FR2223931A1 - Tunnel oven for continuous HF treatment - is used for powdery or doughy materials transported through oven on conveyor - Google Patents
Tunnel oven for continuous HF treatment - is used for powdery or doughy materials transported through oven on conveyorInfo
- Publication number
- FR2223931A1 FR2223931A1 FR7311702A FR7311702A FR2223931A1 FR 2223931 A1 FR2223931 A1 FR 2223931A1 FR 7311702 A FR7311702 A FR 7311702A FR 7311702 A FR7311702 A FR 7311702A FR 2223931 A1 FR2223931 A1 FR 2223931A1
- Authority
- FR
- France
- Prior art keywords
- oven
- conveyor
- powdery
- continuous
- treatment
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
-
- 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
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/76—Prevention of microwave leakage, e.g. door sealings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/78—Arrangements for continuous movement of material
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Bakery Products And Manufacturing Methods Therefor (AREA)
Abstract
The oven heats the material by dielectric losses and employs high frequency current. The oven has waveguide attenuating channels at its inlet and outlet, through which the material on the conveyor passes, and which are connected to the protective shielding enclosing the high frequency generators. The length of each channel is between three and five times its diameter. The channels are preferably at an angle to the electric field set up by the high frequency generators.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7311702A FR2223931A1 (en) | 1973-03-30 | 1973-03-30 | Tunnel oven for continuous HF treatment - is used for powdery or doughy materials transported through oven on conveyor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7311702A FR2223931A1 (en) | 1973-03-30 | 1973-03-30 | Tunnel oven for continuous HF treatment - is used for powdery or doughy materials transported through oven on conveyor |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2223931A1 true FR2223931A1 (en) | 1974-10-25 |
FR2223931B3 FR2223931B3 (en) | 1975-10-24 |
Family
ID=9117217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7311702A Granted FR2223931A1 (en) | 1973-03-30 | 1973-03-30 | Tunnel oven for continuous HF treatment - is used for powdery or doughy materials transported through oven on conveyor |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2223931A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999013690A1 (en) * | 1997-09-08 | 1999-03-18 | Amana Company, L.P. | A microwave oven having an orthogonal electromagnetic seal |
WO2001004558A1 (en) * | 1999-07-07 | 2001-01-18 | Corning Incorporated | Apparatus and method for continuous microwave drying of ceramics |
-
1973
- 1973-03-30 FR FR7311702A patent/FR2223931A1/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999013690A1 (en) * | 1997-09-08 | 1999-03-18 | Amana Company, L.P. | A microwave oven having an orthogonal electromagnetic seal |
GB2332846A (en) * | 1997-09-08 | 1999-06-30 | Amana Company L P | A microwave oven having an orthogonal electromagnetic seal |
US5958278A (en) * | 1997-09-08 | 1999-09-28 | Amana Company, L.P. | Microwave oven having an orthogonal electromagnetic seal |
GB2332846B (en) * | 1997-09-08 | 2001-12-12 | Amana Company L P | A microwave oven having an orthogonal electromagnetic seal |
WO2001004558A1 (en) * | 1999-07-07 | 2001-01-18 | Corning Incorporated | Apparatus and method for continuous microwave drying of ceramics |
US6455826B1 (en) | 1999-07-07 | 2002-09-24 | Corning Incorporated | Apparatus and method for continuous microwave drying of ceramics |
Also Published As
Publication number | Publication date |
---|---|
FR2223931B3 (en) | 1975-10-24 |
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