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US3101384A - Tuyere arrangement - Google Patents

Tuyere arrangement Download PDF

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Publication number
US3101384A
US3101384A US106911A US10691161A US3101384A US 3101384 A US3101384 A US 3101384A US 106911 A US106911 A US 106911A US 10691161 A US10691161 A US 10691161A US 3101384 A US3101384 A US 3101384A
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US
United States
Prior art keywords
tuyere
central tube
terminal portion
arrangement
cooling
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
US106911A
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English (en)
Inventor
Metz Paul
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.)
Arcelor Luxembourg SA
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Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US3101384A publication Critical patent/US3101384A/en
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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

Definitions

  • PAUL METZ his ATTORNEYS Aug. 20, 1963 P. METZ TUYERE ARRANGEMENT Y Filed May 1, 1961 4 Sheets-Sheet 5 INVEN TOR. PAUL METZ ATTORNEYS his Aug. 20, 1963 P. METZ 3,101,384
  • Tuyere arrangements such as the one described above generally have a number of drawbacks: namely, they either involve a direct contact of materials whose thermal expansion coefficients are very dissimilar, or no connection is provided between the central tube, together with its associated nozzle, and the cooling apparatus.
  • the devices of the prior art either subject the components forming the tuyere arrangements to heavy strains engendered by abrupt changes of temperatures, or an ineffective cooling arrangement is substituted to reduce such strains.
  • a tuyere arrangement which comprises a central tube that houses an abrasion and corrosion-proof tuyere or nozzle on the inside thereof.
  • the central tube is encompassed by an exterior cooling member; however, contact between the central tube and the cooling apparatus only occurs at the terminal portions thereof.
  • the tuyere is separated from the cooling apparatus, thereby eliminating strains due to dilierences in expansion, whereas cooling is provided through the central tube itself which is encompassed by the cooling apparatus and which is in direct contact with both the tuyere and a portion of the cooling apparatus.
  • the central tube advantageously comprises a lower and an upper portion, the lower portion serving as a support for the tuyere, whose terminal segment is conveniently made of heat resistant steel, the upper portion serving to feed the refining gas to the tuyere.
  • the central tube is provided with springs which maintain the tube against a shoulder formed from the lower inside terminal part of the cooling apparatus.
  • Support for the tuyere is provided by a tapered surface or a separate shoulder for-med from the lower inside terminal portion of the central tube. Additionally, the inside of the central tube is indented to accommodate the tuyere.
  • the central tube is placed concentrically within the encompassing cooling apparatus, and is conveniently fitted therein upon a shoulder formed fromthe lower inside terminal portion of the cooling apparatus.
  • Contact between the central tube and the cooling member may also be provided by tapered contact surfaces at the lower portions thereof, or by non-tapered adjacent cylindrical surfaces.
  • FIG. 1 is a cut-away view of an exemplary tuyere arrangement embodying the principles of the present invention
  • FIG. 2 is a cut-away view of a similar tuyere arrangement
  • FIGS. 3 and 4 are cut-away views of the lower portions of tuyere arrangements involving slight modifications of the arrangement shown in FIG. 2;
  • FIG. 5 is a cut-away view of a tuyere arrangement in accordance with the inventionutilizing a spring to maintain parts of the arrangement in place.
  • a .tuyere arrangement is shown that comprises a central tube formed from central tube sections 1, 2, 3 and 4.
  • the upper'section 1 and the next lower section 2 are affixed together, for example, by soldering.
  • the section 2 is in turn coupled to an intermediate section 3 by a threaded ring 5.
  • the intermediate section 3 and the lower portion 4 of the central tube are threaded together as shown at 6.
  • a lower terminal portion 7 of the central tube section 4- is mounted upon a lower terminal portion 8 of a cool ing member 9.
  • the cooling member which contains a gas or liquid coolant therein (not shown), has an abut ment it) that forms a part of the portion 8. This abutment serves as a support for the terminal portion 7 of the central tube.
  • a tuyere or nozzle 13 is rigidly held in an indented portion of the central tube between one limit 11 thereof and a tapered surface 12 of the terminal portion 7.
  • the lower terminal portion of the tuyere 13 also rests upon the abutment lit. In this fashion, the tuyere, which conducts refining gas therethrough, is almost entirely separated from the cooling member 9 except for its contact with the abutment l0, and thus is not subject to undue strains due to varying degrees of expansion and contraction in the member 9. 7
  • An inside lining wall 14 of the cooling apparatus 9 is separated from to central tube sections 1, 2, 3 and 4 by an annular space 15 which serves to insulate the cooling apparatus from the central tube.
  • a secondary supply of gas from a gas source may be injected into the space 15 from which it passes by way of an orifice l6 and a duct 17 into the main stream of refining gas passing through the tuyere 13.
  • the cut-away portion 18 may be filled with a material 19, such as, for example, cement or sand.
  • the terminal portion 7 of the central tube section 4 is fitted to the latter by a threaded bearing 26.
  • the terminal portion 8 of the cooling member 9' is modified to eliminate the shoulder 10 of FIG. 1 and to provide a completely cylindrical, freely fitting contact between the terminal portions 7 and 8. These two portions contact each other as shown at 21, and the spacing therebetween is reduced to a minimum consistent with the fitting of the entire assembly.
  • the tuyere 13 is completely separated from the cooling member 9, and this further reduces the danger of strains engendered by the expansion and contraction of the cooling member.
  • FIG. 3 the arrangement of FIG. 2 is modified to provide a tapered contact surface 22 between the terminal I portions 7 and 8. In this fashion an efiective contact between the central tube section 4 and the cooling member 9 is ensured once the central tube is raised to bring the two terminal portions 7 and 8 into contact with each other.
  • FIG. 4 the arrangement is similar to that shown in FIG. 3. However, the terminal portion 7 of the central tube section 4 is modified to provide a jutting shoulder 23 upon which the tuyere 13 rests.
  • FIG. 5 the arrangement is similar to that shown in FIG. 4.
  • a spring 24 is included which bears against a' shoulder 25 formed on the central tube section 2 and against a shoulder 26 formed on the inside lining wall 14 of the cooling apparatus 9 to urge apart the shoulders 25 and 26 and thus yieldingly bias the tuyere terminal portion 7 against the cooling member terminal portion 3 at the tapered contact surface 22. 1
  • Metallurgical refining apparatus comprising an outer member formed from two substantially concentric cylinders joined together at terminal portions thereof, a cooling medium carried between said cylinders, an intermediate substantially cylindrical member carried concentrically within said outer member and contacting at an outer terminal portion thereof an inner terminal portion of the inner one-of said two concentric cylinders, and an abrasion and corrosion-proof tuyere member carried concentrically within and positioned against and supported by said intermediate cylindrical member.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
US106911A 1960-05-18 1961-05-01 Tuyere arrangement Expired - Lifetime US3101384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU38682 1960-05-18

Publications (1)

Publication Number Publication Date
US3101384A true US3101384A (en) 1963-08-20

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ID=19722318

Family Applications (1)

Application Number Title Priority Date Filing Date
US106911A Expired - Lifetime US3101384A (en) 1960-05-18 1961-05-01 Tuyere arrangement

Country Status (4)

Country Link
US (1) US3101384A (fr)
BE (1) BE600917A (fr)
DE (1) DE1608579B1 (fr)
GB (1) GB919402A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155800A (en) * 1975-01-27 1979-05-22 The Boeing Company Apparatus for reticulating an adhesive to conform to a surface of an apertured workpiece
US4858538A (en) * 1988-06-16 1989-08-22 Shell Oil Company Partial combustion burner
US4887962A (en) * 1988-02-17 1989-12-19 Shell Oil Company Partial combustion burner with spiral-flow cooled face
CN101363623B (zh) * 2007-08-06 2010-12-08 国际壳牌研究有限公司 燃烧器
US9032623B2 (en) 2007-08-06 2015-05-19 Shell Oil Company Method of manufacturing a burner front face
CN106061621A (zh) * 2014-03-21 2016-10-26 西门子公司 用于喷嘴的冷却设备和具有用于热力喷射的冷却设备的喷嘴装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504856A (en) * 1969-05-15 1970-04-07 Louis Hinkeldey Jr Oxygen lance assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR636426A (fr) * 1928-04-10
US2023025A (en) * 1934-05-11 1935-12-03 Arthur G Mckee Insulated blowpipe
US2339623A (en) * 1941-12-03 1944-01-18 Gen Electric Condensation product of aldehydes and carbamidomethylamino triazines and method of preparing the same
US2828956A (en) * 1954-10-01 1958-04-01 Union Carbide Corp Top blowing oxygen nozzle in molten metal
US2829960A (en) * 1954-01-18 1958-04-08 Henry J Kaiser Company Method and metallurgical device for the refining of steel
FR1247884A (fr) * 1959-03-03 1960-12-02 Arbed Procédé et dispositif d'injection par le haut de gaz dans un bain métallique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1134227A (fr) * 1954-11-12 1957-04-09 Procédé et tuyère pour la fabrication d'acier par soufflage oxydant d'un bain de fer impur
FR1211977A (fr) * 1958-01-13 1960-03-21 Arbed Dispositif d'insuffiation de matières solides dans un bain métallique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR636426A (fr) * 1928-04-10
US2023025A (en) * 1934-05-11 1935-12-03 Arthur G Mckee Insulated blowpipe
US2339623A (en) * 1941-12-03 1944-01-18 Gen Electric Condensation product of aldehydes and carbamidomethylamino triazines and method of preparing the same
US2829960A (en) * 1954-01-18 1958-04-08 Henry J Kaiser Company Method and metallurgical device for the refining of steel
US2828956A (en) * 1954-10-01 1958-04-01 Union Carbide Corp Top blowing oxygen nozzle in molten metal
FR1247884A (fr) * 1959-03-03 1960-12-02 Arbed Procédé et dispositif d'injection par le haut de gaz dans un bain métallique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155800A (en) * 1975-01-27 1979-05-22 The Boeing Company Apparatus for reticulating an adhesive to conform to a surface of an apertured workpiece
US4887962A (en) * 1988-02-17 1989-12-19 Shell Oil Company Partial combustion burner with spiral-flow cooled face
US4858538A (en) * 1988-06-16 1989-08-22 Shell Oil Company Partial combustion burner
CN101363623B (zh) * 2007-08-06 2010-12-08 国际壳牌研究有限公司 燃烧器
US20120100496A1 (en) * 2007-08-06 2012-04-26 Anne Boer Burner
US9032623B2 (en) 2007-08-06 2015-05-19 Shell Oil Company Method of manufacturing a burner front face
CN106061621A (zh) * 2014-03-21 2016-10-26 西门子公司 用于喷嘴的冷却设备和具有用于热力喷射的冷却设备的喷嘴装置
US20170100732A1 (en) * 2014-03-21 2017-04-13 Siemens Aktiengesellschaft Cooling Device For A Spraying Nozzle Or Spraying Nozzle As-sembly With A Cooling Device For Thermal Spraying
US10166558B2 (en) * 2014-03-21 2019-01-01 Siemens Aktiengesellschaft Cooling device for a spraying nozzle or spraying nozzle assembly with a cooling device for thermal spraying

Also Published As

Publication number Publication date
BE600917A (fr) 1961-07-03
DE1608579B1 (de) 1970-07-30
GB919402A (en) 1963-02-27

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