GB2021152A - Method of and Apparatus for Making Additions to Molten Metal - Google Patents

Method of and Apparatus for Making Additions to Molten Metal

Info

Publication number
GB2021152A
GB2021152A GB7908656A GB7908656A GB2021152A GB 2021152 A GB2021152 A GB 2021152A GB 7908656 A GB7908656 A GB 7908656A GB 7908656 A GB7908656 A GB 7908656A GB 2021152 A GB2021152 A GB 2021152A
Authority
GB
United Kingdom
Prior art keywords
particles
lance
molten metal
passage part
making additions
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.)
Withdrawn
Application number
GB7908656A
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.)
DUPORT STEELS Ltd
Original Assignee
DUPORT STEELS 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 DUPORT STEELS Ltd filed Critical DUPORT STEELS Ltd
Priority to GB7908656A priority Critical patent/GB2021152A/en
Publication of GB2021152A publication Critical patent/GB2021152A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F27D3/0025—Charging or loading melting furnaces with material in the solid state
    • F27D3/0026—Introducing additives into the melt
    • 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
    • F27D3/18—Charging particulate material using a fluid carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

A method of making additions of large dense particles such as lead to a bath of molten metal by accelerating the particles to a velocity of not less than 2200 cm per second. The particles can be introduced through a lance or through a port in a vessel containing the bath or by projection through the metal/slag/air interface. The particles are preferably introduced by means of a lance having a reservoir (13) at one end containing the particles and to which gas under pressure is fed. The lance contains an accelerating means comprising a first passage part (51) and a second, diverging, passage part (52) and four inclined passages (53) extending to the throat between the parts (51) and (52) and through which is fed further gas under pressure which expands in the second passage part (52) and accelerates the particles. <IMAGE>
GB7908656A 1977-12-10 1979-03-12 Method of and Apparatus for Making Additions to Molten Metal Withdrawn GB2021152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7908656A GB2021152A (en) 1977-12-10 1979-03-12 Method of and Apparatus for Making Additions to Molten Metal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5150977 1977-12-10
GB7908656A GB2021152A (en) 1977-12-10 1979-03-12 Method of and Apparatus for Making Additions to Molten Metal

Publications (1)

Publication Number Publication Date
GB2021152A true GB2021152A (en) 1979-11-28

Family

ID=26266893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7908656A Withdrawn GB2021152A (en) 1977-12-10 1979-03-12 Method of and Apparatus for Making Additions to Molten Metal

Country Status (1)

Country Link
GB (1) GB2021152A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162859A (en) * 1984-08-08 1986-02-12 Fischer Ag Georg Introducing an additive into a bath of molten metal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162859A (en) * 1984-08-08 1986-02-12 Fischer Ag Georg Introducing an additive into a bath of molten metal

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)