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公开(公告)号：NZ524003A
公开(公告)日：2005-03-24
申请号：NZ52400302
申请日：2002-07-08
Applicant: TECH RESOURCES PTY LTD
Inventor： DUNNE MARTIN JOSEPH , HARDIE GREGORY JOHN
Abstract: A lance for injecting a pre-heated oxygen-containing gas into a vessel containing a bath of molten material is disclosed. The lance (26) includes an elongate gas flow duct (31) from which to discharge gas from the duct. The duct includes (i) inner and outer concentric carbon steel tubes (37, 39) which provide major structural support for the duct, (ii) cooling water supply and return passage means (43, 44) extending through the duct wall from the rear end to the forward end of the duct for supply and return of cooling water to the forward end of the duct, and (iii) a mechanical means in the form of lands (136) on the exterior surface of the duct adapted to hold a layer of frozen slag on the duct. The lance also includes a gas inlet (32) for introducing hot gas into the rear end of the duct. The lance also includes a tip means (36) joined to the concentric tubes at the forward end of the duct. The lance also includes a protective lining formed from a refractory or other material that is capable of protecting the duct from exposure to gas flow at 800-1400 °C through the duct. The lining is a non-metallic material with heat insulating properties when compared to the steel tubes. The lance also includes a swirl means (34) located in the duct for imparting swirl to gas flow through the forward end of the duct.
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公开(公告)号：CZ2003387A3
公开(公告)日：2003-11-12
申请号：CZ2003387
申请日：2002-07-08
Applicant: TECH RESOURCES PTY LTD
Inventor： DUNNE MARTIN JOSEPH , HARDIE GREGORY JOHN
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.
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公开(公告)号：GB2360082A
公开(公告)日：2001-09-12
申请号：GB0101484
申请日：2001-01-19
Applicant: TECH RESOURCES PTY LTD
Inventor： DUNNE MARTIN JOSEPH
IPC: C22B9/10 , C21B11/08 , C21B13/10 , C21C5/46 , C21C5/52 , C21C5/56 , C21C7/00 , C22B5/10 , F27B3/00 , F27B3/02 , F27B3/18 , F27B3/22 , F27D3/00 , F27D3/15 , F27D3/16 , F27D3/18 , F27D99/00
Abstract: A metallurgical lance (27) for injecting solid particulate material into a smelting vessel comprising a control core tube (31) through which to deliver the solids material and an annular cooling jacket (32) surrounding the control 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 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). The tubular structure has a forward end piece (49) which fits within front end connector (44) of structure (41) to form an annular end flow passage which interconnects the forward ends of water flow passage (46, 47). Cooling water flows forwardly down the lanes through inner passage 46 then outwardly back around the forward annular end passage into the outer passage 47 through which it flows backward along the lanes to an outlet. The effective cross-sectional area for water flow through the end passage is less than the cross-sectional flow area of both the inner and outer passages 46, 47 to produce a high value flow rate in the tip region of the cooling jacket.
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公开(公告)号：ZA200100629B
公开(公告)日：2001-08-08
申请号：ZA200100629
申请日：2001-01-23
Applicant: TECH RESOURCES PTY LTD
Inventor： GURR MATTHEW JOHN , DUNNE MARTIN JOSEPH
IPC: B22D41/02 , F27B1/16 , C21B13/02 , F27B1/21 , F27B1/24 , F27B3/12 , F27B3/14 , F27D1/12 , F27D1/16 , C12B , C22B
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 DEG C is disclosed. The vessel is of the type that has a floor (3) that is refractory lined, a side wall (5) that is at least partially refractory lined, and a top wall (7), and at least two access openings to the interior of the vessel. The relining method included 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.
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公开(公告)号：DE10103605A1
公开(公告)日：2001-08-02
申请号：DE10103605
申请日：2001-01-26
Applicant: TECH RESOURCES PTY LTD
Inventor： DUNNE MARTIN JOSEPH
IPC: C22B9/10 , C21B11/08 , C21B13/10 , C21C5/46 , C21C5/52 , C21C5/56 , C21C7/00 , C22B5/10 , F27B3/00 , F27B3/02 , F27B3/18 , F27B3/22 , F27D3/00 , F27D3/15 , F27D3/16 , F27D3/18 , F27D99/00
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.
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Patent Agency Ranking
公开(公告)号：AU1110601A
公开(公告)日：2001-08-02
申请号：AU1110601
申请日：2001-01-09
Applicant: TECH RESOURCES PTY LTD
Inventor： DUNNE MARTIN JOSEPH
IPC: C22B9/10 , C21B11/08 , C21B13/10 , C21C5/46 , C21C5/52 , C21C5/56 , C21C7/00 , C22B5/10 , F27B3/00 , F27B3/02 , F27B3/18 , F27B3/22 , F27D3/00 , F27D3/15 , F27D3/16 , F27D3/18 , F27D99/00
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.
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公开(公告)号：CZ300668B6
公开(公告)日：2009-07-15
申请号：CZ2003387
申请日：2002-07-08
Applicant: TECH RESOURCES PTY LTD
Inventor： DUNNE MARTIN JOSEPH , HARDIE GREGORY JOHN
Abstract: Predmetem rešení je dmyšna pro zavádení predehrátého plynu obsahujícího kyslík do metalurgické nádoby obsahující lázen roztaveného materiálu. Dmyšna (26) obsahuje protáhlé potrubní vedení (31) plynu, které obsahuje (i) vnitrní a vnejší soustredné trubky (37, 39) z uhlíkové oceli, které poskytují hlavní strukturní operu potrubního vedení, (ii) prívodní a vratné kanály chladicí vody (43, 44), rozprostírající se skrze stenu potrubního vedení od zadního konce k prednímu konci potrubního vedení pro zásobování a navracení chladicí vody do predního konce potrubního vedení, a (iii) mechanické prostredky v podobe útvaru (136) na vnejším povrchu potrubního vedení, prizpusobené k držení vrstvy ztuhlé strusky na potrubním vedení. Dmyšna také obsahuje vstup (32) plynu pro zavádení horkého plynu do zadního konce potrubního vedení. Dmyšna také obsahuje ochranné vyložení vytvorené ze žáruvzdorného nebo jiného materiálu, který je schopen ochranování potrubního vedení proti vystavení proudení plynu o teplote 800 až 1400 .degree.C. Vyložení je nekovový materiál s tepelne izolacními vlastnostmi, v porovnání s ocelovými trubkami. Dmyšna také zahrnuje víricí prostredky (34), umístené v potrubním vedení, pro udelování vírení proudu plynu skrze prední konec potrubního vedení.
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公开(公告)号：CA2332153C
公开(公告)日：2009-03-17
申请号：CA2332153
申请日：2001-01-24
Applicant: TECH RESOURCES PTY LTD
Inventor： DUNNE MARTIN JOSEPH , GURR MATTHEW JOHN
IPC: C21B13/02 , C21C5/44 , B22D41/02 , C21B13/00 , F27B1/16 , F27B1/21 , F27B1/24 , F27B3/12 , F27B3/14 , F27D1/12 , 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.degree.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.
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公开(公告)号：ES2269403T3
公开(公告)日：2007-04-01
申请号：ES01935815
申请日：2001-05-29
Applicant: TECH RESOURCES PTY LTD
Inventor： DUNNE MARTIN JOSEPH
Abstract: Lanza metalúrgica alargada (27) para ser desplegada en un recipiente (11) con el fin de inyectar un material sólido particulado en el material fundido mantenido en el interior del recipiente (11), lanza (27) que comprende: (a) un tubo de núcleo central (31), a través del cual pasa el material sólido particulado; (b) una camisa anular de refrigeración (32) que rodea el tubo de núcleo central (31) a lo largo de una parte substancial de su longitud, definiendo dicha camisa (32) un paso interior anular alargado (46) de flujo refrigerante dispuesto alrededor del tubo hueco (31), un paso exterior anular alargado para el refrigerante dispuesto alrededor del paso interior de flujo de refrigerante (47), y un paso anular (53) extremo de flujo que interconecta los pasos anulares interior y exterior de flujo de refrigerante (46, 47) en un extremo delantero de la camisa; (c) unos medios (52) de admisión de refrigerante, para la admisión de refrigerante en el paso anular interior de flujo de refrigerante(46) de la camisa (32) en una zona posterior extrema de la camisa (32); y (d) unos medios (56) de salida de refrigerante, para la salida de refrigerante del paso anular exterior de flujo de refrigerante (47) en la zona posterior extrema de la camisa (32), para proporcionar así un flujo de refrigerante hacia adelante a lo largo del paso interior anular de flujo del refrigerante (46) hasta el extremo delantero de la camisa (32) y a continuación a través del paso anular extremo de flujo (53) y hacia atrás a través del paso anular exterior de flujo del refrigerante.
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