EP1016324B1 - Applicateur de micro-ondes, et son application a la scarification superficielle du beton contamine - Google Patents
Applicateur de micro-ondes, et son application a la scarification superficielle du beton contamine Download PDFInfo
- Publication number
- EP1016324B1 EP1016324B1 EP98904246A EP98904246A EP1016324B1 EP 1016324 B1 EP1016324 B1 EP 1016324B1 EP 98904246 A EP98904246 A EP 98904246A EP 98904246 A EP98904246 A EP 98904246A EP 1016324 B1 EP1016324 B1 EP 1016324B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- microwaves
- waveguide
- reflects
- microwave applicator
- component
- 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
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Classifications
-
- 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
- H05B6/70—Feed lines
- H05B6/701—Feed lines using microwave applicators
-
- 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
- H05B6/70—Feed lines
- H05B6/707—Feed lines using waveguides
- H05B6/708—Feed lines using waveguides in particular slotted waveguides
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S588/00—Hazardous or toxic waste destruction or containment
- Y10S588/90—Apparatus
Definitions
- the invention belongs to an applicator of microwave and its application to scarification superficial contaminated concrete.
- a death devices includes a lens converging at the output of the waveguide.
- Another includes a waveguide presenting a final enlargement and divided to this place by parallel plates that are exposed to a microwave beam made divergent by entering in enlargement. Wave reflections produced on the parallel plates make the beam converge and focus at the exit of the applicator.
- the third is about an application head hemisphere from which microwaves come out through slots in an arc.
- an applicator comprising a waveguide and a head in which this waveguide ends, the head having an opening directed at a target of microwaves and essentially comprising a reflective envelope the microwaves.
- the envelope is an elliptical sectional surface truncated and has two focal areas, one of which located out of the opening, is the focal point microwaves.
- the other focal area is a place of microwaves from the guide waves to the surface of the envelope, where the microwaves are reflected to converge towards the zone of focusing.
- the focal zone of dispersion is occupied by a reflective piece the microwaves and the waveguide is directed towards this piece, which can be especially spherical, cylindrical of revolution or angled wedge directed to the waveguide.
- a reflective piece the microwaves and the waveguide is directed towards this piece, which can be especially spherical, cylindrical of revolution or angled wedge directed to the waveguide.
- the main application envisaged is therefore the crumbling of contaminated concrete, but it is not unique and the invention might find employment for the grinding stones or medicine.
- the equipment can be mounted on a trolley 1 rolling on the concrete wall 2 to be scoured; it includes a microwave generator 3, a head 4, a waveguide 5 connecting the two previous, a vacuum cleaner 6, a suction cup 7 surrounding the end of the application head 4, a suction duct 8 opening into the cup 7, and possibly a membrane 9 blocking the opening 10 of the application head 4.
- Microwaves originating in the transmitter 3 circulate through the guide 5 and leave the application head 4 by the opening 10, placed directly on the wall 2 or very little distance from her in order to limit the leaks; the optional membrane 9 serves to protect inside the application head 4 dust and debris produced by the crumbling concrete but it is obviously permeable to microwaves. The dust and debris rise in the cup 7 and are sucked by the vacuum cleaner 6.
- the application head 4 is an envelope in truncated cylinder shape with elliptical base or cylinder ellipsoidal, which includes two focal zones F1 and F2, and that the truncation is such that the second zone focal length F2 is located outside the envelope, under the surface of the concrete wall 2.
- the waveguide 5, which may be formed of a section metal sheath rectangle, presents a plane of symmetry coincides with the plane joining the focal areas F1 and F2 of the ellipsoidal cylinder.
- the first F1 zone, located in the envelope, is occupied by a reflector 11, here formed by a metal cylinder of revolution connected to the application head 4.
- the second focal zone F2 is actually placed a little deeper into the concrete wall 2 than what is represented, because of the refraction of the waves produced at the separation of air and concrete.
- the air-concrete interface also produces reflections waves in all directions, towards the guide 5 and outwardly in particular.
- the interest of a shaped envelope cylinder with elliptical base is that we can give it a significantly larger width in the direction transverse to its displacement 1, in order to spread heating over a wider width of the concrete and scarify it along wider bands.
- the Figure 3 shows that the focal areas F1 and F2 are linear and take the appearance of segments parallel to the axis of the reflector 11 in ellipsoidal cylinder, and that the focal zone F2 represents the bandwidth heated on the concrete.
- the rectangular waveguide 5 has its section whose long side is parallel to the transverse direction to emit the waves on a wider width.
- dihedral 14 of Figure 4 consisting of two flat facets 15 joining by an angle 16 directed towards waveguide 5 and opening towards the opening 10. We thus remove the portions reflectors normal to the waveguide 5 and the dangerous reflections for the transmitter 3.
- dihedron 14 is, however, that focuses less radiation towards the second focus F2.
- the waveguide 5 coaxial with the application head 4 is replaced by a waveguide 20 coaxial to the first focal zone and located in its extension.
- the waveguide 20 is inside of the envelope in the form of a tube 17 pierced with thin radiating slits 18 lengthening according to its length and spread over much of his surface, except towards the opening 10.
- the waves leave the tube 17 in all directions from the first F1 focus. As in previous achievements, they are reflected against the inner surface of the application head 4 to the second focal zone F2. As the wave path remains the same as previously from the first focal zone F1, the operation of the device remains the same.
- the ellipsoid of the application head 4 can have a more or less transverse dimension important: the previous figures illustrated the case of application heads 4 wide, with reflector 11, 14 or 17 elongated transversely and with F1 focal areas and linear F2; application heads with symmetry of revolution can also be chosen, the zones focal points being replaced by focal points punctual; the reflective piece will be a sphere or a cone which will replace the cylinder 11 or dihedron 14, and it will be connected to the application head 4 by suspension rods; the representations of figures 2 and 4 then remain valid, all sections of the application head then having an elliptical section truncated.
- FIGS. 2 and 4 finally illustrate embodiments of FIGS. 2 and 4, which distinguish in that the waveguide 5, instead flush with the inner surface of the envelope of the application head 4, includes an extension 19 which sinks into the room surrounded by the head application 4 to the focal zone F1; the extension stops at a distance advantageously close to a quarter of the ounce length of microwaves, It was found that this provision gave good Focusing results thanks to longer guidance microwaves. It was also found that he was advantageous that the reflector 11 or 14 has a clutter roughly equal to a quarter of the length wave. These values are however approximate and result of empirical tests, so that others good solutions, even better solutions, must exist in particular cases depending in particular the shape of the reflector.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
Description
- la figure 1 représente une vue générale de l'invention,
- la figure 2 représente une première conception de l'applicateur,
- la figure 3 illustre une autre vue de cette conception de l'applicateur,
- la figure 4 illustre une deuxième conception de l'applicateur,
- la figure 5 illustre une troisième conception de l'applicateur,
- et les figures 6 et 7 illustrent des variantes de réalisation des figures 2 et 4.
Claims (10)
- Applicateur de micro-ondes comprenant un guide d'ondes (5) et une tête (4) dans laquelle aboutit le guide d'ondes, la tête ayant une ouverture (10) dirigée vers une cible (2) des micro-ondes et comprenant essentiellement une enveloppe réfléchissant les micro-ondes, caractérisé en ce que l'enveloppe est à section elliptique tronquée ayant deux zones focales, l'une des zones focales (F1), vers laquelle le guide d'ondes est dirigé, étant occupée par une pièce (11) réfléchissant les micro-ondes et l'autre des zones focales (F2) étant située hors de l'ouverture.
- Applicateur de micro-ondes comprenant un guide d'ondes (20) et une tête (4) dans laquelle aboutit le guide d'ondes, la tête ayant une ouverture (10) dirigée vers une cible (2) des micro-ondes et comprenant essentiellement une enveloppe réfléchissant les micro-ondes, caractérisé en ce que l'enveloppe est à section elliptique tronquée à deux zones focales, l'une des zones focales (F1), à laquelle aboutit le guide d'ondes, étant occupée par une pièce (17) diffusant les micro-ondes et l'autre des zones focales (F2) étant située hors de l'ouverture (10).
- Applicateur de micro-ondes suivant la revendication 1, caractérisé en ce que la pièce réfléchissant les micro-ondes est sphérique.
- Applicateur de micro-ondes suivant la revendication 1, caractérisé en ce que la pièce réfléchissant les micro-ondes est cylindrique de révolution (11).
- Applicateur de micro-ondes suivant la revendication 1, caractérisé en ce que la pièce réfléchissant les micro-ondes est un dièdre (14) à angle dirigé vers le guide d'ondes.
- Applicateur de micro-ondes suivant la revendication 1, caractérisé en ce que la pièce réfléchissant les micro-ondes est un cône.
- Applicateur de micro-ondes suivant la revendication 1, caractérisé en ce que le guide d'ondes (5) affleure à une surface interne de l'enveloppe réfléchissant les micro-ondes.
- Application de micro-ondes suivant la revendication 1, caractérisé en ce que le guide d'ondes (5) comprend un prolongement (19) dans l'enveloppe réfléchissant les micro-ondes et qui s'arrête à une distance voisine d'un quart de longueur d'onde des micro-ondes de la zone focale (F1) occupée par la pièce réfléchissant les micro-ondes.
- Applicateur de micro-ondes suivant la revendication 2, caractérisé en ce que la pièce diffusant les micro-ondes est une pièce entaillée par des fentes (18) et dans laquelle finit le guide d'ondes (15).
- Application de l'applicateur de micro-ondes suivant la revendication 1 à la scarification superficielle du béton contaminé.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9701102 | 1997-01-31 | ||
FR9701102A FR2759239B1 (fr) | 1997-01-31 | 1997-01-31 | Applicateur de micro-ondes, et son application a la scarification superficielle du beton contamine |
PCT/FR1998/000165 WO1998034435A1 (fr) | 1997-01-31 | 1998-01-29 | Applicateur de micro-ondes, et son application a la scarification superficielle du beton contamine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1016324A1 EP1016324A1 (fr) | 2000-07-05 |
EP1016324B1 true EP1016324B1 (fr) | 2003-04-09 |
Family
ID=9503192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98904246A Expired - Lifetime EP1016324B1 (fr) | 1997-01-31 | 1998-01-29 | Applicateur de micro-ondes, et son application a la scarification superficielle du beton contamine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6157013A (fr) |
EP (1) | EP1016324B1 (fr) |
JP (1) | JP2001511295A (fr) |
DE (1) | DE69813262T2 (fr) |
FR (1) | FR2759239B1 (fr) |
WO (1) | WO1998034435A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6746425B1 (en) * | 1996-06-14 | 2004-06-08 | Futuremed Interventional | Medical balloon |
US6114676A (en) * | 1999-01-19 | 2000-09-05 | Ramut University Authority For Applied Research And Industrial Development Ltd. | Method and device for drilling, cutting, nailing and joining solid non-conductive materials using microwave radiation |
US6797929B2 (en) | 1999-12-07 | 2004-09-28 | Industrial Microwave Systems, L.L.C. | Cylindrical reactor with an extended focal region |
FR2812166B1 (fr) | 2000-07-21 | 2002-12-13 | Commissariat Energie Atomique | Applicateur de micro-ondes focalisant |
AU2003211766A1 (en) * | 2002-03-06 | 2003-09-16 | Nippon Steel Corporation | Method of treating contaminated soil for converting the soil to harmless soil and applicator |
JP5359364B2 (ja) * | 2009-02-25 | 2013-12-04 | セイコーエプソン株式会社 | 光源装置およびプロジェクタ |
DE102009010665A1 (de) | 2009-02-27 | 2010-09-16 | Beiersdorf Ag | Verwendung von geladenen Tensiden zur Verminderung der Textilverfleckung durch Antitranspirantien |
EP3868245B1 (fr) * | 2019-11-01 | 2024-04-10 | ASICS Corporation | Procédé de fabrication d'un élément de chaussure, et matrice de moulage |
FR3104383B1 (fr) | 2019-12-11 | 2021-12-03 | Commissariat Energie Atomique | Procédé et appareil de désherbage par rayonnement électromagnétique |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL238818A (fr) * | 1959-05-01 | |||
JPH07109439B2 (ja) * | 1989-05-30 | 1995-11-22 | 科学技術庁原子力局長 | マイクロ波照射による放射能汚染コンクリート表層部の剥離除去装置 |
US5507927A (en) * | 1989-09-07 | 1996-04-16 | Emery Microwave Management Inc. | Method and apparatus for the controlled reduction of organic material |
JPH0694990B2 (ja) * | 1989-11-06 | 1994-11-24 | 三菱電機株式会社 | イメージ加熱装置 |
JPH0776673B2 (ja) * | 1990-01-19 | 1995-08-16 | 三菱電機株式会社 | イメージ加熱装置 |
GB9005707D0 (en) * | 1990-03-14 | 1990-05-09 | Atomic Energy Authority Uk | Tritium removal |
US5003144A (en) * | 1990-04-09 | 1991-03-26 | The United States Of America As Represented By The Secretary Of The Interior | Microwave assisted hard rock cutting |
US5449889A (en) * | 1992-10-30 | 1995-09-12 | E. I. Du Pont De Nemours And Company | Apparatus, system and method for dielectrically heating a medium using microwave energy |
SE503373C2 (sv) * | 1993-06-28 | 1996-06-03 | Asea Atom Ab | Sätt vid dekontaminering av ytor i en kärnanläggning |
JP3167580B2 (ja) * | 1995-05-12 | 2001-05-21 | 三菱電機株式会社 | 放射能汚染コンクリート表層部の除去装置及び除去方法 |
US6013330A (en) * | 1997-02-27 | 2000-01-11 | Acushnet Company | Process of forming a print |
-
1997
- 1997-01-31 FR FR9701102A patent/FR2759239B1/fr not_active Expired - Fee Related
-
1998
- 1998-01-29 US US09/355,300 patent/US6157013A/en not_active Expired - Fee Related
- 1998-01-29 DE DE69813262T patent/DE69813262T2/de not_active Expired - Fee Related
- 1998-01-29 WO PCT/FR1998/000165 patent/WO1998034435A1/fr active IP Right Grant
- 1998-01-29 JP JP53258698A patent/JP2001511295A/ja active Pending
- 1998-01-29 EP EP98904246A patent/EP1016324B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2759239B1 (fr) | 1999-03-05 |
JP2001511295A (ja) | 2001-08-07 |
US6157013A (en) | 2000-12-05 |
DE69813262D1 (de) | 2003-05-15 |
EP1016324A1 (fr) | 2000-07-05 |
FR2759239A1 (fr) | 1998-08-07 |
DE69813262T2 (de) | 2004-02-05 |
WO1998034435A1 (fr) | 1998-08-06 |
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