EP3775382B1 - Dispositif, en particulier pour le chauffage d'asphalte et de mélanges similaires et de réparations de surfaces d'asphalte - Google Patents

Dispositif, en particulier pour le chauffage d'asphalte et de mélanges similaires et de réparations de surfaces d'asphalte Download PDF

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Publication number
EP3775382B1
EP3775382B1 EP19721826.6A EP19721826A EP3775382B1 EP 3775382 B1 EP3775382 B1 EP 3775382B1 EP 19721826 A EP19721826 A EP 19721826A EP 3775382 B1 EP3775382 B1 EP 3775382B1
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EP
European Patent Office
Prior art keywords
asphalt
heating
repairs
similar mixtures
outlet chamber
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EP19721826.6A
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German (de)
English (en)
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EP3775382C0 (fr
EP3775382A1 (fr
Inventor
Jiri RUSIKVAS
Frantisek BALCAR
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Futtec AS
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Futtec AS
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Publication of EP3775382C0 publication Critical patent/EP3775382C0/fr
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/14—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces for heating or drying foundation, paving, or materials thereon, e.g. paint
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/08—Apparatus for transporting and heating or melting asphalt, bitumen, tar, or the like

Definitions

  • the heating of asphalt materials during the roads maintenance and repairs takes place by means of direct heating by flame, infrared radiation or microwave radiation.
  • Utilisation of the microwave heating is limited by uniformity of the heated material.
  • the invention concerns the device for repair of road pavement by asphalt material, which ensures quick and uniform concentration of energy to determined location in the vicinity of a pothole and an optimum warming-through of material.
  • Potholes in the wearing course belongs to surface failures of the asphalt road pavement, caused by the effects of traffic load or by imperfect joining of the wearing and bed courses at the simultaneous action of climatic effects.
  • the potholes occur in particular at alternating of plus and minus temperatures, when failure of the wearing course, or road pavement cover, respectively, consistence occurs and a sharply bordered failure originates, so called pothole, which extends through the whole wearing course of the road pavement. Subsequently its surface and depth are continuously increasing, it is spread to road pavement surface area and following is disintegration of the road pavement wearing course or complete disintegration of asphalt layers and road pavement.
  • any pothole subsequently influences the road traffic safety, smoothness and comfort.
  • the growing pothole increases also the costs of the traffic means operation and maintenance, but mainly there is also a risk to human lives, health and property.
  • the gas burners or infrared radiators are used for asphalt heating.
  • the disadvantage consists in the necessity to utilise the temperatures higher than the critical temperature of asphalt degradation, since due to its low thermal conductivity asphalt is not able to transmit temperature efficiently into the whole heated layer. Therefore it is necessary to ensure a continuous permanent mixing in these devices, which is not always technically feasible, and concerning heating of the road pavement asphalt surfaces it is completely out of question.
  • the microwave heating of asphalt material and of surface of the pothole in the road pavement and its vicinity tries to remove the above disadvantages.
  • the microwave heating enables heating of the asphalt material volume, i.e. the whole volume up to required depth, without respect to its low thermal conductivity. With the microwave heating utilising the waves penetrate asphalt mixture to approximately 120 mm depth.
  • the disadvantage of this way is non-uniform character of the microwave radiation flow, which affects the heated surface.
  • the above problem has been resolved to a certain level by material turning or shifting, which is possibly complemented by deflectors, which have to homogenise the microwave radiation.
  • deflectors which have to homogenise the microwave radiation.
  • the rotating blade deflectors are used, which are located in the wave ducts, leading the microwave radiation from its source to the food heating point.
  • the basic difficulty of the asphalt surface heating by means of microwaves is assurance of a uniform action of energy on asphalt surface within the device working area.
  • heating period control i.e. control of resulting temperature of the heated asphalt, in particular at heating of asphalt road pavements surface.
  • the temperature is not measured and it is influenced by experience of the operator and by correct setting of the heating period only.
  • the heating devices are not able to record temperature of the heated material and to transmit it for further processing, filing or control of the heating process within optimal range.
  • US 3 601 448 A envisages simple heating of the asphalt layer regardless of the possible thermaloxidative degradation of the asphalt binder, because its aim is only to heat the asphalt layer so that it can be more easily removed, not repaired.
  • the propellers according to the US patent do not ensure homogeneous heating of the asphalt layer, because part of the microwaves passes through the space between the coaxial propellers unaffected and creates inhomogeneities in the heating of the surface.
  • the cited U.S. patent provides an invention for tearing solid materials through a temperature difference causing thermal expansion of the material heated by microwaves. It does not address the homogeneity and gentle heating of the material at all, which is an important part of the applicant's patent. On the contrary, the inhomogeneity of the application of microwaves to the material and thus the formation of temperature and volume differences in the material is a condition of the function of the US patent. The use of a US patent will not produce the result required for the applicant's patent.
  • D1 describes a method of removing asphalt from concrete
  • the propellers do not demonstrably create such homogeneity as applicant's eccentric plates and therefore the applicant's solution advances the state of the art.
  • the device according to invention the substance of which consists in the fact that it is provided with at least one microwave generator and a control system, where the outlet chamber is provided by at least one mixer, on which at least one deflector is set.
  • the deflector is fixed on rotary shaft and it has a circular shape, while the deflector plane forms an angle of 20 to 70 degrees with vertical plane.
  • the rotary shaft for the deflectors is horizontal and deflectors fixed on it have different diameters, from 100 to 350 millimetres.
  • the control system is linked partly with the device for measuring temperature of the heated mixture and/or repaired asphalt surface, and partly with drive of the rotary shafts.
  • the microwave generator and the control system may be seated on a chassis, which is provided with the steering tow bar with a single front driving wheel, and it is provided with a fan with cooling air distributions or with water cooling.
  • the cooling air system is provided with a heating element, which enables the system controlled drying of humidity in the microwave generator is in case of increased humidity condensing.
  • the bottom perimeter of the outlet chamber is provided with the screening brush made of carbon fibres.
  • Driving shafts of the mixers are linked with the motors by flexible coupling and they are seated in the outlet chamber by means of bearings.
  • the mixers are provided with optical gate and a disc with a slot.
  • the outlet chamber may be provided with optical camera or thermal camera.
  • the equipment according to the invention is suitable in particular for operative repairs of road pavement and other asphalt surfaces with a year-round operation possibility, i.e. without respect to the ambient temperature.
  • the device utilises the physical phenomenon, when with the substances absorbing the microwaves, in electrical field orientation of molecules occurs according to polarity, which in case of the high-frequency electromagnetic field changes many times per second. This will cause oscillation vibrations, rotation, friction and collisions of molecules. This is manifested as heat, hence the microwave energy is changed into the thermal energy.
  • the asphalt material is uniformly heated within the whole cross-section, since the microwave radiation penetrates the whole wearing course of the asphalt surface. At this no degradation of asphalt binder by material overheating occurs and the uniform heating enables optimal control of temperature, to which the material is heated.
  • the device according to the invention enables heating of asphalt mixtures in an energy-saving way, while it is applicable also for repairs of wet or frozen points, since thanks to effect of the homogenous microwave radiation a complete drying up of the repaired point occurs.
  • the device according to the invention doesn't require application of any binding agent or sealing material, since by heating of the pothole vicinity and addition of the hot packaged asphalt mixture a perfectly strong and homogenous connection will result.
  • Indispensable is also environmental contribution, since a simplification of the technological process and transport of the necessary repair material, waste material and energy used occurs.
  • Fig. 1 shows the temperature field within the working area of the device for heating of asphalt and similar mixtures and road pavement potholes utilising the hitherto inventions
  • Fig. 2 shows the temperature field within the working area of the device for heating of asphalt and similar mixtures and road pavement potholes utilising the invention
  • Fig. 3 shows an example of the overall conceptual solution of the device according to the invention
  • Fig. 4 shows the model embodiment of drive and control of the device according to the invention
  • Fig. 5 shows the construction embodiment of the chassis driving wheel
  • Fig. 6 shows a detail of the battery location
  • Fig. 1 shows the temperature field within the working area of the device for heating of asphalt and similar mixtures and road pavement potholes utilising the hitherto inventions
  • Fig. 2 shows the temperature field within the working area of the device for heating of asphalt and similar mixtures and road pavement potholes utilising the invention
  • Fig. 3 shows an example of the overall conceptual solution of the device according to the invention
  • Fig. 4 shows the model embodiment of drive and control of the
  • FIG. 7 shows the construction embodiment of applicator of the device for heating of asphalt and similar mixtures according to the invention
  • Fig. 8 shows the construction embodiment of the cooling air distribution
  • Fig. 9 shows the arrangement of the heating element in the device
  • Fig. 10 shows the overall arrangement of the outlet chamber
  • Fig. 11 shows the locations of the microwave generators flanges on the outlet chamber as seen from the front
  • Fig. 12 shows locations of the microwave generators flanges on the outlet chamber as seen from side
  • Fig. 13 shows the arrangement of the mixer with deflectors as seen from the bottom
  • Fig. 14 shows arrangement of the mixer with deflectors as seen from side
  • Fig. 15 shows a detailed arrangement of the drive and seating of the rotary shafts of mixers
  • Fig. 16 shows a system of control of the whole device
  • Fig. 17 shows a detail of the lifting equipment.
  • the device for heating of the asphalt and similar mixtures and repairs of asphalt surfaces consists of two basic parts, namely the chassis 2 and applicator 1 .
  • the chassis 2 is provided with the steering tow bar 3, two rear travel wheels, chassis driving wheel 4 and pushbuttons 5 for control of fore and aft travel and for the device lifting, i.e. lifting or lowering.
  • the driving wheel set 4 is located on the carrying frame 6 of the chassis 2. Inside the carrying frame 6 the motor 7 is seated, on which the maintenance-free gearbox 8 is fixed, the torque of which is transmitted directly to the disk with tyre 9.
  • the equipment which is not seated on the chassis. In such a case the stationary device is concerned, which may be used for efficient heating of the asphalt or similar mixture.
  • the source of electric power for travel and lifting is the traction battery 10, as shown in Fig. 6 . Lifting is insured by electromechanical lifting equipment 11.
  • the applicator 1 of the microwave radiation consists of the frame 36, outlet chamber 35, microwave generators 38, mixers 37, cooling and electric outfit.
  • the microwave generators 38 are sensitive electronic devices with a high voltage of approximately 4500V. At their operation an indispensable quantity of waste heat originates, which must be led out of the device. For separation of the sucked cooling air and waste excess heat the system of upper baffles 30, bottom baffles 33 and covers 34 serves.
  • the covers 34 have been designed and assembled in such a way, to prevent penetration of water to microwave generators 38.
  • the microwave generators 38 are cooled by forced air exchange with the main radial fan 32. It is possible also to use the water cooling, in particular in case of higher-output microwave generators.
  • the generators are protected against dust by filters 31. All parts of the covers are independently bonded with the protective conductor.
  • Fig. 9 shows the location of the heating element 42 and a view to switchboard 41 outfit.
  • the microwave generators 38 are fixed to the applicator 1 via the isolation insets 43 through the flanges 44 by ten bolts. Access to the drive of the mixers 37 is enabled after releasing of the cable bushings and removal of the drive casings 57.
  • Fig. 10 shows the overall arrangement of the outlet chamber 35 with frame 36, microwave generators 38, isolation insets 43, active deflectors 12, fixing pins 13 to chassis 2 and supports 14 of the microwave generators 38.
  • Locations of the flanges 44 of microwave generators 38 on the outlet chamber 35 is shown in the enclosed Figs. 11 and 12 , where the exemplary opposite flanges 44 form angle of 152° and the pitch of the neighbouring flanges 44 is 200 mm.
  • the outlet chamber 35 is provided with three mixers 37, which consist of rotary shafts 51, while on each of them there are three or four deflectors 12 set, as shown in Fig. 13 .
  • the deflectors 12 are fixed on the rotary shaft 51, they have circular shapes, while the plane of the deflector 12 forms angle of 22 to 70 degrees with the vertical plane.
  • the rotary shaft 51 for deflectors 12 is horizontal, and the deflectors 12 fixed on it are of different diameters, ranging from 120 to 320 millimetres.
  • the mixers 37 are provided with the gear synchronous motors 62.
  • the rotary shafts 51 of the mixers 37 are seated in Teflon sliding bearings 59 in the outlet chamber 35 of the applicator 1 and in ball bearings 60 of the driving units. Position of the rotary shaft 51 is fixed by lock rings 58. Connection of the synchronous motor 62 shaft with rotary shaft 51 of the mixers 37 is performed by flexible coupling 61. By means of set screws on the flexible coupling 61 it is possible to set position or turning of each mixer 37 into the initial position, to correspond to optimal requirements for their positions. Rotation of the mixers 37 is monitored by the optical gate 53 and disc with slot 54.
  • the slot 54 in the disc should enable passage of light through the optical gate 53 at initial position of the mixers 37. Position of the disc can be set by the set screw. Conductive connection of the rotary shaft 51 of the mixers 37 with the outlet chamber 35 and the device chassis is ensured by carbon brush 55 with a spring. The driving unit is protected by casing 57 of the mixers drive 37 with sealing.
  • the device for heating of the asphalt and similar mixtures and repairs of asphalt surfaces is provided with optical camera, which is not shown in the enclosed drawings and which is located inside the outlet chamber 35. Protection of the camera against action of the microwave radiation is solved by location in the stainless steel tube.
  • the optical camera image is transmitted to displaying equipment, which forms part of the machine control panel, or to removable independent displaying equipment, e.g. tablet, through a cable or wireless.
  • the device may be provided with thermal camera for automatic control of the heating period, located inside the outlet chamber 35, with protection against microwave radiation solved by location in the stainless steel tube.
  • Image from the thermal camera or from more thermal cameras, is evaluated by the control system, with automatic adjustment of the heating period based on the preset criteria, for instance the maximum temperature of asphalt surface heating of 160°C.
  • All control elements of the generator are located on the control panel 25, which is shown in Fig. 16 , and which forms part of the device bonnet. Disconnection from the device is possible by means of a connector on the connecting cable.
  • the three-phase socket on the device power supply cable serves as the main switch of the device.
  • the key-operated rotary switch 16 serves for the device switching on and off and for limiting of the device use by an unauthorised operator.
  • the control panel 25 serves for the device initiation mode switching on and off, during which the device is prepared for use, monitoring of the device status and of the working cycle.
  • Status of electric power source connection is signalled by white indicator lamp of the fifth pushbutton 18 with an indicator lamp.
  • the associated pushbutton 19 of emergency stop and emergency switching off serves for immediate disconnection of the microwave generators, motors and fans from voltage in case of danger.
  • the pushbutton 20 with an indicator lamp serves for start of heating and informs on it.
  • the second pushbutton 21 with an indicator lamp serves for stopping of heating and informs on possible fault of the device and further it serves also for resetting of a fault after its ceasing or remedying.
  • the third pushbutton 22 with an indicator lamp informs that the device is ready for the heating start.
  • the fourth pushbutton 23 with an indicator lamp informs on overheating of the device or some of the microwave generators or on the device status out of the permitted range of temperatures.
  • the device is provided also with the acoustic signalling.
  • the device for heating of the asphalt and similar mixtures and repairs of asphalt surfaces may be provided with the communication system, ensuring collection, processing and evaluation of pieces of information from the control system. For instance the following data are concerned: time and period of heating, outlet output, inlet and outlet temperature (including the maximum and mean temperatures), device coordinates and individual conditions of the device.
  • the above pieces of information may be transmitted to external displaying equipment by means of a cable or wireless.
  • the pieces of information are transmitted wireless through the mobile data transmissions to remote servers for creation of overviews and statistics, including filing.
  • the device is provided also with a number of safety elements.
  • the emergency stop pushbutton has the associated functions of emergency stop and emergency switching off. At its activation the disconnection of the power supply to the fan motor, microwave generators and mixers driving motors will occur. After the pushbutton pushing all the power conductors 230V outside the switchboard are voltage free. Remaining is only the control voltage of 24 V DC on the sensors and control panel controls.
  • the pushbutton is provided with adjustment and to start the device again it is necessary to release the pushbutton by turning. The pushbutton activates the emergency stop circuit watchdog relay.
  • the position sensor safety circuit watches position of the applicator 1 . If it is not lowered into the bottom position, which releases it, it is not possible to start heating, since the power supplied to microwave generators is disconnected.
  • the position sensor is set in such a way to switch on at the applicator position of maximum 10 mm above the ground level only.
  • the faulty condition is indicated by lighting of the second pushbutton 21.
  • To switch the heating on it is necessary to lower the applicator into the bottom position and to activate the circuit watchdog relay by pushing the second pushbutton 21.
  • the initiation program is activated, preparing the device for the heating start.
  • the main fan 32 of the device will start at high speed and temperature of the microwave generators 38 will be measured. After the temperature measuring possibly the preheating by heating element 42 will start. This condition is signalled by blinking of the third pushbutton 22 with an indicator lamp. After the heating completion the warming up of the microwave generators 38 magnetrons will occur. This finalises the initiation mode, which is signalled by lighting of the third pushbutton 22 with an indicator lamp and by blinking of pushbutton 20 with an indicator lamp, simultaneously with acoustic signalling.
  • the asphalt heating start is performed by depressing of the pushbutton 20 with an indicator lamp and it is signalled by lighting of this pushbutton and by acoustic signalling.
  • One depression of the pushbutton 20 with an indicator lamp will start heating for 5 minutes. By repeated depressing it is possible to set longer heating period.
  • the fan 32 with motor serves for removal of heat from microwave generators 38. Temperature of the microwave generators 38 is sensed by temperature sensors located at air outlet from the units. Under the air distribution cap the heating element 42 is located, which serves at the device cold start for drying of possible humidity of the microwave generators, caused by condensing. For assurance of the pothole heating uniformity the system of mixers 37 serves, rotation of the mixers is ensured by the synchronous gear motors 62 in driving units. Rotation of the mixers 37 in the driving units is monitored by optical gate 53 and disc with a slot 54. Conductive connection of the mixers shaft with the outlet chamber and the device chassis is insured by carbon brush 55 with a spring.
  • Electric power is brought to the device by movable supply with industrial plug, which at the same time serves as the main switch. Supply of electric power into the device is switched on by insertion of the industrial plug.
  • the device distributions up to the main circuit breaker are protected by fore protection, i.e. by circuit breaker of the diesel set or other source.
  • the power section of the circuit is connected via terminal box.
  • circuit breakers protect auxiliary circuits of the device, i.e. the fan, heating and circuits of the microwave generators heating. Further circuit breaker protects and supplies source of the control voltage 24V and synchronous motors of the mixers drive. Independent circuit breakers protect the circuits of power supply to microwave generators.
  • the device for heating of asphalt and similar mixtures and repairs of asphalt surfaces according to the invention is utilised in the following way. First it is necessary to perform cleaning of the repaired surface, i.e. removal of all freed parts of the original surface and other dirt in the pothole, e.g. by compressed air, and further also possible drying of the repaired surface.
  • bonding primer Following is application of bonding primer onto the repaired surface, which will ensure more efficient absorption of microwave radiation and thus it concentrates the microwave heating to locations of application. At the same time the application of bonding primer treats the surface of damaged location of the road pavement by causing the asphalt substance polymerisation. Longer polymers of asphalt components have better mechanical and physical properties and longer durability.
  • Subsequent heating is ensured by approximately 35 minute action of microwaves of e.g. 7.2 kW output, which is concentrated to the location treated with bonding primer. Duration of heating depends on initial temperature of surface and its humidity. With decreasing temperature and higher humidity the period necessary for heating to temperature over 110°C extends.
  • the asphalt mixture is added to the repaired locations, the mixture being preheated to temperature within 120 - 140°C range in microwave oven, which is of similar concept as the described invention, only the microwave heating is ensured in enclosed volume of the oven.
  • the mixture is added and levelled at slightly higher layer.
  • the asphalt mixture is heated simultaneously with heating of the road pavement. Thanks to heating of the repair spot the system is not depending on operation of the asphalt mixing plants and it can utilise the in advance prepared hot asphalt mixture in cold state.
  • asphalt is formed mostly by a mixture of non-polar hydrocarbons with reduced ability to absorb microwaves, causing their heating insufficient, it is possible to add various additives with high absorption of microwaves, i.e. the substances, which absorb energy simultaneously by electric and magnetic fields, into the asphalt mixtures.
  • the present solution is usable for all devices utilising microwave heating, at necessity of assurance of maximum homogeneity of heating, none or limited movement of the heated material and requirement for a high mechanical resistance of the solution, e.g. with the mobile devices.
  • the device is able to measure temperature of the heated material. This serves for reaching of optimal technological temperature, which may serve for automatic control of heating and for further processing, evaluation, sharing or filing.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Road Repair (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Claims (11)

  1. Dispositif destiné au chauffage d'asphalte et de mélanges similaires et à la réparation de surfaces bitumées, muni d'au moins un générateur de micro-ondes (38) et de système de commande, sachant que la chambre de sortie (35) est munie d'au moins un mélangeur (37), sur lequel est fixé au moins un déflecteur (12), et ce sur un arbre horizontal rotatif (5'1), pour la dispersion de micro-ondes générées par le générateur de micro-ondes mentionné, caractérisé en ce qu'au moins un déflecteur comprend deux déflecteurs (12) avec divers diamètres de 100 à 350 millimètres.
  2. Dispositif destiné notamment au chauffage d'asphalte et de mélanges similaires et aux réparations de surfaces bitumées, selon la revendication 1, et caractérisé en ce que la forme du déflecteur (12) est ronde, sachant que le plan du déflecteur (12) forme un angle de 20 à 70 degrés avec le plan vertical.
  3. Dispositif destiné notamment au chauffage d'asphalte et de mélanges similaires et aux réparations de surfaces bitumées, selon la revendication 1, et caractérisé en ce que le système de commande est partiellement relié au dispositif de mesure de température du mélange chauffé et/ou de la surface bitumée en réparation et partiellement à la commande des arbres rotatifs (51).
  4. Dispositif destiné notamment au chauffage d'asphalte et de mélanges similaires et aux réparations de surfaces bitumées, selon la revendication 1, et caractérisé en ce que le générateur de micro-ondes (38) et le système de commande sont placés sur le châssis (2), qui est muni d'un dispositif de traction de commande (3) avec au minimum une roue motrice avant (4).
  5. Dispositif destiné notamment au chauffage d'asphalte et de mélanges similaires et aux réparations de surfaces bitumées, selon la revendication 1, et caractérisé en ce que le générateur de micro-ondes (38) est muni d'un ventilateur (32) avec distributions (39) d'air de refroidissement ou de refroidissement à eau.
  6. Dispositif destiné notamment au chauffage d'asphalte et de mélanges similaires et aux réparations de surfaces bitumées, selon la revendication 1, et caractérisé en ce que le périmètre inférieur de la chambre de sortie (35) est muni d'une brosse de filtrage (47) en fibres de carbone.
  7. Dispositif destiné notamment au chauffage d'asphalte et de mélanges similaires et aux réparations de surfaces bitumées, selon la revendication 3, et caractérisé en ce que les arbres rotatifs (51) des mélangeurs (37) sont reliés aux moteurs (62) par un raccord flexible (61), alors que les arbres rotatifs (51) sont logés dans la chambre de sortie (35) à l'aide des paliers (59).
  8. Dispositif destiné notamment au chauffage d'asphalte et de mélanges similaires et aux réparations de surfaces bitumées, selon la revendication 5, et caractérisé en ce que le système de refroidissement des générateurs de micro-ondes (38) est équipée d'un élément chauffant (42).
  9. Dispositif destiné notamment au chauffage d'asphalte et de mélanges similaires et aux réparations de surfaces bitumées, selon la revendication 1, et caractérisé en ce que les mélangeurs (37) sont munis d'une porte optique (53) et d'un disque avec fente (54).
  10. Dispositif destiné notamment au chauffage d'asphalte et de mélanges similaires et aux réparations de surfaces bitumées, selon la revendication 1, et caractérisé en ce que la chambre de sortie (35) est munie d'une caméra optique.
  11. Dispositif destiné notamment au chauffage d'asphalte et de mélanges similaires et aux réparations de surfaces bitumées, selon la revendication 1, et caractérisé en ce que la chambre de sortie (35) est munie d'une caméra thermique.
EP19721826.6A 2018-04-04 2019-04-02 Dispositif, en particulier pour le chauffage d'asphalte et de mélanges similaires et de réparations de surfaces d'asphalte Active EP3775382B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2018-159A CZ308031B6 (cs) 2018-04-04 2018-04-04 Zařízení, zejména pro ohřev asfaltových a podobných směsí a opravy asfaltových ploch
PCT/IB2019/052687 WO2019193493A1 (fr) 2018-04-04 2019-04-02 Dispositif, en particulier pour le chauffage d'asphalte et de mélanges similaires et de réparations de surfaces d'asphalte

Publications (3)

Publication Number Publication Date
EP3775382A1 EP3775382A1 (fr) 2021-02-17
EP3775382B1 true EP3775382B1 (fr) 2023-11-15
EP3775382C0 EP3775382C0 (fr) 2023-11-15

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EP19721826.6A Active EP3775382B1 (fr) 2018-04-04 2019-04-02 Dispositif, en particulier pour le chauffage d'asphalte et de mélanges similaires et de réparations de surfaces d'asphalte

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EP (1) EP3775382B1 (fr)
CZ (1) CZ308031B6 (fr)
WO (1) WO2019193493A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021119857A1 (fr) * 2019-12-19 2021-06-24 Pontificia Universidad Católica De Chile Dispositif pour la réparation de fissures dans les revêtements d'asphalte au moyen de l'utilisation de micro-ondes qui augmente la température de l'asphalte depuis la surface, ce qui produit l'auto-réparation du matériau avec une intervention minimale
WO2021168029A1 (fr) * 2020-02-18 2021-08-26 Holodnak Gary J Système de pile à micro-ondes et procédé de traitement d'asphalte
CZ309008B6 (cs) 2020-12-15 2021-11-18 FUTTEC a.s. Způsob opravy asfaltových povrchů a zařízení k provádění tohoto způsobu
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CZ2018159A3 (cs) 2019-11-06
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EP3775382A1 (fr) 2021-02-17

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