FR2096835A1 - Treating fine granulate - esp ores, in moving gas stream - Google Patents

Treating fine granulate - esp ores, in moving gas stream

Info

Publication number
FR2096835A1
FR2096835A1 FR7024828A FR7024828A FR2096835A1 FR 2096835 A1 FR2096835 A1 FR 2096835A1 FR 7024828 A FR7024828 A FR 7024828A FR 7024828 A FR7024828 A FR 7024828A FR 2096835 A1 FR2096835 A1 FR 2096835A1
Authority
FR
France
Prior art keywords
ores
esp
gas stream
gas
moving 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
FR7024828A
Other languages
French (fr)
Other versions
FR2096835B1 (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.)
DO NI
Original Assignee
DO NI
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 DO NI filed Critical DO NI
Priority to FR7024828A priority Critical patent/FR2096835A1/en
Publication of FR2096835A1 publication Critical patent/FR2096835A1/en
Application granted granted Critical
Publication of FR2096835B1 publication Critical patent/FR2096835B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
    • F26B17/101—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers the drying enclosure having the shape of one or a plurality of shafts or ducts, e.g. with substantially straight and vertical axis
    • F26B17/102—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers the drying enclosure having the shape of one or a plurality of shafts or ducts, e.g. with substantially straight and vertical axis with material recirculation, classifying or disintegrating means
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A thermal and chemical treatment method for granulate less than 0.5 mm, e.g. for metallising iron ores, in which the material is both conveyed and treated by a gas, consists of effecting partial treatment of the material during conveying by the gas, then classifying the material according to grain size by gas dynamic effect, then completing treatment of the material in contraflow to the gas.
FR7024828A 1970-07-03 1970-07-03 Treating fine granulate - esp ores, in moving gas stream Granted FR2096835A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7024828A FR2096835A1 (en) 1970-07-03 1970-07-03 Treating fine granulate - esp ores, in moving gas stream

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7024828A FR2096835A1 (en) 1970-07-03 1970-07-03 Treating fine granulate - esp ores, in moving gas stream

Publications (2)

Publication Number Publication Date
FR2096835A1 true FR2096835A1 (en) 1972-03-03
FR2096835B1 FR2096835B1 (en) 1973-11-16

Family

ID=9058261

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7024828A Granted FR2096835A1 (en) 1970-07-03 1970-07-03 Treating fine granulate - esp ores, in moving gas stream

Country Status (1)

Country Link
FR (1) FR2096835A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2096835B1 (en) 1973-11-16

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