US3889933A - Metallurgical lance - Google Patents

Metallurgical lance Download PDF

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Publication number
US3889933A
US3889933A US446688A US44668874A US3889933A US 3889933 A US3889933 A US 3889933A US 446688 A US446688 A US 446688A US 44668874 A US44668874 A US 44668874A US 3889933 A US3889933 A US 3889933A
Authority
US
United States
Prior art keywords
lance
oxygen
low pressure
natural gas
supply
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.)
Expired - Lifetime
Application number
US446688A
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English (en)
Inventor
Louis Harold Jaquay
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.)
Vale Canada Ltd
Davy McKee Corp
Original Assignee
Vale Canada 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
Application filed by Vale Canada Ltd filed Critical Vale Canada Ltd
Priority to US446688A priority Critical patent/US3889933A/en
Priority to CA218,860A priority patent/CA1042207A/fr
Priority to PH16811A priority patent/PH12273A/en
Priority to ZA00751239A priority patent/ZA751239B/xx
Priority to JP2494975A priority patent/JPS578852B2/ja
Priority to BE153881A priority patent/BE826144A/fr
Priority to AU78670/75A priority patent/AU489718B2/en
Priority to ZM25/75A priority patent/ZM2575A1/xx
Application granted granted Critical
Publication of US3889933A publication Critical patent/US3889933A/en
Assigned to DRAVO ENGINEERING COMPANIES, INC., A CORP. OF DE reassignment DRAVO ENGINEERING COMPANIES, INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DRAVO CORPORATION
Assigned to DAVY MCKEE CORPORATION, A DE CORP. reassignment DAVY MCKEE CORPORATION, A DE CORP. MERGER (SEE DOCUMENT FOR DETAILS). OCTOBER 04, 1988 - DELEWARE Assignors: DRAVO ENGINEERING COMPANIES, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Definitions

  • ABSTRACT A lancing system for introducing heat and process 0xygen into a pyrometallurgical furnace comprising a lance of nested pipes, a lance tip of special design on one end of the lance, means to introduce high pressure process oxygen, low pressure combustion oxygen, air and natural gas to the other end of the lance and gas control means to provide at least 10% of the oxygen needed for combustion as pure oxygen.
  • the present invention is concerned with a lancing system employed in pyrometallurgical operations and, more particularly, with a lancing system capable of both introducing a stream of high velocity oxygen into a metallurgical furnace and introducing a combustible mixture of oxidizer and fuel into a furnace and maintaining a flame with said mixture under both oxidizing and reducing conditions.
  • Lances (and tips therefor) for injecting oxygen into metallurgical furnaces are well known. Lances and tips therefor are also known which are capable of introducing into metallurgical furnaces combustible mixtures of fuel and oxidizer so to provide a flame in the furnace.
  • the present invention is concerned with a system which permits both functions to be carried on sequentially or simultaneously without the necessity of employing separate lances and which also permits the use of air for supplying up to about 90% of the oxygen needed for combustion of the fuel.
  • Another object of the present invention is to provide a lance tip having a high velocity oxygen port exiting axially with respect to the lance and having sets of ports supplying fuel and oxidizer positioned forward of the high velocity oxygen port at critical axial distances apart.
  • FIG. 1 depicts in longitudinal cross-section an advantageous embodiment of the lance tip useful in the laneing system of the present invention
  • FIG. 2 shows a front view of the lance tip of the present invention indicating at line II the plane of crosssection of FIG. 1;
  • FIG. 3 is a schematic representation of the total lancing system of the present invention.
  • the present invention is directed to a system for supplying heat and process oxygen to a pyrometallurgical operation which comprises essentially four components, i.e., a lance, supply means to feed gases to the lance, a special lance tip, and gas regulating means.
  • the lance comprises at least four and, advantageously, five nesting pipes spaced apart from one another.
  • the supply means are connected to one end of the lance to supply high pressure, e.g., about to about 50 psig oxygen to the centermost pipe; to supply low pressure, e.g., about 2 to about 10 psig oxygen to the space between the centermost pipe and the next outer pipe; to supply low pressure natural gas to the next outboard space between pipes; to supply low pressure air to the still next outward space between pipes and to supply and circulate cooling water in the outermost space between the nesting pipes.
  • low pressure oxygen and air can be premixed and passed through a single conduit in the lance.
  • the special tip is affixed to the other end of the lance and comprises a concave end wall enclosing the space carrying water.
  • a nozzle port At the depth of the concavity of the end wall is a nozzle port from which high pressure oxygen exits. Surrounding this nozzle port are sets of ports forward of the nozzle port through which low pressure (combustion) oxygen, natural gas and air exit. These sets of ports are spaced about 0.7 to 1.5 inch (in the axial direction) apart from the next set of ports.
  • the gas regulating means include conventional means to provide a proper combustible mixture of the oxidizers and natural gas with the further proviso that at least 10% of the oxygen needed for combustion be supplied by low pressure oxygen.
  • alance tip 10 comprises a plurality of coaxially nested, spaced apart pipe sections 11, l2, l3, l4 and 15 affixed to and as shown in FIG. 1, being unitary with end wall 16.
  • End wall 16 has the shape of the surface of a frustum of a right circular cone having an included angle of about 45 to about
  • the lower base of the cone is essentially a plane perpendicular to the axis of the tip and extending across the internal diameter of pipe section 15.
  • Innermost pipe section 11 is formed as a nozzle having converging section 17, throat area 18, diverging section 19 and mouth 20.
  • the upperbase of the cone, the surface of which comprises outer face 16 lies essentially on a plane perpendicular to the axis of the tip and passing across mouth 20 of the nozzle.
  • the series of ports 21, 22 and 23 are spaced apart form each other (on a center-to-center basis and in the axial direction) by a distance of about 0.75 to 1.5 inch.
  • Arcuate ports comprising series 21 open onto the space between pipe section 11 and pipe section 12.
  • the spaces between the pipe sections in the tip of the present invention are adapted to open onto, and be contiguous with, corresponding spaces in a lance as schematically depicted in FIG. 1 as 23.
  • Lance 24 comprises a plurality of nested pipes 25, 26, 27, 28 and 29.
  • the radially outermost pipe 29 of lance 24 connecting with pipc section 15 of the tip is adapted to contain anmd convey cooling water in a manner well known to those skilled in the art. Accordingly, as depicted in the drawing, there is no port through end wall 16 opening upon the space between pipe sections 14 and 15.
  • One advantage of the lance tip of the present invention is that recessed nozzle mouth 20 is protected from clogging by splashing metal, slag or the like which occurs in metallurgical operations.
  • the lance tip of the present invention has the capacity for conveying four gaseous fluids into a metallurgical furnace.
  • the gaseous fluid passing through pipe section 11 comprises high pressure oxygen which by virtue of the construction of the nozzle in the interior wall of pipe section 11 and the supply pressure exits from the tip at supersonic velocity.
  • Thishigh pressure (process) oxygen which exits in a direction essentially axial with respect to the lance can be used for various metallurgical purposes such as refining pig iron in various types of oxygen or oxygen-enriched furnacing operations, burning sulfur out of matte compositions and the like.
  • Gas streams exiting from the series of arcuate ports 21, 22 and 23 are caused to be thoroughly mixed by a combi nation of turbulent flow of gas in the lance (for example at a Reynolds number of greater than 10,000) and the axially spaced apart positions of the exit ports.
  • a combi nation of turbulent flow of gas in the lance for example at a Reynolds number of greater than 10,000
  • the space between pipe sections 12 and 13 carries a gaseous fuel such as natural gas
  • the space between pipe sections 13 and 14 carries air allflowing turbulently
  • this efficient mixing will permit the maintenance ofa flame directly in front of the tip provided that at least 10% of the combustion oxygen is in the form of pure oxygen, (i.e., the oxidizer is air enriched at least to about 23% by volume of oxygen).
  • the respective areas of the series of ports 21, 22 and 23 are determined by the character of fuel and oxidizer used.
  • the port areas as depicted in the drawing are operative for a natural gas fuel with the oxidizer comprising about 10% (of that theoretically required) low pressure oxygen with the balance being low pressure (e.g., about 2PSlG (pounds per square inch gage) air.
  • low pressure e.g., about 2PSlG (pounds per square inch gage) air.
  • Those skilled in the art will appreciate that various kinds of fuel and oxidizer will require various port designs.
  • oxygen can be premixed with air to provide at least the necessary 10% enrichment and the lance and tip modified to provide only a single passage for combustion oxidizer.
  • the lance tip used in the system of the present invention has been depicted in the drawing as comprising a set of coaxially nested pipe sections of substantially equal length, those skilled in the art will appreciate that the pipe sections can be of any desired length provided that the end of lance 24 is configured appropriately. Furthermore, the pipe sections can be nested in a non-coaxial fashion, especially if it is desired to modify, for example, by fanning out, the flame resulting from combustion of the gas mixture emerging from arg I cuate ports 21, 22 and 23. With a non-coaxial arrangement of the pipe sections, end wall 16 has a configuration of the surface of a truncated cone which may or may not be circular depending upon the cross-sectional shape of the pipe sections.
  • concave end wall 16 can have the shape of any curved surfaces such as, for example, the surface of a hemisphere, the surface of a hemi-elipsoid or the like with mouth 20 of the nozzle opening through end wall 16 at or near the point of greatest concavity.
  • the lance tip used in the system of the present invention can be made from any metal having high heat conductivity.
  • Embodiments of the lance tip actually constructed and used as described herein have been made of essentially pure copper.
  • EXAMPLE A lance having a tip as depicted in the drawing was employed to introduce heat and process oxygen into a top blown rotary converter containing a copper matte. Natural gas was caused to flow turbulently through the space between pipes 26 and 2 7 and out arcuate ports 22 at a rate of about 1,000 sft per minute. When only air flowing turbulently at a rate of about 9,600 sft per minute was supplied through the space between pipes 27 and 28 as an oxidizer, a stable flame was not obtained on ignition. By introducing at least 10% of the oxygen needed for combustion as relatively pure oxygen through the space between pipes 25 and 26 at a stable flame structure was obtained which released about l l0 BTUs per minute to the top blown rotary converter.
  • process oxygen was introduced into the rotary converter at supersonic speed through the central nozzle.
  • process oxygen was introduced into the rotary converter at supersonic speed through the central nozzle.
  • FIG. 3 of the drawing The system employed in the example is schematically depicted in FIG. 3 of the drawing wherein lance 24 is shown to be inserted in furnace 30 through opening 31. Opening 31 is covered by hood 32 which connects to exhaust line 33. Lance 24 is fed through appropriately valved lines from source of high pressure oxygen 34, source of low pressure oxygen 35, source of natural gas 36, and source of low pressure air 37. Cooling water is fed from source 38 and exits from lance 24 through cooling water return line 39. Conically concave end 40 of lance 24 is shown within the furnace and contributes greatly to efficiency 0f the lancing system. When lance 24 is not in use it is withdrawn from the furnace along with hood 32. Thus it will be understood by those skilled in the art that all the lines supplying lance 24 and exhausting hood 32 are designed to facilitate the movement of the lance.
  • a system for supplying heat and process oxygen to a metallurgical operation comprising:
  • a lance consisting of at least four nesting pipes spaced apart from one another, 2. means connected to one end of the lance a. to supply high pressure oxygen to the centermost pipe,
  • a tip affixed to the other end of said lance and enclosing said conduit carrying water comprising a concave end wall having at the point of greatest concavity a port comprising a nozzle for said high pressure oxygen and having arcuate sets of ports therein communicating with the conduits carrying low pressure oxygen, natural gas and air each set of ports being spaced apart from the next set of ports by a distance of about 0.75 to 1.5 inch in the axial direction and 4. means to regulate the flow of said low pressure oxygen, natural gas and low pressure air to provide at least l0% of the oxygen needed for combustion of said natural gas in the form of low pressure oxygen.
  • a system as in claim 1 wherein the lance comprises five concentrically nesting pipes adapted to convey natural gas, low pressure oxygen and air in separate conduits.
  • a tip affixed to the other end of said lance and enclosing said conduit carrying water comprising a concave end wall having at the point of greatest concavity a port comprising a nozzle for said high pressure oxygen and having arcuate sets of ports therein communicating with the conduits carrying low pressure oxygen, natural gas and air each set of ports being spaced apart-from the next set of ports by a distance of about 0.75 to 1.5 inch in the axial direction and 4.
  • a process as in claim 4 wherein turbulently flowing low pressure air and oxygen flow in separate conduits in the lance which separate conduits radially abut the conduit carrying turbulently flowing natural gas.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
US446688A 1974-02-28 1974-02-28 Metallurgical lance Expired - Lifetime US3889933A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US446688A US3889933A (en) 1974-02-28 1974-02-28 Metallurgical lance
CA218,860A CA1042207A (fr) 1974-02-28 1975-01-28 Lance de metallurgie
PH16811A PH12273A (en) 1974-02-28 1975-02-17 Metallurgical lance
ZA00751239A ZA751239B (en) 1974-02-28 1975-02-27 Metallurgical lance
JP2494975A JPS578852B2 (fr) 1974-02-28 1975-02-28
BE153881A BE826144A (fr) 1974-02-28 1975-02-28 Lance metallurgique
AU78670/75A AU489718B2 (en) 1974-02-28 1975-02-28 Metallurgical lance
ZM25/75A ZM2575A1 (en) 1974-02-28 1975-02-28 Metallurgical lance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US446688A US3889933A (en) 1974-02-28 1974-02-28 Metallurgical lance

Publications (1)

Publication Number Publication Date
US3889933A true US3889933A (en) 1975-06-17

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Application Number Title Priority Date Filing Date
US446688A Expired - Lifetime US3889933A (en) 1974-02-28 1974-02-28 Metallurgical lance

Country Status (7)

Country Link
US (1) US3889933A (fr)
JP (1) JPS578852B2 (fr)
BE (1) BE826144A (fr)
CA (1) CA1042207A (fr)
PH (1) PH12273A (fr)
ZA (1) ZA751239B (fr)
ZM (1) ZM2575A1 (fr)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249722A (en) * 1979-05-11 1981-02-10 Dravo Corporation Apparatus for the flash oxidation of metal concentrates
EP0055956A1 (fr) * 1980-12-22 1982-07-14 INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE (IRSID) France Lance de soufflage de gaz oxydant, notamment d'oxygène, pour le traitement des métaux en fusion
US4389243A (en) * 1979-05-11 1983-06-21 Dravo Corporation Method for the flash oxidation of metal concentrates
US4455949A (en) * 1980-02-13 1984-06-26 Brennstoffinstitut Freiberg Burner for gasification of powdery fuels
US4622007A (en) * 1984-08-17 1986-11-11 American Combustion, Inc. Variable heat generating method and apparatus
US4642047A (en) * 1984-08-17 1987-02-10 American Combustion, Inc. Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining
US4931013A (en) * 1989-07-06 1990-06-05 Mg Industries High-temperature burner
US5251879A (en) * 1989-09-29 1993-10-12 Floyd John M Top submerged injection with a shrouded lance
US5308043A (en) * 1991-09-20 1994-05-03 Ausmelt Pty. Ltd. Top submergable lance
EP0866138A1 (fr) * 1997-03-18 1998-09-23 Praxair Technology, Inc. Prosede pour intoduire un gaz dans un liquide
WO2000012767A1 (fr) * 1998-08-28 2000-03-09 Voest-Alpine Industrieanlagenbau Gmbh Procede de production d'une masse metallique en fusion et lance multifonction utilisee
US6171544B1 (en) 1999-04-02 2001-01-09 Praxair Technology, Inc. Multiple coherent jet lance
US6176894B1 (en) 1998-06-17 2001-01-23 Praxair Technology, Inc. Supersonic coherent gas jet for providing gas into a liquid
EP1122492A1 (fr) * 2000-02-02 2001-08-08 Praxair Technology, Inc. Système pour générer des jets cohérents et turbulents voisins
WO2002002827A1 (fr) * 2000-06-29 2002-01-10 Ola Lundqvist Lance
US20040084087A1 (en) * 2002-10-30 2004-05-06 Sanfilippo John E. Apparatus and method for controlling and distributing gas flow
US20060022068A1 (en) * 2004-08-02 2006-02-02 Soria F J Compact gassing lance
US20060213153A1 (en) * 2005-03-03 2006-09-28 Sanfilippo James J Device and system for modified atmosphere packaging
WO2007008973A3 (fr) * 2005-07-13 2007-03-01 Praxair Technology Inc Procede de formation de jet coherent
US20120042970A1 (en) * 2010-08-17 2012-02-23 Klages Steven S Device and method for supplying a sorbent
WO2013080110A1 (fr) 2011-11-30 2013-06-06 Outotec Oyj Lances refroidies par un fluide pour injection immergée par le haut
WO2014167532A1 (fr) 2013-04-12 2014-10-16 Outotec Oyj Appareil pour mesures de température d'un bain de fusion dans une installation de lance d'injection submergée par le haut
WO2015056142A1 (fr) 2013-10-16 2015-04-23 Outotec (Finland) Oy Lance d'injection submergée par le haut pour un transfert de chaleur augmenté
WO2015056143A1 (fr) 2013-10-16 2015-04-23 Outotec (Finland) Oy Canne d'injection à sommet immergé pour combustion immergée améliorée
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
RU2810856C1 (ru) * 2023-07-21 2023-12-28 Федеральное государственное бюджетное учреждение науки Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук Горелочное устройство

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6027159U (ja) * 1983-07-26 1985-02-23 株式会社　島田資材 マンホ−ル側塊
CA2041297C (fr) * 1991-04-26 2001-07-10 Samuel Walton Marcuson Convertisseur et methode de gonflage par le haut d'un metal non ferreux
US8623114B2 (en) 2010-02-16 2014-01-07 Praxair Technology, Inc. Copper anode refining system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725933A (en) * 1951-05-03 1955-12-06 Texas Co Gas burner apparatus for the generation of carbon monoxide and hydrogen
US2767785A (en) * 1947-05-09 1956-10-23 Texas Co Gas burner
US3130252A (en) * 1959-02-20 1964-04-21 Arbed Lances for treatment of metal baths
US3216714A (en) * 1963-02-04 1965-11-09 Bot Brassert Oxygen Technik Ag Heating and blowing device for metallurgical purposes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767785A (en) * 1947-05-09 1956-10-23 Texas Co Gas burner
US2725933A (en) * 1951-05-03 1955-12-06 Texas Co Gas burner apparatus for the generation of carbon monoxide and hydrogen
US3130252A (en) * 1959-02-20 1964-04-21 Arbed Lances for treatment of metal baths
US3216714A (en) * 1963-02-04 1965-11-09 Bot Brassert Oxygen Technik Ag Heating and blowing device for metallurgical purposes

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249722A (en) * 1979-05-11 1981-02-10 Dravo Corporation Apparatus for the flash oxidation of metal concentrates
US4389243A (en) * 1979-05-11 1983-06-21 Dravo Corporation Method for the flash oxidation of metal concentrates
US4455949A (en) * 1980-02-13 1984-06-26 Brennstoffinstitut Freiberg Burner for gasification of powdery fuels
EP0055956A1 (fr) * 1980-12-22 1982-07-14 INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE (IRSID) France Lance de soufflage de gaz oxydant, notamment d'oxygène, pour le traitement des métaux en fusion
EP0192682A4 (fr) * 1984-08-17 1988-09-07 American Comb Inc Procede et appareil generateurs de flammes.
US4642047A (en) * 1984-08-17 1987-02-10 American Combustion, Inc. Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining
USRE33464E (en) * 1984-08-17 1990-11-27 American Combustion, Inc. Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining
US4622007A (en) * 1984-08-17 1986-11-11 American Combustion, Inc. Variable heat generating method and apparatus
US4931013A (en) * 1989-07-06 1990-06-05 Mg Industries High-temperature burner
US5251879A (en) * 1989-09-29 1993-10-12 Floyd John M Top submerged injection with a shrouded lance
US5308043A (en) * 1991-09-20 1994-05-03 Ausmelt Pty. Ltd. Top submergable lance
EP0866138A1 (fr) * 1997-03-18 1998-09-23 Praxair Technology, Inc. Prosede pour intoduire un gaz dans un liquide
RU2208749C2 (ru) * 1997-03-18 2003-07-20 Праксайр Текнолоджи, Инк. Способ введения газа в жидкость
US6383445B1 (en) 1998-06-17 2002-05-07 Praxair Technology, Inc. Supersonic coherent gas jet for providing gas into a liquid
US6176894B1 (en) 1998-06-17 2001-01-23 Praxair Technology, Inc. Supersonic coherent gas jet for providing gas into a liquid
US6558614B1 (en) 1998-08-28 2003-05-06 Voest-Alpine Industrieanlagenbau Gmbh Method for producing a metal melt and corresponding multifunction lance
WO2000012767A1 (fr) * 1998-08-28 2000-03-09 Voest-Alpine Industrieanlagenbau Gmbh Procede de production d'une masse metallique en fusion et lance multifonction utilisee
RU2219247C2 (ru) * 1998-08-28 2003-12-20 Фоест-Альпине Индустрианлагенбау ГмбХ Способ получения металлического расплава и многофункциональная фурма для получения металлического расплава (варианты)
US6171544B1 (en) 1999-04-02 2001-01-09 Praxair Technology, Inc. Multiple coherent jet lance
EP1122492A1 (fr) * 2000-02-02 2001-08-08 Praxair Technology, Inc. Système pour générer des jets cohérents et turbulents voisins
WO2002002827A1 (fr) * 2000-06-29 2002-01-10 Ola Lundqvist Lance
US20060102736A1 (en) * 2002-10-30 2006-05-18 Sanfilippo John E Apparatus and method for controlling and distributing gas flow
US20040084087A1 (en) * 2002-10-30 2004-05-06 Sanfilippo John E. Apparatus and method for controlling and distributing gas flow
US7198206B2 (en) 2004-08-02 2007-04-03 Clear Lam, Inc. Compact gassing lance
US20060022068A1 (en) * 2004-08-02 2006-02-02 Soria F J Compact gassing lance
US20060213153A1 (en) * 2005-03-03 2006-09-28 Sanfilippo James J Device and system for modified atmosphere packaging
WO2007008973A3 (fr) * 2005-07-13 2007-03-01 Praxair Technology Inc Procede de formation de jet coherent
CN101163920B (zh) * 2005-07-13 2011-07-06 普莱克斯技术有限公司 形成凝聚射流的方法
US8578965B2 (en) * 2010-08-17 2013-11-12 Babcock & Wilcox Canada Ltd. Device and method for supplying a sorbent
US20120042970A1 (en) * 2010-08-17 2012-02-23 Klages Steven S Device and method for supplying a sorbent
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
US9829250B2 (en) 2011-11-30 2017-11-28 Outotec Oyj Fluid cooled lances for top submerged injection
WO2014167532A1 (fr) 2013-04-12 2014-10-16 Outotec Oyj Appareil pour mesures de température d'un bain de fusion dans une installation de lance d'injection submergée par le haut
WO2015056142A1 (fr) 2013-10-16 2015-04-23 Outotec (Finland) Oy Lance d'injection submergée par le haut pour un transfert de chaleur augmenté
WO2015056143A1 (fr) 2013-10-16 2015-04-23 Outotec (Finland) Oy Canne d'injection à sommet immergé pour combustion immergée améliorée
US10077940B2 (en) 2013-10-16 2018-09-18 Outotec (Finland) Oy Top submerged injection lance for enhanced submerged combustion
RU2810856C1 (ru) * 2023-07-21 2023-12-28 Федеральное государственное бюджетное учреждение науки Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук Горелочное устройство

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AU7867075A (en) 1976-09-02
JPS50121106A (fr) 1975-09-22
BE826144A (fr) 1975-08-28
ZM2575A1 (en) 1976-12-21
ZA751239B (en) 1975-11-26
CA1042207A (fr) 1978-11-14
PH12273A (en) 1978-12-12
JPS578852B2 (fr) 1982-02-18

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