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    • 6. 发明申请
    • APPARATUS FOR INJECTING SOLID PARTICULATE MATERIAL INTO A VESSEL
    • 将固体颗粒物料注入船只的装置
    • WO2006042363A1
    • 2006-04-27
    • PCT/AU2005/001603
    • 2005-10-17
    • TECHNOLOGICAL RESOURCES PTY LIMITEDWILLIAMS, TrevorCADY, Barry, Alan
    • WILLIAMS, TrevorCADY, Barry, Alan
    • C21B13/00C21C5/00F27D3/18
    • F27D3/18C21C5/4606C21C5/462C21C5/567C21C2005/4626
    • A metallurgical lance (27a) for injecting solid particulate material into a vessel comprises a central conveyor tube (31) mounted within a lance housing (30) that includes an annular cooling jacket (32) surrounding the conveyor tube (31). Conveyor tube (31) comprises a series of wear resistant cast metal tubes (81) disposed end to end and joined together by joining sleeves (82) fitted about ends of adjacent tubes. Tube (31) has an outwardly projecting rear end flange (92) by which it is connected to lance housing (30) and it is centred within annular water jacket (32) by a series of spacer collars (83) projecting outwardly from the tube at longitudinally spaced locations to engage the inner periphery of the jacket (32). The joining sleeves (82) and spacer collars (83) are interconnected by sets of circumferentially spaced connector straps (97) to form a cage structure (98) that surrounds the cast tubes (81). Cage structure (98) is connected to end flange (92) through a set of end connector straps (99) and can serve as a load bearing structure that will contain the cast metal tubes (81) in the event of tensile failure of one or more of those tubes.
    • 用于将固体颗粒材料注入容器的冶金喷枪(27a)包括安装在喷枪壳体(30)内的中心输送管(31),其包括围绕输送管(31)的环形冷却套(32)。 输送管(31)包括一系列耐磨的铸造金属管(81),其通过连接围绕相邻管的端部的套筒(82)并排设置并连接在一起。 管(31)具有向外突出的后端凸缘(92),其通过该后端凸缘(92)连接到喷枪壳体(30),并且通过一系列从管子向外突出的间隔套环(83)在环形水套(32)的中心位置 在纵向间隔开的位置以与夹套(32)的内周接合。 连接套筒(82)和间隔圈(83)通过一组圆周间隔开的连接带(97)相互连接,形成围绕铸管(81)的笼结构(98)。 笼结构(98)通过一组端部连接器带(99)连接到端部凸缘(92),并且可以用作承载结构,其将在一个或多个连接器带(99)的拉伸失效的情况下容纳铸造金属管(81) 更多的那些管。
    • 7. 发明申请
    • METHOD FOR PRODUCING STAINLESS STEELS, IN PARTICULAR HIGH-GRADE STEELS CONTAINING CHROMIUM AND CHROMIUM-NICKEL
    • 法生产不锈钢,尤其是Chrome和CHROMNICKELHALTIGER钢
    • WO02033130A1
    • 2002-04-25
    • PCT/EP2001/011190
    • 2001-09-27
    • C21C7/00C21C5/00C21C5/52C21C7/068F27B3/04F27B3/22
    • C21C5/5264C21C5/005C21C5/5252C21C7/0685
    • The invention relates to a method for producing stainless steels, in particular steels containing chromium and chromium-nickel. The method is carried out in a melting device containing a metallurgical vessel, or in a melting device (1) containing at least two vessels (2, 3) for supplying a steel-casting installation, an electric arc furnace process (1) and an air-refining process taking place alternately in the two vessels (2, 3). To improve the efficiency of a method of this type, the aim of the invention is to carry out a reversible treatment of unreduced converter slag in the electric arc furnace mode. To achieve this, in the first treatment stage, the slag (19) with a high chromium content is melted together with the added charge, the slag is then reduced during the melting process with the silicon and carbon under favourable thermodynamic conditions of the arc, once the slag has reached a minimum temperature of 1,490 DEG C and the slag is subsequently removed. The air-refining process is then carried out, during which the carbon content is reduced to a value of less than 0.9 %. The metal slag (18) is tapped at a tapping temperature of between 1,620 and 1,720 DEG C, the unreduced slag (19) with a high chromium content from the air-refining process remaining in the treatment vessel.
    • 本发明涉及一种用于制造不锈钢,特别是铬和chromnickelhaltiger钢,在冶金容器具有熔化设备中或者在至少两个容器(2,3),其具有熔融装置(1),用于提供一个Stahlgiessanlage,在这种情况下,在这两个容器 (2,3)交替地,当操作电弧炉方法(1)和吹塑法(11)。 为了使这样的工艺经济的,是成为未还原的转炉渣在电弧炉操作的可逆的治疗。 为了这个目的,所述高铬渣(19)在与所添加电荷的第一处理一起步骤熔化,减少了在冶炼过程中与在所述圆弧的有利的热力学条件的硅和碳渣,熔融已经达到最小的1490℃的温度值后 有和渣去除。 其后,送风过程被执行,其中,所述熔体中的碳含量达到一个值<0.9%减少。 在1620自攻温度到1720℃,在熔融金属(18)被分接,其中,所述发泡过程的未还原的富铬渣(19)保持在所述处理容器。