in the infrared spectral range are analyzed claim 14 , while interference signals in the visible spectral range are suppressed.16. The method according to claim 13 , characterized in that the raw value is further adapted so that the raw value is decreased when the quantity of oxygen that is supplied is increased claim 13 , and vice versa.17112112114. The method according to claim 13 , characterized in that the ...

CONTROLLING OPERATION AND POSITION OF A LANCE AND NOZZLE ASSEMBLY IN A MOLTEN METAL BATH IN A VESSEL

The present invention preferably comprises a system and method for operating and/or positioning a lance and nozzle assembly relative to a molten metal bath in a vessel. Specifically, at least one temperature sensor is provided proximate a tip of the lance and nozzle assembly and at least one temperature sensor is provided on or in the vessel. A processing unit is configured to receive at least one signal from each of the temperature sensors, process the signals to determine the active position of the lance and nozzle assembly relative to the metal bath, and move the lance and nozzle assembly to a preferred position the corresponds to a stage of operation in the vessel. 1. A method for operating and/or positioning a lance and nozzle assembly relative to a molten metal bath in a vessel , the method comprising:providing a first temperature sensor proximate to a tip of the lance and nozzle assembly, wherein the first temperature sensor is housed by the lance and nozzle assembly, wherein the first temperature sensor is configured to detect a temperature of the tip of the lance and nozzle assembly, and wherein the temperature is converted to tip temperature data;providing a second temperature sensor on or within the vessel, wherein the second temperature sensor is configured to detect a temperature of the molten metal bath, and wherein the temperature is converted to bath temperature data;transmitting the tip temperature data and the bath temperature data to a processing unit;exchanging information between the processing unit and a process operations data module, wherein the information comprises the tip temperature data, the bath temperature data, and process operations data;mapping the tip temperature data and the bath temperature data to a corresponding active elevation of the lance and nozzle assembly;comparing the active elevation to a preferred elevation of the lance and nozzle assembly; andmoving the lance and nozzle assembly from the active elevation to the ...

PROCESS FOR INJECTING PARTICULATE MATERIAL INTO A LIQUID METAL BATH

The invention relates to a process for injecting particulate material into a liquid metal bath wherein the liquid metal bath contains species to be oxidized, wherein the particulate material is carried to the liquid bath by means of a first gas stream. The solids injection rate is controlled such that the liquid bath temperature and/or the evolution of the liquid bath temperature is maintained within a pre-defined temperature range and the penetration depth of the first gas stream into the liquid bath is controlled by adjusting the flow of the first gas stream. At least one second gas stream is injected into the liquid, wherein the first and the second gas streams are an oxidizing gas, in particular oxygen, and the sum of the gas flows of the first and the second gas streams is determined based on the mass of the species to be oxidized and on the desired time for oxidizing the mass of the species. 2. Process according to claim 1 , characterized in that the lance is provided at a lance height above the liquid bath claim 1 , the lance height being defined as the distance in axial direction between the outlet of the solids injection pipe and the surface of the liquid bath claim 1 , and that the penetration depth of the first gas stream is controlled by adjusting the lance height and/or the flow of the first gas stream.3. Process according to claim 1 , characterized in that the first gas stream is provided at a velocity between 340 m/s and 1100 m/s claim 1 , preferably between 500 m/s and 900 m/s.4. Process according to claim 1 , characterized in that the second gas streams are provided at a velocity between 340 m/s and 1100 m/s claim 1 , preferably between 500 m/s and 900 m/s.5. Process according to claim 1 , characterized in that the penetration depth is less than 75% of the depth of the liquid bath claim 1 , preferably less than 50% of the depth of the liquid bath claim 1 , more preferred less than 25% of the depth of the liquid bath.6. Process according to claim 1 , ...

METHOD FOR OXYGEN-BLOWING REFINING OF MOLTEN IRON AND TOP-BLOWING LANCE

In a method for oxygen-blowing refining of molten iron, an oxygen-containing gas as a main supply gas is supplied from an inlet side of a blowing nozzle for the oxygen-containing gas passing through an outer shell of the top-blowing lance and blown from the blowing nozzle while a control gas is jetted toward inside of the blowing nozzle for at least part of a period of the oxygen-blowing refining from a spout arranged in a side face of the nozzle at a site where the cross-sectional area of the nozzle minimum takes the minimum in the axial direction of the nozzle or a neighborhood thereof so that at least part of the spout exists in each space formed by dividing into two portions by an arbitrary plane passing through a central axis of the nozzle. 1. A method for oxygen-blowing refining of molten iron by blowing an oxygen-containing gas from a top-blowing lance onto molten iron charged in a reaction vessel to conduct oxygen-blowing refining of the molten iron , characterized in thatthe oxygen-containing gas as a main supply gas is supplied from an inlet side of a blowing nozzle for the oxygen-containing gas passing through an outer shell of the top-blowing lance and blown from the blowing nozzle while a control gas is jetted toward inside of the blowing nozzle for at least a part of a period of the oxygen-blowing refining from a spout arranged in a side face of the nozzle at a site where a cross-sectional area of the nozzle takes the minimum in the axial direction of the nozzle or a neighborhood thereof so that at least a part of the spout exists in each space formed by dividing the nozzle into two by an arbitrary plane passing through a central axis of the nozzle.2. The method for oxygen-blowing refining of molten iron according to claim 1 ,wherein the neighborhood of the site where the cross-sectional area of the nozzle takes the minimum in the axial direction of the nozzle is a site where the cross-sectional area of the nozzle is not more than 1.1 times of the ...

Lance for refining

Method and system for delivering gas and granular material for melting facility

FIELD: metallurgy. SUBSTANCE: invention relates to metallurgy and can be used for loading of granular material in melting facility through a tuyere system. Device contains a metallurgic tuyere with inner bore communicated with the tuyere head and tuyere collector, inlet pipe for granular material, auxiliary pipe for gas-carrier, outer pipe with its first end freely communicated with inner barrel in the tuyere collector and its second end tightly coupled with the outer side of inlet pipe for granular material, the first part of inlet pipe is located coaxially to the outer pipe, and on the second part protruding from the external pipe there is a shut-off valve, the first end of the auxiliary pipe for carrier gas is freely connected to the outer pipe, at the second end there is at least one pressure control valve, the first end of the auxiliary pipe is located between the place of sealed joint of the external pipe with inlet pipe for granular material and the first end of said inlet pipe. EFFECT: invention allows to reduce time of heating in the process related to optimization of the rate of dissolution lime additive, service life of the tuyere head is extended, since lime will protect the head from the bath radiation. 14 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 598 429 C2 (51) МПК C21C 5/46 (2006.01) C21C 5/28 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013153157/02, 30.04.2012 (24) Дата начала отсчета срока действия патента: 30.04.2012 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ВАЙТ, Якоб, Й. (US), ВАЛЕНТАС, Луис, С. (US), СМИТ, Тодд, Г. (US) 29.04.2011 US 61/480,982 (43) Дата публикации заявки: 10.06.2015 Бюл. № 16 R U (73) Патентообладатель(и): БЕРРИ МЕТАЛ КАМПАНИ, США (US) (45) Опубликовано: 27.09.2016 Бюл. № 27 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.11.2013 (86) Заявка PCT: 2 5 9 8 4 2 9 (56) Список документов, цитированных в отчете о ...

Procédé et appareil pour introduire un courant de gaz de traitement dans un bain de métal en fusion

금속및금속합금제조방법및그장치

본 발명에 따르면, 금속층및 용재층을 갖는 용융조를 포함하는 야금 용기내에서 금속 산화물로 부터 금속및 금속 합금을 제조하는 방법및 그 장치가 개시된다. 상기 방법은 캐리어 가스및 고체 탄소함유 물질및/또는 금속 산화물및/또는 다른 고체 물질이 용융조에 침투하여 용탕(鎔湯)이 상기 용융조의 표면위의 가스 공간속으로 방출되어 전이 구역이 형성될 수 있도록 상기 캐리어 가스및 고체 탄소함유 물질및/또는 금속 산화물및/또는 다른 고체 물질을 상기 용융조와 접촉및/또는 상기 용융조위로 부터 접촉하는 상기 야금 용기의 측단면부위를 통해 상기 용융조의 내부로 주입하는 것에 그 특징이 있다. 또한, 상기 방법은 상기 용융조로 부터 전이 구역속으로 방출된 반응 가스를 후연소(後燃燒)시키기 위해 산소 함유 가스를 가스 공간속으로 주입하는 것에 그 특징이 있다.

金属および金属合金を製造する方法

(57)【要約】 金属層およびスラグ層を有する溶融浴を収容する冶金容器において、金属酸化物から金属および金属合金を製造する方法および装置が開示される。この方法は、遷移領域を形成するために、固体が溶融浴を貫通して溶融浴の上方のガス空間内に溶融金属を放出させるように、搬送ガスおよび固体炭素質材料および／または金属酸化物を溶融浴に接触する前記容器の側部から、または溶融浴の上方から、溶融浴中に送入することによって特徴づけられる。また、この方法は、遷移領域内に溶融浴から放出される反応ガスを再燃焼するように酸素含有ガスをこのガス空間内に送入することによって特徴づけられる。

Manufacturing apparatus for molten metal and method thereof

본 발명은 강의 제조 장치 및 그 방법에 관한 것으로, 정련 용기에 장입된 용선을 정련하여 강을 제조하는 방법으로서, 공기에 산소를 혼합하는 1차 산소부화 과정과; 상기 산소가 혼합된 공기를 열풍로에서 가열하여 열풍을 제조하는 과정과; 상기 열풍로에서 제조된 열풍을 상기 열풍로에 연결되는 열풍 공급배관으로 배출하는 과정과; 상기 열풍 공급배관에 산소를 공급하여 상기 열풍에 산소를 혼합하는 2차 산소부화 과정과; 상기 산소가 혼합된 열풍을 상기 열풍 공급배관에 연결되는 랜스를 통해 상기 정련 용기에 취입하는 과정;을 포함하여, 제강공정에서 발생하는 배가스량을 저감시키고, 원료를 용해시키는데 필요한 열원을 확보할 수 있다.  The present invention relates to an apparatus and a method for manufacturing steel, and a method for manufacturing steel by refining a molten iron charged in a refining vessel, comprising: a primary oxygen enrichment process for mixing oxygen with air; Heating the air mixed with oxygen in a hot air furnace to produce hot air; Discharging hot air produced in the hot air path to a hot air supply pipe connected to the hot air path; A secondary oxygen enrichment process for supplying oxygen to the hot air supply pipe to mix oxygen with the hot air; And a step of blowing the hot air mixed with the oxygen into the refining vessel through a lance connected to the hot air supply pipe, thereby reducing the amount of exhaust gas generated in the steelmaking process and securing a heat source necessary for dissolving the raw material have.

Method for intensifying the reactions in metallurgical reaction vessels

본 발명은 배스 표면의 상부 및 하부로 반응제가 공급되는 용융배스를 포함하는 야금반응용기 내의 반응을 증대시키는 방법에 관한 것으로, 금속 배스로부터 새어나온 가스는 이 가스공간으로 주입된 산화 가스에 의하여 용융물 상부의 공간에서 재연소되고, 그 결과 발생된 열은 용융 배스로 전달되며, 이것에 의하여 방울, 비말 또는 용융물의 커다란 입자의 형태로서 용융물의 파편은 상기 야금 반응 용기의 가스 공간으로 탄도 궤도를 따라서 이동하여, 하부배스 송풍관을 경유하여 유도된 가스양을 통하여 분수처럼 용융물로부터 분출된다 . The present invention relates to a method of augmenting a reaction in a metallurgical reaction vessel including a molten bath in which a reactant is supplied to the upper and lower portions of the bath surface, wherein the gas leaked from the metal bath is melted by the oxidizing gas injected into the gas space. Reburned in the upper space, and the resulting heat is transferred to the molten bath, whereby fragments of the melt in the form of droplets, droplets or large particles of the melt follow the ballistic trajectory into the gas space of the metallurgical reaction vessel. It moves and is ejected from the melt like a fountain through the amount of gas induced via the lower bath blower.

Manufacturing apparatus for molten metal and method thereof

The present invention relates to a manufacturing apparatus for steel and a method thereof, wherein the method comprises the following steps of: preparing a scrap; putting the scrap into a refining container; inserting molten iron into the refining container; and injecting gas having hot air and oxygen with a lance provided in an upper portion of the refining container. Therefore, a heat source required for melting the scrap can be effectively secured to improve productivity.

Blowing method for converter

用以注入固態顆粒材料至一容器的裝置

Device for injecting gas into a container

Device for injecting gas into a container

A method for manufacturing steel using returned molten steel

본 발명은 전로조업을 통한 강의 제조에 관한 것이며; 그 목적은 전회(前回) 전로정련후 회송된 용강을 전로에 재장입하여 정련할 때 보다 적절한 취련패턴을 설정하므로써 슬래그의 재화를 용이하게 하면서 슬로핑을 방지하여 최종 소강중의 [P] 성분을 안정적으로 가져갈 수 있는 강의 제조방법을 제공함에 있다. The present invention relates to the production of steel through converter operation; Its purpose is to set the appropriate blow pattern when reloading the molten steel returned to the converter after the previous converter refining, thereby facilitating slag goods while preventing the sling, thereby reducing the [P] component in the final steel sheet. The present invention provides a method for manufacturing steel that can be stably taken. 상기 목적달성을 위한 본 발명은 전회(前回)에서 정련된 후 회송된 용강중의 용존산소를 20ppm이하로 탈산하여 전로에 장입하는 단계; 전회에서 정련할 때 실시된 말기 취련시의 산소랜스 높이와 동등하거나 적어도 12% 이내에서 상향된 높이로 산소랜스를 조정하고, 또한 전회에서 정련 실시된 말기 유량보다 송산유량을 10~ 35% 하향하여 상기에서 장입된 회송용강에 송산하여 취련하는 단계; 및 상기 취련 개시 직후에 용강중에 생석회를 투입함과 동시에 전체 투입될 소결광 중 먼저 20~ 50%의 소결광을 투입하고 나서 나머지 소결광을 취련진행 60%까지 전부 투입하는 단계를 포함하여 구성되는 회송용강을 이용한 강의 제조방법에 관한 것을 그 기술적 요지로 한다. The present invention for achieving the above object is a step of deoxidizing dissolved oxygen in the molten steel that is returned after refining in the last time to 20ppm or less charged to the converter; Adjust the oxygen lance to a height that is equal to or higher than at least 12% of the oxygen lance at the last stage of refining at the last refining, and lowers the flow rate by 10 to 35% from the last flow at the last refining. Transmitting to the revolving molten steel charged in the above; And immediately after the start of the injection of the quick-lime in the molten steel and at the same time the first sintered ore of 20 to 50% of the sintered ore to be added to all the sintered molten steel comprising the step of injecting the remaining sintered ore up to 60% The technical gist of the manufacturing method of the used steel is taken.

Method of refining molten steel

The present invention relates to a method to refine molten steel, comprising: a step of completing discharging of molten steel produced during a previous operation from a converter; a foreblowing step of blowing oxygen into the converter to elute sulfur (S) contained in a slag attached to the refractories; a step of excluding the slag produced during the foreblowing step, charging molten steel and an auxiliary material into the converter; a molten steel blowing step of blowing oxygen to the charged molten steel to blow molten steel; a step of excluding the slag produced during the molten steel blowing step, completing discharging of molten ingot steel from the converter wherein in the step of blowing molten steel, an oxygen flow rate and a height of a lance are varied by stages as time for blowing oxygen passes. As such, in accordance with an embodiment of the present invention, since sulfur (S) included in the molten steel and the auxiliary material are able to effectively be controlled, ingot steel required to contain an extremely small quantity of sulfur (S) is easily manufactured.

Method of cooling range exhaust gas of metallurgic furnace and its cooling circuit

DEVICE FOR INJECTION OF SOLID BULK MATERIAL INTO CAPACITY

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2005 123 681 (13) A (51) ÌÏÊ F27D 3/16 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2005123681/02, 25.07.2005 (71) Çà âèòåëü(è): ÒÅÊÍÎËÎÄÆÈÊÀË ÐÅÑÎÐÑÈÇ ÏÒÈ ËÈÌÈÒÅÄ (AU) (30) Êîíâåíöèîííûé ïðèîðèòåò: 27.07.2004 AU 2004904199 30.12.2004 AU 2004907375 R U (57) Ôîðìóëà èçîáðåòåíè 1. Ìåòàëëóðãè÷åñêà ôóðìà, ïðîõîä ùà âíóòðü åìêîñòè è ïðåäíàçíà÷åííà äë èíæåêöèè òâåðäîãî ñûïó÷åãî ìàòåðèàëà â íàõîä ùèéñ â åìêîñòè ðàñïëàâëåííûé ìàòåðèàë, ñîäåðæàùà öåíòðàëüíóþ âíóòðåííþþ òðóáó, ïî êîòîðîé ïðîõîäèò òâåðäûé ñûïó÷èé ìàòåðèàë; êîëüöåâóþ îõëàæäàþùóþ ðóáàøêó, îêðóæàþùóþ öåíòðàëüíóþ âíóòðåííþþ òðóáó ïî ñóùåñòâåííîé ÷àñòè åå äëèíû è èìåþùóþ âíóòðåííèå êàíàëû, ïî êîòîðûì ïðîòåêàåò îõëàæäàþùà âîäà, è âíåøíþþ êîëüöåâóþ ÷àñòü, ðàñïîëîæåííóþ âîêðóã êîëüöåâîé îõëàæäàþùåé ðóáàøêè â ïîëîæåíèè, óäàëåííîì îò ïåðåäíåãî êîíöà ôóðìû, èìåþùóþ âíóòðåííèå êàíàëû, ïî êîòîðûì òå÷åò îõëàæäàþùà âîäà. 2. Ôóðìà ïî ï.1, îòëè÷àþùà ñ òåì, ÷òî âíåøí êîëüöåâà ÷àñòü öèëèíäðè÷åñêà . 3. Ôóðìà ïî ï.2, îòëè÷àþùà ñ òåì, ÷òî íàðóæíûé äèàìåòð öèëèíäðè÷åñêîé âíåøíåé êîëüöåâîé ÷àñòè ïî ìåíüøåé ìåðå â 1,5 ðàçà ïðåâûøàåò íàðóæíûé äèàìåòð êîëüöåâîé îõëàæäàþùåé ðóáàøêè. 4. Ôóðìà ïî ï.3, îòëè÷àþùà ñ òåì, ÷òî íàðóæíûé äèàìåòð öèëèíäðè÷åñêîé âíåøíåé êîëüöåâîé ÷àñòè ïðèáëèçèòåëüíî â äâà ðàçà ïðåâûøàåò íàðóæíûé äèàìåòð êîëüöåâîé îõëàæäàþùåé ðóáàøêè. 5. Ôóðìà ïî ï.1, îòëè÷àþùà ñ òåì, ÷òî âíåøí êîëüöåâà ÷àñòü ïîñðåäñòâîì ïåðåäíèõ è çàäíèõ êîëüöåâûõ ñîåäèíèòåëåé îòäåëåíà ðàäèàëüíî íàðóæó îò êîëüöåâîé îõëàæäàþùåé ðóáàøêè, ïðè ýòîì ìåæäó âíåøíåé êîëüöåâîé ÷àñòüþ è îõëàæäàþùåé ðóáàøêîé îáðàçîâàíî êîëüöåâîå ïóñòîå ïðîñòðàíñòâî. 6. Ôóðìà ïî ï.1, îòëè÷àþùà ñ òåì, ÷òî ïåðåäíèé êîíåö âíåøíåé êîëüöåâîé ÷àñòè íàêëîíåí ïîä îñòðûì óãëîì ê öåíòðàëüíîé ïðîäîëüíîé îñè ôóðìû. 7. Ôóðìà ïî ï.6, îòëè÷àþùà ñ òåì, ÷òî ïåðåäíèé êîíåö êîëüöåâîé ÷àñòè çàêðûò îãíåóïîðíûì ìàòåðèàëîì. 8. Ôóðìà ïî ï.7, îòëè÷àþùà ñ òåì, ÷òî îãíåóïîðíûé ...

Lance head structure and method for double-oxygen-flow adjustment of top blowing oxygen flow rate of converter

本发明提供一种双路氧流调节转炉顶吹氧流量的枪头结构及方法。采用双路氧流通道，主氧流保证氧枪的超音速射流，副氧流保证在一定范围内连续调节供氧量。枪头结构包括多层同心套管和多功能喷头，主氧流通过喷头上的拉瓦尔型喷口和环槽缝喷口以超音速恒流量射入转炉，副氧流通过的中心管穿过喷头中心直接将氧气以亚音速变流量送入转炉，副氧流还可以携带转炉炼钢用粉剂在环槽缝氧流的裹挟下送入转炉而不影响主氧流的马赫数，并且获得较高的粉剂利用率。

The system and method for the gas and microgranule conveying for metallurgical tank

一种用于通过喷枪将例如生石灰的微粒与例如氧气的载体气体一起充入冶金容器或炉的方法和装置，该装置包括：冶金喷枪，该冶金喷枪具有内筒，该内筒与所述喷枪的端头以及所述喷枪的头部相连通；外管，该外管具有第一端和第二端，该第一端在所述头部处与所述内筒开放连通，所述第二端在微粒入口管的外侧密封；该微粒入口管具有从所述外管的第二端同轴地在所述外管内部延伸的第一部，以及在所述外管的外侧延伸的第二部，所述微粒入口管的所述第二部具有截止阀；辅助气体管，在所述外管内，该辅助气体管与位于微粒入口管开口上游的所述外管连通。

Melting method of low phosphorus steel in oxygen top blowing steel making method

Method for controlling fracture of ship plate steel tensile sample not to be layered

本发明的实施例提供了一种控制船板钢拉伸试样的断口不出现分层的方法，涉及船板钢材料领域。旨在改善船板钢拉伸试样断口质量。控制船板钢拉伸试样的断口不出现分层的方法包括所述船板钢拉伸试样的偏析敏感系数Σ 敏感指数 的范围为：Σ 敏感指数 ＝10P+2S+(Als+As+Sn+Cu+Sb+Ni+Cr)≤0.38％。微量元素在钢水冷却过程中容易发生偏聚，产生偏析现像，按其起作用大小，可用Σ 敏感指数 来评价，Σ 敏感指数 控制在≤0.38％，则降低了船板钢拉伸试样出现断口分层缺陷的概率，能够改善船板钢拉伸试样断口质量。

Dephosphorization production process for H08A series steel

本发明公开了一种H08A系列钢种脱磷生产工艺，其包括如下步骤：兑铁加料：在兑铁前加入白灰，随废钢加入氧化铁皮或烧结返矿进行垫料；兑铁结束开始吹炼时，加入氧化铁皮，以及部分辅料轻烧白云石；造渣脱磷：在氧枪吹炼过程中，加入白灰，前期碱度控制在1.5～1.7范围内，后期碱度控制在2.5～2.8范围内，合理控制枪位，并结合双渣操作进行脱磷。本发明所涉及的技术方案能够达到超低磷的标准，同时冶炼过程中石灰用量在可控范围内，具有吹损减少、钢铁料消耗降低、转炉终点一次命中率提高、能够延长炉衬寿命等良好效果。

DEVICE FOR GAS INJECTION IN THE RESERVOIR

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2005 131 909 (13) A (51) ÌÏÊ F27D C21B C21B C21C 3/16 (2006.01) 11/00 (2006.01) 13/00 (2006.01) 5/46 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2005131909/02, 14.10.2005 (71) Çà âèòåëü(è): ÒÅÊÍÎËÎÄÆÈÊÀË ÐÅÑÎÐÑÈÇ ÏÒÈ ËÈÌÈÒÅÄ (AU) (30) Êîíâåíöèîííûé ïðèîðèòåò: 15.10.2004 AU 2004906004 (43) Äàòà ïóáëèêàöèè çà âêè: 20.04.2007 Áþë. ¹ 11 A 2 0 0 5 1 3 1 9 0 9 R U Ñòðàíèöà: 1 RU A (57) Ôîðìóëà èçîáðåòåíè 1. Óñòðîéñòâî äë èíæåêòèðîâàíè ãàçà â ðåçåðâóàð, â êîòîðîì ïðåäóñìîòðåíû êàíàë äë ïîòîêà ãàçà, ïðîõîä ùèé îò çàäíåãî êîíöà óñòðîéñòâà ê ïåðåäíåìó êîíöó, ÷åðåç êîòîðûé èç êàíàëà îòâîäèòñ ãàç; óäëèíåííîå öåíòðàëüíîå óñòðîéñòâî, ïðîõîä ùåå âíóòðè êàíàëà äë ïîòîêà ãàçà îò åãî çàäíåãî êîíöà ê ïåðåäíåìó êîíöó; ìíîæåñòâî íàïðàâë þùèõ ïîòîê ëîïàñòåé, ðàñïîëîæåííûõ âîêðóã öåíòðàëüíîãî óñòðîéñòâà ð äîì ñ ïåðåäíèì êîíöîì êàíàëà äë ïðèäàíè çàâèõðåíè ïîòîêó ãàçà, ïðîõîä ùåìó ÷åðåç ïåðåäíèé êîíåö êàíàëà; ïðîõîäû äë ïîäâîäà è îòâîäà îõëàæäàþùåé âîäû, ïðîõîä ùèå ÷åðåç ñòåíêó êàíàëà îò çàäíåãî êîíöà ê ïåðåäíåìó êîíöó êàíàëà äë ïîòîêà ãàçà è îáåñïå÷èâàþùèå ïîäâîä è îòâîä îõëàæäàþùåé âîäû â ïåðåäíèé êîíåö êàíàëà; è êîëüöåâóþ ãîëîâêó êàíàëà, ðàñïîëîæåííóþ íà ïåðåäíåì êîíöå êàíàëà è èìåþùóþ âíóòðåííèé ïðîõîä äë îõëàæäàþùåé âîäû, ñîåäèíåííûé ñ ïðîõîäàìè äë ïîäâîäà è îòâîäà îõëàæäàþùåé âîäû äë îõëàæäåíè ãîëîâêè êàíàëà èçíóòðè; ïðè ýòîì íàïðàâë þùèå ïîòîê ëîïàñòè óñòàíîâëåíû íà öåíòðàëüíîì óñòðîéñòâå òàê, â íàïðàâëåíèè ïåðåäíåãî êîíöà êàíàëà è ãîëîâêå êàíàëà, è èìåþò òàêèå ðàçìåðû, ÷òî âî âðåì ðàáîòû èõ ïåðåäíèå êîíöû âõîä ò â êîíòàêò è îïèðàþòñ íà îõëàæäàåìóþ âîäîé èçíóòðè ãîëîâêó êàíàëà. 2. Óñòðîéñòâî ïî ï.1, â êîòîðîì ëîïàñòè ïðîõîä ò âäîëü öåíòðàëüíîãî óñòðîéñòâà îò çàäíåãî êîíöà, ðàñïîëîæåííîãî â çàäíåì íàïðàâëåíèè îò ãîëîâêè êàíàëà, ê ïåðåäíåìó åãî êîíöó, ðàñïîëîæåííîìó âíóòðè ýòîé ãîëîâêè. 3. Óñòðîéñòâî ïî ï.1 èëè 2, â êîòîðîì ïåðåäíèå êîíöû ëîïàñòåé îêàí÷èâàþòñ ...

Dephosphorization accelerating method in oxygen top blowing steel making method

Tuyere for feeding raw material and method for introducing solid raw materials into metallurgical vessel

FIELD: metallurgy. SUBSTANCE: tuyere 5 has inlet opening 21 for introducing raw material therein, outlet opening 23 formed in front end of tuyere 5 and adapted for discharge of raw materials, hollow elongated member 25 defining raw material channel 33 positioned between inlet opening 21 and outlet opening 23 and including at least two channels for first coolant, and outer cooling jacket 35 extending up to tuyere front end. Cooling jacket 35 is closed at its front end to form annular chamber for second coolant. Hollow elongated member protrudes beyond outer jacket near tuyere front end. Coolant channel remotest from center is made in the form of annular gap between outer wall of hollow elongated member and inner wall of outer jacket and is provided with device for supporting hollow elongated member so that it may be moved relative to outer jacket lengthwise of tuyere to keep outer jacket and hollow elongated member in their initial relative positions in the vicinity of tuyere front end. Method for introducing solid raw materials into metallurgical vessel involves using said tuyere. EFFECT: simplified construction and increased service life of tuyere. 12 cl, 2 dwg Еэ6бз0сс ПЧ сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2 203 961 ' С 21С 5/48, 5/32, Е 270 3/18 (51) МПК” 13) С2 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 9910302202, 11.07.1997 (24) Дата начала действия патента: 11.07.1997 (30) Приоритет: 12.07.1996 АЦ РО 0959 (46) Дата публикации: 10.05.2003 (56) Ссылки: ЕР 0597270 А2, 18.05.1994. $ 5308043, 03.05.1994. $Ц 441289, 03.06.1975. $4 1528796 АЛ, 15.12.1989. КУ 2057814 СУ, 10.04.1996. ОЕ 3508618 АЛ, 18.05.1986. АЦ 24505/92 А, 25.03.1993. ($ 4023616 А, 17.05.1977. ОЕ 3637533 АЛ, 05.05.1988. ЕР 0035451 АЛ, 09.09.1981. (85) Дата перевода заявки РСТ на национальную фазу: 12.02.1999 (86) Заявка РСТ: АЧ 97/00441 (11.07.1997) (87) Публикация РСТ: М/О 98/02588 (22.01.1998) (98) Адрес для переписки: 129010, Москва, ул. ...

Apparatus for evaluating molten metal components, method for evaluating molten metal components and method for producing molten metal

FIELD: metallurgy. SUBSTANCE: invention relates to metallurgical production and can be used in evaluating concentration of components of molten steel in a refining plant. Device comprises a spectrometer installed outside the neck of the converter of the refining plant with the possibility of receiving radiation coming from the neck of the converter, and configured to measure the rate of change in the intensity of the radiation spectrum resulting from the reduction reaction of iron oxide in the slag during the oxygen blowing process, an input device, a database of models of the reaction of the oxygen blowing process, model calculation unit configured to estimate concentrations of molten steel components, and a model determining unit configured to estimate the carbon concentration in the molten steel based on said measurement information and determine the formula and model parameters for use by the model computing unit. Invention covers also the method of evaluation and production of molten steel. EFFECT: use of inventions makes it possible to increase accuracy of estimation of carbon concentration in steel. 3 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 766 093 C1 (51) МПК C21C 5/30 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C21C 5/30 (2021.08) (21)(22) Заявка: 2020140778, 03.04.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 07.02.2022 14.05.2018 JP 2018-092754 (56) Список документов, цитированных в отчете о поиске: JP 2017089001 A, 25.05.2017. RU 2180951 C1, 27.03.2002. RU 2539501 С2, 20.01.2015. CN 205024254 U, 10.02.2016. JPS 6267430 A, 27.03.1987. JPS 6318012 A, 25.01.1988. JP 2017115216 A, 29.06.2017. (45) Опубликовано: 07.02.2022 Бюл. № 4 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 14.12.2020 (86) Заявка PCT: 2 7 6 6 0 9 3 R U (87) Публикация заявки PCT: WO 2019/220800 (21.11.2019) Адрес для переписки: 101000, Москва, ул. Мясницкая, 13, стр. 5, ООО ...

Gas and particulate delivery system and method for metallurgical vessel

一种用于通过喷枪将例如生石灰的微粒与例如氧气的载体气体一起充入冶金容器或炉的方法和装置，该装置包括：冶金喷枪，该冶金喷枪具有内筒，该内筒与所述喷枪的端头以及所述喷枪的头部相连通；外管，该外管具有第一端和第二端，该第一端在所述头部处与所述内筒开放连通，所述第二端在微粒入口管的外侧密封；该微粒入口管具有从所述外管的第二端同轴地在所述外管内部延伸的第一部，以及在所述外管的外侧延伸的第二部，所述微粒入口管的所述第二部具有截止阀；辅助气体管，在所述外管内，该辅助气体管与位于微粒入口管开口上游的所述外管连通。

A method of operating converter without slopping

본 발명은 전로조업에 관한 것이며; 그 목적은 슬로핑(slopping)이 발생되지 않는 안정적인 전로 조업방법을 제공함에 있다. The present invention relates to converter operation; Its purpose is to provide a stable converter operation method in which no slipping occurs. 상기 목적달성을 위한 본 발명은 전로(1) 취련중 산소유량의 속도와 비례하는 슬래그의 폼(foam) 높이와 전로 수명(이하, 단지 `노령'이라고도 함)의 증가에 의한 전로 내용적과의 상관관계를 도출하여 취련조업에 적합한 송산유량과 랜스(2)의 높이(h)를 계산하므로써, 전로 취련중 급격한 탈탄속도의 변화에 따라 슬래그 폼이 크게 발생하는 것을 방지하여 슬로핑 현상이 방지되는 안정적인 전로조업방법에 관한 것을 그 기술적 요지로 한다. The present invention for achieving the above object (1) the correlation between the foam height of the slag proportional to the speed of the oxygen flow during the blow and the converter content by the increase in the converter life (hereinafter referred to simply as 'aging') By deriving the relationship and calculating the flow rate and the height (h) of the lance (2) suitable for the blowing operation, it is possible to prevent the slag foam from largely occurring due to the rapid change in the decarburization rate during the converter drilling. The technical gist of the method of converter operation shall be taken.

DEVICE FOR GAS INJECTION IN THE RESERVOIR

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2005 131 910 (13) A (51) ÌÏÊ F27D C21B C21B C21C 3/16 (2006.01) 11/00 (2006.01) 13/00 (2006.01) 5/46 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2005131910/02, 14.10.2005 (71) Çà âèòåëü(è): ÒÅÊÍÎËÎÄÆÈÊÀË ÐÅÑÎÐÑÈÇ ÏÒÈ ËÈÌÈÒÅÄ (AU) (30) Êîíâåíöèîííûé ïðèîðèòåò: 15.10.2004 AU 2004906006 (43) Äàòà ïóáëèêàöèè çà âêè: 20.04.2007 Áþë. ¹ 11 A 2 0 0 5 1 3 1 9 1 0 R U Ñòðàíèöà: 1 RU A (57) Ôîðìóëà èçîáðåòåíè 1. Óñòðîéñòâî äë èíæåêòèðîâàíè ãàçà â ðåçåðâóàð, â êîòîðîì ïðåäóñìîòðåíû êàíàë äë ïîòîêà ãàçà, ïðîõîä ùèé îò çàäíåãî êîíöà ê ïåðåäíåìó êîíöó, ÷åðåç êîòîðûé èç êàíàëà îòâîäèòñ ãàç; ïîäâîä è îòâîä äë îõëàæäàþùåé âîäû, ïðîõîä ùèå ÷åðåç ñòåíêó êàíàëà äë ïîòîêà ãàçà îò åãî çàäíåãî êîíöà ê åãî ïåðåäíåìó êîíöó äë ïîäâîäà è îòâîäà îõëàæäàþùåé âîäû ê ïåðåäíåìó êîíöó êàíàëà; è êîëüöåâóþ ãîëîâêó êàíàëà, ðàñïîëîæåííóþ íà ïåðåäíåì êîíöå êàíàëà è èìåþùóþ âíóòðåííèé ïðîõîä äë îõëàæäàþùåé âîäû, ñîåäèíåííûé ñ ïðîõîäàìè äë ïîäâîäà è îòâîäà îõëàæäàþùåé âîäû îáåñïå÷èâàþùèé ïðèåì è âîçâðàò ïîòîêà îõëàæäàþùåé âîäû äë îõëàæäåíè ãîëîâêè êàíàëà èçíóòðè; ïðè ýòîì ãîëîâêà êàíàëà èìååò ïîëîå êîëüöåâîå ñòðîåíèå è ðàçäåëåíà âíóòðè ðàçäåë þùèì óñòðîéñòâîì äë ôîðìèðîâàíè óïîì íóòîãî ïðîõîäà äë îõëàæäàþùåé âîäû â âèäå ð äà êîëüöåâûõ ãàëåðåé äë ïîòîêà âîäû, êàæäà èç êîòîðûõ ïðîõîäèò ïî îêðóæíîñòè âîêðóã êàíàëà, è êîòîðûå âçàèìíî ñîåäèíåíû äë òå÷åíè âîäû ïîñëåäîâàòåëüíî ÷åðåç ãàëåðåè îò ïðîõîäà äë ïîäà÷è îõëàæäàþùåé âîäû ê ïðîõîäó äë îòâîäà îõëàæäàþùåé âîäû. 2. Óñòðîéñòâî ïî ï.1, â êîòîðîì êîëüöåâà ãîëîâêà êàíàëà âêëþ÷àåò â ñåá ïîëóþ îáîëî÷êó, à ðàçäåë þùåå óñòðîéñòâî âêëþ÷àåò â ñåá êîëüöî, ðàñïîëîæåííîå âíóòðè îáîëî÷êè è ñíàáæåííîå ìíîæåñòâîì êðóãîâûõ âûñòóïîâ, âûñòóïàþùèõ íàðóæó îò öåíòðàëüíîé ÷àñòè êîëüöà ê îáîëî÷êå òàê, ÷òîáû ðàçäåëèòü âíóòðåííåå ïðîñòðàíñòâî îáîëî÷êè íà óïîì íóòûå ãàëåðåè äë ïîòîêà âîäû. 3. Óñòðîéñòâî ïî ï.2, â êîòîðîì óïîì íóòûå êðóãîâûå âûñòóïû ñëóæàò â ...

The method for improving steel-making vanadium extraction rate

一种提高炼钢提钒率的方法，属于炼钢领域。该提高炼钢提钒率的方法包括以下步骤：使用氧枪对转炉中的含钒铁水进行吹炼；排出半钢，回收钒渣；其中转炉每吹炼5‑6炉含钒铁水后使用氧枪对转炉炉口进行吹洗。本发明提供的提高炼钢提钒率的方法能够有效的提高低钒含量的含钒铁水的提钒效率。

Method for reduction smelting of metallurgical raw materials

Сущность изобретения касается способа восстановительной плавки в металлургических реакционных сосудах, содержащих ванну расплавленного металла, в которую реагенты подаются ниже и выше поверхности ванны. Газы, выделяющиеся из ванны расплавленного металла, дожигаются в пространстве над расплавом за счет окислительных газов, вдуваемых в газовое пространство, а образующееся тепло передается ванне расплавленного металла. Фракции расплава в виде капель, брызг и крупных частиц расплава движутся по баллистическим траекториям в газовом пространстве металлургического реакционного сосуда, выбрасываемые из расплава в виде фонтана посредством газа, вдуваемого через нижние фурмы. 11 з.п.ф-лы, 1 ил. 69050 Сс ПЧ ГЭ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ “” 2 105 069 ' (51) МПК 13) Сл С 21 В 13/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93056168/02, 15.10.1993 (30) Приоритет: 16.10.1992 ОЕ Р 4234974.5 (46) Дата публикации: 20.02.1998 (56) Ссылки: 00 М 101916, кл. С 22В 500, 1976. ОЕ М 2755165, кл. С 21 С 5/32, 1971. ОЕ М 2838983, кл. С 21 С 5/28, 1974. СВ М 2082624, кл. С 10 4 300, 1974. ОЕ М 4206828, кл. С 22 В 500, 1993. 4$ М 5051127, кл. 75-553, 1991. ЕР М 0418627, кл. С 21 В 1300, 1993. УР М 62-28 0311, заявл. 29.05.86. М 61-122244, опубл. 05.12.87. (71) Заявитель: Текнолоджикал Рисорсез ПТИ Лимитед (АЦ) (72) Изобретатель: Грегори Джон Харди[АЦ], Пол-Герхард Мантей[0ОЕ], Марк Филип Шварц[АЦ] (73) Патентообладатель: Текнолоджикал Рисорсез ПТИ Лимитед (АЦ) (54) СПОСОБ ВОССТАНОВИТЕЛЬНОЙ ПЛАВКИ МЕТАЛЛУРГИЧЕСКОГО СЫРЬЯ (57) Реферат: Сущность изобретения касается способа восстановительной плавки В металлургических реакционных — сосудах, содержащих ванну расплавленного металла, в которую реагенты подаются ниже и выше поверхности ванны. Газы, выделяющиеся из ванны расплавленного металла, дожигаются в пространстве над расплавом за счет окислительных газов, вдуваемых в газовое пространство, а образующееся тепло передается ванне ...

Converter refining method and device of molten steel using residual slag

본 발명은 전로 내에 용선을 장입하는 장입 단계와, 상기 전로 내에 산소를 취입하여 상기 용선의 불순물을 제거하는 취련 단계와, 상기 취련 단계를 통해 취련된 용강을 래들로 내보내는 출강 단계와, 상기 출강 단계 이후 산소 공급용 랜스를 상기 전로 내부에 위치시킨 상태에서 공취하여 잔류 슬래그와 산소를 반응시키는 내부 공취 단계, 및 상기 내부 공취 단계 이후 상기 전로의 내벽에 잔류 슬래그를 코팅하는 코팅 단계를 포함하는 전로 정련 방법 및 이에 적용되는 전로 정련 장치에 관한 것으로서, 출강 공정 후 산소 공급용 랜스를 전로 내에 투입하여 산소와 잔류 슬래그를 반응시킴으로써 잔류 슬래그 내 산화철(FeO) 성분을 증대시킬 있는 전로정련방법을 제공한다. The present invention provides a charging step of charging molten iron into a converter, a blowing step of removing oxygen from the molten iron by injecting oxygen into the converter, a tapping step of sending out molten steel blown through the blowing step, and the tapping step. The converter refining process includes an internal donating step of reacting oxygen with a residual slag by placing the oxygen supply lance inside the converter and reacting oxygen with the remaining slag, and then coating the inner slag on the inner wall of the converter after the internal donating step. The present invention relates to a method for refining a converter, and to a converter refining method capable of increasing iron oxide (FeO) in residual slag by reacting oxygen with residual slag by introducing an oxygen supply lance into the converter after the tapping process.

METHOD AND SYSTEM OF DELIVERY OF GAS AND GRAIN MATERIAL FOR THE METALLURGICAL UNIT

1. Способ загрузки зернистого материала в металлургический агрегат через фурменную систему, включающий в себя:введение через фурменную систему газа-носителя низкого давления так, чтобы газ поступал в металлургический агрегат,подачу зернистого материала в газ-носитель низкого давления для того, чтобы газ переносил зернистый материал в металлургический агрегат;остановку подачи зернистого материала ипродувку фурменной системы при помощи газа-носителя высокого давления.2. Способ по п.1, дополнительно содержащий контроль и модулирование расхода газа-носителя и расхода зернистого материала.3. Способ по п.1, в котором зернистым материалом является известь, а газом-носителем является кислород.4. Способ по п.1, в котором газ-носитель низкого давления регулируется при помощи первого и второго регулирующих клапанов, а газ-носитель высокого давления регулируется при помощи первого регулирующего клапана и байпасного клапана.5. Способ по п.1, в котором газ-носитель низкого давления и газ-носитель высокого давления регулируются при помощи одного клапана, регулирующего давление.6. Способ по п.5, в котором газ-носитель низкого давления и газ-носитель высокого давления модулируются при помощи одного клапана, регулирующего давление.7. Устройство загрузки зернистого материала в металлургический агрегат через фурменную систему, содержащееметаллургическую фурму, имеющую внутренний ствол, сообщающийся с головкой фурмы и коллектором фурмы;внешнюю трубу, имеющую первый конец, свободно сообщающийся с внутренним стволом в коллекторе и второй конец, герметичный на внешней стороне впускной трубы для зернистого материала;первую ча� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C22B 9/10 (13) 2013 153 157 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013153157/02, 30.04.2012 (71) Заявитель(и): БЕРРИ МЕТАЛ КАМПАНИ, США (US) Приоритет(ы): (30) Конвенционный приоритет: 29.04.2011 US 61/480,982 (85) Дата начала рассмотрения заявки PCT на ...

Method for recycling oily mill scale

Oily mill scale recovered from steel manufacturing operations downstream of a refining stage for molten steel is recycled to the refining stage. Coarse particles of mill scale are removed in a pre-screening operation, the mill scale is mixed and blended with a binder, and the mixture is agglomerated into shapes, such as briquettes, using external mechanical pressure. The agglomerated shapes are introduced into molten metal containing excessive carbon, where the shapes act as a coolant and the iron oxide in the mill scale reacts with some of the carbon. The oily mill scale is neither deoiled nor ground more finely prior to introduction into the molten metal, and all processing of the mill scale is conducted under ambient conditions of temperature, pressure and atmosphere. The agglomerated shapes may be aged prior to introduction into the molten metal.

Method and apparatus for producing metals and metal alloys

FIELD: metallurgy, namely, processes for producing metals and metal alloys from ores and partially reduced ores in metallurgical reactor. SUBSTANCE: method comprises steps of preparing melt bath containing metal and slag, injecting carrying gas and solid carbon-containing material and(or) metal oxides and(or) other solid material through portion in reactor lateral wall contacting with melt bath and(or) from upwards over melt bath. Injection of carrying gas and solid carbon-containing material provides throwing out of particles of melt and slag into space over melt bath for creating transition zone. Injection of oxygen-containing gas into space over melt bath provides afterburning of reaction gases. Apparatus for performing the method includes metallurgical reactor for melt bath having bottom, lateral walls, gas duct and two tuyeres. First tuyere serves for injecting oxygen containing gas into space over melt bath. Second tuyere is arranged in portion of reactor lateral wall and serves for injecting carrying gas and solid carbon-containing material and(or) metal oxides and (or) other solid material into space over melt bath for creating transition zone. Said zone provides possibility of raising and descending particles of metal and slag. EFFECT: enhanced efficiency of method, improved design of apparatus. 16 cl, 2 dwg зогсэ9Ес Пы с» РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (13) ВИ `” 2 162 108” С2 57 МК С 21В 13/00, С 21 С 5/32, Е 27 0 3/18 (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 97118430/02, 04.04.1996 (71) Заявитель: ТЕКНОЛОДЖИКАЛ РЕСОРСИЗ ПТИ ЛИМИТЕД (24) Дата начала действия патента: 04.04.1996 (АЦ) (30) Приоритет: 07.04.1995 АЧ РМ 2260 (46) Дата публикации: 20.01.2001 (56) Ссылки: ЕР 0446860 А\, 18.09.1991. $ЧЦ 1304149 А, 15.04.1987. КУ 2105069 СЛ, (72) Изобретатель: Джон Александр ИННЕС (АЦ), Робин Джон БАТТЕРХЕМ (АЦ), Род Джеймс ДРАИ (АУ) (73) Патентообладатель: ТЕКНОЛОДЖИКАЛ РЕСОРСИЗ ПТИ ЛИМИТЕД 20.02.1998. ...

Tuyere for a basic oxygen furnace

통풍구는, 내부 튜브로서, 제1 직경을 갖는 하부 섹션, 제1 직경보다 작은 제2 직경을 갖는 상부 섹션, 및 하부 섹션을 상부 섹션에 연결하는 수렴 각도 Θ가 15° 내지 35°인 수렴 전이 섹션을 포함하고, 상부 섹션의 하류 단부에서 내부 노즐에서 종결되는 내부 튜브; 및 사이에 고리를 생성하도록 내부 튜브를 둘러싸는 외부 튜브로서, 제1 직경보다 큰 제3 직경을 갖는 하부 섹션, 제3 직경보다 작지만 제2 직경보다는 큰 제4 직경을 갖는 상부 섹션 및 하부 섹션을 상부 섹션에 연결하는 수렴 전이 섹션을 포함하고 상부 섹션의 하류 단부에서 외부 노즐에서 종결되는 외부 튜브를 포함한다. The vent includes, as an inner tube, a lower section having a first diameter, an upper section having a second diameter smaller than the first diameter, and a converging transition section having a convergence angle Θ connecting the lower section to the upper section of 15° to 35° an inner tube terminating at the inner nozzle at the downstream end of the upper section; and an outer tube surrounding the inner tube to create a loop therebetween, the lower section having a third diameter greater than the first diameter, an upper section having a fourth diameter less than the third diameter but greater than the second diameter, and a lower section an outer tube comprising a converging transition section connecting to the upper section and terminating at an outer nozzle at a downstream end of the upper section.

Method of producing metals and metal alloys

一种在包含一个拥有一个金属层和一个熔渣层的熔池的冶炼容器内从金属氧化物中生产金属和金属合金的方法和设备。该方法的特征是从容器与熔池相接触的一侧或从熔池的上方将气体载体和固体碳素材料和(或)金属氧化物喷入熔池中,随后这些固体粒子便穿透熔池并把熔融的金属喷射到熔池上方的气体空间内而形成一过渡区。该方法还有一个特征是将含氧气体喷入气体空间以对从熔池中释放出来而进入过渡区的气体进行二次燃烧反应。

Ignition device for oxygen lance

산소랜스의 점화장치가 개시된다. 본 발명의 실시 예에 산소랜스의 단부에 장착되는 점화장치로서, 산소랜스의 단부에 끼움 장착 가능하며 분사홀을 갖는 캡 바디 및 산소랜스에서 공급되는 산소의 압력에 의해 분리 가능하도록 분사홀에 결합되며 분사홀에서 이탈할 때 분사홀과의 마찰열에 의한 불꽃을 생성하는 점화 팁을 포함한다. An ignition device for an oxygen lance is disclosed. An ignition device mounted on an end of an oxygen lance according to an embodiment of the present invention, which can be fitted to an end of an oxygen lance and coupled to the injection hole so as to be separated by a cap body having an injection hole and a pressure of oxygen supplied from the oxygen lance. And an ignition tip that generates sparks by frictional heat with the injection holes when they are separated from the injection holes.

Method for injection of gas into liquid

FIELD: methods for injection of gases into liquid. SUBSTANCE: the method consists in ejection of gas from a tapered pipe connection having a contraction-diffuser nozzle with outlet diameter d, formation of gas flow, having a supersonic initial speed of the jet at ejection from the tapered pipe connection, production of a flame envelope around the gas flow for transformation of the gas flow to a coherent gas flow, having a supersonic initial axial speed of the jet, passage of the coherent gas flow from the tapered pipe connection to the surface of the liquid volume, contacting of the surface of the liquid volume with the coherent gas flow and passage of gas to the liquid volume. The tapered pipe connection is moved off from the surface of the liquid volume at a distance at least 20 d. The coherent gas flow is passed through the mentioned distance of at least 20 d to the contact with the surface of the liquid volume, keeping the envelope of the flame surrounding the gas flow from the end of the mentioned tapered pipe connection to the surface of the liquid volume, due to it the coherent gas flow contacts with the surface of the liquid volume at the initial axial speed of the jet at least 50% of the initial gas speed. EFFECT: provided injection of gas from the device for injection of gas into liquid without its immersion and damages caused by a contact with liquid. 7 cl, 7 dwg 6713 0сс ПЧ сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ "” 2 208 749 ' 13) С2 Е 270 7/02, С 21С 5/48 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98105422/02, 11.03.1998 (24) Дата начала действия патента: 17.03.1998 (30) Приоритет: 18.03.1997 Ц$ 08/819,810 (43) Дата публикации заявки: 10.01.2000 (46) Дата публикации: 20.07.2003 (56) Ссылки: Ц$ 3889933, 17.06.1975. 4$ 4410359, 18.10.1983. 5Ч 1696490 АЛ, 07.12.1991. (98) Адрес для переписки: 129010, Москва, ул.Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. Е. ...

Converter steelmaking method

(과제) 전로에 있어서 용선의 탈탄 정련과 탈인 정련을 동시에 실시하여 용강을 제조함에 있어서, 효율적으로 탈인 정련할 수 있는 종래에 제안된 것보다 유리한 전로 제강 방법을 제공한다. (해결 수단) 전로 내에 기체 산소를 공급하여 용철의 탈탄 정련을 실시하면서, CaO 를 함유하는 분체의 탈인 정련제를 첨가하고, 그 탈인 정련제를 재화시켜 슬래그로 이루고, 상기 용철을 탈탄함과 동시에 탈인하고, 상기 용선으로부터 용강을 제조하는 전로 제강 방법에 있어서, 상기 탈인 정련제를 상취 랜스로부터의 적어도 1 개 이상의 기체 분류에 수반하여 용철 욕면에 공급하고, 또한 상기 상취 랜스로부터의 기체 분류가 상기 용철 욕면에 충돌할 때의 동압을, 수반되는 상기 탈인 정련제의 운동 에너지에 의한 동압 상승을 정량적으로 평가한 후에 적정값 이하로 제어한다. (PROBLEMS TO BE SOLVED BY THE PROBLEMS TO BE SOLVED BY THE INVENTION) [PROBLEMS] To provide a method for converting furnace steel which is more advantageous than that proposed in the prior art, which can efficiently degas the refined steel by performing decarburization refining and degumming refining simultaneously. (Solution) A deoxidizing refining agent of powder containing CaO is added while supplying gaseous oxygen into the converter to perform decarburization refining of the molten iron, and the deodorizing refining agent is comminuted and formed into slag by degassing and decontaminating the molten iron The method for producing molten steel from molten iron according to claim 1, wherein the degumming scouring agent is supplied to the molten iron bath surface along with at least one gas fraction from the molten lance, The dynamic pressure at the time of collision is quantitatively evaluated after the rise of the dynamic pressure due to the kinetic energy of the accompanying dephosphorization agent, and then the dynamic pressure is controlled to be the appropriate value or less.

Method of making smelted steel

Production of low-nitrogen steel by blowing of inert gas

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

PYROMETALLURGICAL METHOD FOR PRODUCING METAL MELTS AND CONTAINING TRANSITION METAL ADDITIVE FOR THEM

1. Способ получения расплава металла, содержащего, по меньшей мере, один основной металл и, по меньшей мере, один иной легирующий компонент, причем получение осуществляют в плавильном сосуде со шлаком, покрывающим расплав, причем, по меньшей мере, одну присадку, содержащую легирующий компонент в форме переходного металла, вводят в расплав в форме твердого вещества для обогащения расплава легирующим компонентом, и присадка при этом содержит ≥10 мас.% этого легирующего компонента, отличающийся тем, что присадка содержит ≥20 мас.% безвредных в отношении пирометаллургических процессов летучих компонентов в виде Н2О и/или СО2, ≤5 мас.% серы и при необходимости другие легирующие компоненты и/или шлакообразователи, и присадку, содержащую легирующий компонент, вводят непосредственно в расплав металла посредством газового потока с образованием свободного от шлака фокального пятна расплава металла, покрытого шлаком. ! 2. Способ по п.1, отличающийся тем, что присадку вводят в расплав так, что обжиг или разложение присадки происходит, по меньшей мере, в основном только при выходе или после выхода из предусмотренного устройства подачи и перед входом или при входе в расплав металла, или в зоне столкновения. ! 3. Способ по п.1 или 2, отличающийся тем, что присадку вводят в расплав в потоке твердого вещества, окруженного защитной оболочкой газового потока. ! 4. Способ по п.1 или 2, отличающийся тем, что фокальное пятно имеет температуру ≥1750°С. ! 5. Способ по п.3, отличающийся тем, что поток защитного газа содержит кислород в количестве ≥25 мас.% или представляет собой, по меньшей мере, в основном кислород. ! 6. Способ по п.3, отличающийся тем, чт РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 139 868 (13) A (51) МПК C21C 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2009139868/02, 04.03.2008 (71) Заявитель(и): М.К.Н. ТЕКНОЛОДЖИЗ ГМБХ (DE) Приоритет(ы): (30) Конвенционный приоритет: 29.03.2007 DE ...

Method for afterburning active burnable gases and a device to implement it

FIELD: metallurgy. SUBSTANCE: method for afterburning active burnable gases comprises feed at least one hollow swirl jet of oxidizing gas in the direction of bath surface. Degree of jet swirling within 0.1 to 0.5 is set as to its tangential and axial speed for effective afterburning gases generated over the bath and feeding thermal energy generated by the gases to the bath. The jet is fed to the bath surface at 10 to 90 ° angle. Oxidizing gases may be fed in the form of preheated round jet. Oxygen, air or mixtures of inert gas, CO 2 , H 2 O vapors and O 2 are used as oxidizing gases. A mean to select swirling degree in the device to implement the method is made in the form of member installed inside annular nozzle of an oxygen lance. The member is moved inside nozzle to feed oxidant. Diameter of member is twice as large as that for width of nozzle ring set at angle of 100 to 180 ° to axis of body directed to bath surface. EFFECT: effective afterburning. 10 cl, 5 dwg 9679 0с ПЧ Го (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ “” 2025 496 ' (51) МПК 13) СЛ С 21В 13/00, С 21С 5/48 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 4613390/02, 10.02.1989 (30) Приоритет: 12.02.1988 АЦ Р1 6741; Р1 6745; Р1 9558 (46) Дата публикации: 30.12.1994 (56) Ссылки: 1. Авторское свидетельство СССР М 1500166, кл. С 21В 1300, 1987.2. Авторское свидетельство СССР М 1439129, кл. С 21С 5/48, 1987. (71) Заявитель: Клекнер Кра Патент ГмбХ (0Е) (72) Изобретатель: Грегори Джон Харди[АЦ], Джон Микаэль Ганзер[АЦ] (73) Патентообладатель: Клекнер Кра Патент ГмбХ (0Е) (54) СПОСОБ ДОЖИГАНИЯ АКТИВНЫХ ГОРЮЧИХ ГАЗОВ И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ (57) Реферат: Использование: в области металлургии при дожигании активных горючих газов, образующихся из реагентов, вводимых в жидкую ванну железа и окислов железа. Сущность изобретения: способ дожигания активных горючих газов включает подачу по крайней мере одной полой завихренной струей —окислительных газов /ОГ/ в ...

Method for steel melting in converter

Изобретение относитс  к черной металлургии, в частности к способам выплавки стали в конвертерах, и позвол ет повысить экономичность процесса за счет более полной утилизации тепла. Способ включает загрузку в конвертер скрапа, заливку чугуна, вдувание кислорода в оболочке защитной среды ниже уровн  расплава через донные фурмы, одновременн ю подачу кислорода сверху на уровень расплава в центр ванны по меньшей мере одной струей и подачу извести в начале вдувани  кислорода. Кислород, вдуваемый на уровень расплава, подают в виде свободной струи и при образовании пенистого шлака ниже уровн  расплава вдувают порошкообразную известь. Сво- струю вдувают с высоты 2-ГО м над уровнем спокойной ванны. 1 з.п. ф-лы. с Р СО со о Ot) 4 00

Pyrometallurgic method for production of metal melts and additive for such melt containing transitive metals

FIELD: metallurgy. SUBSTANCE: the invention relates to metallurgy, in particular, to pyrometallurgic methods for production of metal melts containing transitive metals. In order to increase the concentration of doping component in the melt an additive containing a doping component is added to the melt. The additive contains ≥5-10% of doping component, ≥5- 10% of volatile components harmless to the pyrometallurgic process in the form of H 2 O and/or CO 2 , including ≥20% of chemically combined water in form of composition water and/or hydroxyl groups, ≤5% of sulphur and other doping components and/or slag-forming agents, if needed. The additive is produced by ore lixiviating and deposition in the form of hydroxides and/or carbonates. It is used in pyrometallurgic processes, which comprise argon-oxygen decarburization process (AOD), Creusot-Loire-Uddeholm process (CLU), vacuum oxygen decarburization process (VOD), basic oxygen process (BOP) or quick basic oxygen process (Q-BOP), or electric furnace melting process. EFFECT: simplified control over pyrometallurgic process and provided the possibility to dope metal melts with low cost. 26 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 442 829 (13) C2 (51) МПК C21C C21C 7/00 5/00 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009139868/02, 04.03.2008 (24) Дата начала отсчета срока действия патента: 04.03.2008 (73) Патентообладатель(и): М.К.Н. ТЕКНОЛОДЖИЗ ГМБХ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 29.03.2007 DE 102007015585.0 (72) Автор(ы): МЕЙН Ульрих (DE) (43) Дата публикации заявки: 10.05.2011 Бюл. № 13 2 4 4 2 8 2 9 (45) Опубликовано: 20.02.2012 Бюл. № 5 (56) Список документов, цитированных в отчете о поиске: WO 97/20954 A1, 12.06.1997. EP 0583164 A1, 16.02.1994. RU 2219247 C2, 20.12.2003. RU 2051180 C1, 27.12.1995. 2 4 4 2 8 2 9 R U (86) Заявка PCT: DE 2008/000389 (04.03.2008) C 2 C 2 (85) Дата начала рассмотрения заявки PCT ...

Converter

FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy and can be used for steel melting in converter. Devices for oxygen blowing of liquid component of charge, particularly cast iron, are made in the form of injectors located in the side wall along the inner rim of the converter, located at the level of melt and made in the form of an ultrasonic nozzle of Laval, surrounded by a circular nozzle forming the enveloping gas jet, and directed to the surface melt at an angle of not more than 43°, wherein the ultrasonic nozzle is configured to supply oxygen therethrough, the ultrasonic velocity of which is greater than (1.5x) of the sound speed, and the annular nozzle is configured to supply a mixture of compressed air and natural gas therethrough, wherein the pulse of the oxygen jet supplied through the ultrasonic nozzle enables the oxygen jet to penetrate into the molten metal bath.EFFECT: invention allows injectors to feed oxygen over melt level through injectors built into converter sidewall.4 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 711 692 C2 (51) МПК C21C 5/46 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C21C 5/46 (2019.05) (21)(22) Заявка: 2017137941, 01.04.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): СМС ГРУП ГМБХ (DE) Дата регистрации: 21.01.2020 Приоритет(ы): (30) Конвенционный приоритет: 08.04.2015 DE 102015105307.1 (43) Дата публикации заявки: 08.05.2019 Бюл. № 13 (45) Опубликовано: 21.01.2020 Бюл. № 3 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 08.11.2017 2 7 1 1 6 9 2 (56) Список документов, цитированных в отчете о поиске: EP 071755 A1, 16.02.1983. DE 3390501 C2, 26.11.1987. RU 2426797 С1, 20.08.2011. RU 2532584 С1, 10.11.2014. R U 01.04.2016 (72) Автор(ы): НЁРТЕМАНН, Ральф (DE) 2 7 1 1 6 9 2 R U DE 2016/100155 (01.04.2016) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2016/162016 (13.10.2016) Адрес для переписки: ...

Process for refining aluminium core killed steel in converter with inc reased nitrogen

Converter steel making method which reduces phosphorus content

Process for the operation of convertor

Field Emission Display Driving with Radio Frequency

본 발명은 저전압 구동이 가능하도록 한 전계 방출 표시장치에 관한 것이다. The present invention relates to a field emission display that enables low voltage driving. 본 발명에 따른 고주파구동 전계 방출 표시장치는 고주파신호가 인가되게 상부기판에 형성되는 양극인 고주파전극과, 상기 고주파전극과 대향되게 하부기판에 설치됨과 아울러 전자들이 면방출되게끔 면상으로 형성되는 음극을 구비한다. The high frequency driving field emission display device according to the present invention is a high frequency electrode which is an anode formed on an upper substrate so that a high frequency signal is applied, and a cathode which is installed on the lower substrate so as to face the high frequency electrode and is formed in a plane such that electrons are emitted in a plane. It is provided. 이러한 구성에 의하여, 본 발명에 따른 고주파 구동 전계 방출 표시장치는 저전압으로도 충분한 휘도를 얻을 수 있게 된다. With this arrangement, the high frequency drive field emission display device according to the present invention can obtain sufficient luminance even at low voltage.

Operating method of converter using low manganese hot metal

본 발명은 제강공정중 전로공정에서 저망간 함유 용선을 이용하여 취련 및 용강제조 작업을 실시할 때, 용철의 노구밖으로의 튐현상(이하 스피팅이라 칭함)을 억제하고 처리종료(이하 종점)시점에서의 Mn 농도를 종래와 동등이상으로 유지하기 위한 전로 조업방법에 관한 것이다. 본 발명은 취련 초기(취련 시작에서 6분까지) L/Lo를 0.63~0.70로 유지함과 동시에 FeO원료인 소결광을 3~5kg/T-S을 투입하며, 취련중기(7~14분)는 L/Lo를 0.75~0.80로 유지하되 스피팅 발생영역인 10~12분경 바로 앞 시점인 9분경에 소결광 3~5kg/T-S을 재차 투입하고, L/Lo를 0.68로 유지하며, 취련말기(15분이후)에는 L/Lo를 0.85이상으로 유지하는 것을 특징으로 하는 저Mn 용선의 전로 조업방법을 제공한다. 본 발명에 의하면 용선 Mn농도가 0.23%이하가 되는 저Mn용선을 사용할 때 초기 슬래그의 재화불량 및 중기 슬래그의 점도상승에 따른 스피팅 발생현상을 억제함과 동시에 종래의 일반용선 사용시 전로 종점에서의 Mn농도인 0.007%수준을 유지할 수 있었다.

Device for injecting gas into reservoir

FIELD: machine building. ^ SUBSTANCE: device for injecting gas into metallurgical reservoir consists of channel for gas flow passing from back end to front end, of passages for cooling water supply and drain formed with three concentric tubes and of circular hollow head of gas flow channel at front end of channel with passage for cooling water connected with passages for cooling water supply and drain. The channel head includes a hollow shell and a dividing device positioned inside the shell; the dividing device consists of a dividing ring and of multitude of circular lugs. The lugs project outside from central part of the dividing end to the shell and form passages for cooling water in form of a row of circular galleries for water flow each running along circumference of the channel for gas flow and which are interconnected for water flow successively via the galleries from the passage for supply of cooling water to the passage for return of the cooling water. Also, there are partitions installed between the dividing device and the said shell to make ends of galleries for water flow and orifices in the said lugs forcing water flow successively along galleries. ^ EFFECT: raised strength of structure and improved cooling. ^ 14 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 413 150 (13) C2 (51) МПК F27D 7/00 (2006.01) C21B 11/00 (2006.01) C21B 13/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2005131910/02, 14.10.2005 (24) Дата начала отсчета срока действия патента: 14.10.2005 (72) Автор(ы): УИЛЛЬЯМС Тревор (AU), КЭЙДИ Бэрри Алан (AU) R U (73) Патентообладатель(и): ТЕКНОЛОДЖИКАЛ РЕСОРСИЗ ПТИ ЛИМИТЕД (AU) Приоритет(ы): (30) Конвенционный приоритет: 15.10.2004 AU 2004906006 (43) Дата публикации заявки: 20.04.2007 Бюл. № 11 2 4 1 3 1 5 0 (45) Опубликовано: 27.02.2011 Бюл. № 6 2 4 1 3 1 5 0 R U Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая ...

Method for refining hot metal in converter

상취 랜스(top-blowing lance)의 선단부(先端部)에 버너에 의한 화염을 형성하고, 화염의 열을 용선(溶銑) 에 착열시키면서, 전로(converter)에 있어서 용선을 탈(脫)인 처리 또는 탈탄 정련함에 있어서, 상취 랜스의 유로 내에서의 발열ㆍ연소를 걱정하는 일 없이, 착열 효율 및 생산성이 우수하고, 철 스크랩 등의 냉철원(cold iron source)의 배합 비율을 높일 수 있는 용선의 정련 방법을 제공한다. 정련용 분체 공급 유로와, 연소용 산화성 가스 공급 유로와, 정련용 산화성 가스 공급 유로를 따로 따로 갖는 상취 랜스(3)를 이용하여, 정련용 분체 공급 유로로부터, 석회계 매용제, 산화 철, 가연성 물질 중 1종 또는 2종 이상의 정련용 분체(29)를, 연료 가스 또는 연료 가스와 불활성 가스의 혼합 가스를 반송용 가스로서 용선 욕면(浴面)을 향하여 공급함과 함께, 연소용 산화성 가스 공급 유로로부터 연소용 산화성 가스를 공급하여 상취 랜스의 선단 하방에 화염을 형성시키고, 또한, 상기 정련용 산화성 가스 공급 유로로부터 정련용 산화성 가스를 용선 욕면을 향하여 공급한다.

CONVERTER

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 137 941 A (51) МПК C21C 5/46 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21) (22) Заявка: 2017137941, 01.04.2016 (71) Заявитель(и): СМС ГРУП ГМБХ (DE) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): НЁРТЕМАНН Ральф (DE) 08.04.2015 DE 102015105307.1 (43) Дата публикации заявки: 08.05.2019 Бюл. № 13 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 08.11.2017 DE 2016/100155 (01.04.2016) (87) Публикация заявки PCT: WO 2016/162016 (13.10.2016) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" R U (57) Формула изобретения 1. Конвертер для выплавки стали посредством продувки из, в целом, жидкого компонента шихты, в частности, чугуна, отличающийся тем, что для передела чугуна вместо вводимого через верхнее отверстие конвертора кислородного копья и расположенных в донной части конвертора донных сопел предусмотрено несколько распределенных в боковой стенке конвертера по внутреннему ободу конвертера, ориентированных на уровне расплава, инжекторов, при этом инжекторы выполнены в виде ультразвукового сопла Лаваля, окруженного кольцевой форсункой, образующей огибающую газовую струю, при этом инжекторы направлены к поверхности расплава под максимальным углом 43°, при этом ультразвуковое сопло выполнено с возможностью подачи через него кислорода, а кольцевая форсунка выполнена с возможностью подачи через нее смеси сжатого воздуха и природного газа, при этом ультразвуковая скорость больше чем (1,5х) скорость звука, при этом импульс подводимой через ультразвуковое сопло кислородной струи установлен с возможностью обеспечения проникновения кислородной струи в ванну расплавленного металла. 2. Конвертор по п. 1, отличающийся тем, что инжекторы выполнены с возможностью их переключения на режим горения с длинным пламенем, а также на инжекторный Стр.: 1 A 2 0 1 7 1 3 7 9 4 1 A (54) КОНВЕРТЕР 2 0 1 7 1 3 7 9 4 1 (86) Заявка PCT: режим с ...

The method that converter carries out double slag process smelting using corundum slag

本发明属于钢铁冶金技术领域，特别涉及转炉采用刚玉渣进行双渣法冶炼的方法。本发明要解决的技术问题是传统双渣法造渣过程存在的前期渣泡沫化严重、倒渣困难、渣中带铁量大等。为解决上述技术问题本发明提供了一种转炉采用刚玉渣进行双渣法冶炼的方法：在冶炼前期向炉内加入刚玉渣进行造渣，从而达到促进化渣和脱磷、降低初期渣中的FeO含量、减轻炉渣泡沫化的目的，使得在双渣法在冶炼中前期就能快速倒出足量的炉渣，同时将前期加入的Al 2 O 3 随炉渣倒出，有效控制了因渣中Al 2 O 3 含量增加而造成炉渣熔点低、溅渣效果差的问题。

Method for introducing gas into liquid pond

将气体引入液体池的方法,其中气流从液体池表面上方的喷枪中喷出,从喷枪指向液体表面。当气体与液体表面接触时,气体基本上保持了其初始轴向喷射速度,并且基本上所有气体都穿过液体表面,进入液体中。气流最好用从喷枪延伸到液体表面的火焰封围绕,它保护气体使其免于夹带环境空气。气流最好在液体中形成一个气体空腔,该空腔的直径大致与气流从喷枪中喷出时的一样。

Method for controlling blowing pattern of converter

The present invention provides a method to control blowing pattern of a converter to supply oxygen through a lance into a melting iron inserted into a container; to remove impurities in the melting iron; and to obtain a uniform operational result even under the conditions of constantly changing an operation of a converter by blowing a variable sending end flux which increases in a logarithmic function method into a container in accordance to the frequency of use of the container in case the frequency of use of the container is 200 times or less in the blowing process.

Blowing lance with direct ignition through retractable ignition lance

FIELD: metallurgy. SUBSTANCE: invention relates to metallurgy and can be used for vacuum treatment of molten metal by means of blast lance. Blast lance comprises an outer jacket, which extends along a blast lance longitudinal axis, where an oxygen guide runs within outer jacket and comprises an oxygen exit at end. Inside outer side surface there is a channel for combustible gas, which has outlets for exit of combustible gas at end. In lance there is an ignition device with an ignition tip for ignition of combustible gas mixture. Ignition device can move between extended position and retracted position. In extended position ignition tip acts on mixing area, in which combustible gas supplied to oxygen outlet and combustible gas exiting through outlets for combustible gas are mixed to produce a combustible gas mixture. In retracted position ignition device is retracted into a protective area for protection against splashes of molten metal. EFFECT: invention enables to reliably perform ignition of combustible mixture formed at end for purge gas outlet. 13 cl, 16 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 607 072 C2 (51) МПК C21C 5/48 (2006.01) C21C 7/10 (2006.01) F27B 3/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2012140971, 25.09.2012 (24) Дата начала отсчета срока действия патента: 25.09.2012 (72) Автор(ы): БРАУН, Дитер (DE), КИММИГ, Феликс (DE) 22.12.2016 Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: RU 2211248 C2, 27.08.2003. RU 10.10.2011 EP EP11184493 2142096 С1, 27.11.1999. RU 2135604 С1, 27.08.1999. EP 2354259 A1, 10.08.2011. EP 1054069 A2, 22.11.2000. (45) Опубликовано: 10.01.2017 Бюл. № 1 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" 2 6 0 7 0 7 2 (43) Дата публикации заявки: 27.03.2014 Бюл. № 9 R U (73) Патентообладатель(и): ПРАЙМЕТАЛЗ ...

Method of steelmaking in basic oxygen converter

Изобретение относится к области металлургии, в частности к способу выплавки стали с низким содержанием фосфора в конвертере. Способ включает загрузку в конвертер чугуна и скрапа, продувку расплава кислородом, подаваемым на зеркало ванны расплава с помощью кислородного копья в соответствии со схемой продувки, и подачу извести. Для схемы продувки кислородного копья задают высоту расположения копья над зеркалом ванны расплава и абсолютную продолжительность вдувания частичного количества кислорода постепенно в зависимости от содержания кремния в используемом чугуне и от требуемого ошлаковывания кремния и железа. Использование изобретения обеспечивает низкое содержание фосфора в стали при сохранении высокой надежности процесса. 4 з.п. ф-лы, 4 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 493 262 (13) C2 (51) МПК C21C 5/30 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011129681/02, 17.12.2009 (24) Дата начала отсчета срока действия патента: 17.12.2009 (73) Патентообладатель(и): СМС СИМАГ АКЦИЕНГЕЗЕЛЬШАФТ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 17.12.2008 DE 102008063796.3 (72) Автор(ы): ГАРТЕН Лутц (DE) (43) Дата публикации заявки: 27.01.2013 Бюл. № 3 2 4 9 3 2 6 2 (45) Опубликовано: 20.09.2013 Бюл. № 26 (56) Список документов, цитированных в отчете о поиске: ЕР 0723023 A1, 24.07.1996. JP 63195211 A, 12.08.1988. EP 0490099 A1, 17.06.1992. RU 2215793 C2, 10.11.2003. RU 2228369 C1, 10.05.2004. 2 4 9 3 2 6 2 R U (86) Заявка PCT: DE 2009/001830 (17.12.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.07.2011 (87) Публикация заявки РСТ: WO 2010/075852 (08.07.2010) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент", пат.пов. А.А. Силаевой, рег.№ 285 (54) СПОСОБ ВЫПЛАВКИ СТАЛИ В КИСЛОРОДНОМ КОНВЕРТЕРЕ (57) Реферат: Изобретение относится к области металлургии, в частности к способу выплавки стали с низким содержанием фосфора в конвертере. Способ ...

Patent RU2017137941A3

ВУ“? 2017137941” АЗ Дата публикации: 29.08.2019 Форма № 18 ИЗИМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017137941/02(066246) 01.04.2016 РСТ/ОЕ2016/100155 01.04.2016 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 192015105307.1 08.04.2015 РЕ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) КОНВЕРТЕР Заявитель: СМС ГРУП ГМБХ, ОЕ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. п см. Примечания [ ] приняты во внимание следующие пункты: р [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) С21С 5/46 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) С21С 5/00,5/28, 5/28, 5/30-5/35, 5/48 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепек, 7-Р]1а(Рав Рабеагсв, КОРТО, ОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория* относящихся к предмету поиска пункту формулы № 1 2 3 А ЕР 071755 А1 (МЕЗЗЕК СКТЕНЕМ СМВН) 16.02. ...

Method of introducing gas into a liquid pool

액체 내부로 가스를 분사시키기 위한 방법에 있어서 가스 흐름은 액체 표면위로 이격된 랜스로부터 방출되며 랜스로부터 액체 표면 상으로 향한다. 가스가 액체 표면에 접할 때 가스는 원래 제트 기류의 축 방향 속도를 유지하고, 거의 모든 가스는 액체 표면을 통과하여 액체 내부로 유입된다. 바람직하게, 가스 흐름은 랜스로부터 액체 표면에까지 흐르는 화염 엔빌로우프에 의해 둘러싸여 있음으로써, 주위 가스가 상기 가스 흐름으로 유입되는 것을 차단하다. 바람직하게, 가스 흐름은 랜스로부터 방출함에 따라 가스 흐름과 동일한 직경을 갖는 액체 내부에 가스 공동을 형성한다. In a method for injecting a gas into a liquid, the gas flow is released from a lance spaced above the liquid surface and directed from the lance onto the liquid surface. When the gas contacts the liquid surface, the gas originally maintains the axial velocity of the jet stream, and almost all the gas passes through the liquid surface and into the liquid. Preferably, the gas flow is surrounded by a flame envelope flowing from the lance to the liquid surface, thereby blocking ambient gas from entering the gas flow. Preferably, the gas flow forms a gas cavity within the liquid having the same diameter as the gas flow as it emanates from the lance.

Automatic control method for oxygen supply process of top-blown oxygen lance in converter smelting process

本发明公开了一种转炉冶炼过程中顶吹氧枪供氧工艺的自动控制方法，属于钢铁冶金技术领域，解决了现有方法不能根据炉内化渣等情况真正实现过程中枪位的自动、灵活、及时控制的问题。自动控制方法包括：选定自动控制时域后，根据转炉冶炼过程中氧分配行为的瞬时解析，判定渣中氧累积行为，进而判定渣中铁的氧化物的质量分数X FeOx ，比较X FeOx 与理论渣中铁的氧化物的质量分数X FeOx’ 的大小关系，进而调整顶吹氧枪的枪位。本发明的自动控制方法通过枪位调整与冶炼过程化渣的有效结合，能够实现冶炼过程熔池的平稳控制。

Improve control system and control method that sublance is inserted into precision

本发明涉及一种提高副枪插入精度的控制系统及控制方法，其特征在于，所述控制系统包括炉龄判断模块、液面高度测量模块、出钢量计算模块、标准出钢量液面高度计算模块、炉次液面高度计算模块、PLC通信模块、PLC副枪控制模块、炉均钢水液面下降高度计算模块以及副枪插入深度计算模块；该技术方案采用每隔一定炉次测量一次钢水液面高度，在两次测量液面高度之间的炉次，采用计算液面高度的方法进行控制副枪插入液面深度，控制方法由人工控制向智能控制的转变。

Device for injecting gas into reservoir

FIELD: machine building. ^ SUBSTANCE: device for injection of gas into metallurgical reservoir consists of channel for gas flow, elongated central device passing inside channel for gas flow from its back end to front end, of multitude of blades directing flow; also, blades are arranged around central device next to front end of channel for swirling gas flow. Further, the device consists of passages for cooling water supply and withdrawal. In the device a circular head of the channel at the front end of the channel has an internal passage for cooling water connected with passages for cooling water supply and withdrawal to cool the channel head from inside. The blades directing flow are assembled on the central device so, that they pass along the central device from the back end to the front end and their dimension ensures their front end contact with the supporting them head of the channel cooled with water from inside. The further back part of the channel head has a circular back wall running from internal periphery wall of the head. Also, the back wall of the head has a deformed corrugation to receive radial load on the wall at contact with front ends of the blades located inside the further back part of the channel head to contact only the further back part of the channel head. ^ EFFECT: raised reliability of device operation under conditions of high temperature. ^ 9 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 413 149 (13) C2 (51) МПК F27D 7/00 (2006.01) C21B 11/00 (2006.01) C21B 13/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2005131909/02, 14.10.2005 (24) Дата начала отсчета срока действия патента: 14.10.2005 (72) Автор(ы): УИЛЛЬЯМС Тревор (AU), КАЛЬВИ Джон Эдриан (AU) R U (73) Патентообладатель(и): ТЕКНОЛОДЖИКАЛ РЕСОРСИЗ ПТИ ЛИМИТЕД (AU) Приоритет(ы): (30) Конвенционный приоритет: 15.10.2004 AU 2004906004 (43) Дата публикации заявки: 20.04.2007 Бюл. № 11 2 4 ...

Patent JPS6214603B2

One kind bessemerizing terminal pretreatment of slag new process

本发明公开了一种转炉吹炼终点钢渣预处理新工艺，该工艺在转炉吹炼终点吹氧结束时立即向顶渣面改吹转炉煤气40‑120秒。该发明技术方案工艺简单，成本低。使钢渣气化脱磷降低钢渣氧化铁含量，提高钢水收得率、降低脱氧剂及合金消耗；有利于全留渣作业，少渣炼钢；有利于冶炼低磷钢、超低磷钢；有利于挡渣和溅渣护炉作业，有着巨大的经济效益。

Manganese high phosphorus hot metal proposes the preparation method that carbon protects manganese in a kind of converter smelting

本发明公开了一种转炉冶炼中锰高磷铁水(Mn0.70‑0.90wt%，Si 0.25‑0.45wt%，P 0.120‑0.220wt%，S≤0.040wt%)提碳保锰的制备方法，该方法通过采取留渣操作、连铸铸余渣应用、少渣冶炼、冶炼过程恒压变枪操作、转炉一倒最低枪位压枪操作、出钢全程渣洗等工艺并集成创新，促进了冶炼过程快速成渣化渣，改善了冶炼反应动力学和热力学条件，获得了良好的化渣脱磷效果，避免了冶炼过程钢水及炉渣喷溅，有效提高了渣中(MnO)分配浓度，促进了冶炼中期渣中(MnO)的还原，降低了冶炼后期钢水中Mn的再次氧化，进而显著提高了终点钢水残Mn含量(0.25‑0.40wt%)，减少了脱氧合金化过程中锰系合金加入量，显著降低了炼钢合金消耗及合金化成本，提高了产品市场竞争力。

Converter steelmaking method

Patent FR2376900B1

Method and device for the top injection of gas into a metal bath.

Patent FR2180132A1

OXYGEN PROCESS FOR THE PREPARATION OF STEELS WITH LOW CARBON AND NITROGEN CONTENT BY USING ARGON

Procédé de production d'acier à faible teneur en carbone par soufflage d'oxygène par le dessus de la surface d'un bain de métal ferreux contenu dans un récipient. Il consiste à introduire un fluide sans azote avant que la teneur en azote du bain atteigne un minimum, à maintenir le débit de l'effluent gazeux à une valeur au moins égale à un minimum donné, et à poursuivre l'introduction de fluide sans azote pendant la partie restante du soufflage d'oxygène. Domaine d'application : production d'acier à faible teneur en carbone et à faible teneur en azote. A process for producing low carbon steel by blowing oxygen from above the surface of a bath of ferrous metal contained in a vessel. It consists in introducing a fluid without nitrogen before the nitrogen content of the bath reaches a minimum, in maintaining the flow rate of the gaseous effluent at a value at least equal to a given minimum, and in continuing the introduction of fluid without nitrogen. during the remaining part of the oxygen blast. Scope of application: production of low carbon and low nitrogen steel.

Method and device for improving the thermal efficiency of the refining of pig iron by jet of pure oxygen

Steel production process

Production is carried out in two or more acid or basic oxysteel convertor-type furnaces without protective coatings on the furnace linings. One or more furnaces produce a maximum number of melts per day whilst another furnace is being newly lined. The latter furnace is also operated after receiving a new lining to produce a maximum number of melts per day whilst another furnace is being relined. Between the relining stages each furnace is operated to produce fewer than the maximum melts, in succession so that steel production periods of one furnace are partly overlapped by those of the other furnaces.

Process improvements for metal refining

Process for dephosphorizing cast iron, in particular Thomas cast iron

Improved process and equipment for steelmaking

New steel making process

Nitrogen contg steel - by adding nitrogen to oxygen during final blowing of melt

N2 is introduced into the molten steel by blowing very pure oxygen above the surface of the molten metal bath, by adding up to 6% gaseous nitrogen to the oxygen used for blowing during the last period of oxygen blowing. Pref. the N2 is added during the last third of oxygen, blowing via the lance. The distance between the orifice of the blowing lance and the surface of the bath is reduced, at least during a part of the nitrogen addn. Accurate control of the final nitrogen content of the molten steel. Rapid conversion of the nitrogen added to the molten steel. additional equipment is not required.

Retort for rotary metallurgical furnaces and in particular for fast rotary converters

Method for implementing metallurgical processes, and device allowing the application of this method

Steel making process

Improved process and devices for treating metals

Process for the production of fine steels

Recording tape order

Process for the treatment of iron alloys

Steel making process and devices