EP0342125A1 - Vorrichtung und Verfahren zur Aufbereitung von bituminösen Produkten - Google Patents

Vorrichtung und Verfahren zur Aufbereitung von bituminösen Produkten Download PDF

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Publication number
EP0342125A1
EP0342125A1 EP89401299A EP89401299A EP0342125A1 EP 0342125 A1 EP0342125 A1 EP 0342125A1 EP 89401299 A EP89401299 A EP 89401299A EP 89401299 A EP89401299 A EP 89401299A EP 0342125 A1 EP0342125 A1 EP 0342125A1
Authority
EP
European Patent Office
Prior art keywords
drum
aggregates
zone
recycled
bituminous
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Withdrawn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
EP89401299A
Other languages
English (en)
French (fr)
Inventor
Guy Marconnet
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.)
Ermont CM
Original Assignee
Ermont CM
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 Ermont CM filed Critical Ermont CM
Publication of EP0342125A1 publication Critical patent/EP0342125A1/de
Withdrawn legal-status Critical Current

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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
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1068—Supplying or proportioning the 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
    • 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
    • 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

Definitions

  • the invention relates to a device for preparing bituminous products, from new aggregates and recycled bituminous mixes as well as a method and a device for preparing bituminous coated products, in particular for road surfaces, from bituminous products. intermediates obtained by mixing recycled bituminous mixes with new aggregates dried and heated beforehand.
  • a burner enters the drum at one of its ends and makes it possible to circulate in the drum hot gases which ensure the drying and heating of the materials circulating in the drum.
  • Such a drum performs both the drying and heating of the cold and wet aggregates entering the drum, the heating of the recycled asphalt and the mixing of the new aggregates and the recycled asphalt in contact with liquid bitumen brought into the drum by a cane. injection.
  • the internal wall of the drum is lined with blades of different shapes depending on the zones of the drum to ensure, thanks to the rotation of the drum, transport, mixing and / or lifting of the materials circulating in the drum.
  • drum-dryer-mixers have the disadvantage of bringing together, in the same enclosure, a flame, very hot gases and liquid bitumen. This results in a entrainment of bitumen vapor by the hot gases circulating in the drum, which results in a rapid clogging of the bag filters used for the dedusting of the gases leaving the drum and in a rejection of harmful vapors to the atmosphere.
  • These drawbacks are particularly marked in the case of drum-dryer-mixers with parallel currents, that is to say drum-dryer-mixer where the hot gases circulate inside the drum, in the same direction as the materials. solid.
  • dryer-recycler which performs both the drying and heating of new aggregates, the heating and melting of recycled asphalt in granular form and their mixing with new dried and reheated aggregates.
  • the intermediate bituminous product obtained at the outlet of the dryer-recycler can be introduced into a mixer into which liquid bitumen is injected which ensures the final coating of the granular products pre-coated in the dryer-recycler.
  • the dryer-recyclers known and used hitherto are designed in a form such that very hot gases come into contact with bituminous products and in particular with the coated mix, just before they leave the drum.
  • the hot gases therefore entrain bitumen vapors which are found in the atmosphere in the form of blue fumes well known to the operators of coating plants.
  • the object of the invention is therefore to propose a device for preparing bituminous products, from new aggregates and recycled bituminous mixes, of the type comprising a cylindrical drum mounted to rotate around its axis and slightly inclined relative to the plane. horizontal by the ends of which penetrate a burner and means for bringing cold and wet aggregates into the drum, as well as a ring for introducing recycled coated materials into the drum surrounding the latter in a zone for introducing recycled coated materials intermediates between the ends of the drum and means for recovering the pre-coated bituminous products at the outlet of the drum as well as means for collecting the gases charged with dust in circulation in the drum in which the burner on the one hand and the means for bringing aggregates into the drum on the other hand penetrate into the drum by opposite ends, the circulation of gases in the drum taking place against current compared to the circulation of aggregates ,, this permanent device to avoid pollution of the atmosphere by bitumen vapors and clogging of gas dust filters, while keeping the flexibility of use of the most recycling devices known performers of interior art.
  • the burner comprises an elongated body disposed in the axial direction of the drum and extending to an area of the drum remote from the ends in which the flame develops, the drum comprising, from the inlet end of the aggregates to the opposite end of the material outlet through which the burner enters: - a drying zone in which the internal wall of the drum is lined with lifting vanes, - the flame zone in which the internal wall of the drum is provided with material retaining vanes against the wall, - and, located entirely downstream of the flame zone and around the burner body, the zone for introducing recycled asphalt, then a zone for reheating and mixing in which the drum carries on its internal surface blades for mixing aggregates dried and heated and recycled bituminous mixes.
  • the invention also relates to a device for preparing bituminous coated products for road surfaces comprising, in combination with the recycler dryer device according to the invention. tion, a mixer having a fixed casing disposed at the outlet of the drum of the dryer and recycler device.
  • FIG 1 we see the installation which includes a platform 1 for supporting the drum 2 of the dryer-recycler according to the invention.
  • the platform 1 includes support devices on the ground of the site not shown and means for adjusting its inclination relative to the horizontal plane, making it possible to adjust the inclination of the axis XX ′ of the drum 2 of the dryer-recycler.
  • the platform 1 can be constituted by the platform of a road trailer comprising extensible and retractable support crutches for the installation of the device on the site.
  • the drum 2 comprises a cylindrical envelope rotatably mounted on the platform about its axis XX ′, by means of four rolling rollers 4 and two rolling rings 5 secured to the external surface of the envelope of the drum.
  • the drum 2 has a first end 2a or inlet end through which penetrates the outlet end of a belt conveyor 6 allowing the supply of the drum with cold and wet aggregates 7.
  • the inlet end 2a of the drum is engaged inside a suction box 8 of the gases circulating in the drum.
  • the outlet end 2b of the drum opposite its inlet end is engaged inside a fixed structure 9 comprising a vertical plate 9a and a chute 10 for discharging and discharging materials 11 at the outlet of the drum.
  • the plate 9a is traversed by the elongated cylindrical body 12 of a burner 13 comprising a fan 14 carried by the platform 1.
  • the body of the burner 12 disposed along the axis XX ′ of the drum has an end 12a from which the flame 16 develops located in the advanced position inside the drum relative to the outlet end 2b.
  • this end 12a can be located at a distance from the end 2b of between a quarter and a third of the total length of the drum.
  • the drum 2 comprises, along its length, several successive zones which are differentiated by the shape of the elements lining the internal surface of the drum in the zone considered and by the function provided by this zone, when the device is in service.
  • the latter From the inlet end 2a of the drum to the outlet end 2b, the latter comprises an introduction zone 20, a drying zone 21, a flame zone 22, an introduction zone recycled coated materials 23 ′ and a reheating and mixing zone 23. Consequently, the zone for introducing recycled coated materials 23 ′ separates and insulates the reheating and mixing zone from the flame zone.
  • Zone 20 ensures rapid introduction of the aggregates 7 brought to the drum by the conveyor 6 into the drying zone 21.
  • the internal wall of the drum 2 is furnished by fins 24 projecting radially from the internal surface. of the drum and arranged along helices having for axis the axis XX ′ of the drum.
  • the internal surface of the drum 2 is provided with lifting vanes 25 whose cross section is in the form of a hook, which makes it possible to raise the aggregates 7 up to the part of the drum and constitute a continuous curtain of aggregates falling in cascade in the section of the drum, during its rotation.
  • the continuous curtain of aggregates is therefore crossed by the hot gases coming from the flame 16 of the burner located in the zone 22 and circulating in the axial direction of the drum (arrow 30).
  • the drum is inclined so that its inlet end 2a is at a level higher than its outlet end 2b.
  • the solid materials and in particular the aggregates 7 therefore circulate in the drum in the opposite direction to the direction of circulation of the hot gases.
  • the cold and wet aggregates 7 as they enter the drum are dried and heated by a circulation of hot gases at against the current. When they exit through the suction box 8 (arrow 31), the gases are loaded with dust released by the aggregates 7 during their drying.
  • the internal wall of the drum 2 is provided with vanes 26 making it possible to retain the dried and heated aggregates 7 in the zone 21 against the internal wall of the drum 2.
  • the vanes 26 constituted by strips of folded sheet metal have a concave section directed towards the wall of the drum and a practically planar external surface directed towards the flame 16.
  • the vanes 26 are fixed along one of their edges on the surface of the drum, the opposite edge of the blade providing a narrow gap with respect to the wall of the drum, so as to allow the filling of the blades and a limited discharge of the aggregates 7 during the rotation of the drum.
  • vanes 26 of known shape in the technique of drying drums and coaters make it possible to provide a free zone at the central part of the drum in which the flame 16 can develop.
  • the drum 2 is surrounded by the recycling ring 32 which has an annular fixed part 33 constituting at its upper part a hopper 34 for introducing recycled materials 27 and an annular movable part 35 integral with the external wall of the drum comprising chutes 38 and passage openings 39 towards the interior of the drum, so as to pass the recycled materials discharged into the hopper 34 inside the zone 23 ′ Of the drum.
  • a small internal drum 37 is fixed inside the drum 2, in a coaxial manner and ensures the passage of the materials re cycled introduced into the drum, in the zone 23 located downstream of the recycling ring 33.
  • Helical fins 40 are fixed on the outer surface of the drum 37 to ensure the transport of recycled asphalt.
  • Helical fins 41 are fixed to the outside of the drum 37 to transport the dried and heated aggregates. The recycled coated materials 27 and the aggregates 7 are therefore introduced at the entrance to the zone 23 from the outside and from the inside of the drum 37 respectively.
  • the inner surface of the drum 2 is lined with flat vanes 28 in the zone 23 situated downstream from the zone for introducing recycled asphalt.
  • the recycled materials 27 introduced into the drum are thus intimately mixed with the aggregates 7 coming from the drying zone 21, via the flame zone 22 and the drum 37.
  • the vanes 28 perform a mixing of the bed of granular materials constituted by the aggregates 7 and the bituminous mixes 27.
  • the mixing is carried out without significant lifting of the bed of materials which remains in contact with the wall of the drum.
  • the aggregates entering zone 23 have been dried and heated in zone 21 and in zone 22 and are therefore at a high temperature when they come into contact with the recycled asphalts 27.
  • the recycled coated materials are therefore heated by contact with the aggregates, which produces a softening and a fusion of the bitumen layer covering the recycled asphalt.
  • the molten bitumen at least partially covers the aggregates during mixing, so that at the outlet of the drum, the pro duits spilled by the chute 10 are formed in part by recycled materials covered with molten bitumen and in part by pre-coated aggregates.
  • bituminous materials circulating in the zone 23 are therefore not subjected to hot gases in circulation, risking entraining bitumen vapors towards the outlet of the drum.
  • the gases exiting through the suction box 8 therefore no longer contain bitumen vapor.
  • the hot pre-coated bituminous products discharged from the chute 10 are introduced into a kneader 42 of conventional type fixed under the platform 1.
  • the kneader 42 comprises a fixed casing 43 in which two shafts 44 carrying kneading arms 45 are rotatably mounted.
  • Liquid bitumen is introduced into the mixer, for example by means of an injection pipe 46.
  • the pulverulent materials recovered in the gases leaving through the stack 8 are introduced at the inlet of the mixer so as to obtain a correct dosage of pulverulent materials in the coated products obtained at the outlet of the mixer.
  • the coated products obtained 50 are discharged through a chute 47 from which they can be stored for their transport and their use on a road construction site.
  • the starting aggregates contain a large quantity of pulverulent materials (dusty aggregates) the pulverulent materials separated from the aggregates during drying and entrained by the gases are not reintroduced into the mixer, the residual quantity of pulverulent materials leaving the drum may be sufficient to obtain satisfactory properties of the mixes.
  • the small drum 37 of the zone for introducing recycled asphalt 23 ′ concentrates the gases in the central zone of the drum 2. This embodiment makes it possible to direct the vapors given off by the recycled materials in the reheating zone 23 towards the central part of zone 22, that is to say towards flame 16 where they are burned.
  • the main advantages of the device according to the invention are to heat and mix recycled asphalt with new aggregates, in a quiet area which is not subject to the circulation of hot gases while allowing efficient heating and bone incorporation of recycled asphalt in new aggregates.
  • the device according to the invention makes it possible to use a proportion of recycled materials of up to 80% by weight of the total amount of solid materials.
  • the device also makes it possible to eliminate pollution of the atmosphere by bitumen vapors and to guarantee satisfactory operation of the dust removal filters which no longer undergo clogging by the bitumen.
  • the liquid bitumen is not capable of producing polluting vapors in the final phase of the coating.
  • the device and the method according to the invention make it possible to easily carry out the removal of excess fines in the case of dusty aggregates.
  • additives such as liquid doping products or fibers
  • the device according to the invention can easily be substituted for a conventional dryer, in a discontinuous station according to the old technique, so as to incorporate a certain proportion of recycled materials into new materials.
  • the introduction of the powdery material can be done directly in the mixer therefore without risk of steam escaping and pulverization flowing out.
  • the device according to the invention can also be used for the manufacture of cold products such as hydraulic gravel or bituminous mix with emulsion.
  • the components of the mixture can be introduced through the inlet of the recycling ring.
  • dryer-recycler device can be used with a continuous or discontinuous mixer with one or two shafts and more generally with a mixer of any type.
  • the drum 2 may have a substantially smaller diameter (from 20 to 25%) in the reheating and mixing zone compared to its diameter in the drying zone and in the flame zone;
  • the vanes lining the different zones of the drum may have shapes different from those which have been described, insofar as the lifting or retaining or kneading functions in these different zones are correctly performed.
  • the device and the method according to the invention apply to the manufacture of any bituminous product from new aggregates and recycled coated materials.
EP89401299A 1988-05-13 1989-05-10 Vorrichtung und Verfahren zur Aufbereitung von bituminösen Produkten Withdrawn EP0342125A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8806474A FR2631354A1 (fr) 1988-05-13 1988-05-13 Dispositif et procede de preparation de produits bitumineux
FR8806474 1988-05-13

Publications (1)

Publication Number Publication Date
EP0342125A1 true EP0342125A1 (de) 1989-11-15

Family

ID=9366292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401299A Withdrawn EP0342125A1 (de) 1988-05-13 1989-05-10 Vorrichtung und Verfahren zur Aufbereitung von bituminösen Produkten

Country Status (5)

Country Link
US (1) US4954995A (de)
EP (1) EP0342125A1 (de)
JP (1) JPH0216203A (de)
DK (1) DK234289A (de)
FR (1) FR2631354A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2987631A1 (fr) * 2012-03-05 2013-09-06 Famaro Centrale d'enrobage et procede de production d'enrobes, en particulier pour revetements routiers
EP1916337B1 (de) * 2006-10-27 2017-05-24 Ap Technic Asphalt Plant Technic Vorrichtung zur Herstellung eines Asphaltbetons
EP3412829A1 (de) * 2017-06-09 2018-12-12 Ermont Anlage und verfahren zur asphaltherstellung

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Publication number Priority date Publication date Assignee Title
US5080581A (en) * 1991-04-10 1992-01-14 Combustion Design Corporation Method and apparatus for drying waste materials
US5176445A (en) * 1990-08-10 1993-01-05 Astec Industries, Inc. Apparatus for decontaminating soils
US5083870A (en) * 1991-01-18 1992-01-28 Sindelar Robert A Asphalt plant with segmented drum and zonal heating
US5364182A (en) * 1993-11-16 1994-11-15 Michael Hawkins Counter-flow asphalt plant with multi-stage combustion zone overlapping the mixing zone
US5664881A (en) * 1993-11-16 1997-09-09 Maxam Equipment, Inc. Counter-flow asphalt plant with multi-stage combustion zone overlapping the mixing zone
US5664882A (en) * 1996-04-04 1997-09-09 Cedarapids, Inc. System for concurrently remediating contaminated soil and producing hot mix asphalt
US6164809A (en) * 1998-11-30 2000-12-26 Hawkins; Michael R. Counter-flow asphalt plant with independently rotatable dryer and mixer
US6280073B1 (en) * 2000-06-09 2001-08-28 Dillman Equipment, Inc. Rotary elevator for feeding aggregate from a drum dryer to a mixing drum
US6672751B2 (en) 2001-01-18 2004-01-06 Michael R. Hawkins Counter-flow asphalt plant with combustion zone feed and exhaust gas heater
US7357562B2 (en) * 2003-03-11 2008-04-15 Hawkins Michael R Counter-flow drum mixer asphalt plant with two stage mixing zone
FR2866037B1 (fr) * 2004-02-09 2006-04-28 Emile Lopez Procede et dispositif de mise en temperature de granulats et/ou d'enrobes routiers, notamment d'enrobes usages a recycler
US7566162B1 (en) * 2006-03-07 2009-07-28 Astec, Inc. Apparatus and method for a hot mix asphalt plant using a high percentage of recycled asphalt products
US8220982B2 (en) 2008-07-22 2012-07-17 Terex Usa, Llc Energy efficient asphalt plant
PT2281945E (pt) * 2009-07-09 2012-02-15 Ammann Italy S P A Cilindro de secagem do tipo para instalações de produção de macadames betuminosos
FR2989393B1 (fr) * 2012-04-13 2014-06-06 Argumat Dispositif de fabrication de produits enrobes a chaud a sortie derivee et malaxeur externe et procede de fabrication d'enrobes a chaud correspondants
US9644329B2 (en) * 2015-01-14 2017-05-09 Gencor Industries, Inc. Recycled asphalt process

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US2421345A (en) * 1944-11-04 1947-05-27 Kenneth E Mcconnaughay Mixer
DE3110380A1 (de) * 1981-03-17 1982-09-30 ATS Asphalttechnik und Straßenbaugeräte GmbH & Co KG, 6236 Eschborn Verfahren zur aufbereitung von asphaltmischgut unter wiederverwendung alten asphaltmaterials sowie eine vorrichtung zur durchfuehrung des verfahrens
EP0114118A1 (de) * 1983-01-17 1984-07-25 Mobil Oil Corporation Verfahren und Vorrichtung zum Herstellen von Asphalt
DE3414365A1 (de) * 1984-04-16 1985-10-24 Erich Dipl.-Ing. 8000 München Schambeck Einrichtung zur aufbereitung von bituminoesem mischgut, insbesondere strassenbauasphalt
EP0183079A1 (de) * 1984-11-13 1986-06-04 Deutsche Asphalt GmbH Verfahren und Vorrichtung zur Aufbereitung von Asphaltmischgut unter Wiederverwendung aufgebrochenen Alt-Asphalts
US4616934A (en) * 1984-11-05 1986-10-14 Brock J Donald Drum mix asphalt plant with knock-out box and separate coater
DE3616995A1 (de) * 1986-05-21 1987-11-26 Riede Hermann Strassen Tiefbau Trockentrommel als teil einer trocken- und mischanlage zur herstellung von asphaltheissmischgut fuer fahrbahndecken od. dgl.

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US31904A (en) * 1861-04-02 Alfred m
DE2108370C2 (de) * 1971-02-22 1984-06-07 Schockmel et Cie, Louxembourg-Merl Selbsttragendes, plattenartiges Wandelement
FR2473578B1 (de) * 1980-01-11 1986-03-21 Creusot Loire
US4395129A (en) * 1982-02-04 1983-07-26 Iowa Manufacturing Company Of Cedar Rapids, Iowa Feed system for asphalt recycling drum mixers
US4427376A (en) * 1982-07-16 1984-01-24 Wylie Manufacturing Company Apparatus for heating aggregate, recycled asphalt and the like
DE3423521A1 (de) * 1984-06-26 1986-01-02 ATS Asphalttechnik und Straßenbaugeräte GmbH & Co KG, 6236 Eschborn Verfahren zur aufbereitung und herstellung von asphaltmischgut unter wiederverwendung alten asphaltmaterials sowie eine vorrichtung zur durchfuehrung des verfahrens
US4787938B3 (en) * 1986-06-30 1999-11-30 Standard Havens Countercurrent drum mixer asphalt plant

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421345A (en) * 1944-11-04 1947-05-27 Kenneth E Mcconnaughay Mixer
DE3110380A1 (de) * 1981-03-17 1982-09-30 ATS Asphalttechnik und Straßenbaugeräte GmbH & Co KG, 6236 Eschborn Verfahren zur aufbereitung von asphaltmischgut unter wiederverwendung alten asphaltmaterials sowie eine vorrichtung zur durchfuehrung des verfahrens
EP0114118A1 (de) * 1983-01-17 1984-07-25 Mobil Oil Corporation Verfahren und Vorrichtung zum Herstellen von Asphalt
DE3414365A1 (de) * 1984-04-16 1985-10-24 Erich Dipl.-Ing. 8000 München Schambeck Einrichtung zur aufbereitung von bituminoesem mischgut, insbesondere strassenbauasphalt
US4616934A (en) * 1984-11-05 1986-10-14 Brock J Donald Drum mix asphalt plant with knock-out box and separate coater
EP0183079A1 (de) * 1984-11-13 1986-06-04 Deutsche Asphalt GmbH Verfahren und Vorrichtung zur Aufbereitung von Asphaltmischgut unter Wiederverwendung aufgebrochenen Alt-Asphalts
DE3616995A1 (de) * 1986-05-21 1987-11-26 Riede Hermann Strassen Tiefbau Trockentrommel als teil einer trocken- und mischanlage zur herstellung von asphaltheissmischgut fuer fahrbahndecken od. dgl.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1916337B1 (de) * 2006-10-27 2017-05-24 Ap Technic Asphalt Plant Technic Vorrichtung zur Herstellung eines Asphaltbetons
FR2987631A1 (fr) * 2012-03-05 2013-09-06 Famaro Centrale d'enrobage et procede de production d'enrobes, en particulier pour revetements routiers
EP3412829A1 (de) * 2017-06-09 2018-12-12 Ermont Anlage und verfahren zur asphaltherstellung
FR3067371A1 (fr) * 2017-06-09 2018-12-14 Ermont Installation et procede de production d'enrobes

Also Published As

Publication number Publication date
US4954995A (en) 1990-09-04
JPH0216203A (ja) 1990-01-19
FR2631354A1 (fr) 1989-11-17
DK234289D0 (da) 1989-05-12
FR2631354B1 (de) 1994-04-22
DK234289A (da) 1989-11-14

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