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1. 发明公开

EP2987871A4 BLAST FURNACE OPERATION METHOD 有权
标题翻译：高炉操作程序
公开(公告)号：EP2987871A4
公开(公告)日：2016-04-27
申请号：EP14785099
申请日：2014-03-28
申请人： JFE STEEL CORP
发明人： MURAO AKINORI , FUJIWARA DAIKI , WATAKABE SHIRO , SATO MICHITAKA , WATANABE TAKASHI , SHIMOMURA AKIO
IPC分类号： C21B5/00
CPC分类号： C21B5/003 , C21B5/007 , F27D3/16 , F27D3/18 , F27D2003/168 , F27D2003/185
摘要： [Task] It is to propose a blast furnace operation method capable of increasing the productivity and decreasing CO 2 emission even in the operation at a pulverized coal ratio of not less than 150 kg/t-p. [Solution] A method of operating a blast furnace by blowing a pulverized coal at an amount of not less than 150 kg/t-p from tuyeres through a lance into a blast furnace, characterized in that when the operation is performed under a condition that lump coke charged from a furnace top has a strength defined in JIS K2151 (DI 150 15 ) of not more than 87%, the pulverized coal blown through the tuyere contains not more than 60 mass% as a weight ratio of coal having a particle size of not more than 74 µm and has an average volatile matter of not more than 25 mass%, and a blast temperature blown through the tuyere is not higher than 1100°C, oxygen is simultaneously blown into the furnace with the blowing of the pulverized coals through the lance and a gas having an oxygen concentration of 60 vol%-97 vol% is used as a carrier gas for the blowing of the pulverized coal.

2. 发明专利

JP2014084472A Blast furnace operation method 有权
标题翻译： BLAST FURNACE操作方法
公开(公告)号：JP2014084472A
公开(公告)日：2014-05-12
申请号：JP2012231538
申请日：2012-10-19
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： WATANABE TAKASHI , FURUKAWA YASUMITSU , TATARA REO
IPC分类号： C21B5/00
摘要： PROBLEM TO BE SOLVED: To provide a blast furnace operation method, in the case dust coals with different descriptions are blown from different lances, capable of efficiently increasing the burning rate of the whole of the dust coals to be blown.SOLUTION: The descriptions and blowing quantity of the dust coals blown from lances 4 are decided in advance, and the increasing slant of the dust coal burning rate to the increasing quantity of the blowing quantity of the oxygen to be blown is obtained in advance. In the case the increasing slant of the dust coal burning rate to the increasing quality of the oxygen to be blown has been known per description and blowing quantity of the dust coal, the burning rate of the whole of the dust coals in accordance with the oxygen blowing quantity from each lance 4 can be found from the weighted average burning rate of the dust coal blowing quantity. At this time, when the blowing quantity of the oxygen blown from each lance 4 is increased in the high order of the increasing slant of the burning rate of the dust coal blown from all the lances 4, the burning rate of the whole of the dust coals is most efficiently increased. For obtaining the maximum efficiency burning rate, the blowing quantity of the oxygen blown from each lance 4 is set in accordance with the description and blowing quantity of the dust coals blown from all the lances 4.
摘要翻译：要解决的问题：为了提供高炉操作方法，在具有不同描述的粉煤从不同的喷枪吹出的情况下，能够有效地提高整个被吹入的粉煤的燃烧速度。解决方案：预先确定从喷枪4喷出的粉尘煤的吹出量，并预先获得粉煤燃烧速度的上升倾向与吹送氧量的增加量的增加。在这种情况下，粉尘煤燃烧速率的上升倾向与待吹氧气质量的提高是已知的，并且粉尘煤的吹入量，根据氧气的整体粉煤的燃烧速率可以从粉煤喷吹量的加权平均燃烧速率中找出每个喷枪4的吹送量。此时，从喷枪4喷出的粉尘煤的燃烧速度的倾斜倾斜的高位，从每个喷枪4吹出的氧气的吹送量增加时，整个灰尘的燃烧速度煤炭效率最高。为了获得最大效率燃烧率，根据从所有喷枪4吹送的粉尘煤的描述和吹送量来设定从每个喷枪4吹出的氧气的吹送量。

3. 发明专利

JP2011163756A Device for charging material into sintering machine 有权
标题翻译：将材料充入烧结机的装置
公开(公告)号：JP2011163756A
公开(公告)日：2011-08-25
申请号：JP2011094564
申请日：2011-04-21
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： NODA HIDETOSHI , ICHIKAWA KOICHI , KUROSAWA SHINICHI , SATO HIDEAKI , WATANABE YOSHINORI , MUTSUKAWA SHOICHI , WATANABE TAKASHI , HASHIMOTO TAKESHI , MACHIDA SATOSHI
IPC分类号： F27B21/10 , C22B1/20 , F27B21/06 , F27D3/00
CPC分类号： F27D3/0033 , F27B21/06
摘要： PROBLEM TO BE SOLVED: To provide a device for charging material into a sintering machine capable of obtaining high quality, high yield rate and high productivity by improving adjustment performance of distribution of grain size and distribution of components in a material layer of a pallet of the sintering machine. SOLUTION: This device for charging material into the sintering machine includes a material feeding mechanism for feeding the material for sintering to the pallet, and a chute positioned near the material feeding mechanism at its upper end, and at an upper part of the pallet at its lower end, and inclined toward the direction opposite to the moving direction of the pallet. The chute is constituted of a plurality of rods disposed in parallel with each other at prescribed intervals from each other from an upper end to a lower end in the width direction of the pallet. The chute has the curved shape recessed from its upper end toward a lower end, and an average value of a change rate of the gradient connecting the rods adjacent to each other within a range corresponding to 1/3 of an upper end side of a horizontal length of the chute, is 1.5-10 times of an average value of a change rate of the gradient within a range corresponding to 2/3 of a lower end side. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于将材料充电到能够获得高质量，高产率和高生产率的烧结机中的装置，其通过改进颗粒尺寸分布的调整性能和在材料层中的组分分布烧结机托盘。解决方案：用于将材料充入烧结机的装置包括：用于将料料供给到托盘的材料供给机构，以及位于材料供给机构的上端位于其上部的滑槽托盘在其下端，并且朝向与托盘移动方向相反的方向倾斜。滑槽由多个杆构成，多个杆从托盘的宽度方向上的上端到下端彼此以规定的间隔彼此平行地设置。滑槽具有从其上端朝向下端凹进的弯曲形状，并且在相对于彼此相邻的杆的相对于水平面的上端侧的1/3的范围内的梯度的变化率的平均值斜槽的长度是对应于下端侧的2/3的范围内的梯度的变化率的平均值的1.5-10倍。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2009235437A Method for controlling blast furnace operation at blowing-stop time in large reduction of charged material level 审中-公开
标题翻译：在大量减少充电材料水平下控制吹制停止时间的燃烧炉操作方法
公开(公告)号：JP2009235437A
公开(公告)日：2009-10-15
申请号：JP2008079560
申请日：2008-03-26
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： FUKUMOTO YASUHIRO , WATANABE TAKASHI , OKOCHI IWAO
IPC分类号： C21B5/00
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling a blast furnace operation which the lowering of the temperature in the blast furnace at blowing-stop time is prevented and the development of furnace cooling even in the blowing-stop for long time can be prevented.
SOLUTION: In the blast furnace, in which the blowing is stopped under state of the reducing level by laying the charged material 3 in the furnace at the lower part of a tuyere 4, the method for controlling the blast furnace operation at the blowing-stop time in the large reduction of the charged material level, is used, in which the temperature in the furnace is kept by heating the charged material 3 in the furnace with a burner 8 inserted from the tuyere 4. The temperature of the charged material 3 in the furnace, is monitored by measuring the temperature in a molten pig iron tapping hole 5, and it is desirable that the heating of the charged material in the furnace is performed with the burner 8 according to the temperature of the charged material 3 in the furnace.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种控制高炉操作的方法，其中防止吹风停止时间下的高炉中的温度降低，以及长时间的吹制停止中的炉冷却的发展可以防止。解决方案：在鼓风炉中，通过在风口4的下部放置带电材料3在炉中，通过在炉内停止吹送的方式，在高炉操作的方法中，在使用从风口4插入的燃烧器8的情况下，通过对炉内的带电材料3进行加热来保持炉内的温度，从而大大降低带电材料的吹制停止时间。通过测量熔融生铁出铁孔5中的温度来监测炉中的材料3，并且期望根据带电材料3的温度，用燃烧器8对炉中的带电材料进行加热在炉中。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2014051707A Method of manufacturing electrogalvanized steel sheet 有权
标题翻译：制造电化钢板的方法
公开(公告)号：JP2014051707A
公开(公告)日：2014-03-20
申请号：JP2012197090
申请日：2012-09-07
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： WATANABE TAKASHI
IPC分类号： C25D7/06 , C25D5/26
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an electrogalvanized steel sheet preventing the occurrence of dents by adhesion of foreign substances to bridle roll used in electrogalvanizing process.SOLUTION: A method of manufacturing electrogalvanized steel sheet uses a rubber bridle roll having a roll surface with a center line average roughness (Ra) of 20 μm or more and an average spacing of convexoconcave (Sm) of 300 μm or more.
摘要翻译：要解决的问题：提供一种电镀锌钢板的制造方法，其防止外来物质附着在电镀锌工艺中使用的卷绕辊上产生凹陷。解决方案：电镀锌钢板的制造方法使用具有辊中心线平均粗糙度（Ra）为20μm以上，凸凹平均间隔（Sm）为300μm以上的表面。

6. 发明专利

JP2013237879A Method for blowing pulverized coal in blast furnace and device for detecting blowing abnormality of combustion-supporting gas 有权
标题翻译：用于吹制泡沫中的粉煤的方法和用于检测燃烧支持气体的吹扫异常的装置
公开(公告)号：JP2013237879A
公开(公告)日：2013-11-28
申请号：JP2012110036
申请日：2012-05-11
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： FURUKAWA YASUMITSU , WATANABE TAKASHI , TATARA REO , KIYAMA TAKUYA
IPC分类号： C21B5/00 , B65G53/66 , C21B7/00 , F27D21/00
摘要： PROBLEM TO BE SOLVED: To highly accurately determine blowing abnormality of combustion-supporting gas without using furnace pressure.SOLUTION: Pulverized coal together with combustion-supporting gas is blown into a blast furnace 1 from a tuyere 3 via a blast tube 2 using the blast tube 2 connected to the tuyere 3 of the blast furnace 1 and a double-tube lance 4. When a blast pressure to the blast tube 2 is denoted as Pb, a pressure to a combustion-supporting gas flow path 4B is denoted as Px, a flow velocity to the blast tube 2 is denoted as Vb, a flow velocity to the combustion-supporting gas flow path 4B is denoted as Vx, and a deviation between a pressure loss difference (ΔPb-ΔPx), which is a difference between a pressure loss ΔPb in the blast tube 2 obtained from the flow velocity Vb and a pressure loss ΔPx in the combustion-supporting gas flow path 4B obtained from the flow velocity Vx, and a pressure difference (Pb-Px), which is a difference between the blast pressure Pb and the combustion-supporting gas pressure Px, is greater than a predetermined allowable pressure ΔV, it is determined that blowing abnormality of the combustion-supporting gas occurs.
摘要翻译：要解决的问题：高精度地确定不使用炉内压力的助燃气体的吹出异常。解决方案：将粉煤与燃烧气体一起从风口3通过鼓风管2通过鼓风吹入鼓风炉1 连接到高炉1的风口3的管2和双管喷枪4.当对鼓风管2的鼓风压力表示为Pb时，对燃烧载气流路4B的压力表示为Px，向鼓风管2的流速表示为Vb，向燃烧载气流路4B的流速表示为Vx，压力损失差（＆Dgr; Pb-＆Dgr; Px）之间的偏差为从流速Vb获得的鼓风管2中的压力损失与Dgr; Pb之间的差异以及从流速Vx获得的燃烧载气流路4B中的压力损失＆Dgr; Px和压差（Pb- Px），这是blast pres的区别确定Pb和助燃气体压力Px大于预定容许压力Dgr; V时，判定为燃烧气体气体发生异常。

7. 发明专利

JP2012224932A Method for blowing pulverized coal into blast furnace and equipment therefor 有权
标题翻译：将粉碎煤粉碎成高炉的设备及其设备的方法
公开(公告)号：JP2012224932A
公开(公告)日：2012-11-15
申请号：JP2011095849
申请日：2011-04-22
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： WATANABE TAKASHI , WAKAI TSUKURU , TAKEU HIROSHI , ONO TAKUYA
IPC分类号： C21B5/00 , C21B7/00
摘要： PROBLEM TO BE SOLVED: To provide a blowing method and equipment therefor by means of which in blowing of pulverized coal into a blast furnace, an adjustable range of a pulverized coal ratio (PCR) can be expanded.SOLUTION: There is provided the method for blowing the pulverized coal into the blast furnace through blowing lances which are arranged in a blasting passage of a blast furnace tuyere 11 and direct toward the inside of the furnace. In the method, a plurality of blowing lances 12, 13 having different supplying routes are arranged in the blast furnace tuyere 11 and the pulverized coal are separately blown with the blowing lances 12, 13.
摘要翻译：要解决的问题：为了提供一种吹入方法和设备，通过该方法和设备将粉煤吹入高炉，可以扩大粉煤比（PCR）的可调范围。解决方案：提供了通过吹入喷枪将粉煤吹入高炉的方法，该喷枪布置在高炉风口11的喷砂通道中并直接朝向炉内。在该方法中，在高炉风口11中配置有多个具有不同供给路径的喷枪12,13，并且将粉煤与喷枪12,13分开吹送。（C）2013，JPO＆INPIT

8. 发明专利

JP2011163757A Device for charging material into sintering machine 有权
标题翻译：将材料充入烧结机的装置
公开(公告)号：JP2011163757A
公开(公告)日：2011-08-25
申请号：JP2011094565
申请日：2011-04-21
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： NODA HIDETOSHI , ICHIKAWA KOICHI , KUROSAWA SHINICHI , SATO HIDEAKI , WATANABE YOSHINORI , MUTSUKAWA SHOICHI , WATANABE TAKASHI , HASHIMOTO TAKESHI , MACHIDA SATOSHI
IPC分类号： F27B21/10 , C22B1/20 , F27B21/06 , F27D3/00
CPC分类号： F27D3/0033 , F27B21/06
摘要： PROBLEM TO BE SOLVED: To provide a device for charging material into a sintering machine capable of obtaining high quality, high yield rate and high productivity by improving adjustment performance of distribution of grain size and distribution of components in a material layer of a pallet of the sintering machine.
SOLUTION: This device for charging material into the sintering machine includes a material feeding mechanism for feeding the material for sintering to the pallet, and a chute positioned near the material feeding mechanism at its upper end, and at an upper part of the pallet at its lower end, and inclined toward the direction opposite to the moving direction of the pallet. The chute is constituted of a plurality of rods disposed in parallel with each other at prescribed intervals from each other from an upper end to a lower end in the width direction of the pallet, and projection intervals in the vertical direction among the plurality of rods in a region where the falling materials collide with each other at an upper part of the chute, are nearly-constant.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于将材料充电到能够获得高质量，高产率和高生产率的烧结机中的装置，其通过改进颗粒尺寸分布的调整性能和在材料层中的组分分布烧结机托盘。解决方案：用于将材料充入烧结机的装置包括：用于将料料供给到托盘的材料供给机构，以及位于材料供给机构的上端位于其上部的滑槽托盘在其下端，并且朝向与托盘移动方向相反的方向倾斜。滑槽由多个杆构成，多个杆从托盘的宽度方向上的上端到下端彼此以规定间隔彼此平行地设置，并且多个杆中的多个杆中的垂直方向上的突出间隔落下的材料在滑槽的上部彼此碰撞的区域几乎是恒定的。版权所有（C）2011，JPO＆INPIT

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