WO2000055379A1 - Dispositif pour produire une eponge metallique agglomeree a chaud, notamment une eponge de fer agglomeree a chaud - Google Patents

Dispositif pour produire une eponge metallique agglomeree a chaud, notamment une eponge de fer agglomeree a chaud Download PDF

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Publication number
WO2000055379A1
WO2000055379A1 PCT/EP2000/001128 EP0001128W WO0055379A1 WO 2000055379 A1 WO2000055379 A1 WO 2000055379A1 EP 0001128 W EP0001128 W EP 0001128W WO 0055379 A1 WO0055379 A1 WO 0055379A1
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WO
WIPO (PCT)
Prior art keywords
fine particles
hot
briquetting
briquette
briquette press
Prior art date
Application number
PCT/EP2000/001128
Other languages
German (de)
English (en)
Inventor
Thomas Eder
Andreas Forstner
Original Assignee
Voest-Alpine Industrieanlagenbau Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Voest-Alpine Industrieanlagenbau Gmbh filed Critical Voest-Alpine Industrieanlagenbau Gmbh
Priority to KR1020017011816A priority Critical patent/KR20020001777A/ko
Priority to AU25483/00A priority patent/AU2548300A/en
Priority to CA002365982A priority patent/CA2365982A1/fr
Priority to EP00903688A priority patent/EP1169484A1/fr
Priority to JP2000605795A priority patent/JP2002539329A/ja
Publication of WO2000055379A1 publication Critical patent/WO2000055379A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • C21B13/0093—Protecting against oxidation

Definitions

  • the invention relates to a device for producing hot-briquetted metal sponge, in particular hot-briquetted iron sponge, from hot, fine-particle metal sponge, which device comprises at least one briquetting press, a device downstream of the briquetting press for separating fine particles from briquettes formed by means of the briquetting press, and a device for returning the separated fine particles to the briquetting press, and a method using this device.
  • a device for producing hot-briquetted sponge iron from hot, particulate sponge iron is described, for example, in US Pat. No. 5,192,486.
  • oxidic feedstock is reduced to iron by means of a direct reduction device by reducing gas in the solid state.
  • hot briquetting is provided for the reduced material.
  • the sponge iron is compressed by means of a continuous pressing process using roller presses.
  • the resulting briquette strand is subsequently separated into individual briquettes by breaking in drums or in impact breakers.
  • the resulting portion of fine particles, so-called “fines” and “chips” is returned to the briquetting press after a screening process to save feed material. This is done with hot cup elevators at temperatures of 550-700 ° C under an inert atmosphere.
  • the briquettes produced during screening are discharged by means of cooling conveyors (so-called "cooling conveyors").
  • the fine particles and their very high temperature cause high wear on the moving parts of the hot bucket elevator, especially on the chain or the chain connecting elements, and thus cause an extraordinarily high maintenance effort.
  • Another disadvantage is the relatively large space requirement of the entire recirculation system, ie the hot mug mill including the so-called "fines legs", which are downpipes for the fine particulate material.
  • the hot-cup unit is usually arranged between individual briquetting lines, which increases the space required between the briquetting lines. Taking into account the required angles of repose for the fine particles conveyed by the Fines Legs, a larger overall height of the briquetting building is also required.
  • a hot cup elevator can be loaded with a maximum of two briquetting lines, which means that if more than two briquetting lines are provided, there is a correspondingly increased need for hot mug elevators.
  • the recycled material is further cooled in the known device by applying inert gas to the hot bucket elevator, which has a disadvantageous effect on the briquetting behavior or on the wear of the briquetting press, especially when the fine particles are returned directly to the briquetting press.
  • the investment, maintenance and repair costs are therefore very high in the known device.
  • the object of the present invention is to overcome the disadvantages and difficulties of the known device, in particular to minimize the investment, maintenance and repair costs, and to simplify the processing of the fine particles. Furthermore, the height of the briquetting building should be able to be reduced and the overall construction effort should be reduced.
  • the feedback device is designed as a pneumatic conveyor.
  • the return device according to the invention does not have to be arranged between individual briquetting lines, in contrast to a hot-cup mill. Taking into account the space saving or flexible design of the briquetting area achieved according to the invention, the height of the briquetting building can be reduced by 10 to 15%.
  • the number of separation devices for the fine particles in general sieves, can be optimized, ie a sieve can be provided for two or more briquetting lines. This also makes it possible to reduce the number of cooling conveyor belts used to discharge the briquettes and to feed a cooling conveyor belt from four briquetting lines, for example.
  • the pneumatic conveying device preferably opens into a storage bunker upstream of the briquetting press. According to a further preferred embodiment, the pneumatic conveying device opens into a feed line leading the fine-particulate metal sponge to the briquetting press and / or to the storage bunker.
  • the distribution of the recycled fine particles in the entire material flow i.e. in the fine particulate metal sponge, improved.
  • the returned fine particles are brought to optimum briquetting temperature by contact with hot, fine-particle metal sponge.
  • the advantage of this is reduced wear on the briquetting tools.
  • the grain size for the recycled material can be increased so that the amount of non-recyclable larger fine particles, so-called chips, can be reduced or eliminated. This results in an increase in the effective output of the briquetting, i.e. the discharge of briquettes.
  • the feed line to the storage bunker is preferably designed as a riser, the riser being connected downstream of at least one reduction reactor for the direct reduction of fine-particulate metal oxide-containing material.
  • a riser is understood here to mean an essentially vertical, bricked-up pipe section through which the fine-particle metal sponge is pneumatically conveyed upwards by means of the process gas of the reduction reactor.
  • the returned fine particles, together with the hot, fine-particle metal sponge reach the storage bunker via the riser and are fed from there via feed legs to one or more briquetting presses.
  • the pipe section of the pneumatic conveying device required for this can be kept very short.
  • a batch container for receiving the separated and recycled fine particles is advantageously connected upstream of the pneumatic conveying device.
  • locks for shutting off the batch container are provided on the one hand with respect to the separating device and on the other hand with respect to the briquetting press or the storage bunker or the feed line to the briquetting press or to the storage bunker.
  • the batch container is sealed off from the other components and can, for example, be fed or emptied discontinuously with the fine particles.
  • a control for the locks is advantageously provided, which is locked with a shut-off device provided at the outlet of the fine particulate metal sponge from the reduction reactor.
  • a conveying gas used in the pneumatic conveying device is process gas of a direct reduction device. This prevents re-oxidation of the fine particles and moreover has approximately the temperature of the fine particles.
  • the process gas advantageously also has the pressure prevailing in the reduction reactor.
  • a device for cooling and subsequently discharging a partial flow of the fine particles separated by means of the separating device is provided.
  • the cooling device is preferably designed as a scraper conveyor.
  • the flow rate of the fine particles fed to the cooling device can be controlled by slide valves.
  • a so-called "fines diverter" can also be provided.
  • a completely simplified construction as an alternative cooling device is a trough which is filled with water for quenching the fine particles and from which the cooled fine particles can be removed, for example by means of a wheel loader.
  • a buffer tank from which lines to the return device and / or to the cooling device extend, is preferably connected downstream of the separating device. This results in greater flexibility when dividing the fine particles into a partial flow for recycling or into a further partial flow for cooling and discharge.
  • the material to be returned can be delivered batchwise or batchwise to the return device as well as to the cooling device.
  • the return device and / or the buffer container is (are) expediently thermally insulated in order to minimize cooling of the fine particles to be returned.
  • the briquetting press is preferably followed by a device for dividing a briquette strand formed in the briquetting press into individual briquettes, preferably a drum and / or a impact crusher.
  • the briquette strand is separated into individual briquettes by means of the dividing device, the fine particles to be returned being produced in addition to the briquettes.
  • a plurality of briquetting lines each comprising a briquetting press and optionally a dividing device and a separating device, are preferably provided, the briquetting lines ending in a single return device.
  • Four briquetting lines are particularly preferably provided, specifically in a rectangular arrangement as viewed in plan.
  • a single buffer container for example, is arranged under the four briquetting lines or the associated separating device (s), each individual separating device being connected directly to the buffer container with only one fines leg.
  • a method for producing hot-briquetted metal sponge, in particular hot-briquetted iron sponge, from hot, fine-particle-shaped metal sponge, in which the metal sponge is hot-briquetted by means of at least one briquetting press, fine particles are then separated off, in particular sieved, from the briquettes thus formed, and the separated fine particles are returned to the briquetting press , is characterized in that the fine particles are returned by means of pneumatic conveying.
  • the fine particles are preferably fed back into a storage bunker upstream of the briquetting press and / or into a feed line leading the fine-particle metal sponge to the briquetting press and / or to the storage bunker.
  • the fine particles are advantageously recycled continuously or discontinuously by means of a process gas from a direct reduction process.
  • a modified embodiment of the method according to the invention is characterized in that the return of the fine particles is carried out discontinuously by means of a single conveying container.
  • a partial stream of the separated fine particles is cooled and discharged.
  • a briquette strand is formed by means of the briquetting press and the briquette strand is divided into individual briquettes before the fine particles are separated.
  • the briquetting of the finely particulate metal sponge and / or the division of the briquette strand into individual briquettes and / or the separation of the fine particles is advantageously carried out in a plurality of briquetting lines, preferably in four briquetting lines, the separated fine particles being returned in a single return line.
  • FIGS. 1 and 2 each in schematic representation of a device known from the prior art, which is a modified embodiment of the device shown in US Pat. 192,486 device described, and Figures 3 to 5 each show preferred embodiments of the invention.
  • the hot, particulate iron sponge passes through feed legs 3 into briquetting presses 4, two of which can be seen in FIG. 1.
  • the briquetting presses 4 are arranged in parallel and are simultaneously fed from the storage bunker 1 with fine-particle sponge iron.
  • four briquetting presses 4 can also be provided, as shown in FIG. 2.
  • the briquetting presses 4 are designed as roller presses, by means of which briquette strands are formed, which are divided into individual briquettes in downstream drums 5.
  • each briquetting press 4 is assigned a drum 5 for dividing the briquette strand.
  • the fine particles are separated from the briquettes by means of sieves 6.
  • a sieve 6 is provided for each briquetting press 4 and drum 5.
  • the briquettes reach cooling conveyor belts 8 via lines 7, with a separate cooling conveyor belt 8 being provided for each briquetting line, comprising a briquetting press 4, a drum 5 and a sieve 6, according to FIG. 1.
  • a separate cooling conveyor belt 8 is provided for each briquetting line, comprising a briquetting press 4, a drum 5 and a sieve 6, according to FIG. 1.
  • lines 7a from two further briquetting lines, not shown in FIG. 1 also open onto each cooling conveyor belt 8.
  • a cooling conveyor belt 8 is provided for every two briquetting lines, as can be seen in particular from FIG. 2.
  • Cooling gas is flushed around the briquettes on the cooling conveyor belts 8 by the cooling gas being pressed or sucked through a support formed by the briquettes on the cooling conveyor belt 8.
  • the briquettes cooled in this way are finally discharged by means of the cooling conveyor belts 8.
  • each sieve 6 is connected to a hot mug 10 via a fines leg 9.
  • the screen 6 is also connected to a cooling device provided as an alternative to the return device, which is designed as a so-called scraper conveyor 12 in the known device.
  • a Fines Diverter (not shown in more detail) is provided for dividing the fine particles into the Fines Legs 9 or Fines Legs 11, and thus to the hot cup 10 or the scraper conveyor 12. The distribution of the fine particles for recycling or alternatively for cooling takes place depending on the need and free capacity.
  • a hot cup 10 for returning the fine particles and, as mentioned above, a cooling conveyor belt 8 for cooling and discharging the briquettes are provided. Furthermore, a scraper conveyor 12 is provided, which is fed by both briquetting lines.
  • the space requirement of the known device is large because of the large number of individual units.
  • the fine particles are fed to the briquetting presses 4 or optionally - as is known from US Pat. No. 5,192,486 - to the storage bunker 1 by means of the hot cup 10, each hot cup 10 being connected to each individual briquetting press 4 via a trouser line 13 and a fines leg 14 is.
  • the hot cup 10 is provided with an inert gas system not shown in FIG. 1.
  • inert gas By applying inert gas to the hot mug mill IC, the fine particles are cooled, which subsequently leads to increased wear of the briquetting presses 4.
  • the hot bucket elevators 10 themselves are exposed to high thermal and mechanical loads, due to the small grain size of the fine particles and their high temperature. This leads to a high degree of wear on the moving parts of the hot cup elevators 10, especially on the chain or the chain connecting elements, and causes a very high level of maintenance and repair work.
  • FIG. 2 The disadvantageous high space requirement of the hot bucket elevators 10 in the known device is particularly evident from FIG. 2, according to which four parallel briquetting lines are provided, each of which is fed from a storage bunker 1 via feed legs 3 with fine-particle sponge iron. 2 of the four briquetting lines, the briquetting presses 4 and the sieves 6 can be seen in each case.
  • a hot-beaker system 10 is provided between each two briquetting lines for returning the fine particles, the returned fine particles in turn being fed to the briquetting presses 4 via fines legs 14.
  • a cooling conveyor belt 8 is provided for cooling and discharging the briquettes for every two briquetting lines.
  • a scraper conveyor 12 is provided as the cooling device.
  • 3 to 5 show a schematic representation of preferred embodiments of the device according to the invention, components analogous to the known device being provided with the same reference numerals as in FIGS. 1 and 2.
  • the 3 shows a reduction reactor 15, from which the fine-particulate metal sponge is conveyed into the storage bunker 1 by means of the reduction gas used for the reduction via a riser 16.
  • the riser 16 is in this case a bricked-up pipe section through which the fine-particulate sponge iron is pneumatically conveyed upwards by means of the reducing gas.
  • the use of reducing gas as the conveying gas in the riser 16 is favorable, since on the one hand it has the required pressure level and on the other hand it has a chemical composition by means of which an immediate re-oxidation of the hot, fine-particulate iron sponge discharged from the reduction reactor 15 is avoided.
  • the reducing gas is expanded in the storage bunker 1 and leaves the storage bunker 1 via the discharge line 2.
  • the fine particulate iron sponge is fed to the briquetting presses 4 via fines legs 3.
  • 3 shows two briquetting lines each comprising a briquetting press 4.
  • These briquetting lines each further comprise a drum 5, by means of which the briquette strands formed in the briquetting presses 4 are divided into individual briquettes.
  • impact breakers can also be provided, for example.
  • a separate sieve 6 could equally be provided for each briquetting line or the sieve 6 could also be fed from more than two briquetting lines.
  • the briquettes obtained during sieving are cooled and discharged by means of the cooling conveyor belt 8 as described above.
  • the fine particles enter via Fines Leg 9 a buffer container 17 arranged under the sieve 6.
  • the buffer container 17 is also fed by a further sieve, not shown in any more detail and belonging to two further briquetting lines, but it can, for example can be fed from a single sieve.
  • the function of the buffer container 17 is to enable a discontinuous or batchwise delivery of the fine particles to the return device and / or to the cooling device 12.
  • the distribution of the fine particles or the setting of the quantity flows of fine particles fed to the return device and the cooling device 12 is carried out by means of a slide 18.
  • the buffer container 17 and the slide 18 result in flexible operation of the return or cooling system.
  • a fines diverter can also be provided, as is known from the prior art.
  • the cooling device 12 can be designed as a scraper conveyor or - according to a completely simplified construction - as a trough, the trough being filled with water for quenching the fine particles and the cooled fine particles being removed from the trough, for example by means of a wheel loader.
  • the buffer container 17 is provided with a suitable thermal insulation (not shown in more detail).
  • the fine particles according to FIG. 3 pass from the buffer container 17 into a batch container 19 which is also provided with thermal insulation and from there to a pneumatic conveying device.
  • the batch container 19 can be filled or emptied discontinuously with fine particles and is connected to the riser 16 via a delivery line 20.
  • the fine particles are acted upon by a process gas supplied via a feed line 21 and conveyed pneumatically into the riser 16.
  • a process gas supplied via a feed line 21 and conveyed pneumatically into the riser 16.
  • another gas which is inert to the fine particles and to the hot, fine-particle sponge iron from the reduction reactor 15 can be used for pneumatic conveying.
  • the fine particles are conveyed out of the batch container 19 discontinuously in the exemplary embodiment shown, ie the fine particles are removed from the Batch container 19 conveyed only for limited periods.
  • the batch container 19 is sealed off from the buffer container 17 and the riser 16 by means of the slide 18 and by means of a lock 22.
  • the gas supply line 21 is also provided with a shut-off element 22a.
  • the lock 22 or the slide 18 belonging to the batch container 19 are provided with a control which is locked with a shut-off device provided at the outlet of the fine-particulate metal sponge from the reduction reactor 15, comprising a ball valve 23 and a slide 24.
  • the purpose of the lock is to avoid unfavorable pressure and flow conditions when introducing the fine particles into the riser 16.
  • the delivery line 20 opens directly into the riser 16 and is kept very short, which advantageously results in very low pressure losses.
  • the device according to the invention is characterized overall by a space-saving and flexible design. As a result, substantial savings are achieved compared to the known return device with hot cup mills 10, just as far as the number of units required is concerned. In addition, the return device itself is significantly simpler in construction and therefore causes far lower investment, maintenance and repair costs.
  • the embodiment according to FIG. 4 is similar to the embodiment according to FIG. 3. However, the delivery line 20 opens directly into the storage bunker 1, so that the return of the fine particles is largely independent of the conveyance of the hot, fine-particle sponge iron through the riser 16.
  • the fine particles are fed to the briquette presses 4 together with the hot fine-particle iron sponge from the reduction reactor 15. This optimizes the distribution of the recycled fine particles in the entire material flow, ie in the fine-particulate iron sponge, so that the returned fine particles are brought to the optimum briquetting temperature by contact with the hot fine-particulate iron sponge.
  • the wear on the briquette presses 4 as a result of temperature fluctuations is thereby minimized.
  • the grain size for the recycled material can be increased so that the non-recyclable amount of larger fine particles known as chips can be minimized. Thereby there is an increase in the effective discharge performance of the briquetting, ie an increased discharge of briquettes.
  • FIG. 5 shows, in a representation analogous to FIG. 2, particularly clearly the space-saving arrangement of four briquetting lines in a rectangular arrangement, which is possible by using the feedback device according to the invention.
  • the feedback device itself is not shown in detail in FIG. 5.
  • the riser 16 is shown schematically, which opens into the storage bunker 1.
  • Four feed legs 3 extend from the storage bunker 1 to the individual briquetting lines, the briquetting presses 4 being shown schematically in the figure.
  • a sieve 6 is provided for two briquetting lines each opening together. From the two sieves 6, in each case one line 7 extends to the single cooling conveyor belt 8.
  • the return device is not, as in the prior art, arranged between the briquetting lines, as a result of which a much more compact design of the briquetting system is possible. This leads to a lower overall height of the briquetting building and - in addition to the saving of the expensive hot cup mills per se - to a further saving of system parts, e.g. the saving of a second cooling conveyor belt 8, whereby the investment, maintenance and repair costs can be significantly reduced.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

L'invention concerne un dispositif pour produire une éponge métallique agglomérée à chaud, notamment une éponge de fer agglomérée à chaud, à partir d'une éponge métallique chaude, se présentant sous la forme de fines particules. Ce dispositif présente au moins une presse à agglomérés (4), une unité (6) montée en aval de cette dernière pour séparer les particules fines d'agglomérés formés au moyen de ladite presse (4), et une unité pour réacheminer les fines particules séparées à la presse à agglomérés (4). Selon l'invention, l'unité de réacheminement se présente sous la forme d'un convoyeur pneumatique (20, 21), ce qui permet d'économiser des coûts d'investissement et de maintenance, et d'obtenir un dispositif compact.
PCT/EP2000/001128 1999-03-17 2000-02-11 Dispositif pour produire une eponge metallique agglomeree a chaud, notamment une eponge de fer agglomeree a chaud WO2000055379A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020017011816A KR20020001777A (ko) 1999-03-17 2000-02-11 고온 브리케트화된 해면 금속, 특히 고온 브리케트화된해면철의 생산 장치
AU25483/00A AU2548300A (en) 1999-03-17 2000-02-11 Device for producing hot-briquetted metallic sponge, especially hot-briquetted sponge iron
CA002365982A CA2365982A1 (fr) 1999-03-17 2000-02-11 Dispositif pour produire une eponge metallique agglomeree a chaud, notamment une eponge de fer agglomeree a chaud
EP00903688A EP1169484A1 (fr) 1999-03-17 2000-02-11 Dispositif pour produire une eponge metallique agglomeree a chaud, notamment une eponge de fer agglomeree a chaud
JP2000605795A JP2002539329A (ja) 1999-03-17 2000-02-11 高温練炭化金属海綿、特に高温練炭化鉄海綿製造のためのプラント

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA477/99 1999-03-17
AT0047799A AT407258B (de) 1999-03-17 1999-03-17 Vorrichtung zum herstellen von heissbrikettiertem metallschwamm, insbesondere heissbrikettiertem eisenschwamm

Publications (1)

Publication Number Publication Date
WO2000055379A1 true WO2000055379A1 (fr) 2000-09-21

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PCT/EP2000/001128 WO2000055379A1 (fr) 1999-03-17 2000-02-11 Dispositif pour produire une eponge metallique agglomeree a chaud, notamment une eponge de fer agglomeree a chaud

Country Status (7)

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EP (1) EP1169484A1 (fr)
JP (1) JP2002539329A (fr)
KR (2) KR20020001777A (fr)
AT (2) AT407258B (fr)
AU (1) AU2548300A (fr)
CA (1) CA2365982A1 (fr)
WO (1) WO2000055379A1 (fr)

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WO2016026589A1 (fr) * 2014-08-20 2016-02-25 Maschinenfabrik Köppern Gmbh & Co. Kg Installation de briquetage à chaud

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WO2020099304A1 (fr) * 2018-11-13 2020-05-22 Dsm Ip Assets B.V. Composition expansée

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KR910008000B1 (ko) * 1989-08-01 1991-10-05 효성바스프 주식회사 스치로폴예비발포입자의 비중제어장치
US5445363A (en) * 1990-01-09 1995-08-29 Hylsa S.A. De C.V. Apparatus for the pneumatic transport of large iron-bearing particles
ATE165624T1 (de) * 1991-05-30 1998-05-15 Hylsa Sa Verfahren zum transportieren von eisenschwamm

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Publication number Priority date Publication date Assignee Title
US4412858A (en) * 1982-07-12 1983-11-01 Hylsa, S.A. Method of converting iron ore into molten iron
DE19545985A1 (de) * 1995-12-09 1997-06-12 Metallgesellschaft Ag Verfahren zum Heißbrikettieren von körnigem Eisenschwamm

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016026589A1 (fr) * 2014-08-20 2016-02-25 Maschinenfabrik Köppern Gmbh & Co. Kg Installation de briquetage à chaud
DE102014111906A1 (de) 2014-08-20 2016-02-25 Maschinenfabrik Köppern Gmbh & Co. Kg Anlage zum Heißbrikettieren
CN106605001A (zh) * 2014-08-20 2017-04-26 魁伯恩机械制造有限责任两合公司 用于热压块的设备
CN106605001B (zh) * 2014-08-20 2018-09-04 魁伯恩机械制造有限责任两合公司 用于热压块的设备
US10214787B2 (en) 2014-08-20 2019-02-26 Maschinenfabrik Koeppern Gmbh & Co. Kg Hot-briquetting installation
RU2685837C1 (ru) * 2014-08-20 2019-04-23 Машиненфабрик Кёпперн Гмбх Унд Ко. Кг Установка для горячего брикетирования

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KR20020001777A (ko) 2002-01-09
EP1169484A1 (fr) 2002-01-09
CA2365982A1 (fr) 2000-09-21
ATE251018T1 (de) 2003-10-15
ATA47799A (de) 2000-06-15
AU2548300A (en) 2000-10-04
AT407258B (de) 2001-02-26
JP2002539329A (ja) 2002-11-19
KR100576954B1 (ko) 2006-05-10
KR20010049776A (ko) 2001-06-15

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