• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to the field of iron and steel intermediates from iron-containing material. The aim of the invention is the use of cheap fuel when using coal containing Sf less than 80%. Heat is additionally supplied to the melter gas generator by burning and / or gasifying coal particles separated from the reducing gas over the supply lines. 2 sec. f-ly and 2 h, p. f-ly, 2 ill. yo
    公开号:SU1438615A3
    申请号:SU853977508
    申请日:1985-11-14
    公开日:1988-11-15
    发明作者:Хаук Рольф；Папст Геро；Лангнер Клаус；Нагл Михаэль；Кепплингер Вернер；Зайрленер Леопольд
    申请人:Фоест- Альпине Аг,(Фирма)；Корф Инжинеринг Гмбх (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to a method for producing liquid iron and steel intermediates from iron-containing material in the form of particles, in particular from previously reduced sponge iron, as well as the production of a reducing gas in a smelting gasifier, through the addition of containing components.
    The aim of the invention is the use of cheap fuel when using coal containing Sfu less than 80% .15
    Fig. 1 schematically shows a melter gasifier with auxiliary devices, front view; in fig. 2 - temperature profile in the smelter gasifier during operation 20 with high-grade coal and with low-grade coal.
    The device contains a melting gasifier with a refractory lining, having lower, middle and widening-25 upper parts. The lower section is designed to receive molten metal and slag and is equipped with a vent hole for the melt and slag. In the middle section, there are: - 30 reny supply lines 2 for oxygen, with the help of which a vortex layer 3 of coke particles is formed, | Supported over a solid base 4 "The upper expanded section 3 is equipped with supply lines 5 and 6 for piece coal and sponge gland respectively. In addition, in the upper part, a discharge pipe 7 for a reducing gas-40 gas is provided.
    Gasification burners are provided above supply lines 2.
    in two horizontal planes one above the other, with the burners located around the perimeter of the melting gasifier with a distribution in the form of a crown (in Fig. 1. one burner is shown). The individual burners 8 of the lower plane are located in the lower zone of the vortex layer, and the upper plane is slightly higher than the vortex layer (the burners are indicated by 9). Each gas supply burner has one supply
    I pipe 10, 11, 12, 13 for dust-I-visible fuel and for oxygen, respectively.
    The fuel supply lines 10 and 1I are in conjunction with the collection container 14, and the supply of dust- and left-fuel fuel is carried out using a working gas supplied from the pipeline 15. The collection container 14 is loaded from a hot cyclone 16. A reducing crude gas is introduced into the hot cyclone 16 from the discharge pipe 7 and cleaned of solids consisting mainly of coal particles 17. The purified reducing gas is removed through the pipeline 18 and supplied to the shaft furnace direct reduction.
    In order to control the operation of the burners 8 and 9, a temperature measuring device 19 is connected to the outlet pipe 7 for the reducing crude gas, which is electrically connected to the control loop 20, 21. The valves 22 and 23 are actuated depending on the measured temperature , and at too low a temperature, the burners 9 of the upper plane are loaded, and at too high a temperature, the burners 8 of the lower plane are loaded.
    FIG. 2 shows the temperature profile along the height of the melting gasifier, and on the ordinate, its height is plotted and on the abscissa - temperature. The continuous lines show changes in the temperature of the added carbon and the resulting gas when using high-grade coal with a content of approximately 80%, a volatile content of 10%, soot 5% and water 5%, the dashed curves show the change when using a low-grade coal with a C content of 50% , the content of volatile components is 25%, ash 20% and water 5%. Line 24 shows the temperature at which the coal is used, line 25 shows the temperature after dewatering, line 26 shows the temperature at the start of gasification, and line 27 indicates the final temperature.
    As can be seen from FIG. 2, a change in the temperature of the carbon carrier of a lower grade and the gas produced in this way can be equated to a change in the temperature of the coal 4, respectively, of the gas resulting from the use of high grade coal.
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    权利要求:
    Claims (4)
    [1]
    Claim
    1 . A method for producing molten iron or a steel intermediate from a particle-like iron-containing material, in particular from pre-reduced sponge iron, which includes producing a reducing gas in a melting gasifier, supplying coal to it and injecting an oxygen-containing gas to form a fluidized bed of coke particles, which is different in that, in order to use cheaper fuel 15 by using coal with a content of less than 80 microseconds Sf%, further higher level of blowing the oxygen-containing gas blown into the melter gasifier selected 2 0 from the exhaust gas of coal particles.
    [2]
    2. The method of pop. 1, characterized in that when the temperature of the exhaust reducing gas above a predetermined particle of coal 25 is increased, it is blown above the level of blowing of oxygen-containing gas, and when it is reduced, the coal particles are blown above the level of the fluidized bed.
    [3]
    3. A device for producing liquid cast iron or steel intermediate from a particle-like material containing lezo, containing a melter gasifier with refractory lining, with openings for supplying coal and iron-containing material, a pipe for extracting reducing gases, trays for discharging slag and molten metal, lances for blowing oxygen-containing gas, characterized in that it is additionally equipped * with burners with pipelines for blowing pulverized fuel together with oxygen, a cyclone and a tank - dust collector, which are connected in series, and the dust collector tank is connected to the pipeline for injecting pulverized fuel, and the cyclone is connected to the pipeline for extracting reducing gas, the first row of burners installed above the tuyeres for blowing oxygen-containing gas, and the second row of burners installed above the first number of burners.
    [4]
    4. The device according to claim 3, characterized in that a temperature measuring sensor is installed on the reducing gas outlet pipe, and valves are installed on the pulverized fuel injection pipe to the burners, which are electrically connected to the temperature sensor through the control loop.
    1438615 '
    FIG. 2
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    同族专利:
    公开号 | 公开日
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    EP0182775A2|1986-05-28|
    BR8505748A|1986-08-12|
    ATA361384A|1986-01-15|
    AU4920485A|1986-05-22|
    DD243716A5|1987-03-11|
    US4728360A|1988-03-01|
    IN165169B|1989-08-19|
    ZA858343B|1986-07-30|
    KR930009971B1|1993-10-13|
    CN1004359B|1989-05-31|
    KR860004150A|1986-06-18|
    CN85108501A|1986-05-10|
    JPH0143804B2|1989-09-22|
    EP0182775B1|1989-08-30|
    DE3572694D1|1989-10-05|
    US4805880A|1989-02-21|
    AU574854B2|1988-07-14|
    CA1257774A|1989-07-25|
    JPS61119611A|1986-06-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1186887B|1959-06-18|1965-02-11|Demag Elektrometallurgie Gmbh|Process and device for refining fine-grain iron ores in an electrically heated floating bed made of fine coal|
    DE2843303C2|1978-10-04|1982-12-16|Korf-Stahl Ag, 7570 Baden-Baden|Process and plant for the production of liquid pig iron and reducing gas in a melter gasifier|
    US4316739A|1979-07-16|1982-02-23|Midrex Corporation|Method for producing molten iron|
    US4248626A|1979-07-16|1981-02-03|Midrex Corporation|Method for producing molten iron from iron oxide with coal and oxygen|
    AT367453B|1980-04-03|1982-07-12|Voest Alpine Ag|METHOD AND DEVICE FOR PRODUCING LIQUID GUT IRON OR STEEL PRE-MATERIAL|
    DE3034539C2|1980-09-12|1982-07-22|Korf-Stahl Ag, 7570 Baden-Baden|Method and device for the direct production of liquid pig iron from lumpy iron ore|
    DE3328373A1|1982-11-15|1984-05-17|Korf Engineering GmbH, 4000 Düsseldorf|METHOD AND SYSTEM FOR THE DIRECT PRODUCTION OF SPONGE IRON PARTICLES AND LIQUID PIPE IRON FROM PIECE IRON ORE|
    AT378970B|1982-12-21|1985-10-25|Voest Alpine Ag|METHOD AND DEVICE FOR THE PRODUCTION OF LIQUID PIPE IRON OR STEEL PRE-PRODUCTS|
    AT376241B|1983-01-03|1984-10-25|Voest Alpine Ag|METHOD FOR MELTING AT LEAST PARTLY REDUCED IRON ORE|
    AT376243B|1983-01-19|1984-10-25|Voest Alpine Ag|METHOD FOR MELTING AT LEAST PARTLY REDUCED IRON ORE|
    AT382165B|1983-08-18|1987-01-26|Voest Alpine Ag|METHOD FOR THE PRODUCTION OF LIQUID PIPE IRON OR STEEL PRE-PRODUCTS AND DEVICE FOR IMPLEMENTING THE METHOD|
    AT388388B|1983-11-24|1989-06-12|Voest Alpine Ag|METHOD AND DEVICE FOR MELTING IRON IN A MELT-UP CARBURETTOR|
    DE3438487C2|1984-10-17|1987-10-15|Korf Engineering Gmbh, 4000 Duesseldorf, De|AT387038B|1986-11-25|1988-11-25|Voest Alpine Ag|METHOD AND SYSTEM FOR RECOVERING ELECTRICAL ENERGY IN ADDITION TO THE PRODUCTION OF LIQUID PIPE IRON|
    DE3787017T2|1987-06-30|1993-11-25|Kawasaki Steel Co|Method and device for producing liquid metal from ore particles.|
    DE3737262C2|1987-11-03|1990-10-18|Deutsche Voest-Alpine Industrieanlagenbau Gmbh, 4000 Duesseldorf, De|
    AT388390B|1987-11-12|1989-06-12|Voest Alpine Ag|METHOD FOR DEZINCIFYING THE FLOW OF MATERIAL WHEN OPERATING A PLANT FOR PRODUCING RAW IRON|
    US5402990A|1990-06-14|1995-04-04|Nabi; Ghulam|Steel making plant|
    DE4041936C1|1990-12-27|1992-09-24|Deutsche Voest-Alpine Industrieanlagenbau Gmbh, 4000 Duesseldorf, De|
    DE4108283A1|1991-03-14|1992-09-17|Kortec Ag|METHOD FOR PRODUCING LIQUID METAL FROM FINE-GRAIN METAL OXIDE PARTICLES, AND REDUCTION AND MELTING STOVES FOR CARRYING OUT THE METHOD|
    AT401777B|1992-05-21|1996-11-25|Voest Alpine Ind Anlagen|METHOD AND INSTALLATION FOR THE PRODUCTION OF LIQUID GUT IRON OR LIQUID STEEL PRE-PRODUCTS|
    US5397376A|1992-10-06|1995-03-14|Bechtel Group, Inc.|Method of providing fuel for an iron making process|
    US6197088B1|1992-10-06|2001-03-06|Bechtel Group, Inc.|Producing liquid iron having a low sulfur content|
    US5320676A|1992-10-06|1994-06-14|Bechtel Group, Inc.|Low slag iron making process with injecting coolant|
    US5354356A|1992-10-06|1994-10-11|Bechtel Group Inc.|Method of providing fuel for an iron making process|
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    US5958107A|1993-12-15|1999-09-28|Bechtel Croup, Inc.|Shift conversion for the preparation of reducing gas|
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    法律状态:
    2007-09-20| REG| Reference to a code of a succession state|Ref country code: RU Ref legal event code: MM4A Effective date: 20031115 |
    优先权:
    申请号 | 申请日 | 专利标题
    AT361384A|AT381116B|1984-11-15|1984-11-15|METHOD FOR THE PRODUCTION OF LIQUID PIPE IRON OR STEEL PRE-PRODUCTS AND DEVICE FOR IMPLEMENTING THE METHOD|
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