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WO2006042363A1 - Appareil d’injection de matière particulaire solide dans un récipient - Google Patents

Appareil d’injection de matière particulaire solide dans un récipient Download PDF

Info

Publication number
WO2006042363A1
WO2006042363A1 PCT/AU2005/001603 AU2005001603W WO2006042363A1 WO 2006042363 A1 WO2006042363 A1 WO 2006042363A1 AU 2005001603 W AU2005001603 W AU 2005001603W WO 2006042363 A1 WO2006042363 A1 WO 2006042363A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
lance
conveyor tube
end flange
tubes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/AU2005/001603
Other languages
English (en)
Inventor
Trevor Williams
Barry Alan Cady
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technological Resources Pty Ltd
Original Assignee
Technological Resources Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2004906033A external-priority patent/AU2004906033A0/en
Application filed by Technological Resources Pty Ltd filed Critical Technological Resources Pty Ltd
Publication of WO2006042363A1 publication Critical patent/WO2006042363A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/462—Means for handling, e.g. adjusting, changing, coupling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C2005/4626—Means for cooling, e.g. by gases, fluids or liquids
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/567—Manufacture of steel by other methods operating in a continuous way

Definitions

  • the present invention relates to metallurgical lances for injecting solid particulate materials into vessels.
  • Apparatus of this kind may be used for injecting metallurgical feed material into the molten bath of a smelting vessel for producing molten metal, for example by a direct smelting process.
  • a known direct smelting process which relies on a molten metal layer as a reaction medium, and is generally referred to as the Hismelt process, is described in International application PCT/AU/96/00197 (WO 96/31627) in the name of the applicant.
  • the Hismelt process as described in the International application comprises:
  • a metalliferous feed material typically metal oxides
  • melting is herein understood to mean thermal processing wherein chemical reactions that reduce metal oxides take place to produce liquid metal.
  • the Hismelt process also comprises post- combusting reaction gases, such as CO and H 2 , released from the bath in the space above the bath with oxygen- containing gas and transferring the heat generated by the post-combustion to the bath to contribute to the thermal energy required to smelt the metalliferous feed materials.
  • post- combusting reaction gases such as CO and H 2
  • the Hismelt process also comprises forming a transition zone above the nominal quiescent surface of the bath in which there is a favourable mass of ascending and thereafter descending droplets or splashes or streams of molten metal and/ir slag which provide an effective medium to transfer to the bath the thermal energy generated by post-combusting reaction gases above the bath.
  • the metalliferous feed material and solid carbonaceous material is injected into the metal layer through a number of lances/tuyeres which are inclined to the vertical so as to extend downwardly and inwardly through the side wall of the smelting vessel and into the lower region of the vessel so as to deliver the solid material into the metal layer in the bottom of the vessel.
  • the lances must withstand operating temperatures of the order of 1400 0 C within the smelting vessel.
  • the lances must accordingly has an internal forced cooling system to operate successfully in this harsh environment and must be capable of withstanding substantial local temperature variations.
  • US Patent 6,398,842 discloses one form of lance which is able to operate effectively under these conditions.
  • the solid particulate material is passed through a central core tube which is fitted closely within an outer annular cooling jacket, the forward end of the core tube extending through and beyond the forward end of the cooling jacket into the metallurgical vessel. It has been found in the operation of such lances that the injection of hot ore presents particular difficulties and in particular, the core tube is prone to very rapid wear.
  • the present invention enables the provision of a core tube made from wear resistant tube components which will be replaceable when the plant is shut down for a reline or other maintenance and which can therefore be supplied as consumable items.
  • a metallurgical lance to extend into a vessel for injecting solid particulate material into molten material held within the vessel, comprising a central conveyor tube through which to pass the solid particulate material and a lance housing surrounding the central core tube throughout a substantial part of its length and provided with internal water flow passages for flow of cooling water therethrough, wherein the conveyor tube comprises a series of wear resistant tubes disposed end to end , joining sleeves fitted externally about ends of adjacent tubes and connected to them to join the adjacent tubes together, and a series of collars spaced along the tube and each encircling the tube to serve as spacers to centre the tube within the lance housing.
  • wear resistant means that the tubes are made of a metal having a Brunell hardness number of 200 or above. It has been found that the tubes must have a hardness of this magnitude to provide adequate service when conveying hot ore. Tubes of this hardness may be cast from high chrome white iron.
  • the invention further provides a solids conveyor tube for installation within a housing of a hot ore injection lance comprising a series of wear resistant tubes disposed end to end ; joining sleeves fitted externally about ends of adjacent segments and connected to those tube ends to join the adjacent tubes together; and a series of collars spaced along the tube and each encircling the tube for, in use, centering the tube within the lance housing.
  • Figure 1 is a vertical cross section through a metallurgical vessel incorporating solids injection lances constructed in accordance with the invention
  • Figure 2 is a longitudinal cross-section through one of the solids injection lances for injecting hot ore into the vessel;
  • Figure 3 is a cross-section through a forward part of the lance shown in Figure 2;
  • Figure 4 is a longitudinal cross-section through a rear part of the lance shown in Figure 2;
  • Figure 5 is a perspective view of a solids conveyor tube of the lance shown in Figure 2;
  • Figure 6 is a cross-section through a rear part of the conveyor tube shown in Figure 5;
  • FIGS 7 and 8 provide further details of the rear part of the conveyor tube.
  • FIG. 1 illustrates a direct smelting vessel suitable for operation by the Hismelt process as described in International Patent Application PCT/AU96/00197.
  • the metallurgical vessel is denoted generally as 11 and has a hearth that includes a base 12 and sides 13 formed from refractory bricks; side walls 14 which form a generally cylindrical barrel extending upwardly from the sides 13 of the hearth and which includes an upper barrel section 15 ' and a lower barrel section 16; a roof 17; an outlet 18 for off-gases; a forehearth 19 for discharging molten metal continuously; and a tap-hole 21 for discharging molten slag.
  • the vessel contains a molten bath of iron and slag which includes a layer 22 of molten metal and a layer 23 of molten slag on the metal layer 22.
  • the arrow marked by the numeral 24 indicates the position of the nominal quiescent surface of the metal layer 22 and the arrow marked by the numeral .25 indicates the position of the nominal quiescent surface of the slag layer 23.
  • the term "quiescent surface” is understood to mean the surface when there is no injection of gas and solids into the vessel.
  • the vessel is fitted with a downwardly extending hot air injection lance 26 for delivering a hot air blast into an upper region of the vessel and a series of solids injection lances 27 extending downwardly and inwardly through the side walls 14 and into the slag layer 23 for injecting iron ore, solid carbonaceous material, and fluxes entrained in an oxygen deficient carrier gas into the metal layer 22.
  • the position of the lances 27 is selected so that their outlet ends 28 are above the surface of the metal layer 22 during operation of the process. This position of the lances reduces the risk of damage through contact with molten metal and also makes it possible to cool the lances by forced internal water cooling without significant risk of water coming into contact with the molten metal in the vessel.
  • Lances 27 may be of two kinds, a first of which is employed to inject hot ore material and the other of which is employed to inject carbonaceous material such as coal. There may for example be eight solids injection lances 27 spaced circumferentially around the vessel and consisting of a series of four hot ore injection lances and four coal injection lances spaced between the hot ore injection lances. All of the lances may fit within outer housings of a common conveyor but the two kinds of lance have differing interior construction tubes because of the vastly different temperature of the hot ore and the coal being injected.
  • lance 27a comprises a central solids conveyor tube 31 through which to deliver the hot ore and a lance housing 30 including an annular cooling jacket 32 surrounding the conveyor tube 31 throughout a substantial part of its length.
  • Annular cooling jacket 32 comprises a long hollow annular structure 41 comprised of outer and inner tubes 42, 43 interconnected by a front end connector piece 44 and an elongate tubular structure 45 which is disposed within the hollow annular structure 41 so as to divide the interior of structure 41 into an inner elongate annular water flow passage 46 and an outer elongate annular water flow passage 47.
  • Elongate tubular structure 45 is formed by a long carbon steel tube 48 welded to a machined carbon steel forward end piece 49 which fits within the forward end connector 44 of the hollow tubular structure 41 to form an annular end flow passage 51 which interconnects the forward ends of the inner and outer water flow passages 46, 47.
  • annular cooling jacket 32 is provided with a water inlet 52 through which a flow of cooling water can be directed into the inner annular water flow passage 46 and a water outlet 53 from which water is extracted from the outer annular passage 47 at the rear end of the lance. Accordingly in use of the lance cooling water flows forwardly down the lance through the inner annular water flow passage 46 then outwardly and back around the forward annular end passage 51 into the outer annular passage 47 through which it flows backwardly along the lance and out through outlet 53. This ensures that the coolest water is in heat transfer relationship with the incoming solids material and enables effective cooling of both the solids material being injected through the central core of the lance as well as effective cooling on the forward end and outer surfaces of the lance.
  • the outer surfaces of the tube 42 are machined with a regular pattern of rectangular projecting bosses each having an undercut or dove tail cross section so that the bosses are of outwardly diverging formation and serve as keying formations for solidification of slag on the outer surfaces of the lance. Solidification of slag onto the lance assists in minimising the temperature in the metal components of the lance. It has been found in use that slag freezing on the forward or tip end of the lance serves as a base for formation of an extended pipe of solid material serving as an extension of the lance which further protects exposure of the metal components of the lance to the severe operating conditions within the vessel.
  • the lance is mounted in the wall of the vessel 11 via a mounting structure 61 comprising a tubular part 60 extended about the cooling jacket and having a double walled construction so as to enclose an annular space 70 between these walls.
  • the tubular part 60 fits within a tubular lance mounting bracket 62 welded to the shell of vessel 11 so as to project upwardly and outwardly from the vessel and provided at its upper end with an end flange 63.
  • Lance mounting structure 61 is connected to the rear end of the outer tube 42 of annular cooling jacket 32 via an annular ring 64 and it also includes an annular mounting flange 65 which can be clamped to the flange 63 at the end of mounting tube 62 via clamping bolts 66.
  • a split spacer ring 67 is fitted between the flanges 63, 65 to hold them apart when the clamping bolts 66 are tightened.
  • the arrangement is such that the forward part of the outer sleeve 60 of structure 61 extend through to the inside of the vessel wall.
  • the tubular part 60 of mounting structure 61 is water cooled, cooling water being supplied to the interior space 70 through a water inlet 68 and return through a water outlet 69 at the rear end of the mounting sleeve.
  • the interior space 70 may be partitioned to provide an extended cooling water flow passage within it.
  • a tubular housing 71 extending rearwardly from the mounting ring 64 of mounting structure 61 houses the rear end of the intermediate tube 48 of jacket 32 and the rear end of the conveyor tube 31 of the lance.
  • Housing 71 carries the cooling water inlet 52 and outlet 52 for the passage of cooling water to and from the lance cooling jacket 32.
  • a flexible annular connecting structure 81 connects the rear end of the intermediate tube 48 of the water jacket with the housing tube 71 so as to separate the inward and outward water flow passages within the housing and to also permit relative longitudinal movement between the inner and outer tubes and the intermediate tube of the water jacket due to differential thermal expansion and contraction in the components of the lance.
  • tubular housing 71 provides a mounting for the rear end of the inner tube 43 of the annular cooling jacket.
  • Conveyor tube 31 is comprised of a series of wear resistant tubes 81 disposed end to end and joined together by joining sleeves 82 fitted externally about ends of adjacent tubes and stitch welded to them to connect the adjacent tubes together.
  • Tubes 81 are cast from metal having a Brunell hardness of 200 or more, for example a high chrome white iron.
  • Tube 31 is centered within the annular cooling jacket 32 of the lance housing by a series of spacer collars 83 projecting outwardly from the conveyor tube at longitudinally spaced locations along that tube to engage the inner periphery of the inner tube of the annular cooling jacket.
  • An annular gas flow passage 84 is thus formed between the central core tube and the annular cooling jacket.
  • a purge gas inlet 85 is provided at the rear end of the lance to allow a purge gas such as nitrogen to be admitted into the gas flow passage 84 and to flow forwardly through the lance between the core tube and the annular cooling jacket to exit the lance at the forward end of the cooling jacket.
  • One of the tube joining sleeves 82 at the front end of conveyor tube 31 is formed with a raised projection 86 in the region of the forward end of the cooling jacket to define an outlet nozzle 87 at the forward end of gas flow passage 84.
  • Projection 86 is sized so as to leave an annular gap between that projection and the inner periphery of the cooling jacket 32, gap 88 constituting a controlled exit opening for the nozzle 87.
  • the spacer collars 84 are formed so as to leave ⁇ ircumferentially spaced gaps between their outer peripheries and the inner periphery of the cooling jacket to allow for free flow of purge gas through the annular purge gas flow passage 83. More particularly, each collar 83 has six circumferentially spaced lobes leaving six low regions between the lobes creating the gaps for free flow of purge gas. The flow of purge gas is maintained to ensure that slag can not penetrate the forward end of the nozzle between the core tube and the outer water jacket. If slag were to penetrate the lance in this region it would immediately freeze because of the water cooled outer jacket and the cold purge gas.
  • the rear end of conveyor tube 31 is provided with an outwardly projecting flange 92 by which it is mounted to the rear end of the lance housing tube 71. More specifically, the flange 92 is sandwiched between the water cooled end flange of the lance housing and the flange on the end of the ore injection system which may also be water cooled. Flange 92 is shrink fitted onto a sleeve 93 stitch welded to the rear end tube 81 of the central conveyor tube 31. It is formed with an internal circumferential water flow passage 94 through which cooling water can be circulated from inlet and outlet flow connectors 95, 96.
  • the joining sleeves 82 and spacer collars 83 are all interconnected by sets of connector straps 97 to form a cage structure denoted generally as 98 which surrounds the cast tubes 81.
  • This cage structure 98 is connected to the end flange 92 of the conveyor tube 31 through a set of three end connector straps 99 and the sleeve 93, the three end connector straps 99 being circumferentially spaced around the end tube and welded to the rear end spacer collar 83 and the sleeve 93.
  • Each set of connector straps 97 consists of three straps spaced circumferentially around the tube 31 with the straps of adjacent sets being circumferentially offset relative to one another.
  • Some of - li ⁇ the sets of connector straps connect directly between adjacent spacer collars whereas others connect between spacer collars and adjacent tube jointing sleeves 82.
  • the connector straps are positioned so as to connect with the respective collars 83 at the low regions of the collars between the lobes.
  • the resulting cage structure 98 formed by the interconnected joining sleeves 82, spacer collars 83 and connector straps 97, being attached to the water cooled flange through the end straps 99, can serve as a load bearing structure that will contain the hard cast metal tubes 81 in the event of a tensile failure of one or more of the tubes either during installation or during operation of the lance.
  • the cage structure also results in a conveyor tube construction which enables the cast tubes 81 to be replaced readily during any plant shut down for a vessel reline or for routine maintenance and the tubes can be supplied as consumable replacement components.
  • the coal injection lances may have outer housings of the same construction as the hot ore injection lances. However, the service requirements for injection of the coal are less severe than for injection of hot ore and those lances may have central core tubes of a different construction not employing the present invention, for example a single continuous tube fitted with a ceramic lining.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

Lance métallurgique (27a) servant à injecter une matière particulaire solide dans un récipient. L’appareil ci-décrit se compose d’un tube convoyeur central (31) monté à l’intérieur d’un logement de lance (30) qui comporte une chemise annulaire de refroidissement (32) entourant le tube convoyeur (31). Le tube convoyeur (31) comporte une série de tubes en métal coulé résistant à l’usure (81) disposés bout à bout et reliés ensemble par des manchons de jointure (82) installés autour des extrémités des tubes adjacents. Le tube (31) possède une bride d’extrémité arrière faisant saillie vers l’extérieur (92) par laquelle il est relié au logement de lance (30). Le tube (31) est centré à l’intérieur de la chemise d’eau annulaire (32) par une série de bagues entretoise (83) faisant saillie vers l’extérieur du tube à des emplacements espacés longitudinalement pour s’engager avec la périphérie interne de la chemise (32). Les manchons de jointure (82) et les bagues entretoises (83) sont interconnectés par des ensembles de sangles de liaison espacés sur la circonférence (97) de façon à former une structure de cage (98) entourant les tubes moulés (81). La structure de cage (98) est reliée à la bride d’extrémité (92) au moyen d’un ensemble de sangles de liaison d’extrémité (99). La structure de cage (98) peut jouer le rôle de structure porteuse qui contiendra les tubes en métal moulé (81) en cas de rupture par surcharge d’un ou plusieurs de ces tubes.
PCT/AU2005/001603 2004-10-18 2005-10-17 Appareil d’injection de matière particulaire solide dans un récipient Ceased WO2006042363A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AU2004906032 2004-10-18
AU2004906033 2004-10-18
AU2004906033A AU2004906033A0 (en) 2004-10-18 Apparatus for injecting solid particulate material into a vessel
AU2004906032A AU2004906032A0 (en) 2004-10-18 Apparatus for injecting solid particulate material into a vessel
AU2004907375 2004-12-30
AU2004907375A AU2004907375A0 (en) 2004-12-30 Solids injection lance

Publications (1)

Publication Number Publication Date
WO2006042363A1 true WO2006042363A1 (fr) 2006-04-27

Family

ID=36202611

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/AU2005/001592 Ceased WO2006105578A1 (fr) 2004-10-18 2005-10-14 Appareil d'injection de matiere particulaire solide dans un recipient
PCT/AU2005/001603 Ceased WO2006042363A1 (fr) 2004-10-18 2005-10-17 Appareil d’injection de matière particulaire solide dans un récipient

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/AU2005/001592 Ceased WO2006105578A1 (fr) 2004-10-18 2005-10-14 Appareil d'injection de matiere particulaire solide dans un recipient

Country Status (3)

Country Link
AR (2) AR051224A1 (fr)
TW (2) TW200617180A (fr)
WO (2) WO2006105578A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1935994A2 (fr) 2006-12-15 2008-06-25 Technological Resources Pty. Ltd. Appareil d'injection d'une matière dans une cuve
EP1944381A2 (fr) 2006-12-15 2008-07-16 Technological Resources Pty. Ltd. Appareil d'injection d'un gaz dans une cuve
WO2010051096A1 (fr) * 2008-10-28 2010-05-06 General Electric Company Chemise de refroidissement d'un injecteur d'alimentation
WO2013080110A1 (fr) * 2011-11-30 2013-06-06 Outotec Oyj Lances refroidies par un fluide pour injection immergée par le haut
US8613790B2 (en) 2007-06-19 2013-12-24 Technological Resources Pty Limited Lance for injecting solid material into a vessel
US9528766B2 (en) 2011-06-30 2016-12-27 Outotec Oyj Top submerged injecting lances
US9771627B2 (en) 2011-09-02 2017-09-26 Outotec Oyj Lances for top submerged injection

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2994708A4 (fr) 2013-05-06 2016-12-21 Tech Resources Pty Ltd Lance d'injection de matières solides
BR112015028423B1 (pt) * 2013-05-16 2020-03-10 Tata Steel Limited Método para injetar um material de alimentação sólido através de uma lança de injeção de sólidos, lança de injeção de sólidos, aparelho para suprir um material de alimentação sólido para uma lança de injeção de sólidos e usina de fundição direta
DE102013220228A1 (de) 2013-10-08 2015-04-09 Sms Siemag Ag Injektorvorrichtung zum Aufblasen oder Einblasen von sauerstoffreichen Gasen in einem metallurgischen Aggregat oder Schmelzgefäß und Elektrolichtbogenofen

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GB2021242A (en) * 1977-12-10 1979-11-28 Duport Steels Ltd Blowing Lance for Solid Materials
EP0062217B1 (fr) * 1981-04-02 1986-05-14 Mono Construction Limited Lance métallurgique
US6156261A (en) * 1997-02-12 2000-12-05 Mannesmann Ag Method and device for positioning the mouth of a consumable lance
WO2001092586A1 (fr) * 2000-05-30 2001-12-06 Technological Resources Pty Ltd Appareil permettant d'injecter des matieres particulaires solides dans une cuve
WO2005040706A1 (fr) * 2003-10-21 2005-05-06 Outokumpu Technology Oy Segment de tuyau pour ligne de transfert permettant le transport d'une matiere particulaire chaude

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DE2855903A1 (de) * 1978-12-23 1980-07-10 Krupp Gmbh Blaslanze zum einbringen von stoffen in schmelzbaeder
AUPO095996A0 (en) * 1996-07-12 1996-08-01 Technological Resources Pty Limited A top injection lance
DE19755876C2 (de) * 1997-12-04 2000-02-24 Mannesmann Ag Blaslanze zum Behandeln von metallischen Schmelzen und Verfahren zum Einblasen von Gasen
EP0947587A1 (fr) * 1998-03-09 1999-10-06 Volkwin Köster Lance pour injection de gaz et procédé pour son refroidissement
AUPQ532800A0 (en) * 2000-01-28 2000-02-17 Technological Resources Pty Limited Apparatus for injecting solid particulate material into a vessel
IT1318121B1 (it) * 2000-07-04 2003-07-23 Elti Srl Lancia di iniezione, particolarmente per l'iniezione di sostanze inpolvere o in particolato, all'interno di forni elettrici per la
GB0209365D0 (en) * 2002-04-24 2002-06-05 Boc Group Plc Injection of solids into liquids
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2021242A (en) * 1977-12-10 1979-11-28 Duport Steels Ltd Blowing Lance for Solid Materials
EP0062217B1 (fr) * 1981-04-02 1986-05-14 Mono Construction Limited Lance métallurgique
US6156261A (en) * 1997-02-12 2000-12-05 Mannesmann Ag Method and device for positioning the mouth of a consumable lance
WO2001092586A1 (fr) * 2000-05-30 2001-12-06 Technological Resources Pty Ltd Appareil permettant d'injecter des matieres particulaires solides dans une cuve
WO2005040706A1 (fr) * 2003-10-21 2005-05-06 Outokumpu Technology Oy Segment de tuyau pour ligne de transfert permettant le transport d'une matiere particulaire chaude

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8454888B2 (en) 2006-12-15 2013-06-04 Technological Resources Pty. Limited Apparatus for injecting gas into a vessel
EP1944381A2 (fr) 2006-12-15 2008-07-16 Technological Resources Pty. Ltd. Appareil d'injection d'un gaz dans une cuve
EP1935994A2 (fr) 2006-12-15 2008-06-25 Technological Resources Pty. Ltd. Appareil d'injection d'une matière dans une cuve
US8012409B2 (en) 2006-12-15 2011-09-06 Technological Resources Pty. Limited Apparatus for injecting gas into a vessel
US8613790B2 (en) 2007-06-19 2013-12-24 Technological Resources Pty Limited Lance for injecting solid material into a vessel
WO2010051096A1 (fr) * 2008-10-28 2010-05-06 General Electric Company Chemise de refroidissement d'un injecteur d'alimentation
US9528766B2 (en) 2011-06-30 2016-12-27 Outotec Oyj Top submerged injecting lances
US9771627B2 (en) 2011-09-02 2017-09-26 Outotec Oyj Lances for top submerged injection
WO2013080110A1 (fr) * 2011-11-30 2013-06-06 Outotec Oyj Lances refroidies par un fluide pour injection immergée par le haut
CN103958994A (zh) * 2011-11-30 2014-07-30 奥图泰有限公司 用于顶部浸没喷射的流体冷却喷枪
AU2012323996B2 (en) * 2011-11-30 2015-01-15 Metso Metals Oy Fluid cooled lances for top submerged injection
CN103958994B (zh) * 2011-11-30 2016-05-11 奥图泰有限公司 用于顶部浸没喷射的流体冷却喷枪
EA025696B1 (ru) * 2011-11-30 2017-01-30 Ототек Оюй Охлаждаемая текучей средой верхняя погружная фурма
US9829250B2 (en) 2011-11-30 2017-11-28 Outotec Oyj Fluid cooled lances for top submerged injection

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TW200622000A (en) 2006-07-01
TW200617180A (en) 2006-06-01
AR051223A1 (es) 2006-12-27
WO2006105578A1 (fr) 2006-10-12
AR051224A1 (es) 2006-12-27

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