FR3136541B1 - microwave and fluidized bed calcination furnace - Google Patents

microwave and fluidized bed calcination furnace Download PDF

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Publication number
FR3136541B1
FR3136541B1 FR2205761A FR2205761A FR3136541B1 FR 3136541 B1 FR3136541 B1 FR 3136541B1 FR 2205761 A FR2205761 A FR 2205761A FR 2205761 A FR2205761 A FR 2205761A FR 3136541 B1 FR3136541 B1 FR 3136541B1
Authority
FR
France
Prior art keywords
fluidized bed
microwave
products
calcination furnace
treated
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.)
Active
Application number
FR2205761A
Other languages
French (fr)
Other versions
FR3136541A1 (en
Inventor
Frédéric Vandenbussche
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.)
Innovation & Dev Co
Original Assignee
Innovation & Dev Co
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 Innovation & Dev Co filed Critical Innovation & Dev Co
Priority to FR2205761A priority Critical patent/FR3136541B1/en
Publication of FR3136541A1 publication Critical patent/FR3136541A1/en
Application granted granted Critical
Publication of FR3136541B1 publication Critical patent/FR3136541B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B15/10—Arrangements of air or gas supply devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B15/14—Arrangements of heating devices
    • 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
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/10—Obtaining alkali metals
    • C22B26/12—Obtaining lithium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F27D2099/0028—Microwave heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

Four de calcination par micro-ondes et à lit fluidisé L’invention concerne un four de calcination par micro-ondes et à lit fluidisé comprenant une enceinte de chauffe (4) comprenant, en partie haute, une arrivée (8) de produits (P) à traiter et une sortie (10) pour évacuer les produits traités, et, en partie basse, une grille de diffusion (12) apte à supporter les produits admis dans l’enceinte, au moins un guide d’ondes (14) débouchant à l’intérieur de l’enceinte de chauffe et raccordé à un générateur de micro-ondes (18), un conduit d’admission d’air ou de gaz chauds (20) débouchant dans la partie basse de l’enceinte de chauffe et raccordé à un générateur de gaz chauds (22), des moyens (24) pour diffuser l’air ou les gaz chauds admis dans la partie basse de l’enceinte de chauffe en direction des produits à traiter afin de générer un lit fluidisé, un conduit de récupération de gaz chauds (26) s’ouvrant vers l’extérieur, et un conduit de vidange (19). Figure pour l’abrégé : Fig. 1.Microwave and fluidized bed calcination furnace The invention relates to a microwave and fluidized bed calcination furnace comprising a heating enclosure (4) comprising, in the upper part, an inlet (8) of products (P ) to be treated and an outlet (10) to evacuate the treated products, and, in the lower part, a diffusion grid (12) capable of supporting the products admitted into the enclosure, at least one wave guide (14) opening inside the heating enclosure and connected to a microwave generator (18), an air or hot gas intake conduit (20) opening into the lower part of the heating enclosure and connected to a hot gas generator (22), means (24) for diffusing the air or hot gases admitted into the lower part of the heating enclosure towards the products to be treated in order to generate a fluidized bed, a hot gas recovery conduit (26) opening outwards, and a drain conduit (19). Figure for abstract: Fig. 1.

FR2205761A 2022-06-14 2022-06-14 microwave and fluidized bed calcination furnace Active FR3136541B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2205761A FR3136541B1 (en) 2022-06-14 2022-06-14 microwave and fluidized bed calcination furnace

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2205761 2022-06-14
FR2205761A FR3136541B1 (en) 2022-06-14 2022-06-14 microwave and fluidized bed calcination furnace

Publications (2)

Publication Number Publication Date
FR3136541A1 FR3136541A1 (en) 2023-12-15
FR3136541B1 true FR3136541B1 (en) 2024-06-21

Family

ID=82595033

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2205761A Active FR3136541B1 (en) 2022-06-14 2022-06-14 microwave and fluidized bed calcination furnace

Country Status (1)

Country Link
FR (1) FR3136541B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA976925B (en) * 1996-08-06 1998-03-19 Emr Microwave Technology Corp Method and apparatus for optimization of energy coupling for microwave treatment of metal ores and concentrates in a microwave fluidized bed reactor.
AU721221B2 (en) * 1996-08-27 2000-06-29 Emr Microwave Technology Corporation Method for microwave induced oxidation of sulphidic ore material in fluidized bed without sulphur dioxide emissions
DE10260742A1 (en) * 2002-12-23 2004-07-08 Outokumpu Oyj Process and plant for the thermal treatment of granular solids in a fluidized bed
DE10260743B4 (en) * 2002-12-23 2008-05-15 Outokumpu Oyj Process and plant for the thermal treatment of granular solids in a fluidized bed

Also Published As

Publication number Publication date
FR3136541A1 (en) 2023-12-15

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Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20231215