JPS56142806A - Method and apparatus for producing spherical expanded slag - Google Patents

Method and apparatus for producing spherical expanded slag

Info

Publication number
JPS56142806A
JPS56142806A JP4722980A JP4722980A JPS56142806A JP S56142806 A JPS56142806 A JP S56142806A JP 4722980 A JP4722980 A JP 4722980A JP 4722980 A JP4722980 A JP 4722980A JP S56142806 A JPS56142806 A JP S56142806A
Authority
JP
Japan
Prior art keywords
gutter
slag
flow
molten
spherical expanded
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
JP4722980A
Other languages
Japanese (ja)
Other versions
JPS591227B2 (en
Inventor
Takeshi Koga
Ikuo Uozumi
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.)
Hamada Heavy Industries Co Ltd
Original Assignee
Hamada Heavy Industries 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 Hamada Heavy Industries Co Ltd filed Critical Hamada Heavy Industries Co Ltd
Priority to JP55047229A priority Critical patent/JPS591227B2/en
Publication of JPS56142806A publication Critical patent/JPS56142806A/en
Publication of JPS591227B2 publication Critical patent/JPS591227B2/en
Expired 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
    • C21B3/08—Cooling 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
    • C21B2400/026—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
    • C21B2400/05—Apparatus features
    • C21B2400/062—Jet nozzles or pressurised fluids for cooling, fragmenting or atomising 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
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/072—Tanks to collect the slag, e.g. water tank

Landscapes

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

Abstract

PURPOSE:To produce the spherical expanded slag having low surface porosity effectively and safely by a method wherein molten blast furnace slag is caused to flow into a curved gutter placed in a water tank and is forcibly scattered through an opening of the trough while injecting water into the gutter through holes provided in the gutter. CONSTITUTION:The blast furnace slag is caused to flow from a hopper 2 into the vertical curved gutter 7 placed in the water tank 11 while adjusting the flow rate, flow velocity and flow shape of the slag in a predetermined manner by an outflow rate regulating damper 4, a horizontal gutter 5 and a flow rate (thickness) regulating plate 6. The molten slag flowing into the gutter 7 flows down while receiving a predetermined amount of water injected through the inflow holes 8 provided in the gutter 7 at regular spacings, and the slag reaches the opening 10 at the lower part of the gutter 7 with the minimum heat content for remaining in the molten state. The slag is then scattered into the air as particles by a centrifugal blower 14 provided storing place while being spherically shaped by surface tension and being solidified. The spherical expanded slag obtained by the method is utilized effectively as lightweight aggregate or the like.
JP55047229A 1980-04-10 1980-04-10 Method and device for producing spherical expanded slag Expired JPS591227B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55047229A JPS591227B2 (en) 1980-04-10 1980-04-10 Method and device for producing spherical expanded slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55047229A JPS591227B2 (en) 1980-04-10 1980-04-10 Method and device for producing spherical expanded slag

Publications (2)

Publication Number Publication Date
JPS56142806A true JPS56142806A (en) 1981-11-07
JPS591227B2 JPS591227B2 (en) 1984-01-11

Family

ID=12769368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55047229A Expired JPS591227B2 (en) 1980-04-10 1980-04-10 Method and device for producing spherical expanded slag

Country Status (1)

Country Link
JP (1) JPS591227B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999022031A1 (en) * 1997-10-29 1999-05-06 'holderbank' Financiere Glarus Ag Method for granulating and grinding molten material and device for carrying out said method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999022031A1 (en) * 1997-10-29 1999-05-06 'holderbank' Financiere Glarus Ag Method for granulating and grinding molten material and device for carrying out said method
US6082640A (en) * 1997-10-29 2000-07-04 "Holderbank"Financiere Glarus Ag Method for granulating and grinding molten material and device for carrying out said method

Also Published As

Publication number Publication date
JPS591227B2 (en) 1984-01-11

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