GB808145A - Method and means for blowing gases possibly carrying pulverulent material into a bath of molten metal - Google Patents

Method and means for blowing gases possibly carrying pulverulent material into a bath of molten metal

Info

Publication number
GB808145A
GB808145A GB20697/56A GB2069756A GB808145A GB 808145 A GB808145 A GB 808145A GB 20697/56 A GB20697/56 A GB 20697/56A GB 2069756 A GB2069756 A GB 2069756A GB 808145 A GB808145 A GB 808145A
Authority
GB
United Kingdom
Prior art keywords
nozzle
ladle
closable
carried
rod
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
GB20697/56A
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Publication of GB808145A publication Critical patent/GB808145A/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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material

Landscapes

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

Abstract

808,145. Foundry ladles; steel refining. INSTITUT DE RECHERCHES DE LA SIDEKURGIE. July 4, 1956 [July 5, 1955], No. 20697/56. Classes 72 and 82(1) Gases, or gases carrying pulverulent material, are blown into molten metal in a ladle, without using a lance, by injecting the gas directly through a closable orifice in the base of the ladle. As shown in Fig. 1, the base of the ladle 2 is fitted with a frusto-conical refractory nozzle 1 which is closable by a refractory plug 3 carried by a high-tensile wire or a spring-urged rod 4 which can be released suddenly by removal of a key 6, the rod 4 passing through a small opening in a gas pipe connection 12, which opening is closable by a flap valve 14. The nozzle is secured in position by means of studs 11, keys 10, a plate 9 and a packing 20 of a plastic material such as thick pitch or aluminous cement. The nozzle may be made of graphite, chromite, chamotte, magnesia or highly aluminous refractories, and it may have a single central channel or a number of parallel, upwardly diverging or helically arranged channels which may be metal lined. A cover 21 may be provided. In the form shown in Fig. 7 the nozzle 1 is closed by a pad 15 carried by a rod 16 which passes through a slot 22 in a cover 21 carried by a fixed arm 23. The ladle may have a conical bottom with a central or eccentric opening, and the Specification describes modifications of the engaging surfaces of the nozzle and plug. The invention is stated to be particularly applicable to the desulphurization of liquor pig iron by injecting pulverulent lime in a current of nitrogen or other non-oxidizing gas.
GB20697/56A 1955-07-05 1956-07-04 Method and means for blowing gases possibly carrying pulverulent material into a bath of molten metal Expired GB808145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR808145X 1955-07-05

Publications (1)

Publication Number Publication Date
GB808145A true GB808145A (en) 1959-01-28

Family

ID=9252786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20697/56A Expired GB808145A (en) 1955-07-05 1956-07-04 Method and means for blowing gases possibly carrying pulverulent material into a bath of molten metal

Country Status (1)

Country Link
GB (1) GB808145A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290942B (en) * 1959-02-20 1969-03-20 Arbed Device for blowing gases into a metal bath
EP0061987A1 (en) * 1981-03-23 1982-10-06 Arbed S.A. Process and apparatus for treating molten metals in the framework of metallurgical processing
WO1984002147A1 (en) * 1982-11-23 1984-06-07 Hinckleys Moulding Mat Apparatus for introducing substances into liquids e.g. metal melts
US4742995A (en) * 1985-02-15 1988-05-10 Injectall Limited Apparatus for introducing treatment substances into liquids
US4789141A (en) * 1986-07-05 1988-12-06 Injectall Limited Nozzles for injecting substances into liquids
US4900357A (en) * 1986-02-20 1990-02-13 Injectall Limited Injection of substances into high temperature liquids
USRE34418E (en) * 1982-11-23 1993-10-26 Injectall Limited Apparatus and method for introducing substances into liquid metal

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290942B (en) * 1959-02-20 1969-03-20 Arbed Device for blowing gases into a metal bath
EP0061987A1 (en) * 1981-03-23 1982-10-06 Arbed S.A. Process and apparatus for treating molten metals in the framework of metallurgical processing
WO1984002147A1 (en) * 1982-11-23 1984-06-07 Hinckleys Moulding Mat Apparatus for introducing substances into liquids e.g. metal melts
EP0116756A1 (en) * 1982-11-23 1984-08-29 Injectall Limited Apparatus for introducing substances into liquids e.g. metal melts
US4575393A (en) * 1982-11-23 1986-03-11 Injectall Limited Apparatus for introducing substances into liquids e.g. metal melts
EP0207224A1 (en) * 1982-11-23 1987-01-07 Injectall Limited Apparatus for introducing substances into liquids e.g. metal melts
US4701215A (en) * 1982-11-23 1987-10-20 Injectall Limited Apparatus for introducing substances into liquids e.g. metal melts
USRE34418E (en) * 1982-11-23 1993-10-26 Injectall Limited Apparatus and method for introducing substances into liquid metal
US4742995A (en) * 1985-02-15 1988-05-10 Injectall Limited Apparatus for introducing treatment substances into liquids
US4900357A (en) * 1986-02-20 1990-02-13 Injectall Limited Injection of substances into high temperature liquids
US4789141A (en) * 1986-07-05 1988-12-06 Injectall Limited Nozzles for injecting substances into liquids

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