EP1013778A1 - Verfahren und Vorrichtung zur Erzeugung von Metall aus Metallerzen - Google Patents
Verfahren und Vorrichtung zur Erzeugung von Metall aus Metallerzen Download PDFInfo
- Publication number
- EP1013778A1 EP1013778A1 EP99102445A EP99102445A EP1013778A1 EP 1013778 A1 EP1013778 A1 EP 1013778A1 EP 99102445 A EP99102445 A EP 99102445A EP 99102445 A EP99102445 A EP 99102445A EP 1013778 A1 EP1013778 A1 EP 1013778A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plastic
- shut
- transport line
- lance
- transport
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000002184 metal Substances 0.000 title claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 77
- 229920003023 plastic Polymers 0.000 claims abstract description 77
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 23
- 238000007664 blowing Methods 0.000 claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 229910000805 Pig iron Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005243 fluidization Methods 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 239000002817 coal dust Substances 0.000 description 8
- 239000003921 oil Substances 0.000 description 7
- 239000000571 coke Substances 0.000 description 5
- 238000002309 gasification Methods 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000013502 plastic waste Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000010742 number 1 fuel oil Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003077 lignite Substances 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
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010816 packaging waste Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
- C21B5/023—Injection of the additives into the melting part
Definitions
- the invention relates to a method and an apparatus for producing metal from metal ores, in particular pig iron from iron ore, in which the metal oxides containing ore with a carbon and / or hydrogen (and possibly their compounds) containing reducing gas brought into reaction contact is, which previously from solid carbon and / or hydrocarbonaceous Substances was obtained.
- the reduced metal ore then enters a smelting process. That for the reduction required gas is in the area of the reduction and melting process obtained by using carbonaceous substances (e.g. coke, coal, oil, natural gas) are added to the zone of the already reduced and heated metal, whereby with the addition of (air) oxygen a decomposition or conversion into carbon-containing gas takes place, which is fed to the previous reduction becomes.
- carbonaceous substances e.g. coke, coal, oil, natural gas
- the conventional blast furnace process in which in the blast furnace of Continuous from top to bottom - both the reduction of the metal ore and the formation of the reducing gas and the subsequent melt liquefaction of the metal takes place.
- iron ore is aggregated Coke added as a carbon carrier.
- Blown material oil or coal dust
- plastic waste also in organically and / or inorganically contaminated Form, usable as a supplier for the components of the reducing gas do.
- Plastic waste is constantly accumulating in large quantities and is serious Disposal problem. It is mostly, if not exclusively, in solid form, be it as - often heavily contaminated - packaging waste as a waste or similar in the course of the production of plastic objects.
- the invention provides that those referred to in the method of the beginning Genus for the extraction of the reducing gas supplied carbon and / or hydrocarbonaceous substances, at least partially of plastic in crushed, fluidized form as an agglomerate in the wind power in the rack of the metallurgical shaft furnace, in particular a blast furnace become. This happens via lances, which protrude into the shaft furnace and which are connected to a transport line. Via this transport line the plastic to be blown is led to the lances.
- shut-off devices proposed in the transport line so that it is not only protected is, but an immediate resumption of the overall operation of the plant and blowing in the plastics.
- a first and a third shut-off device are in the transport line provided to prevent the return transport of plastic or one Setback of the hot gas masses from the blast furnace into the transport line a second shut-off device is formed.
- Their functionality is described in the Claims, but in particular also explained in more detail in the figure description.
- the invention makes use of the fact to solve blockages in the transport line take advantage that there is a pressure in the transport line which is 4 to Is 6 times the atmospheric pressure. So becomes the inside of the transport line relaxed to the outside atmosphere (approx. 1 bar) via a ventilation opening, there is a very large pressure and suction effect on the blockages that come loose and are transported out of the system from the transport line become.
- FIG. 1 shows a blast furnace 1 constructed in a conventional manner, which has a plurality of nozzles or wind molds 20 distributed uniformly around the circumference in the lower frame region (see FIG. 3), which are connected via a line 5 and a ring line 2 in a wind heater 4 heated wind 3 is supplied.
- the wind 3 can also be enriched with oxygen 3a (O 2 ).
- O 2 oxygen
- Some or all of the nozzles 20 have one or more lances 18 over which Additional fuel can be blown in.
- the usual number of nozzles 20 of the windform arrangement is e.g. 32, and each nozzle has one Diameter of e.g. 140 mm.
- two lances are provided, which typically have a diameter of 12 or Have 8 mm.
- only one lance 18 is to be supplied in each nozzle 20 of fluidized plastic and has e.g. a diameter of 28 mm.
- either all of the lances 18 can be fluidized Plastic are loaded, or the nozzles 20 are mixed, i.e. some nozzles e.g. two oil lances on, while other nozzles 20 turn are equipped with a plastic lance 18.
- a plastics processing plant 6 becomes a silo 7 shredded plastic in the form of an agglomerate with a high specific surface area and a grain size of 1 to 10 mm, preferably 5 mm. It has proven itself Use of plastic that forms an agglomerate with a bulk density of leads greater than 0.35. Plastic packaging cups or the like are used for these purposes. suitable, e.g. Plastic films when shredding to a lower bulk density lead so that special precautions are taken before or during blowing to be able to blow in a sufficient amount.
- FIG. 1 shows an injection vessel 8 into which the plastic agglomerate is introduced via a coarse-grain sieve 14 and fluidized by blowing in a fluidizing gas by means of a blower 11 via lines 12 and 13.
- a fluidizing gas by means of a blower 11 via lines 12 and 13.
- the fluidized plastic is then metered in a separate metering device 9, for example a mechanical screw metering device or a cellular wheel metering device, and is fed uniformly to the corresponding lances 18 of the windform arrangement via a line 10.
- the plastic particles are conveyed here by entrained-current flow, ie with a high gas content, for example at a ratio of 5 to 30 kg of plastic per 1 kg of fluidizing gas.
- Compressed air is used as the fluidizing gas in the present example, since there is no risk of explosion due to the size of the plastic particles of 1 to 10 mm.
- the injection quantity of the plastic can be varied over a wide range (e.g. 30-150 kg plastic / t RE). It was also found that with the same good gasification, a 1.5 times higher amount of plastic compared to oil can be blown in. If the amount of plastic injected is more than 70 kg / t RE, O 2 is expediently added to the wind stream for good gasification, as already mentioned above. The wind should then be enriched with 0.05 to 0.1% O 2 , preferably 0.08% O 2, for each kg plastic / t RE above the value of 70 kg / t RE. For good gasification, the mixed wind temperature from the blast heater 4 is above 1100 ° C. The blowing pressure at the lances 18 is expediently 0.5 ⁇ 10 5 to 1.5 ⁇ 10 5 Pa above the pressure in the blast furnace 1.
- the flow velocity of the gas with the floating Plastic particles are sufficient in comparison to the tube cross section of the lance 18 be high in order to melt or melt and thus bake the plastic to avoid in the lance 18 by heat reflection.
- a suitable relationship the flow velocity to the lance cross section is in the range of 20,000 up to 40,000 1 / sec x m, preferably at 25,000 1 / sec x m. Is this value too low, if there is a risk of caking, if the value is too high, this occurs excessive wear in the lances 18.
- discontinuities and constrictions in the flow and radii of less than 1 m in the event of curvatures are especially in the connection area 18a of the lances.
- FIG. 2 Another solution is shown in FIG. 2 and can consist in perform fluidization and dosing in one go. This is in the bottom In the area of the injection vessel, a ball valve 19 is provided as a metering device. The Fine adjustment is made via the pressure setting and the amount of fluidizing gas.
- this solution requires precise and rapid control of the compressed air supply on the upper line 13 of the injection vessel 8 depending on the fluctuating Internal pressure of the blast furnace 1. For this purpose it is in a suitable place In the blast furnace 1, a pressure sensor is provided, which is connected via a control loop 17 Valve in line 13 quickly readjusted to an exact dosage come.
- the fluidization and metering of the plastic particles can also be done by means of a pressure-tight rotary valve. In this case, the injection vessel 8 omitted.
- Figure 4 shows an enlarged view of the as l. designated section in figure 1 and 2 of line 10, via which the plastics to be blown into blast furnace 1, in particular plastic waste in agglomerated form, transported to the lance 18 become.
- This transport line 10 is connected to the fittings in Injection tower (these include, for example, the metering device 9, but also e.g. the connection for the compressed air or the supply for purge air / nitrogen) formed by a piece of hose 21.
- This is followed by a shut-off block 22 of the transport line 10 and to the shut-off block in the direction of the blowing lance 18 in turn connects to an essential lance fitting part 23 including the blowing lance 18.
- the shut-off block 22 comprises a shut-off valve as the first shut-off device 24, which is closed to remove blockages (will be executed later). About that In addition, a vent line goes from the transport line 10 in the shut-off block (opening) 25, which has a shut-off valve 26.
- a piece of hose 27 which is the transport line 10 of the shut-off block with a heat shut-off valve 28 as a second shut-off device connects.
- This second shut-off device is followed by a third shut-off device 29 for shutting off the lance 18.
- Behind the third Shut-off device (seen from the shut-off block) is a mouthpiece 30, via which by means of a connecting piece 31 compressed air in the lance 18 and so that it can be blown into the blast furnace 1.
- the operation of the above arrangement is as follows: if from any For this reason, no plastic or other reducing agent in the blast furnace is blown in, the shut-off device (29) is closed and the connection 31 opened and then compressed air is in the standstill of the blowing system in the Blown lance. This compressed air is blown in either manually or also automatically whenever the plastic transport to the lance is interrupted is. The introduction of this compressed air prevents the Blow-in lance heats up undesirably and thus prevents heat damage.
- the connection 31 for entering compressed air into the lance is always opened when the plastic supply to the lance is closed by the third shut-off device is.
- the connector 31 itself consists essentially of a valve, which is connected to a compressed air reservoir.
- the plastic agglomerates to be blown into the blast furnace 1 tend to be dependent on their grain shape and size, but also on their specific composition to block the line 10, which - as described above - prevents should be. If such a blockage occurs, one must rapid blockage can be provided.
- This is the shut-off block trained, in which in the case of a tamper after closing the shut-off valves (first and / or third shut-off device) a vent valve or the vent valve 26 is opened.
- This ventilation takes place above the outside atmosphere, which has the consequence that between the transport line 10 in the affected part
- a pressure drop of almost 4 to 6 bar can be recorded via the ventilation line 25 is, while the total pressure drop across the line from the blow fittings to the blowing lance is only about 0.5 to 0.8 bar.
- Through the blatant Air pressure drop will put considerable pressure on the clogging plastic mass exercised, resulting in the sudden emptying of blockages in the transport line leads, so that this in turn after blocking the valve 26 for the Blowing the
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
Description
- Figur 1
- eine schematische Darstellung eines Hochofens einschließlich der entsprechenden Einrichtungen zur Zuführung von fluidisiertem Kunststoff und einschließlich der entsprechenden Einrichtungen zur Zuführung eines erhitzten Windstromes;
- Figur 2
- eine alternative Ausführungsform; und
- Figur 3
- eine Düsen-Lanzen-Anordnung zum Einblasen von fluidisiertem Kunststoff in die Windformen oder Düsen eines Hochofens;
- Figur 4
- eine vergrößerte Darstellung der Transportleitung für den Transport des Kunststoffs zur Lanze.
Claims (16)
- Verfahren zur Erzeugung von Metall aus Metallerzen, insbesondere von Roheisen aus Eisenerz, bei dem das Metalloxide enthaltende Erz mit einem Kohlenstoff und/oder Wasserstoff (sowie ggf. deren Verbindungen) enthaltenden Reduktionsgas in Reaktionskontakt gebracht wird, welches zuvor aus festen kohlenstoff- und/oder kohlenwasserstoffhaltigen Substanzen gewonnen wurde,
dadurch gekennzeichnet, daß Kunststoff in zerkleinerter, fluidisierter Form als Agglomerat in den Windstrom im Gestell eines metallurgischen Schachtofens, insbesondere eines Hochofens (1) eingeblasen wird, daß der Kunststoff über Lanzen (18), die in Luftdüsen eines Hochofens angeordnet sind, in den Luftstrom eingeblasen wird, und daß der Kunststoff über eine Transportleitung (10) zu den Lanzen (18) befördert wird, daß die Kunststoff-Transportleitung (10) eine erste Absperreinrichtung (24), eine zweite Absperreinrichtung (28) und eine dritte Absperreinrichtung (29) vorgesehen ist und daß ferner in der Transportleitung oder in der Lanze Mittel (31) zur Einkopplung von Druckluft ausgebildet sind, daß die erste Absperreinrichtung (24) geschlossen wird, wenn Verstopfungen des Kunststoffs in der Transportleitung (10) oder der Lanze (18) gegeben sind, daß die zweite Absperreinrichtung (28) dann geschlossen wird, wenn über die Einblaslanze (18) Heißluft in die Transportleitung (10) und/oder Lanze (18) entgegen der üblichen Transportrichtung (RT) eindringt und daß die dritte Absperreinrichtung (29) geschlossen wird, wenn Druckluft über die Einblaslanze (18) zur Kühlung dieser aufgegeben wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß zwischen der ersten und zweiten Absperreinrichtung ein Entlüftungsauslaß (26) in der Transportleitung (10) vorgesehen ist und bei Verstopfung der Transportleitung mit Kunststoff die erste Absperreinrichtung (24) den Weitertransport von Kunststoff sperrt und eine Entlüftungsöffnung (26) in der Leitung (10) geöffnet wird, damit verstopfte Kunststoffpartikel aus der Transportleitung (10) abgeführt werden können. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die zweite Absperreinrichtung (28) ein Wärmeabsperrventil mit der Funktion eines Rückschlagventils ist, welches den Transport von Kunststoff in der vorgeschriebenen Richtung in der Transportleitung zuläßt, jedoch dann schließt, wenn Kunststoffpartikel oder Gas entgegen der vorgeschriebenen Transportrichtung bewegt werden. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die dritte Absperreinrichtung (29) aktiviert wird, wenn kein Kunststoff eingeblasen wird und daß dann gleichzeitig Druckluft zur Kühlung der Lanze (18) eingeblasen wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der einzublasende Kunststoff von einem Kunststoffreservoir über eine Schleuse in die Transportleitung abgegeben wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Druckabfall über die Transportleitung bis zum Hochofen etwa 0,3 bis bis 1 Bar beträgt und daß die Druckdifferenz zwischen dem Inneren der Transportleitung und der äußeren Athmosphäre etwa 4 bis 6 Bar beträgt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Kunststoff die Form eines Agglomerats mit hoher spezifischer Oberfläche bei einer Teilchengröße von etwa 3 bis 25 mm und eine Schüttdichte von größer als 0,25 aufweist. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Einblasdruck in den Lanzen 0,5 x 105 bis 1,5 x 105 Pa über dem Druck im Hochofen liegt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Kunststoffteilchen vor Einschleusung in die Transportleitung in getrennten Vorrichtungen nacheinander fluidisiert und dosiert werden. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Kunststoffteilchen in einer kombinierten Fluidisierungs- und Dosiervorrichtung fluidisiert und dosiert werden, wobei der Einblasdruck über eine schnelle Regelschleife (17) ständig abhängig vom Ofendruck angepaßt wird. - Verfahren nach Anspruch 10,
dadurch gekennzeichnet, daß als kombinierte Fluidisierungs- und Dosiervorrichtung eine druckdichte Zellenradschleuse verwendet wird. - Vorrichtung zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche, bestehend aus einer Lanze (18), mittels der Kunststoff in zerkleinerter, fluidisierter Form als Agglomerat in den Windstrom im Gestell eines metallurgischen Schachtofens, insbesondere eines Hochofens (1), einblasbar ist, daß die Lanze (18) über eine Transportleitung (10) mit Kunststoff oder einem anderen Reduktionsmittel versorgt wird und daß in der Transportleitung (10) eine erste Absperreinrichtung (24), eine zweite Absperreinrichtung (28) und eine dritte Absperreinrichtung (29) vorgesehen ist, daß ferner ein Anschluß (31) zur Einleitung von Luft in die Transportleitung (10) und/oder Lanze (18) vorgesehen ist, daß die erste Absperreinrichtung (24) bei Verstopfung der Transportleitung (10) mit Kunststoff aktiviert wird, daß die zweite Absperreinrichtung (28) aktiviert wird, wenn Kunststoffmaterial oder Gas entgegen der vorgesehenen Transportrichrung transportiert wird und daß die dritte Absperreinrichtung (29) aktiviert wird, wenn kein Kunststoff eingeblasen wird und daß dann ein Gas zur Kühlung der Lanzen (19) über den Anschluß (31) eingeblasen wird.
- Vorrichtung nach Anspruch 12,
dadurch gekennzeichnet, daß zwischen der ersten und zweiten Absperreinrichtung ein Lüftungsauslaß (26) in der Transportleitung (10) vorgesehen ist und bei Verstopfung der Transportleitung mit Kunststoff die erste Absperreinrichtung (24) den Weitertransport von Kunststoff sperrt und die Entlüftungsöffnung (26) geöffnet wird, damit verstopfte Kunststoffpartikel aus der Transportleitung (10) abgeführt werden können. - Vorrichtung nach Anspruch 12 oder 13,
dadurch gekennzeichnet, daß die zweite Absperreinrichtung (28) ein Wärmeabsperrventil mit der Funktion eines Rückschlagventils ist, welches den Transport von Kunststoff in der vorgeschriebenen Richtung (RT) in der Transportleitung (10) zuläßt, jedoch dann schließt, wenn Kunststoff oder Gas entgegen der vorgesehenen Transportrichtung bewegt wird. - Vorrichtung nach Anspruch 12, 13 oder 14,
dadurch gekennzeichnet, daß die dritte Absperreinrichtung (29) aktiviert wird, wenn kein Kunststoff eingeblasen wird und daß dann Druckluft zur Kühlung der Lanze eingeblasen wird. - Hochofen zur Erzeugung von Metall aus Metallerzen, insbesondere von Roheisen aus Eisenerz, bei dem das Metalloxid enthaltende Erz mit einem Kohlenstoff und/oder Wasserstoff (sowie gegebenenfalls deren Verbindung) enthaltende Reduktionsgas in Reduktionskontakt gebracht wird, welches zuvor aus festem Kohlenstoff- und/oder kohlenwasserstoffhaltigen Substanzen gewonnen wurde, mit einer Vorrichtung zum Einblasen von Kunststoff in zerkleinerter, fluidisierter Form als Agglomerat in den Windstrom im Gestell des Hochofens, wobei der Kunststoff über Lanzen (18), die in Luftdüsen des Hochofens angeordnet sind, in den Luftstrom eingeblasen wird, und daß der Kunststoff über eine Transportleitung (10) zu den Lanzen (18) befördert wird, daß die Kunststofftransportleitung (10) eine erste Absperreinrichtung (24), eine zweite Absperreinrichtung (28) und eine dritte Absperreinrichtung (29) vorgesehen ist und daß ferner in der Transportleitung (10) oder in der Lanze (18) Mittel (31) zur Einkopplung von Druckluft ausgebildet sind, daß die erste Absperreinrichtung (24) schließt, wenn Verstopfungen des Kunststoffs in der Transportleitung (10) oder der Lanze (18) gegeben sind, daß die zweite Absperreinrichtung (28) schließt, wenn über die Einblaslanze Heißluft/Kunststoff in der Transportleitung entgegen der üblichen Transportrichtung eindringt und daß die dritte Absperreinrichtung (29) schließt, wenn Druckluft über die Einblaslanze zur Kühlung dieser aufgegeben wird.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI9930005T SI1013778T1 (de) | 1998-12-22 | 1999-02-09 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19859354A DE19859354A1 (de) | 1998-12-22 | 1998-12-22 | Verfahren und Vorrichtung zur Erzeugung von Metall aus Metallerzen |
DE19859354 | 1998-12-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1013778A1 true EP1013778A1 (de) | 2000-06-28 |
EP1013778B1 EP1013778B1 (de) | 2001-05-09 |
Family
ID=7892182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99102445A Expired - Lifetime EP1013778B1 (de) | 1998-12-22 | 1999-02-09 | Verfahren und Vorrichtung zur Erzeugung von Metall aus Metallerzen |
Country Status (18)
Country | Link |
---|---|
US (1) | US6231638B1 (de) |
EP (1) | EP1013778B1 (de) |
JP (1) | JP3281614B2 (de) |
KR (1) | KR100318121B1 (de) |
CN (1) | CN1139663C (de) |
AT (1) | ATE201050T1 (de) |
BR (1) | BR9901289A (de) |
CA (1) | CA2261501C (de) |
DE (2) | DE19859354A1 (de) |
DK (1) | DK1013778T3 (de) |
ES (1) | ES2157674T3 (de) |
GR (1) | GR3036284T3 (de) |
HK (1) | HK1030796A1 (de) |
PL (1) | PL337312A1 (de) |
PT (1) | PT1013778E (de) |
SI (1) | SI1013778T1 (de) |
TW (1) | TW523549B (de) |
ZA (1) | ZA991337B (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT409635B (de) * | 2001-01-17 | 2002-09-25 | Haemosan Erzeugung Pharmazeuti | Entsorgung von mit hitzeresistenten erregern infiziertem material |
WO2008014579A1 (en) * | 2006-08-03 | 2008-02-07 | Companhia Siderúrgica De Tubará0 . | Injection process of granulated rubber into blast furnaces |
DE102008026835A1 (de) * | 2008-06-05 | 2009-12-17 | Kurt Himmelfreundpointner | Verfahren und Vorrichtung zum Zufördern von förderfähigen Materialien zu Reaktionsöfen |
AT512017A1 (de) * | 2011-09-30 | 2013-04-15 | Siemens Vai Metals Tech Gmbh | Verfahren und vorrichtung zur roheisenerzeugung |
ITUB20153608A1 (it) * | 2015-09-14 | 2017-03-14 | Danieli Off Mecc | Impianto e metodo di recupero e trattamento di residui di frantumazione di rottami ferrosi |
Families Citing this family (7)
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KR100391901B1 (ko) * | 1998-12-12 | 2003-09-19 | 주식회사 포스코 | 고로내폐플라스틱취입장치 |
US6461400B1 (en) * | 2000-04-12 | 2002-10-08 | Art J. Parker | Process for extracting quantities of precious metals |
KR100485522B1 (ko) * | 2002-12-04 | 2005-04-28 | 주식회사 포스코 | 입형식 소성로 |
DE102011013251A1 (de) | 2011-03-07 | 2012-09-13 | E.S.C.H. Engineering Service Center Und Handel Gmbh | Verfahren zur Herstellung von Roheisen im Hochofen |
DE102013006541A1 (de) | 2012-10-30 | 2014-04-30 | E.S.C.H. Engineering Service Center Und Handel Gmbh | Verfahren zur Herstellung von Roheisen im Hochofen |
DE102014216336A1 (de) | 2014-08-18 | 2016-02-18 | Küttner Holding GmbH & Co. KG | Verfahren zum Einblasen von Ersatzreduktionsmitteln in einen Hochofen |
DE102023105805A1 (de) | 2023-03-09 | 2024-09-12 | Hochschule Hamm-Lippstadt, Körperschaft des öffentlichen Rechts | Verfahren zur Herstellung von Stahl mit reduzierter Kohlendioxidfreisetzung |
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FR597770A (fr) * | 1924-05-10 | 1925-11-28 | Cie Du Carbone Pulverise Pour | Procédé et dispositif pour l'injection de combustible pulvérisé par les tuyères d'insufflation des hauts-fournaux et autres appareils métallurgiques |
DE2714355A1 (de) * | 1977-03-31 | 1978-10-12 | Klein Alb Kg | Verfahren und vorrichtung zum einschleusen von rieselfaehigem beschickungsgut |
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- 1999-02-09 DK DK99102445T patent/DK1013778T3/da active
- 1999-02-09 ES ES99102445T patent/ES2157674T3/es not_active Expired - Lifetime
- 1999-02-09 DE DE59900087T patent/DE59900087D1/de not_active Expired - Lifetime
- 1999-02-09 EP EP99102445A patent/EP1013778B1/de not_active Expired - Lifetime
- 1999-02-09 PT PT79200791T patent/PT1013778E/pt unknown
- 1999-02-09 AT AT99102445T patent/ATE201050T1/de active
- 1999-02-09 SI SI9930005T patent/SI1013778T1/xx unknown
- 1999-02-12 CA CA002261501A patent/CA2261501C/en not_active Expired - Fee Related
- 1999-02-19 ZA ZA9901337A patent/ZA991337B/xx unknown
- 1999-03-04 KR KR1019990007176A patent/KR100318121B1/ko not_active IP Right Cessation
- 1999-03-12 CN CNB991029801A patent/CN1139663C/zh not_active Expired - Fee Related
- 1999-04-01 JP JP09494099A patent/JP3281614B2/ja not_active Expired - Fee Related
- 1999-04-12 TW TW088102313A patent/TW523549B/zh not_active IP Right Cessation
- 1999-04-27 BR BR9901289-8A patent/BR9901289A/pt not_active Application Discontinuation
- 1999-12-20 PL PL99337312A patent/PL337312A1/xx unknown
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT409635B (de) * | 2001-01-17 | 2002-09-25 | Haemosan Erzeugung Pharmazeuti | Entsorgung von mit hitzeresistenten erregern infiziertem material |
WO2008014579A1 (en) * | 2006-08-03 | 2008-02-07 | Companhia Siderúrgica De Tubará0 . | Injection process of granulated rubber into blast furnaces |
DE102008026835A1 (de) * | 2008-06-05 | 2009-12-17 | Kurt Himmelfreundpointner | Verfahren und Vorrichtung zum Zufördern von förderfähigen Materialien zu Reaktionsöfen |
AT512017A1 (de) * | 2011-09-30 | 2013-04-15 | Siemens Vai Metals Tech Gmbh | Verfahren und vorrichtung zur roheisenerzeugung |
AT512017B1 (de) * | 2011-09-30 | 2014-02-15 | Siemens Vai Metals Tech Gmbh | Verfahren und vorrichtung zur roheisenerzeugung |
US9428818B2 (en) | 2011-09-30 | 2016-08-30 | Primetals Technologies Austria GmbH | Method and device for producing pig iron |
ITUB20153608A1 (it) * | 2015-09-14 | 2017-03-14 | Danieli Off Mecc | Impianto e metodo di recupero e trattamento di residui di frantumazione di rottami ferrosi |
WO2017046708A1 (en) * | 2015-09-14 | 2017-03-23 | Danieli & C. Officine Meccaniche S.P.A. | Plant and method for recovering and treating residues from crushing ferrous scrap |
US11213830B2 (en) | 2015-09-14 | 2022-01-04 | Danieli & C. Officine Meccaniche S.P.A. | Plant and method for recovering and treating residues from crushing ferrous scrap |
Also Published As
Publication number | Publication date |
---|---|
ZA991337B (en) | 2000-12-19 |
DE59900087D1 (de) | 2001-06-13 |
GR3036284T3 (en) | 2001-10-31 |
KR20000047372A (ko) | 2000-07-25 |
HK1030796A1 (en) | 2001-05-18 |
JP2000192157A (ja) | 2000-07-11 |
ES2157674T3 (es) | 2001-08-16 |
DK1013778T3 (da) | 2001-08-13 |
CA2261501C (en) | 2003-11-18 |
CN1139663C (zh) | 2004-02-25 |
DE19859354A1 (de) | 2000-07-06 |
PL337312A1 (en) | 2000-07-03 |
CN1261106A (zh) | 2000-07-26 |
SI1013778T1 (de) | 2001-08-31 |
JP3281614B2 (ja) | 2002-05-13 |
ATE201050T1 (de) | 2001-05-15 |
US6231638B1 (en) | 2001-05-15 |
CA2261501A1 (en) | 2000-06-22 |
KR100318121B1 (ko) | 2001-12-22 |
PT1013778E (pt) | 2001-08-30 |
TW523549B (en) | 2003-03-11 |
EP1013778B1 (de) | 2001-05-09 |
BR9901289A (pt) | 2000-09-05 |
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