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    Verwendung eines Muffelofens zur Entzinkung von oxydischen zinkhaltigen Eisenträgern
    1.
    发明公开
    Verwendung eines Muffelofens zur Entzinkung von oxydischen zinkhaltigen Eisenträgern 失效
    Verwendung eines Muffelofens zur Entzinkung von oxydischen zinkhaltigenEisenträgern。

    公开(公告)号：EP0046146A1

    公开(公告)日：1982-02-17

    申请号：EP81890133.2

    申请日：1981-07-29

    申请人： VOEST-ALPINE Aktiengesellschaft

    发明人： Stift, Kurt, Dipl. Ing.

    IPC分类号： C21B13/04

    CPC分类号： C21B13/04 ,  C21B13/006 ,  C22B19/06 ,  Y02P10/216 ,  Y10S75/961

    摘要： Zur Abtrennung von Zink aus oxydischen Eisenträgern wird der Eisenträger in stückiger Form mit einer Mindestkorngröße von 5 mm mit stückigen Reduktionsmitteln einem gasdicht abschließbaren, schachtartigen Muffelofen (1) zugeführt. Die Beheizung des Muffelofens (1) erfolgt von außen, wofür Brennkammern (2 und 3) vorgesehen sind. Die Beschickung strömt im oberen Teil des Muffelofens durch eine Vorwärm- und Vorreduktionszone (4), sowie anschließend durch eine Reduktionszone (5), bevor das reduzierte Material ausgebracht wird. Verflüchtigtes Zink wird mit Reaktionsgasen aus wenigstens einer zwischen dem Aufgabe- und Austragsende des Muffelofens angeordneten Querschnittsebene vorzugsweise auf der Höhe des oberen Endes der Reaktionszone (5) abgeführt. Die Vorrichtung zur Durchführung des Verfahrens besteht aus einem Muffelofen (1), welcher an seinem Aufgabe- und Austragesende gasdicht abschließbar ist und in seiner Wandung zwischen diesen beiden Enden Gasaustrittsöffnungen (10) aufweist, welche unter Umgehung oder Durchsetzung der am Muffelofen außen angebrachten Heizeinrichtungen, beispielsweise der Brennkammern (2, 3), münden. Es sind vorzugsweise in Achsrichtung des Muffelofens mehrere Brennkammern vorgesehen, wobei die Gasaustrittsöffnungen (10) an zwischen den Brennkammern angeordneten Leitungen (11) angeschlossen sind. Die Reduktionsgase können nach Abtrennen des Zinks einer Brennkammer (2, 3) rückgeführt werden.

    摘要翻译： 1.使用马弗炉从含氧化物的含锌铁源（例如铁矿石，磨碎废物，特别是粉碎机）中除去锌，其中包括将铁源以块状最小粒径为5mm 与马弗炉中的块状还原剂一起被加热到外部，电荷在马弗炉的供给端和排出端之间经过预热和预还原区以及反应区，马弗炉 炉子适于在其供给和排出端以气密方式关闭，马弗炉的壁在位于马弗炉的端部之间的区域中设有气体出口，所述气体出口开口绕过或通过 通过外部安装在马弗炉上的加热装置，所述加热装置由外部围绕马弗炉的至少两个燃烧室形成，并且在轴向d 布置在相邻的燃烧室之间的导管连接到马弗炉的气体出口，并且位于马弗炉的区域的气体出口的横截面平面具有大于650℃的温度， 优选为700〜900℃

    PRODUCTION OF IRON USING ENVIRONMENTALLY-BENIGN RENEWABLE OR RECYCLED REDUCING AGENT
    5.
    发明公开
    PRODUCTION OF IRON USING ENVIRONMENTALLY-BENIGN RENEWABLE OR RECYCLED REDUCING AGENT 有权
    以环保可再生或循环异径剂制造Eisten

    公开(公告)号：EP1996735A4

    公开(公告)日：2009-08-12

    申请号：EP07752845

    申请日：2007-03-12

    申请人： UNIV MICHIGAN TECH

    发明人： EISELE TIMOTHY C ,  KAWATRA SURENDRA K

    IPC分类号： C22B1/245 ,  C21B13/00 ,  C21B13/04 ,  C22B5/10

    CPC分类号： C21B13/0066 ,  C21B13/0006 ,  C21B13/008 ,  C21B13/04 ,  C21C2007/0031 ,  C22B1/244 ,  C22B1/245 ,  C22B5/10 ,  Y02P10/136 ,  Y02P10/216

    摘要： To produce metallic iron from iron ore, a composition comprising a mass of material formed from a mixture of iron ore particles and particles of a reductant that is either a biomass material in particulate form or a plastic resinous material in particulate form is used. The reductant can also be a mixture of biomass material and resin in any proportions. The mass of material comprises at least one body having a shape adapted for smelting such as pellets, briquettes, pieces or lumps. The pellets have sufficient cohesion to maintain the shape into which they have been formed. The invention also provides a new method for smelting iron from its ore which comprises subdividing the ore into particles of a selected size, mixing the subdivided ore particles with particles of a biomass material or particles of a plastic resinous material or with mixtures thereof, forming a mass of the mixture into at least one body with a shape that is suited for smelting in a furnace and placing the body in a furnace and exposing it to sufficient heat to bring the iron therein to smelting temperature within the furnace to thereby produce metallic iron directly from the ore.

    MANUFACTURE OF IRON AND STEEL IN A DUPLEX SMELTER AND SOLID STATE OXIDE SUSPENSION PREREDUCER
    6.
    发明公开
    MANUFACTURE OF IRON AND STEEL IN A DUPLEX SMELTER AND SOLID STATE OXIDE SUSPENSION PREREDUCER 失效
    双金属和固态氧化物悬浮预处理中钢铁的制造

    公开(公告)号：EP0449891A4

    公开(公告)日：1992-03-11

    申请号：EP90900737

    申请日：1989-12-20

    申请人： CRA SERVICES LIMITED

    发明人： DRY, RODNEY, JAMES ,  LA NAUZE, ROBERT, DAVID

    IPC分类号： C21B11/00 ,  C21B13/00 ,  C21B13/14 ,  C21B11/08 ,  C21B13/04 ,  C21B13/10 ,  F27B19/02 ,  F27B19/04

    CPC分类号： C21B13/14 ,  Y02P10/136 ,  Y02P10/212

    摘要： Prereduced iron oxides are supplied to a smelting vessel (1) for the production of iron or steel by directing a hot reducing offgas from the vessel (1) into a vertical riser duct (8) without substantial cooling of the offgas and, by way of inlet (16), particulate iron oxide containing material is entrained in the hot reducing offgas as the gas is conveyed upwardly through the duct (8). The hot gas heats the entrained material to a temperature at which partial reduction of the iron oxide occurs, the hot gas thereby losing sensible heat. Additional materials may be introduced to the duct (8) for entrainment in the gas. Particulate material is separated in a cyclone (9) from the gas and the separated partially reduced material is introduced to the smelting vessel by way of passage (12). The particulate material, or part of it, may be recycled by way of passage (15) through the vertical riser duct before the partially reduced material is introduced to the smelting vessel and only part of the hot reducing offgas emitted by the vessel may be directed into the duct.

    DIRECT SMELTING PROCESS FOR PRODUCING METALS FROM METAL OXIDES
    7.
    发明公开
    DIRECT SMELTING PROCESS FOR PRODUCING METALS FROM METAL OXIDES 有权
    池窑拉丝工艺用于制造由金属氧化物METALS

    公开(公告)号：EP1034311A4

    公开(公告)日：2003-06-25

    申请号：EP98943588

    申请日：1998-09-23

    申请人： TECH RESOURCES PTY LTD

    发明人： DRY RODNEY JAMES

    IPC分类号： C21B11/00 ,  C21B11/02 ,  C21B13/00 ,  C21B13/04 ,  C22B5/10

    CPC分类号： C22B5/10 ,  C21B13/0026 ,  Y02P10/136

    摘要： The HIsmelt process as disclosed in WO 96/31627 A1 (PCT/AU96/00197) consists of forming a molten bath of iron and slag, injecting metalliferous feed (oxides), solid carbonaceous material (coal and/or coke) and slag formers into the bath and smelting the metalliferous feed to metal. The process also consists of post-combusting the unoxidised reaction gases and transferring the generated heat to the bath to facilitate the smelting. In addition, a transition zone between the post-combustion zone and the quiescent metal zone is formed by injecting the charge together with a carrier gas into the bath, thus causing the metal and slag to be projected into the transition zone. The present application constitutes an improvement over the afore-mentioned application, in that lances/tuyères are inserted deep into the melt to provide oxygen for post-combustion of the unoxidised reaction gases and, in addition, to project splashes, droplets and streams of molten metal into the transition zone, which, in turn, fall back into the bath, thus effectively transferring heat from the post-combustion zone to the molten bath. The level of dissolved carbon in the bath is maintained at >/= 3 %, preferably > 4 %. The FeO level in the slag is maintained at . Primary post-combustion is set at > 40 %, preferably > 50 % or > 60 %.