公开(公告)号：EP2321437B1

公开(公告)日：2012-06-13

申请号：EP09781899.1

申请日：2009-08-17

Applicant: Siemens VAI Metals Technologies GmbH

Inventor： HECKMANN, Hado ,  BOEHM, Christian ,  SCHENK, Johannes Leopold ,  STIASNY, Hans Herbert

IPC: C22B1/24 ,  C22B1/242 ,  C21B13/00 ,  C22B5/14

CPC classification number: C22B1/24 ,  C21B13/008 ,  C21B13/023 ,  C21B13/143 ,  C22B1/2406 ,  C22B1/2413 ,  C22B1/242 ,  Y02P10/136

Abstract: A description is given of a process for producing agglomerates composed of finely particulate iron carriers and at least one binder as starting material for a metallurgical process. The agglomerates are, in at least one further agglomeration step, coated with a layer consisting of iron carriers and at least one binder and heated in such a way that only the binder in the region of the surface of the agglomerates is cured. In a process for producing liquid pig iron or liquid steel raw products from starting materials and if appropriate additives and agglomerates, the agglomerates are preheated in a reduction zone which has a preheating stage in such a way that the agglomerates cure fully in the preheating stage.

公开(公告)号：EP1605067B1

公开(公告)日：2011-12-28

申请号：EP04714008.2

申请日：2004-02-24

Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

Inventor： ITO, Shuzo ,  TSUGE, Osamu

IPC: C21B13/10 ,  C22B1/16

CPC classification number: C21B13/008 ,  C21B13/0006 ,  C21B13/105 ,  C22B1/22 ,  C22B1/245 ,  C22B5/10 ,  Y02P10/136

Abstract: A process for producing particulate iron metal through the reducing fusion of a feed material mixture comprising an iron oxide-containing substance, e.g., iron ore, and a carbonaceous reducing agent, e.g., a carbon-containing material, in a moving-bed type heating/reducing oven, wherein especially the content of the sulfur which has come into the particulate iron metal from the carbon-containing material such as coal is minimized. Thus, high-quality particulate iron metal reduced in sulfur content is obtained. The amounts of CaO-, MgO-, and SiO2-containing substances contained in the feed material mixture are regulated so that the slug-forming ingredients have a basicity (CaO+MgO)/SiO2, as determined from the contents of CaO, MgO, and SiO2 in the feed material mixture, of 1.3 to 2.3 and further have an MgO content (MgO) of 5 to 13 wt.%.

Abstract translation: 一种通过在移动床型加热中将包含含铁氧化物的物质（例如铁矿石）和含碳还原剂（例如含碳材料）的进料混合物还原熔融而制备粒状铁金属的方法 /还原炉中，其中特别是从含碳材料例如煤进入颗粒状铁金属中的硫的含量被最小化。 因此，获得了硫含量降低的高质量的颗粒状铁金属。 调节进料混合物中所含的CaO-，MgO-和SiO 2物质的量，以使得成团成分具有碱性（CaO + MgO）/ SiO 2，由CaO，MgO， 和进料混合物中的SiO 2为1.3至2.3，并且还具有5至13重量％的MgO含量（MgO）。

公开(公告)号：EP1605067A4

公开(公告)日：2008-03-12

申请号：EP04714008

申请日：2004-02-24

Applicant: KOBE STEEL LTD

Inventor： ITO SHUZO ,  TSUGE OSAMU

IPC: C21B13/00 ,  C21B13/10 ,  C22B1/22 ,  C22B1/245 ,  C22B5/10 ,  F27B9/16 ,  C22B1/16

CPC classification number: C21B13/008 ,  C21B13/0006 ,  C21B13/105 ,  C22B1/22 ,  C22B1/245 ,  C22B5/10 ,  Y02P10/136

Abstract: A process for producing particulate iron metal through the reducing fusion of a feed material mixture comprising an iron oxide-containing substance, e.g., iron ore, and a carbonaceous reducing agent, e.g., a carbon-containing material, in a moving-bed type heating/reducing oven, wherein especially the content of the sulfur which has come into the particulate iron metal from the carbon-containing material such as coal is minimized. Thus, high-quality particulate iron metal reduced in sulfur content is obtained. The amounts of CaO-, MgO-, and SiO2-containing substances contained in the feed material mixture are regulated so that the slug-forming ingredients have a basicity (CaO+MgO)/SiO2, as determined from the contents of CaO, MgO, and SiO2 in the feed material mixture, of 1.3 to 2.3 and further have an MgO content (MgO) of 5 to 13 wt.%.

Abstract translation: 一种通过在移动床型加热中将包含含铁氧化物的物质（例如铁矿石）和含碳还原剂（例如含碳材料）的进料混合物还原熔融而制备粒状铁金属的方法 /还原炉中，其中特别是从含碳材料例如煤进入颗粒状铁金属中的硫的含量被最小化。 因此，获得了硫含量降低的高质量的颗粒状铁金属。 调节进料混合物中所含的CaO-，MgO-和SiO 2物质的量，以使得成团成分具有碱性（CaO + MgO）/ SiO 2，由CaO，MgO， 和进料混合物中的SiO 2为1.3至2.3，并且还具有5至13重量％的MgO含量（MgO）。

公开(公告)号：EP1605067A1

公开(公告)日：2005-12-14

申请号：EP04714008.2

申请日：2004-02-24

Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

Inventor： ITO, Shuzo ,  TSUGE, Osamu

IPC: C21B13/10 ,  C22B1/16

CPC classification number: C21B13/008 ,  C21B13/0006 ,  C21B13/105 ,  C22B1/22 ,  C22B1/245 ,  C22B5/10 ,  Y02P10/136

Abstract: The amounts of a CaO-containing substance, an MgO-containing substance, and a SiO 2 -containing substance, contained in a raw material mixture, are adjusted such that manufacturing operation is performed with the slag basicity (CaO + MgO)/SiO 2 of 1.3 to 2.3, and with MgO-concentration of 5 to 13% by mass as to the slag composition, which are dependent upon the concentration of each of CaO, MgO, and SiO 2 , contained in the raw material mixture. This provides a manufacturing method for high-quality granulated metallic iron with low sulfur concentration, wherein a raw material mixture containing an iron-oxide-containing substance such as iron ore and a carbonaceous reducing agent such as a carbon material are subjected to reducing and melting with a moving hearth-type reducing furnace while suppressing sulfur concentration as much as possible, generated in the granulated metallic iron, particularly due to the carbon material such as coal.

Abstract translation: 含CaO的物质，含MgO物质和含SiO 2的物质，含在原料混合物的量，被调节成使得制造操作与炉渣碱度（CaO的+ MgO）的/ 1.3的SiO 2进行 至2.3，MgO浓度为炉渣组成的5〜13质量％，这取决于原料混合物中所含的CaO，MgO和SiO 2各自的浓度。 这提供了高品质的制造方法制粒低硫浓度，其特征在于，含有含氧化铁物质，例如铁矿石和作为碳材料的碳质还原剂这样剂的原料混合物进行还原和熔化金属铁 在移动炉底式还原炉的同时尽可能抑制颗粒状金属铁中产生的硫浓度，特别是由于诸如煤的碳材料。

公开(公告)号：EP1437420A1

公开(公告)日：2004-07-14

申请号：EP03799416.7

申请日：2003-08-29

Applicant: Kabushiki Kaisha Kobe Seiko Sho

Inventor： TANAKA, Hidetoshi Kobe Corporate Research Labs ,  MIYAHARA, Itsuo Kobe Corporate Research Labs ,  UEMURA, Hiroshi Kobe Corporate Research Labs. ,  HARADA, Takao Kobe Corporate Research Labs. ,  KOBAYASHI, Isao Kobe Corporate Research Labs. ,  SUGITATSU, Hiroshi Kobe Corporate Research Labs.

IPC: C21B5/02

CPC classification number: C21B13/0006 ,  C21B13/006 ,  C21B13/008 ,  C21B13/105 ,  C21B13/14 ,  C21B13/143 ,  C21C5/54 ,  C22B34/1218 ,  C22B34/1281 ,  Y02P10/136 ,  Y02P10/216 ,  Y02P10/23

Abstract: The present invention provides a method for efficiently manufacturing a titanium oxide-containing slag from a material including titanium oxide and iron oxide, wherein a reduction of titanium dioxide is suppressed and the electric power consumption is minimized. The method includes the steps of: heating a raw material mixture including titanium oxide, iron oxide, and a carbonaceous reductant, or the raw material mixture further including a calcium oxide source, in a reducing furnace; reducing the iron oxide in the mixture to form reduced iron; feeding the resultant mixture to a heating melting furnace; heating the resultant mixture in the heating melting furnace to melt the reduced iron and separate the reduced iron from a titanium oxide-containing slag; and discharging and recovering the titanium oxide-containing slag out of the furnace.

Abstract translation: 将氧化钛，氧化铁，碳质还原剂和氧化钙源的原料混合物供给还原炉。 将混合物中的氧化铁还原成铁，将产物供给加热式熔融炉。 铁水与炉渣分离。 回收所得到的氧化钛含量的渣。

公开(公告)号：EP1365036A1

公开(公告)日：2003-11-26

申请号：EP03018218.2

申请日：1999-09-02

Applicant: Mitsubishi Heavy Industries, Ltd.

Inventor： Fujioka, Hironori, Mitsubishi Heavy Industries Ltd ,  Mizuki, Hideaki, Mitsubishi Heavy Industries, Ltd. ,  Hirata, Koichi, Mitsubishi Heavy Industries, Ltd. ,  Itano, Shigeo, c/o Ryomei Engineering Co., Ltd. ,  Kamikawa, Susumu, Mitsubishi Heavy Industries Ltd. ,  Teramoto, Hisao, Mitsubishi Heavy Industries, Ltd. ,  Yamane, Takashi, Mitsubishi Heavy Industries, Ltd. ,  Sueda, Shigeki, Mitsubishi Heavy Industries, Ltd. ,  Kawamoto, Tetsumasa, Mitsubishi Heavy Indust. Ltd.

IPC: C22B1/24 ,  C22B1/244 ,  C22B1/245 ,  C21B13/10 ,  C21B13/14

CPC classification number: C21B13/14 ,  C21B13/008 ,  C21B13/10 ,  C21B13/105 ,  C22B1/244 ,  C22B1/245 ,  Y02P10/136

Abstract: Several methods and production facilities are provided in order to solve several problems encountered in conventional methods and facilities for producing reduced iron by reducing raw material pellets of a mixture of an iron oxide powder and a reducing material powder in a rotary bed-type reducing furnace and by melting the reduced iron in a sealed-type electro-blast furnace.
A few method and facilities are provided for reliable utilization of wet mixture pellets and a preferable compositions of binders for forming the raw material mixture are selected. A method of forming raw materials pellets for use in a rotary bed-type reducing furnaces comprises preparing a mixture of an iron oxide powder, a coal powder and a hydrocarbon-type binder, and adding adjusting water to the pelleting mixture. The hydrocarbon-type binder comprises tar and either one or both of polyvinylalcohol and carboxymethylcellulose.

Abstract translation: 几种方法和生产设施中，为了解决在传统的方法和设备所遇到几个问题通过减少氧化铁粉末的混合物的原料粒料制造还原铁提供，并在旋转的床型的还原物质粉末还原炉和 通过熔化在密封型电高炉的还原铁。 提供了用于湿混合物粒料和粘合剂用于形成原料混合物的优选的组成的可靠利用一些方法和设备被选择。 形成用原料颗粒在旋转式床还原炉的方法包括：制备铁氧化物粉末，煤粉和烃型粘合剂的混合物，并加水调整到制粒混合物。 烃型粘合剂包含焦油和任一个或两个聚乙烯醇和羧甲基纤维素的。

公开(公告)号：EP1338660A1

公开(公告)日：2003-08-27

申请号：EP01978958.5

申请日：2001-10-30

Applicant: NIPPON STEEL CORPORATION

Inventor： IBARAKI, Tetuharu, C/O NIPPON STEEL CORPORATION ,  ODA, Hiroshi, C/O NIPPON STEEL CORPORATION ,  IMURA, Shoji, C/O NIPPON STEEL CORPORATION ,  TAKAHASHI, Masaharu, C/O NIPPON STEEL CORPORATION

IPC: C22B1/16

CPC classification number: C22B1/245 ,  C21B13/0046 ,  C21B13/008 ,  C21B13/105 ,  C22B1/2406 ,  C22B5/10 ,  F27B9/16 ,  F27B2009/3607 ,  F27D2003/001 ,  Y02P10/136

Abstract: The present invention provides a method and facility for preventing crumbling and powderization of green pellets when producing high strength green pellets using a powder feedstock and using the pellets in a rotary hearth reducing furnace and for efficiently reducing the same. It comprises kneading by a kneader 5 a feedstock of a powder of a fine particle size (20 to 80 wt% having size of not more than 10 µm) including a metal oxide and carbon-bearing powder fed from a feed storage tank 1 and producing green pellets by a pan type pelletizer 7. The green pellets are screened by a pellet screen 9, then dried by a pellet dryer 11 and reduced by firing in a rotary hearth reducing furnace 13. At that time, the green pellets are continuously conveyed to prevent crumbling.

Abstract translation: 本发明提供用于预防崩溃，粉化生球团矿的当使用粉末原料生产高强度生球团矿和使用该粒料在回转炉底式还原炉和用于有效降低相同的方法和设施。 它包括通过捏合机5的微细粒径的粉末的原料混炼（具有不超过10微米尺寸20〜80重量％）包括：从进料储存罐1和进料的金属氧化物和含碳粉末 用盘形造球机7.生球团矿通过粒料屏幕9筛选生产生球团矿，然后通过颗粒干燥器11干燥，并减少了在回转炉底式还原炉13，在时间烧制没有，则生球团矿被连续输送 防止摇摇欲坠。

公开(公告)号：EP0861909B1

公开(公告)日：2002-11-06

申请号：EP98301432.5

申请日：1998-02-26

Applicant: Wishbone Investments Limited

Inventor： Bilke, Thomas

IPC: C22B1/243 ,  C22B1/24 ,  C22B7/02 ,  C21B11/02 ,  C04B28/10 ,  B09B3/00 ,  C22C33/08

CPC classification number: C22B1/243 ,  C21B13/008 ,  C21C2005/4666 ,  C22B1/24 ,  Y02P10/214 ,  Y02P10/216 ,  Y02P10/226

公开(公告)号：EP0643141A1

公开(公告)日：1995-03-15

申请号：EP94202526.3

申请日：1994-09-05

Applicant: Akzo Nobel N.V.

Inventor： Steeghs, Harry R.G.

IPC: C21B13/00

CPC classification number: C21B13/008 ,  C21B13/00

Abstract: A method for abating the incidence of cluster formation of reducible iron-containing material during the direct reduction of said material is disclosed. The method generally comprises contacting the reducible iron-containing material with a cluster-abating effective amount of a dispersion of a particulate material.

Abstract translation: 一种用于直接还原所述物料的过程中减弱的可还原含铁物料的簇形成的发生率方法游离缺失盘。 该方法的基因集会包括与凝块抑制有效量的颗粒材料的分散体的接触可还原含铁物料。

公开(公告)号：EP0207779A3

公开(公告)日：1988-12-07

申请号：EP86305084

申请日：1986-07-01

Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO

Inventor： Ashie, Takehiko ,  Tsuchiya, Osamu ,  Watanabe, Ryo ,  Imanishi, Nobuyuki ,  Onoda, Mamoru ,  Maekawa, Masahiro

IPC: C21B13/00 ,  C21B13/02 ,  C22B01/24

CPC classification number: C23C4/04 ,  C21B5/008 ,  C21B13/008

Abstract: A direct reduction process using a vertical furnace is disclosed in which iron ore (including lump ore and pellets) charged in the furnace is previously treated with a cement coating applied to the surface of the ore. The cement may be Portland cement and is used in a quantity within a predetermined range.