JPS5534626A - Treating apparatus for metallurgical molten slag - Google Patents

Treating apparatus for metallurgical molten slag

Info

Publication number
JPS5534626A
JPS5534626A JP10555878A JP10555878A JPS5534626A JP S5534626 A JPS5534626 A JP S5534626A JP 10555878 A JP10555878 A JP 10555878A JP 10555878 A JP10555878 A JP 10555878A JP S5534626 A JPS5534626 A JP S5534626A
Authority
JP
Japan
Prior art keywords
cooling
slag
molten slag
discs
gas
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
JP10555878A
Other languages
Japanese (ja)
Other versions
JPS5723191B2 (en
Inventor
Motohiko Iizuka
Genji Nakatani
Akitoshi Ogoshi
Jiro Konishi
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP10555878A priority Critical patent/JPS5534626A/en
Publication of JPS5534626A publication Critical patent/JPS5534626A/en
Publication of JPS5723191B2 publication Critical patent/JPS5723191B2/ja
Granted 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
    • C21B2400/026—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
    • C21B2400/052—Apparatus features including rotating parts
    • 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
    • C21B2400/052—Apparatus features including rotating parts
    • C21B2400/054—Disc-shaped or conical parts for cooling, dispersing or atomising of molten slag rotating along vertical axis
    • 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
    • C21B2400/064—Thermally-conductive removable bodies, e.g. balls
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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)
  • Furnace Details (AREA)

Abstract

PURPOSE:To recover solidified slag and to utilize a large quantity of heat kept in the molten slag, by cooling the molten slag adhered to a number of metallic discs, which rotate and partly immerse thermselves in the molten slag, with a cooling gas in order to recover the slag, and by delivering the cooling gas having been heated to a high temp. to a waste heat boiler. CONSTITUTION:A rotary cooling means 8 having a number of metal discs 13 rotates while immersing itself partly in molten slag 7 contained in a vessel 6. The molten slag 7 adheres to the discs 13 on both sides and solidifies, in add., cooled quickly with a cooling gas such as air etc. which is delivered by a blower 20, passing through a pipe line 21, cooling wind tunnels 19, 18, and the space 12 between the cooling discs 13. The slag having been cooled is scraped off by a scraping blade 14 and is transferred through a hopper 15, a feeder 16, to rolls 17, where it is crushed suitably, and is utilized for aggregate etc. On the other hand, the cooling gas having been heated to a high temp. while cooling the slag is fed through dust collector 23 to a waste heat boiler 24, where heat is recovered from the gas, and is returned to the blower 20 once again.
JP10555878A 1978-08-31 1978-08-31 Treating apparatus for metallurgical molten slag Granted JPS5534626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10555878A JPS5534626A (en) 1978-08-31 1978-08-31 Treating apparatus for metallurgical molten slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10555878A JPS5534626A (en) 1978-08-31 1978-08-31 Treating apparatus for metallurgical molten slag

Publications (2)

Publication Number Publication Date
JPS5534626A true JPS5534626A (en) 1980-03-11
JPS5723191B2 JPS5723191B2 (en) 1982-05-17

Family

ID=14410868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10555878A Granted JPS5534626A (en) 1978-08-31 1978-08-31 Treating apparatus for metallurgical molten slag

Country Status (1)

Country Link
JP (1) JPS5534626A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574222A (en) * 1980-06-11 1982-01-09 Nippon Kokan Kk <Nkk> Rotary drum for molten slag processing
JPS57127789A (en) * 1981-01-30 1982-08-09 Nippon Kokan Kk Apparatus for making quenched slag
JPS5872879A (en) * 1981-10-26 1983-04-30 日本鋼管株式会社 Rapidly solidified slag production equipment
KR100896580B1 (en) * 2002-11-15 2009-05-07 주식회사 포스코 Sensible heat recovery device for molten slag

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574222A (en) * 1980-06-11 1982-01-09 Nippon Kokan Kk <Nkk> Rotary drum for molten slag processing
JPS57127789A (en) * 1981-01-30 1982-08-09 Nippon Kokan Kk Apparatus for making quenched slag
JPS5872879A (en) * 1981-10-26 1983-04-30 日本鋼管株式会社 Rapidly solidified slag production equipment
KR100896580B1 (en) * 2002-11-15 2009-05-07 주식회사 포스코 Sensible heat recovery device for molten slag

Also Published As

Publication number Publication date
JPS5723191B2 (en) 1982-05-17

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