EP1668185A1 - Heating machine for the reclaiming of draining or not draining road bituminous layers - Google Patents

Heating machine for the reclaiming of draining or not draining road bituminous layers

Info

Publication number
EP1668185A1
EP1668185A1 EP04770796A EP04770796A EP1668185A1 EP 1668185 A1 EP1668185 A1 EP 1668185A1 EP 04770796 A EP04770796 A EP 04770796A EP 04770796 A EP04770796 A EP 04770796A EP 1668185 A1 EP1668185 A1 EP 1668185A1
Authority
EP
European Patent Office
Prior art keywords
heating
combustion chamber
reclaiming
road
machine
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.)
Withdrawn
Application number
EP04770796A
Other languages
German (de)
French (fr)
Inventor
Giuseppe c/o Socotherm Italia S.P.A. FRACASSO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Socotherm Italia SpA
Original Assignee
Socotherm Italia SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Socotherm Italia SpA filed Critical Socotherm Italia SpA
Publication of EP1668185A1 publication Critical patent/EP1668185A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • This patent relates to a new method for the heating of road bituminous layers, and to the related machines for the reclaiming of road bituminous layers; in particular it concerns the heating machines for the reclaiming of draining or not draining road bituminous layers.
  • Road bituminous layers are reclaimed by means of a process that comprises the deep heating to high temperatures of the road pavement, the following scarification, the mixing on the road site of the scarified material, of the aggregate and of the added bituminous conglomerate, and the finish of the reclaimed material by means of pressing, rolling, and optional surface roughening.
  • the heating of road bituminous layers that need to be reclaimed is actually realized by means of a variety of gas burners directed towards the pavement.
  • the heating by means of more gas burners directed towards the pavement implies the use of a large amount of gas that has to be stocked in specific tanks. Said tanks can constitute a source of danger both for the large amount of GPL gas stocked on the roadway, and for the difficulties in the organization and the transfer of the gas loads to the heating machines.
  • Another system comprised a pure radiative pre-heater made of various steel cylindrical tubes, one next to the other, the surface of which was heated by the fumes of the gas oil microbumers where the combustion was realized inside said tubes.
  • the system has a low thermal yield besides presenting difficulties in the stabilization of the combustion of each burner.
  • Aim of the new machine for the heating of bituminous road layers is to heat the road bituminous layer that has to be reclaimed using a smaller amount of energy and/or gas in complete safety.
  • Another aim of the new machine is to heat the superior layer of the road pavement using all the heat generated, without wasting it.
  • Another aim of the new machine is to heat the superior layer of the road pavement in order to reach an adequate temperature without carbonizing and/or modifying the chemical structure of the surface of the pavement.
  • Another aim of the new machine is to heat the pavement layer directly and deeply using the electromagnetic waves, and in particular microwaves, without any risk for the people.
  • These and other direct and complementary aims are achieved by a new method for the heating of road bituminous layers by means of electromagnetic waves utilizing gasses, like C0 2 and overheated steam, capable of performing exchanges by emission of IR radiations, and by a new machine for the heating of road bituminous layers for their reclaiming comprising a vehicle supporting a combustion chamber, preferably with parallelepiped shape, opened in the lower part and in direct contact with the surface that has to be heated.
  • the combustion chamber that is made of an upper wall, lateral walls and the pavement to be treated itself, is positioned below the structure of the vehicle, between the front wheels and the rear wheels, it has one or more burners in horizontal position fit for heating the inside of the combustion chamber and so the road pavement. Another burner provides to the heating of the water, producing steam that is blown in the combustion chamber in order to improve the heat exchange with the road pavement.
  • Both the combustion gasses, totally or partially, and the steam, after their passing through the combustion chamber, are sucked, heated again and re- introduced into the combustion chamber.
  • the machine is provided with an independent locomotive system, by motorizing all the wheels with hydraulic engines interlocked by a variable capacity pump.
  • the front wheels and the back wheels are steering in order to permit to precisely follow any route.
  • the whole loading platform, the chamber of combustion included, can be lifted by means of hydraulic cylinders.
  • the heating of the road pavement is realized using C02 gas and/or overheated steam capable of emitting optimum heating frequencies for the heating of the road pavement. It is known that the IR absorption spectrum of bitumen shows two wide absorption picks corresponding to a wave length of 0.0036 mm and 0.0066 mm. It follows that the minimum temperatures to obtain an efficient exchange are respectively 538°C and 162°C. So, the most interesting zone for the energy exchange, without having excessive overheating of the superficial layer of the pavement, is the second one. The layer of burnt flue gasses, and so the absence of free oxygen, avoids the happening of oxidation effects and further aging. It has been also noticed that in order to increase the heat exchange, that is the machine efficiency, the amount of molecules per surface unit has to be increased, by increasing the pressure or the height of the combustion chamber.
  • the new machine comprises a vehicle (M), provided with its own motorization and moving on at least two couple of wheels (R), front and rear. Both the front wheels (R) and the rear wheels (R) are steering, in order to permit to the new machine to follow any route.
  • M vehicle
  • R wheel
  • Both the front wheels (R) and the rear wheels (R) are steering, in order to permit to the new machine to follow any route.
  • combustion chamber is positioned between the front wheels (R) and the rear wheels (R), in the lower part of the structure of the machine.
  • Said combustion chamber (C) is made of five thermo-insulated metallic walls positioned in a way to form a parallelepiped without a bottom surface that is the road pavement itself. (MS).
  • Said combustion chamber (C) is applied to the lower part of the structure of the machine so that the edges of the vertical walls of the combustion chamber itself (C) are almost in contact with the road pavement (MS).
  • the lateral walls of the combustion chamber (C) can be translated sideways by means of hydraulic pistons in a way to adapt the combustion chamber (O) to the width of the road pavement (MS) that has to be heated.
  • Suitable bellows or other similar mechanisms assure the closing and the holding between the lateral translating walls and the other walls of the combustion chamber (C).
  • the new machine is provided with four or more hydraulic cylinders (Re) acting directly on the wheels (R) so that to bring the lower edges of the wall of the combustion chamber (C) in contact with the road pavement (MS) or to lift the combustion chamber (C) from the road pavement (MS).
  • hydraulic cylinders (Re) acting directly on the wheels (R) so that to bring the lower edges of the wall of the combustion chamber (C) in contact with the road pavement (MS) or to lift the combustion chamber (C) from the road pavement (MS).
  • gas-oil burners (Gl) directed to the inside of the combustion chamber (C).
  • Said gas oil burners (Gl) generally horizontal, are fit for blowing the combustion gasses in the inside of the combustion chamber (C).
  • the combustion chamber (C) On the structure of the new machine, preferably on the loading platform on which the combustion chamber (C) is applied there are one water tank (A) with delivery pump (P), an aspirator-conveyor (V), a gas-gas exchangers (L) inside which there is a vaporizer (X), one or more further gas-oil burners (G2) and a gas-oil tank (S).
  • A water tank
  • P delivery pump
  • V aspirator-conveyor
  • L gas-gas exchangers
  • X vaporizer
  • G2 further gas-oil burners
  • S gas-oil tank
  • the gas-gas exchanger (L) is made of a closed structure, preferably a parallelepiped, subdivided in two parts, upper and lower, by the vaporizer (X).
  • the back wall of the lower part of the gas-gas exchanger (L) is connected with the back wall of the combustion chamber (C) while the aspirator- conveyor (V) is connected with the front wall of the combustion chamber (C), from which it sucks, and with the front wall of the lower part of the gas-gas exchanger (L),in which it blows.
  • the delivery pump (P) draws the water from the water tank (A) and sends it to the vaporizer (X) positioned inside the gas-gas exchanger (L).
  • the upper part of the gas-gas exchanger (L) is connected to the outside by means of a flue (LI) for the expulsion of exhaust gas of said burners (G2).
  • the gas-oil tank (S) is fit for containing the feeding fuel of the burners (Gl) of the combustion chamber (C) and the burners (G2) of the gas-gas exchanger (L).
  • the new machine for the heating of road bituminous layers for their reclaiming allows the heating of the road pavement by three operative modalities: by means of only inert gasses, by means of only overheated steam, by means of inert gasses and overheated steam (and/or C0 2 ).
  • the heating of the road pavement (MS) by only inert gasses comprises the functioning of just the gas-oil burners (Gl) of the combustion chamber (C). Said burners (Gl) blow their combustion gasses (inert) into the combustion chamber (C). Said combustion gasses (inert) heat the internal volume of the combustion chamber (C) transferring their heat to the road pavement (MS) that acts as bottom wall of the combustion chamber (C) itself.
  • the heating of the road pavement (MS) by means of just the overheated steam comprises the functioning of the delivery pump (P), of the vaporizer (X), of the aspirator-conveyor (V) of the gas-oil burners (G2) of the gas-gas exchanger (L).
  • the delivery pump (P) draws the water from the tank (A) and sends it to the vaporizer (X).
  • the burners (G2) of the gas-gas exchanger (L) heat the vaporizer (X) so that the water turns into high temperature steam and flows into the lower part of the gas-gas exchanger (L).
  • the aspirator-conveyor (V) pushes the high temperature steam into the combustion chamber (C) in which said high temperature steam transfers its heat to the portion of road pavement (MS) contained by said combustion chamber (C).
  • the heating of the road pavement (MS) by means of inert gasses and overheated steam contemplates the contemporaneous functioning of the burners (Gl), of the combustion chamber (C), of the burners (G2), of the gas-gas-exchanger (L), of the aspirator-conveyor (V) and of the vaporizer
  • the water vaporized by the vaporizer (X) is blown in the combustion chamber (C) inside which the corresponding burners (Gl) introduce the combustion gasses (inert) in the same chamber (C).
  • the heating of the road pavement (MS) is performed both by transfer of the heat of the combustion gasses, and by the transfer of the heat of high temperature steam. Said steam is drawn on the opposite side of the combustion chamber (C) again heated and integrated of the possible losses and reintroduced in the combustion chamber (C).
  • the new machine for the heating of the road pavement (MS) for their reclaiming realized as afore described has many advantages.
  • the heating of the road pavement (MS) is realized by means a layer of inert gasses and/or steam, heated to high temperature. Said amount of gas emits radiation at frequencies that heat the road pavement (MS) deeply, transferring to it the bigger amount of thermal energy without damaging the surface or the structure of the pavement (MS) itself.
  • the heating of the road pavement is realized by three operative modalities, depending on the necessity or requirements.
  • the heat exchange both between inert gasses and pavement (MS) and between high temperature steam and pavement (MS) allows the best heating of the pavement itself (MS) with the maximum heat, or thermal energy, transfer.
  • the heating of the pavement (MS), by utilizing both inert gasses and high temperature steam and or C02 allows a high energy exchange keeping the combustion gasses (inert) temperature relatively low and containing in the meantime the maximum surface temperature of the pavement (MS) in a way not to carbonize the bitumen or to cause the brake of the molecule.
  • the layer of exhaust gasses, and so the absence of free oxygen, causes a further advantage consisting on the complete protection of the bitumen of the pavement (MS) from oxidation effects or further aging.

Abstract

It is a new machine for the reclaiming of draining road bituminous layers by means of heating comprising a vehicle (M) supporting in the lower part a combustion chamber, substantially a parallelepiped, opened in the lower part and in direct contact with the surface that has to be heated, and provided with one or more burners (G l) disposed horizontally fit for heating the combustion chamber (C) and so the road pavement (MS). A delivery pump (P) draws water from a tank (A) and sends it to the vaporizer (X) included in a gas-gas exchanger (L), heated by another burner (G2). The produced steam is blown by an aspirator-conveyor (V) into a combustion chamber (C), in order to improve the heat exchange with the road pavement (MS). Both the combustion gases and the steam, after their passing through the combustion chamber (C), are sucked, heated again and reintroduced into the combustion chamber (C).

Description

HEATING MACHINE FOR THE RECLAIMING OF DRAINING OR NOT DRAINING ROAD BITUMINOUS LAYERS DESCRIPTION This patent relates to a new method for the heating of road bituminous layers, and to the related machines for the reclaiming of road bituminous layers; in particular it concerns the heating machines for the reclaiming of draining or not draining road bituminous layers. Road bituminous layers are reclaimed by means of a process that comprises the deep heating to high temperatures of the road pavement, the following scarification, the mixing on the road site of the scarified material, of the aggregate and of the added bituminous conglomerate, and the finish of the reclaimed material by means of pressing, rolling, and optional surface roughening. The heating of road bituminous layers that need to be reclaimed is actually realized by means of a variety of gas burners directed towards the pavement.
The heating by means of more gas burners directed towards the pavement implies the use of a large amount of gas that has to be stocked in specific tanks. Said tanks can constitute a source of danger both for the large amount of GPL gas stocked on the roadway, and for the difficulties in the organization and the transfer of the gas loads to the heating machines. Another system comprised a pure radiative pre-heater made of various steel cylindrical tubes, one next to the other, the surface of which was heated by the fumes of the gas oil microbumers where the combustion was realized inside said tubes. The system has a low thermal yield besides presenting difficulties in the stabilization of the combustion of each burner. In order to overcome to the above cited drawbacks a new machine for the heating of road bituminous layers, for their reclaiming has been studied and carried out.
Aim of the new machine for the heating of bituminous road layers is to heat the road bituminous layer that has to be reclaimed using a smaller amount of energy and/or gas in complete safety.
Another aim of the new machine is to heat the superior layer of the road pavement using all the heat generated, without wasting it.
Another aim of the new machine is to heat the superior layer of the road pavement in order to reach an adequate temperature without carbonizing and/or modifying the chemical structure of the surface of the pavement.
Another aim of the new machine is to heat the pavement layer directly and deeply using the electromagnetic waves, and in particular microwaves, without any risk for the people. These and other direct and complementary aims are achieved by a new method for the heating of road bituminous layers by means of electromagnetic waves utilizing gasses, like C02 and overheated steam, capable of performing exchanges by emission of IR radiations, and by a new machine for the heating of road bituminous layers for their reclaiming comprising a vehicle supporting a combustion chamber, preferably with parallelepiped shape, opened in the lower part and in direct contact with the surface that has to be heated.
The combustion chamber, that is made of an upper wall, lateral walls and the pavement to be treated itself, is positioned below the structure of the vehicle, between the front wheels and the rear wheels, it has one or more burners in horizontal position fit for heating the inside of the combustion chamber and so the road pavement. Another burner provides to the heating of the water, producing steam that is blown in the combustion chamber in order to improve the heat exchange with the road pavement.
Both the combustion gasses, totally or partially, and the steam, after their passing through the combustion chamber, are sucked, heated again and re- introduced into the combustion chamber.
In the combustion chamber carbon dioxide and/or steam are introduced; the decay of the excited state of the molecules causes the emission of electromagnetic waves, also in the field of microwave, in addiction to the surface conductive effect.
The machine is provided with an independent locomotive system, by motorizing all the wheels with hydraulic engines interlocked by a variable capacity pump. The front wheels and the back wheels are steering in order to permit to precisely follow any route. The whole loading platform, the chamber of combustion included, can be lifted by means of hydraulic cylinders.
The heating of the road pavement is realized using C02 gas and/or overheated steam capable of emitting optimum heating frequencies for the heating of the road pavement. It is known that the IR absorption spectrum of bitumen shows two wide absorption picks corresponding to a wave length of 0.0036 mm and 0.0066 mm. It follows that the minimum temperatures to obtain an efficient exchange are respectively 538°C and 162°C. So, the most interesting zone for the energy exchange, without having excessive overheating of the superficial layer of the pavement, is the second one. The layer of burnt flue gasses, and so the absence of free oxygen, avoids the happening of oxidation effects and further aging. It has been also noticed that in order to increase the heat exchange, that is the machine efficiency, the amount of molecules per surface unit has to be increased, by increasing the pressure or the height of the combustion chamber.
The characteristics of the new machine for the heating of road bituminous layers for their reclaiming will be clarified by the following description, referring to the figures attached as a non-limitative example. The new machine comprises a vehicle (M), provided with its own motorization and moving on at least two couple of wheels (R), front and rear. Both the front wheels (R) and the rear wheels (R) are steering, in order to permit to the new machine to follow any route.
Between the front wheels (R) and the rear wheels (R), in the lower part of the structure of the machine, the combustion chamber is positioned. Said combustion chamber (C) is made of five thermo-insulated metallic walls positioned in a way to form a parallelepiped without a bottom surface that is the road pavement itself. (MS).
Said combustion chamber (C) is applied to the lower part of the structure of the machine so that the edges of the vertical walls of the combustion chamber itself (C) are almost in contact with the road pavement (MS). The lateral walls of the combustion chamber (C) can be translated sideways by means of hydraulic pistons in a way to adapt the combustion chamber (O) to the width of the road pavement (MS) that has to be heated. Suitable bellows or other similar mechanisms assure the closing and the holding between the lateral translating walls and the other walls of the combustion chamber (C).
The new machine is provided with four or more hydraulic cylinders (Re) acting directly on the wheels (R) so that to bring the lower edges of the wall of the combustion chamber (C) in contact with the road pavement (MS) or to lift the combustion chamber (C) from the road pavement (MS). In correspondence with the back vertical wall of the combustion chamber (C) there are one or more gas-oil burners (Gl), directed to the inside of the combustion chamber (C). Said gas oil burners (Gl), generally horizontal, are fit for blowing the combustion gasses in the inside of the combustion chamber (C).
On the structure of the new machine, preferably on the loading platform on which the combustion chamber (C) is applied there are one water tank (A) with delivery pump (P), an aspirator-conveyor (V), a gas-gas exchangers (L) inside which there is a vaporizer (X), one or more further gas-oil burners (G2) and a gas-oil tank (S).
The gas-gas exchanger (L) is made of a closed structure, preferably a parallelepiped, subdivided in two parts, upper and lower, by the vaporizer (X).
The back wall of the lower part of the gas-gas exchanger (L) is connected with the back wall of the combustion chamber (C) while the aspirator- conveyor (V) is connected with the front wall of the combustion chamber (C), from which it sucks, and with the front wall of the lower part of the gas-gas exchanger (L),in which it blows.
The delivery pump (P) draws the water from the water tank (A) and sends it to the vaporizer (X) positioned inside the gas-gas exchanger (L). The upper part of the gas-gas exchanger (L) is connected to the outside by means of a flue (LI) for the expulsion of exhaust gas of said burners (G2). The gas-oil tank (S) is fit for containing the feeding fuel of the burners (Gl) of the combustion chamber (C) and the burners (G2) of the gas-gas exchanger (L). The new machine for the heating of road bituminous layers for their reclaiming, realized as afore described, allows the heating of the road pavement by three operative modalities: by means of only inert gasses, by means of only overheated steam, by means of inert gasses and overheated steam (and/or C02).
The heating of the road pavement (MS) by only inert gasses comprises the functioning of just the gas-oil burners (Gl) of the combustion chamber (C). Said burners (Gl) blow their combustion gasses (inert) into the combustion chamber (C). Said combustion gasses (inert) heat the internal volume of the combustion chamber (C) transferring their heat to the road pavement (MS) that acts as bottom wall of the combustion chamber (C) itself. The heating of the road pavement (MS) by means of just the overheated steam comprises the functioning of the delivery pump (P), of the vaporizer (X), of the aspirator-conveyor (V) of the gas-oil burners (G2) of the gas-gas exchanger (L).
The delivery pump (P) draws the water from the tank (A) and sends it to the vaporizer (X).
The burners (G2) of the gas-gas exchanger (L) heat the vaporizer (X) so that the water turns into high temperature steam and flows into the lower part of the gas-gas exchanger (L).
The aspirator-conveyor (V) pushes the high temperature steam into the combustion chamber (C) in which said high temperature steam transfers its heat to the portion of road pavement (MS) contained by said combustion chamber (C). The same aspirator-conveyor (V), in addiction, draws the steam, that has already transferred part of its heat, on the opposite side of the combustion chamber (C) and reintroduces it into the gas-gas exchanger (L) inside which it is heated once again and recirculated.
The heating of the road pavement (MS) by means of inert gasses and overheated steam contemplates the contemporaneous functioning of the burners (Gl), of the combustion chamber (C), of the burners (G2), of the gas-gas-exchanger (L), of the aspirator-conveyor (V) and of the vaporizer
(X).
The water vaporized by the vaporizer (X) is blown in the combustion chamber (C) inside which the corresponding burners (Gl) introduce the combustion gasses (inert) in the same chamber (C). The heating of the road pavement (MS) is performed both by transfer of the heat of the combustion gasses, and by the transfer of the heat of high temperature steam. Said steam is drawn on the opposite side of the combustion chamber (C) again heated and integrated of the possible losses and reintroduced in the combustion chamber (C).
The new machine for the heating of the road pavement (MS) for their reclaiming realized as afore described has many advantages. The heating of the road pavement (MS) is realized by means a layer of inert gasses and/or steam, heated to high temperature. Said amount of gas emits radiation at frequencies that heat the road pavement (MS) deeply, transferring to it the bigger amount of thermal energy without damaging the surface or the structure of the pavement (MS) itself.
The heating of the road pavement (MS) is realized by three operative modalities, depending on the necessity or requirements. The heat exchange both between inert gasses and pavement (MS) and between high temperature steam and pavement (MS) allows the best heating of the pavement itself (MS) with the maximum heat, or thermal energy, transfer.
The heating of the pavement (MS), by utilizing both inert gasses and high temperature steam and or C02 allows a high energy exchange keeping the combustion gasses (inert) temperature relatively low and containing in the meantime the maximum surface temperature of the pavement (MS) in a way not to carbonize the bitumen or to cause the brake of the molecule. The layer of exhaust gasses, and so the absence of free oxygen, causes a further advantage consisting on the complete protection of the bitumen of the pavement (MS) from oxidation effects or further aging.
With reference to the above description the following claims are put forth.

Claims

CLAIMS 1. Method for the heating of road bituminous layers (MS) for their reclaiming characterized in that it comprises the heating of road bituminous layers (MS), also in depth, by means of generation of electromagnetic waves, produced by emission by hot exhaust gasses molecules and/or by steam and/or by overheated C02, in addiction to the convective surface effect, and contained in a combustion chamber (C), delimited at least in one side by the road pavement (MS) itself. 2. Method for the heating of road bituminous layers (MS) for their reclaiming, according to claim 1 , characterized in that said electromagnetic waves are in the fields of the microwaves. 3. Machine for the heating of road bituminous layers (MS) for their reclaiming, comprising a vehicle (M) supporting a combustion chamber (C), characterized in that the road pavement (MS) forms the lower wall of said combustion chamber (C), and wherein the heating of the pavement (MS) is realized by the exposition to the combustion smokes. 4. Machine for the heating of road bituminous layers (MS) for their reclaiming, according to claim 3, characterized in that it is provided with one or more burners (Gl) fit for performing a combustion inside the combustion chamber (C) delimited in the lower part by the road pavement (MS). 5. Machine for the heating of road bituminous layers (MS) for their reclaiming, according to claims 3, 4, and wherein by inletting overheated heat into said combustion chamber (C), the heat exchange is increased through the partial or total modification of the composition of the gasses contained in it. 6. Machine for the heating of road bituminous layers (MS) for their reclaiming, as in claims 3, 4, and wherein by inletting C02 into said combustion chamber (C), the heat exchange is increased through the partial or total modification of the composition of the gasses contained in it. 7. Machine for the heating of road bituminous layers (MS) for their reclaiming, according to the previous claims, wherein on said vehicle (M) structure there is a gas-gas exchanger (L) with separated fluids, and wherein the exhaust gasses drawn from the combustion chamber (C), by means of a aspirator-conveyor (V), are overheated and reintroduced into the combustion chamber (C). 8. Machine for the heating of road bituminous layers (MS) for their reclaiming, according to claim 7, and wherein the aspirator-conveyor (V) draws the gasses from the side opposite to the one from which it is reintroduced. 9. Machine for the heating of road bituminous layers (MS) for their reclaiming, according to the previous claims, wherein the combustion chamber (C) is made of thermo-insulated metallic walls, disposed as to form a parallelepiped. 10. Machine for the heating of road bituminous layers (MS) for their reclaiming, according to the previous claims, characterized in that the lateral walls of the combustion chamber (C) can be translated sideways, in order to adapt said combustion chamber (C) to the width of the road pavement (MS) that has to be heated. 11. Machine for the heating of road bituminous layers (MS) for their reclaiming, according to the previous claims, wherein suitable bellows or other similar mechanisms assure the closing and the holding between the lateral walls and the road pavement (MS) 12. Machine for the heating of road bituminous layers (MS) for their reclaiming, as in previous claims, wherein the vehicle (M) structure can be lifted on its wheels and/or tracks (R) in order to lift or lower the walls on the combustion chamber (C) on the road pavement (MS). 13. Machine for the heating of road bituminous layers (MS) for their reclaiming, as in previous claims, wherein all the wheels or tracks (R) of the vehicle (M) are steering.
EP04770796A 2003-09-26 2004-09-21 Heating machine for the reclaiming of draining or not draining road bituminous layers Withdrawn EP1668185A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD20030227 ITPD20030227A1 (en) 2003-09-26 2003-09-26 HEATING MACHINE FOR REGENERATION OF
PCT/IT2004/000514 WO2005031070A1 (en) 2003-09-26 2004-09-21 Heating machine for the reclaiming of draining or not draining road bituminous layers

Publications (1)

Publication Number Publication Date
EP1668185A1 true EP1668185A1 (en) 2006-06-14

Family

ID=34385828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04770796A Withdrawn EP1668185A1 (en) 2003-09-26 2004-09-21 Heating machine for the reclaiming of draining or not draining road bituminous layers

Country Status (4)

Country Link
EP (1) EP1668185A1 (en)
CN (1) CN1738946A (en)
IT (1) ITPD20030227A1 (en)
WO (1) WO2005031070A1 (en)

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USD700633S1 (en) 2013-07-26 2014-03-04 Heatwurx, Inc. Asphalt repair device
US8801325B1 (en) 2013-02-26 2014-08-12 Heatwurx, Inc. System and method for controlling an asphalt repair apparatus
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US8556536B2 (en) 2009-01-02 2013-10-15 Heatwurx, Inc. Asphalt repair system and method
US8562247B2 (en) 2009-01-02 2013-10-22 Heatwurx, Inc. Asphalt repair system and method
US8714871B2 (en) 2009-01-02 2014-05-06 Heatwurx, Inc. Asphalt repair system and method
US9022686B2 (en) 2009-12-31 2015-05-05 Heatwurx, Inc. System and method for controlling an asphalt repair apparatus
US9416499B2 (en) 2009-12-31 2016-08-16 Heatwurx, Inc. System and method for sensing and managing pothole location and pothole characteristics
US8801325B1 (en) 2013-02-26 2014-08-12 Heatwurx, Inc. System and method for controlling an asphalt repair apparatus
USD700633S1 (en) 2013-07-26 2014-03-04 Heatwurx, Inc. Asphalt repair device

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CN1738946A (en) 2006-02-22
WO2005031070A1 (en) 2005-04-07
ITPD20030227A1 (en) 2005-03-27

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