公开(公告)号：US20150135896A1

公开(公告)日：2015-05-21

申请号：US14352529

申请日：2013-06-27

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Toshiya Harada ,  Takashi Arai ,  Hiroshi Hirata

IPC分类号： C21C7/00 ,  C21C5/52

CPC分类号： C21C7/0087 ,  C04B5/06 ,  C21C5/5229 ,  C21C5/527 ,  C21C2005/5235 ,  C21C2300/04 ,  F27B3/183 ,  F27B19/04 ,  F27D3/14 ,  F27D15/00 ,  Y02P10/216

摘要： The method of reduction processing of steel-making slag, includes: a hot steel-making slag inflow process of continuously or intermittently charging, from a slag supplying container, hot steel-making slag to a molten slag layer on a molten iron contained in an electric furnace while adjusting an amount of inflow with the slag supplying container; a reducing agent supplying process of supplying a reducing agent to the molten slag layer; an electrifying and heating process of heating the molten iron and the molten slag layer through application of electric power; and a reduction process of continuing reduction processing of the hot steel-making slag in a non-oxidizing atmosphere while intermittently discharging either one or both of the molten iron or molten slag of the molten slag layer.

摘要翻译： 炼钢渣的还原处理方法包括：从炉渣供给容器，热炼钢渣到铁水中的熔融渣层连续或间歇充入的热炼钢渣流入工序 电炉，同时调节与炉渣供应容器的流入量; 向所述熔渣层供给还原剂的还原剂供给工序; 通过施加电力来加热铁水和熔渣层的通电加热过程; 以及在非氧化性气氛中持续还原处理热炼钢渣的同时间歇地排出熔融炉渣层的铁水或熔融渣中的一种或两种的还原过程。

公开(公告)号：US09534266B2

公开(公告)日：2017-01-03

申请号：US14352925

申请日：2013-06-27

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Toshiya Harada ,  Takashi Arai ,  Hiroki Fukumura

IPC分类号： F27D25/00 ,  F27D17/00 ,  C21C7/00 ,  F27D15/00 ,  F27D3/14 ,  C04B5/06 ,  C21C5/52 ,  F27B3/18 ,  F27B19/04

CPC分类号： C21C7/0087 ,  C04B5/06 ,  C21C5/5229 ,  C21C5/527 ,  C21C2005/5235 ,  C21C2300/04 ,  F27B3/183 ,  F27B19/04 ,  F27D3/14 ,  F27D15/00 ,  Y02P10/216

摘要： This slag-supplying container of an electric furnace for reduction processing of steel-making slag includes: a container body that causes hot steel-making slag to flow to the electric furnace; a slag discharging portion connected with an electric-furnace-side slag-supplying port; a slag receiving portion that receives the hot steel-making slag supplied; a lid that opens and closes the slag receiving portion; an exhausting portion that discharges exhaust gas from the electric furnace; and, a tilting unit that tilts the container body to adjust the amount of inflow of the hot steel-making slag to the electric-furnace-side slag-supplying port.

摘要翻译： 用于炼钢渣的还原加工的电炉的渣供给容器包括：使热炼钢渣流到电炉的容器主体; 与电炉侧炉渣供给口连接的排渣部; 接收供给的热炼钢渣的炉渣收容部; 打开和关闭炉渣接收部分的盖子; 从电炉排出废气的排气部; 以及倾斜单元，其倾斜容器主体以调节热炼钢渣到电炉侧炉渣供给口的流入量。

公开(公告)号：US09238846B2

公开(公告)日：2016-01-19

申请号：US14353961

申请日：2013-06-27

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Toshiya Harada ,  Takashi Arai ,  Hiroki Fukumura

IPC分类号： C21C5/52 ,  C21C7/00 ,  F27D15/00 ,  F27D3/14 ,  C04B5/06 ,  F27B3/18 ,  F27B19/04

CPC分类号： C21C7/0087 ,  C04B5/06 ,  C21C5/5229 ,  C21C5/527 ,  C21C2005/5235 ,  C21C2300/04 ,  F27B3/183 ,  F27B19/04 ,  F27D3/14 ,  F27D15/00 ,  Y02P10/216

摘要： This reduction processing apparatus for a steel-making slag that continuously performs reduction processing to a hot steel-making slag by using an electric furnace includes: a slag-supplying container that charges the hot steel-making slag into the electric furnace; an electrode that is provided at the electric furnace and heats a molten slag layer on a molten iron produced by reducing the hot steel-making slag; an auxiliary-raw-material supplying unit that supplies an auxiliary-raw-material including a reducing agent to the molten slag layer; and a tilting unit that tilts the slag-supplying container and adjusts a charging amount of the hot steel-making slag to the electric furnace.

摘要翻译： 用于使用电炉对炼钢渣进行连续进行还原处理的炼钢渣的还原处理装置包括：将热炼钢渣充入电炉内的炉渣供给容器， 设置在电炉中的电极，通过还原热炼钢渣而生成的铁水上的熔融渣层加热; 辅助原材料供给单元，其向所述熔融渣层供给包含还原剂的辅助原料; 以及倾斜单元，其使炉渣供给容器倾斜并且将热炼钢渣的装料量调整到电炉。

公开(公告)号：US20140247856A1

公开(公告)日：2014-09-04

申请号：US14352925

申请日：2013-06-27

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Toshiya Harada ,  Takashi Arai ,  Hiroki Fukumura

IPC分类号： F27D3/14

CPC分类号： C21C7/0087 ,  C04B5/06 ,  C21C5/5229 ,  C21C5/527 ,  C21C2005/5235 ,  C21C2300/04 ,  F27B3/183 ,  F27B19/04 ,  F27D3/14 ,  F27D15/00 ,  Y02P10/216

摘要： This slag-supplying container of an electric furnace for reduction processing of steel-making slag includes: a container body that causes hot steel-making slag to flow to the electric furnace; a slag discharging portion connected with an electric-furnace-side slag-supplying port; a slag receiving portion that receives the hot steel-making slag supplied; a lid that opens and closes the slag receiving portion; an exhausting portion that discharges exhaust gas from the electric furnace; and, a tilting unit that tilts the container body to adjust the amount of inflow of the hot steel-making slag to the electric-furnace-side slag-supplying port.

摘要翻译： 用于炼钢渣的还原加工的电炉的渣供给容器包括：使热炼钢渣流到电炉的容器主体; 与电炉侧炉渣供给口连接的排渣部; 接收供给的热炼钢渣的炉渣收容部; 打开和关闭炉渣接收部分的盖子; 从电炉排出废气的排气部; 以及倾斜单元，其倾斜容器主体以调节热炼钢渣到电炉侧炉渣供给口的流入量。

公开(公告)号：US20140291901A1

公开(公告)日：2014-10-02

申请号：US14353961

申请日：2013-06-27

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Toshiya Harada ,  Takashi Arai ,  Hiroki Fukumura

IPC分类号： C21C5/52 ,  C04B5/06 ,  F27D15/00

CPC分类号： C21C7/0087 ,  C04B5/06 ,  C21C5/5229 ,  C21C5/527 ,  C21C2005/5235 ,  C21C2300/04 ,  F27B3/183 ,  F27B19/04 ,  F27D3/14 ,  F27D15/00 ,  Y02P10/216

摘要： This reduction processing apparatus for a steel-making slag that continuously performs reduction processing to a hot steel-making slag by using an electric furnace includes: a slag-supplying container that charges the hot steel-making slag into the electric furnace; an electrode that is provided at the electric furnace and heats a molten slag layer on a molten iron produced by reducing the hot steel-making slag; an auxiliary-raw-material supplying unit that supplies an auxiliary-raw-material including a reducing agent to the molten slag layer; and a tilting unit that tilts the slag-supplying container and adjusts a charging amount of the hot steel-making slag to the electric furnace.

摘要翻译： 用于使用电炉对炼钢渣进行连续进行还原处理的炼钢渣的还原处理装置包括：将热炼钢渣充入电炉内的炉渣供给容器， 设置在电炉中的电极，通过还原热炼钢渣而生成的铁水上的熔融渣层加热; 辅助原材料供给单元，其向所述熔融渣层供给包含还原剂的辅助原料; 以及倾斜单元，其使炉渣供给容器倾斜并且将热炼钢渣的装料量调整到电炉。

公开(公告)号：US08192521B2

公开(公告)日：2012-06-05

申请号：US12672215

申请日：2008-07-15

申请人： Masataka Tateishi

发明人： Masataka Tateishi

IPC分类号： C04B5/06 ,  C22B9/10

CPC分类号： F27B3/19 ,  C21C5/567 ,  C21C2005/5288 ,  C21C2300/04 ,  C22B7/04 ,  C22B9/10 ,  F27D3/14 ,  F27D3/1509 ,  F27D3/159 ,  Y02P10/216

摘要： A method of suppressing slag foaming that can grasp a state of slag foaming in the continuous melting furnace and accurately suppress the slag foaming so as to enable continuous production of molten metal in a stable state. This method includes charging of a suppressor into slag in the furnace, measuring a flow rate of a flue gas discharged from the continuous melting furnace during blowing of the slag over time, increasing a charging speed rate of the suppressor if the flue gas flow rate has an increasing tendency and decreasing the charging speed rate of the suppressor if the flue gas flow rate has a decreasing tendency.

摘要翻译： 一种抑制炉渣发泡的方法，其能够掌握连续熔融炉中的炉渣发泡状态并精确地抑制炉渣发泡，从而能够连续生产稳定的熔融金属。 该方法包括将抑制器装入炉内的炉渣中，测量随着时间推移炉渣吹出期间从连续熔炼炉排出的烟道气的流量，如果烟气流量有 如果烟气流量具有降低的趋势，则增加趋势并降低抑制器的充电速度。

公开(公告)号：US09217185B2

公开(公告)日：2015-12-22

申请号：US14352529

申请日：2013-06-27

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Toshiya Harada ,  Takashi Arai ,  Hiroshi Hirata

IPC分类号： C21C5/52 ,  C21C7/00 ,  C04B5/06 ,  F27D15/00 ,  F27D3/14 ,  F27B3/18 ,  F27B19/04

CPC分类号： C21C7/0087 ,  C04B5/06 ,  C21C5/5229 ,  C21C5/527 ,  C21C2005/5235 ,  C21C2300/04 ,  F27B3/183 ,  F27B19/04 ,  F27D3/14 ,  F27D15/00 ,  Y02P10/216

摘要： The method of reduction processing of steel-making slag, includes: a hot steel-making slag inflow process of continuously or intermittently charging, from a slag supplying container, hot steel-making slag to a molten slag layer on a molten iron contained in an electric furnace while adjusting an amount of inflow with the slag supplying container; a reducing agent supplying process of supplying a reducing agent to the molten slag layer; an electrifying and heating process of heating the molten iron and the molten slag layer through application of electric power; and a reduction process of continuing reduction processing of the hot steel-making slag in a non-oxidizing atmosphere while intermittently discharging either one or both of the molten iron or molten slag of the molten slag layer.

摘要翻译： 炼钢渣的还原处理方法包括：从炉渣供给容器，热炼钢渣到铁水中的熔融渣层连续或间歇充入的热炼钢渣流入工序 电炉，同时调节与炉渣供应容器的流入量; 向所述熔渣层供给还原剂的还原剂供给工序; 通过施加电力来加热铁水和熔渣层的通电加热过程; 以及在非氧化性气氛中持续还原处理热炼钢渣的同时间歇地排出熔融炉渣层的铁水或熔融渣中的一种或两种的还原过程。

公开(公告)号：US20110203415A1

公开(公告)日：2011-08-25

申请号：US12672215

申请日：2008-07-15

申请人： Masataka Tateishi

发明人： Masataka Tateishi

IPC分类号： C21C7/00 ,  C22B9/00

CPC分类号： F27B3/19 ,  C21C5/567 ,  C21C2005/5288 ,  C21C2300/04 ,  C22B7/04 ,  C22B9/10 ,  F27D3/14 ,  F27D3/1509 ,  F27D3/159 ,  Y02P10/216

摘要： A method of suppressing slag foaming that can grasp a state of slag foaming in the continuous melting furnace and accurately suppress the slag foaming so as to enable continuous production of molten metal in a stable state. This method includes charging of a suppressor into slag in the furnace, measuring a flow rate of a flue gas discharged from the continuous melting furnace during blowing of the slag over time, increasing a charging speed rate of the suppressor if the flue gas flow rate has an increasing tendency and decreasing the charging speed rate of the suppressor if the flue gas flow rate has a decreasing tendency.

摘要翻译： 一种抑制炉渣发泡的方法，其能够掌握连续熔融炉中的炉渣发泡状态并精确地抑制炉渣发泡，从而能够连续生产稳定的熔融金属。 该方法包括将抑制器装入炉内的炉渣中，测量随着时间推移炉渣吹出期间从连续熔炼炉排出的烟道气的流量，如果烟气流量有 如果烟气流量具有降低的趋势，则增加趋势并降低抑制器的充电速度。

公开(公告)号：US20070283785A1

公开(公告)日：2007-12-13

申请号：US11386575

申请日：2006-03-21

申请人： Archana Agrawal ,  Kanai Sahoo ,  Sukomal Ghosh ,  Banshi Pandey

发明人： Archana Agrawal ,  Kanai Sahoo ,  Sukomal Ghosh ,  Banshi Pandey

IPC分类号： C22B15/00

CPC分类号： C22B15/0054 ,  C21B3/06 ,  C21B13/0013 ,  C21B13/12 ,  C21B2400/02 ,  C21C2300/04 ,  C22B5/10 ,  C22B7/04 ,  Y02P10/136 ,  Y02P10/212 ,  Y02W30/543

摘要： The present invention relates to a process for recovery of iron from copper slag. This invention particularly relates to a process for recovery of iron from a waste like granulated copper slag generated during the production of copper from its ores by a pyrometallurgical method. The present invention will be useful for solving the ecological and environmental issues with an added economic advantage of utilising the dump slag generated in the copper plants. Novelty of the present invention is process for the preparation of value added products viz grinding grade cast iron using copper slag generated during the processing of copper concentrate which otherwise is considered as a waste. Other novel features of the inventions are creating a homogeneous mixture of slag, reductant and flux so that reaction kinetics is more than conventional process. The reductant is used in such a way so that maximum recovery of iron can take place.

摘要翻译： 本发明涉及从铜渣回收铁的方法。 本发明特别涉及一种通过火法冶金法从其矿石从生产铜中产生的废物像颗粒状铜渣中回收铁的方法。 本发明将有助于解决生态环境问题，并利用铜厂产生的倾倒渣具有额外的经济优势。 本发明的新颖性是制备增值产品的方法，即使用在铜精矿加工过程中产生的铜渣的研磨级铸铁，否则被认为是废物。 本发明的其它新颖特征是产生炉渣，还原剂和助熔剂的均匀混合物，使得反应动力学超过常规方法。 还原剂以这样的方式使用，使得铁的最大回收率可以发生。