公开(公告)号：US06673305B2

公开(公告)日：2004-01-06

申请号：US10119305

申请日：2002-04-10

Applicant: Martin Joseph Dunne ,  Gregory John Hardie

Inventor： Martin Joseph Dunne ,  Gregory John Hardie

IPC: C21C532

CPC classification number: C21C5/4606 ,  C21C5/56 ,  C22B9/05 ,  F27B3/20 ,  F27B3/22 ,  F27D3/16

Abstract: An injection lance (26) for injecting hot gas into a vessel includes an elongate gas flow duct (31) which receives hot gas from a gas inlet structure (32) and an elongate central tubular structure (33) which extends within gas flow duct (31) from its rear end to its forward end. Adjacent the forward end of duct (31), central structure (33) carries a series of flow directing vanes (34) for imparting swirl to the hot gas flow exiting the duct. The wall of duct (31) downstream from gas inlet (32) is internally water cooled by flow of water through annular passages (43,44). The cooling water also flows through the interior of a duct tip (36) at the forward end of duct (31). The front end of central structure (33) which carries the swirl vanes (34) is internally water cooled by cooling water supplied forwardly through a central water flow passage (52) from a water inlet (53) at the rear of the lance through to a nose (35) of the central structure. The cooling water returns back through the central structure via an annular water return passage (54) to a water outlet (55) at the rear end of the lance.

Abstract translation: 用于将热气体注入容器的注射枪（26）包括细长的气体流动管道（31），其从气体入口结构（32）和细长的中心管状结构（33）接收热气体，该细长的中心管状结构（33）在气体流动管道 31）从其后端到其前端。 在管道31的前端附近，中心结构（33）携带一系列导流叶片（34），用于向离开管道的热气流提供涡流。 气体入口（32）下游的管道（31）的内壁通过水流通过环形通道（43,44）而被内部水冷却。 冷却水也在管道（31）的前端处流过管道尖端（36）的内部。承载旋流叶片（34）的中心结构（33）的前端由供应的冷却水内部水冷却 向前穿过中心水流通道（52）从喷枪后部的进水口（53）通过中心结构的鼻部（35）。 冷却水通过环形回水通道（54）通过中心结构返回到喷枪后端的出水口（55）。

公开(公告)号：US06773659B2

公开(公告)日：2004-08-10

申请号：US10190595

申请日：2002-07-09

Applicant: Martin Joseph Dunne ,  Gregory John Hardie

Inventor： Martin Joseph Dunne ,  Gregory John Hardie

IPC: C21C532

CPC classification number: C21C5/4613

Abstract: A gas injection lance and an apparatus employing the lance for producing ferrous metal are provided. The lance has an elongated flow duct made of inner and outer concentric carbon steel tubes, a cooling water supply and return, and exterior surface which is designed to hold a frozen layer of slag on the duct, a gas inlet at a rear end of the duct, a tip joining the concentric tubes at the forward end of the duct, a non-metallic or refractory lining for the duct, and swirl-imparting member or members located in the duct for imparting swirl in the gas flow through the forward end of the duct.

Abstract translation: 提供了一种注射枪和使用用于生产黑色金属的喷枪的装置。 喷枪具有由内部和外部同心碳钢管，冷却水供应和返回构成的细长流动管道，以及外部表面，其设计成在管道上容纳冷冻层的炉渣，在后端的气体入口 管道，连接管道前端的同心管的末端，用于管道的非金属或耐火衬层，以及位于管道中的涡流施加构件或构件，用于在通过气体流的前端的气流中产生涡流 管道。

公开(公告)号：US06565798B2

公开(公告)日：2003-05-20

申请号：US09768791

申请日：2001-01-25

Applicant: Matthew John Gurr ,  Martin Joseph Dunne

Inventor： Matthew John Gurr ,  Martin Joseph Dunne

IPC: F27D116

CPC classification number: F27B3/12 ,  F27B3/14 ,  F27D1/16

Abstract: A method of relining a vessel that is used to carry out a direct smelting process that produces molten metal under conditions requiring molten bath temperatures of at least 1000° C. is disclosed. The vessel is of the type that has a floor that is refractory lined, a side wall that is at least partially refractory lined, and a top wall, and at least two access openings to the interior of the vessel. The relining method includes the steps of cooling down the vessel, gaining access to the interior of the vessel via the access openings, relining the vessel, and re-starting operation of the process in a period of time of 21 or less days.

Abstract translation: 公开了一种用于进行直接熔炼工艺的容器的方法，该方法在需要至少1000℃的熔融浴温度的条件下产生熔融金属。 容器是具有耐火材料衬里的地板，至少部分耐火材料衬里的侧壁和顶壁以及至少两个到容器内部的进入开口的类型。 修复方法包括以下步骤：冷却船只，通过进入开口进入船只内部，使船只更换，并在21天或更短的时间内重新启动过程操作。

公开(公告)号：US06440356B2

公开(公告)日：2002-08-27

申请号：US09761414

申请日：2001-01-16

Applicant: Martin Joseph Dunne

Inventor： Martin Joseph Dunne

IPC: C21C532

CPC classification number: C22B9/05 ,  C21B5/001 ,  C21B13/00 ,  C21C5/4606 ,  C21C5/56 ,  C22B5/10 ,  F27B3/22 ,  F27D3/16 ,  F27D9/00 ,  Y02P10/136

Abstract: Apparatus for injecting gas into a vessel comprises a lance 26 having a gas flow duct 31 extending longitudinally from a rear end to a forward end (36) from which to discharge gas from the duct. An elongate body 38 disposed within the forward end of the duct is fitted with flow directing vanes 39 to impart swirl to the discharging gas. The tip 44 is internally cooled by water supplied and returned through supply and return passages 52, 56. Cooling water is also passed through internal cooling passages 66, 75, 76, 87 within vanes 39 and central body 38 via water supply and return passage 60 within the duct.

Abstract translation: 用于将气体注入容器的装置包括喷枪26，其具有从后端纵向延伸到前端（36）的气体流动管道31，从该管道排出气体。 设置在管道前端的细长主体38装配有导流叶片39以使排出气体产生漩涡。 尖端44由供水的水内部冷却，并通过供给和返回通道52,56返回。冷却水还通过供水和返回通道60通过叶片39和中心体38内的内部冷却通道66,75,76,87 在管道内。

公开(公告)号：US06565800B2

公开(公告)日：2003-05-20

申请号：US09866481

申请日：2001-05-29

Applicant: Martin Joseph Dunne

Inventor： Martin Joseph Dunne

IPC: C21C532

CPC classification number: C21C5/4606 ,  F27D3/18 ,  F27D2003/168

Abstract: An elongate metallurgical lance (27) for injecting solid particulate material into molten material held within a vessel (11) is disclosed. The lance includes a central core tube (31) through which to pass solid particulate material, an annular cooling jacket (32) surrounding the central core tube throughout a substantial part of its length, a coolant inlet means (52), and a coolant outlet means (53). An outer wall of a forward end section of the jacket is formed from a first material which has high heat transfer properties and can withstand external temperatures above 1100° C. for prolonged periods when the jacket is cooled by coolant flow. An outer wall of a body section of the jacket is formed from a second material that maintains its structural properties when exposed to external temperatures above 1100° C. for prolonged periods when the jacket is cooled by coolant flow, whereby the outer wall acts as a structural member that contributes to supporting the lance at these temperatures. The outer wall of the forward end section and the outer wall of the body section are welded together.

公开(公告)号：US06398842B2

公开(公告)日：2002-06-04

申请号：US09761531

申请日：2001-01-16

Applicant: Martin Joseph Dunne

Inventor： Martin Joseph Dunne

IPC: C21C532

CPC classification number: F27D99/0003 ,  C21C5/4606 ,  C21C5/56 ,  C21C7/0037 ,  C22B5/10 ,  F27B3/00 ,  F27B3/02 ,  F27B3/18 ,  F27B3/22 ,  F27D3/0025 ,  F27D3/0026 ,  F27D3/0033 ,  F27D3/15 ,  F27D3/1518 ,  F27D3/18 ,  F27D2003/167 ,  F27D2003/169 ,  F27M2001/023 ,  F27M2003/13

Abstract: A metallurgical lance 27 for injecting solid particulate material into a smelting vessel comprising a central core tube 31 through which to deliver the solids material and an annular cooling jacket 32 surrounding the central core tube. Jacket 32 includes a long hollow annular structure 41 formed by outer and inner tubes 42, 43 interconnected by a front end connector 44. An elongate tubular structure 45 is disposed within the hollow annular structure 41 so to divide the interior of structure 41 into an inner annular water flow passage 46 and an outer annular water flow passage 47. Tubular structure 45 has a forward end piece 49 which fits within front end connector 44 of structure 41 to form an annular end flow passage 51 which interconnects the forward ends of water flow passage 46, 47. Cooling water flows forwardly down the lance through inner passage 46 then outwardly and back around the forward annular end passage 51 into the outer passage 47 through which it flows backwardly along the lance to an outlet 53. The effective cross-sectional area for water flow through end passage 51 is less than the cross-sectional flow area of both the inner and outer passages 46, 47 to produce a high water flow rate in the tip region of the cooling jacket.

Abstract translation: 用于将固体颗粒材料注入熔炼容器的冶金喷枪27，其包括中心芯管31，通过该中心芯管31输送固体材料和围绕中心芯管的环形冷却套32。 护套32包括由前端连接器44互连的外管42,43形成的长的中空环形结构41.细长管状结构45设置在中空环形结构41内，以将结构41的内部分成内 环形水流通道46和外环形水流通道47.管状结构45具有前端件49，其配合在结构41的前端连接器44内，以形成环形端流通道51，其将水流通道 然后，冷却水通过内部通道46沿着喷枪向下流动，然后向外并且绕着前部环形端部通道51返回到外部通道47中，沿着喷枪向后流动到出口53.有效的横截面积 对于通过端部通道51的水流量小于内部通道46和外部通道47的横截面积面积，以在尖端区域中产生高水流量 在冷却套上。