JPS5467593A - High blast furnce water crush slag containg crystalline - Google Patents

High blast furnce water crush slag containg crystalline

Info

Publication number
JPS5467593A
JPS5467593A JP13497977A JP13497977A JPS5467593A JP S5467593 A JPS5467593 A JP S5467593A JP 13497977 A JP13497977 A JP 13497977A JP 13497977 A JP13497977 A JP 13497977A JP S5467593 A JPS5467593 A JP S5467593A
Authority
JP
Japan
Prior art keywords
slag
gas
molten slag
bubbling
jetted
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.)
Pending
Application number
JP13497977A
Other languages
Japanese (ja)
Inventor
Kaname Arakawa
Masao Kida
Yasuo Nakagawa
Kenjiro Nakamura
Tadashi Sato
Masahiro Murakami
Kazuo Kamei
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP13497977A priority Critical patent/JPS5467593A/en
Publication of JPS5467593A publication Critical patent/JPS5467593A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/034—Stirring or agitating by pressurised fluids or by moving apparatus
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/072—Tanks to collect the slag, e.g. water tank

Landscapes

  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE: Molten slag is bubbled and agitated by blowing-gas while cooling, so as to promote crystal growing, then the slag is water crushed. No expensive apparatus is required in this process, and yet it offers water-crushed slag which is highly substitutable for natural sand.
CONSTITUTION: Molten slag 1 from a blast furnace is moved into a proper heat- resistant container such as ladle 2 for bubbling treatment. Bubbling is treated such that a gas such as N2, air and steam is jetted from lead edges of heat-resistant bubbling tubes 4a, 4b connected to gas hoses 6a, 6b. To be more effective, the bubbling tubes 4a, 4b may be supported by guide rollers 5a, 5b so as to make reciprocating motion as shown by arrows. This process results in promoted cooling rate, homogenized dispersion of generated nucleus into the molten slag, uniform crystal growing and increased ratio of crystal content. Further effect is achieved by incorporating inoculation agent into the blowing gas to be jetted into the molten slag 1.
COPYRIGHT: (C)1979,JPO&Japio
JP13497977A 1977-11-09 1977-11-09 High blast furnce water crush slag containg crystalline Pending JPS5467593A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13497977A JPS5467593A (en) 1977-11-09 1977-11-09 High blast furnce water crush slag containg crystalline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13497977A JPS5467593A (en) 1977-11-09 1977-11-09 High blast furnce water crush slag containg crystalline

Publications (1)

Publication Number Publication Date
JPS5467593A true JPS5467593A (en) 1979-05-31

Family

ID=15141071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13497977A Pending JPS5467593A (en) 1977-11-09 1977-11-09 High blast furnce water crush slag containg crystalline

Country Status (1)

Country Link
JP (1) JPS5467593A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2471963A4 (en) * 2009-12-30 2017-05-31 Hyundai Steel Company Method and apparatus for recovering valuable metals from slag and for producing multifunctional aggregates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2471963A4 (en) * 2009-12-30 2017-05-31 Hyundai Steel Company Method and apparatus for recovering valuable metals from slag and for producing multifunctional aggregates

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