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WO2010131753A1 - Procédé de fabrication de fer réduit haute densité et dispositif de fabrication de fer réduit haute densité - Google Patents

Procédé de fabrication de fer réduit haute densité et dispositif de fabrication de fer réduit haute densité Download PDF

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Publication number
WO2010131753A1
WO2010131753A1 PCT/JP2010/058232 JP2010058232W WO2010131753A1 WO 2010131753 A1 WO2010131753 A1 WO 2010131753A1 JP 2010058232 W JP2010058232 W JP 2010058232W WO 2010131753 A1 WO2010131753 A1 WO 2010131753A1
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WO
WIPO (PCT)
Prior art keywords
reduced iron
density
massive
iron
hopper
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.)
Ceased
Application number
PCT/JP2010/058232
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English (en)
Japanese (ja)
Inventor
博文 堤
孝夫 原田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to KR1020117027057A priority Critical patent/KR101302793B1/ko
Priority to CN2010800162010A priority patent/CN102388153B/zh
Publication of WO2010131753A1 publication Critical patent/WO2010131753A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C21B13/0053—On a massing grate
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes

Definitions

  • the present invention relates to a method for producing high-density reduced iron and an apparatus for producing high-density reduced iron used as melting raw materials for converters such as blast furnaces, melting furnaces, electric furnaces, and steelmaking furnaces.
  • Fig. 9 shows a part of a conventional method for producing reduced iron briquettes.
  • Reduced iron R manufactured in a direct reduction furnace such as a rotary hearth furnace is supplied to a briquette machine facility 51 through a hopper 50 as shown in FIG.
  • the briquette machine equipment 51 is provided with roll briquetters and breakers.
  • the reduced iron R is pressure-formed into a plate shape having cutting grooves at predetermined intervals by the briquetter, and then cut individually by the breaker. Thereby, reduced iron briquette B is formed.
  • the briquetter presses several DRIs (directly reduced iron) into a HBI (hot briquette reduced iron) size mold for pressure molding.
  • the HBI is compressed to an apparent density of 5.0 g / cm 3 or more so that it does not generate heat or generate cracks, for example, by reacting with air during its transportation.
  • a special pressure device for briquetters is used.
  • the reduced iron briquette B ′ cooled with water is pulled up from the quench tank 52 by the carry-out conveyor 53 to become a product (see, for example, Patent Document 1).
  • the reduced iron briquette B ′ (see FIG. 10) produced by the above method is exported to those countries mainly as iron sources for steelmaking where raw materials and fuels can be obtained at low cost.
  • the reduced iron briquette B ′ When the reduced iron briquette B ′ is not used for external sales, for example, when it is used by being transported to a steelmaking factory or blast furnace adjacent to the same briquette machine equipment, it is not necessary to consider the cracks during transportation. There is no need to provide the briquette machine equipment 51.
  • the reduced iron R itself has a particle size distribution, and the porosity in the reduced iron R is high, so that the sizes are different. There is a problem that the reduced iron R cannot be cooled at the same cooling rate. Moreover, since porosity is high, there also exists a problem that the reoxidation during storage cannot be suppressed.
  • the present invention has been made in consideration of the problems in the conventional method for producing reduced iron briquettes as described above.
  • the present invention provides a method for producing high-density reduced iron and an apparatus for producing high-density reduced iron, which can suppress reoxidation of reduced iron without using briquette machine equipment and can be cooled at the same cooling rate.
  • the manufacturing method of high-density reduced iron and the manufacturing apparatus of high-density reduced iron which can achieve the target metallization rate and can suppress a strength fall are provided.
  • the present invention does not agglomerate lump reduced iron like conventional HBI, and compresses at a lower pressure than HBI while keeping each lump reduced iron in a state of being scattered, thereby suppressing reoxidation. It is characterized by an apparent density.
  • the method for producing reduced iron briquettes according to the present invention comprises: A method of obtaining one high-density reduced iron from one lump reduced iron obtained by a direct reduction iron manufacturing method, introducing the lump reduced iron into a pressure device, Pressing the massive reduced iron at a high temperature by the pressing part of the pressurizing device that can sandwich the massive reduced iron, The gist is to cool the above-mentioned massive reduced iron.
  • raw pellets iron oxide pellets
  • raw briquettes iron oxide briquettes
  • high density reduced iron means “bulk reduced iron” obtained by being directly supplied to a reduction furnace and reduced to pressurize and compress further to increase the density. High-density reduced iron has a smaller degree of compression than compression molding by hot briquette machine equipment.
  • the massive reduced iron obtained by the direct reduction iron manufacturing method is pressurized, and cooling is performed after high-density reduced iron having approximately the same size is obtained.
  • the method for producing reduced iron briquette according to the present invention has a pair of rollers arranged in parallel as the pressing portion, and can press the massive reduced iron by a concave portion provided on the circumferential surface of each roller.
  • the lump reduced iron can be pressurized by a plurality of the concave portions formed in a wave shape continuously on the circumferential surface of each roller.
  • the facing distance between the recesses is defined in order to increase the density of one block-like reduced iron, and can be determined based on one of the two dimensional designs described below.
  • the representative dimension is d ′ among the three-dimensional dimensions of the iron oxide pellets (raw pellets) or iron oxide briquettes (raw briquettes) containing the carbonaceous material before reduction, and D is the facing distance between the deepest parts of the recesses. Then, the facing distance between the recesses is adjusted so as to satisfy the relationship of D ⁇ (0.3 to 0.9) d ′.
  • the representative dimension d is a value defined by the 1/3 power of the volume of the massive reduced iron
  • the representative dimension d ′ is a value defined by the 1/3 power of the volume of the iron oxide pellets or iron oxide briquettes. It is.
  • the adjustment can be performed by controlling the value of torque generated in the roll so as to achieve the desired density.
  • the difference between the above (1) and (2) is that the above (1) is based on the size of the massive reduced iron (manufactured by the direct reduction iron manufacturing method) to be pressurized, while the above (2) Then, it is the point which determines based on the dimension of the raw pellet and raw briquette which are the raw material materials before manufacturing the lump reduced iron used as the pressurization object.
  • This has the advantage that the optimum inter-roll dimension D can be determined based on values estimated from the production conditions and production equipment specifications of raw pellets and raw briquettes.
  • the massive reduced iron when the massive reduced iron is pressed, the massive reduced iron having an apparent density of 2.25 ⁇ 0.75 g / cm 3 is reduced to an apparent density of 4.0 ⁇ 1.0 g / cm 3. It is preferable to raise to the range of cm 3 .
  • the massive reduced iron into the pressurizing device via a guide device that introduces the massive reduced iron into the pressurizing device.
  • powder generated by the collapse of the massive reduced iron or the like can be introduced into the pressurizing apparatus together with the massive reduced iron. This makes it possible to use the disintegrated powder effectively.
  • the bulk reduced iron can be cooled by water cooling or gas cooling.
  • the water cooling can be performed by injecting cooling water onto the high-density reduced iron being conveyed, or can be performed by immersing the high-density reduced iron in water.
  • An apparatus for producing high-density reduced iron according to the present invention is as follows.
  • An apparatus for producing one high-density reduced iron from one block reduced iron obtained by a direct reduction iron manufacturing method A pressurizing device that pressurizes the massive reduced iron at a high temperature to increase the density;
  • a guide device for introducing the massive reduced iron into the pressure device A pressing unit provided in the pressurizing device, capable of sandwiching and substantially including the massive reduced iron from opposite sides, and pressurizing the massive reduced iron at a high temperature;
  • a cooling device that cools the high-density reduced iron that has been compressed by the pressing portion and increased in density.
  • the guide device may include a hopper for storing the massive reduced iron, and an outlet provided at a lower portion of the hopper and having a passage narrowed so that the one massive reduced iron can pass therethrough. it can.
  • the guide device includes a hopper that stores the massive reduced iron, and a vibration feeder that unfolds the massive reduced iron supplied from the hopper and overlaps a plurality of layers and guides it to the pair of rollers. be able to.
  • the guide device may include a hopper for storing the massive reduced iron and a trough with a guide plate that guides the pair of rollers in a state where the massive reduced iron supplied from the hopper is aligned. it can.
  • a vibration device can be added to the outlet or the trough with a guide plate.
  • the massive reduced iron can be uniformly densified without requiring a large-scale briquette machine facility that is specially configured and requires high power and wear of the pressurizing portion is high. it can. Furthermore, according to the present invention, the target metallization rate can be maintained as a whole product, and strength reduction can be suppressed.
  • FIG. 1 shows a basic configuration of a high density reduced iron manufacturing apparatus 1 according to the present invention.
  • reduced iron pellets (bulk reduced iron) R produced in a direct reduction furnace are supplied to a roller press device 2 as a pressurizing device while maintaining a high temperature (600 to 800 ° C.). ing.
  • the roller press device 2 includes a pair of rollers 2a and 2b arranged opposite to each other and a driving device (not shown).
  • One roller 2a rotates in the direction of arrow A around the rotation shaft 2c arranged in the horizontal direction
  • the other roller 2b rotates in the direction of arrow B around the rotation shaft 2d arranged in the horizontal direction. ing.
  • each roller 2a and 2b (in the thickness direction of the paper) is, for example, 250 mm, and the gap between each facing roller 2a and 2b can be adjusted in the range of 1 to 30 mm. It has become. That is, the rotating shaft 2c of the roller 2a is fixed, and the rotating shaft 2d of the roller 2b is pivotally supported by an arm that can move in the horizontal direction.
  • the arm is a rod that expands and contracts from the hydraulic cylinder and can move in the horizontal direction.
  • the gap between the rollers 2a and 2b is adjusted according to the average particle diameter of the reduced iron pellet R. To do.
  • FIG. 2 shows an enlarged view of a main part of the rollers 2a and 2b.
  • a plurality of recesses 2e are formed on the outer peripheral surface of the roller 2a at predetermined intervals in the roller circumferential direction (C direction). Thereby, the roller 2a whole has a corrugated surface (cross section) which continues. Also, the roller 2b facing the roller 2a is formed with a plurality of recesses 2f at the site facing the recess 2e. Thereby, the roller 2b whole has a waveform surface (cross section) which continues.
  • the reduced iron pellet R is wound into the gap between the rollers 2a and 2b. Be able to.
  • the ratio of the opening area of the recess 2e is 70 to 80%.
  • the plurality of recesses 2e and recesses 2f arranged in a row function as pressing portions E for pressurizing the reduced iron pellets R one by one to increase the density.
  • the pressing portions E can be provided in a plurality of rows in the rotation axis direction of the roller.
  • the reduced iron pellets R can be prevented from slipping and the reduced iron pellets R can be efficiently wound around the pressing portion D.
  • the winding efficiency can also be improved by making the outer periphery of the rollers 2a and 2b into a waveform when viewed from the direction of the rotation axis.
  • each recessed part 2e, 2f in the press part E is comprised so that reduction iron pellet R may be pinched and included.
  • the facing distance between the recesses 2e and 2f is D ⁇ (0.5 to 1) where d is the representative dimension of the three-dimensional dimensions of the reduced iron pellet R and D is the facing distance between the deepest parts of the recesses 2e and 2f. .0) d is adjusted to satisfy the relationship d.
  • the facing distance between the recesses 2e and 2f can be defined by the size of raw pellets (not shown) containing the carbonaceous material before reduction.
  • the facing distance between the recesses 2e and 2f is D ⁇ (0.3), where d ′ is the representative dimension of the three-dimensional dimensions of the raw pellet and D is the facing distance between the deepest portions of the recess. To 0.9) d ′.
  • the apparent density of the reduced iron pellet R before passing through the roller press device 2 is 2.25 ⁇ 0.75 g / cm 3 .
  • the apparent density of the high-density reduced iron F (see FIG. 11) that has been pressurized by passing through the roller press device 2 and whose density has been increased is 4.0 ⁇ 1.0 g / cm 3 .
  • roller pressure and torque of the rollers 2a and 2b are set to values necessary for pressurizing the reduced iron pellet R to form high-density reduced iron.
  • a large roller pressure and torque that are set in the briquette machine equipment when forming the reduced iron briquette B ′ as shown in FIG. 10 are not required.
  • the conventional briquette machine equipment is used, similar agglomeration is possible by lowering the roller pressure.
  • the briquette machine equipment is intended to agglomerate several reduced iron pellets at a high pressure into one, in the region under a low pressure as in the present invention, it acts to exert an equal pressure on each pellet. It is unsuitable.
  • the high-density reduced iron F discharged (dropped) individually from the roller press apparatus 2 is received on the conveyor 3 and conveyed in the horizontal direction (arrow G direction).
  • a spray nozzle (cooling device) 4 for injecting the cooling water Wa is disposed at the conveyance destination of the conveyor 3 so that the high-density reduced iron F conveyed by the conveyor 3 can be cooled by the cooling water Wa. It has become. In this embodiment, cooling is performed at a cooling rate of 300 ° C./min or less.
  • the rapidly cooled high-density reduced iron F is stored, for example, in a yard accumulation area.
  • the voids that cause reoxidation are reduced by increasing the density by pressurizing the massive reduced iron pellets obtained by the direct reduction iron making method. To do. Since this step is followed by cooling, it is possible to cool at a substantially uniform cooling rate. Therefore, the above-described problem of supercooling does not occur, and equipment for controlling cooling becomes unnecessary.
  • the cooling method in which cooling water is jetted onto the high-density reduced iron F to quench it has been described.
  • the high-density reduced iron F can be cooled by being immersed in water.
  • the cooling method is not limited to the water cooling, and may be gas cooling.
  • the gas cooling is, for example, a method in which compressed air is blown to the high-density reduced iron F to rapidly cool, or a mixed gas of air and an inert gas, or only an inert gas is blown to the high-density reduced iron F for cooling. The method of doing is included.
  • FIG. 3 shows a configuration of the guide device 5 for supplying reduced iron pellets R one by one to the recesses 2e and 2f formed in the rollers 2a and 2b of the roller press device 2.
  • the guide device 5 shown in the figure has a hopper 5a, and the outlet 5b of the hopper 5a is narrowed so that the reduced iron pellets R can pass one by one.
  • the reduced iron pellet R charged in the hopper 5a moves to the lower outlet portion 5b by gravity and is directly supplied to the pressing portion E.
  • the exit part dimension of the hopper 5a is set to about 1.1d.
  • d is a representative dimension of the reduced iron pellet R.
  • the guide device 5 can expand and supply the reduced iron pellets R for each row of the pressing portions E of the roller press device 2.
  • FIG. 4 is a front view showing the configuration of the second guide device 10.
  • the guide device 10 shown in the figure includes a hopper 11 for storing reduced iron pellets R, and a vibration feeder 12 disposed below the hopper 11 so as to be inclined downward.
  • the vibration feeder 12 receives a reduced iron pellet R supplied from the hopper 11 and conveys the reduced iron pellet R to the pressing portion E of the roller press device 2 and a vibration device 12b that vibrates the trough 12a. It consists of and.
  • the reduced iron R supplied from the hopper 11 and overlaid in a plurality of layers is further expanded and supplied to the pressing portion E one by one.
  • variety is narrowed down so that the front-end
  • the vibration device 12b may be a vibration device that vibrates electrically using an electromagnetic vibrator or the like, or may be a vibration device that vibrates mechanically using a drive motor.
  • FIG. 5 is a perspective view showing the configuration of the third guide device 20.
  • a guide device 20 shown in FIG. 1 includes a hopper 21 that stores reduced iron pellets R, and a trough (trough with a guide plate) 22 that is disposed below the hopper 21 in an inclined state. Yes.
  • the inclination angle of the trough 22 is set to an angle at which the reduced iron pellet R can roll with its own weight.
  • the outlet of the hopper 21 is composed of a slit arranged in parallel with the rotation axis direction of the rollers 2a and 2b.
  • the lateral width of the trough 22 is substantially the same as the slit width W of the hopper 21, and the trough 22 is partitioned in parallel by a plurality of guide plates 22a. Thereby, a plurality of passages are formed in the trough 22.
  • the reduced iron pellets R supplied from the hopper 21 are divided into a plurality of reduced iron pellets R rows by the guide plate 22a, and supplied to the pressing portion E one by one from the plurality of passages.
  • the recesses 2e and 2f are provided on the circumferential surfaces of the rollers 2a and 2b so that the reduced iron pellets R supplied from a plurality of rows can be pressurized in the rotational axis direction of the rollers 2a and 2b.
  • a plurality of rows are provided.
  • FIG. 6 is a perspective view showing the configuration of the fourth guide device 30.
  • the guide device 30 shown in the figure includes the hopper 21 shown in FIG. 5 and a vibration feeder 31 that is arranged below the hopper 21 in a slanting manner.
  • the vibration feeder 31 is formed in a tapered shape when viewed from the plane, and includes a trough 31a disposed in a state of being inclined downward when viewed from the side surface, and a vibration device 31b that vibrates the trough 31a.
  • the reduced iron pellets R supplied from the hopper 31 are divided into a plurality of rows and supplied one by one to the pressing portion E.
  • the recesses 2e and 2f are provided on the circumferential surfaces of the rollers 2a and 2b so that the reduced iron pellets R supplied from a plurality of rows can be pressurized. It is assumed that a plurality of rows are provided in the direction.
  • the circumferential surface area of the roller 2a is 100%, the ratio of the opening area of the recess 2e is 70 to 80%.
  • FIG. 7 is a perspective view showing the configuration of the fifth guide device 40.
  • the guide device 40 is mainly composed of a cylindrical chute 40a that is tapered downward, and a screw feeder 40b that is provided in the cylindrical chute 40a and rotates around the cylindrical axis of the cylindrical chute 40a.
  • the guide device 40 moves the reduced iron pellet R charged in the cylindrical chute 40a downward by the rotation of the screw feeder 40b, and supplies the reduced iron pellet R to the pressing portion E from the chute outlet 40c with a reduced opening area. It is configured to be able to.
  • a vibration device 41 is added to the outlet portion 5b of the hopper 5a shown in FIG. 3, and the reduced iron pellet R passing through the outlet portion 5b is vibrated. . According to this structure, clogging of the reduced iron pellet R in the exit part 5b can be prevented, and more stable supply can be performed.
  • the main component of the powder generated by the collapse of the reduced iron pellet R is iron. If these resources are recycled, the amount of dumping can be reduced and the resources can be effectively used to save energy.
  • the reduced iron pellet R is described as an example.
  • the reduced iron is not necessarily in the form of a pellet, and may be a raw briquette.

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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)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

L'invention concerne un procédé de fabrication de fer réduit haute densité et un dispositif associé, capables de refroidir de manière uniforme un bloc de fer réduit sans nécessiter une machine à briqueter à grande échelle, de maintenir un taux de métallisation souhaité du produit entier, et de réduire la perte de résistance. L'invention concerne spécifiquement un dispositif pour fabriquer du fer réduit haute densité à partir d'une pièce de bloc de fer réduit (R) obtenue par un procédé de fabrication de fer à réduction directe, le dispositif étant caractérisé en ce qu'il comporte une unité de pressurisation (2) qui pressurise le bloc de fer réduit à haute température afin d'augmenter la densité, une unité de guidage (5) qui guide le bloc de fer réduit dans l'unité de pressurisation, des parties de pression (2a, 2b) formées dans l'unité de pressurisation pouvant prendre en sandwich le bloc de fer réduit à partir des deux côtés se faisant face et envelopper sensiblement le bloc de fer réduit, et qui pressurise le bloc de fer réduit à haute température, et une unité de refroidissement (4) qui refroidit le fer réduit haute densité dont la densité a augmenté du fait qu'il a été comprimé par les parties de pression.
PCT/JP2010/058232 2009-05-15 2010-05-14 Procédé de fabrication de fer réduit haute densité et dispositif de fabrication de fer réduit haute densité Ceased WO2010131753A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020117027057A KR101302793B1 (ko) 2009-05-15 2010-05-14 고밀도 환원철의 제조방법 및 고밀도 환원철의 제조장치
CN2010800162010A CN102388153B (zh) 2009-05-15 2010-05-14 高密度还原铁的制造方法以及高密度还原铁的制造装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-119158 2009-05-15
JP2009119158 2009-05-15

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WO2010131753A1 true WO2010131753A1 (fr) 2010-11-18

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Country Link
JP (1) JP2010285691A (fr)
KR (1) KR101302793B1 (fr)
CN (1) CN102388153B (fr)
WO (1) WO2010131753A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019042574A1 (fr) * 2017-09-04 2019-03-07 Outotec (Finland) Oy Installation et appareil pour le traitement thermique de matières solides

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101424609B1 (ko) * 2012-06-27 2014-07-31 주식회사 포스코 분환원철 괴성화 장치
CN211576724U (zh) * 2020-03-05 2020-09-25 中国标准化研究院 一种非均匀散料混样装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06316718A (ja) * 1993-03-08 1994-11-15 Kobe Steel Ltd 還元鉄ブリケットの製造方法
JP2000204419A (ja) * 1999-01-11 2000-07-25 Kobe Steel Ltd 還元鉄ブリケットの製造方法
JP2009079292A (ja) * 2007-09-05 2009-04-16 Nippon Steel Corp 還元鉄成形体の製造方法、及び銑鉄の製造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1055729C (zh) * 1996-11-11 2000-08-23 住友金属工业株式会社 还原铁和铁水的制造方法及还原铁的制造装置
BR9905656A (pt) * 1999-11-30 2001-07-24 Viviane Vasconcelos Vilela Ltd Aparelhagem e processo para a extração de calor e para a solidificação de partìculas de materiais fundidos
EP1170384B1 (fr) * 1999-12-13 2010-04-07 Nippon Steel Corporation Procédé de mise en oeuvre d'un four de réduction a foyer rotatif
AUPR678301A0 (en) * 2001-08-02 2001-08-23 Commonwealth Scientific And Industrial Research Organisation Iron ore briquetting
KR100823616B1 (ko) * 2001-10-17 2008-04-21 재단법인 포항산업과학연구원 고로 용융 슬래그 미립화 장치
CN1325666C (zh) * 2002-12-21 2007-07-11 Posco公司 制造铁水的设备及其使用方法
CN201020860Y (zh) * 2007-03-10 2008-02-13 李瑞平 高压热态压块机
CN101307372B (zh) * 2007-05-18 2010-08-11 王云龙 一种甲壳球团的制造与还原装置及生产工艺

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06316718A (ja) * 1993-03-08 1994-11-15 Kobe Steel Ltd 還元鉄ブリケットの製造方法
JP2000204419A (ja) * 1999-01-11 2000-07-25 Kobe Steel Ltd 還元鉄ブリケットの製造方法
JP2009079292A (ja) * 2007-09-05 2009-04-16 Nippon Steel Corp 還元鉄成形体の製造方法、及び銑鉄の製造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019042574A1 (fr) * 2017-09-04 2019-03-07 Outotec (Finland) Oy Installation et appareil pour le traitement thermique de matières solides
US10793928B2 (en) 2017-09-04 2020-10-06 Outotec (Finland) Oy Plant and method for the thermal treatment of solids

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Publication number Publication date
JP2010285691A (ja) 2010-12-24
CN102388153A (zh) 2012-03-21
CN102388153B (zh) 2013-09-18
KR20120013381A (ko) 2012-02-14
KR101302793B1 (ko) 2013-09-02

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