DE1078712B - Gas-permeable electrode for the heat treatment of substances in an electrical high-frequency field - Google Patents
Gas-permeable electrode for the heat treatment of substances in an electrical high-frequency fieldInfo
- Publication number
- DE1078712B DE1078712B DEB54505A DEB0054505A DE1078712B DE 1078712 B DE1078712 B DE 1078712B DE B54505 A DEB54505 A DE B54505A DE B0054505 A DEB0054505 A DE B0054505A DE 1078712 B DE1078712 B DE 1078712B
- Authority
- DE
- Germany
- Prior art keywords
- gas
- permeable
- electrode
- permeable electrode
- heat 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims description 6
- 239000000126 substance Substances 0.000 title claims description 4
- 239000007789 gas Substances 0.000 claims description 5
- 230000005684 electric field Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 210000002105 tongue Anatomy 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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
- F26B3/343—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 in combination with convection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- 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
- H05B6/46—Dielectric heating
- H05B6/54—Electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Drying Of Gases (AREA)
Description
Gasdurchlässige Elektrode zur Wärmebehandlung von Stoffen im elektrischen Hochfrequenzfeld Es ist bekannt, Elektroden zur Trocknung im elektrischen Hochfrequenzfeld mit Löchern zu versehen, um den Brüden einen Durchtritt nach außen zu ermöglichen. Hierbei wird das elektrische Feld durch die Löcher unterbrochen. Da aber für die Wirkung des elektrischen Feldes eine bestimmte Elektrodenfläche notwendig ist, wird der Trockenapparat dadurch größer. Außerdem wirkt das elektrische Hochfrequenzfeld nicht mehr homogen, sondern gestört auf das Trockengut ein. Das gleiche gilt, wenn man das Hochfrequenzfeld nicht nur zur Trocknung, sondern auch zu anderen Wärmebehandlungen von Stoffen verwendet, z. B. zum Ausgasen, Kalzinieren, Polvmerisieren oder zur Durchführung von endothermen Reaktionen zwischen festen und gasförmigen oder dampfförmigen Stoffen.Gas-permeable electrode for the heat treatment of substances in the electrical High-frequency field It is known to have electrodes for drying in an electrical high-frequency field to be provided with holes to allow the vapors to pass through to the outside. Here the electric field is interrupted by the holes. But there for them Effect of the electric field a certain electrode area is necessary this makes the dryer larger. The high-frequency electric field also acts no longer homogeneous, but rather disturbed on the dry material. The same is true if one uses the high-frequency field not only for drying, but also for other heat treatments used by substances, e.g. B. for outgassing, calcining, polymerizing or for Carrying out endothermic reactions between solid and gaseous or vaporous Fabrics.
Es wurde nun gefunden, daß man bei der Wärmebehandlung von Stoffen im elektrischen Hochfrequenzfeld die besprochenen Nachteile vermeidet und ein homogenes elektrisches Feld erzielt, wenn man zur Wärmebehandlung eine gasdurchlässige Elektrode verwendet, die erfindungsgemäß durch überdeckte Öffnungen gekennzeichnet ist.It has now been found that in the heat treatment of fabrics in the high-frequency electric field avoids the disadvantages discussed and a homogeneous electric field achieved when a gas-permeable electrode is used for heat treatment used, which is characterized according to the invention by covered openings.
Vorteilhaft bildet man den gasdurchlässigen Teil der Elektrode mit überdeckten Öffnungen aus, wobei z. B. durch geeignete Stanzvorrichtungen ein Blech vielfach halbellipsenförmig aufgeschlitzt und die jeweils entstehende Zunge nach einer Seite durchgedrückt wird. Die Zungen nach Art eines Reibeisens können nach einer Seite oder wechselweise nach verschiedenen Seiten herausgedrückt werden.The gas-permeable part of the electrode is advantageously also formed covered openings, with z. B. a sheet metal by suitable punching devices often slit in the shape of a semi-ellipse and the resulting tongue after one side is pushed through. The tongues like a grater can after be pushed out on one side or alternately on different sides.
Man kann auch den gasdurchlässigen Teil der Elektrode jalousieartig ausbilden oder mit Löchern versehen, die pilzartig überdeckt sind. Hierbei sind die jalousieartigen Lamellen bzw. die pilzartigen Überdeckungen elektrisch leitend miteinander bzw. mit der Platte verbunden, so daß sie ebenfalls Hochfrequenzwellen aussenden.The gas-permeable part of the electrode can also be louvred train or provided with holes that are covered like a mushroom. Here are the louvre-like slats or the mushroom-like coverings are electrically conductive connected to each other or to the plate, so that they are also high-frequency waves send out.
Man erreicht durch diese Anordnungen, daß auch der gasdurchlässige Teil der Elektrode in seiner gesamten Fläche für die Hochfrequenzbehandlung ausgenutzt wird. Dadurch ist ein einheitliches Feld gewährleistet. Wenn alle Öffnungen nach der gleichen Seite gerichtet sind, wie es beim Reibeisen oder bei einer Jalousie der Fall ist, so entsteht eine gleichgerichtete Gasströmung, die etwa parallel zur Elektrodenfläche verläuft.This arrangement ensures that the gas-permeable Part of the electrode in its entire area used for high-frequency treatment will. This ensures a uniform field. When all openings after are directed on the same side, as is the case with a grater or a blind is the case, a gas flow in the same direction arises, which is approximately parallel to the Electrode surface runs.
Es ist vorteilhaft, die gasdurchlässige Elektrode als ein- bzw. mehrteiligen Hohlkörper auszubilden, der mit Mitteln zum Zuführen und/oder Abführen von Gasen oder Dämpfen ausgerüstet ist. Hierbei können die Hohlräume durch Trennwände unterteilt sein, um getrennte Zu- und Abführungsräume, die sich abwechseln können, zu schaffen. Die Abbildungen. zeigen einige der genannten Ausführungsarten als Beispiel, und zwar Abb. 1 die Reibeisenform und Abb. 2 die jalousieform.It is advantageous to have the gas-permeable electrode as a one-part or multi-part Form hollow body with means for supplying and / or removing gases or steaming. Here, the cavities can be divided by partitions to create separate supply and discharge rooms that can alternate. The illustrations. show some of the mentioned designs as an example, and Fig. 1 the grater shape and Fig. 2 the blind shape.
Die pilzartigen Überdeckungen (Abb. 3) können durch Stäbe mit der gelochten Platte verbunden werden. Die Elektrode kann auch als Hohlkörper mit überdeckten Öffnungen ausgebildet werden (Abb.4). Hierbei ist die gasdurchlässige Fläche 1 mit Löchern 2 versehen, bei 3 kann Gas bzw. Dampf abgeführt oder zugeführt werden.The mushroom-like coverings (Fig. 3) can be replaced by rods with the perforated plate to be connected. The electrode can also be covered as a hollow body Openings are formed (Fig.4). Here, the gas-permeable surface 1 is with Provided holes 2, at 3 gas or steam can be discharged or supplied.
Claims (5)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB54505A DE1078712B (en) | 1959-08-22 | 1959-08-22 | Gas-permeable electrode for the heat treatment of substances in an electrical high-frequency field |
| CH915560A CH384746A (en) | 1959-08-22 | 1960-08-12 | Gas-permeable electrode for the heat treatment of substances in an electrical high-frequency field |
| GB2875960A GB914546A (en) | 1959-08-20 | 1960-08-19 | Apparatus for the thermal treatment and/or reaction of materials in a high-frequencyfield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB54505A DE1078712B (en) | 1959-08-22 | 1959-08-22 | Gas-permeable electrode for the heat treatment of substances in an electrical high-frequency field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1078712B true DE1078712B (en) | 1960-03-31 |
Family
ID=6970633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB54505A Pending DE1078712B (en) | 1959-08-20 | 1959-08-22 | Gas-permeable electrode for the heat treatment of substances in an electrical high-frequency field |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH384746A (en) |
| DE (1) | DE1078712B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1283752B (en) * | 1964-06-16 | 1968-11-21 | Fitchburg Paper | High frequency dryer for moving material webs |
| DE1295114B (en) * | 1960-09-12 | 1969-05-14 | Svenska Sockerfabriks Ab | High-frequency furnace with a self-oscillating RF generator for dielectric heating of objects |
-
1959
- 1959-08-22 DE DEB54505A patent/DE1078712B/en active Pending
-
1960
- 1960-08-12 CH CH915560A patent/CH384746A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1295114B (en) * | 1960-09-12 | 1969-05-14 | Svenska Sockerfabriks Ab | High-frequency furnace with a self-oscillating RF generator for dielectric heating of objects |
| DE1283752B (en) * | 1964-06-16 | 1968-11-21 | Fitchburg Paper | High frequency dryer for moving material webs |
Also Published As
| Publication number | Publication date |
|---|---|
| CH384746A (en) | 1965-02-26 |
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