JPS569309A - Blow-charger for powdery granular treating agent for molten pig iron with vertically movable lance - Google Patents

Blow-charger for powdery granular treating agent for molten pig iron with vertically movable lance

Info

Publication number
JPS569309A
JPS569309A JP8393179A JP8393179A JPS569309A JP S569309 A JPS569309 A JP S569309A JP 8393179 A JP8393179 A JP 8393179A JP 8393179 A JP8393179 A JP 8393179A JP S569309 A JPS569309 A JP S569309A
Authority
JP
Japan
Prior art keywords
lance
blowing
treating agent
tank
pig iron
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.)
Granted
Application number
JP8393179A
Other languages
Japanese (ja)
Other versions
JPS5747245B2 (en
Inventor
Koichi Takada
Yoshiro Morimoto
Masaharu Ueda
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP8393179A priority Critical patent/JPS569309A/en
Publication of JPS569309A publication Critical patent/JPS569309A/en
Publication of JPS5747245B2 publication Critical patent/JPS5747245B2/ja
Granted 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising

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)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE:To permit the blowing a treating agent into molten pig iron with a large solid-vapor ratio by designating the inside diameter of a blowing lance and the diameter of a transport pipe at specific sizes in the blowing of a powdery granular treating agent with a carrier gas into the molten pig iron. CONSTITUTION:On the fixed or movable holder 10, the blowing tank 3 and the vertically movable holder 7 for the lance 5 are fixed, and the tank 3 and the lance 5 are connected by the flexible hose 6. Various kinds of treating agents of a grain size of 1mm. or less are blown into the blowing tank 3 through the chute 2 from the bunker 1 and then blown by means of a carrier gas from the inlet 4 by dipping the lance 5 into the molten metal inside the laddle 12 below the holder 10. In this case, the lance 5 alone is vertically moved, eliminating the movement of the weighty tank 3 system. Also, by designating the sectional area A of the tip of the lance 5 and the diameter D of the transporting pipe for the treating agent at values meeting the formula (I), the high density blowing of the treating agent with a solid-vapor ratio of 20 to 80 can be made possible.
JP8393179A 1979-07-04 1979-07-04 Blow-charger for powdery granular treating agent for molten pig iron with vertically movable lance Granted JPS569309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8393179A JPS569309A (en) 1979-07-04 1979-07-04 Blow-charger for powdery granular treating agent for molten pig iron with vertically movable lance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8393179A JPS569309A (en) 1979-07-04 1979-07-04 Blow-charger for powdery granular treating agent for molten pig iron with vertically movable lance

Publications (2)

Publication Number Publication Date
JPS569309A true JPS569309A (en) 1981-01-30
JPS5747245B2 JPS5747245B2 (en) 1982-10-08

Family

ID=13816336

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8393179A Granted JPS569309A (en) 1979-07-04 1979-07-04 Blow-charger for powdery granular treating agent for molten pig iron with vertically movable lance

Country Status (1)

Country Link
JP (1) JPS569309A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496454A (en) * 1972-03-20 1974-01-21
JPS50102515A (en) * 1974-01-18 1975-08-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496454A (en) * 1972-03-20 1974-01-21
JPS50102515A (en) * 1974-01-18 1975-08-13

Also Published As

Publication number Publication date
JPS5747245B2 (en) 1982-10-08

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