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31. 发明专利

JPH05214414A METHOD FOR REDUCING ORE OR METAL OXIDE AT HIGH SPEED 失效
公开(公告)号：JPH05214414A
公开(公告)日：1993-08-24
申请号：JP5425692
申请日：1992-02-04
申请人： KOBE STEEL LTD
发明人： SASAHARA SHIGEKI , SHIMIZU SHOKEN , NOZAWA KENTARO , KAMIJO TSUNAO , MIYAGAWA KAZUYA , KOBAYASHI ISAO , INABA SHINICHI
IPC分类号： C21B5/00 , C21B11/00
摘要： PURPOSE:To provide a high speed reduction method capable of performing stable operation while preventing the local temp. lowering in the reaction space by executing high speed reduction from ore and metal oxide to molten metal in gas flow in a reaction space. CONSTITUTION:By preforming the high temp. reaction space or while forming the space in a solid packing layer in a furnace, the ore or metal oxide particles coated with carbon on the whole surface or a part, are continuously supplied into the reaction space to form the stream of the particles and in this stream, the particles are reduced while smelting to make molten metal.

32. 发明专利

JP2009256737A Method for controlling furnace-top gas temperature in blast furnace 有权
标题翻译：用于控制烤炉中的炉顶温度的方法
公开(公告)号：JP2009256737A
公开(公告)日：2009-11-05
申请号：JP2008108215
申请日：2008-04-17
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： YAMAGUCHI YASUHIRO , NISHIGUCHI AKIHIRO , MIYAGAWA KAZUYA
IPC分类号： C21B5/00
摘要： PROBLEM TO BE SOLVED: To provide a simplified and economical method for controlling a furnace-top gas temperature in a blast furnace by which the furnace-top gas temperature can be controlled in a wider range, without obstructing the stable operation of the blast furnace. SOLUTION: The method for controlling the temperature of gas exhausted from the furnace-top of the blast furnace, is provided for controlling the above gas temperature to an adequate temperature range by blending water-containing pellets as iron raw material to be charged. In the method, at least 10% or more of a yard-pellet which is stored in a raw material yard and subjected to water spray treatment after granulated and fired is blended as the iron raw material to be charged according to the moisture content of the pellet. Since the yard-pellet contains a large quantity of water in comparison with a direct-feeding pellet, the heat of vaporization of the contained water in the pellet in the furnace is large, a sensible heat is small and also an angle of repose becomes large together with an increase in the water content, consequently the iron raw material is easily deposited on the inner wall side of the furnace and the charging density of the iron raw material in the center part of the furnace becomes low, hence the gas permeability in the furnace is not obstructed resulting in the simplified and effective lowering of furnace-top gas temperature without incurring trouble in the operation. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于控制高炉中的炉顶气体温度的简化且经济的方法，通过该方法可以将炉顶气体温度控制在更宽的范围内，而不会妨碍炉顶气体温度的稳定运行高炉。解决方案：用于控制从高炉炉顶排出的气体的温度的方法用于通过将含水颗粒作为铁原料进行混合来控制上述气体温度至适当的温度范围。在该方法中，将原料场中储存的原料场中的至少10％以上的粒状和烧成后的水喷雾处理，作为待加料的铁原料，根据颗粒。由于与直接送料颗粒相比，码芯颗粒含有大量的水分，所以炉中的颗粒中含水量的蒸发热大，显热量小，休止角也变大伴随着水分含量的增加，铁原料易于沉积在炉内壁侧，炉体中心部分的铁原料的充填密度变低，因此在炉没有被阻塞，导致炉顶气体温度的简化和有效的降低，而不会引起操作中的麻烦。版权所有（C）2010，JPO＆INPIT

33. 发明专利

JP2006213980A Method for manufacturing sintered ore 有权
标题翻译：烧结炉的制造方法
公开(公告)号：JP2006213980A
公开(公告)日：2006-08-17
申请号：JP2005029633
申请日：2005-02-04
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MATSUMURA TOSHIHIDE , MIYAGAWA KAZUYA , YAMAGATA HITOAKI
IPC分类号： C22B1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a sintered ore, which predicts optimal water concentration for granulation with high accuracy in a raw material to be sintered containing a higher blend ratio of ore having high water-absorptivity such as pisolite ore and Maramamba ore, and can determine an amount of water to be added for granulation, with high accuracy.
SOLUTION: The manufacturing method comprises the steps of: determining each weighted average of a water content W and a pore volume V of a raw material to be sintered from a water content W
i and a pore volume V
i of each powder material composing the raw material and a blended ratio of each powder material; calculating the optimal water concentration Wo for granulation for the raw material to be sintered from the relational expression of Wo=W-3.1V+0.06; and adjusting the amount of water to be added so that the water concentration Wg in the raw material after water has been added can be in a range of Wo±allowable width ΔW (for instance, 1.5), wherein units of W
i , W, Wo, Wg and ΔW are mass% and units of V
i and V are cm
3 /g.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种制造烧结矿的方法，其预测在具有高吸水率的矿石混合比例如比硅铝矿的待烧结原料中以高精度进行造粒的最佳水浓度矿石和马拉曼巴矿石，并且可以高精度地确定添加的造粒水量。解决方案：制造方法包括以下步骤：从含水量W＆lt; SB＆gt;和/或孔中确定待烧结原料的含水量W和孔体积V的每个加权平均值构成原料的各种粉末材料的体积V / i>和每种粉末材料的混合比例; 从Wo = W-3.1V + 0.06的关系式计算待烧结原料造粒的最佳水浓度Wo; 并且调整添加水量使得水中的原料中的水分浓度Wg可以在Wo±允许宽度ΔW（例如1.5）的范围内，其中W i的单位 W，Wo，Wg和ΔW为质量％，V 和V的单位为cm 3 / SP / g。版权所有（C）2006，JPO＆NCIPI

34. 发明专利

JP2000328114A OPERATION OF BLAST FURNACE 失效
公开(公告)号：JP2000328114A
公开(公告)日：2000-11-28
申请号：JP12852899
申请日：1999-05-10
申请人： KOBE STEEL LTD
发明人： HORI RYUICHI , MIYAGAWA KAZUYA
IPC分类号： C21B5/00 , C21B7/00 , C21B7/16
摘要： PROBLEM TO BE SOLVED: To restrain the heat load and the development of molten iron flow on the furnace wall at a shaft part by using a Laval tuyere having a shrinkage diameter part of smaller diameter than the diameter at the inlet and the outlet of a tuyere as the tuyere below the high hear load position on the furnace wall at the shaft part, disposing the tip position of a lance for blowing auxiliary fuel in this tuyere at the outlet side of the tuyere from the shrinkage diameter part and blowing the auxiliary fuel into the blast furnace. SOLUTION: The tuyere positioned below a site having high heat load on the furnace wall at the shaft part is used as the Laval tuyere, and in the Laval tuyere, the tip position of the lance for blowing the auxiliary fuel is disposed at the outlet side of the tuyere from the shrinkage diameter part so as to blow the auxiliary fuel into the blast furnace. A raceway depth can be increased, and the blowing of the auxiliary fuel can be kept and increased by using such a Laval tuyere. Further, the gas flow can be changed from the peripheral flow to the canter flow and the heat load on the furnace wall at the shaft part can be reduced.

35. 发明专利

JPH11335713A PRODUCTION OF REDUCED IRON BRIQUETTE 失效
公开(公告)号：JPH11335713A
公开(公告)日：1999-12-07
申请号：JP7761099
申请日：1999-03-23
申请人： KOBE STEEL LTD
发明人： FUJI KOUSHIRO , TANAKA HIDETOSHI , HARADA TAKAO , SUGIYAMA TAKESHI , TAKENAKA YOSHIMICHI , MIYAGAWA KAZUYA , SHIROUCHI AKIJI , IWAKIRI HARUHISA , NISHIMURA MAKOTO , UMEKI TAKAO , HASHIMOTO SUMUTO , UEHARA TERUHISA
IPC分类号： C21B13/10
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a reduced iron by which the reduced iron briquette having high average quality can be obtd in high productivity. SOLUTION: Iron oxide briquette containing carbonaceous material having almost 10-30 mm in the range of grain diameter, is laid on the furnace hearth of a shifting floor type heating furnace so that the laid density becomes /mm, and thereafter, the iron oxide briquette is rapidly heated so that the surface temp. thereof becomes >=1200 deg.C within 1/3 of the staying time of this iron oxide briquette in the shifting floor type heating furnace. The, after making the reduced iron briquette by reducing until the metalloid ratio of the iron oxide briquette becomes >=85%, this reduced iron briquette is discharged from the moving floor type heating furnace.

36. 发明专利

JPH11241125A PRODUCTION OF REDUCED IRON PELLET AND REDUCED IRON PELLET PRODUCED BY THIS METHOD 失效
公开(公告)号：JPH11241125A
公开(公告)日：1999-09-07
申请号：JP35913298
申请日：1998-12-17
申请人： KOBE STEEL LTD
发明人： MIYAGAWA KAZUYA , IWAKIRI HARUHISA , SHIROUCHI AKIJI , SHIMIZU SHOKEN , KAMIJO TSUNAO , TAKENAKA YOSHIMICHI
IPC分类号： C22B1/16 , C21B13/10 , C22B7/02 , F27B17/00
摘要： PROBLEM TO BE SOLVED: To provide a reduced pellet having high reducing ratio and a producing method thereof which has suitable grain size and strength without containing low zinc content as harmful component as a blast furnace raw material, in dust generated in the iron works and containing iron oxide, particularly, by using the blast furnace dust and the other dust containing zinc component. SOLUTION: Carbonaceous material is adjusted so as to become the carbon content of 7-20 mass% of the total content of iron and zinc in the mixed raw material containing one or more kinds of dusts containing the iron oxide and zinc oxide and sufficient quantity of binder to combine the dust, and moisture is added, and this raw material is granulated into green pellet including the carbonaceous material. Successively, this granulated green pellet is dried and the dried pellet is charged into the sintering furnace and heated so as to be become 3-13 deg.C/sec temp. rising speed from 150 deg.C to 900 deg.C of this pellet mainly with the heat conduction of the radiation and the reduction of the zinc oxide and volatization of zinc are executed, and also the iron oxide is reduced.

37. 发明专利

JPH10287908A PRODUCTION OF REDUCED IRON BY FLUIDIZED BED 失效
公开(公告)号：JPH10287908A
公开(公告)日：1998-10-27
申请号：JP9772497
申请日：1997-04-15
申请人： KOBE STEEL LTD
发明人： TAKENAKA YOSHIMICHI , MIYAGAWA KAZUYA
IPC分类号： C21B13/00
摘要： PROBLEM TO BE SOLVED: To accelerate the reduction in a first fluidized bed and to produce reduced iron with good productivity by adding an oxygen-contg. gas to the waste gas from a second fluidized bed and introducing this gas into a first fluidized bed at the time of subjecting powder iron ores to prereduction with the first fluidized bed, then to final reduction with the second fluidized bed. SOLUTION: The powder iron ores are charged into the first fluidized bed where the ores are subjected to the prereduction. The ores are then charged into the second fluidized bed where the ores are subjected to the final reduction. At this time, a reducing gas is introduced and the oxygen-contg. gas is added to the waste gas (a) from the second fluidized bed. The temp. of the waste gas (a) is risen and the heated up waste gas (b) is introduced into the first fluidized bed to accelerate the reduction in the first fluidized bed. The amt. of the addition of the gaseous oxygen to the waste gas (a) is preferably set at the ratio satisfying the equation F1 : the oxygen molar ratio mol(O2 )/mol (the waste gas (a) of the second fluidized bed)] in the oxygen-contg. gas to be added per unit molar ratio of the waste gas a discharged from the second fluidized bed, ΔT: the target elevation value [ deg.C] of the temp. of the waste gas (a) discharged from the second fluidized bed}.

38. 发明专利

JP2014162938A Blast furnace operation method 有权
标题翻译： BLAST FURNACE操作方法
公开(公告)号：JP2014162938A
公开(公告)日：2014-09-08
申请号：JP2013033371
申请日：2013-02-22
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： UCHIDA HISASHI , KASAI AKITO , MIYAGAWA KAZUYA , NOZAWA KENTARO , MITSUOKA NAYUTA , ITO KENJI , TOYODA HITOSHI
IPC分类号： C21B5/00
摘要： PROBLEM TO BE SOLVED: To suppress growth of "bird's nest" reliably by using a premelt material containing metallic iron and iron oxides and also prevent abnormal descent of charged materials by utilizing the premelt material.SOLUTION: A method of operating a blast furnace 1 separates a premelt material containing metallic iron and iron oxides into a first separated material containing metallic iron and 10 mass% or less FeO and a second separated material containing 5 mass% or more FeO and 1 mass% or less metallic iron and has an inclusion ratio of granular iron of 0.5% or lower. The second separated material, in a ratio of 20 mass% or more of blowing auxiliary raw material to be blown into a tuyere, is blown into the tuyere 7 of a vertical metallurgical furnace 1, and the blowing auxiliary raw material of grain sizes of 10-1,000 μm is blown into the tuyere 7. The first separated material is supplied as raw material for the vertical metallurgical furnace.
摘要翻译：要解决的问题：通过使用含金属铁和铁氧化物的预熔融材料可靠地抑制“燕窝”的生长，并且还通过利用预熔材料来防止带电材料的异常下降。解决方案：操作高炉1的方法分离将含有金属铁和铁的氧化物的预熔融材料置于含有金属铁和10质量％以下的FeO的第一分离材料中，以及含有5质量％以上的FeO和1质量％以下的金属铁的第二分离材料， 0.5％以下的粒状铁。将第二分离材料以20质量％以上的吹入辅助原料吹入风口，吹入立式冶金炉1的风口7，并且将粒径为10的吹制辅助原料将-1000微米吹入风口7.第一分离材料作为垂直冶金炉的原料供应。

39. 发明专利

JP2010285684A Method for producing agglomerated ore including carbonaceous material to be used for vertical furnace 有权
标题翻译：用于生产包含用于垂直炉的碳质材料的聚合物的方法
公开(公告)号：JP2010285684A
公开(公告)日：2010-12-24
申请号：JP2009179560
申请日：2009-07-31
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MIYAGAWA KAZUYA , KASAI AKITO , TOYODA HITOSHI
IPC分类号： C22B1/245 , C21B5/00
摘要： PROBLEM TO BE SOLVED: To provide a method for producing an agglomerated ore including a carbonaceous material to be used for a vertical furnace, enabling further improvement of the efficiency of heat treatment while securing the strength of the agglomerated ore including the carbonaceous material obtained by removing tar through heat treatment.
SOLUTION: The method for producing the agglomerated ore includes: preparing a mixture C by mixing a powdery charcoal wood A having softening and melting properties with a powdery iron-containing material B; hot-forming the mixture C at 250 to 500°C with a twin-roll type forming machine 4 to produce a formed article D having a cubic content of 6-12 cm
3 ; and further heat-treating the formed article D in a heat-treatment facility 5 provided that an atmospheric temperature T is >800 to ≤1,300°C and a treatment time t (unit: min) is 1,200/T to 2,400/T to remove a tar content.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：待解决的问题：提供一种用于生产包括用于立式炉的碳质材料的凝聚矿石的方法，能够进一步提高热处理效率，同时确保包括碳质材料的凝聚矿石的强度通过热处理除去焦油获得。解决方案：生产附聚矿石的方法包括：通过将具有软化和熔融性质的粉状木炭A与含铁的材料B混合来制备混合物C; 用双辊型成型机4在250〜500℃下热成型混合物C，制成立方体含量为6〜12cm 3的成形体D。并且如果大气温度T> 800至≤300℃，处理时间t（单位：分钟）为1,200 / T至2,400 / T以除去，则在热处理设备5中进一步热处理成形品D 焦油含量。版权所有（C）2011，JPO＆INPIT

40. 发明专利

JP2005325435A Method for producing agglomerate including carbonaceous material for iron-making process 有权
标题翻译：生产碳酸钙的方法，包括用于制铁过程的碳质材料
公开(公告)号：JP2005325435A
公开(公告)日：2005-11-24
申请号：JP2004146805
申请日：2004-05-17
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MIYAGAWA KAZUYA , KASAI AKITO , YAMAGATA HITOAKI
IPC分类号： C22B1/14 , C22B1/244
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a method for producing an agglomerate including a carbonaceous material for an iron-making process, which has high strength even when employing the carbonaceous material with low softening flowability, and promotes a reductive reaction even without separately adding a reducing agent during the iron-making process. SOLUTION: The method for producing the agglomerate including the carbonaceous material for the iron-making process comprises: mixing a composition for the agglomerate including the raw material of iron oxide and the carbonaceous material at a temperature for the carbonaceous material to start softening or lower; then mixing the composition with a softening flowability accelerator which is in a solid state or a semisolid state when the above composition is mixed and is in a liquid state when the mixture would be compacted later at a temperature in which the carbonaceous material is in between (maximum fluidity temperature-30°C) and (maximum fluidity temperature+30°C), while controlling a ratio (a mass ratio) of the carbonaceous material and the softening flowability accelerator with respect to the raw material of iron oxide, to a range expressed by an expression (1); (carbonaceous material + softening flowability accelerator) : the raw material of iron oxide = 15 to 25 : 85 to 75; and then compacting the mixture at the above described temperature. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：提供一种制造包含用于制铁过程的碳质材料的附聚物的方法，即使使用具有低软化流动性的碳质材料也具有高强度，甚至在不分开地促进还原反应在制铁过程中加入还原剂。解决方案：制造包含用于制铁过程的碳质材料的附聚物的方法包括：在碳质材料的温度下将包含氧化铁原料和碳质材料的附聚物的组合物混合以开始软化或更低; 然后将组合物与上述组合物混合时为固态或半固体状态的软化流动性促进剂混合，并且当混合物将在碳质材料之间的温度稍后压实时处于液态最大流动温度-30℃）和（最大流动温度+ 30℃），同时控制含碳材料和软化流动促进剂相对于氧化铁原料的比例（质量比）到一定范围由表达式（1）表示; （碳质材料+软化流动促进剂）：氧化铁原料= 15〜25：85〜75; 然后在上述温度下压制混合物。版权所有（C）2006，JPO＆NCIPI

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