EP3243957B2 - Installation et procédé d'enrobage de granulats - Google Patents

Installation et procédé d'enrobage de granulats Download PDF

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Publication number
EP3243957B2
EP3243957B2 EP17170410.9A EP17170410A EP3243957B2 EP 3243957 B2 EP3243957 B2 EP 3243957B2 EP 17170410 A EP17170410 A EP 17170410A EP 3243957 B2 EP3243957 B2 EP 3243957B2
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EP
European Patent Office
Prior art keywords
drum
aggregates
aggregate
asphalt
gases
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.)
Active
Application number
EP17170410.9A
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German (de)
English (en)
French (fr)
Other versions
EP3243957A1 (fr
EP3243957B1 (fr
Inventor
Thierry De Sars
Hervé Riche
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Ermont
Original Assignee
Ermont
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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
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1027—Mixing in a rotary receptacle
    • E01C19/1036—Mixing in a rotary receptacle for in-plant recycling or for reprocessing, e.g. adapted to receive and reprocess an addition of salvaged material, adapted to reheat and remix cooled-down batches
    • 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
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
    • 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
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1068—Supplying or proportioning the ingredients
    • E01C19/1072—Supplying or proportioning the ingredients the solid ingredients
    • 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
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C2019/1081—Details not otherwise provided for
    • E01C2019/109—Mixing containers having a counter flow drum, i.e. the flow of material is opposite to the gas flow
    • 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
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C2019/1081—Details not otherwise provided for
    • E01C2019/1095—Mixing containers having a parallel flow drum, i.e. the flow of material is parallel to the gas flow

Definitions

  • the present invention relates to the field of aggregate coating installations for the production of mixes, in particular of mixes for road paving, with recycling of aggregates of mixes.
  • the fresh aggregate is fed into the dryer drum at the raised end thereof, and the hot aggregate is collected at the lowered end of the dryer drum.
  • the aggregates Due to the rotation of the dryer drum, the aggregates are lifted and fall, forming a curtain of aggregates inside the dryer drum, the flow of hot gas passing through the curtain of aggregates.
  • the gas flow circulates in the dryer drum in the direction of advance of the aggregates, i.e. from the raised end to the lowered end.
  • the gas flow circulates in the dryer drum in the opposite direction to the direction of advance of the aggregates, i.e. from the lowered end to the raised end.
  • the mixing of dry and hot aggregates with the binder is carried out in a mixing section of the dryer drum, in which case the dryer drum is said to be a “mixer-dryer” or in an external mixer separate and separate from the dryer drum.
  • a co-current or counter-current mixer-dryer drum comprising successively from its raised end to its lowered end, a drying section for drying the aggregates, a mixing section for mixing the aggregates. aggregates and asphalt aggregates, the asphalt aggregates being introduced into the mixing section, and a kneading section for kneading the mixture with a filler binder, the filler binder being introduced into the mixing section.
  • the hot gases circulating in the dryer drum are generated using a burner arranged inside the dryer drum, positioned near the raised end or the lowered end of the dryer drum, depending on whether the latter is co-current or counter-current.
  • the aggregates are superheated in the dryer drum to provide the amount of heat necessary for heating the asphalt aggregate in the mixing drum.
  • a dryer drum for drying the aggregates and a dryer drum for drying the asphalt aggregates the aggregates and asphalt aggregates and the filler binder then being introduced into a mixer separate from the drums. dryers.
  • the flow of hot gas circulating in the dryer drum for drying the aggregates is generated by a burner arranged in this dryer drum or by a hot gas generator comprising an enclosure and a burner for generating the hot gas, the enclosure being fluidly connected to the dryer drum to convey the hot gases to the dryer drum.
  • the “recycling rate” is the ratio of the quantity of mix aggregates to the sum of the quantity of mix aggregate and the quantity of fresh aggregates entering into the composition of the mix.
  • GB2131314A discloses an installation for the production of asphalt mixes for road paving with asphalt recycling, comprising a first drum fitted with a burner and supplied with fresh aggregates and a second drum supplied with hot aggregates from the first drum, recycled asphalt and binder , hot gases passing from the first drum to the second drum.
  • EP0437990A discloses an installation for the production of asphalt mixes for road surfacing with asphalt recycling, comprising a first drum fitted with a burner and supplied with fresh recycled materials, and a second drum supplied with fresh aggregates, with hot recycled materials coming from the first drum and binding, hot gases passing from the first drum to the second drum.
  • US5201839A discloses an installation for the production of asphalt for road paving comprising a first drum receiving aggregates at one end of the first drum, a second drum receiving asphalt aggregates at one end of the second drum, the aggregates leaving the first drum being introduced into an intermediate section of the second drum, hot gases being generated in the first drum, the hot gases leaving the first drum supplying the second drum via a heat exchanger.
  • One of the aims of the invention is to provide an aggregate coating installation making it possible to increase the recycling rate of the asphalt aggregates in the production of mixes, in particular of mixes for road paving.
  • the invention provides an aggregate coating installation according to claim 1.
  • the invention also relates to a process for coating aggregates according to claim 9.
  • the aggregate coating plant 2 of the Figure 1 is configured for the production of asphalt with recycling of asphalt aggregate, from fresh aggregates and fresh asphalt aggregates recycled.
  • freshness means that the aggregates or the coated aggregates are wet and cold and have not yet been dried - completely or partially - in the aggregate coating plant 2.
  • the aggregate coating installation 2 comprises a first drum 4 for drying by circulating a gas flow in the first drum 4, and a second drying drum 6 by circulating a gas flow in the second drum 6. , the first drum 4 being separate from the second drum 6.
  • Each of the first drum 4 and the second drum 6 is rotatable.
  • Each of the first drum 4 and of the second drum 6 extends along a respective central axis A1, A2, and each of the first drum 4 and of the second drum 6 is rotatable about its central axis A1, A2.
  • each of the first drum 4 and of the second drum 6 is inclined relative to the horizontal plane.
  • Each of the first drum 4 therefore has a raised end 4A, 6A and a lowered end 4B, 6B.
  • the raised end 4A, 6A is located at a higher level than that of the lowered end 4B, 6B.
  • the aggregate coating installation 2 comprises a first feed device 7 configured to supply the raised end 4A of the first drum 4 with fresh aggregates G.
  • the aggregate coating installation 2 comprises a second feed device 9 configured to supply the raised end 6A of the second drum 6 with fresh coated aggregates AE.
  • the aggregates and / or the asphalt aggregates present in the drum are raised due to the rotation of the drum and fall back forming a curtain of aggregates and / or of asphalt aggregates.
  • the gases circulating in the drum pass through the curtain of aggregates and / or asphalt aggregates, and dry the aggregates and / or asphalt aggregates,
  • the angle of inclination of the central axis A1, A2 of each of the first drum 4 and of the second drum 6 with respect to the horizontal plane is typically between 2 ° and 6 °.
  • the first drum 4 is a co-current dryer drum configured for gas circulation in the direction of advance of the aggregates. In operation, the gases flow from the raised end 4A to the lowered end 4B of the first drum 4.
  • the second drum 6 is a co-current dryer drum, the gas circulating in the second drum 6 in the direction of advance of the asphalt aggregates. In operation, the gases flow from the raised end 6A to the lowered end 6B of the second drum 6.
  • the aggregate coating installation 2 comprises a burner 8 to form a flame F and heat the gases circulating in the first drum 4.
  • the burner 8 is arranged inside the first drum 4, near the raised end 4A of the first drum 4, to heat the gases entering the first drum 4 through its raised end 4A and circulating towards its lowered end 4B .
  • the second drum 6 is fluidly connected in series with the first drum 4 so as to supply the second drum 6 with gases which have already circulated in the first drum 4.
  • the second drum 6 is here fluidly connected to the first drum 4 by a supply connection 10 so as to supply the second drum 6 with gases which have circulated in the first drum 4.
  • the supply connection 10 extends here between the lowered end 4B of the first drum 4 and the raised end 6A of the second drum 6, to supply the second drum 4 with the gases leaving the first drum 4.
  • the aggregate coating plant 2 is configured to supply the second drum 6 with at least a fraction of the gases leaving the first drum 4.
  • the aggregate coating plant 2 can be configured to supply the second drum 6 with a fraction of the gases leaving the first drum 4 or with all the gases leaving the first drum 4.
  • the second drum 6 is supplied with hot gas only by gases which have already circulated in the first drum 4.
  • the second drum 6 is in particular without a burner 8.
  • the gases circulate in the first drum 4 while being initially heated up to a first temperature T1, and are introduced into the second drum 6 at a second temperature T2 which is strictly lower than the first temperature T1.
  • the gases are initially heated at the first temperature T1 by the burner 8, then gradually cool while circulating in the first drum 4, and are therefore introduced into the second drum 6 at a second temperature T2 strictly lower than the first temperature T1.
  • the aggregate coating plant 2 is also configured for supplying the second drum 6 with the heated aggregates leaving the first drum 4.
  • the heated aggregates in the first drum 4 are introduced into the second drum 6, at the end. statement 6A thereof, with asphalt aggregates.
  • the aggregate coating installation 2 here comprises a transfer device 11 for transferring the aggregates from the lowered end of the first drum to the raised end of the second drum 6.
  • the raised end 6A of the second drum 6 is fed with the coated aggregates and the aggregates leaving the first drum 4, and the second drum 6 mixes the coated aggregates and the heated aggregates.
  • the heat of the heated aggregates in the first drum 4 partly allows the asphalt aggregates to be dried in the second drum.
  • the asphalt aggregates are dried in the second drum 6 by the gases leaving the first drum 4 and by the previously heated aggregates in the first drum 4.
  • the aggregate coating installation 2 comprises a mixer 12 for mixing the mixture M of aggregates and coated aggregates leaving the second drum 6, at the lowered end 6B thereof.
  • the asphalt aggregates mixed with the aggregates already contain binder, known as “recycling binder”, coming from the asphalt aggregates. It may also prove necessary to provide additional binder, called a “filler binder”.
  • the aggregate coating installation 2 comprises a filler binder feed device 14 for introducing filler binder into the mixer 12.
  • the aggregate coating installation 2 comprises a recirculation circuit 16 for recovering at least a fraction of the gases leaving the second drum 6 and reintroducing these gases into the first drum 4.
  • the recirculation circuit 16 is here configured to recover gases at the lowered end 6B of the second drum 4 and to reinject them at the raised end 4A of the first drum 4.
  • Such recirculation of the gases makes it possible to simply adjust the temperature of the gases in the first drum 4, for example by varying the fraction of the recycled gases coming from the second drum 6.
  • the aggregate coating installation 2 comprises a filtering device 18 fluidly connected to the second drum 6 in order to filter at least a fraction of the gases leaving the second drum 6.
  • the filtering device 18 is for example a bag filter.
  • the filtering device 18 is here fluidly connected to the lowered end 6B of the second drum 4 by a filter connection 20.
  • the aggregate coating installation 2 comprises an emissions recovery circuit 22 to recover the emissions emitted in the mixer 12 and inject them into the gases upstream of the burner 8, to incinerate these emissions in the flame F of the burner 8
  • the emissions are emitted by the filler binder or the recycling binder during mixing.
  • the emissions recovery circuit 22 opens here into the recirculation circuit 16, so as to reinject the emissions 22 with the gases reinjected into the first drum 4.
  • the emissions recovery circuit 22 is separate from the recovery circuit. recirculation 16 and opens into the first drum 4.
  • the first drum 4 and the second drum 6 separate are able to rotate about their respective central axes A1, A2 at different rotational speeds from one another.
  • the speed of rotation of the first drum 4 is adjustable relative to the speed of rotation of the second drum 6.
  • the speed of rotation of the first drum 4 can take several different values for the same speed of rotation of the second drum 6.
  • the aggregate coating installation 2 comprises a common drive device for driving the first drum 4 and the second drum 6 in rotation, the first drum 4 and the second drum. 6 being coupled to the common drive device respectively by a first mechanical transmission and a second mechanical transmission, at least the first mechanical transmission having several selectable transmission ratios.
  • the speed of rotation of the first drum 4 is adjustable independently of the speed of rotation of the second drum 6.
  • the aggregate coating installation 2 comprises a first drive device 24 for driving the first drum in rotation, and a second drive device 26 for driving the second drum in rotation, the second device for driving the second drum in rotation.
  • 'drive 24 being separate from the first motor drive device 26.
  • the first drive device 24 and the second drive device 26 are independently adjustable from each other for adjusting the rotational speed of the first drum 4 regardless of the speed of rotation of the second drum 6.
  • Each drive device is configured to generate a rotational drive torque.
  • Each drive device comprises for example a motor or a series of motors.
  • the adjustment of the speed of rotation of the first drum 4 makes it possible to adjust the temperature of the heating gases leaving the first drum 4.
  • the variation of the speed of the drum makes it possible to vary the density of the curtain of materials and the speed. advancement materials.
  • the aggregates are dried and heated by the hot gases in the first drum 4.
  • the hot gases generated by the burner 8 are heated to a high temperature (first temperature T1) and leave the first drum 4 at a moderate temperature. (second temperature T2) due to a first heat exchange with the aggregates.
  • the asphalt aggregates are dried and heated in the second drum 6 supplied with the gases at moderate temperature (second temperature T2) leaving the first drum 4, while being mixed with the aggregates heated beforehand in the first drum 4.
  • the binder d The input is mixed with the aggregates and the asphalt aggregates in the mixer 12.
  • This aggregate coating installation 2 allows a very high recycling rate, in particular a recycling rate equal to or greater than 50%.
  • the asphalt aggregates are not subjected to the radiation of the flame F of the burner 8 and are not in contact with very high temperature gases generated by the burner 8.
  • the use of the gases leaving the first drum 4 for drying the coated aggregates in the second drum 6 limits the power required to be supplied for heating the coated aggregates.
  • the mixing, in the second drum 6, of the asphalt aggregates with the hot aggregates leaving the first drum 4 makes it possible to provide part of the heat necessary for drying the asphalt aggregates via the aggregates and further limits the power required to heat the asphalt aggregates.
  • the adjustment of the temperature of the gases leaving the first drum 4 and feeding the second drum 6 for drying the asphalt aggregates makes it possible to supply the second drum 6 with gases having a suitable temperature for recycling aggregates of asphalt. asphalt with a high recycling rate.
  • the aggregate coating installation 2 comprises a single burner, which limits its manufacturing, operating and maintenance costs.
  • the separate mixer 12 can be sanitized and the emissions can be incinerated in the flame F of the burner 8.
  • the embodiment of the Figure 2 differs from that of the Figure 1 in that the second drum 6 is against the current. It is configured so that the gases flow therein from the lowered end 6B to the raised end 6A.
  • the lowered end 6B of the second drum 6 is fluidly connected to the lowered end 4B of the first drum 4 for supplying the lowered end 6B of the second drum 6 with the gases exiting at the lowered end 6B of the first drum 4 .
  • the embodiment of the Figure 3 differs from that of the Figure 1 in that the second drum 6 is a dryer and mixer drum or “mixer-dryer”.
  • the aggregate coating installation 2 is here devoid of a separate mixer.
  • the second drum 6 comprises successively, from its raised end 6A towards its lowered end 6B, a drying section 30 and a kneading section 32.
  • the filler binder feed device 14 is arranged to introduce the filler binder inside the second drum 6, in the mixing section 32.
  • the first drum 4 is cocurrent.
  • the first drum 4 is countercurrent, the gases circulating in the first drum 4 in the opposite direction to the direction of advance of the aggregates.
  • the burner 8 is arranged inside the first drum 4 near the lowered end 4B of the first drum 4.
  • the end of the first drum 4 through which the gases exit is fluidly connected to the end of the second drum 6 through which the gases are introduced into the second drum 6, so as to supply the second drum with at least one fraction of the gases leaving the first drum 4.
  • the second drum 6 is supplied with gas only with the gases leaving the first drum 4.
  • the burner 8 is arranged inside the first drum.
  • the aggregate coating installation 2 comprises a separate combustion chamber and separate from the first drum, the burner being arranged inside the combustion chamber, the combustion chamber being fluidly connected to the first drum to make circulate the hot gases in the first drum.
  • the combustion chamber is fluidly connected to the raised end of the first drum or to the lowered end of the first drum depending on whether the first drum is cocurrent or countercurrent.
  • the gas recirculation circuit 16 is configured to reinject the gases taken at the outlet of the second drum into the combustion chamber and / or into the first drum, at the end of the first drum 4 by which the hot gases are introduced into the first drum 4.
  • the emissions recovery circuit is configured to reinject the emissions into the combustion chamber, for their incineration in the flame F of the burner 8.
  • the emissions recovery circuit is configured for the reinjection of the emissions into the gases upstream of the burner 8 for incineration. emissions in the flame F of the burner 8.
  • hot aggregates leaving the first drum 4 are introduced into the second drum 6 directly into an intermediate section of the second drum 6, located at a distance from the raised end 6A of the second drum 6.
  • the aggregate coating installation 2 comprises for example an introduction ring 34 disposed on the second drum 6 at a distance from the raised end 6A of the second drum 6, and connected to the lowered end 4B of the first drum 4 to receive the hot aggregates coming out of the first drum 4.
  • fresh aggregates feed the raised end 6A of the second drum 6.
  • the aggregate coating installation 2 comprises an auxiliary feed device 36 for introducing fresh aggregates into the raised end 6A of the second drum 6.
  • fresh aggregates are introduced into the second drum 6 directly into an intermediate section of the second drum 6, located at a distance from the raised end 6A of the second drum 6.
  • the aggregate coating installation 2 optionally comprises a fresh aggregate introduction device 38 for introducing fresh aggregates into the second drum 6 directly into an intermediate section of the second drum 6, located at a distance from the raised end 6A of the second drum 6, for example by means of an introduction ring 34.
  • the fresh aggregates are introduced into the first drum 4 and / or directly into the second drum 6.
  • At least a fraction of the fresh aggregates is introduced into the first drum 4 at its raised end 4A.
  • This fraction is preferably a majority fraction, representing at least 50% of the amount of fresh aggregates, more preferably at least 80% of the amount of fresh aggregates.
  • all of the fresh aggregates is introduced into the first drum 4 at its raised end 4A.
  • the hot aggregates feeding the external mixer 12 come from the second drum 6.
  • hot aggregates leaving the first drum 4 are introduced directly into the mixer 12 without passing through the second drum 6.
  • the aggregate coating installation 2 comprises for example an auxiliary transfer device 40 for transferring aggregates directly from the lowered end 4B of the first drum 4 to the mixer 12 without passing through the second drum 6.
  • only a fraction of the fresh asphalt aggregates is introduced into the second drum 6 via its raised end 6A.
  • the remaining fraction of the fresh asphalt aggregates is for example introduced into the first drum 4, by its raised end 4A.
  • a fraction of the fresh asphalt aggregates is introduced into the first drum 4 and another fraction of the fresh asphalt aggregates is introduced into the second drum 6.
  • At least a fraction of the fresh asphalt aggregates is introduced into the second drum 6 for its drying by circulation of gas which has already circulated in the first drum 6.
  • the fraction of fresh coated aggregates introduced into the second drum 6 is a majority fraction of fresh coated aggregates, representing at least 50% of the amount of fresh coated aggregates, preferably at least 80% the quantity of fresh coated aggregates, and in a particular embodiment, all of the fresh coated aggregates.
  • the mixer 12 is a continuous mixer which receives and continuously processes the aggregates and the asphalt aggregates.
  • the mixer 12 is a batch mixer which treats the aggregates and the asphalt aggregates in successive batches.
  • the aggregate coating installation 2 comprises a storage device arranged between the second drum 6 and the mixer 12 for temporarily storing the aggregates and the hot mix aggregates, before supplying them to the mixer 12.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
EP17170410.9A 2016-05-10 2017-05-10 Installation et procédé d'enrobage de granulats Active EP3243957B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1654161A FR3051203B1 (fr) 2016-05-10 2016-05-10 Installation et procede d'enrobage de granulats

Publications (3)

Publication Number Publication Date
EP3243957A1 EP3243957A1 (fr) 2017-11-15
EP3243957B1 EP3243957B1 (fr) 2018-12-12
EP3243957B2 true EP3243957B2 (fr) 2021-12-15

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EP (1) EP3243957B2 (es)
ES (1) ES2715484T5 (es)
FR (1) FR3051203B1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3079020B1 (fr) * 2018-03-19 2020-08-07 Argumat Bruleur de fumees bleues pour la depollution d'une centrale d'enrobage, centrale d'enrobage et procede de depollution associes
CN109706821A (zh) * 2019-03-04 2019-05-03 江苏人杰筑路机械科技有限公司 一种环保节能型全再生沥青混合料搅拌设备
FR3126432B1 (fr) * 2021-08-26 2023-08-04 Argumat Installation de production d’enrobes et procede de fabrication d’enrobes dans une telle installation de production d’enrobes

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US4047884A (en) † 1976-04-05 1977-09-13 Allis-Chalmers Corporation Means and method for processing cement raw materials containing fuel of high volatile content
US4142803A (en) † 1976-10-05 1979-03-06 Mendenhall Robert Lamar Recycled asphalt-aggregate process and apparatus
DE3530248A1 (de) † 1985-08-23 1987-03-26 Bayerische Asphalt Mischwerke Verfahren und vorrichtung zur aufbereitung von bituminoesem mischgut
EP0216316A2 (de) † 1985-09-21 1987-04-01 WIBAU Maschinen GmbH & Co. KG Verfahren zur emissionsarmen Aufbereitung eines bituminösen Mischgutes mit hohem Anteil an Granulat als Recycling-Mischgut
US4705404A (en) † 1984-11-13 1987-11-10 Deutsche Asphalt Gmbh Method and apparatus for processing mixed asphalt material utilizing broken-up used asphalt
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DE3624735A1 (de) † 1986-07-22 1988-02-04 Wibau Ag Verfahren zur einleitung eines brennerabgases aus einer ersten trockentrommel als tertiaerluft in den brenner einer zweiten trommel, sowie eine vorrichtung zur ausuebung des verfahrens
US5201839A (en) † 1989-05-15 1993-04-13 Cmi Corporation Countercurrent drum mixer with second heat source
US5178456A (en) † 1990-01-18 1993-01-12 Ermont C. M. Device for the preparation of bituminous coated products comprising a drum with parallel streams and a countercurrent drum and corresponding process
US5174650A (en) † 1990-07-23 1992-12-29 Cedarapids, Inc. Dual drum recycle asphalt drying and mixing method and apparatus
DE4140964A1 (de) † 1991-12-12 1993-06-17 Wibau Gmbh Verfahren zur herstellung von asphaltmischgut
US5397177A (en) † 1992-02-03 1995-03-14 Swisher, Jr.; George W. Asphalt production plant having a two-burner dryer with increased exhaust capacity
EP0632242A1 (de) † 1993-07-02 1995-01-04 U. Ammann Maschinenfabrik AG Trocknung und/oder Erhitzung von rieselfähigem Material
US5664881A (en) † 1993-11-16 1997-09-09 Maxam Equipment, Inc. Counter-flow asphalt plant with multi-stage combustion zone overlapping the mixing zone
US5538340A (en) † 1993-12-14 1996-07-23 Gencor Industries, Inc. Counterflow drum mixer for making asphaltic concrete and methods of operation
US5596935A (en) † 1995-11-03 1997-01-28 Astec Industries, Inc. System for and method of soil remediation and hot mix asphalt production
US8591092B2 (en) † 2007-06-15 2013-11-26 Cmi Terex Corporation Low emission energy efficient 100 percent RAP capable asphalt plant

Also Published As

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ES2715484T3 (es) 2019-06-04
FR3051203B1 (fr) 2019-09-06
EP3243957A1 (fr) 2017-11-15
ES2715484T5 (es) 2022-03-28
EP3243957B1 (fr) 2018-12-12
FR3051203A1 (fr) 2017-11-17

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