公开(公告)号：EP2225401A2

公开(公告)日：2010-09-08

申请号：EP08867608.5

申请日：2008-12-18

申请人： Nu-Iron Technology, LLC

发明人： GOVINDASWAMI, Narayan

IPC分类号： C21B11/08 ,  F27B9/20 ,  F27B15/02

CPC分类号： C21B13/10 ,  C21B11/08 ,  C21B13/0046 ,  F27B9/22 ,  F27B9/225 ,  F27B9/26 ,  F27B9/3011 ,  F27B9/38 ,  F27B9/39 ,  F27D3/0033 ,  F27D3/04

摘要： A battery of stationary hearth furnaces, and method for using, for producing metallic iron nodules having a furnace having a stationary hearth, an inlet and an outlet; a heating chamber beneath the stationary hearth having heated fluids circulated thereto and heating reducible material on the stationary hearth; passageways circulating fluids, through ports from the furnace housing above the reducible material to the heating chamber beneath; burners and air inlets in the furnace and optionally in at least one passageway and a heating chamber for drying and heating the reducible material, driving off and burning volatile material, and forming metallic iron nodules; a loading device for loading reducible material and optionally hearth material onto the stationary hearth through the inlet; and a discharging device capable of discharging metallic iron nodules and optionally related material from the stationary hearth through the outlet.

公开(公告)号：EP2247759B1

公开(公告)日：2015-03-25

申请号：EP09712738.5

申请日：2009-01-30

申请人： Nu-Iron Technology, LLC

发明人： IWASAKI, Iwao ,  ENGLUND, David J. ,  KIESEL, Richard F.

IPC分类号： C22B1/14 ,  C22B1/16

CPC分类号： C21B13/105 ,  C21B13/0046 ,  C21B2300/04 ,  C22B1/245 ,  C22B5/10

公开(公告)号：EP2725108A1

公开(公告)日：2014-04-30

申请号：EP14000254.4

申请日：2008-12-18

申请人： Nu-Iron Technology, LLC

发明人： Govindaswami, Narayan

IPC分类号： C21B11/08 ,  F27B9/20 ,  F27B15/02 ,  C21B13/10 ,  F27B9/22 ,  F27B9/30 ,  F27B9/38 ,  F27B9/39 ,  F27D3/00 ,  F27D3/04 ,  F27B9/26

CPC分类号： C21B13/10 ,  C21B11/08 ,  C21B13/0046 ,  F27B9/22 ,  F27B9/225 ,  F27B9/26 ,  F27B9/3011 ,  F27B9/38 ,  F27B9/39 ,  F27D3/0033 ,  F27D3/04

摘要： A battery of stationary hearth furnaces, and method for using, for producing metallic iron nodules having a furnace having a stationary hearth, an inlet and an outlet; a heating chamber beneath the stationary hearth having heated fluids circulated thereto and heating reducible material on the stationary hearth; passageways circulating fluids, through ports from the furnace housing above the reducible material to the heating chamber beneath; burners and air inlets in the furnace and optionally in at least one passageway and a heating chamber for drying and heating the reducible material, driving off and burning volatile material, and forming metallic iron nodules; a loading device for loading reducible material and optionally hearth material onto the stationary hearth through the inlet; and a discharging device capable of discharging metallic iron nodules and optionally related material from the stationary hearth through the outlet.

摘要翻译： 固定式炉底炉的电池，以及用于制造具有炉子的入口和出口的金属铁结核的方法， 在固定炉床下方的加热室具有循环到其上的加热流体和在固定炉膛上的可加热还原材料; 通过循环流体，通过从可还原材料上方的炉壳体到下面的加热室的端口; 燃烧器和空气入口，并且可选地在至少一个通道和加热室中，用于干燥和加热可还原材料，驱除和燃烧挥发性物质，并形成金属铁结核; 用于将可还原材料和任选的炉床材料加载到通过入口的固定炉床上的装载装置; 以及能够通过出口从固定炉床排出金属铁结核和任选的相关材料的排出装置。

公开(公告)号：EP2614172A1

公开(公告)日：2013-07-17

申请号：EP11824175.1

申请日：2011-09-09

申请人： Nu-Iron Technology, LLC

发明人： LEVANDUSKI, Gary M. ,  BARTHOLOMEW, Kyle ,  HENDRICKSON, David W. ,  MANNING, Christopher P. ,  RAMJEWAN, Anthony

IPC分类号： C23C4/02

CPC分类号： B07B1/00 ,  C21B11/06 ,  C21B13/08 ,  Y02P10/136 ,  Y10T428/2982 ,  Y10T428/2991

摘要： A processed DRI material having an average surface roughness (Ra) of less than 1.5 μm is disclosed. A method and system for making processed DRI are also disclosed. One embodiment of the method and system may include assembling a rotatable chamber having an internal screen capable of supporting DRI during tumbling, with at least one opening in the chamber to permit fines to exit the chamber during tumbling, and delivering DRI into the chamber to tumble the DRI on the screen to remove fines from the DRI. Another embodiment of the method and system may include assembling a rotatable chamber having a feed end and an exit end, and having a screen therein capable of supporting DRI as the DRI moves through the chamber, and delivering DRI to the chamber and rotating the chamber to tumble the DRI while removing fines.

摘要翻译： 公开了平均表面粗糙度（Ra）小于1.5μm的经加工的DRI材料。 还公开了用于制作经处理的DRI的方法和系统。 该方法和系统的一个实施例可包括组装具有能够在翻滚期间支撑DRI的内部筛网的可旋转腔室，腔室中具有至少一个开口以允许细粉在翻滚期间离开腔室，并且将DRI输送到腔室中以翻倒 屏幕上的DRI去除DRI中的罚款。 该方法和系统的另一个实施例可以包括组装具有进料端和出口端的可旋转腔室，并且其中具有能够在DRI移动通过腔室时支撑DRI的丝网，并且将DRI传送到腔室并且将腔室旋转到 去除罚款时翻滚DRI。

公开(公告)号：EP2500441A1

公开(公告)日：2012-09-19

申请号：EP12004528.1

申请日：2007-07-26

申请人： Nu-Iron Technology, LLC

发明人： Iwasaki, Iwao ,  Lindgren, Andrew J. ,  Kiesel, Richard F.

IPC分类号： C21B13/00 ,  C21B13/10

CPC分类号： C21B13/0046 ,  C21B13/008 ,  C21B13/105

摘要： Method and system for producing metallic nuggets includes providing reducible mixture of reducing material (such as carbonaceous material) and reducible iron bearing material (such as iron oxide) arranged in discrete portions, such as mounds or briquettes, on at least a portion of a hearth material layer (such as carbonaceous material). A coarse overlayer of carbonaceous material is provided over at least some of the discrete portions. Heating the discrete portions of reducible mixture to 1425 °C or 1400 °C or 1375 °C results in formation of an intermediate product of metallic iron nuggets and slag, and one or more metallic iron nuggets. The intermediate product with less than 5% mass MgO in the slag may have the ratio of percent by weight sulfur in the slag over percent sulfur in the metallic nuggets of at least about 12 or at least about 15. The metallic iron nuggets may have a sulfur content of less than 0.03%.

摘要翻译： 用于生产金属块的方法和系统包括在炉床的至少一部分上提供可分离的部分如土堆或压块的可还原材料（例如碳质材料）和可还原的铁轴承材料（例如氧化铁） 材料层（如含碳材料）。 在至少一些离散部分上提供粗碳质材料覆盖层。 将可还原混合物的分散部分加热到1425℃或1400℃或1375℃导致形成金属铁块和炉渣的中间产物以及一种或多种金属铁块。 在炉渣中具有小于5％质量MgO的中间产物可以具有至少约12或至少约15的金属块中的硫中硫的比例（重量百分比）超过硫的比例。金属铁块可以具有 硫含量小于0.03％。

公开(公告)号：EP1844167A1

公开(公告)日：2007-10-17

申请号：EP05824307.2

申请日：2005-12-07

申请人： Nu-Iron Technology, LLC

发明人： IWASAKI, Iwao ,  LALICH, Michael C. ,  BEAUDIN, Robert C. ,  KIESEL, Richard F. ,  LINDGREN, Andrew L. ,  BLEIFUSS, Rodney L

IPC分类号： C21B13/00 ,  C21B13/10

CPC分类号： F27B9/028 ,  C21B13/0046 ,  C21B13/006 ,  C21B13/008 ,  C21B13/10 ,  C21B13/105 ,  C22B1/245 ,  C22B5/10 ,  F27B9/045 ,  F27B9/12 ,  F27B9/20 ,  F27B9/40

摘要： Method and system for producing metallic nuggets includes providing reducible mixture (e.g., reducible micro-agglomerates; reducing material and reducible iron bearing material; reducible mixture including additives such as a fluxing agent; compacts, etc.) on at least a portion of a hearth material layer. In one embodiment, a plurality of channel openings extend at least partially through a layer of the reducible mixture to define a plurality of nugget forming reducible material regions. Such channel openings may be at least partially filled with nugget separation fill material (e.g., carbonaceous material). Thermally treating the layer of reducible mixture results in formation of one or more metallic iron nuggets. In other embodiments, various compositions of the reducible mixture and the formation of the reducible mixture provide one or more beneficial characteristics.

摘要翻译： 用于生产金属块的方法和系统包括在炉膛的至少一部分上提供可还原混合物（例如，可还原的微团聚物;还原材料和可还原的含铁材料;包括诸如助熔剂的添加剂的可还原混合物;压块等） 材料层。 在一个实施例中，多个通道开口至少部分地延伸穿过一层可还原混合物以限定多个形成块的可还原材料区域。 这种通道开口可以至少部分地填充有熔核分离填充材料（例如含碳材料）。 热处理可还原混合物层导致形成一个或多个金属铁块。 在其他实施方案中，可还原混合物的各种组合物和可还原混合物的形成提供一种或多种有益特性。