JPS5458699A - Production of granulated slag powder - Google Patents

Production of granulated slag powder

Info

Publication number
JPS5458699A
JPS5458699A JP12511977A JP12511977A JPS5458699A JP S5458699 A JPS5458699 A JP S5458699A JP 12511977 A JP12511977 A JP 12511977A JP 12511977 A JP12511977 A JP 12511977A JP S5458699 A JPS5458699 A JP S5458699A
Authority
JP
Japan
Prior art keywords
granulated slag
mill
slag
water
dryer
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
JP12511977A
Other languages
Japanese (ja)
Inventor
Ryoichi Oyamada
Takashige Kurata
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 Chemical and Materials Co Ltd
Original Assignee
Nippon Steel Chemical Co 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 Nippon Steel Chemical Co Ltd filed Critical Nippon Steel Chemical Co Ltd
Priority to JP12511977A priority Critical patent/JPS5458699A/en
Publication of JPS5458699A publication Critical patent/JPS5458699A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • 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
    • C21B2400/028—Methods of cooling or quenching molten slag with the permanent addition of cooled slag or other solids
    • 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
    • C21B2400/032—Separating slag from liquid, e.g. from water, after quenching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To produce granulated slag powder with enhanced thermal efficiency by adding wet granulated slag to dry granulated slag obtd. by drying in a usual process, followed by grinding. CONSTITUTION:Apart from feed to dryer 2 by a table feeder at the lower part of hopper 1, wet granulated slag is fed onto blet conveyer 7, dropped, mixed with dry granulated slag of 0.5% water content from dryer 2, and supplied to mill 10 through hopper 9. In order to ensure the heat required to evaporate water contained in the slag, the lowest limit of the temp. of the material in mill 10 should be set to 100 deg.C. The water content (total amt. of water/total wt. of material) of the slag is regulated up to 3%, pref. 1-2.5% at the time of charging into mill 10. Accordingly, cooling water supplied from feed pipe 11 into mill 10 becomes unnecessary and fuel for drying can be saves corresponding to the amt. of the wet granulated slag added.
JP12511977A 1977-10-20 1977-10-20 Production of granulated slag powder Pending JPS5458699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12511977A JPS5458699A (en) 1977-10-20 1977-10-20 Production of granulated slag powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12511977A JPS5458699A (en) 1977-10-20 1977-10-20 Production of granulated slag powder

Publications (1)

Publication Number Publication Date
JPS5458699A true JPS5458699A (en) 1979-05-11

Family

ID=14902306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12511977A Pending JPS5458699A (en) 1977-10-20 1977-10-20 Production of granulated slag powder

Country Status (1)

Country Link
JP (1) JPS5458699A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108220511A (en) * 2018-01-17 2018-06-29 安徽马钢工程技术集团有限公司 Filter method Slag treatment method in a kind of In The Sub-mergedfurnace of The Ferroalloys bottom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108220511A (en) * 2018-01-17 2018-06-29 安徽马钢工程技术集团有限公司 Filter method Slag treatment method in a kind of In The Sub-mergedfurnace of The Ferroalloys bottom
CN108220511B (en) * 2018-01-17 2020-04-14 马钢集团设计研究院有限责任公司 Ferroalloy submerged arc furnace bottom filtering method slag treatment method

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