WO2014035276A1 - Способ и устройство получения металла из содержащих оксиды железа материалов - Google Patents
Способ и устройство получения металла из содержащих оксиды железа материалов Download PDFInfo
- Publication number
- WO2014035276A1 WO2014035276A1 PCT/RU2012/000704 RU2012000704W WO2014035276A1 WO 2014035276 A1 WO2014035276 A1 WO 2014035276A1 RU 2012000704 W RU2012000704 W RU 2012000704W WO 2014035276 A1 WO2014035276 A1 WO 2014035276A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal
- chamber
- melting chamber
- iron
- slag
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
Definitions
- the invention relates to ferrous metallurgy and can be used to produce cast iron or steel from iron ores, dump steelmaking slag, dust and sludge from metallurgical production and other materials containing iron oxides.
- the Romelt process has a number of disadvantages, the most serious of which are:
- bubbling of the slag layer is carried out by products formed by burning natural gas and / or liquid carbohydrates, an inert gas or a gas with an oxygen content of less than 35%.
- the proposed variants of the method for the direct production of metal (cast iron or steel) from materials containing iron oxides solve the problem of improving the technical and economic indicators of the process of liquid-phase reduction of iron from materials containing iron oxides, and provides the ability to obtain standard in composition and properties of cast iron or steel in one melting unit.
- Known Vanyukov’s furnace for continuous melting of materials containing non-ferrous and ferrous metals (patent RU 2242687 [5]), selected by the applicant as the closest analogue of the device for the direct production of cast iron or steel from materials containing iron oxides.
- a known furnace including a coffered shaft, divided by transverse baffles into an oxidizing melting chamber and into a slag oxide reduction chamber equipped with tuyeres, a stepped hearth, a siphon with holes for discharging slag and a metal-containing phase
- the coffered shaft is rectangular at the bottom and expands at the top
- the bottom the edge of the septum located on the side of the oxidation melting chamber is set at 5-15 diameters of the tuyere of the oxidation melting chamber below the axis of these tuyeres
- the upper Romka this baffle is located above the axis of the lances slag recovery chamber oxides 2.5-4.5 distances from recovery chamber axis lances slag oxides to threshold holes for discharging slag.
- the famous Vanyukov furnace for continuous melting of materials containing non-ferrous and ferrous metals has the following main disadvantages:
- the metal is in contact with the same slag as in the oxidative melting chamber, this eliminates the possibility of metal refining from sulfur and phosphorus;
- the proposed device for the direct production of pig iron or steel from materials containing iron oxides solves the problem of improving the design of the device and organizing the process of direct production of pig iron or steel from iron-containing materials by liquid-phase reduction of iron, increasing its productivity and improving the technical and economic parameters of the process.
- the technical result of the proposed device for the direct production of metal (cast iron or steel) from materials containing iron oxides is to eliminate the disadvantages of the closest analogue, namely:
- the technical result is achieved in that in a method for the direct production of metal from materials containing iron oxides, including heating the charge materials, loading them into a melting unit, melting the charge in a liquid slag metal bath, reducing iron oxides with carbon, adjusting the iron-containing melt to the required composition, production and casting metal and slag, according to the first invention and the first variant of the method, conduct the process of producing cast iron in a series of interconnected fuel and oxygen skull melting chambers, in one of which continuously pre-heated in a preheater mixture consisting of materials containing iron oxides, fluxes and a carbon reducing agent is continuously melted by combined fuel-oxygen burner-tuyeres, iron is reduced at an ore-slag melt temperature of 1550-1650 ° C, and the metal is obtained excess spent slag with an iron oxide content of 2.5-7% from the melting chamber through the slag notch, and the accumulated metal intermediate is periodically it is poured into the second melting chamber of a smaller volume through the chute, continuously heated by the heat
- the cast iron obtained in the second melting chamber is poured from the metal notch into the casting ladle.
- a portion of the intermediate from the first melting chamber is poured onto the slag remaining after the release of pig iron in the second melting chamber in an amount of 2-5% by weight of the refined intermediate.
- Exhaust gases from the first melting chamber with a temperature of 1750-1850 ° C are continuously transferred to the second chamber through a sealed lined gas duct for heating the chamber and the melt.
- the exhaust gases leaving the first melting chamber with a temperature of 1750-1850 ° C are continuously transferred to the second chamber through a cooled gas duct to heat the chamber and the melt.
- Exhaust gases leaving the first melting chamber are passed through the free space of the second melting chamber above the melt, burned with tuyeres by oxygen, and transferred to a charge material heater at a temperature of 1500-1700 C.
- Phosphorus is removed from the metal intermediate obtained in the first chamber.
- the metal intermediate accumulated in the first melting chamber is periodically poured into the second melting chamber of a smaller volume along a heated chute equipped with slide gates. Desulfurization, deoxidation and refinement of the metal to the desired composition in the second melting chamber are carried out periodically.
- Desulfurization, deoxidation and refinement of the metal to the required composition in the second melting chamber are carried out in a time not exceeding the time of accumulation of the metal intermediate in the first chamber.
- the carbon content in the metal intermediate obtained in the first melting chamber is maintained within the range of 3.7-3.9% by the addition of carburizing materials.
- argon is used in an amount of 0, 15-0.30 nm 3 per tonne of metal in the chamber.
- nitrogen is used in an amount of 0.20-0.35 nm 3 per tonne of metal in the chamber.
- the dusts captured in the general gas treatment are injected with injectors.
- Titanomagnetite ore is used as the material containing iron oxides, and vanadium alloyed iron and titanic slag are produced as smelting products for subsequent conversion to ferrotitanium or high titanium slag.
- Solid carbon-containing materials are used as fuel, which are loaded onto the melt surface or injected into the melt by injectors and burned with oxygen injected by combined fuel-oxygen burner tuyeres.
- Ore-briquette is used as the material containing iron oxides, they are loaded into the charge heater and partially metallize iron ore when passing briquettes through the charge heater.
- the technical result is achieved in that in a method for the direct production of metal from materials containing iron oxides, including heating the charge materials, loading them into a melting unit, melting the charge in a liquid slag metal bath, reducing iron oxides with carbon, adjusting the iron-containing melt to the required composition, production and casting metal and slag, according to the second invention and the second variant of the method, are the process of producing steel in series in interconnected fuel and oxygen skull smelting chambers, in one of which continuously pre-heated in a preheater mixture consisting of materials containing iron oxides, fluxes and a carbon reducing agent is continuously melted with combined fuel-oxygen burner-tuyeres, iron is reduced at an ore-slag melt temperature of 1550-1650 ° ⁇ , and the metal is obtained as an intermediate, excess spent slag with an iron
- the steel obtained in the second melting chamber is poured from the metal notch into the casting ladle.
- a portion of the intermediate from the first melting chamber is poured onto the slag remaining after the steel is released in the second melting chamber in an amount of 2-5% by weight of the refined intermediate.
- Exhaust gases from the first melting chamber with a temperature of 1750-1850 ° C are continuously transferred to the second chamber through a sealed lined gas duct for heating the chamber and the melt.
- the exhaust gases leaving the first melting chamber with a temperature of 1750-1850 ° C are continuously transferred to the second chamber through a cooled gas duct to heat the chamber and the melt.
- Exhaust gases leaving the first melting chamber are passed through the free space of the second melting chamber above the melt, burned with tuyeres with oxygen, and transferred to a charge material heater at a temperature of 1500-1700 C and then to a recovery boiler and gas purification.
- Phosphorus is removed from the metal intermediate obtained in the first chamber.
- the metal intermediate accumulated in the first melting chamber is periodically poured into the second melting chamber of a smaller volume along a heated chute equipped with slide gates. Desulfurization, deoxidation and refinement of the metal to the desired composition in the second melting chamber are carried out periodically.
- Desulfurization, deoxidation and refinement of the metal to the required composition in the second melting chamber are carried out in a time not exceeding the time of accumulation of the metal intermediate in the first chamber.
- argon is used in an amount of 0, 15-0.30 nm per tonne of metal in the chamber.
- nitrogen is used in an amount of 0.20-0.35 nm 3 per tonne of metal in the chamber.
- the dust trapped in the general gas treatment is injected into the slag ore melt in the first melting chamber by injectors.
- Solid carbon-containing materials are used completely or partially as fuel, loading them onto the surface of the melt, or injecting them into the melt with injectors, burning them with oxygen injected with combined fuel-oxygen burner-tuyeres.
- Ore coal briquettes are used as the material containing iron oxides, they are loaded into the charge heater and the iron ore is partially metallized as briquettes pass through the charge heater.
- the technical result is achieved in that in a device for the direct production of cast iron or steel from materials containing iron oxides, including devices for heating and loading the charge, melting chambers with primary cooling of the body by liquid metal coolant and secondary cooling with air or nitrogen, devices for draining metal and slag, according to the third invention, there are two separate adjacent installed connected to each other melting chambers, the first of which is equipped with combined and fuel-oxygen burner lances for melting the charge and providing heat with liquid-phase reduction of iron, and has an opening for dosed loading of the mixture in the upper part of the housing, an opening connected by a pipe to an opening in the housing of the second melting chamber for transferring exhaust gases into it, the first melting chamber has openings for the release of metal intermediate of which is connected to a second melting chamber installed at an angle of 10-12 ° to the horizontal by a closed heated lined trough, equipped with two slide gates, the other from A hole with a drain chute serves to quickly drain the melt, bypassing the second melting chamber, the first melting chamber has a slag groove with
- a hole for transmitting exhaust gases to the second chamber is made in the upper part of the first melting chamber of the housing with a diameter of 0.8-1.0 m.
- An opening for transferring exhaust gases to the second chamber in the upper part of the housing of the first melting chamber is connected by a lined pipe to an opening in the housing of the second melting chamber and is equipped with gates.
- An opening for transferring exhaust gases to the second chamber in the upper part of the housing of the first melting chamber is connected by a cooled pipe to an opening in the housing of the second melting chamber and is equipped with gates.
- the charge heating device is connected by a lined gas duct to the mixing chamber, which serves to cool the exhaust gases from the heater with air or nitrogen from the secondary cooling system of the melting chambers to 650 ° C and connected with the recovery boiler.
- a sealed charge metering charge device is installed, which cuts off the working space of the melting chamber from the charge heating device, with the possibility of opening the next portion of the charge at the time of loading.
- the volume of the second melting chamber is less than the volume of the first melting chamber.
- the level of the refractory hearth of the second melting chamber is 0.30-0.45 m below the level of the refractory hearth of the first melting chamber.
- the hole for the metered loading of charge materials in the second chamber is made with a size of 0.7x0.8 m.
- the hole in the upper part of the housing of the second melting chamber for transmitting gases passing through it and formed in it is made with a diameter of 0.8-1.0 m.
- the hole in the upper part of the housing of the second melting chamber for transmitting the gases passing through it and generated in it is connected by a sealed cooled pipe to the charge heating device for the first melting chamber.
- the hole in the upper part of the housing of the second melting chamber for the transmission of gases passing through it and generated in it is connected sealed lined pipe with a charge heating device for the first melting chamber.
- the process of direct production of metal (cast iron or steel) from materials containing iron oxides sequentially in two fuel-oxygen skull rooms connected to each other by the melting chambers according to the first and second embodiments allows continuous melting of the charge, liquid-phase reduction of iron, production and dephosphorization of the metal intermediate, and in the second melting chamber, bring the metal to the required properties and composition.
- the melting of a mixture of fuel-oxygen burners-lances, consisting of materials containing iron oxides, fluxes and a carbon reducing agent, preheated in the batch heater by the exhaust gases leaving the smelting chamber, allows the process to be carried out with minimal energy consumption, respectively, with a minimum fuel and oxygen consumption and minimum operating costs.
- the process of reducing iron at an ore-slag melt temperature of 1550-1650 ° C provides a high process speed. When the temperature of the ore-slag melt is less than 1550 ° C, the rate of reduction of iron is noticeably reduced.
- the process of reducing iron at temperatures above 1650 ° C causes a significant increase in fuel and oxygen consumption and affects the technical and economic performance of the process.
- the discharge of the accumulated excess slag with an iron oxide content of 2.5-7.0% allows you to create optimal conditions for the implementation of the process of obtaining a metal intermediate of the required quality.
- the content of iron oxides in the spent slag is less than 2.5%, it is impossible to carry out dephosphorization metal intermediate, when the content of iron oxides in the spent slag is more than 7%, there are large losses of iron with slag, which leads to a deterioration in the technical and economic indicators of the process of producing cast iron or steel.
- a smaller volume of the second melting chamber is associated with a significantly smaller amount of refining slag (3-10%) when refining and finishing metal than in the ore reduction process (30-50%), carried out in a large first melting chamber.
- the work of the second melting chamber in a batch process with a cycle duration not exceeding the accumulation time of the metal intermediate in the first chamber is caused by the need for periodic timely emptying of the working space to receive the next portion of the metal intermediate.
- Carrying out desulfurization, deoxidation and finishing of the metal to the required composition in the second melting chamber is advisable in connection with the possibility of inducing refining slag in the chamber, mixing the metal and slag with inert gas and maintaining a low oxidation potential of the gas phase in the second melting chamber.
- Leaving a finished cycle in the amount of 2-5% of the mass of the refined intermediate product in the second melting chamber after the finished metal of the refining slag is finished and the next portion is drained metal intermediate from the first melting chamber can significantly reduce the time of refining of metal and accelerate its refinement to the required temperature.
- the discharge of the metal intermediate from the first melting chamber to the slag remaining in the second melting chamber from the previous cycle and lowering the carbon content and, if necessary, phosphorus in the metal to the required limits by supplying oxygen to the metal with combined fuel-oxygen tuyeres, operating in the oxygen tuyere mode, while mixing the melt with an inert gas, blown through porous refractory plugs in the chamber bottom, they allow quick and effectively reduce the content of carbon and phosphorus in the metal under the finished slag.
- Heated second melting chamber with heat (physical and chemical) of exhaust gases leaving the first melting chamber which are continuously transferred to the second chamber at a temperature of 1750-1850 ° C through a sealed lined or cooled duct, passed through the free space of the second melting chamber above the melt and burned out at this part of the CO gases with oxygen supplied by the combined burner-tuyeres, allows to increase the degree of afterburning of CO gases, transfer heat of the gases to the melt, heat and melt the necessary allowances, reduce the total fuel consumption and improve the technical and economic indicators of the process.
- the transfer of gases at a temperature of 1500-1700 ° C from the second melting chamber to the charge material heater serving the first melting chamber and then to the recovery boiler makes it possible to more fully utilize the heat of the exhaust gases, improve the process conditions in the first melting chamber and increase the technical and economic process indicators.
- the carbon content in the metal intermediate obtained in the first melting chamber within the range of 3.7-3.9%, greatly facilitates and accelerates the production of standard cast iron in the second melting chamber in composition and properties.
- the carbon content in the metal intermediate obtained in the first melting chamber in the range of 2.6-2.9% facilitates and accelerates the production of steel standard in composition and properties in the second melting chamber.
- argon in the amount of 0.15-0.30 nm3 per tonne of metal in the second melting chamber in the second melting chamber accelerates the metal refining and refinement processes, and improves the quality of the metal.
- the argon flow rate is less than 0.15 nm3 per ton of metal, the resulting positive effect is insufficient.
- An argon consumption of more than 0.30 nm3 per ton of metal does not give a noticeable increase in the positive effect and leads to a deterioration of the technical and economic indicators of the process due to an increase in argon costs.
- the injectors injecting dust trapped in the gas purification into the slag ore melt located in the first melting chamber allows to organize waste-free production of cast iron and steel, as well as to increase the degree of extraction of iron from charge materials.
- titanomagnetite ore material as iron oxides and the production of vanadium alloyed cast iron and titanium slag as melting products for subsequent conversion into ferrotitanium or high-titanium slag allows expanding the range of processed iron ores and organizing the process of efficient processing of titanomagnetite ores.
- the presence of two separate melting chambers installed and interconnected allows to separate the processes of liquid-phase reduction of iron from iron ore materials and its dephosphorization with the formation of a large amount of low basicity slag and refining and finishing of the metal intermediate, in which a small amount of main slag is used. This ensures the possibility of obtaining standard in composition and properties of cast iron or steel.
- Combined fuel and oxygen lance burners in the walls of the body of the first melting chamber are needed to melt the charge being loaded, heat the melt, and compensate for the energy costs of the endothermic reactions of iron reduction and heat loss.
- the hole for dosed loading of the charge from the charge heater in the upper part of the first melting chamber provides the necessary speed of loading the charge and the desired performance of the process.
- a hole in the upper part of the casing of the first melting chamber with a diameter of 0.8-1.0 m connected by a cooled or lined pipe of the same diameter, equipped with gates, with an opening in the casing of the second melting chamber transfers hot exhaust gases containing a large amount of CO to the second chamber to heat it at the right speed.
- a hole diameter of 0.8 m is recommended for relatively small devices. performance and small size.
- a hole diameter of less than 0.8 m dramatically increases the gas velocity.
- the hole diameter of 1.0 m is convenient for large devices and large capacity.
- the hole diameter of more than 1.0 m weakens the design of the camera body.
- the pipe Since the temperature of the transmitted gases is high (1700 ° C or more), the pipe must be lined with refractory materials or it is cooled outside.
- the gates in the pipe allow you to disconnect one melting chamber from another when replacing the pipe in case of repair, as well as in the event of an emergency.
- the hole in the first melting chamber connected by a closed heated lined chute, installed at an angle of 10-12 ° to the horizontal, equipped with two slide gates, with a second melting chamber serves to overfill the metal intermediate without slag into the second melting chamber, eliminating heat loss by the intermediate.
- the tilt of the gutter at an angle of 10-12 ° to the horizontal allows you to quickly transfer the desired amount of metal intermediate into the second chamber.
- An inclination angle of 10 ° is convenient for small melting chambers, an inclination angle of 12 ° is convenient for large melting chambers.
- Two slide gates on the gutter are needed to prevent slag from draining into the second chamber, to disconnect the melting chambers in case of repair of the chute, or to allow separate operation of the melting chambers if necessary.
- the second hole with a drain trough in the first melting chamber allows you to quickly drain the melt, bypassing the second melting chamber in case of an emergency, and also provides, if necessary, the first melting work independently without a second chamber.
- the slag taphole of the first melting chamber serves to discharge the excess amount of reduced slag with a low content of iron oxides and ensures the continuous operation of the first melting chamber.
- the smaller dimensions of the second melting chamber are caused by significantly less slag compared to the amount of slag in the first melting chamber.
- Combined fuel and oxygen burners of the second melting chamber serve to introduce additional heat into it, if the process does not have enough heat of the exhaust gases passing through it from the first melting chamber, and also to supply oxygen to the melt for decarburization during steel production.
- the level of the refractory hearth of the second melting chamber is 0.30-0.45 m lower than the level of the refractory hearth of the first melting chamber allows you to pour the desired amount of metal intermediate from the first chamber into the second melting chamber and it is better to mix the metal and slag in the second melting chamber when draining. Below 0.30 m, the level of the refractory hearth of the second melting chamber is offered for larger melting chambers, the level of the hearth of the second chamber is 0.45 m lower lower for melting chambers.
- Porous refractory plugs in the refractory hearth of the second melting chamber for injection into the inert gas melt serve to mix the metal and slag during refining and finishing of the metal and accelerate this process.
- a loading hole in the side wall of the second melting chamber body 0.7x0.8 m in size provides the necessary speed for the metered loading of charge materials (fluxes, alloys and deoxidizers) into the second chamber and the required speed of metal refining and finishing processes.
- the hole diameter of 0.8 m is recommended for small-sized melting chambers, with a smaller hole size, the speed of the gases entering the charge heating device substantially increases and the conditions of charge heating are worsened.
- a hole diameter of 1.0 m is recommended for large melting chambers. The diameter of the hole greater than 1.0 m sharply weakens the design of the body of the melting chamber.
- Outlets for draining the finished metal and spent slag ensure the normal high-performance operation of the second melting chamber.
- connection of the charge heating device with a lined gas duct to the mixing chamber for transferring exhaust gases to the mixing chamber, cooling the exhaust gases with air or nitrogen from the secondary cooling system of the melting chambers to 650 ° and the subsequent gas transfer to the waste heat boiler allow the heat of the exhaust gases to be utilized from the charge heater, heat of air or nitrogen from the secondary cooling system of the melting chambers, as well as eliminate the buildup of dust on the walls of the recovery boiler.
- a hermetic charge charge metering device that cuts off the working space of the first melting chamber from the charge heating device and opens only at the time of loading the next portion of the charge into the melting chamber or when the second melting chamber stops, provides exhaust gas removal from the first melting through the second melting chamber, and the melt is heated in the second chamber the heat of these gases leads to a decrease in fuel consumption and increase the technical and economic indicators of the process.
- FIG. 1 shows a top view of a device for the direct production of cast iron or steel from materials containing iron oxides.
- FIG. 2 shows a side view of the device.
- a method for the direct production of metal (cast iron or steel) from materials containing iron oxides is as follows.
- charge materials iron-containing materials, fluxes
- fuel-oxygen burners 4 of the first melting chamber 2 and the second melting chamber 3 for heating the chambers are turned on.
- the heated mixture enters it through the metered charge device 12 and the carbonaceous reducing agent is simultaneously charged, the carbonaceous reducing agent is blown through the opening 9 in the chamber 2 body or injectors (not shown conventionally in Fig. 1).
- the carbonaceous reducing agent is blown through the opening 9 in the chamber 2 body or injectors (not shown conventionally in Fig. 1).
- the accumulated metal intermediate is poured into the melting chamber 3 through the heated lined chute 5, opening the slides 6. Excessive amount of reduced slag with a low content of iron oxides is drained from the melting chamber 2, opening the slag notch, into the slag ladle by chute 10 (in Fig. 2 shown), continuing to supply the charge and the carbon reducing agent to the melting chamber 2.
- the shutters 6 are closed, slag-forming materials are loaded into the melting chamber 3 through verst 13 and produce refining and finishing of cast iron to standard composition and properties.
- the refining slag is updated by draining part of the first slag from the chamber 3, opening the slag notch along the chute 16 into the slag ladle (not shown conditionally in FIGS. 1 and 2).
- the cast iron is poured from the chamber 2 into the casting ladle (not shown in fig. 2), opening a metal notch on the chute 17.
- the final refining slag is left in the melting chamber 3 in order to accelerate the refining and lapping of the next portion of the metal intermediate being drained from the melting chamber 2.
- the melting chamber 3 is heated predominantly by the exhaust gases coming from the melting chamber 2, the fuel-oxygen burners 4 of the melting chamber 3 while ayut at reduced power or turned off completely.
- An inert gas for mixing the melt is continuously supplied to the melting chamber 3.
- the necessary amount of slag (4-4.5% by weight of the intermediate) is induced in it by additives of slag-forming materials through the hole 13.
- decarburization of the melt is carried out, supplying oxygen to the melt with combined fuel-oxygen burners 4 operating in the oxygen tuyere mode, and mixing the melt with an inert gas.
- the necessary metal dephosphorization is carried out with basic oxidized slag. Having finished the decarburization process of the melt, the fuel-oxygen burner-lances are turned off, and the oxidizing slag is drained from the melting chamber 3 through a slag notch along the trench 16 into a slag ladle.
- refining slag is induced by additives of slag-forming and deoxidizing agents through hole 13. Under the refining slag, deoxidation, desulfurization and refinement of the steel to the required composition are carried out, mixing the melt with an inert gas. Then, the finished metal is poured from the melting chamber 3 into the steel pouring ladle along the chute 17, leaving the refining slag in the chamber to accelerate the process of converting the next portion of the metal intermediate into steel. Next, the cycle repeats.
- the melting chamber 2 is emptied when opening the second metal notch. In this case, the metal and slag are quickly drained through the channel 1 1 into the backup casting ladles.
- Patent RU 2242687 "Vanyukov furnace for continuous melting of materials containing non-ferrous and ferrous metals.” Authors: Bystrov
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/RU2012/000704 WO2014035276A1 (ru) | 2012-08-28 | 2012-08-28 | Способ и устройство получения металла из содержащих оксиды железа материалов |
RU2013133211/02A RU2548871C2 (ru) | 2012-08-28 | 2012-08-28 | Способ прямого получения металла из содержащих оксиды железа материалов (варианты) и устройство для его осуществления |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/RU2012/000704 WO2014035276A1 (ru) | 2012-08-28 | 2012-08-28 | Способ и устройство получения металла из содержащих оксиды железа материалов |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014035276A1 true WO2014035276A1 (ru) | 2014-03-06 |
Family
ID=50183962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2012/000704 WO2014035276A1 (ru) | 2012-08-28 | 2012-08-28 | Способ и устройство получения металла из содержащих оксиды железа материалов |
Country Status (2)
Country | Link |
---|---|
RU (1) | RU2548871C2 (ru) |
WO (1) | WO2014035276A1 (ru) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2760199C9 (ru) * | 2020-12-30 | 2021-12-21 | федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") | Агрегат непрерывного получения стали |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01246309A (ja) * | 1988-03-28 | 1989-10-02 | Kawasaki Steel Corp | 高合金鋼の溶製方法 |
US6149709A (en) * | 1997-09-01 | 2000-11-21 | Kabushiki Kaisha Kobe Seiko Sho | Method of making iron and steel |
RU2301835C2 (ru) * | 2002-02-12 | 2007-06-27 | Смс Демаг Акциенгезелльшафт | Способ и устройство для непрерывного производства стали с применением металлического исходного материала |
RU2337971C1 (ru) * | 2007-03-12 | 2008-11-10 | Региональное уральское отделение Академии инженерных наук РФ | Способ производства стали с использованием металлизированного железорудного сырья |
RU2361927C1 (ru) * | 2007-02-12 | 2009-07-20 | Анатолий Тимофеевич Неклеса | Устройство для получения железа или стали из железоокисных материалов |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB923233A (en) * | 1958-06-07 | 1963-04-10 | Roman Rummel | A process and apparatus for smelting metal oxide-containing dusts or ores in finely divided or particulate form |
AT303780B (de) * | 1968-06-24 | 1972-12-11 | Guenter Heitmann Dipl Ing | Verfahren und Vorrichtung zur Erzeugung von Eisenschwamm aus oxydischen Eisenerzen |
RU2299911C1 (ru) * | 2005-12-27 | 2007-05-27 | Общество С Ограниченной Ответственностью Промышленная Компания "Технология Металлов" | Устройство для выплавки металлов или сплавов |
RU2344179C2 (ru) * | 2006-05-05 | 2009-01-20 | Общество С Ограниченной Ответственностью Промышленная Компания "Технология Металлов" | Способ непрерывной переработки содержащих оксиды железа материалов и агрегат для его осуществления |
-
2012
- 2012-08-28 RU RU2013133211/02A patent/RU2548871C2/ru not_active IP Right Cessation
- 2012-08-28 WO PCT/RU2012/000704 patent/WO2014035276A1/ru active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01246309A (ja) * | 1988-03-28 | 1989-10-02 | Kawasaki Steel Corp | 高合金鋼の溶製方法 |
US6149709A (en) * | 1997-09-01 | 2000-11-21 | Kabushiki Kaisha Kobe Seiko Sho | Method of making iron and steel |
RU2301835C2 (ru) * | 2002-02-12 | 2007-06-27 | Смс Демаг Акциенгезелльшафт | Способ и устройство для непрерывного производства стали с применением металлического исходного материала |
RU2361927C1 (ru) * | 2007-02-12 | 2009-07-20 | Анатолий Тимофеевич Неклеса | Устройство для получения железа или стали из железоокисных материалов |
RU2337971C1 (ru) * | 2007-03-12 | 2008-11-10 | Региональное уральское отделение Академии инженерных наук РФ | Способ производства стали с использованием металлизированного железорудного сырья |
Also Published As
Publication number | Publication date |
---|---|
RU2013133211A (ru) | 2015-01-27 |
RU2548871C2 (ru) | 2015-04-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4089677A (en) | Metal refining method and apparatus | |
RU2205878C2 (ru) | Установка и способ (варианты) получения расплавов металла | |
SU1496637A3 (ru) | Способ непрерывного рафинировани стали в электропечи и устройство дл его осуществлени | |
US4605437A (en) | Reactor iron making | |
US5286277A (en) | Method for producing steel | |
WO2010072043A1 (zh) | 熔炼炉和炼钢设备以及炼钢工艺 | |
JP2975260B2 (ja) | 鋼の製造方法 | |
RU2344179C2 (ru) | Способ непрерывной переработки содержащих оксиды железа материалов и агрегат для его осуществления | |
JP2010265485A (ja) | アーク炉の操業方法 | |
US4025059A (en) | Device for the continuous production of steel | |
RU2346056C2 (ru) | Способ прямого производства стали из железосодержащих материалов | |
US5417740A (en) | Method for producing steel | |
RU2548871C2 (ru) | Способ прямого получения металла из содержащих оксиды железа материалов (варианты) и устройство для его осуществления | |
US8557014B2 (en) | Method for making liquid iron and steel | |
RU2380633C1 (ru) | Дуплекс-печь для выплавки марганцевых сплавов из железомарганцевых бедных руд и концентратов и техногенных отходов металлургии | |
RU2610975C2 (ru) | Способ выплавки стали в электродуговой печи | |
JP6468264B2 (ja) | 溶銑保持炉の操業方法 | |
RU2165462C2 (ru) | Двухванный сталеплавильный агрегат и способ выплавки стали в двухванном сталеплавильном агрегате | |
RU2258745C1 (ru) | Способ рафинирования железоуглеродистого расплава | |
Bengtsson et al. | Ironmaking in the Stora rotary furnace | |
WO2007129927A1 (fr) | Procédé de transformation ininterrompue de matériaux contenant des oxydes de fer et installation pour sa mise en oeuvre | |
RU2352644C2 (ru) | Способ выплавки стали в конвертере | |
JPH07332860A (ja) | 竪型迅速溶解炉 | |
WO2009145672A1 (ru) | Способ выплавки ферросплавов и дуплекспечь для его реализации | |
Argenta et al. | Hot metal charging to an EAF at Shaoguan using Consteel® |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2013133211 Country of ref document: RU Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12883745 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12883745 Country of ref document: EP Kind code of ref document: A1 |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12883745 Country of ref document: EP Kind code of ref document: A1 |