EP3717700A1 - Ensemble cartouche de fonte d'un liant hydrocarboné et receptacle chauffant d'une telle cartouche; centrale d'enrobage associée - Google Patents
Ensemble cartouche de fonte d'un liant hydrocarboné et receptacle chauffant d'une telle cartouche; centrale d'enrobage associéeInfo
- Publication number
- EP3717700A1 EP3717700A1 EP18811778.2A EP18811778A EP3717700A1 EP 3717700 A1 EP3717700 A1 EP 3717700A1 EP 18811778 A EP18811778 A EP 18811778A EP 3717700 A1 EP3717700 A1 EP 3717700A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cartridge
- heating
- receptacle
- wall
- partition
- 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
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
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/10—Melting
- C10C3/12—Devices therefor
Definitions
- the invention relates to the field of casting a hydrocarbon binder for asphalt, in particular for use in public works or private individuals. More particularly, the invention relates to a device for melting a hydrocarbon binder and the corresponding coating plant comprising such a melting device.
- One of the aims of the present invention is therefore to at least partially overcome the disadvantages of the prior art and to provide an improved hydrocarbon binder melting and storage device and the associated coating plant.
- Another object of the present invention is also to facilitate the use of colored hydrocarbon binder for the production of colored mix.
- the present invention thus relates to a cartridge / heating receptacle assembly for melting a hydrocarbon binder
- the cartridge being adapted to contain the hydrocarbon binder, said cartridge being configured to be inserted into the heating receptacle, said cartridge comprising a bottom wall, an upper wall and at least one side wall connecting the lower and upper walls, said cartridge comprising within it at least one heating tube whose ends are fixed to at least one side wall,
- the heating receptacle being configured to receive therein the cartridge and having a base, at least one side wall configured to surround the cartridge, and a heater disposed at the base, said heating receptacle further comprising therein, at least two partition walls projecting inwardly from its at least one side wall, said partition walls being configured to engage the side wall of the cartridge so as to define at least two air circulation spaces.
- the lower wall of the cartridge has an area smaller than that of the upper wall so that the side walls have a clearance angle of between 90 and 85 °, preferably 87.5 °.
- the cartridge comprises a discharge orifice of the molten hydrocarbon binder disposed on its upper wall, said cartridge further comprising a suction plunger tube passing through said discharge orifice, said plunger tube comprising, on the outside of the cartridge, a first end comprising a connecting device and a second end disposed inside said cartridge.
- the lower and upper walls of the cartridge are rectangular and parallel to each other, said lower and upper walls being connected by four side walls.
- the ends of the at least one heating tube of the cartridge are arranged on a plane substantially parallel to the bottom wall or the upper wall.
- the cartridge comprises:
- a first stage comprising at least a first heating tube disposed at a lower half of said cartridge
- a second stage comprising at least a second heating tube disposed at an upper half of said cartridge.
- the ends of the at least one heating tube of the cartridge are disposed on a plane substantially perpendicular to the bottom wall or the upper wall.
- the cartridge comprises at least one heating tube having a first end disposed at a lower half of the cartridge and a second end at an upper half of the cartridge.
- the heating receptacle comprises:
- a lower partition wall configured to encircle the lower half of the cartridge, said lower partition wall passing over a first end of the first heating tubes and below a second end of said first heating tubes so as to forming a circulation space for smoke and hot air between the heating device and the first end of the first heating tubes,
- An upper partition wall configured to encircle the upper half of the cartridge, said upper partition wall passing over a first end of the second heating tubes and below a second end of said second heating tubes so as to forming another flue gas circulation space and hot air between the second end of the first heating tubes and the first end of the second heating tubes.
- the heating receptacle comprises:
- a support partition on which the cartridge is intended to rest said support partition being arranged at a height greater than the heating device so as to form a first circulation space of the fumes and hot air under the cartridge,
- An intermediate partition wall configured to encircle the middle portion of the cartridge so as to form a second space for circulating the fumes and hot air between the support partition and said intermediate separating partition
- the heating receptacle comprises a water evacuation system.
- the present invention also relates to a coating plant comprising at least two cartridge / heating receptacle assemblies as described above.
- the coating plant comprises a loading hoist overhanging the heating receptacles.
- the present invention also relates to a cartridge for cartridge / heating receptacle assembly as described above, said cartridge comprising a bottom wall, an upper wall and at least one side wall making the connection between the lower and upper walls, said cartridge comprising within it. at least one heating tube whose ends are fixed to at least one side wall,
- the present invention also relates to a cartridge for cartridge / heating receptacle assembly as described above, said heating receptacle having a base, at least one side wall configured to surround a cartridge, and a heater disposed at the base, said receptacle heater further comprising therein, at least two separating partitions projecting inwardly from its at least one side wall, said separating partitions being configured to engage the side wall of the cartridge so as to define at least two air circulation spaces.
- the present invention also relates to a coating plant comprising at least two heating receptacles as described above.
- the coating plant comprises a loading hoist overhanging the heating receptacles
- FIG. 1 shows a schematic representation in perspective of a mobile coating plant
- FIG. 2 shows a schematic representation in perspective of melters of a coating plant
- FIG. 3 shows a schematic representation in section of a heating receptacle containing a cartridge according to a first embodiment
- FIG. 4 shows a schematic representation in perspective of a key bus according to the first embodiment
- FIGS. 5a and 5b show diagrammatic representations respectively of front and side of the cartridge of FIG. 4,
- FIGS. 6a and 6b show diagrammatic representations in section and in perspective of the heating receptacle of FIG.
- FIG. 7 shows a schematic representation in perspective of a key bus according to a second embodiment
- FIG. 8 shows a schematic representation in perspective of a heating receptacle according to the second embodiment
- Figure 9 shows a schematic sectional representation of a heating receptacle containing a cartridge according to the second embodiment.
- first element or second element as well as first parameter and second parameter or else first criterion and second criterion, etc.
- first criterion and second criterion etc.
- it is a simple indexing to differentiate and name elements or parameters or criteria close but not identical.
- This indexing does not imply a priority of one element, parameter or criterion with respect to another, and it is easy to interchange such denominations without departing from the scope of the present description.
- This indexing does not imply either an order in time for example to appreciate this or that criterion.
- upper and lower elements described according to their position relative to the ground and according to the gravity.
- an upper element will be positioned above a lower element along the axis of Earth's gravity.
- FIG. 1 shows a schematic representation of a mobile coating plant 1.
- This coating plant 1 comprises in particular loading hoppers 3a, 3b, in particular a loading hopper 3a of fines such as sand and a loading hopper 3b of aggregates such as gravel. These fines and aggregates are transported by a first conveyor 4 to a drying drum 5. The fines and aggregates are then mixed with a hot hydrocarbon binder within a mixing drum 6 to form the mix. At the output of the mixing drum 6, the mix is discharged via a second conveyor 7 to a temporary storage tank, to a means of transport or directly to the site for immediate use.
- Such a coating plant may in particular have a rate of asphalt production of the order of 5 to 40 tonnes per hour.
- the loading hoppers 3a, 3b, the first conveyor 4, as well as a melter 10 with a hydrocarbon binder can thus be mounted on a trailer or on a tray that can be loaded onto a trailer.
- the drying drum 5, the kneading drum 6 and the second conveyor 7 can when they are mounted on another trailer or other tray that can be loaded on a trailer.
- the hydrocarbon binder used may in particular be bitumen, a pitch, a resin or a clear binder.
- the hydrocarbon binder can also have a black color as generally used, thus obtaining a mix in black tones. However it is quite possible that this hydrocarbon binder is associated with color pigments to obtain a coating of a desired color, especially when it is a clear binder.
- the hydrocarbon binder can also comprise at least one chemical additive.
- clear binder is meant a composition comprising a plasticizer, for example an oil of petroleum or plant origin, a structuring agent, for example a hydrocarbon resin and a polymer.
- pitch is a residue of distillation of petroleum tars, oil, coal or other organic molecules.
- the “pitch” according to the invention is preferably a residue of petroleum distillation, also called “petroleum pitch”.
- the terms “pitch”, “petroleum pitch” and “deasphalting pitch” are used independently of one another.
- the hot hydrocarbon binder is obtained in a melter at which it is heated to become sufficiently fluid to be mixed with the fines and aggregates and the mix is applicable to the surface to be coated.
- the mix produced in this coating plant 1 may be a recycled mix.
- the aggregates can be replaced by previously planed asphalt crusts. It is then necessary to use a hydrocarbon binder of the soft binder type.
- a soft binder because the planed mix, and in particular the hydrocarbon binder, for example the bitumen, that it involves, has undergone an aging related to its use.
- the planed mix is generally hard and fragile because of the oxidation it undergoes during its use and breaks because its asphaltene content and its viscosity have increased over time.
- a soft binder is used in order to reduce the asphaltene content and the viscosity of the mix to obtain a recycled mix that is more manageable and more durable over time.
- the soft binder has a specific composition rich in resin and aromatic fractions and almost free of asphaltene. It is thus possible to restore the composition and the initial properties of the bitumen contained in the planed scabs, to correct the effects of the oxidation of the bitumen contained in these planed scabs, and to have a better resistance to aging.
- the soft binder used advantageously has a density at 15 ° C of between 940 and 1010 kg / m 3 , a kinematic viscosity at 100 ° C of between 50 and 85 mm 2 / s, a flash point greater than or equal to 230 ° C. , a minimum pumpability temperature of 50 ° C, and a heating mass loss of less than or equal to 2%.
- the use of a soft binder having these characteristics makes it possible to obtain a recycled mix having a needle penetration at 25 ° C. of between 25 and 35 tenths of a millimeter (dmm), which corresponds to a bitumen that meets the requirements. for a road bitumen.
- pigments may be contained in this soft binder so that the recycled bitumen has a particular color.
- An example of a soft binder having these properties and pigments is the Color 50 ® binder.
- FIG. 2 shows in more detail the melter 10 of the coating plant 1.
- the melter 10 more particularly comprises at least two heating receptacles 200, for example arranged side by side. Inside these heating receptacles 200 are removably disposed cartridges 100 containing the hydrocarbon binder. This produces a cartridge assembly 100 / heating receptacle 200 formed by a heating receptacle 200 comprising a cartridge 100 therein.
- the hydrocarbon binder may especially be in the form of loaves packed in a hot melt plastic which will be eliminated. during the heating of said cartridge 100 or cast directly into the cartridge 100.
- the heating receptacles 200 heat the cartridges 100 so that the hydrocarbon binder is at operating temperature and sufficiently fluid to be sucked by a pump 40 and be mixed with the aggregates and sand in the mixing drum 6.
- the fact of having several heating receptacles 200 allows a continuous supply of hydrocarbon binder from the kneading drum 6. Indeed, when a first cartridge 100 is empty, it is possible to switch to a second cartridge 100 whose hydrocarbon binder is already hot and melted. While the second cartridge 100 is used, it is thus possible to replace the first cartridge 100 by placing a new cartridge 100 in the first heating receptacle 200 and start melting its hydrocarbon binder.
- the coating plant 1 may include a loading hoist 300 overhanging the heating receptacles 200.
- the heating receptacle 200 may comprise a balance to determine the weight of the cartridge 100. Another solution is to use a flow meter to determine the amount of hydrocarbon binder having been sucked by the pump 40.
- melter 10 with a heating receptacle 200 and a cartridge 100, in particular increases the safety of operators who do not directly handle the hydrocarbon binder.
- a cartridge allows storage and cold transport of the hydrocarbon binder which is heated only according to demand and at the desired location.
- Figures 3 to 6b show a cartridge assembly 100 / heating receptacle 200 according to a first embodiment.
- FIG. 3 shows a sectional representation of a cartridge assembly 100 / heating receptacle 200.
- the heating receptacle 200 more particularly comprises a base 201 on which is intended to rest the cartridge 100. This base 201 may also include supports 205 so as not to rest directly on the ground.
- the heating receptacle 200 also comprises lateral partitions 203 configured to surround the cartridge 100 and fixed perpendicularly to the base 201.
- the heating receptacle 200 may in particular be made of metallic material so that the base 201 and the lateral partitions 203 are welded together. they.
- the side walls 203 may also include lateral reinforcing belts 210 to ensure good rigidity and strength of the heating receptacle 200. The number of side walls 203 may vary according to the conformation of the cartridge 100.
- the receptacle comprises a heating device 211. More specifically, one of the side walls 203 may be pierced at the base 201 in order to introduce a heating device 211.
- This heating device 211 may in particular heating the air contained in a heating cylinder 212 disposed inside the heating receptacle 200 opposite said heating device 211, between the base 201 of the heating receptacle 200 and the cartridge 100.
- the heating device 211 may be a burner for example gas or hydrocarbon.
- the side walls 203 and the cartridge 100 are separated from each other by a circulation gap to allow circulation of the heating fumes and hot air from the heater 211 to heat said cartridge 100.
- the heating receptacle 200 is open upwards, that is to say that it has no upper partition. This allows the cartridge 100 to be loaded into the heating receptacle 200 from above.
- another loading means for example by a removable or pivoting side partition 203.
- the heating receptacle 200 may also include a water discharge system (not shown). Indeed, because the heating receptacle 200 is open upwards, water, for example rainwater, can be introduced into the heating receptacle 200.
- This evacuation system thus allows to evacuate this water accumulated at the bottom of the heating receptacle 200.
- This evacuation system may for example be an orifice disposed at the base 201 and with or without a plug or a valve.
- Figures 4 to 5b show in more detail a cartridge 100 according to this first embodiment and configured to contain the hydrocarbon binder. This cartridge
- the cartridge 100 is configured to be inserted within a heating receptacle 200 according to the first embodiment.
- the cartridge 100 comprises a lower wall 101 and an upper wall 102. Side walls 103 form the connection between the lower walls.
- the various walls 101, 102, 103 of the cartridge 100 may in particular be made of metal material, for example of a thickness of 5 mm and welded together.
- Cartridge 100 may more particularly have rectangular bottom walls 101 and top 102 parallel to each other. These lower walls 101 and upper 102 are connected by four side walls 103. This rectangular section profile in particular makes it easier to store the cartridge 100 both when it contains hydrocarbon binder and when it is empty.
- the bottom wall 101 has a smaller area than the top wall 102 so that the side walls 103 have a draft angle of between 90 and 85 °, preferably 87.5 °.
- This draft angle notably makes it easier to insert and withdraw the cartridge 100 into the heating receptacle 200 from above. During insertion, the draft angle notably allows automatic centering of the cartridge 100 in the heating receptacle 200.
- the cartridge 100 for example a truncated conical shape for which the cartridge 100 would comprise circular lower walls 101 and 102 and a single frustoconical side wall 103.
- Another shape may also be obtained with triangular bottom walls 101 and upper 102 and three side walls 103 connecting them.
- the cartridge 100 and the heating receptacle 200 have a complementary shape so that the number of side walls 103 is the same as the number of side walls 203.
- Strips of side reinforcements 110 may also surround the cartridge 100 at its side walls 103 to provide good rigidity and strength. Of more these side reinforcements 110 rims can serve as a spacer when the cartridges 100 are stored and contiguous to each other. These side reinforcing rims 110 can also serve as a guide for the fumes and the hot air flowing along the cartridge 100 when it is heated within the heating receptacle 200.
- the cartridge 100 also comprises, within it, at least one heating tube 104a, 104b whose ends 104a, 104a2, 104b 1, 104b2 are fixed to at least one side wall 103.
- the ends 104a, 104a2, 104b 1, 104b2 of the at least one heating tube 104a, 104b are disposed on a plane substantially parallel to the bottom wall 101 or the top wall 102
- These heating tubes 104a, 104b are here more particularly rectilinear tubes, for example with a nominal diameter of 80mm, placed within the cartridge 100 and welded to the side walls 103, as shown in particular in FIG. however, it is quite possible to imagine a non-rectilinear heating tube 104a, 104b, for example forming a coil within the cartridge 100.
- the side walls 103 have orifices so that air can circulate within said heating tubes 104a, 104b.
- These heating tubes 104a, 104b make it possible in particular to increase the heat exchange area with the hydrocarbon binder and thus allow the faster hydrocarbon binder to melt. Indeed, when the cartridge 100 is placed in the heating receptacle 200, the fumes and hot air from the heater 211 can flow through these heating tubes 104a, 104b.
- these heating tubes 104a, 104b connect two side walls 103 located opposite each other.
- the cartridge 100 may in particular comprise several stages of heating tubes 104a, 104b, as illustrated in FIGS. 4 and 5a. It can thus include: A first stage disposed at a lower half of said cartridge
- a second stage disposed at an upper half of said cartridge
- the heating tubes 104a, 104b are more particularly arranged parallel to each other.
- a cartridge 100 may comprise more or fewer than two stages of heating tubes 104a, 104b.
- a stage of heating tubes 104a, 104b may comprise more or less two heating tubes 104a, 104b.
- each stage of heating tubes may comprise six heating tubes arranged parallel to one another.
- the cartridge 100 may also comprise support feet 105 disposed on the bottom wall 101. These support feet 105 are able to allow fumes and hot air to flow below the lower wall 101, when the cartridge 100 is installed. in the heating receptacle 200. These support feet 105 may in particular allow the heating cylinder 212 to be placed between the base 201 of the heating receptacle 200 and the bottom wall 101 of the cartridge 100. The support feet 105 also allow the use of a forklift, such as a pallet truck, to move the cartridge 100 and facilitate its handling.
- a forklift such as a pallet truck
- the cartridge 100 may further comprise a discharge orifice 106 of the molten hydrocarbon binder arranged for example on its top wall 102.
- the cartridge 100 further comprises a suction plunger tube 107, for example with a nominal diameter of 25 mm. passing through said discharge port 106.
- This plunger tube 107 has, outside the cartridge 100, a first end 107a including a connecting device including the pump 40 to suck the molten hydrocarbon binder.
- the plunger tube 107 also has a second end 107b disposed within said cartridge 100 (visible in particular in Figure 3). This second end 107b may in particular be disposed at the bottom of the cartridge 100, at its lower wall 101.
- this second end 107b of the plunger tube 107 is disposed close to heating tubes 104a, 104b.
- the hydrocarbon binder located near the heating tubes 104a, 10b will be the first to be heated and to become sufficiently fluid to be sucked. It will then be possible to start an aspiration of the hydrocarbon binder without waiting for its completeness to be at the right temperature.
- the plunger tube 107 may also include a valve 107c.
- the cartridge 100 may also comprise a compressed air inlet (not shown) disposed on its upper wall 102. The injection of compressed air, for example at 0.2 bar, at within the cartridge 100 allows an increase in the internal pressure which facilitates the suction.
- the cartridge 100 and more particularly its bottom wall 101 may also include a thermowell (not shown) extending inwardly of said cartridge 100.
- This thermowell may in particular allow the insertion of a temperature probe to to control the temperature of the hydrocarbon binder.
- This temperature probe can be fixed inside the heating receptacle 200 so as to be inserted into the thimble when the cartridge 100 is placed in the heating receptacle 200.
- the cartridge 100 may also comprise a vent 108, preferably disposed on its upper wall 102, in order to evacuate the gases during the heating of the hydrocarbon binder and to prevent a rise in pressure within the cartridge 100.
- a vent 108 preferably disposed on its upper wall 102, in order to evacuate the gases during the heating of the hydrocarbon binder and to prevent a rise in pressure within the cartridge 100.
- the cartridge 100 may also comprise a loading hatch 109 of hydrocarbon binding arranged for example on its upper wall 102.
- This loading hatch 109 may be closed and locked by screw clamping system for example.
- This loading hatch 109 may in particular be closed via a padlock or sealed so that only an authorized operator can open it and proceed to the loading of the cartridge 100 by binder hydrocarbon.
- the cartridge 100 may also comprise lifting hoops (not shown) capable of being engaged with a lifting device, in particular the hoist of Loading 300. These lifting hoops are advantageously arranged at the top wall 102 to allow attachment of the cartridge from above.
- the cartridge 100 may for example have a height of 1400 mm (with the support legs 105), a width at its upper wall 102 of 1000 mm and a depth at its upper wall 102 of 1000 mm.
- the empty weight of the cartridge 100 may be of the order of 150kg for a volume of 600 liters.
- the heating receptacle 200 may also comprise, within it, at least two separating partitions 220a, 220b protruding inwardly from its at least one lateral partition 103.
- These partitions separators 220a, 220b are more particularly configured to come into contact with the side wall 103 of the cartridge 100 so as to define at least two circulation spaces A, B smoke and air.
- these spaces circulation spaces A, B are in particular communicating with each other to form a path in which the fumes and hot air can circulate. This communication is in particular allowed by the heating tubes 104a, 104b which connect the at least two circulation spaces spaces A, B.
- These circulation spaces A, B allow optimum, rapid and as homogeneous as possible heating of the hydrocarbon binder within of the cartridge 100.
- this at least one separating partition 220a, 220b acts as a guide and also allows centering and good positioning. of the cartridge 100 when it is introduced into the heating receptacle 200.
- the heating receptacle 200 more particularly comprises:
- a lower partition wall 220a configured to encircle the lower half of the cartridge 100
- An upper partition wall 220b configured to encircle the upper half of the cartridge 100.
- the lower dividing wall 220a passes in particular over a first end 104a of the first heating tubes 104a and below a second end 104a2 of said first heating tubes 104a. This makes it possible to form a first circulation space A for fumes and for hot air between the heating device 211 and the first end 104 of the first heating tubes 104a.
- the lower partition wall 220a is more particularly disposed in a plane below the first stage of first heating tubes 104a, parallel to said heating tubes 104a.
- the separating partition has a recess 22a (shown in FIG. 6b) to pass above said first end 104a of the first heating tubes 104a.
- the upper partition wall 220b passes over a first end 104b of the second heating tubes 104b and below a second end 104b2 of said second heating tubes 104b. This makes it possible to form a second circulation space B for flue gases and hot air between the second end 104a2 of the first heating tubes 104a and the first end 104b of the second heating tubes 104b.
- the different circulation spaces A and B are more particularly visible in FIG.
- the upper partition wall 220b is more particularly arranged in a plane placed above the second stage of second heating tubes 104b, parallel to said second heating tubes 104b.
- the separating partition comprises a recess 221b (visible in FIG. 6a) so as to pass below said second end 104b2 of the second heating tubes 104b.
- the second end 104a2 of the first heating tubes 104a is disposed on a side wall opposite to the side wall carrying the first end 104b 1 of the second heating tubes 104b. This allows fumes and hot air to flow over a larger surface of the sidewalls 103 of the cartridge 100 so as to heat the hydrocarbon binder well.
- FIG. 3 is illustrated in particular by arrows the path traveled by the fumes and the hot air during the heating of the cartridge 100.
- the air is heated by the heating device 211 and hot fumes are emitted by the latter.
- the hot air and the fumes first pass into the first circulation space A, under the cartridge 100 between its support legs 105.
- the hot air and the fumes are prevented from going up on the sides of the cartridge 100 of the made of the lower partition wall 220a.
- the hot air and the fumes then join the first end of the first heating tubes 104a and pass through them.
- the hot air and the fumes then pass over the lower partition wall 220a, more precisely between the lower partition wall 220a and the upper partition wall 220b in the second circulation space B.
- the hot air and the fumes circulate in the room. interstice between the cartridge 100 and the heating receptacle 200 and join the first end of the second heating tubes 104b.
- the hot air and the fumes pass through the heating tubes 104b to pass over the upper dividing wall 220b and be evacuated. Evacuation of fumes and hot air is done for example at a stack 215 connecting the outputs of the heating tubes of the last stage of heating tubes and the outside of the heating receptacle 200.
- the fumes and hot air thus:
- a third passage along the lateral walls 103 of the cartridge 100 is not only on its width but also on its height, and
- FIGS. 7 to 9 show a cartridge assembly 100 '/ heating receptacle 200' according to a second embodiment.
- Figure 7 shows more specifically a semi-transparent perspective representation of a cartridge 100 'according to this second embodiment.
- the cartridge 100 ' comprises a bottom wall 101' and an upper wall 102 '.
- Sidewalls 103 ' make the connection between the lower walls 101' and upper 102 'so as to form an enclosure.
- the various walls 101 ', 102', 103 'of the cartridge 100' may in particular be of metal material, for example of a thickness of 5mm and welded together.
- the cartridge 100 ' may also have lower walls 101' and upper 102 'rectangular and parallel to each other. These lower walls 101 'and upper 102' are connected by four side walls 103 '. This rectangular section profile allows in particular to facilitate the storage of the cartridge 100 'both when it contains hydrocarbon binder than when it is empty.
- the lower wall 101 ' has an area smaller than that of the top wall 102' so that the side walls 103 'have a draft angle of between 90 and 85 °, preferably 87.5 °.
- This draft angle notably makes it easier to insert and withdraw the cartridge 100 'into the heating receptacle 200' from above. During insertion, the draft angle notably allows automatic centering of the cartridge 100 'in the heating receptacle 200'.
- the cartridge 100 ' for example a truncated conical shape for which the cartridge 100' would comprise lower walls 101 'and greater 102 'circular and a single frustoconical side wall 103'.
- Another shape may also be obtained with lower walls 101 'and upper 102' triangular and three side walls 103 'connecting them.
- Strips of side reinforcements 10a ', 110b' may also surround the cartridge 100 'at its side walls 103' to ensure good rigidity and solidity.
- these straps of lateral reinforcements 10A ', 11B' can serve as a spacer when the cartridges 100 'are stored and contiguous to each other.
- These side reinforcement rings 110 ' can also serve as a guide for fumes and hot air flowing along the cartridge 100' when heated within the heating receptacle 200 '.
- the cartridge 100 ' comprises within it, at least one heating tube 104' whose ends 104 '1, 104' 2 are attached to at least one side wall 103 '.
- the ends 104 ⁇ , 104'2 of the at least one heating tube 104 ' are disposed on a plane substantially perpendicular to the bottom wall 101' or the upper wall 102 '.
- These heating tubes 104 'are here more particularly tubes having a general curved profile in "C", placed within the cartridge 100 and welded to the same side wall 103'.
- cartridge 100 ' has two heating tubes 104' in "C" parallel to one another.
- heating tube 104 having a different profile, for example forming a coil within the cartridge 100', always in this plane substantially perpendicular to the bottom wall 101 'or the upper wall 102 'and whose ends can be fixed on separate side walls 103'.
- the side wall 103' has orifices so that air can circulate within said heating tubes 104 '.
- the heating tubes 104 ' preferably comprise a first end 104' disposed on the lower part of a side wall 103 ', that is to say close to the bottom wall 101'. This first end 104 ⁇ is extended by a first straight section 104 'extending substantially parallel to the bottom wall 101' towards the side wall 103 'opposite that carrying the first end 104' 1.
- the heating tubes 104 ' also comprise a second section l04'b also rectilinear and extending parallel to the first section l04'a.
- This second section 104 'b is fixed at the level of the upper part of a side wall 103', that is to say close to the top wall 102 'so as to form the second end 104 '2 of the heating tube 104'.
- this second end 104 '2 is fixed on the same side wall 103' as the first end 104 '1.
- These two sections 104'a and 104'b are connected one to the other. another by a third section l04'c which is here a rectilinear section with elbows.
- This third section 104c may also have a different shape such as, for example, a coil.
- the heating tubes 104 ' can obviously be made in one piece from bent tubes.
- heating tubes 104 make it possible in particular to increase the heat exchange surface area with the hydrocarbon binder and thus allow the hydrocarbon binder to melt faster. Indeed, when the cartridge 100 'is placed in the heating receptacle 200', the fumes and hot air from the heater 211 can flow through these heating tubes 104 '.
- a cartridge 100 ' may comprise more or fewer than two heating tubes 104'.
- the cartridge 100 ' may comprise six heating tubes 104' arranged parallel to one another.
- the cartridge 100 ' may further comprise a discharge orifice 106' of the molten hydrocarbon binder arranged for example on its upper wall 102 '.
- the cartridge 100 'further comprises a suction tube 107' (visible in Figure 9), for example a nominal diameter of 25mm, passing through said discharge port 106 '.
- This plunger tube 107 ' may comprise, outside the cartridge 100', a first end 10a comprising a connection device in particular to the pump 40 in order to suck the molten hydrocarbon binder.
- the plunger tube 107 ' may also have a second end 107b' (visible in Figure 9) disposed within said cartridge 100 '.
- This second end 107b ' can in particular be arranged at the bottom of the cartridge 100', at its bottom wall 10G.
- this second end 107b 'of the plunger tube 107' is disposed close to heating tubes 104 ', at its first section 104' a.
- the hydrocarbon binder located near the heating tubes 104 ' will be the first to be heated and to become fluid enough to be aspirated. It will then be possible to start an aspiration of the hydrocarbon binder without waiting for its completeness to be at the right temperature.
- the cartridge 100 ' may also comprise a compressed air inlet (not shown) disposed on its upper wall 102'. The injection of compressed air, for example at 0.2 bar, into the cartridge 100 'allows an increase in the internal pressure which facilitates aspiration.
- the cartridge 100 ' may also include a glove finger 111' extending inwardly of said cartridge 100 ', here from the top wall 102'.
- This glove finger 111 ' can in particular allow the insertion of a temperature probe to control the temperature of the hydrocarbon binder.
- this thimble 111 ' is disposed near the dip tube 107'.
- the tip of the glove finger 111 ' is arranged close to the second end 107' of the plunger tube 107 'so as to enable the temperature of the hydrocarbon binder to be measured as close as possible to the suction .
- the cartridge 100 ' may also comprise a vent 108', preferably disposed on its top wall 102 ', in order to evacuate the gases during the heating of the hydrocarbon binder and to prevent a rise in pressure within the cartridge 100'.
- a vent 108' preferably disposed on its top wall 102 ', in order to evacuate the gases during the heating of the hydrocarbon binder and to prevent a rise in pressure within the cartridge 100'.
- the cartridge 100 ' may also comprise a loading hatch 109' (visible in FIG. 9), illustrated in FIG. 7 by an orifice 10a '', with hydrocarbon binding and arranged for example on its upper wall 102 '.
- This loading hatch 109 can be closed and locked by tightening screw system for example.
- This loading hatch 109 ' can in particular be closed via a padlock or leaded so that only an authorized operator can open it and proceed to the loading of the cartridge 100' by binder hydrocarbon.
- the cartridge 100 ' may also comprise one or more hoops (not shown) capable of being engaged with a lifting device, in particular the loading hoist 300. These lifting hoops are advantageously arranged at the level of the upper wall 102' to allow the cartridge to hang from the top.
- the cartridge 100 ' may for example have a height of 1200mm, a width at its upper wall 102 of 1000mm and a depth at its upper wall 102 of 1000mm.
- the empty weight of the cartridge 100 ' may be of the order of l50kg for a volume of 600 liters.
- FIG. 8 shows a perspective and semi-transparent representation of a heating receptacle 200 'according to the second embodiment.
- the heating receptacle 200 'more particularly comprises a base 201' may comprise supports 205 'so as not to rest directly on the ground.
- the heating receptacle 200 ' also has side walls 203' configured to surround the cartridge 100 'and fixed perpendicularly to the base 201'.
- the heating receptacle 200 ' may in particular be made of metallic material so that the base 201' and the side walls 203 'are welded together.
- the side walls 203 ' may also include lateral reinforcing belts 210' to provide good rigidity and strength of the heating receptacle 200 '.
- the number of side walls 203 ' can vary according to the conformation of the cartridge 100'.
- the heating receptacle 200' includes a heater 211 '(visible in Figure 9). Specifically, one of the side walls 203 'can be pierced at the base 201' to introduce a heater 211 '.
- the heater 211 ' may be a burner for example gas or hydrocarbon.
- the side walls 203 'and the cartridge 100' are separated from each other by a circulation gap to allow the circulation of the heating fumes and hot air from the heater 211 'to heat said 100 'cartridge.
- the heating receptacle 200 ' is open upwards, that is to say that it has no upper partition. This allows a loading of the cartridge 100 ' in the heating receptacle 200 'from above. However, it is quite possible to imagine another loading means, for example by a removable or pivoting side partition 203 '.
- the heating receptacle 200 ' may also comprise within it, at least two separating partitions 220a', 220b '220c' projecting inwardly from its at least one side wall 103 '.
- These partition walls 220a ', 220b', 220c ' are more particularly configured to come into contact with the side wall 103' of the cartridge 100 'so as to define at least two circulation spaces A', B ', C' fumes and air.
- these spaces circulation spaces A', B ', C' are in particular communicating with each other to form a path in which the fumes and hot air can circulate.
- This communication is in particular allowed by the heating tubes 104 'which connect the at least two spaces A', B ', C' circulation spaces. These circulation spaces A ', B', C 'allow optimal, rapid heating and as homogeneous as possible of the hydrocarbon binder within the cartridge 100 '.
- the heating receptacle 200 ' according to this second embodiment more specifically comprises:
- a support partition 220c which is intended to rest the cartridge 100 'and disposed at a height greater than the heating device so as to form a first circulation space A' fumes and hot air under the cartridge 100 ' ,
- this side wall 103 ' is the opposite to the one with the heating device.
- the first ends 104 ⁇ of the heating tubes 104 ' are preferably arranged opposite the side wall 103 'disengaged from the support partition 220c'.
- the support partition 220c ' may also comprise fixing brackets 221' in order to allow solid attachment to the side walls 103 '.
- these fixing brackets 221 ' may also comprise an oblique edge towards the inside of the cartridge 100' and which may serve as a guide for centering the cartridge 100 'during its insertion into the heating receptacle 200'.
- the heating receptacle 200 ' also comprises at the third circulation space C' a chimney 215 'for evacuation of fumes and hot air. So that these fumes and hot air pass efficiently around the cartridge 100 'in the third circulation space C'.
- This chimney 215 is preferably arranged opposite the second ends 104 '2 of the heating tubes 104' as illustrated in FIG. 9.
- this chimney 215 ' is a duct disposed and fixed on a lateral wall 103' of the receptacle. heating 200 '.
- Such a chimney 215 ' makes it possible to recover the fumes in order to filter and treat them in order to limit the ecological impact of the coating station 1.
- the cartridge 100 ' may comprise straps of lateral reinforcements l 10a', 11 Ob '.
- the cartridge 100 ' may comprise an intermediate reinforcement strapping 1 10' disposed at the middle portion of the cartridge 100 ' and configured to abut or engage with the intermediate partition wall 220a 'of the heating receptacle 200' so that the second B 'and third C' circulation spaces are sealed at this level, as shown in FIG.
- cartridge 100 ' may also include an upper reinforcement strapping 10B arranged at the top of the cartridge 100' and configured to abut or engage the upper partition wall 220b 'so that the third space C 'circulation is sealed at this level, as shown in Figure 9.
- Figure 9 is illustrated by arrows the path traveled by the fumes and hot air during the heating of the cartridge 100 '.
- the air is heated by the heater 21 G and hot fumes are emitted by the latter.
- the hot air and the fumes first pass into the first circulation space A ', under the cartridge 100'.
- the hot air and the fumes are prevented from going up on the sides of the cartridge 100 'because of the support partition 220c'.
- the hot air and the fumes then join the side wall 103 'disengaged from the support partition 220c' and pass into the second circulation space B '.
- the hot air and the fumes circulate in the gap between the cartridge 100 'and the heating receptacle 200' and join the first end 104 ⁇ of the heating tubes 104 '.
- the hot air and the fumes pass through the heating tubes 104 'to pass into the third circulation space C'.
- the fumes and the hot air pass through the third circulation space C 'passing through the gap between the cartridge 100' and the heating receptacle 200 'and join the chimney 215' to be evacuated.
- the present invention allows, thanks to the melter 10 comprising a cartridge 100 or 100 'and a heating receptacle 200 or 200', a simpler and secure use of the hydrocarbon binder.
- the conformation of the cartridge 100, 100 ' also allows a better logistics as well as an optimal, fast and homogeneous melting of the hydrocarbon binder within the heating receptacle 200, 200'.
- the fact of using several heating receptacles 200, 200 'and cartridges 100, 100' allows a continuous supply of hydrocarbon binder from the coating plant 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coating Apparatus (AREA)
- Road Paving Machines (AREA)
- Pipe Accessories (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1761309A FR3074196B1 (fr) | 2017-11-28 | 2017-11-28 | Cartouche de fonte d'un liant hydrocarbone, receptacle chauffant d'une telle cartouche et centrale d'enrobage associee |
| PCT/EP2018/082685 WO2019105924A1 (fr) | 2017-11-28 | 2018-11-27 | Ensemble cartouche de fonte d'un liant hydrocarboné et receptacle chauffant d'une telle cartouche; centrale d'enrobage associée |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3717700A1 true EP3717700A1 (fr) | 2020-10-07 |
| EP3717700B1 EP3717700B1 (fr) | 2022-10-26 |
Family
ID=61224058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18811778.2A Active EP3717700B1 (fr) | 2017-11-28 | 2018-11-27 | Ensemble cartouche de fonte d'un liant hydrocarboné et receptacle chauffant d'une telle cartouche; cartouche de fonte d'un liant hydrocarboné associée; receptacle chauffant associé; centrale d'enrobage associée |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3717700B1 (fr) |
| FR (1) | FR3074196B1 (fr) |
| WO (1) | WO2019105924A1 (fr) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190905966A (en) * | 1909-03-12 | 1909-12-16 | George Southern | Apparatus for use in Road or Foot-path Making or Repair Jobs and for General Municipal Purposes. |
| GB169775A (en) * | 1920-06-25 | 1921-09-26 | Kenneth Donald Mackenzie | Improvements in or connected with boilers or heaters for tar, pitch, bitumen, asphalt and the like |
| FR557316A (fr) * | 1921-10-28 | 1923-08-07 | Perfectionnements dans les appareils de chauffage du bitume ou autre matière, en vue d'en obtenir la fusion | |
| GB565931A (en) * | 1943-05-04 | 1944-12-05 | William Duchatel Woellwarth | Improvements in or relating to portable boilers |
| DE1106902B (de) * | 1959-08-06 | 1961-05-18 | Theodor Keller | Vorrichtung zum Schmelzen, Kochen bzw. Warmhalten von Bitumen, Teer, Asphalt oder aehnlichen Stoffen |
| DE1216186B (de) * | 1965-03-08 | 1966-05-05 | Mannesmann Ag | Tankpalette mit Heizvorrichtung |
| US4192288A (en) * | 1978-07-07 | 1980-03-11 | Poweray Infrared Corp. | Material heating apparatus |
| US5333600A (en) * | 1993-11-17 | 1994-08-02 | Martin Fitzpatrick | Portable tar melting kettle assembly |
| CN205441512U (zh) * | 2015-12-29 | 2016-08-10 | 郑州市诚发机械制造有限公司 | 一种沥青储存罐及其罐体 |
-
2017
- 2017-11-28 FR FR1761309A patent/FR3074196B1/fr not_active Expired - Fee Related
-
2018
- 2018-11-27 EP EP18811778.2A patent/EP3717700B1/fr active Active
- 2018-11-27 WO PCT/EP2018/082685 patent/WO2019105924A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP3717700B1 (fr) | 2022-10-26 |
| FR3074196A1 (fr) | 2019-05-31 |
| FR3074196B1 (fr) | 2021-04-16 |
| WO2019105924A1 (fr) | 2019-06-06 |
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