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FR2404046A1 - Granulation of metallurgical slag - which is poured onto rotating drum using controlled conditions to obtain spherical granules - Google Patents

Granulation of metallurgical slag - which is poured onto rotating drum using controlled conditions to obtain spherical granules

Info

Publication number
FR2404046A1
FR2404046A1 FR7726318A FR7726318A FR2404046A1 FR 2404046 A1 FR2404046 A1 FR 2404046A1 FR 7726318 A FR7726318 A FR 7726318A FR 7726318 A FR7726318 A FR 7726318A FR 2404046 A1 FR2404046 A1 FR 2404046A1
Authority
FR
France
Prior art keywords
slag
drum
rotating drum
spherical granules
granulation
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
FR7726318A
Other languages
French (fr)
Other versions
FR2404046B1 (en
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 Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to FR7726318A priority Critical patent/FR2404046A1/en
Publication of FR2404046A1 publication Critical patent/FR2404046A1/en
Application granted granted Critical
Publication of FR2404046B1 publication Critical patent/FR2404046B1/fr
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
    • 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
    • C21B2400/052—Apparatus features including rotating parts
    • C21B2400/056—Drums whereby slag is poured on or in between
    • 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)
  • Manufacture Of Iron (AREA)
  • Furnace Details (AREA)

Abstract

The molten slag is accelerated to a desired speed and driven onto the non-wettable surface of a target, from which the slag granules bounce off in a desired direction. Pref. the slag is kept at a prescribed height (H) in a tundish or vessel, and then flows onto a rotating drum or disk at a specified distance (h) from the tundish outlet. When using a drum, the vertical slag stream is pref. displaced 10-20 degrees from the apex of a drum rotating on a horizontal axis. The slag stream may alternatively be directed into the bore of a cylinder from a tundish rotating inside the cylinder and filled to height (H'). The slag may be from blast-, flame-, or electric- furnaces or converters etc. Spherical granules with the strength of river sands can be obtd. by controlling parameters (H,h).
FR7726318A 1977-08-30 1977-08-30 Granulation of metallurgical slag - which is poured onto rotating drum using controlled conditions to obtain spherical granules Granted FR2404046A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7726318A FR2404046A1 (en) 1977-08-30 1977-08-30 Granulation of metallurgical slag - which is poured onto rotating drum using controlled conditions to obtain spherical granules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7726318A FR2404046A1 (en) 1977-08-30 1977-08-30 Granulation of metallurgical slag - which is poured onto rotating drum using controlled conditions to obtain spherical granules

Publications (2)

Publication Number Publication Date
FR2404046A1 true FR2404046A1 (en) 1979-04-20
FR2404046B1 FR2404046B1 (en) 1980-10-17

Family

ID=9194872

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726318A Granted FR2404046A1 (en) 1977-08-30 1977-08-30 Granulation of metallurgical slag - which is poured onto rotating drum using controlled conditions to obtain spherical granules

Country Status (1)

Country Link
FR (1) FR2404046A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR325576A (en) * 1902-10-24 1903-05-02 Lessing Wilhelm Process for spraying slag from liquid and incandescent blast furnaces
US3310391A (en) * 1962-08-31 1967-03-21 Flex O Lite Mfg Corp Method of and apparatus for production of glass beads by use of a rotating wheel
DE1471464A1 (en) * 1962-09-14 1969-07-10 Steinmueller Gmbh L & C Process and device for the extraction of iron-containing slag in lump form
DE1916230A1 (en) * 1969-03-29 1972-02-24 Schmitz Rolf Guenther Granulation of high melting pt materials - by impact dispersion
DE2211682A1 (en) * 1972-03-10 1973-09-20 Metallgesellschaft Ag Granulation of liquid slags - using high speed centrifugal plate in trap without contact with water

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR325576A (en) * 1902-10-24 1903-05-02 Lessing Wilhelm Process for spraying slag from liquid and incandescent blast furnaces
US3310391A (en) * 1962-08-31 1967-03-21 Flex O Lite Mfg Corp Method of and apparatus for production of glass beads by use of a rotating wheel
DE1471464A1 (en) * 1962-09-14 1969-07-10 Steinmueller Gmbh L & C Process and device for the extraction of iron-containing slag in lump form
DE1916230A1 (en) * 1969-03-29 1972-02-24 Schmitz Rolf Guenther Granulation of high melting pt materials - by impact dispersion
DE2211682A1 (en) * 1972-03-10 1973-09-20 Metallgesellschaft Ag Granulation of liquid slags - using high speed centrifugal plate in trap without contact with water

Also Published As

Publication number Publication date
FR2404046B1 (en) 1980-10-17

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Legal Events

Date Code Title Description
ST Notification of lapse