JPS572807A - Crushing method for blast furnace molten slag - Google Patents

Crushing method for blast furnace molten slag

Info

Publication number
JPS572807A
JPS572807A JP7724980A JP7724980A JPS572807A JP S572807 A JPS572807 A JP S572807A JP 7724980 A JP7724980 A JP 7724980A JP 7724980 A JP7724980 A JP 7724980A JP S572807 A JPS572807 A JP S572807A
Authority
JP
Japan
Prior art keywords
molten slag
slag
crushed
spout
metal
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
JP7724980A
Other languages
Japanese (ja)
Inventor
Akira Takano
Kazuhiro Nagano
Kenichi Okura
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.)
RASA SHOJI KK
Rasa Corp
Original Assignee
RASA SHOJI KK
Rasa 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 RASA SHOJI KK, Rasa Corp filed Critical RASA SHOJI KK
Priority to JP7724980A priority Critical patent/JPS572807A/en
Publication of JPS572807A publication Critical patent/JPS572807A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Disintegrating Or Milling (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To economically produce the hard crushed slag of uniform quality by spreading molten slag thinly to a flat shape and dropping the same by means of a molten slag spout made of metal of an upward facing U-shape in section and allowing the same to contact the cooling fluid which is being injected from a blowing device. CONSTITUTION:While a molten slag spout 1 made of metal having an upward facing U-shaped section is being cooled by passing a cooling medium such as water in the hollow part 1a thereof, the molten metal 4 discharged from a blast furnace or the like is spread thinly to a flat shape and is flowed out by the spout 1. With this outflowing state held maintained, the molten slag 4 is dropped to the front surface part 2a side of a blowing device 2, and cooling fluid by water, air or the like is injected through injection holes 3, whereby the molten slag 4 is quickly cooled and crushed. The crushed slag is granular hard crushed slag which is recovered after dehydration.
JP7724980A 1980-06-10 1980-06-10 Crushing method for blast furnace molten slag Pending JPS572807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7724980A JPS572807A (en) 1980-06-10 1980-06-10 Crushing method for blast furnace molten slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7724980A JPS572807A (en) 1980-06-10 1980-06-10 Crushing method for blast furnace molten slag

Publications (1)

Publication Number Publication Date
JPS572807A true JPS572807A (en) 1982-01-08

Family

ID=13628576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7724980A Pending JPS572807A (en) 1980-06-10 1980-06-10 Crushing method for blast furnace molten slag

Country Status (1)

Country Link
JP (1) JPS572807A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112774768A (en) * 2020-12-10 2021-05-11 黎石英 Amplitude formula fish scale milling equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112774768A (en) * 2020-12-10 2021-05-11 黎石英 Amplitude formula fish scale milling equipment

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