EP0033812B1 - Vorrichtung zur Herstellung umhüllter bituminöser Produkte für Strassendecken - Google Patents

Vorrichtung zur Herstellung umhüllter bituminöser Produkte für Strassendecken Download PDF

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Publication number
EP0033812B1
EP0033812B1 EP80400209A EP80400209A EP0033812B1 EP 0033812 B1 EP0033812 B1 EP 0033812B1 EP 80400209 A EP80400209 A EP 80400209A EP 80400209 A EP80400209 A EP 80400209A EP 0033812 B1 EP0033812 B1 EP 0033812B1
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EP
European Patent Office
Prior art keywords
drum
zone
materials
products
sheets
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.)
Expired
Application number
EP80400209A
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English (en)
French (fr)
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EP0033812A1 (de
Inventor
Pierre Malbrunot
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.)
Creusot Loire SA
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Creusot Loire 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 Creusot Loire SA filed Critical Creusot Loire SA
Priority to DE8080400209T priority Critical patent/DE3066121D1/de
Priority to EP80400209A priority patent/EP0033812B1/de
Priority to AT80400209T priority patent/ATE5904T1/de
Publication of EP0033812A1 publication Critical patent/EP0033812A1/de
Application granted granted Critical
Publication of EP0033812B1 publication Critical patent/EP0033812B1/de
Expired 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
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1027—Mixing in a rotary receptacle
    • E01C19/1031—Mixing in a rotary receptacle the mixture being discharged continuously
    • 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
    • E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
    • F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
    • 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 invention relates to a device for the preparation of bituminous coated products for road surfaces, from liquid bituminous binders and granular products constituted by recycled asphalts from used road surfaces and by new aggregates, the proportion of asphalt recycled by relative to the quantity of new aggregates which can range from 0 to 100%.
  • the used coating can be removed by milling or, if it has been removed by a plate, subjected to crushing: one thus obtains granules consisting of small aggregates such as pebbles coated and agglomerated together by the asphalt binder.
  • the products resulting from these increases in pavement are generally eliminated, but it appeared desirable to reuse them in the coating plants, because this operation has the advantage of saving new products, aggregates or bituminous binders, and solving the problem of eliminating waste from lifting operations.
  • the most efficient coating installations which are now commonly used, include a large cylindrical drum inside which are carried out both the drying of the granular materials to be coated, the kneading of these granular products with the liquid bituminous binder and the coating in a hot atmosphere of the materials granulated with the bitumen.
  • the materials are therefore brought into contact with very hot gases or with a flame during at least part of their journey in the cylindrical dryer-coating drum.
  • the materials are in fact dried and heated inside the drum by the flame of a burner penetrating by one of the faces of the drum and directed axially in this drum, generally by the inlet face of the products to be coated.
  • the drum is rotatably mounted around its longitudinal axis and slightly inclined so as to ensure the circulation of the products which are lifted inside the drum by fins arranged on the internal surface of this drum, so as to ensure contacting between the hot gases and the solid matter circulating in the drum.
  • the materials are generally introduced into the drum through the wet and cold inlet face and are heated and dried at least partially in the first zones of the drum before being kneaded with the liquid bituminous binder and coated in a hot atmosphere. in the last areas of the drum.
  • a coating installation comprising a conventional drying-mixing drum at the inlet end of which a combustion chamber of refractory steel has been adapted, so as to introduce the mixture of granulated products, which may include a certain proportion. of recycled products, after the burner flame to avoid destruction by combustion of the bitumen contained in the recycled materials.
  • the flame and the gases at very high temperature are produced in a separate chamber of the drum inside which the granulated materials are introduced and in which these materials are lifted throughout the section of the drum to bring them into contact with the hot gases coming from the combustion chamber, so that direct contact of the flame with the granulated materials containing bitumen is avoided and the use of recycled products, while avoiding their smoke-generating combustion, is made possible.
  • An installation comprising a double drum constituted by an internal drum of small diameter and an external drum of large diameter mounted coaxially and in such a way that the drum of small diameter is projecting with respect to the drum of large diameter over a certain length corresponding to the entry area for new products which is introduced into the small internal drum inside which the burner flame penetrates.
  • the recycled materials are introduced into the large-diameter external drum and run the length of this external drum until they are mixed with the new materials at the outlet of the small-diameter internal drum emerging inside the external drum.
  • This device has certain drawbacks since the production capacity is reduced, the small drum not leaving a sufficient free volume to allow the development of sufficient thermal power for a drum of the diameter of the outer drum, and that the separation between new materials and recycled materials at the time of their introduction into the installation requires two feeding devices with continuous weighing of materials.
  • the length of the installation is considerably greater than the length of a conventional installation and the flexibility of use of this installation is not very great since it is not possible to manufacture coated materials from these installations. recycled materials only or from new materials only, in good conditions.
  • this device has the drawback of requiring two different feeding devices with continuous weighing, one at the inlet of the drum for new materials and the other after the flame at the orifices provided in the drum for the introduction of recycled materials.
  • the object of the invention is therefore to propose a device of the type described in FR-A-2 327 048 for the preparation of bituminous coated products for road surfaces, from liquid bituminous binders and granular products constituted by recycled asphalt coming from used road surfaces and new aggregates the proportion of asphalt recycled compared to the proportion of new aggregates which can range from 0 to 100%, consisting of a cylindrical drum mounted to rotate around its longitudinal axis on a platform and comprising means for driving in rotation, means for feeding granulated products, at one end of the drum called the inlet end, an area for introducing the products brought in by the supply means following the inlet end, in which the drum has helical fins for the rapid introduction of the products into the drum, a burner penetrating axially into the drum from the cold side ntale of the entry end, an insulation and drying zone where the internal surface of the drum is lined with lifting devices allowing the lifting of the granulated materials up to the upper part of the drum during its rotation and the constitution by fallout of these materials
  • drum 1 consisting of a cylindrical steel casing rotatably mounted about its longitudinal axis on a platform not shown.
  • Support and rotation devices also not shown make it possible to rotate this cylindrical casing continuously around its longitudinal axis during the operation of the installation.
  • the drum has an inlet face 2 through which a device for feeding granulated products 3 penetrates, which makes it possible to continuously feed into the drum, the granulated products constituted both by new materials and by recycled materials.
  • the drum also includes a device 6 for supplying liquid bituminous binder making it possible to introduce this bituminous binder inside the drum and to spread it in divided form over the granulated materials.
  • the drum has an introduction zone 10 receiving the solid granulated products brought by the feed device 3 and causing them to arrive very quickly without contact with the flame 5 of the burner in the zone 11 of the drum.
  • the internal surface of the drum in zone 10 is lined with helically wound fins 14 which allow, depending on the rotation of the drum, the extremely rapid introduction of products which have a practically negligible residence time in zone 10 and which remain during this short period of time retained against the wall of the drum by the fins 14.
  • the next zone 11 of the drum is a zone for transferring and heating the granulated materials coming from zone 10, inside which the flame 5 of the burner 4 develops.
  • the drum is lined with fins arranged projecting from the internal surface of the drum, according to sections of short pitch propellers.
  • the internal surface of the drum in zone 11 is lined with several sets of fins on which screen sheets 18 are fixed, so that a large part of the internal surface of the drum in zone 11 is protected by these sheets. screens.
  • the granulated materials comprising a certain proportion of recycled materials are introduced into the zone 11 of the drum in contact with the wall of this drum, they are guided and entrained by the fins 17 in a movement advancing them towards the interior of the drum and isolated from the flame 5 by means of the screen plates 18 which make it possible to avoid direct contact with the flame 5. Only a very small quantity of material falls through the interstices between the sheets, in the flame zone.
  • the granulated materials in zone 11, although isolated from direct contact with the flame are in contact during the whole crossing of this zone with gases at very high temperature, passing through the interstices between the sheets and with the hot metallic surface of the sheets 18, which causes them to dry and heat, allowing the bitumen from recycled materials to melt while avoiding the destruction of this bitumen.
  • the materials kept in contact with the internal surface of the drum behind the screen sheets make it possible to limit the heat losses through the surface of the drum and thus to improve the efficiency of the installation.
  • the fall of the materials in the flame and the direct contact between the flame and the recycled materials are avoided thanks to the sheet metal screens.
  • the layer of materials retained between the screen sheets and the wall of the drum makes it possible to protect this wall against the flame.
  • the height of the fins arranged along sections of propellers is sufficient to allow the circulation of the products against the wall of the drum.
  • This zone 11 is chosen so that the flame develops there normally.
  • Zone 12 of the drum which is a zone for insulating the heating and drying of the materials arranged after zone 11 is formed by a part of the drum where the internal surface of this drum is furnished with lifting devices whose cross section is visible in Figure 2.
  • Two sets of identical lifting devices have been arranged along the length of the drum, the first set comprising lifting devices 20 the second set of lifting devices 21 angularly offset on the surface of the drum relative to the fins 20 and arranged following the fins 20 along the length of the drum.
  • these lifting devices allow a collection of the solid materials granulated at the bottom part of the drum and a lifting of these materials up to the highest part of the drum where the granulated materials fall in free fall through the entire section of the drum, during the rotation of this drum.
  • a screen is thus formed in the whole section of the drum, this screen making it possible to completely isolate the flame 5 from the zone 13 of the drum located beyond the zone 12 constituting an insulation zone.
  • zone 12 the material previously heated by contact with the hot gases in zone 11 and traversed during its fall in rain into the drum by hot gases moving from the flame towards the outlet of the drum, undergoes intense drying which allows it to lose almost all of its moisture before it is introduced into zone 13. This addition of heat by the gases also makes it possible to complete the melting of the bitumen of the recycled materials.
  • the mixing of the materials during their lifting and their fall back into the section of the drum causes a mixing and a homogenization of the different solid materials constituting the charge introduced into the drum whether they are new aggregates, powders or recycled materials.
  • these materials introduced simultaneously but not constituting a homogeneous mixture upon entering the drum are effectively mixed in zone 12.
  • Zone 12 is a zone of short length (10 to 15% of the length of the tube) so that, despite the intensive drying of the materials in this zone, it is possible to prevent elements from flying off in large quantities in the gases circulating in the drum which avoids rejection of a large amount of dust in the gases leaving the drum.
  • the materials are introduced into the next practically dry and heated zone, so that spreading of the binder on these granulated materials at the start of zone 13 is greatly facilitated.
  • the binder spray tube 6 in fact opens roughly at the entrance to zone 13, that is to say at a place protected from the flame by the screen formed in zone 12 and where the gases circulating in the drum are at a moderate temperature.
  • the binder cannot be destroyed by the radiation of the flame and by the gases at too high a temperature.
  • zone 13 which is a zone for mixing the solid granulated product and the bituminous binder in a hot atmosphere
  • the internal surface of the drum is provided with lifting devices 26 making it possible to lift the granulated materials up to the upper part of the drum and to make fall in all the section of this drum in order to ensure a good contact between these materials falling in rain and the gas crossing zone 13 of the drum to ensure the hot coating of the materials, that is to say a spreading and a bond between the surface of the granulated materials and the bitumen.
  • the lifting devices 26 are arranged in four successive sets offset angularly on the surface of the drum, along the length of the zone 13.
  • zone 13 which constitutes the last zone of the drum
  • the coated materials fall into a discharge chamber 16 which allows on the one hand the collection of the coated materials and on the other hand, thanks to a chimney 27, the capture of gases as they exit the drum.
  • the area 13 is limited by two rings 28 and 29, the height of which is substantially the same as that of the lifting devices, these rings serving as a screen and helping to increase the thermal efficiency of the drum.
  • zone 13 the circulating gases which entrain, in the zones where the granulated materials are dried, part of the pulverulent contained in these materials come into contact with coated particles which retain the pulverulent in suspension in the gases and thus dust this gas which leaves through the chimney 27 with a negligible proportion of dust.
  • the coating quality and the dust removal efficiency of the gases in zone 13 are all the better the longer this zone is.
  • the length of this zone is more than half the length of the drum.
  • One of the advantages of the device according to the invention is that it is possible to use granulated materials consisting of both new materials and recycled materials in any proportion. In particular, it is possible to use only new materials or only recycled materials or even any proportion of new materials with respect to recycled materials without, however, modifying the operation of the device according to the invention.
  • bituminous binder when using a mixture of recycled materials and new materials, it is possible to introduce bituminous binder in addition or to use only the bituminous binder of the recycled material.
  • a weight detector which determines the flow rate of solid materials entering the drum allows continuous calculation, taking into account the water content of the materials measured by a humidity detector, and possibly the amount of recycled material. introduced with the new material, the content of filler binder necessary to carry out the coating.
  • the device according to the invention makes it possible to use the same drum for the coating of new materials and for the coating of recycled materials, the production capacity of the installation being the same in all cases and the combustion of the bitumen contained. in recycled materials being avoided through the use of sheet metal screens in the area where the flame develops.
  • the screen sheets 18 can have a section, by a plane perpendicular to the axis of the drum said transverse plane, having an L-shape to ensure better retention of the product. It is also possible to have screen sheets having another profiled shape than the L shape, for example an inverted U shape whose branches are directed towards the wall of the drum.
  • the shape of the lifting devices in zones 12 and 13 is not limited to the shapes which have been shown in FIGS. 3 and 4, these lifting devices being able to have an L-shape, a bucket shape as shown or a rounded shape in a more or less closed gutter.
  • the screen sheets can also occupy only part of the surface of the drum depending on the extreme conditions of use of this drum .
  • the device according to the invention can be used for the production of any bituminous mix usable for road surfaces.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Machines (AREA)
  • Road Paving Structures (AREA)

Claims (5)

1. Vorrichtung zur Herstellung von bitumen- überzogenen Produkten für Straßenbeläge ausgehend von flüssigen Bitumenbindemitteln und granulierten Produkten, die aus wiederverwerteten, von abgenützten Straßendekken herrührenden Straßenbelägen und neuen Zuschlagstoffen bestehen, wobei das Mengenverhältnis zwischen wiederverwerteten Straßenbelägen und neuen Zuschlagstoffen innerhalb eines Bereiches von 0-100 % liegen kann, mit einer Trommel (1) von zylindrischer Form, die drehbar um ihre Längsachse auf einer Plattform bzw. Grundplatte montiert ist und die einer Drehantriebseinrichtung und einer Granulatzufuhreinrichtung an einem der Enden der Trommel (1) zugeordnet ist, das als Einlaßende (2) für die Produkte bezeichnet wird und eine Einführungszone (10) für die von der Zufuhreinrichtung (3) zugeführten Produkte dem Einlaßende (2) folgend besitzt, in welcher Zone die Trommel (1) mit spiralförmigen Flügeln (14) für die rasche Einführung der Produkte in die Trommel (1) versehen ist, wobei ein Brenner (4) von der Stirnfläche des Einlaßendes (2) aus axial in die Trommel ragt, mit einer Trocken- und Isolierungszone (12), in welcher die Innenfläche der Trommel (1) mit Hebeeinrichtungen (20, 21) versehen ist, welche das Hochheben der granulierten Materialien bis zum oberen Abschnitt der Trommel (1) während ihrer Drehung und die Bildung eines kontinuierlichen Schirmes aus zurückfallenden Materialien zulassen, welcher die Flamme (5) des Brenners (4) gegen die nachfolgende Zone (13) der Trommel isoliert, welche eine Mischzone mit heißer Atmosphäre ist, in welcher die Trommel mit Hebeeinrichtungen (26) zum Heben der Produkte und ihr Zurückfallen über den gesamten Querschnitt der Trommel versehen ist und an deren Einlaß eine Zufuhreinrichtung (6) für flüssiges Bitumenbindemittel mündet, und schließlich mit einer feststehenden Kammer (16) zum Austragen der umhüllten Produkte bzw. Straßenbelagprodukte und der Gase (27), die innerhalb der Trommel (1) zirkulieren, welche Kammer mit dem Auslaßende der Trommel (1) kommuniziert, wobei die Trommel (1) von ihrem Einlaßende bis zu ihrem Auslaßende geneigt ist, um die Zirkulation bzw. Weiterbewegung der Produkte zu gewährleisten, dadurch gekennzeichnet, daß die Trommel (1) weiters zwischen der Einführungszone (10) und der Isolier- und Trockenzone (12) eine Übertragungs-und Heizzone (11) für die granulierten Materialien besitzt, in welcher die Innenfläche der Trommel (1) mit Flügelstummeln (17) versehen ist, die spiralförmig an der Innenfläche der Trommel angeordnet sind, in bezug auf diese Fläche vorspringen und an ihren von der Innenfläche der Trommel entfernt gelegenen Kanten mit Schirmblechen (18) versehen sind, die in Längsrichtung über die gesamte Länge der Übertragungs- und Heizzone (11) angeordnet sind, wobei die Flügel (17) die Rolle von Führungen für die granulierten Materialien, die zwischen der Innenfläche zirkulieren, und von Versteifungen zum Festhalten der Schirmbleche (18) übernehmen, die von der Innenfläche der Trommel (1) entfernt liegen, wobei die Schirmbleche (18) einander entlang ihren seitlichen angrenzenden Rändern (19) überdecken und einen Zwischenraum bzw. Spalt zwischen den angrenzenden Rändern (19) bilden und daß die Hebeeinrichtungen (20, 21) der Isolier-und Trockenzone (12) in mehreren Sätzen winkelversetzt innerhalb der Trommel (1) angeordnet sind.
2. Vorrichtung zur Herstellung von überzogenen Produkten bzw. Straßenbelagprodukten nach Anspruch 1, dadurch gekennzeichnet, daß die Schirmbleche (18) flache Bleche sind, deren einer Rand (19) zum Inneren der Trommel (1) zu umgebogen ist und daß sie so angeordnet sind, daß der umgebogene Rand (19) eines Bleches (18) leicht den nicht umgebogenen Rand des angrenzenden Bleches überdeckt.
3. Vorrichtung zur Herstellung von überzogenen Produkten bzw. Straßenbelagprodukten nach Anspruch 1, dadurch gekennzeichnet, daß die Schirmbleche (18) in einer Ebene senkrecht zur Achse der Trommel oder einem Transversalschnitt einen L-förmigen Querschnitt aufweisen.
4. Vorrichtung zur Herstellung von überzogenen Produkten bzw. Straßenbelagprodukten nach Anspruch 1, dadurch gekennzeichnet, daß die Schirmbleche (18) einen U-förmigen Querschnitt aufweisen.
5. Vorrichtung zur Herstellung von überzogenen Produkten bzw. Straßenbelagprodukten nach einem der Ansprüche 1, 2, 3 und 4, dadurch gekennzeichnet, daß die Zufuhreinrichtung (3) für granulierte Produkte ein Förderband umfaßt, das einer Wägeeinrichtung zugeordnet ist, welche gleichzeitig die neuen Zuschlagstoffe und die wiederverwerteten Materialien aufnimmt.
EP80400209A 1980-02-12 1980-02-12 Vorrichtung zur Herstellung umhüllter bituminöser Produkte für Strassendecken Expired EP0033812B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8080400209T DE3066121D1 (en) 1980-02-12 1980-02-12 Apparatus for preparing coated bituminous products for road surfaces
EP80400209A EP0033812B1 (de) 1980-02-12 1980-02-12 Vorrichtung zur Herstellung umhüllter bituminöser Produkte für Strassendecken
AT80400209T ATE5904T1 (de) 1980-02-12 1980-02-12 Vorrichtung zur herstellung umhuellter bituminoeser produkte fuer strassendecken.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80400209A EP0033812B1 (de) 1980-02-12 1980-02-12 Vorrichtung zur Herstellung umhüllter bituminöser Produkte für Strassendecken

Publications (2)

Publication Number Publication Date
EP0033812A1 EP0033812A1 (de) 1981-08-19
EP0033812B1 true EP0033812B1 (de) 1984-01-18

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EP80400209A Expired EP0033812B1 (de) 1980-02-12 1980-02-12 Vorrichtung zur Herstellung umhüllter bituminöser Produkte für Strassendecken

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EP (1) EP0033812B1 (de)
AT (1) ATE5904T1 (de)
DE (1) DE3066121D1 (de)

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FR2473578B1 (de) * 1980-01-11 1986-03-21 Creusot Loire
CA1231707A (en) * 1982-12-02 1988-01-19 Wilhelm P.H. Voors Method and plant for recycling asphalt using hot aggregate confluence
FR2646728A1 (fr) * 1989-05-05 1990-11-09 Ermont Cm Dispositif de regulation du debit de recyclage de matieres pulverulentes dans une installation telle qu'un poste d'enrobage
CN102243014A (zh) * 2011-07-12 2011-11-16 武振华 一种稳焰溜料装置
FR2986016B1 (fr) * 2012-01-25 2014-03-21 Argumat Dispositif et procede de fabrication de produits enrobes, par exemple de produits enrobes bitumineux, a plaques de protection
CN103388964B (zh) * 2013-07-19 2014-12-10 溧阳市科华机械制造有限公司 一种切屑烘干炉
CN104654776A (zh) * 2015-02-13 2015-05-27 浙江万寿康生物科技有限公司 一种回转式轻质微粉干燥设备

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FR2327048A1 (fr) * 1975-10-08 1977-05-06 Creusot Loire Dispositif pour la preparation de produits principalement utilises pour la construction et l'entretien des routes
DE2617839C3 (de) * 1976-04-23 1979-01-18 Wibau (Westdeutsche Industrie- Und Strassenbau-Maschinen-Gesellschaft Mbh), 6466 Gruendau Einrichtung zum Aufbereiten von bituminösem Mischgut mit einer im Gleichstrom befeuerten Drehtrommel
FR2441682A1 (fr) * 1978-11-17 1980-06-13 Creusot Loire Dispositif pour la preparation de produits enrobes bitumineux pour revetements routiers
FR2449162A1 (fr) * 1979-02-16 1980-09-12 Creusot Loire Procede de preparation en continu de produits enrobes bitumineux de couleur quelconque

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032468A2 (de) * 1980-01-11 1981-07-22 Creusot-Loire Vorrichtung zur Herstellung von Schwarzgemischen ausgehend von Zuschlagstoffen, Bitumen und Feststoffen, die bei hoher Temperatur zum Schadennehmen neigen

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DE3066121D1 (en) 1984-02-23
EP0033812A1 (de) 1981-08-19
ATE5904T1 (de) 1984-02-15

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