ES392685A1 - Double delivery lance for refining the steel in the converter processes - Google Patents

Double delivery lance for refining the steel in the converter processes

Info

Publication number
ES392685A1
ES392685A1 ES392685A ES392685A ES392685A1 ES 392685 A1 ES392685 A1 ES 392685A1 ES 392685 A ES392685 A ES 392685A ES 392685 A ES392685 A ES 392685A ES 392685 A1 ES392685 A1 ES 392685A1
Authority
ES
Spain
Prior art keywords
lance
axis
nozzles
conduit
respect
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
Application number
ES392685A
Other languages
Spanish (es)
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.)
Centro Sperimentale Metallurgico SpA
Original Assignee
Centro Sperimentale Metallurgico SpA
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 Centro Sperimentale Metallurgico SpA filed Critical Centro Sperimentale Metallurgico SpA
Publication of ES392685A1 publication Critical patent/ES392685A1/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Double-delivery refining lance comprising: a main conduit, in a central location with its axis coinciding with the lance axis, diverging into a set of nozzles a secondary outer annular conduit disposed concentrically about the main conduit diverging in its turn into a set of nozzles, as well as annular conduits, disposed concentrically about the above mentioned main and secondary conduits for cooling fluid input and output respectively. The discharging nozzles of the main conduit diverge conically with respect to the lance axis downwardly by an acute angle and are arranged symmetrically also the discharging nozzles of the secondary circuit are downwardly inclined with respect to the lance axis by an acute angle not necessarily coinciding with the former and symmetrically arranged the inclination of the discharging nozzles of the main conduit and respectively of the secondary conduit, and their respective locations, longitudinally and radially with respect to the lance axis, are such as to make the lance particularly useful in converters rotating around a vertical axis.
ES392685A 1970-07-01 1971-06-26 Double delivery lance for refining the steel in the converter processes Expired ES392685A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5183870 1970-07-01

Publications (1)

Publication Number Publication Date
ES392685A1 true ES392685A1 (en) 1973-08-01

Family

ID=11275816

Family Applications (1)

Application Number Title Priority Date Filing Date
ES392685A Expired ES392685A1 (en) 1970-07-01 1971-06-26 Double delivery lance for refining the steel in the converter processes

Country Status (12)

Country Link
US (1) US3730505A (en)
JP (1) JPS523322B1 (en)
AT (1) AT334935B (en)
BE (1) BE769142A (en)
CA (1) CA974057A (en)
DE (1) DE2131345A1 (en)
ES (1) ES392685A1 (en)
FR (1) FR2097098B1 (en)
GB (1) GB1349069A (en)
LU (1) LU63398A1 (en)
NL (1) NL7109012A (en)
ZA (1) ZA713585B (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230274A (en) * 1978-07-10 1980-10-28 Pullman Berry Company Lance for removing skulls from steelmaking vessels
US4322033A (en) * 1978-07-10 1982-03-30 Pullman Berry Company Lance and method for removing skulls from steelmaking vessels
JPS5816013A (en) * 1981-07-17 1983-01-29 Kawasaki Steel Corp Operating method for top and bottom blown converter and top blowing lance for operation of top and bottom blown converter
NL8104474A (en) * 1981-10-01 1983-05-02 Estel Hoogovens Bv LIQUID COOLED LANCE FOR BLOWING OXYGEN ON A STEEL BATH.
NL8201269A (en) * 1982-03-26 1983-10-17 Hoogovens Groep Bv METHOD FOR MANUFACTURING STEEL IN A CONVERTER FROM CRUDE IRON AND SCRAP.
DE3231867A1 (en) * 1982-08-27 1984-03-01 Saar-Metallwerke GmbH, 6600 Saarbrücken DUAL CIRCUIT FOR FRESH METAL MELTING
LU84433A1 (en) * 1982-10-22 1984-05-10 Mecan Arbed Dommeldange S A R DEVICE FOR PROVIDING CARBONATED AND SOLID MATERIALS TO A METAL BATH IN THE REFINING PROCESS
NL8400393A (en) * 1984-02-08 1985-09-02 Hoogovens Groep Bv LIQUID COOLED LANCE FOR BLOWING OXYGEN ON A STEEL BATH.
AU640955B2 (en) * 1989-09-29 1993-09-09 Ausmelt Pty Ltd Top submerged injection with a shrouded lance
CA2066455C (en) * 1989-09-29 1995-12-19 John Millace Floyd Top submerged injection with a shrouded lance
IN181041B (en) * 1991-09-20 1998-04-18 Ausmelt Ltd
US5865876A (en) * 1995-06-07 1999-02-02 Ltv Steel Company, Inc. Multipurpose lance
BE1009743A3 (en) * 1995-06-23 1997-07-01 Thomas Jacques Tuyere blowing oxygen steel.
DE19543960C2 (en) * 1995-11-25 2000-04-06 Driam Metallprodukt Gmbh & Co Spray arm for a coating device
US5830259A (en) * 1996-06-25 1998-11-03 Ltv Steel Company, Inc. Preventing skull accumulation on a steelmaking lance
DE602005015575D1 (en) * 2004-05-14 2009-09-03 Linde Inc FINE OF MELT LIQUID METAL
AU2012276276B2 (en) 2011-06-30 2015-01-22 Metso Metals Oy Top submerged injecting lances
ES2621331T3 (en) 2011-09-02 2017-07-03 Outotec Oyj Spears for superior submerged injection
MX2014006334A (en) 2011-11-30 2014-06-23 Outotec Oyj Fluid cooled lances for top submerged injection.
AU2013204818B2 (en) 2013-04-12 2015-02-19 Metso Metals Oy Molten bath temperature measurement for a top submerged lance injection installation
KR101700078B1 (en) 2013-10-16 2017-01-26 오토텍 (핀랜드) 오와이 Top submerged injection lance for enhanced submerged combustion
WO2015056142A1 (en) 2013-10-16 2015-04-23 Outotec (Finland) Oy Top submerged injection lance for enhanced heat transfer
WO2022074428A1 (en) * 2020-10-06 2022-04-14 Arcelormittal Lance for blowing oxygen in steelmaking

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1317735A (en) * 1963-05-08
US3309195A (en) * 1965-05-05 1967-03-14 Leland H Hutton Method of delivering oxygen to basic oxygen furnaces, and oxygen lances therefor
CH469943A (en) * 1967-03-21 1969-03-15 Nova Hut Klementa Gottwalda Na Nozzle for burning liquid fuels or for blowing oxidizing gas into steel furnaces
US3488044A (en) * 1967-05-01 1970-01-06 Nat Steel Corp Apparatus for refining metal
CH496095A (en) * 1968-02-21 1970-09-15 Vitkovice Zelezarny Blowing nozzle for steel hearth ovens, especially tandem ovens

Also Published As

Publication number Publication date
NL7109012A (en) 1972-01-04
JPS523322B1 (en) 1977-01-27
GB1349069A (en) 1974-03-27
BE769142A (en) 1971-11-03
FR2097098B1 (en) 1974-05-31
FR2097098A1 (en) 1972-03-03
ATA570971A (en) 1976-06-15
ZA713585B (en) 1972-01-26
AT334935B (en) 1977-02-10
US3730505A (en) 1973-05-01
DE2131345A1 (en) 1972-01-13
LU63398A1 (en) 1971-09-22
CA974057A (en) 1975-09-09

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