DE20200186U1 - Rotary vacuum tray dryer - Google Patents
Rotary vacuum tray dryerInfo
- Publication number
- DE20200186U1 DE20200186U1 DE20200186U DE20200186U DE20200186U1 DE 20200186 U1 DE20200186 U1 DE 20200186U1 DE 20200186 U DE20200186 U DE 20200186U DE 20200186 U DE20200186 U DE 20200186U DE 20200186 U1 DE20200186 U1 DE 20200186U1
- Authority
- DE
- Germany
- Prior art keywords
- vacuum
- dryer
- product
- microwave
- chamber
- 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.)
- Expired - Lifetime
Links
- 230000005855 radiation Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- 229920002449 FKM Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/048—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum in combination with heat developed by electro-magnetic means, e.g. microwave energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/18—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Description
Gebrauchsmusteranmeldung Heindl: Vakuumtrocknei· 04.01.2002 1Utility model application Heindl: Vacuum drying· 04.01.2002 1
Gebrauchsmusteranmeldung
Albert Johann Heindl und Dr.-Ing. Albert Georg Walter HeindlUtility model application
Albert Johann Heindl and Dr.-Ing. Albert Georg Walter Heindl
Rotations- VakuumhordentrocknerRotary vacuum tray dryer
Stand der Technik und ProblemState of the art and problem
Vorbekannt sind kontinuierliche oder halbkontinuierliche Einbandtrockner in horizontalen Vakuumröhren mit kreisförmigem Querschnitt zur mikrowellenunterstützten Vakuumtrocknung von Lebensmitteln oder Pharmazeutika. Dabei werden Teflonbänder oder Horden, die auf Bändern laufen zum Transport des Produktes durch die Anlage eingesetzt. Ferner finden in stationären Anlagen Drehteller zur Produktbewegung Anwendung oder es werden bewegliche Antennen bei ruhenden Produkthorden eingesetzt. Somit wird durch geeignete Vorrichtungen eine zweidimensionale Produktoder Antennenbewegung in jedem Fall angewandt, um den Mikrowellenenergieeintrag in das Produkt zu vergleichmässigen. Bei hohen Mikrowellenleistungen kann es jedoch ) zu lokalen Überhitzungen kommen.Continuous or semi-continuous single-belt dryers in horizontal vacuum tubes with a circular cross-section are already known for microwave-assisted vacuum drying of food or pharmaceuticals. Teflon belts or trays that run on belts are used to transport the product through the system. In addition, turntables are used in stationary systems to move the product, or movable antennas are used for stationary product trays. Thus, using suitable devices, a two-dimensional product or antenna movement is always used to even out the microwave energy input into the product. However, at high microwave powers, local overheating can occur.
Lösung des Problemsthe solution of the problem
Die Neuheit führt zu einer Lösung des Überhitzungsproblems, indem über eine Drehvorrichtung mit Horden das Produkt dreidimensional in einem Vieleck-Vakuum-Behälter mit horizontal und schräg zur Horizontalen aufgesetzten Mikrowellenröhren und Infrarotlampen rotiert, und somit Zonen mit unterschiedlichen Wellenmustern und mit hoher und niedriger Energiedichte räumlich durchläuft. Dadurch wird ein gleichmäßiger Energieeintrag in das Produkt über die Zeit gesehen verwirklicht. Uberhitzungen durch lokal hohe Energiedichten bzw. durch stehende Wellen werden vermieden. Im Produkt können über Wärmeleitung Temperaturspitzen abgebaut werden können. ■ · The innovation leads to a solution to the overheating problem by using a rotating device with trays to rotate the product three-dimensionally in a polygonal vacuum container with microwave tubes and infrared lamps placed horizontally and at an angle to the horizontal, and thus spatially passes through zones with different wave patterns and with high and low energy densities. This ensures that the energy is introduced into the product evenly over time. Overheating due to locally high energy densities or standing waves is avoided. Temperature peaks can be reduced in the product via heat conduction . ■ ·
Beschreibung (Ausführungsbeispiel Fig. 1)Description (Example Fig. 1)
Kunststoffhorden (z.B. mit Abmessungen von 100 &khgr; 50 &khgr; 10 cm) aus Teflon oder Polypropylen mit perforiertem Boden 1 dienen zur Aufnahme des Produktes. Über eine seitliche Öffnungsklappe 2 der Vieleck-Vakuumkammer 3 kann die gefüllte Horde in drehbar gelagerte Rahmen 4 eines ebenfalls aus Kunststoff bestehenden Drehgestelles 5 eingelegt werden. Durch eine über einen Drehwinkel vorgebbare Drehbewegung wird der nächste Rahmen vor die Öffnung gefahren und die nächste gefüllte Horde eingelegt. Dieser Vorgang wiederholt sich solange bis alle gefüllten Horden auf dem Drehgestell platziert sind. Die Klappe ist mit einem Endschalter 6 versehen, der bei kleinstem Öffnungswinkel sofort die Mikrowellenenergiezufuhr unterbricht. Die klein gehaltenen und damit gegenüber Mikrowellenleckstrahlung leicht abzudichtenden Klappe wird mit einer außenliegenden Vakuumdichtung (Material Viton) und einer Mikrowellendichtung (Material Silikonkern mit Mantelgestrick aus nichtrostendem Edelstahl) versehen. Eine unterhalb des Trockners angebrachte Vakuumpumpe 7, z.B. eine Drehschieber- oder eine Flüssigkeitsringvakuumpumpe saugt den Wasserdampf und Leckluft ab. Mikrowellenröhren 8, welche die Mikrowellenenergie bei einer Frequenz von 2.450 oder 915 MHz erzeugen, werden die auf der Trockneroberseite schräg zur Horizontalen angebracht. Über Hohleiterstücke 9 mit einem inneren Querschnitt von 86 &khgr; 43 mm sowie spezielle, vakuumabgedichtete Hornstrahler 10 mit einer Abstrahlöffnung von z.B. 200 &khgr; 200 mm wird die Energie in die Vakuumkammer eingestrahlt. Die Aufweitung der Hornstrahler sorgt für eine Verringerung der Feldstärkedichten im Bereich des Überganges von Atmosphärendruck auf Vakuum, womit eine:erJTfJhte 8fch6Theitgegenüber.GaSio|1featiön|unä Überschlägen verbundenPlastic trays (e.g. with dimensions of 100 x 50 x 10 cm) made of Teflon or polypropylene with a perforated base 1 are used to hold the product. The filled tray can be placed in the rotating frame 4 of a rotating frame 5, which is also made of plastic, via a side opening flap 2 of the polygonal vacuum chamber 3. The next frame is moved in front of the opening by means of a rotating movement that can be set using an angle of rotation and the next filled tray is placed in. This process is repeated until all the filled trays have been placed on the rotating frame. The flap is equipped with a limit switch 6 that immediately interrupts the microwave energy supply at the smallest opening angle. The flap, which is kept small and can therefore be easily sealed against microwave leakage radiation, is provided with an external vacuum seal (material: Viton) and a microwave seal (material: silicone core with a knitted sheath made of stainless steel). A vacuum pump 7, e.g. a rotary vane or liquid ring vacuum pump, installed underneath the dryer sucks out the water vapor and leakage air. Microwave tubes 8, which generate microwave energy at a frequency of 2,450 or 915 MHz, are installed on the top of the dryer at an angle to the horizontal. The energy is radiated into the vacuum chamber via waveguide sections 9 with an inner cross-section of 86 x 43 mm and special, vacuum-sealed horn radiators 10 with a radiation opening of e.g. 200 x 200 mm. The widening of the horn radiators ensures a reduction in the field strength densities in the area of the transition from atmospheric pressure to vacuum, which results in a higher resistance to gas-saturation and arcing.
Gebrauchsmusteraltmeldung Heindl: Vakuumtrockner 04.01.2002 2Old utility model notification Heindl: Vacuum dryer 04.01.2002 2
■ ' - ■ ■ >(j ■ ' - ■ ■ >(j
ist. Dadurch wird das Vakuumfenster vor thermischer Beschädigung geschützt. Das Vakuumfenster im Hornstrahler kann entweder aus Teflon, Quarzglas oder Aluminiumoxid ausgeführt sein. Ein zwischen den Magnetrons (Mikrowellenröhren) aufgesetzter Infrarot-Oberflächentemperatursensor 11 misst die Oberflächentemperatur des Produktes. Durch die horizontale und schräge Anordnung der Magnetronköpfe zu den Horden sowie durch die Vieleckgestalt der Kammer kommt es zu Mehrfachreflexionen im Trockner und damit zur Ausbildung einer Vielzahl von zeitlich sich verändernden Wellenmustern und Energiedichten, durch die das Produkt geführt wird. Dies führt neben der räumlichen Bewegung zusätzlich zu einer zeitlich vergleichmäßigten Mikrowellenenergieverteilung im Produkt. Infrarotstrahler 12 mit kürzen Aufheizzeiten werden neben die Magnetronköpfe montiert (Quarzglas-Infrarotstrahler im Mittelwellenbereich von 2-4 Micrometer) und führen zusätzlich Energie über Strahlung zu. Als Vakuumabdichtung wird ein Quarzglasfenster eingebaut. Die Horden-Drehvorrichtung wird über einen Antriebsmotor und Wellenkupplung mit Vakuumdurchführung räumlich bewegt. Durch Schwerkrafteinfluss bleiben die im Gestell drehbar gelagerten Horden in Ihrer horizontalen Position. Der bei der Trocknung entstehende Wasserdampf wird von der Vakuumpumpe abgesaugt und entweder in der Wasserringpumpe mit Zusatzkühlwasser oder in einem Rohrbündelkondensator kondensiert und zeitgesteuert über Magnetventile und einer Kondensatvorlage ausgeschleust.This protects the vacuum window from thermal damage. The vacuum window in the horn radiator can be made of either Teflon, quartz glass or aluminum oxide. An infrared surface temperature sensor 11 placed between the magnetrons (microwave tubes) measures the surface temperature of the product. The horizontal and slanted arrangement of the magnetron heads to the trays and the polygonal shape of the chamber result in multiple reflections in the dryer and thus in the formation of a large number of wave patterns and energy densities that change over time, through which the product is passed. In addition to the spatial movement, this also leads to a temporally even distribution of microwave energy in the product. Infrared radiators 12 with short heat-up times are mounted next to the magnetron heads (quartz glass infrared radiators in the medium wave range of 2-4 micrometers) and supply additional energy via radiation. A quartz glass window is installed as a vacuum seal. The tray rotating device is moved spatially via a drive motor and shaft coupling with vacuum feedthrough. Gravity keeps the racks, which are rotatably mounted in the frame, in their horizontal position. The water vapor produced during drying is sucked off by the vacuum pump and condensed either in the water ring pump with additional cooling water or in a tube bundle condenser and discharged at a timed interval via solenoid valves and a condensate trap.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20200186U DE20200186U1 (en) | 2002-01-08 | 2002-01-08 | Rotary vacuum tray dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20200186U DE20200186U1 (en) | 2002-01-08 | 2002-01-08 | Rotary vacuum tray dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE20200186U1 true DE20200186U1 (en) | 2002-05-02 |
Family
ID=7966335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE20200186U Expired - Lifetime DE20200186U1 (en) | 2002-01-08 | 2002-01-08 | Rotary vacuum tray dryer |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE20200186U1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010108930A3 (en) * | 2009-03-23 | 2011-01-27 | Engin Hasan Hueseyin | Laboratory type quick film drying oven |
| CN103353214A (en) * | 2013-03-31 | 2013-10-16 | 吉林省农业机械研究院 | Microwave vacuum continuous drying machine for Chinese herbal medicine |
| IT201600105328A1 (en) * | 2016-10-19 | 2018-04-19 | Steelco Spa | DRYING EQUIPMENT |
| CN108106346A (en) * | 2017-12-30 | 2018-06-01 | 郑州默尔电子信息技术有限公司 | A kind of miscellaneous recovery type heat baking oven of energy saving filter |
| CN110307709A (en) * | 2019-05-21 | 2019-10-08 | 安徽明洋电子有限公司 | A kind of light-emitting diode forming processing roasting plant and its working method |
| CN111023760A (en) * | 2019-12-06 | 2020-04-17 | 杨家荣 | Rotary drying device for flaky food |
| CN112254438A (en) * | 2020-09-30 | 2021-01-22 | 金陵科技学院 | Rotating mechanism for vacuum drying oven, vacuum drying oven and vacuum drying method |
| DE102020126210A1 (en) | 2020-08-25 | 2022-03-03 | Püschner GmbH & Co. Kommanditgesellschaft | Plant and method for microwave vacuum drying, in particular microwave freeze drying, of products with, in particular pharmaceutical, active ingredients in containers, such as vials, carpules, bottles, pre-filled syringes, preferably in batch operation |
-
2002
- 2002-01-08 DE DE20200186U patent/DE20200186U1/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010108930A3 (en) * | 2009-03-23 | 2011-01-27 | Engin Hasan Hueseyin | Laboratory type quick film drying oven |
| US8640357B2 (en) | 2009-03-23 | 2014-02-04 | Hasan Huseyin Engin | Laboratory type quick film drying oven |
| CN103353214A (en) * | 2013-03-31 | 2013-10-16 | 吉林省农业机械研究院 | Microwave vacuum continuous drying machine for Chinese herbal medicine |
| IT201600105328A1 (en) * | 2016-10-19 | 2018-04-19 | Steelco Spa | DRYING EQUIPMENT |
| EP3312534A1 (en) * | 2016-10-19 | 2018-04-25 | Steelco S.p.A. | Drying appartus |
| CN108106346A (en) * | 2017-12-30 | 2018-06-01 | 郑州默尔电子信息技术有限公司 | A kind of miscellaneous recovery type heat baking oven of energy saving filter |
| CN110307709A (en) * | 2019-05-21 | 2019-10-08 | 安徽明洋电子有限公司 | A kind of light-emitting diode forming processing roasting plant and its working method |
| CN110307709B (en) * | 2019-05-21 | 2020-09-29 | 安徽明洋电子有限公司 | Baking equipment for forming and processing light-emitting diode and working method thereof |
| CN111023760A (en) * | 2019-12-06 | 2020-04-17 | 杨家荣 | Rotary drying device for flaky food |
| DE102020126210A1 (en) | 2020-08-25 | 2022-03-03 | Püschner GmbH & Co. Kommanditgesellschaft | Plant and method for microwave vacuum drying, in particular microwave freeze drying, of products with, in particular pharmaceutical, active ingredients in containers, such as vials, carpules, bottles, pre-filled syringes, preferably in batch operation |
| DE102020126210B4 (en) | 2020-08-25 | 2022-08-25 | Püschner GmbH & Co. Kommanditgesellschaft | Plant and method for microwave vacuum drying, in particular microwave freeze drying, of products with, in particular pharmaceutical, active ingredients in containers, such as vials, carpules, bottles, pre-filled syringes, preferably in batch operation |
| CN112254438A (en) * | 2020-09-30 | 2021-01-22 | 金陵科技学院 | Rotating mechanism for vacuum drying oven, vacuum drying oven and vacuum drying method |
| CN112254438B (en) * | 2020-09-30 | 2022-03-08 | 金陵科技学院 | Rotating mechanism for vacuum drying oven, vacuum drying oven and vacuum drying method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 20020606 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20050722 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20080704 |
|
| R081 | Change of applicant/patentee |
Owner name: RIELA - GETREIDETECHNIK KARL-HEINZ KNOOP E.K., DE Free format text: FORMER OWNER: ALBERT GEORG WALTER HEINDL,ALBERT JOHANN HEINDL, , DE Effective date: 20090310 |
|
| R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20100112 |
|
| R071 | Expiry of right | ||
| R071 | Expiry of right | ||
| R082 | Change of representative |
Representative=s name: PATENTANWAELTE OLBRICHT, BUCHHOLD, KEULERTZ PA, DE |