FR3136541B1 - microwave and fluidized bed calcination furnace - Google Patents
microwave and fluidized bed calcination furnace Download PDFInfo
- 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
Links
- 238000001354 calcination Methods 0.000 title abstract 3
- 239000007789 gas Substances 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 4
- 238000009792 diffusion process Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
Classifications
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- 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.
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)
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 |
-
2022
- 2022-06-14 FR FR2205761A patent/FR3136541B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
FR3136541A1 (en) | 2023-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 2 |
|
PLSC | Publication of the preliminary search report |
Effective date: 20231215 |