公开(公告)号：US20090229416A1

公开(公告)日：2009-09-17

申请号：US11596500

申请日：2005-05-12

申请人： Andrew M. Cameron ,  Michael James Strelbisky ,  Andrew Peter Richardson ,  John Batham ,  Mark Alan Wilkinson

发明人： Andrew M. Cameron ,  Michael James Strelbisky ,  Andrew Peter Richardson ,  John Batham ,  Mark Alan Wilkinson

IPC分类号： C22B9/05 ,  C22B5/00 ,  C21B7/16

CPC分类号： C21C5/32 ,  C21C5/4606

摘要： A method of refining molten metal in a vessel by the reaction of oxygen with impurities in the molten metal comprises the steps of: a) ejecting at least one primary jet of oxygen from a lance positioned above the molten metal into the molten metal to react with impurities therein and to form a layer of molten slag; b) continuing to eject the primary jet of oxygen from the lance and thereby causing the primary bet of oxygen to pass through the slag layer into the molten metal; c) ejecting a plurality of secondary jets of oxygen from the lance, the secondary jet of oxygen travelling for a distance separately from the primary jet of oxygen; and d) entraining the secondary jets of oxygen into the primary jet of oxygen upstream of the entry of the primary jet of oxygen into the molten metal. A lance head for use in the method has at least one primary oxygen port and a plurality of secondary oxygen ports, the axis of the second oxygen port diverging in the direction of flow from the primary oxygen port at an angle of up to 45°. The method and lance head are particularly of use in the Basic Oxygen Steelmaking (BOS) process. If desired, a stirring gas such as argon may be mixed with the primary oxygen.

摘要翻译： 通过氧气与熔融金属中的杂质的反应来在容器中精炼熔融金属的方法包括以下步骤：a）从位于熔融金属上方的喷枪将至少一个主要的一次射流喷射到熔融金属中以与 并且形成一层熔渣; b）继续从喷枪喷出主喷射的氧气，从而使氧的初始注入通过熔渣层进入熔融金属; c）从所述喷枪喷射多个次要喷射的氧气，所述次要喷射的氧气与所述主喷射流分开运动一段距离; 以及d）将二次喷射的氧气引入氧气初级射流进入熔融金属的上游的主要喷射流中。 用于该方法的喷枪头具有至少一个主氧气端口和多个次级氧气端口，第二氧气端口的轴线以最多45°的角度从主氧气端口沿着流动方向发散。 方法和喷枪头特别适用于基本氧气炼钢（BOS）工艺。 如果需要，可以将诸如氩的搅拌气体与初级氧混合。

公开(公告)号：US07438848B2

公开(公告)日：2008-10-21

申请号：US10881489

申请日：2004-06-30

申请人： Michael James Strelbisky ,  Andrew Peter Richardson ,  Mark Alan Wilkinson

发明人： Michael James Strelbisky ,  Andrew Peter Richardson ,  Mark Alan Wilkinson

IPC分类号： C21C7/00

CPC分类号： C21C5/4606 ,  F27D3/16 ,  F27D2003/169

摘要： A metallurgical lance for introducing gas into a volume of molten material in a furnace includes a head having a bore extending therethrough, a mounting assembly at the head in the bore, and a nozzle detachably secured to the mounting assembly by a connection, the nozzle adapted to coact with a tool releasably engagable with the nozzle to insert and withdraw same from the lance head through the bore without dismantling the nozzle.

摘要翻译： 用于在炉中将气体引入一定体积的熔融材料的冶金喷枪包括具有延伸穿过其中的孔的头部，在孔中的头部处的安装组件和通过连接可拆卸地固定到安装组件的喷嘴， 与可释放地与喷嘴接合的工具共同作用，以便从喷枪头通过孔插入和取出，而不拆卸喷嘴。