EP3173526A1 - Procédé et installation pour la fabrication de mélanges bitumineux trempés avec un matériau récupéré de mélanges bitumineux - Google Patents

Procédé et installation pour la fabrication de mélanges bitumineux trempés avec un matériau récupéré de mélanges bitumineux Download PDF

Info

Publication number
EP3173526A1
EP3173526A1 EP15824453.3A EP15824453A EP3173526A1 EP 3173526 A1 EP3173526 A1 EP 3173526A1 EP 15824453 A EP15824453 A EP 15824453A EP 3173526 A1 EP3173526 A1 EP 3173526A1
Authority
EP
European Patent Office
Prior art keywords
rap
production
bituminous
fraction
tempered
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Withdrawn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
EP15824453.3A
Other languages
German (de)
English (en)
Other versions
EP3173526A4 (fr
Inventor
Antonio RAMÍREZ RODRÍGUEZ
José Ramón OTERO ABAD
Jacinto Luis GARCÍA SANTIAGO
Rafael Pablo GUILLÉN CARMONA
Patricia DÍAZ MARTÍN
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.)
Sacyr Construccion SA
Original Assignee
Sacyr Construccion SA
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 Sacyr Construccion SA filed Critical Sacyr Construccion SA
Publication of EP3173526A1 publication Critical patent/EP3173526A1/fr
Publication of EP3173526A4 publication Critical patent/EP3173526A4/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • E01C19/1004—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
    • E01C19/1009—Plant wherein type or construction of the mixer are irrelevant
    • 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
    • E01C19/1063—Controlling the operations
    • 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
    • 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 a procedure for the production of tempered bituminous mixtures to form the upper layers of the roadbed of highways and other road infrastructure utilising material recovered from deteriorated and/or aged layers of bituminous mixtures, rendering possible the utilisation at a rate of up to 100 % of recovered material.
  • the invention furthermore covers a production plant for the execution of said procedure.
  • bituminous mixture may be defined as a combination of bitumen (also called asphalt) and stony mineral aggregates in preset proportions determining the physical properties thereof and, finally, the performance thereof for a given use.
  • RAP reclaimed asphalt pavement
  • MRMB MRMB
  • RAP is constituted by materials of high technical and economic value, for which reason the reutilisation or recycling thereof is desirable.
  • Hot procedures for the production of replacement bituminous mixtures are known which may utilise a certain percentage of RAP (up to approximately 50 %), however not 100 % by virtue of the fact that the high temperatures attained during the processes of hot production (approximately between 160 °C and 180 °C) deteriorate ('burn') the bitumen present in the RAP, damaging the properties thereof as a consequence.
  • the present invention is orientated towards the resolution of this problem.
  • An object of the present invention is to provide procedures for the production of bituminous mixtures having a high level of mechanical and functional properties and permitting a percentage of RAP recycling of up to 100 %.
  • Another object of the present invention is to provide procedures for the production of bituminous mixtures permitting reducing the cost thereof with respect to the known procedures.
  • a further object of the present invention is to provide production plants for the execution of the aforementioned procedures.
  • the granulometry of the first fraction is comprised between 0 mm and 7 mm (and more advantageously between 0 mm and 5 mm) and the granulometry of the second fraction is comprised between 4 mm and 30 mm (and more advantageously between 5 mm and 25 mm).
  • the procedure admits the incorporation of virgin aggregate into the mixture in order to improve the properties thereof and also, should it be so desired, to make tempered mixtures having a rate of recovery of RAP of less than 100 %.
  • the quantity of bituminous emulsion is comprised between 2.5 % and 3 % by weight of the total weight of the bituminous mixture, contributing a much lower percentage of bitumen than that required when recycled materials are not utilised.
  • bituminous mixtures from reclaimed asphalt pavement (RAP) and from a bituminous emulsion comprising:
  • the drum dryer comprises a system of controlled recirculation of a portion of the effluent fumes and is provided with a bag filter for the treatment of the unrecycled fumes.
  • the blender comprises a system of measurement of the energy consumption thereof permitting estimation of the humidity of the final bituminous mixture.
  • the plant may also comprise a device for raising the mixed product to a holding hopper, in this manner adapting the continuous flow of the installation to the discontinuous flow of the lorries.
  • the raising device may be, for example, a scraper conveyor.
  • a silo of greater size, lagged and heated at the base thereof, may be used.
  • the plant may also comprise a third and a fourth hopper for virgin aggregate connected to a second transport device in order that this latter may also transport preset quantities of virgin aggregate to the drum dryer.
  • the granulometry of the virgin aggregate will be that required to obtain the final granulometry of the desired mixture, having the percentages determined in the working formula obtained in the laboratory.
  • the third and fourth hoppers may also be utilised in an alternative manner for a third and a fourth fraction of RAP, should it be desired that more than two fractions of recycled material be employed in the production procedure.
  • This treatment may be realised by means of a first operation of shredding the RAP comprised between D2 and D3 in, for example, a shredder, and a second operation of screening the shredded material and the remainder of the RAP (smaller than D2) to obtain said two RAP fractions f1 and f2 .
  • the shredder separates the RAP with the minimum fragmentation of the stony matrix, that is to say that what it does in essence is 'unstick' the aggregate bound by the bitumen.
  • the treatment of this step may also include the separation of metal materials present in the RAP by means of magnetic separators.
  • the first fraction f1 has a granulometry comprised between 0 and 7 mm (and more preferably between 0 mm and 5 mm) and the second fraction f2 has a granulometry comprised between 4 mm and 30 mm (and more preferably between 5 mm and 25 mm).
  • the execution of this step is carried out by firstly feeding hoppers T1, T2, destined for RAP fractions f1 , f2 and provided with dosing devices D1, D2, from the stockpiles A1 and A2; secondly, supplying preset quantities of said fractions f1 , f2 to transport devices, for example, conveyor belts B1, B2, carrying them to two differentiated inlets of a drum dryer TS wherein said fractions are mixed and heated differentially, permitting in this manner a rate of recycling of RAP of 100 %, by virtue of the reasons stated hereinbefore.
  • the RAP is heated directly, however being executed in such a manner as not to affect the bitumen present therein.
  • the heating of the two fractions f1 , f2 is carried out by contact with a hot gas flow ac (avoiding contact with the flame as occurs in the counter-current drum dryers utilised in bituminous plants such as that described in patent ES 2 368 980 A1 ) and the heating time differs for the two fractions f1 and f2 , they being made to enter the drum dryer TS at different points in order to accommodate the differing granulometry thereof and, furthermore, the different quantities of binder (bitumen) in order not to affect the properties of the latter.
  • the fraction f2 having the coarser RAP, is introduced through the inlet most proximate to the source of hot gases ac (at the commencement of the drum dryer TS), more time being required to transmit the quantity of heat required to the coarser fraction.
  • the fraction f1 having the finest aggregate, is introduced through the inlet most distant from the source of hot gases ac, situated at an appropriate point of the drum dryer TS such that the fraction f1 attains the temperature required at the outlet from the drum dryer TS, comprised between 90 and 120 °C.
  • this step may include an additional fraction of virgin aggregate to improve the characteristics of the bituminous mixture.
  • this material would be supplied to the drum dryer TS by means of the feeder belt B2 utilised for RAP fraction f2 .
  • the granulometry of the virgin aggregate will be that required to obtain the desired final granulometry of the mixture having the percentages determined in the working formula obtained in the laboratory.
  • this step may include a third and a fourth fraction f3 and f4 of RAP, should it be desired that more than two fractions of recycled material be employed in the production procedure.
  • the granulometries of the third and a fourth fraction f3 and f4 will be comprised between D1 mm and D2 mm.
  • this material would also be fed to the drum dryer TS by means of the feeder conveyor B2 utilised for RAP fraction f2 .
  • the mixture f1 + f2 obtained in the foregoing step is discharged into a bitumen mixer or blender AM, wherein it is mixed together with a preset quantity of bituminous emulsion eb received at 60 to 80 °C from a tank T3 provided with a dosing device D3.
  • bituminous emulsion eb received at 60 to 80 °C from a tank T3 provided with a dosing device D3.
  • the quantity of bituminous emulsion eb is comprised between 2.5 and 3 % by weight.
  • the bituminous mixture mb obtained subsequent to the fourth step may be supplied directly to a means of transport to carry it to the destination thereof or be stored by means of a raising device in a holding hopper or silo, which may be lagged and heated.
  • a unit for the pretreatment of the material proceeding from the milling or demolition of a bituminous pavement (proceeding from aged roadbeds) the material exceeding D3 mm is rejected.
  • the fraction comprised approximately between D2 mm and D3 mm is fed to a shredder, whilst the fraction smaller than D2 mm is taken directly to the output screen together with the product from the shredder.
  • This shredder separates the RAP with the minimum fragmentation of the stony matrix, that is a say what it does in essence is 'unstick' the fractions bound by the binder.
  • This pretreatment unit may incorporate a magnetic separator preventing the input of pickaxes or metal remains present in the material to be fed.
  • the product of this stage obtained at the output screen is two or more RAP fractions at ambient temperature.
  • the values of D3 and D2 will depend on the size of the installation and on the final material to be obtained, habitual values being 60 mm for D3 and 30 mm for D2.
  • the hoppers 1 and 2 are destined for the storage of, respectively, the fine fraction and the coarse fraction of the RAP produced in a unit for the pretreatment of the RAP.
  • the hoppers 3 and 4 are destined to store virgin aggregate of differing granulometry which may also be utilised as starting material for the production of bituminous mixtures (either to improve the mixture with 100 % RAP or for mixtures having rates of recycled material of less than 100 %).
  • the third and fourth hoppers may be also utilised for a third and a fourth fraction of the RAP, should it be desired that more than two fractions of recycled material be employed in the production procedure.
  • this is a parallel flow (co-current) drum, driven by electric motors having a fuel oil burner (although any other fuel may be employed such as, for example, gas).
  • the combustion chamber 6 thereof is disposed in an entry-end position and it has two inlets or rings in different positions. That most proximate to the combustion chamber 6 is destined for the coarsest RAP fraction(s) and, as appropriate, the virgin aggregate, and the most distant for the finest fraction of the RAP. This latter must be located at a point of the drum dryer 5 as distant as possible from the burner (in order to damage the bitumen as little as possible), however at a point such as to permit that said fraction attains the required temperature at the outlet from the drum dryer, comprised between 90 °C and 120 °C.
  • the combustion gases may be mixed at the commencement of the cycle thereof: they may be combined with a portion of the recirculated gases and another of fresh air by means of a tangential fan creating the turbulence required for homogeneous heating (the quantity of fresh air may be adjusted).
  • the burner of the drum dryer 5 is fed by fuel oil (although any other fuel may be employed such as, for example, gas) by means of a pump from a tank at approximately 40 °C and it is filtered by means of in line filters.
  • the quantities of the RAP fine and coarse fractions required from time to time are delivered, respectively, to transport devices 7, 8 (in the example shown in figure 2 they are conveyor belts) as is, as appropriate, the virgin aggregate to the transport device 8, by means of dosing devices (belt feeders with frequency variator and integral weighing apparatus) incorporated into the hoppers 1, 2, 3, 4, and said transport devices carry them to the drum dryer 5.
  • the transport device 8 is connected with the inlet of the drum dryer 5 most proximate to the combustion chamber 6, and the transport device 7 is connected to the most distant inlet.
  • It is a heated and lagged cistern having sufficient capacity to store the bituminous emulsion required for the process. It is connected to a frequency variator driven pump, governed by means of a control system (PID) based on the readings of a flowmeter, to supply the bituminous emulsion to the blender 9.
  • PID control system
  • the blender 9 receives the flow of material egressing from the drum dryer 5 and the bituminous emulsion from the tank 10 at a temperature comprised between 60 and 80 °C.
  • the blender 9 is disposed beneath the drum dryer 5 in such manner that it receives the mixture of the RAP fractions (and, as appropriate, of virgin aggregate) by gravity, the final mixture attaining a temperature comprised between 90 and 110 °C. It is consequently a matter of a disposition differing from that of the plants of tempered bituminous mixtures such as that described in ES 2 368 980 A1 .
  • the blender 9 includes a system of measurement of the energy consumption in order to estimate, utilising appropriate correlation tables, the humidity of the final mixture. This parameter is fundamental because, in order to ensure adequate compaction when laying on site it is necessary that the humidity of the mixture ranges between 0.5 and 1 %.
  • the installation provides for the possibility of adding water to the blender in order to achieve the desired humidity in the final mixture.
  • the bituminous mixture egressing from the blender 9 is carried to a holding hopper 12 by means of a raising device, such as, for example, a slat conveyor 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Road Paving Structures (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP15824453.3A 2014-07-23 2015-04-17 Procédé et installation pour la fabrication de mélanges bitumineux trempés avec un matériau récupéré de mélanges bitumineux Withdrawn EP3173526A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201431103A ES2560895B2 (es) 2014-07-23 2014-07-23 Procedimiento y planta de fabricación de mezclas bituminosas templadas con material recuperado de mezclas bituminosas
PCT/ES2015/000054 WO2016012635A1 (fr) 2014-07-23 2015-04-17 Procédé et installation pour la fabrication de mélanges bitumineux trempés avec un matériau récupéré de mélanges bitumineux

Publications (2)

Publication Number Publication Date
EP3173526A1 true EP3173526A1 (fr) 2017-05-31
EP3173526A4 EP3173526A4 (fr) 2018-02-21

Family

ID=55162541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15824453.3A Withdrawn EP3173526A4 (fr) 2014-07-23 2015-04-17 Procédé et installation pour la fabrication de mélanges bitumineux trempés avec un matériau récupéré de mélanges bitumineux

Country Status (11)

Country Link
US (1) US20170211243A1 (fr)
EP (1) EP3173526A4 (fr)
BR (1) BR112017001136A2 (fr)
CA (1) CA2955110A1 (fr)
CL (1) CL2017000167A1 (fr)
CO (1) CO2017000439A2 (fr)
ES (1) ES2560895B2 (fr)
MA (1) MA40442A (fr)
MX (1) MX2017000924A (fr)
PE (1) PE20170190A1 (fr)
WO (1) WO2016012635A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3964646A1 (fr) * 2020-09-03 2022-03-09 Pakexa AG Procédé de traitement des solides contenant du bitume et/ou du goudron

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114687266B (zh) * 2022-05-30 2022-08-19 江苏南通冠仟新材料科技有限公司 基于程序控制的再生沥青混凝土智能翻拌方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096588A (en) * 1975-08-11 1978-06-20 Mendenhall Robert Lamar Recycled asphalt-aggregate process and apparatus
US4126397A (en) * 1976-12-27 1978-11-21 Mendenhall Robert Lamar Asphaltic concrete recycle apparatus
US4153471A (en) * 1976-12-27 1979-05-08 Mendenhall Robert Lamar Process for treating exhaust gaseous mixtures from directly exposing asphalt-aggregate compositions to hot gases
US4481039A (en) * 1981-08-17 1984-11-06 Mendenhall Robert Lamar Method for recycling asphaltic concrete
US4619550A (en) * 1984-10-05 1986-10-28 Cd High Technology, Inc. Microwave method and apparatus for heating loose paving materials
US9683336B2 (en) * 2011-04-14 2017-06-20 Astec, Inc. Apparatus and method for an asphalt plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3964646A1 (fr) * 2020-09-03 2022-03-09 Pakexa AG Procédé de traitement des solides contenant du bitume et/ou du goudron

Also Published As

Publication number Publication date
WO2016012635A1 (fr) 2016-01-28
MX2017000924A (es) 2017-03-14
MA40442A (fr) 2017-05-31
CA2955110A1 (fr) 2016-01-28
US20170211243A1 (en) 2017-07-27
ES2560895B2 (es) 2017-01-16
BR112017001136A2 (pt) 2018-01-30
CO2017000439A2 (es) 2017-04-10
EP3173526A4 (fr) 2018-02-21
ES2560895A1 (es) 2016-02-23
PE20170190A1 (es) 2017-04-05
CL2017000167A1 (es) 2017-07-21

Similar Documents

Publication Publication Date Title
Liu et al. Technological, environmental and economic aspects of Asphalt recycling for road construction
CN102260058B (zh) 基于沥青路面旧料热再生的沥青路面料生产工艺
EP2835470B1 (fr) Procédé et dispositif de fabrication de béton bitumineux à l'aide de granulats issus d'une pluralité de flux de matériaux
EP3183391B1 (fr) Système et procédé pour la production d'un mélange d'asphalte
EP2872693B1 (fr) Usine d'asphalte d'intérieur pour la production d'un produit d'enrobé à chaud à haute performance
CN203007778U (zh) 一种厂拌热再生沥青混合料的装置
US20170306570A1 (en) System and Method for Recycling Asphalt through Radiant and Convection Heating and Simultaneous Gentle Tumbling
US8591092B2 (en) Low emission energy efficient 100 percent RAP capable asphalt plant
EP2657404A2 (fr) Appareil et procédé de séchage de matière particulaire
CN109183560B (zh) 沥青混合料厂拌热再生设备的尾气处理系统
RU2572881C2 (ru) Установка для производства асфальтов полутеплого смешения
EP3173526A1 (fr) Procédé et installation pour la fabrication de mélanges bitumineux trempés avec un matériau récupéré de mélanges bitumineux
KR101296529B1 (ko) 순환골재 제조시스템
WO2010054453A1 (fr) Procédé et installation de traitement d'enrobés à chaud d'asphalte
US20140119829A1 (en) Mobile microwave processing unit for pavement recycling and asphalt pavement production
NL1003236C2 (nl) Werkwijze voor het recycleren van asfalt.
GB2485229A (en) Apparatus for drying particulate materials
KR101096778B1 (ko) 재생 아스콘 제조장치
GB2205573A (en) Asphalt mix
KR20000042891A (ko) 아스팔트 재생장치
US11319677B2 (en) Hi-recycle asphalt batch plant
RU2793907C1 (ru) Способ утилизации отходов нефтяной промышленности в дорожном строительстве
KR20060009057A (ko) 폐 아스팔트 재생 운전시스템
CN107460816A (zh) 沥青混合料回收再利用系统
BG2991U1 (bg) Съоръжение за производство на асфалтови и бетонови смеси към асфалтосмесител

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20170223

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20180118

RIC1 Information provided on ipc code assigned before grant

Ipc: E01C 19/10 20060101AFI20180112BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20181220

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20190501