EP3005833A1 - Dispositif de traitement thermique de produits par micro-ondes et procédé de traitement thermique mettant en oeuvre un tel dispositif - Google Patents
Dispositif de traitement thermique de produits par micro-ondes et procédé de traitement thermique mettant en oeuvre un tel dispositifInfo
- Publication number
- EP3005833A1 EP3005833A1 EP14734862.7A EP14734862A EP3005833A1 EP 3005833 A1 EP3005833 A1 EP 3005833A1 EP 14734862 A EP14734862 A EP 14734862A EP 3005833 A1 EP3005833 A1 EP 3005833A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- enclosure
- microwaves
- heat treatment
- products
- 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
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 title claims description 32
- 239000000463 material Substances 0.000 claims description 8
- 238000007669 thermal treatment Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- -1 density Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229920002313 fluoropolymer Polymers 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000005297 pyrex Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000005115 demineralization Methods 0.000 description 1
- 230000002328 demineralizing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 239000013056 hazardous product Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000009928 pasteurization Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- H05B6/78—Arrangements for continuous movement of material
-
- 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
- H05B6/80—Apparatus for specific applications
-
- 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
- H05B6/6402—Aspects relating to the microwave cavity
-
- 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
-
- 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
- H05B6/788—Arrangements for continuous movement of material wherein an elongated material is moved by applying a mechanical tension to it
Definitions
- the present invention relates to a device for heat treatment of products by microwaves as well as to a thermal treatment process using a device for heat treatment of microwave products and a heat treatment process using such a device. such a device.
- This invention relates to the field of heat treatment of products using microwaves.
- document F-2,874,473 describes a method and a device for the heat treatment of a flexible material.
- This device comprises a chamber adopting the shape of a cylinder portion and a cylindrical drum rotatably mounted within this chamber.
- the flexible material to be treated circulates on the cylindrical drum, this between this cylindrical drum and the enclosure.
- This device comprises, again, microwave application modules to the flexible material to be treated. These modules are positioned near the drum and each comprise a microwave source (more particularly in the form of a magnetron) oriented and orientable toward the drum.
- This device has many disadvantages.
- the waves that penetrate inside this chamber lose their progressiveness resulting in the creation of standing waves.
- the creation of such standing waves prevents the electromagnetic energy of the waves from becoming heat, which significantly reduces the efficiency of such a device.
- the cylindrical shape of the drum does not allow the mixing of the waves which generates wall effects. These wall effects cause the appearance of areas with little or no heating which generates a heterogeneity of the temperature and, consequently, a heterogeneity of the heating and, therefore, of the treatment, of the material.
- the present invention is intended to overcome the disadvantages of devices of the state of the art.
- the invention relates to a device for heat treatment of products by microwaves, this device comprising:
- a drum extending along an axis and at least a part of which is mounted inside the enclosure;
- a support at least partially positioned in said spacing, and designed to receive and transport the products to be treated;
- At least one microwave application module for the products to be treated, such a module being designed to introduce microwaves within said spacing.
- the drum adopts the shape of a prism, extending along the axis of the drum, and comprising a plurality of sides extending parallel to the axis of the drum;
- the enclosure has, internally, a plurality of planar surfaces each oriented towards one of the sides of the drum and extending parallel to such a side of the drum.
- This invention also relates to a method of heat treatment of products by microwaves, this method being implemented by the device described above.
- This method comprises a step of introducing, by at least one of the microwave application modules, microwaves inside at least one volume delimited by a flat surface of the enclosure and by a side drum, parallel at such a flat surface, this when the drum is stationary relative to the enclosure.
- this method can also consist, on the one hand, in ensuring the rotation of the drum about its axis and relative to the enclosure and, on the other hand, in introducing, by at least one of the modules microwave application, microwaves within the spacing defined between the enclosure and the drum.
- the invention relates to a heat treatment device comprising, on the one hand, a drum with a plurality of sides, on the other hand, an enclosure with flat surfaces parallel to these sides and, secondly, Microwave application modules that introduce microwaves within the defined spacing between this drum and this chamber.
- Such a configuration advantageously makes it possible for microwaves introduced into the spacing to maintain their progressivity and thus to avoid the formation of standing waves which would prevent the electromagnetic energy of these waves from turning into heat.
- Preserving the progressivity of the microwaves makes it possible, advantageously, for the electromagnetic energy of these microwaves to be converted into heat so that the efficiency of the device according to the invention is considerably greater than that of the devices of the invention. state of the art.
- This configuration also makes it possible to ensure operation of the device in monomode, without resorting to mechanical means for stirring the waves.
- the drum adopts the shape of a prism having a plurality of sides and that the enclosure has a plurality of planar surfaces each extending parallel to such a side of the drum.
- the sides of the drum and the flat surfaces of the enclosure then form an angle between them.
- the presence of these angles, these sides and these flat surfaces advantageously allows the microwaves to be better reflected and more efficient than in a Cylinder of the state of the art where microwaves have no angle and experience a sliding effect.
- the drum of the device can be fixed in the configuration described above (sides of the drum and flat faces of the parallel enclosure) and with the advantages mentioned above.
- this drum can also be rotatable about its axis.
- this drum is rotating, it is advantageously a wave stirrer for operation of the multimode device.
- drum and carrier are disassociated and movable independently of one another and / or at a different speed from each other.
- the characteristics of the device according to the invention advantageously make it possible to diversify the products that can be treated thermally but also to diversify the fields of application of the microwave treatment, this with respect to the devices of the state of the art.
- this new device allows drying, debacterization, disinsectisation, extraction of active products, sterilization, pasteurization (including liquids), dehydration, lyophilization, shaping (especially bending, by example of wood), gluing, coating, pre-vulcanization, sintering, demineralization, welding, polymerization, forming, molding (vacuum or pressure), the processing of foodstuffs (cereals, fruits, tea ).
- FIG. 1 is a schematic perspective view of the device according to the invention.
- FIG. 2 is a diagrammatic and perspective view, on the one hand, of an enclosure and, on the other hand, of an assembly constituted by the drum and the support, which comprises the device according to the invention, and at least a part of which is mounted inside the enclosure.
- the present invention relates to the field of heat treatment of products using microwaves.
- microwaves also known as microwaves
- this frequency is usually 2450 MHz and, on the other hand, and in the United States, this frequency is usually 915 MHz.
- the invention relates to a device 1 for heat treatment of products by microwaves.
- Such a device 1 comprises, on the one hand, an enclosure 2, constituting substantially a heating body, and, on the other hand, a drum 3, extending along an axis 30, and at least a portion of which is mounted at inside said enclosure 2.
- This device 1 comprises, again, a spacing 4 defined between the enclosure 2 and the drum 3.
- Said device 1 also comprises a support 5, at least partially positioned in said spacing 4, and designed to receive and transport the products to be treated.
- this device 1 comprises at least one microwave application module 6 for the products to be treated, such module 6 being designed to introduce microwaves within said spacing 4.
- the drum 3 adopts the shape of a prism, extending along the axis 30 of the drum 3, and comprising a plurality of sides (31, 31 ', 31 ") extending parallel to the axis 30 of the drum 3.
- said drum 3 comprises at least six sides (drum in the form of a hexagonal prism).
- this drum 3 comprises at least eight sides (drum in the form of an octagonal prism), or even ten sides (drum in the form of a decagonal prism).
- this drum 3 is rotatable about its axis 30. This characteristic advantageously allows the waves to be stirred inside the spacing 4.
- the device 1 then comprises means for controlling the rotation of this drum 3.
- these means for controlling comprise means for conferring on said drum 3 a determined rotational speed, more particularly adapted to the need for heat treatment of the products.
- drum 3 is made of a microwave reflective material and / or non-transparent to microwaves.
- such a drum 3 may be made of stainless steel or of a metal reflecting microwaves and / or non-transparent to microwaves.
- this drum 3 can also be made of glass (in particular a glass known under the trade name "Pyrex") loaded with metal (in particular stainless steel), quartz loaded with metal (especially stainless steel), composite material reflecting the waves (in particular a composite material loaded with metal, for example stainless steel) which advantageously allows, to avoid any adhesion of the product to be treated on the drum 3 during the treatment but also to provide a less hazardous material (glass, quartz, composite) because of possible flashes with metal particles that may be in the products to be treated.
- glass in particular a glass known under the trade name "Pyrex” loaded with metal (in particular stainless steel), quartz loaded with metal (especially stainless steel), composite material reflecting the waves (in particular a composite material loaded with metal, for example stainless steel) which advantageously allows, to avoid any adhesion of the product to be treated on the drum 3 during the treatment but also to provide a less hazardous material (glass, quartz, composite
- such a material glass, quartz, composite
- metal may be supplemented by a glass layer to prevent oxidation.
- the device 1 comprises an enclosure 2.
- this chamber 2 has, internally, a plurality of flat surfaces (20; 20 '; 20 ") each oriented towards one (31; 31'; 31") of the sides of the drum 3 and extending parallel to such a side (31; 31 '; 31 ") of this drum 3.
- the plane surfaces (20; 20 '; 20 ") of the enclosure 2 are each oriented towards one side (31; 31'; 31") distinct from the drum 3 and are parallel to such a side (31; 31 '; 31 ").
- Such a characteristic advantageously makes it possible to define a volume of parallelepipedal shape between a plane surface (20; 20 '; 20 ") of the enclosure 2 and a side (31; 31'; 31") of the drum 3.
- microwaves are likely to move while maintaining their progressivity and avoiding the formation of standing waves.
- a plane surface (20; 20 '; 20 ") of the enclosure 2 and such a side (31; 31'; 31") of the drum 3 advantageously and in combination constitute an oversized waveguide .
- the device 1 according to the invention may also comprise a positioning means which advantageously makes it possible to guarantee the parallelism between the sides (31; 31 '; 31 ") of the drum 3 and the flat surfaces. (20; 20 '; 20 ") of the enclosure 2.
- said enclosure 2 comprises a plurality of elements (21; 21 '; 21 ") juxtaposed each having one of the planar surfaces (20; 20 '; 20 ") as aforesaid and oriented towards one (31; 31';31") of the sides of the drum 3.
- These elements (21; 21 '; 21 ") are arranged so as to at least partially surround the drum 3, more particularly arranged to surround at least a portion of the sides (31; 31'; 31") of the drum 3.
- these elements are arranged in an arc of a circle whose center coincides with the axis 30 of the drum 3. Said enclosure 2 then adopts a shape in "C” or in "U”.
- a preferred embodiment is that such an element (21; 21 '; 21 ") is constituted by a flat plate.
- At least one such element 21 is movable relative to at least one other element 21 ', especially juxtaposed.
- such an element 21 can then be articulated with respect to another element 21 'juxtaposed, more particularly articulated at a transverse end of this other juxtaposed element 21'.
- Such an embodiment advantageously makes it possible to tilt this element 21, on the one hand, in a direction opposite to that of the drum 3, so as to allow the exit of this drum 3 from said enclosure 2 (in particular for maintenance or replacement of the drum 3) and, secondly, in the direction of the drum 3 (especially after its introduction inside the chamber 2) so that the flat surface 20 of this element 21 is parallel to a side 31 of the drum 3.
- each part of this chamber 2 comprises, then, a part of these elements 21 while the other part of this chamber 2 comprises the other part of these elements 21 '. So, in case of displacement of a part of this chamber 2 with respect to the other part of this chamber 2, the elements 21 (which this part of enclosure 2 comprises) move relative to the other elements 21 '(that includes the other part of this enclosure 2). According to this other embodiment, said enclosure 2 can then advantageously surround all the sides (31; 31 '; 31 ") of the drum 3.
- Such a chamber 2 is, more particularly, suitable for the treatment of fluid products , especially liquids.
- the enclosure 2 has, internally, a plurality of planar surfaces (20; 20 '; 20 ") each oriented toward one (31; 31'; 31") of the sides of the drum 3 and extending parallel to such a side (31; 31 '; 31 ") of this drum 3.
- the drum 3 can be immobilized relative to said chamber 2 in such a position. This position can be guaranteed by the aforementioned positioning means.
- this drum 3 is rotatably mounted inside this chamber 2 so that, during such a rotation, the sides (31; 31 '; 31 ") of this drum 3 form then an angle with the planar surfaces (20; 20 '; 20 ") of the enclosure 2. This results in a stirring of the waves within the spacing 4 between the sides (31; 31'; ") of this drum 3 and the flat surfaces (20; 20 '; 20") of the enclosure 2.
- the device 1 comprises a support 5, at least partially positioned in said spacing 4, and designed to receive and transport the products to be treated at least within this spacing 4.
- such a support 5 is made of a material that is transparent to microwaves, more particularly a glass (in particular a glass known under the trade name pyrex) or a polymer, more particularly a fluorinated polymer (especially polytetrafluoroethylene usually known under the trade name Teflon).
- a support 5 comprises, on the one hand, a cylinder 50 inside which is positioned the drum 3 (more particularly coaxially) and, on the other hand, a carpet 51 positioned at the periphery of said cylinder 50, this so as to define with this cylinder 50 a cavity for receiving the products to be treated.
- Such a belt 51 can be configured in a circular arc coaxial with said cylinder 50.
- the device 1 has means for adjusting the distance of the belt 51 from the cylinder 50.
- such a support 5 may comprise a coil (in particular made of a fluoropolymer as mentioned above) wound around the drum 3 and within which a fluid may circulate.
- this support 5 may also comprise straight tubes (in particular glass) fitted to said drum 3.
- this support 5 comprises a completely closed circular reactor (capable of working under vacuum or in pressure), again equipping said drum 3.
- a reactor may, advantageously, be completed by a cooling system.
- Another feature of the invention is that at least a portion of the support 5 is movable around the drum 3 or with this drum 3, more particularly around the axis 30 of the drum 3.
- the device 1 then comprises means for controlling the movement of this support 5.
- these means for controlling comprise means for conferring on said support 5 a determined speed, more particularly adapted to the duration of the treatment of the products to be treated.
- the device 1 comprises a drum 3 mounted to rotate about its axis 30.
- this drum 3 and the support 5 are dissociated and are movable (more particularly in rotation), this independently of one another and / or with a speed (more particularly of rotation) different from each other.
- Such a characteristic advantageously makes it possible to set the support 5 in motion and, depending on the products to be treated, either to keep the drum 3 immobile (more particularly in a configuration as described above), or to set this drum in motion. 3 (in particular at a speed different from that of said support 5).
- At least the drum 3 and the support 5 are slidable relative to at least a part of the enclosure 2.
- Such sliding takes place, preferably, in a direction perpendicular to the axis 30 of the drum 3.
- the drum 3 and the support 5 are slidable relative to the chamber 2 which comprises at least articulated element 21 (tilting) as mentioned above, this to allow the opening of the chamber 2 and the extraction of the drum 3 and the support 3 from this enclosure 2.
- the drum 5, the support 5 and a part of the enclosure 2 are slidable relative to another part of this enclosure 2.
- the device 1 comprises, on the one hand, a fixed frame part on which is mounted at least a portion of said enclosure 2 and, secondly, a moving frame portion (more particularly in a direction perpendicular to the axis 30 of the drum 3) relative to the fixed part of this frame and on which are mounted at least said drum 3 and said support 5 (or even another part of the enclosure 2).
- Such a characteristic makes it possible, advantageously, to move the assembly constituted by the drum 3 and the support 5 (or even by a part of the enclosure 2), this with respect to at least a part of said enclosure 2.
- such displacement can be provided in order to perform a maintenance operation on this set and / or a replacement of this set and / or a modification of this set.
- the device 1 comprises at least one microwave application module 6.
- this or these microwave application modules 6 each comprise a waveguide 60, on the one hand, extending in the direction of the spacing 4 defined between the drum 3 and the enclosure 2 and, on the other hand, designed to introduce, within this spacing 4, microwaves in a direction corresponding to the direction of movement of the products to be treated (this within this spacing 4 ) and / or in a direction parallel to one (20; 20 '; 20 ") of the flat surfaces of the enclosure 2.
- such a waveguide 60 has a section in the shape of a parallelepiped, in particular a rectangle.
- microwave application module 6 (more particularly the waveguide 60 that includes such a module 6) is mounted on the enclosure 2, more particularly on an element (21 21 ', 21 ") which comprises the chamber 2, this on the opposite side to that oriented in the direction of the drum 3.
- Such an element (21; 21 '; 21 ") then comprises an opening 22 for the passage of the waves and at the right of which is mounted the microwave application module 6, more particularly the waveguide 60 that comprises it.
- such a module 6 is mounted on an element (21 '; 21 "; 21) which is juxtaposed with an element (21; 21'; 21") of the enclosure 2 delimiting (with a side 31 of the drum 3 parallel to the plane surface 20 of this element 21) a volume inside which this module 6 introduces the microwaves and / or having the plane surface (20; 20 ', 20 ") parallel to the direction in which the module 6 introduces the microwaves into the spacing 4.
- Such a module 6 comprises at least one microwave source 61, more particularly in the form of a magnetron or the like.
- the device 1 (more particularly the enclosure 2) comprises, upstream and / or downstream of the microwave application module or modules 6, at least one means 7. to trap the waves.
- such a means 7 for trapping the waves is constituted by a cavity extending parallel to the axis 30 of the drum 3, opening towards the inside of the enclosure 2, and having an omega-shaped section.
- the device 1 may include, upstream of a microwave application module 6, such a means 7 for trapping the waves emitted in particular by another microwave application module.
- each flat surface (20; 20 ', 20 ") of the enclosure 2 delimits, with one side (31; 31'; 31") of the drum 3 which is parallel to this flat surface (20 20 ', 20 "), a volume within which a microwave application module 6 introduces the microwaves.
- the means 7 for trapping the waves introduced into such a volume by a microwave application module 6 is positioned downstream of this module 6 and on the side of this volume opposite the volume by which the waves are introduced into this volume by this module 6.
- Such a means 7 for trapping the waves is interposed between two plane surfaces (20; 20 '; 20 ") that comprises the enclosure 2, more particularly two plane surfaces (20; 20'; ") juxtaposed.
- such a means 7 is more particularly interposed between two juxtaposed elements (21; 21 '; 21 ") mentioned above, which the enclosure 2 comprises, and which comprise such a flat surface ( 20, 20 ', 20 ").
- the device 1 comprises, then, at least one piece for connecting two juxtaposed elements (21; 21 '; 21 ") that the enclosure 2 comprises, such a part comprising the cavity constituting the means 7 for trap the waves.
- Such a means 7 for trapping the waves makes it possible to allocate to each microwave application module 6 a volume (as described above) inside which this module 6 introduces the microwaves. .
- a module 6 comprises, thus, its own operating chamber.
- the device 1 comprises means for managing its operation.
- these means for managing enable control of the power of the modules 6, the movement of the support 5, the holding at a standstill (for use in monomode of the device 1) or the movement (for multimode use of the device 1 ) of the drum 3.
- the invention also relates to a method of heat treatment of products by microwaves. According to the invention, this method is implemented by the device 1 described above.
- this method comprises a step of introducing, by at least one of the microwave application modules 6, microwaves within at least one volume delimited by one of the plane surfaces (20; 20 ', 20 ") of the chamber 2 and one of the sides (31; 31'; 31") of the drum 3, parallel to such a flat surface (20; 20 '; 20 "), when the drum is motionless in relation to the enclosure.
- Such a method advantageously allows operation of said device 1 in monomode.
- the support 5 is set in motion in order to ensure the circulation of the products to be treated inside the device 1, more particularly inside said spacing 4.
- the invention also relates to another method of thermal treatment of products by microwaves implemented by the device described above.
- This other method consists, on the one hand, in ensuring the rotation of the drum 3 around its axis 30 and with respect to the chamber 2 and, on the other hand, in introducing, by at least one of the application modules 6 microwaves, microwaves within the spacing 4 defined between the chamber 2 and the drum 3.
- Such a method advantageously allows an operation of said device 1 in multimodes and to ensure the mixing of waves within said spacing 4.
- the support 5 is set in motion to ensure the circulation of the products to be treated inside the device 1.
- the drum 3 and the support 5 are given a movement with the same speed.
- the drum 3 and the support 5 are given a movement with different speeds.
- This method advantageously makes it possible, on the one hand, to adapt the processing time of the products (by acting on the speed of the support 5) according to the characteristics of these products and, on the other hand, to adapt as necessary heat treatment of the products (by acting on the speed of the drum 3 and, therefore, the mixing of the waves).
- the presence of the management means advantageously makes it possible to operate the device 1 only in single mode, only in multimode, but also in multimode as well as in monomode (in particular in an alternative manner) and to switch from to each other during a treatment period.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Furnace Details (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL14734862T PL3005833T3 (pl) | 2013-05-28 | 2014-05-28 | Urządzenie do obróbki termicznej produktów za pomocą mikrofal i sposób obróbki termicznej realizowany przez takie urządzenie |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1354820A FR3006545B1 (fr) | 2013-05-28 | 2013-05-28 | Dispositif de traitement thermique de produits par microondes et procede de traitement thermique mettant en oeuvre un tel dispositif |
PCT/FR2014/051256 WO2014191681A1 (fr) | 2013-05-28 | 2014-05-28 | Dispositif de traitement thermique de produits par micro-ondes et procédé de traitement thermique mettant en oeuvre un tel dispositif |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3005833A1 true EP3005833A1 (fr) | 2016-04-13 |
EP3005833B1 EP3005833B1 (fr) | 2017-07-05 |
Family
ID=48782522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14734862.7A Active EP3005833B1 (fr) | 2013-05-28 | 2014-05-28 | Dispositif de traitement thermique de produits par micro-ondes et procédé de traitement thermique mettant en oeuvre un tel dispositif |
Country Status (8)
Country | Link |
---|---|
US (1) | US10292214B2 (fr) |
EP (1) | EP3005833B1 (fr) |
CN (1) | CN105379417B (fr) |
ES (1) | ES2642068T3 (fr) |
FR (1) | FR3006545B1 (fr) |
PL (1) | PL3005833T3 (fr) |
RU (1) | RU2658637C2 (fr) |
WO (1) | WO2014191681A1 (fr) |
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JP6842786B1 (ja) * | 2020-02-10 | 2021-03-17 | マイクロ波化学株式会社 | マイクロ波処理装置、及びマイクロ波処理方法 |
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US4631380A (en) * | 1983-08-23 | 1986-12-23 | Durac Limited | System for the microwave treatment of materials |
KR100487733B1 (ko) * | 1996-05-17 | 2005-08-09 | 테크놀러지 파이낸스 코퍼레이션(프로프리어터리) 리미티드 | 유전가열장치 |
US5834744A (en) * | 1997-09-08 | 1998-11-10 | The Rubbright Group | Tubular microwave applicator |
RU2207744C2 (ru) * | 2001-09-24 | 2003-06-27 | Уфимский государственный нефтяной технический университет | Сверхвысокочастотная электромагнитная сушилка пастообразных и сыпучих материалов |
DE10329411B4 (de) * | 2003-07-01 | 2006-01-19 | Forschungszentrum Karlsruhe Gmbh | Mikrowellenresonator, eine aus einem solchen Mikrowellenresonator modular aufgebaute Prozessstraße, ein Verfahren zum Betreiben und nach diesem Verfahren thermisch prozessierte Gegenstände/Werkstücke mittels Mikrowelle |
FR2874473B1 (fr) * | 2004-08-19 | 2008-10-10 | Michel Boulard | Procede et dispositif pour le traitement thermique d'un materiau souple |
US8575525B2 (en) | 2005-01-03 | 2013-11-05 | Jeffrey H. Mackay | Tunnel for conditioning of products, especially for sterilization of food in prepackaged containers |
GB2429143B (en) | 2005-07-11 | 2008-02-13 | Re18 Ltd | Vessel and source of radio frequency electromagnetic radiation, heating apparatus and method of heating a feedstock |
TW200810346A (en) * | 2006-08-01 | 2008-02-16 | Univ Nat Taiwan | Distributed amplifier having a variable terminal resistance |
JP4802235B2 (ja) * | 2008-11-10 | 2011-10-26 | 茂 八嶋 | 無菌加温水連続給水設備 |
-
2013
- 2013-05-28 FR FR1354820A patent/FR3006545B1/fr active Active
-
2014
- 2014-05-28 EP EP14734862.7A patent/EP3005833B1/fr active Active
- 2014-05-28 WO PCT/FR2014/051256 patent/WO2014191681A1/fr active Application Filing
- 2014-05-28 ES ES14734862.7T patent/ES2642068T3/es active Active
- 2014-05-28 US US14/894,295 patent/US10292214B2/en active Active
- 2014-05-28 CN CN201480030667.4A patent/CN105379417B/zh active Active
- 2014-05-28 RU RU2015155652A patent/RU2658637C2/ru active
- 2014-05-28 PL PL14734862T patent/PL3005833T3/pl unknown
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RU2658637C2 (ru) | 2018-06-22 |
WO2014191681A1 (fr) | 2014-12-04 |
CN105379417B (zh) | 2018-10-30 |
FR3006545B1 (fr) | 2015-07-17 |
FR3006545A1 (fr) | 2014-12-05 |
ES2642068T3 (es) | 2017-11-15 |
RU2015155652A3 (fr) | 2018-05-16 |
PL3005833T3 (pl) | 2018-01-31 |
CN105379417A (zh) | 2016-03-02 |
US20160105931A1 (en) | 2016-04-14 |
RU2015155652A (ru) | 2017-06-30 |
EP3005833B1 (fr) | 2017-07-05 |
US10292214B2 (en) | 2019-05-14 |
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