GB1010275A - Method and apparatus for adding solids and oxygen to an open hearth furnace - Google Patents

Method and apparatus for adding solids and oxygen to an open hearth furnace

Info

Publication number
GB1010275A
GB1010275A GB28281/62A GB2828162A GB1010275A GB 1010275 A GB1010275 A GB 1010275A GB 28281/62 A GB28281/62 A GB 28281/62A GB 2828162 A GB2828162 A GB 2828162A GB 1010275 A GB1010275 A GB 1010275A
Authority
GB
United Kingdom
Prior art keywords
oxygen
central passage
delivered
lance
passages
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
GB28281/62A
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.)
United States Steel Corp
Original Assignee
United States Steel Corp
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 United States Steel Corp filed Critical United States Steel Corp
Publication of GB1010275A publication Critical patent/GB1010275A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • 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
    • C21C5/4613—Refractory coated lances; Immersion lances
    • 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
    • F27D3/16—Introducing a fluid jet or current into the charge

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

<PICT:1010275/C6-C7/1> <PICT:1010275/C6-C7/2> Powdered lime, ore or fluorspar, is added to the melt in an open hearth furnace in a low velocity stream directed into a zone where the oxygen of a high velocity stream disperses. Air borne solids from a device which can be moved to draw material from any of a row of hoppers, are delivered to the central passage 30 of a water cooled lance, Fig. 2, high pressure oxygen being fed to the outer passage 26. The lance nozzle, Fig. 4, has a number of oxygen delivery passages 34 surrounding the central passage 30, and auxiliary passages 36 connect the central passage 30 and passages 34. The lance can be raised and lowered through the furnace roof, and the volume of oxygen delivered through the central passage is not made than 10% of that delivered through the outer openings 34.
GB28281/62A 1961-07-27 1962-07-23 Method and apparatus for adding solids and oxygen to an open hearth furnace Expired GB1010275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US127184A US3240481A (en) 1961-07-27 1961-07-27 Apparatus for adding solids and oxygen to an open hearth furnace

Publications (1)

Publication Number Publication Date
GB1010275A true GB1010275A (en) 1965-11-17

Family

ID=22428744

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28281/62A Expired GB1010275A (en) 1961-07-27 1962-07-23 Method and apparatus for adding solids and oxygen to an open hearth furnace

Country Status (3)

Country Link
US (1) US3240481A (en)
DE (1) DE1433656A1 (en)
GB (1) GB1010275A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT254919B (en) * 1963-09-23 1967-06-12 Oesterr Alpine Montan Method and device for the introduction of additives for the formation or treatment of the slag during wind refining of iron baths
US3436068A (en) * 1965-10-14 1969-04-01 Kennecott Copper Corp Oxygen lance
US3642060A (en) * 1970-03-16 1972-02-15 Bethlehem Steel Corp Water-cooled apparatus
US3948644A (en) * 1972-03-27 1976-04-06 Pennsylvania Engineering Corporation Steel making vessel with dust recycling method and means
FR2431542A1 (en) * 1978-07-19 1980-02-15 Creusot Loire BLOW NOZZLE
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
CN105612263B (en) * 2013-10-16 2019-02-19 奥图泰(芬兰)公司 Top-submerged formula for enhancing submersible burning sprays spray gun

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829960A (en) * 1954-01-18 1958-04-08 Henry J Kaiser Company Method and metallurgical device for the refining of steel
DE1408183A1 (en) * 1957-11-30 1968-10-03 Huettenwerk Oberhausen Ag Process for refining pig iron
GB859293A (en) * 1958-01-13 1961-01-18 Arbed Lances for blowing solid material into a melt of metal
US3130252A (en) * 1959-02-20 1964-04-21 Arbed Lances for treatment of metal baths
US3161499A (en) * 1960-10-12 1964-12-15 Percy James Ward Metallurgical process control
US3175817A (en) * 1960-11-28 1965-03-30 Union Carbide Corp Burner apparatus for refining metals
US3170016A (en) * 1962-11-23 1965-02-16 Nat Steel Corp Fluid transfer device

Also Published As

Publication number Publication date
DE1433656A1 (en) 1968-11-21
US3240481A (en) 1966-03-15

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