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31.发明申请METHOD AND SYSTEM FOR OPERATING A BLAST FURNACE WITH TOP-GAS RECYCLE AND A FIRED TUBULAR HEATER 有权使用顶部气体回收和燃烧式管状加热器操作火焰炉的方法和系统公开(公告)号：US20150135900A1
公开(公告)日：2015-05-21
申请号：US14412071
申请日：2013-07-03
CPC分类号： C21B5/06 , C10K1/005 , C10K1/02 , C10K1/04 , C21B7/002 , C21B7/22 , C21B2100/282 , C21B2100/44 , C21B2100/64 , C21D1/34 , C21D1/52 , F27B1/22 , F27B1/24 , F27D17/002 , F27D17/004 , F27D17/008 , F27D2017/006 , Y02P10/122 , Y02P10/126 , Y02P10/212 , Y02P10/283
摘要： A blast furnace system is used wherein the coke rate is decreased by recycling upgraded top gas from the furnace back into its shaft section (which upgraded top gas is heated in a tubular heater prior to being recycled). The top gas, comprising CO, CO2 and H2, is withdrawn from the upper part of the blast furnace; cooled and cleaned of dust, water, and CO2 for increasing its reduction potential and is heated to a temperature above 850° C. before being recycled thus defining a first gas flow path used during normal operation of the blast furnace. Uniquely, a second gas flow path for continued circulation of top gas selectively through the heater and a cooler during operation interruptions of the blast furnace allows time for gradual controlled cool down of the heater in a manner to avoid heat-shock damage to the tubular heater.
摘要翻译： 使用高炉系统，其中通过将升级的顶部气体从炉返回到其轴部分（其中升级的顶部气体在再循环之前在管式加热器中被加热）来降低焦炭速率。 包括CO，CO 2和H 2的顶部气体从高炉的上部排出; 冷却并清洁灰尘，水和CO2，以增加其还原电位，并在再循环之前加热至高于850℃的温度，从而限定在高炉正常运行期间使用的第一气体流路。 独特地，用于在高炉的操作中断期间，顶部气体选择性地通过加热器和冷却器继续循环的第二气体流动路径允许加热器逐渐受控冷却的时间，以避免对管状加热器的热冲击损坏 。
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公开(公告)号：US08298316B2
公开(公告)日：2012-10-30
申请号：US12988862
申请日：2009-05-27
摘要： In a method for producing pig iron using iron ore with a high content of zinc, a blast furnace raw material 2 is produced using iron ore with a high content of zinc which contains 0.01 mass % or more of zinc and 50 mass % or more of iron, pig iron is produced by charging the blast furnace raw material 2 into a blast furnace 1 and, at the same time, zinc-containing dust 4 in a blast furnace discharge gas is recovered, and zinc 6 is recovered from the zinc-containing dust 4 using a reduction furnace 5. A mixed raw material into which the zinc-containing dust 4, a carbonaceous solid reducing material and a slag-making material are mixed is preferably charged on a movable hearth, and the mixed raw material is preferably reduced by supplying heat from an upper portion of the movable hearth so as to recover zinc 6 while producing reduced iron 7.
摘要翻译： 在使用铁含量高的锌的生铁生产方法中，使用含有0.01质量％以上的锌和50质量％以上的锌的铁含量高的铁矿石生产高炉原料2 铁，生铁是通过将高炉原料2装入高炉1中，同时回收高炉排出气体中的含锌粉尘4，从含锌的废气中回收锌6 使用还原炉的粉尘4优选将含有锌的粉尘4，碳质固体还原材料和造渣材料混合的混合原料装入可移动的炉床上，优选将所述混合原料还原 通过从可移动炉床的上部供应热量以回收锌6，同时产生还原铁7。
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公开(公告)号：US08202338B2
公开(公告)日：2012-06-19
申请号：US11994250
申请日：2006-06-13
申请人： Alex Lajtonyi
发明人： Alex Lajtonyi
IPC分类号： B01D45/12
CPC分类号： C21B7/002 , B04C5/04 , C21B7/22 , C21B2100/44
摘要： The invention relates to a cyclone separator for blast furnace gas including: a cyclone vessel having a central axis and including a side wall, a top wall and bottom wall; a first inlet duct connected with an end to the side wall of the cyclone vessel at a predetermined position intermediate the top and bottom wall; and a central outlet duct which traverses through the top wall of the cyclone vessel and extends into the cyclone vessel, and a further inlet duct connected with an end to the side wall of the cyclone vessel in circumferentially spaced relationship to the first inlet duct.
摘要翻译： 本发明涉及一种用于高炉煤气的旋风分离器，包括：具有中心轴线并包括侧壁，顶壁和底壁的旋风容器; 第一入口管道，其在与所述顶壁和底壁之间的预定位置处连接到所述旋风器容器的侧壁的端部; 以及中心出口管道，其穿过旋风分离器容器的顶壁并延伸到旋风器容器中，以及另外的入口管道，其与旋流器容器的侧壁的端部以与第一入口管道周向间隔开的关系连接。
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公开(公告)号：US20110203234A1
公开(公告)日：2011-08-25
申请号：US12675904
申请日：2008-07-22
申请人： Alfred Wolsfeld
发明人： Alfred Wolsfeld
IPC分类号： B01D45/16
摘要： A conventional dust-catcher for blast furnace gas comprises a pressure vessel, with a gas inlet and outlet dome (14), a separation chamber (16) and a lower dust hopper (18), and a diffuser pipe (26) extending axially through the gas inlet and outlet dome (14) into the separation chamber (16). To increase the separation efficiency of such a dust hopper (18), it is proposed to centrally arrange a flow deflecting chamber (50, 50′), having a smaller cross-section than the separation chamber (16), in the separation chamber (16), so that there remains an annular settlement chamber (52) between the inner wall of the separation chamber (16). The diffuser pipe (26) is connected to this flow deflecting chamber (50, 50′) so as to axially discharge a downward gas flow into the top end of the flow deflecting chamber (50, 50′), wherein this downward gas flow is deflected upward. An annular swirling device (58) with guide vanes (60) is arranged in the top end of the flow deflecting chamber (50, 50′) around the lower end of the diffuser pipe (26) and acts as outlet opening for the gas flow into the into the pressure vessel of the dust-catcher. The guide vanes (60) form a vortex gas flow rising around the diffuser pipe (26) upward into the gas inlet and outlet dome (14).
摘要翻译： 用于高炉煤气的常规吸尘器包括具有气体入口和出口圆顶（14），分离室（16）和下部灰尘料斗（18）的压力容器和沿轴向延伸的扩散管（26） 气体入口和出口圆顶（14）进入分离室（16）。 为了提高这种粉尘料斗（18）的分离效率，建议将分离室（16）的横截面较小的流动偏转室（50,50'）集中布置在分离室（ 16），使得在分离室（16）的内壁之间留有环形沉降室（52）。 扩散管（26）连接到该流动偏转室（50,50'），以将向下的气流轴向地排放到流动偏转室（50,50'）的顶端，其中该向下气流为 向上偏转 具有引导叶片（60）的环形旋转装置（58）布置在绕着扩散管（26）的下端的流动偏转室（50,50'）的顶端中，并且作为气流的出口 进入吸尘器的压力容器。 引导叶片（60）形成在扩散管（26）周围上升到气体入口和出口拱顶（14）中的涡流气流。
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公开(公告)号：US20110041652A1
公开(公告)日：2011-02-24
申请号：US12988862
申请日：2009-05-27
IPC分类号： C21B5/06
摘要： In a method for producing pig iron using iron ore with a high content of zinc, a blast furnace raw material 2 is produced using iron ore with a high content of zinc which contains 0.01 mass % or more of zinc and 50 mass % or more of iron, pig iron is produced by charging the blast furnace raw material 2 into a blast furnace 1 and, at the same time, zinc-containing dust 4 in a blast furnace discharge gas is recovered, and zinc 6 is recovered from the zinc-containing dust 4 using a reduction furnace 5. A mixed raw material into which the zinc-containing dust 4, a carbonaceous solid reducing material and a slag-making material are mixed is preferably charged on a movable hearth, and the mixed raw material is preferably reduced by supplying heat from an upper portion of the movable hearth so as to recover zinc 6 while producing reduced iron 7.
摘要翻译： 在使用铁含量高的锌的生铁生产方法中，使用含有0.01质量％以上的锌和50质量％以上的锌的铁含量高的铁矿石生产高炉原料2 铁，生铁是通过将高炉原料2装入高炉1中，同时回收高炉排出气体中的含锌粉尘4，从含锌的废气中回收锌6 使用还原炉的粉尘4优选将含有锌的粉尘4，碳质固体还原材料和造渣材料混合的混合原料装入可动的炉床上，优选将所述混合原料还原 通过从可移动炉床的上部供应热量以回收锌6，同时产生还原铁7。
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公开(公告)号：US5556680A
公开(公告)日：1996-09-17
申请号：US339117
申请日：1994-11-14
申请人： Lars Hellman
发明人： Lars Hellman
IPC分类号： B01J8/00 , B66C13/12 , C21B7/22 , F27D17/00 , H02G9/04 , B32B3/10 , B32B3/14 , B32B23/02 , F16G1/04
CPC分类号： C21B7/22 , B01J8/003 , B66C13/12 , F27D17/008 , H02G9/04 , Y10T428/18 , Y10T428/187 , Y10T428/24132 , Y10T428/24612 , Y10T428/24785
摘要： A cover belt for a duct is presented, which can be swung up from a closed position by a deflecting device movable in the longitudinal direction of the duct and falls back in its closed position behind the deflecting device. The cover belt is made of a flexibly deformable material with metallic reinforcements. The cover belt is comprised of a securing strip, a joint strip and a cover strip. The securing strip is secured along the duct, the joint strip connects the securing strip flexibly to the cover strip, and the cover strip spans the duct and is supported on both sides of the duct. At least one belt-shaped textile reinforcement layer with essentially the same overall width as the cover belt is embedded in the flexibly deformable material in the area of the neutral plane of the cover belt. First oblong elements of the metallic reinforcement are arranged between the underside of the cover belt and the textile reinforcements so as to extend essentially at right angles to the longitudinal direction over the full width of the cover belt.
摘要翻译： 提供用于管道的覆盖带，其可以通过可沿着管道的纵向方向移动的偏转装置从关闭位置向上摆动并且在偏转装置后面落回其关闭位置。 盖带由具有金属增强件的柔性可变形材料制成。 盖带由固定条，接合条和盖带组成。 固定条沿着管道固定，接头条将固定条柔性地连接到盖条上，并且盖条跨越管道并且被支撑在管道的两侧。 至少一个具有与覆盖带宽度基本上相同的带状织物加强层嵌入在带状物的中性平面区域中的柔性可变形材料中。 金属加强件的第一椭圆形元件布置在覆盖带的下侧和织物加强件之间，以便在盖带的整个宽度上基本上与纵向成直角地延伸。
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公开(公告)号：US4171276A
公开(公告)日：1979-10-16
申请号：US951435
申请日：1978-10-16
申请人： Gary A. Brehm
发明人： Gary A. Brehm
摘要： The dissemination of fugitive dust particles into the atmosphere is reduced by treating the particles with an aqueous solution of alkylphenoxy polyethoxy ethanol and copolymer of ethylene oxide and propylene oxide.
摘要翻译： 通过用烷基苯氧基聚乙氧基乙醇的水溶液和环氧乙烷和环氧丙烷的共聚物处理颗粒来减少散逸的尘埃颗粒进入大气中的物质。
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公开(公告)号：US4136050A
公开(公告)日：1979-01-23
申请号：US769087
申请日：1977-02-16
申请人： Gary A. Brehm
发明人： Gary A. Brehm
摘要： The dissemination of fugitive dust particles into the atmosphere is reduced by treating the particles with an aqueous solution of octylphenoxy polyethoxy ethanol and copolymer of ethylene oxide and propylene oxide.
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公开(公告)号：US4093434A
公开(公告)日：1978-06-06
申请号：US670542
申请日：1976-03-25
CPC分类号： C21B7/22 , Y10S261/54
摘要： The gas-cleaning apparatus for a blast furnace operating under pressure using a differential-pressure washing arrangement whereby the differential-pressure washer comprises at least one annular gap with an annular-gap passage and an axially adjustable body received in the annular gap washer. The nozzle is disposed upstream of the annular-gap washer to spray the washing liquid into the gas which is accelerated through the annular gap. The position of this body is controlled in response to the gas pressure within the head of the blast furnace. The annular gap of the washer diverges in the direction of flow of the gas and the body has a complementary shape so that the gap width remains generally constant although its flow cross section increases with the diameter of the annular gap in the direction of flow of the gas.
摘要翻译： 用于使用差压冲洗装置在压力下运行的高炉的气体清洁装置，由此差压缓冲器包括至少一个具有环形间隙通道的环形间隙和容纳在环形间隙垫圈中的可轴向调节的主体。 喷嘴设置在环形间隙垫圈的上游，以将洗涤液体喷射到通过环形间隙加速的气体中。 响应于高炉头部内的气体压力来控制本体的位置。 垫圈的环形间隙沿着气体的流动方向发散，并且主体具有互补形状，使得间隙宽度保持大体上恒定，尽管其流动横截面随环形间隙的直径沿着 加油站。
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40.发明授权
公开(公告)号：US3851827A
公开(公告)日：1974-12-03
申请号：US38093173
申请日：1973-07-19
申请人： ITALSIDER SPA
发明人： CARIGNANI M , ROSSI G , PASERO E , CONTI M , DUFOUR BERTE C , ZMOLNIG H
CPC分类号： C22B1/2406 , B03B9/04 , B03B9/061 , C21B5/008 , C21B7/22 , Y02W30/523
摘要： A method and device for transforming slurries coming from wet purification plants for fumes from blast furnaces and basic oxygen furnaces into a controlled size granular solid material. Object of the method concerned is to recover the steel mill and basic oxygen furnace slurries and slimes and to transform same into a solid material which may be easily carried by the usual carrying means used in steel mills, and has a controlled granulometric distribution. Such a material further may be sent together with the other iron ores to the installations for preparing the steel mill burden (homogeneizing, sintering and the like), or it may be treated by particular devices which render it immediately usable in steel mills.
摘要翻译： 用于将来自湿式净化设备的浆料转化成高炉和碱性氧气炉的烟雾成为受控尺寸的颗粒状固体材料的方法和装置。
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