EP0882142B1 - Verfahren zur herstellung von flüssigem roheisen oder stahlvorprodukten aus eisenhältigem material - Google Patents
Verfahren zur herstellung von flüssigem roheisen oder stahlvorprodukten aus eisenhältigem material Download PDFInfo
- Publication number
- EP0882142B1 EP0882142B1 EP97911045A EP97911045A EP0882142B1 EP 0882142 B1 EP0882142 B1 EP 0882142B1 EP 97911045 A EP97911045 A EP 97911045A EP 97911045 A EP97911045 A EP 97911045A EP 0882142 B1 EP0882142 B1 EP 0882142B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fine
- fluidized bed
- particulate
- iron
- reduced material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 99
- 239000000463 material Substances 0.000 title claims description 52
- 229910052742 iron Inorganic materials 0.000 title claims description 48
- 238000000034 method Methods 0.000 title claims description 25
- 229910000805 Pig iron Inorganic materials 0.000 title claims description 10
- 239000007788 liquid Substances 0.000 title claims description 8
- 229910000831 Steel Inorganic materials 0.000 title claims description 6
- 239000010959 steel Substances 0.000 title claims description 6
- 239000007789 gas Substances 0.000 claims description 45
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 37
- 239000001301 oxygen Substances 0.000 claims description 37
- 229910052760 oxygen Inorganic materials 0.000 claims description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 229910052799 carbon Inorganic materials 0.000 claims description 20
- 239000007787 solid Substances 0.000 claims description 15
- 239000000969 carrier Substances 0.000 claims description 11
- 239000002893 slag Substances 0.000 claims description 7
- 239000011236 particulate material Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000001914 calming effect Effects 0.000 claims description 3
- 239000011796 hollow space material Substances 0.000 claims 1
- 238000002844 melting Methods 0.000 description 17
- 230000008018 melting Effects 0.000 description 17
- 238000002309 gasification Methods 0.000 description 14
- 239000003245 coal Substances 0.000 description 9
- 239000010419 fine particle Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000003575 carbonaceous material Substances 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 239000000571 coke Substances 0.000 description 3
- 239000013067 intermediate product Substances 0.000 description 2
- 206010012735 Diarrhoea Diseases 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
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
-
- 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
- C21B13/002—Reduction of iron ores by passing through a heated column of carbon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
- C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
Definitions
- the invention relates to a process for the production of liquid pig iron or Steel intermediate products made of fine particulate ferrous material, in particular reduced sponge iron, in a melter, in which with the addition of carbonaceous material and oxygen while forming a reducing gas the iron-containing material in a bed made of solid carbon supports is melted down, if necessary after prior reduction, the fine particulate reduced material and oxygen introduced laterally into the bed are, in the melter gasifier above one formed by solid carbon carriers Fixed bed a fluidized bed made of fine particulate solid carbon carriers and fine particulate iron-containing reduced materia is maintained and that fine particulate reduced material introduced directly into the fluidized bed and there is melted, as well as a plant for performing the method.
- EP-B - 0 010 627 describes a process for the production of liquid pig iron or Steel intermediate products made of particulate, iron-containing material, in particular pre-reduced sponge iron, as well as for the generation of reducing gas in one Smelting gasifier known in which by adding coal and by blowing oxygen-containing gas a fluidized bed of coke particles is formed.
- the oxygenated Gas or pure oxygen is in the lower area of the melter gasifier blown in.
- the particulate ferrous material, especially pre-reduced Sponge iron, and the lumpy coal are fed through charging openings in the hood of the Melter gasifier fed from above, the falling particles are in the fluidized bed slowed down and the iron-containing particles are diarrhea by the Coke fluid bed reduced and melted.
- the melted, covered with slag Metal collects on the bottom of the melter. Metal and slag are through separate tapping holes deducted.
- a method of this type is for processing fine-particle sponge iron not suitable because fine iron sponge due to the strong upward directed Gas flow in the melter would immediately be discharged from this.
- discharge of the finely divided metal carrier is still affected by the temperature in the upper one Area of the melter, i.e. in the area above the meltdown gasification zone, favored, since it is too low to melt, i.e. an agglomeration of the Fine particles at the point of introduction to larger particles that are in the Meltdown gasification zone could sink despite the upward gas flow, ensure.
- lumpy iron ore is obtained Feedstocks directly reduced in a reduction shaft furnace, e.g. by means of the Melting gasification zone formed reducing gas.
- the sponge iron obtained in this way is then fed to the meltdown gasification zone.
- fine ore and / or ore dust such as in an iron and steel mill
- the fine ore and / or the ore dust becomes solid Carbon carriers of a dust burner working in the melting gasification zone fed and implemented in a substoichiometric combustion reaction.
- the process allows efficient processing of fine ore from a steel mill and / or ore dust, etc. up to the order of 20 to 30% of the Total ore use, and thus a combined processing of piece ore and fine ore.
- the disadvantage here is that there are areas in the melting gasification zone Excess metal and areas can come with an excess of carbon.
- EP-A-0 594 557 discloses a method of the type described at the outset, in which an iron sponge fine grain fraction is introduced directly into the fluidized bed formed in the melter gasifier by the melter gasification zone by means of a conveying gas.
- an iron sponge fine grain fraction is introduced directly into the fluidized bed formed in the melter gasifier by the melter gasification zone by means of a conveying gas.
- This is disadvantageous;
- the fluidized bed can become blocked, which leads to insufficient gas flow and possibly to a gas build-up and, as a result, to eruptive gas breakthroughs with which the blocked fluidized bed is broken up.
- the gasification process for the carbon carriers and also the smelting process for the reduced iron ore are severely disrupted.
- EP-A-0 143 102 relates to the production of molten pig iron particulate ferrous material in a melter in which under Supply of solid carbonaceous material and oxygen to form Reducing gas from a lower fixed bed and a fluidized bed arranged above it carbonaceous material are formed.
- the ferrous material and the oxygen are placed directly into the fluidized bed via laterally arranged charging pipes or nozzle pipes introduced and melted there.
- the invention aims to avoid the disadvantages and described above Difficulties and is the task of a method of the type described above and to create an installation for carrying out the method, in which processing of fine particulate iron-containing and at least partially reduced material without one It is possible to require briquetting and, on the one hand, discharge of the supplied Fine particles reliably generated by the reducing gas generated in the melting gasification zone is avoided and on the other hand the gasification process undisturbed by the introduced fine particulate reduced material can run off. That is, there should be a burden on the Melting gasification zone due to the fine particulate iron-containing reduced material be avoided, etc. even if it contains up to 100% fine particulate iron reduced material is introduced into the melter.
- This object is achieved according to the invention in a method of the type described in the introduction solved in that the reduced material in direct contact with oxygen is introduced, and the fine particulate reduced material before the introduction into the Fluidized bed collected in a collecting container to form a fluidized bed and out of the Fluidized bed further into the fluidized bed by means of a conveying and / or fluidizing gas is promoted.
- the fine particle shape is reduced Material introduced into the fluidized bed by means of a fluidizing gas, preferably blown in.
- fine particulate reduced material before introduction into the fluidized bed with formation a fluidized bed collected in a container and from the fluidized bed by means of a Conveying and / or fluidizing gas further promoted in the fluidized bed.
- the fluidized bed forms a lock maintaining the pressure difference.
- a conveying gas for the particulate is expediently placed in the fluidized bed reduced material under pressure, preferably with a pressure higher than that in the fluidized bed prevailing pressure.
- a melter gasifier for the addition of carbon-containing material, iron-containing reduced fine particulate material or oxygen, a derivative for the extraction of the generated Reduction gas and also with a slag and iron melt rack, whereby a lower section of the melting gasifier for collecting the molten pig iron and the liquid slag and an overlying middle section for receiving a Fixed bed made of solid carbon carriers and then an upper section for receiving serve a fluidized bed and above it a calming room is provided, is in the amount of Fluidized bed in the side wall of the melter gasifier at least one confluence Delivery line for fine particulate reduced material provided, one Oxygen supply line immediately adjacent to the delivery line for the particulate reduced material is provided and the delivery line for the fine particulate reduced material from a collecting container serving as a fluidized bed lock with a fluidized bed formed therein leads to the melter gasifier.
- the delivery line for the fine-particulate reduced material is preferably included Fluidizing gas acted upon.
- the fluidized bed also advantageously protrudes into the melter Oxygen supply lance, its outlet for oxygen at the level of the fluidized bed and comes to lie centrally in cross-section.
- the oxygen supply line advantageously passes through the delivery line for the fine particulate reduced material centrally with the formation of a ring conveyor for the fine particulate reduced material and flows into the melter.
- FIGS. 1 and 2 each have a melter gasifier illustrate in vertical section in a schematic representation.
- a melter gasifier 1 solid carbon-containing material 2, such as coal, and oxygen-containing gas, by gasifying the coal 2, a reducing gas is generated which via a discharge line 3 to a fluidized bed reactor, not shown, in the fine ore is reduced to sponge iron 4.
- the melter gasifier 1 has one Supply line 5 for the solid carbon carriers 2, a supply line 6 for oxygen-containing gases, a supply line 7 for sponge iron and optionally supply lines for at Room temperature liquid or gaseous carbon carriers, such as hydrocarbons, as well for burned supplements.
- the melter gasifier 1 collects in the bottom region 8 molten pig iron 9 and molten slag 10, which are tapped 11 be tapped.
- the iron ore reduced to sponge iron 4 in the fluidized bed reactor is, if appropriate together with burned aggregates, via a conveyor from the Fluidized bed reactor, for example by means of discharge screws, and the Melter gasifier 1 supplied.
- Both the lead 5 for the solid carbon carrier 2 as the discharge line 3 for the reducing gas are also in the dome area 12 of the melter gasifier 1 provided, etc. to several and approximately radially symmetrical arrangement.
- the discharge line 3 opens into a solids separator 13 which is designed as a hot cyclone.
- a hot cyclone 13 the fine particles 14, entrained with the reducing gas, deposited like coal and sponge iron and with a down pipe 15 into a collecting container 16 fluidized bed 18 formed therein.
- a feed line opens into the fluidized bed 18 of the collecting container 16 serving as a fluidized bed lock 17 for reduced fine-particulate material, namely that made from fine ore Sponge iron 4, which is withdrawn from the fluidized bed reactor.
- the feed line 7 for the sponge iron 4 leads from the fluidized bed 18 of the collecting container 16 into the Melting gasifier 1 at the level of that in the melting gasifier 1 above a fixed bed 20 carbon-containing material trained fluidized bed 21.
- This fluidized bed 21 is from fine particulate carbonaceous material 2 and sponge iron 4 are formed.
- the Carrier gas for maintaining the fluidized bed 21 is made from the fixed bed 20 escaping reducing gas, which is caused by the gasification of the carbonaceous material 2 is generated, formed.
- the feed line 7, which is designed as a delivery line for the sponge iron 4, is at least in the mouth region 22 acted upon by fluidizing gas which the Sponge iron 4 in the melter 1 promotes.
- an oxygen supply line 23 is provided, the mouth 24 just above the annular mouth 25 of the delivery line 7 into the melter gasifier 1 protrudes.
- the oxygen jet introduced through the oxygen supply line 23 is from the supplied iron sponge 4 surround peripherally, i.e. enclosed. This is where it comes from immediately in the fluidized bed 21 as a result of the high temperature which arises Melting the sponge iron 4.
- a plurality of collecting containers 16 with fluidized beds 18 are preferably distributed around the melter gasifier 1 arranged so that a radially symmetrical and across the cross section of the Melting gasifier 1 is even introduction of the sponge iron 4 is given.
- can still between the mouths 25 of the sponge iron delivery lines 7 further oxygen supply lines 26 open into the melter gasifier 1, which increase the effectiveness of melting further increase.
- an oxygen lance 27 is provided, the mouth 28 of which is approximately is provided in the center and just above the fixed bed 20 in the fluidized bed 21.
- the Oxygen lance 27 expediently projects centrally into the melter 1 from above arranged.
- the adjustment of the total height 29 from the fixed bed 20 and the fluidized bed 21 takes place in such a way that a reducing gas temperature in that provided above the fluidized bed 21 Calming room 30 of about 1050 ° C.
- the location of the fixed bed surface can be changed the choice of the supplied coal grain and / or by dividing the total oxygen can be influenced on the fixed bed 20 and the fluidized bed 21.
- a conveying gas which For example, is formed by cooled reducing gas in the upper part of the collecting container 16 supplied via a line 31, etc. in such an amount that the mouth 25 a cavity 32 in the fluidized bed 21 by the impulse of the entering Gases arises.
- the invention is not limited to that shown in the drawing Embodiments, but can be modified in various ways. So it has to Oxygen supply line 23 may not be provided coaxially in the supply line 7. The important thing is immediately after the sponge iron 4 enters the melter 1 contact with oxygen, so that the melting process of the sponge iron 4 can take place completely in the fluidized bed 21. To achieve this, the Supply line 7 and the oxygen supply line 23 may be arranged immediately adjacent if the best result is also achieved when the sponge iron 4 emits the oxygen jet encloses at least in the region of the mouth 25.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Description
Hierdurch werden der Vergasungsprozeß für die Kohlenstoffträger und auch der Einschmelzprozeß für das reduzierte Eisenerz stark gestört.
Claims (11)
- Verfahren zur Herstellung von flüssigem Roheisen (9) oder Stahlvorprodukten aus feinteilchenförmigem eisenhältigem Material (4), insbesondere reduziertem Eisenschwamm, in einem Einschmelzvergaser (1), in dem unter Zuführung von kohlenstoffhältigem Material und Sauerstoff bei gleichzeitiger Bildung eines Reduktionsgases in einem aus festen Kohlenstoffträgern (2) gebildeten Bett (20, 21) das eisenhältige Material (4) eingeschmolzen wird, gegebenenfalls nach vorheriger Fertigreduktion, wobei das feinteilchenförmige reduzierte Material (4) und Sauerstoff in das Bett (20, 21) seitlich eingebracht werden, im Einschmelzvergaser (1) oberhalb eines von festen Kohlenstoffträgern (2) gebildeten Festbettes (20) ein Wirbelbett (21) aus feinteilchenförmigen festen Kohlenstoffträgern (2) und feinteilchenförmigem eisenhältigem reduziertem Material (4) aufrechterhalten wird und das feinteilchenförmige reduzierte Material (4) direkt in das Wirbelbett (21) eingebracht und dort aufgeschmolzen wird, wobei das reduzierte Material (4) in unmittelbarem Kontakt mit Sauerstoff eingebracht wird, und das feinteilchenförmige reduzierte Material (4) vor dem Einbringen in das Wirbelbett (21) unter Bildung einer Wirbelschicht (18) in einem als Wirbelschichtschleuse dienenden Sammelbehälter (16) gesammelt und aus der Wirbelschicht (18) mittels eines Förder- und/oder Fluidisierungsgases weiter in das Wirbelbett (21) gefördert wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das feinteilchenförmige reduzierte Material (4) mittels eines Fluidisierungsgases in das Wirbelbett (21) eingebracht, vorzugsweise eingeblasen wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in das Wirbelbett (21) zusätzlich im Zentrumsbereich desselben Sauerstoff eingeblasen wird, vorzugsweise von oben.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das feinteilchenförmige reduzierte Material (4) unter Druck in das Wirbelbett (21) mittels eines Fördergases eingeblasen wird, sodaß sich an der Mündung in das Wirbelbett (21) ein für das feinteilchenförmige reduzierte Material (4) freier Hohlraum (32) bildet.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das feinteilchenförmige Material (4) in Form einer einen Sauerstoffstrahl peripher umgebenden einen ringförmigen Querschnitt aufweisenden und den Sauerstoff umschließenden Strähne eingebracht wird.
- Verfahren nach einem oder mehreren der Ansprüche 4 oder 5, dadurch gekennzeichnet, daß in die Wirbelschicht (18) ein Fördergas für das feinteilchenförmige reduzierte Material (4) unter Druck, vorzugsweise mit einem Druck höher als der im Wirbelbett (21) herrschende Druck, zugeführt wird.
- Anlage zur Durchführung des Verfahrens nach einem oder mehreren der Ansprüche 1 bis 6, mit einem Einschmelzvergaser (1) mit Zuleitungen (5, 6, 7) für die Zugabe von kohlenstoffhältigem Material (2), eisenhältigem reduziertem feinteilchenförmigem Material (4) bzw. Sauerstoff, einer Ableitung (3) für den Abzug des erzeugten Reduktionsgases sowie weiters mit einem Schlacken- und Eisen-Schmelzenabstich (11), wobei ein unterer Abschnitt (8) des Einschmelzvergasers (1) zum Auffangen des geschmolzenen Roheisens (9) und der flüssigen Schlacke (10) und ein darüber liegender mittlerer Abschnitt zur Aufnahme eines Festbettes (20) aus festen Kohlenstoffträgern und anschließend ein oberer Abschnitt zur Aufnahme eines Wirbelbettes (21) dienen sowie darüber ein Beruhigungsraum (30) vorgesehen ist, in Höhe des Wirbelbettes (21) in der Seitenwand des Einschmelzvergasers (1) mindestens eine Einmündung einer Förderleitung (7) für feinteilchenförmiges reduziertes Material (4) vorgesehen ist, wobei eine Sauerstoffzuführleitung (23) unmittelbar benachbart zur Förderleitung (7) für das feinteilchenförmige reduzierte Material (4) vorgesehen ist und die Förderleitung (7) für das feinteilchenförmige reduzierte Material (4) aus einem als Wirbelschichtschleuse dienenden Sammelbehälter (16) mit darin gebildeter Wirbelschicht (18) zum Einschmelzvergaser (1) führt.
- Anlage nach Anspruch 7, dadurch gekennzeichnet, daß die Förderleitung (7) für das feinteilchenförmige reduzierte Material (4) mit Fluidisierungsgas beaufschlagbar ist.
- Anlage nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß in den Einschmelzvergaser (1) zusätzlich eine Sauerstoffzuführlanze (27) ragt, deren Austrittsöffnung (28) für den Sauerstoff in der Höhe des Wirbelbetts (21) und querschittsmäßig zentral zu liegen kommt.
- Anlage nach einem oder mehreren der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Sauerstoffzufuhrleitung (23) die Förderleitung (7) für das feinteilchenförmige reduzierte Material zentral unter Bildung eines Ringförderraumes für das feinteilchenförmige reduzierte Material (4) durchsetzt und in den Einschmelzvergaser (1) mündet.
- Anlage nach einem oder mehreren der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß in der Sammelbehälter (16) mit darin gebildeter Wirbelschicht (18) eine ein Fördergas für das feinteilchenförmige reduzierte Material (4) zuführende Leitung (31) mündet.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT196496 | 1996-11-08 | ||
AT0196496A AT404022B (de) | 1996-11-08 | 1996-11-08 | Verfahren und anlage zur herstellung von flüssigem roheisen oder stahlvorprodukten aus eisenhältigemmaterial |
AT1964/96 | 1996-11-08 | ||
PCT/AT1997/000239 WO1998021371A1 (de) | 1996-11-08 | 1997-11-05 | Verfahren zur herstellung von flüssigem roheisen oder stahlvorprodukten aus eisenhältigem material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0882142A1 EP0882142A1 (de) | 1998-12-09 |
EP0882142B1 true EP0882142B1 (de) | 2001-10-04 |
Family
ID=3524870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97911045A Expired - Lifetime EP0882142B1 (de) | 1996-11-08 | 1997-11-05 | Verfahren zur herstellung von flüssigem roheisen oder stahlvorprodukten aus eisenhältigem material |
Country Status (12)
Country | Link |
---|---|
US (1) | US6454833B1 (de) |
EP (1) | EP0882142B1 (de) |
KR (1) | KR100466631B1 (de) |
AT (1) | AT404022B (de) |
AU (1) | AU733396C (de) |
BR (1) | BR9707117A (de) |
CA (1) | CA2242392A1 (de) |
DE (1) | DE59704790D1 (de) |
RU (1) | RU2192475C2 (de) |
UA (1) | UA44347C2 (de) |
WO (1) | WO1998021371A1 (de) |
ZA (1) | ZA9710040B (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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AT408991B (de) * | 2000-04-28 | 2002-04-25 | Voest Alpine Ind Anlagen | Verfahren und anlage zur herstellung einer metallschmelze |
KR100972195B1 (ko) * | 2006-05-17 | 2010-07-23 | 주식회사 포스코 | 탄화수소 함유가스 취입에 의한 용철제조방법 및 이를이용한 용철제조장치 |
US8199790B2 (en) * | 2007-11-02 | 2012-06-12 | Plasma Waste Recycling, Inc. | Reactor vessel for plasma gasification |
EP2664681A1 (de) | 2012-05-16 | 2013-11-20 | Siemens VAI Metals Technologies GmbH | Verfahren und Vorrichtung zum Einbringen von feinteilchenförmigem Material in die Wirbelschicht eines Reduktionsaggregates |
EP2905345A1 (de) | 2014-02-10 | 2015-08-12 | Primetals Technologies Austria GmbH | Pneumatische Erzchargierung |
ITUA20163986A1 (it) * | 2016-05-31 | 2017-12-01 | Tenova Spa | Metodo ed apparato per la produzione di ghisa, ghisa prodotta secondo detto metodo |
PL3548640T3 (pl) | 2016-12-02 | 2023-01-30 | Tenova S.P.A. | Przekształcalny piec hutniczy i modułowa instalacja hutnicza zawierająca wymieniony piec do przeprowadzania procesów produkcyjnych do produkcji metali w stanie stopionym, a zwłaszcza stali albo żeliwa |
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US3142430A (en) * | 1963-03-15 | 1964-07-28 | American Can Co | Carton |
GB1283333A (en) * | 1969-01-13 | 1972-07-26 | Sikob Ab | Folding container having triangular cross section |
FR2053427A5 (de) * | 1969-07-08 | 1971-04-16 | Dupuis Jean | |
DE2843303C2 (de) | 1978-10-04 | 1982-12-16 | Korf-Stahl Ag, 7570 Baden-Baden | Verfahren und Anlage zur Erzeugung von flüssigem Roheisen und Reduktionsgas in einem Einschmelzvergaser |
US4457777A (en) * | 1981-09-07 | 1984-07-03 | British Steel Corporation | Steelmaking |
US4419965A (en) * | 1981-11-16 | 1983-12-13 | Foster Wheeler Energy Corporation | Fluidized reinjection of carryover in a fluidized bed combustor |
US4457289A (en) * | 1982-04-20 | 1984-07-03 | York-Shipley, Inc. | Fast fluidized bed reactor and method of operating the reactor |
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AT382165B (de) | 1983-08-18 | 1987-01-26 | Voest Alpine Ag | Verfahren zur herstellung von fluessigem roheisen oder stahlvorprodukten sowie vorrichtung zur durchfuehrung des verfahrens |
FR2562506B3 (fr) * | 1984-04-10 | 1986-07-18 | Socar | Bac de manutention en un materiau semi-rigide |
AT381116B (de) * | 1984-11-15 | 1986-08-25 | Voest Alpine Ag | Verfahren zur herstellung von fluessigem roheisen oder stahlvorprodukten sowie vorrichtung zur durchfuehrung des verfahrens |
DE3504346C2 (de) | 1985-02-06 | 1986-11-27 | Korf Engineering GmbH, 4000 Düsseldorf | Verfahren und Vorrichtung zur Erzeugung von Eisenschwammpartikeln und flüssigem Roheisen |
DE3535572A1 (de) | 1985-10-03 | 1987-04-16 | Korf Engineering Gmbh | Verfahren zur herstellung von roheisen aus feinerz |
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FI873735A0 (fi) * | 1987-08-28 | 1987-08-28 | Ahlstroem Oy | Foerfarande och anordning foer foergasning av fast kolhaltigt material. |
EP0449891B1 (de) | 1988-12-20 | 1996-10-30 | Cra Services Limited | Herstellung von eisen und stahl in einer duplex-verhüttungsanlage und anlage zur vorreduzierung von oxidfestkörpern in der schwebe |
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DE4041936C1 (de) | 1990-12-27 | 1992-09-24 | Deutsche Voest-Alpine Industrieanlagenbau Gmbh, 4000 Duesseldorf, De | |
JPH059526A (ja) * | 1991-06-27 | 1993-01-19 | Mitsubishi Heavy Ind Ltd | 銑鉄製造装置 |
US5098014A (en) * | 1991-08-01 | 1992-03-24 | Jefferson Smurfit Corporation | Collapsible, self-locking, paperboard carton |
AT401777B (de) * | 1992-05-21 | 1996-11-25 | Voest Alpine Ind Anlagen | Verfahren und anlage zur herstellung von flüssigen roheisen oder flüssigen stahlvorprodukten |
AT404735B (de) * | 1992-10-22 | 1999-02-25 | Voest Alpine Ind Anlagen | Verfahren und anlage zur herstellung von flüssigem roheisen oder flüssigen stahlvorprodukten |
KR970009084B1 (ko) * | 1994-12-29 | 1997-06-05 | 김만제 | 탄소성분을 포함한 미분체 용융장치 및 이를 이용한 미분체 용융방법 |
AT404138B (de) * | 1996-10-08 | 1998-08-25 | Voest Alpine Ind Anlagen | Verfahren zur herstellung von flüssigem roheisen oder stahlvorprodukten sowie anlage zur durchführung des verfahrens |
-
1996
- 1996-11-08 AT AT0196496A patent/AT404022B/de not_active IP Right Cessation
-
1997
- 1997-11-05 WO PCT/AT1997/000239 patent/WO1998021371A1/de active IP Right Grant
- 1997-11-05 DE DE59704790T patent/DE59704790D1/de not_active Expired - Fee Related
- 1997-11-05 KR KR1019980705241A patent/KR100466631B1/ko not_active IP Right Cessation
- 1997-11-05 AU AU48557/97A patent/AU733396C/en not_active Ceased
- 1997-11-05 UA UA98073478A patent/UA44347C2/uk unknown
- 1997-11-05 RU RU98114827/02A patent/RU2192475C2/ru not_active IP Right Cessation
- 1997-11-05 CA CA002242392A patent/CA2242392A1/en not_active Abandoned
- 1997-11-05 BR BR9707117A patent/BR9707117A/pt not_active IP Right Cessation
- 1997-11-05 US US09/101,176 patent/US6454833B1/en not_active Expired - Fee Related
- 1997-11-05 EP EP97911045A patent/EP0882142B1/de not_active Expired - Lifetime
- 1997-11-07 ZA ZA9710040A patent/ZA9710040B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
EP0882142A1 (de) | 1998-12-09 |
ATA196496A (de) | 1997-12-15 |
WO1998021371A1 (de) | 1998-05-22 |
UA44347C2 (uk) | 2002-02-15 |
DE59704790D1 (de) | 2001-11-08 |
KR19990077105A (ko) | 1999-10-25 |
ZA9710040B (en) | 1998-05-25 |
AT404022B (de) | 1998-07-27 |
AU733396C (en) | 2002-06-06 |
AU733396B2 (en) | 2001-05-10 |
CA2242392A1 (en) | 1998-05-22 |
KR100466631B1 (ko) | 2005-06-02 |
BR9707117A (pt) | 1999-07-20 |
US6454833B1 (en) | 2002-09-24 |
RU2192475C2 (ru) | 2002-11-10 |
AU4855797A (en) | 1998-06-03 |
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