EP2148004B1 - Method for producing asphalt - Google Patents

Method for producing asphalt Download PDF

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Publication number
EP2148004B1
EP2148004B1 EP09008351.0A EP09008351A EP2148004B1 EP 2148004 B1 EP2148004 B1 EP 2148004B1 EP 09008351 A EP09008351 A EP 09008351A EP 2148004 B1 EP2148004 B1 EP 2148004B1
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EP
European Patent Office
Prior art keywords
filler
granulate
old asphalt
asphalt
white material
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EP09008351.0A
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German (de)
French (fr)
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EP2148004A2 (en
EP2148004A3 (en
Inventor
Frank Wagner
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Benninghoven GmbH and Co KG
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Benninghoven GmbH and Co KG
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Priority to PL09008351T priority Critical patent/PL2148004T3/en
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Publication of EP2148004A3 publication Critical patent/EP2148004A3/en
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    • 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
    • E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
    • 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

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Asphalt, in dem Weißmaterial und Altasphaltgranulat weiterverarbeitet werden.The invention relates to a process for the production of asphalt in which white material and used asphalt granulate are further processed.

Verfahren zur Herstellung von Asphalt basieren auf dem Erwärmen von Gesteinsmaterial, sogenanntem Weißmaterial, sowie dem Beimischen von Zusatzstoffen. Aus der DE 40 35 050 C2 ist ein Verfahren zum Herstellen von Asphaltmischungen bekannt, wobei ein erhitztes Gemenge von einer Asphaltfabrik in eine Satellitenfabrik transportiert wird und dort mit zerschmolzenem Asphalt zu einer Asphaltmischung gemischt wird. Aus der EP 0 641 886 A2 ist eine Aufbereitungstrommel zum Erhitzen von Gesteinsmaterial und granuliertem Ausbauasphalt bekannt, wobei mit der Aufbereitungstrommel einfach und kostengünstig eine große Menge von granuliertem Ausbauasphalt erhitzt und dem neuen Gesteinsmaterial hinzugefügt werden kann. Weitere Verfahren und Vorrichtungen zur Herstellung von Asphalt sind aus der WO 2007/103345 A2 , der US 6,196,710 B1 , der US 4,867,572 und der US 4,600,379 A bekannt.Processes for the production of asphalt are based on the heating of rock material, so-called white material, as well as the admixture of additives. From the DE 40 35 050 C2 For example, a method for producing asphalt mixtures is known wherein a heated batch is transported from an asphalt factory to a satellite factory where it is mixed with melted asphalt to form an asphalt mixture. From the EP 0 641 886 A2 For example, a conditioning drum for heating rock material and granulated expansion asphalt is known, and with the conditioning drum, a large amount of granulated expansion asphalt can be easily and inexpensively heated and added to the new rock material. Other methods and apparatus for the production of asphalt are known from WO 2007/103345 A2 , of the US 6,196,710 B1 , of the US 4,867,572 and the US 4,600,379 A known.

Das Dokument WO 2007/103345 A2 offenbart ein Verfahren mit den Merkmalen des Oberbegriffs des Anspruchs 1The document WO 2007/103345 A2 discloses a method having the features of the preamble of claim 1

Der Erfindung liegt die Aufgabe zu Grunde, ein Verfahren zur Herstellung von Asphalt zu schaffen, wobei das Verkleben von feinkörnigem Altasphaltgranulat verhindert wird.The invention is based on the object to provide a process for the production of asphalt, wherein the adhesion of fine-grained Altasphaltgranulat is prevented.

Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Der Kern der Erfindung besteht darin, in einem Verfahren zur Herstellung von Asphalt durch eine Weiterverarbeitung von Weißmaterial und Altasphaltgranulat das Altasphaltgranulat vor Erreichen einer Weiterverarbeitungsstation mit einem Füller zu beaufschlagen. Als Weiterverarbeitungsstationen können eine Trockentrommel, eine Granulat-Trockentrommel, ein Mischer oder ein Heiß-Elevator dienen. Als Füller wird vorzugsweise Staub verwendet, der durch Anhaften eine klebrige asphaltgranulates in eine relativ trockene und rieselfähige Materialoberfläche wandelt. Diese Wirkung wird auch als sogenannter Panier-Effekt bezeichnet. Der dazu verwendete Füller liegt als Produkt einer Entstaubung vor, die Bestandteil einer Asphaltmischanlage ist, wobei der Füller aufgrund seiner Partikelgröße in Grobfüller und Feinfüller eingeteilt wird. Weiterhin kann der Füller auch als extern hergestelltes Produkt für die Beaufschlagung des Altasphaltgranulates verwendet werden.The object is solved by the features of claim 1. The essence of the invention is to apply in a process for the production of asphalt by further processing of white material and Altasphaltgranulat the Altasphaltgranulat before reaching a further processing station with a filler. Further processing stations may be a drying drum, a granulate drying drum, serve a mixer or a hot-elevator. As a filler dust is preferably used, which is sticky due to adhesion asphalt granules converts into a relatively dry and free-flowing material surface. This effect is also referred to as a so-called breading effect. The filler used for this is present as a product of dedusting, which is part of an asphalt mixing plant, the filler being divided into coarse fillers and fine fillers due to its particle size. Furthermore, the filler can also be used as an externally produced product for the application of Altasphaltgranulates.

Weitere vorteilhafte Ausgestaltungen der Erfindungen ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the invention will become apparent from the dependent claims.

Zusätzliche Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von fünf Ausführungsbeispielen an Hand der Zeichnung. Es zeigen:

Fig. 1 bis Fig. 5
schematische Darstellungen erfindungsgemäßer Anlagen zur Herstellung von Asphalt gemäß fünf Ausführungsbeispielen.
Additional features and details of the invention will become apparent from the following description of five embodiments with reference to the drawing. Show it:
Fig. 1 to Fig. 5
schematic representations of inventive plants for the production of asphalt according to five embodiments.

Eine in Fig. 1 dargestellte Anlage 1 weist eine Trockentrommel 4 auf, an die eine Einwurfband 9 angeordnet ist. Weiterhin ist in einem Auslaufbereich 7 der Trockentrommel 4 ein Schleuderband 6 vorgesehen. Ein Heißelevator 10 ist direkt mit dem Auslaufbereich 7 der Trockentrommel 4 verbunden. Ein Staub-Silo 11 ist über eine Rohrschnecke 5 mit dem Schleuderband 6 verbunden. In der Anlage 1 erfolgt eine kontinuierliche Erwärmung von Altasphaltgranulat 2, wobei ein Füller 3 ebenfalls kontinuierlich dem Altasphaltgranulat 2 vor einem Erwärmungsprozess in der Trockentrommel 4 zugeführt wird. Der Füller 3 steht als Produkt einer Entstaubung, die als Filter ausgeführt ist, in dem Staub-Silo 11 zur Verfügung. Die Zuführung des Füllers 3 zu dem Altasphaltgranulat 2 erfolgt über die Rohrschnecke 5 und kann weiterhin über alle bekannten und zweckmäßigen Förder-Vorrichtungen wie beispielsweise Förderbänder, Vibrorinnen oder Pneumatikförderungen erfolgen. Das mit dem Füller 3 beaufschlagte Altasphaltgranulat 2 wird über das Schleuderband 6 in dem Auslaufbereich 7 der Trockentrommel 4 einem Weißmaterial 8 zugeführt. Das Weißmaterial 8 wird über das Einwurfband 9 in die Trockentrommel 4 transportiert. In der Trockentrommel 4 erfolgt gleichzeitig ein Erwärmen des Weißmaterials 8 und des Altasphaltgranulates 2 sowie ein Mischen des Weißmaterials 8 mit dem Altasphaltgranulat 2. Eine erwärmte und aus dem mit dem Füller 3 beaufschlagten Altasphaltgranulat 2 und dem Weißmaterial 8 gemischte Masse wird über den Auslaufbereich 7 der Trockentrommel 4 in den Heißelevator 10 transportiert.An in Fig. 1 shown plant 1 has a drying drum 4, to which an insertion belt 9 is arranged. Furthermore, a spinning belt 6 is provided in a discharge area 7 of the drying drum 4. A Heißelevator 10 is connected directly to the outlet region 7 of the drying drum 4. A dust silo 11 is connected via a tube screw 5 with the spinner belt 6. In the plant 1, a continuous heating of Altasphaltgranulat 2 takes place, wherein a filler 3 is also continuously fed to the Altasphaltgranulat 2 before a heating process in the drying drum 4. The filler 3 is available as a product of dedusting, which is designed as a filter, in the dust silo 11 available. The Feeding of the filler 3 to the Altasphaltgranulat 2 via the tube screw 5 and can also be done on all known and appropriate conveyor devices such as conveyors, vibrators or pneumatic conveyors. The applied with the filler 3 Altasphaltgranulat 2 is fed via the spinner belt 6 in the outlet region 7 of the drying drum 4 a white material 8. The white material 8 is transported via the throw-in belt 9 into the drying drum 4. In the drying drum 4, a heating of the white material 8 and the Altasphaltgranulates 2 and a mixing of the white material 8 with the Altasphaltgranulat 2 takes place simultaneously. A heated and from the acted upon with the filler 3 Altasphaltgranulat 2 and the white material 8 mass is mixed over the outlet region 7 of Drying drum 4 transported in the heat elevator 10.

Im Folgenden wird unter Bezugnahme auf Fig. 2 ein zweitens Ausführungsbeispiel der Erfindung beschrieben. Konstruktiv identische Teile erhalten dieselben Bezugszeichen wie bei dem ersten Ausführungsbeispiel, auf dessen Beschreibung hiermit verwiesen wird. Der wesentliche Unterschied gegenüber dem ersten Ausführungsbeispiel besteht darin, dass ein Zugabe-Band 12 in einem Mittenbereich der Trockentrommel 4 angeordnet ist. Weiterhin ist das Staub-Silo 11 über die Rohrschnecke 5, einen Füllerelevator 13 und einen Zugabe-Ring 14 mit der Trockentrommel 4 verbunden. Im Unterschied zu dem ersten Ausführungsbeispiel wird der Füller 3 über die Rohrschnecke 5 und den Füllerelevator 13 dem Altasphaltgranulat 2 zugeführt. Das mit dem Füller 3 beaufschlagte Altasphaltgranulat 2 wird über , und über den Zugabe-Ring 14 in die Trockentrommel 4 transportiert. Dort erfolgt kontinuierliches Erwärmen und Mischen von dem Weißmaterial 8 und dem Altasphaltgranulat 2 in der Trockentrommel 4. Anschließend wird diese erwärmte, gemischte Masse in den Heißelevator 10 weiter transportiert.The following is with reference to Fig. 2 a second embodiment of the invention described. Structurally identical parts are given the same reference numerals as in the first embodiment, to the description of which reference is hereby made. The essential difference with respect to the first exemplary embodiment is that an addition belt 12 is arranged in a middle region of the drying drum 4. Furthermore, the dust silo 11 via the tube screw 5, a Füllerelevator 13 and an additional ring 14 with the drying drum 4 is connected. In contrast to the first embodiment of the filler 3 is fed via the tube screw 5 and the filler 13 to the Altasphaltgranulat 2. The applied with the filler 3 Altasphaltgranulat 2 is transported via, and via the addition ring 14 in the drying drum 4. There is continuous heating and mixing of the white material 8 and the Altasphaltgranulat 2 in the drying drum 4. Subsequently This heated, mixed mass is transported in the heat elevator 10 on.

Im Folgenden wird unter Bezugnahme auf Fig. 3 ein drittes Ausführungsbeispiel der Erfindung beschrieben. Konstruktiv identische Teile erhalten dieselben Bezugszeichen wie bei den beiden ersten Ausführungsbeispielen, auf deren Beschreibung hiermit verwiesen wird. Der wesentliche Unterschied gegenüber den ersten beiden Ausführungsbeispielen besteht darin, dass das Zugabe-Band 12 direkt mit einem Altasphaltgranulat-Elevator 16 verbunden ist, an dessen Ausgang eine Granulat-Trockentrommel 15 anschließt. Die Granulat-Trockentrommel 15 ist zusätzlich zu der Trockentrommel 4 in der Anlage 1 angeordnet und wird auch als Paralleltrommel bezeichnet.. Das Altasphaltgranulat 2 wird mit dem Füller 3 über die Rohrschnecke 5 beaufschlagt und über das Zugabe-Band 12 und dem Altasphaltgranulat-Elevator 16 der Granulat-Trockentrommel 15 zugeführt. Die kontinuierliche Erwärmung des Weißmaterials 8 erfolgt in der Trockentrommel 4, die kontinuierliche Erwärmung des Altasphaltgranulates 2 in der Granulat-Trockentrommel 15. Im Gegensatz zu der Zuführung des Weißmaterials 8 in die Trockentrommel 4 erfolgt in der Granulat-Trockentrommel 15 die Zugabe des Altasphaltgranulates 2 nicht an der Stelle, welche den größten Abstand zu einem Brenner der Granulat-Trockentrommel 15 aufweist, sondern an der Stelle, an welcher der Brenner der Granulat-Trockentrommel 15 installiert ist. Der Grund hierfür ist eine relativ höhere Wahrscheinlichkeit einer Entflammung des Altasphaltgranulates 2 gegenüber der des Weißmaterials 8, so dass das Altasphaltgranulat 2 in einem kalten und feuchten Ausgangszustand und nicht in einem getrocknetem Zustand mit dem Brenner der Granulat-Trockentrommel 15 in Kontakt kommt.The following is with reference to Fig. 3 A third embodiment of the invention described. Structurally identical parts are given the same reference numerals as in the first two embodiments, to the description of which reference is hereby made. The main difference with respect to the first two embodiments is that the addition belt 12 is connected directly to an old asphalt granulate elevator 16, at the output of which a granulate drying drum 15 connects. The granulate drying drum 15 is arranged in addition to the drying drum 4 in the system 1 and is also referred to as a parallel drum .. The Altasphaltgranulat 2 is applied to the filler 3 via the tube screw 5 and the addition belt 12 and the Altasphaltgranulat-Elevator 16th the granule drying drum 15 fed. The continuous heating of the white material 8 takes place in the drying drum 4, the continuous heating of Altasphaltgranulates 2 in the granular drying drum 15. In contrast to the supply of white material 8 in the drying drum 4 is carried out in the granules drying drum 15, the addition of Altasphaltgranulates 2 not at the point which has the greatest distance to a burner of the granule drying drum 15, but at the point at which the burner of the granular drying drum 15 is installed. The reason for this is a relatively higher likelihood of ignition of the scrap asphalt granules 2 relative to that of the white material 8, so that the scrap asphalt granules 2 come into contact with the burner of the granule drying drum 15 in a cold and moist initial state and not in a dried state.

Im Folgenden wird unter Bezugnahme auf Fig. 4 ein viertes Ausführungsbeispiel der Erfindung beschrieben. Konstruktiv identische Teile erhalten dieselben Bezugszeichen wie bei den ersten drei Ausführungsbeispielen, auf deren Beschreibung hiermit verwiesen wird. Der wesentliche Unterschied gegenüber den ersten drei Ausführungsbeispielen besteht darin, dass das Altasphaltgranulat 2 ohne vorheriges Erwärmen in der Trockentrommel 4 oder der Granulat-Trockentrommel 15 in einem kalten und feuchten Ausgangszustand dem getrockneten Weißmaterial 8 direkt in dem Heißelevator 10 zugeführt und dort kontinuierlich erwärmt und getrocknet wird. Die Beaufschlagung des Altasphaltgranulats 2 mit dem Füller 3 erfolgt über die Rohrschnecke 5 direkt vor der Zuführung des Altasphaltgranulates 2 in den Heißelevator 10.The following is with reference to Fig. 4 A fourth embodiment of the invention is described. Structurally identical parts receive the same reference numerals as in the first three embodiments, the description of which reference is hereby made. The main difference compared to the first three embodiments is that the Altasphaltgranulat 2 supplied without prior heating in the drying drum 4 or the granulate drying drum 15 in a cold and wet starting condition the dried white material 8 directly in the heat-elevating furnace 10 and heated there continuously and dried becomes. The application of the Altasphaltgranulats 2 with the filler 3 via the tube screw 5 directly before the supply of Altasphaltgranulates 2 in the Heißelevator 10th

Im Folgenden wird unter Bezugnahme auf Fig. 5 ein fünftes Ausführungsbeispiel der Erfindung beschrieben. Konstruktiv identische Teile erhalten dieselben Bezugszeichen wie bei den ersten vier Ausführungsbeispielen, auf deren Beschreibung hiermit verwiesen wird. An einer Zuführung eines Altasphaltgranulat-Elevators 16 ist das Zugabe-Band 12 angeordnet. Eine Bandwaage 17 und eine Rutsche 18 verbinden den Altasphaltgranulat-Elevator 16 mit einem Mischer 19. Der wesentliche Unterschied gegenüber den ersten vier Ausführungsbeispielen besteht darin, dass die Erwärmung des Altasphaltgranulates 2 diskontinuierlich erfolgt. Dazu wird der Füller 3 in einer der Asphaltrezeptur entsprechenden Menge über die Rohrschnecke 5 dem Altasphaltgranulat 2 zugegeben. Das mit dem Füller 3 beaufschlagte Altasphaltgranulat 2 wird über das Zugabe-Band 12 und den Altasphaltgranulat-Elevator 16 auf die Bandwaage 17 transportiert, wo dass mit dem Füller 3 beaufschlagte Altasphaltgranulat 2 gewogen wird. Über die Rutsche 18 wird das kalte Altasphaltgranulat 2 in den Mischer 19, in dem sich überhitztes Weißmaterial 8 befindet, transportiert.The following is with reference to Fig. 5 A fifth embodiment of the invention is described. Structurally identical parts receive the same reference numerals as in the first four embodiments, the description of which reference is hereby made. At a feed of a Altasphaltgranulat-Elevators 16, the addition band 12 is arranged. A belt scale 17 and a chute 18 connect the Altasphaltgranulat-Elevator 16 with a mixer 19. The main difference compared to the first four embodiments is that the heating of Altasphaltgranulates 2 is discontinuous. For this purpose, the filler 3 is added in a quantity corresponding to the asphalt formulation via the tube screw 5 to the used asphalt granulate 2. The applied with the filler 3 Altasphaltgranulat 2 is transported via the addition of belt 12 and the Altasphaltgranulat-Elevator 16 on the belt scale 17, where that is weighed with the filler 3 applied Altasphaltgranulat 2. About the chute 18, the cold Altasphaltgranulat 2 is in the mixer 19, in which superheated white material 8 is transported.

Altasphaltgranulat 2 wird durch Abfräsen alter Straßenbeläge gewonnen. In Abhängigkeit des eingesetzten Abfräsverfahrens kann die Größe der Partikeldurchmesser variieren, wobei sich feinkörniges Altasphaltgranulat 2 durch Partikeldurchmesser kleiner 10 mm, insbesondere kleiner 5 mm und insbesondere kleiner 2 mm auszeichnet.Altasphaltgranulat 2 is obtained by milling old road surfaces. Depending on the Abfräsverfahrens used, the size of the particle diameter vary, with fine-grained Altasphaltgranulat 2 by particle diameter less than 10 mm, in particular less than 5 mm and in particular less than 2 mm is characterized.

Der in der Entstaubung produzierte Füller 3 weist Partikel mit Durchmessern zwischen 0,9 mm und 2,0 mm, insbesondere 1,5 mm bis 2,0 mm und wird deshalb als Grobfüller bezeichnet. Grobfüller ist besonders vorteilhaft für die Beaufschlagung des Altasphaltgranulates 2, da der Grobfüller als Produkt der Entstaubung erwärmt vorliegt und damit die Verbindung von Altasphaltgranulat 2 mit dem Grobfüller begünstigt ist. Die Beaufschlagung des Altasphaltgranulates 2 ist auch mit sogenanntem Feinfüller, der sich durch Partikeldurchmesser zwischen 0 mm und 0,9 mm, insbesondere 0,1 mm bis 0,9 mm, insbesondere 0,5 mm bis 0,9 mm, auszeichnet, möglich. Je nach Landesspezifikation kann die Trennung zwischen Feinfüller und Grobfüller anstatt bei 0,9 mm auch bei 0,63 mm liegen.The filler 3 produced in the dedusting has particles with diameters between 0.9 mm and 2.0 mm, in particular 1.5 mm to 2.0 mm and is therefore referred to as coarse filler. Coarse filler is particularly advantageous for the application of the Altasphaltgranulates 2, since the coarse filler is present as a product of dedusting heated and thus the combination of Altasphaltgranulat 2 is favored with the coarse filler. The application of the Altasphaltgranulates 2 is also with so-called fine filler, which is characterized by particle diameter between 0 mm and 0.9 mm, in particular 0.1 mm to 0.9 mm, in particular 0.5 mm to 0.9 mm, possible. Depending on the country specification, the separation between the fine filler and the coarse filler may be 0.63 mm or 0.63 mm instead of 0.9 mm.

Das erfindungsgemäße Verfahren zur Herstellung von Asphalt basiert auf der Zugabe von Altasphaltgranulat 2 zu Weißmaterial 8, kann für viele bekannte Methoden der Erwärmung von Altasphaltgranulat 2 verwendet werden und ist derart gestaltet, dass bereits existierende Verfahren und Anlagen zur Herstellung von Asphalt, die die Zugabe von Altasphaltgranulat 2 nicht berücksichtigen, durch Ergänzen entsprechender Komponenten gemäß dem neuen Verfahren betrieben werden können.The asphalt production process of the present invention is based on the addition of used asphaltic granulate 2 to white material 8, can be used for many known methods of heating asphalted asphalt granules 2, and is designed so that existing asphalt production processes and equipment that facilitate the addition of asphalt Altasphaltgranulat 2 do not take into account, can be operated by adding appropriate components according to the new method.

Claims (14)

  1. Method for the production of asphalt comprising:
    - heating white material (8) and old asphalt granulate (2),
    - mixing the white material (8) with the old asphalt granulate (2) and
    - charging the old asphalt granulate (2) with a filler (3) prior to reaching a station for further processing,
    characterised in that
    - prior to heating the cold old asphalt granulate (2) is charged with a previously weighed amount of filler (3).
  2. Method according to claim 1, characterised in that the white material (8) and the old asphalt granulate (2) is heated in two separate containers (4, 15).
  3. Method according to claim 1, characterised in that the white material (8) and the old asphalt granulate (2) are heated in a common container (4).
  4. Method according to any of claims 1 to 3, characterised in that the old asphalt granulate (2) has a particle diameter of less than 10 mm, in particular less than 5 mm and in particular less than 2 mm.
  5. Method according to any of claims 1 to 4, characterised in that the old asphalt granulate (2) is heated continuously.
  6. Method according to claim 5, characterised in that the continuously heated old asphalt granulate (2) is charged with the filler (3) continuously.
  7. Method according to any of claims 1 to 4, characterised in that the old asphalt granulate (2) is heated discontinuously.
  8. Method according to any of claims 1 to 7, characterised in that dust is used as the filler (3), which by adhering to the old asphalt granulate (2) wets its adhesive surface so that the surface of the old asphalt granulate (2) wet with dust is pourable.
  9. Method according to any of claims 1 to 8, characterised in that the filler (3) is a fine filler with a particle diameter of between 0 mm and 0.9 mm, in particular 0.1 mm to 0.9 mm, in particular 0.5 mm to 0.9 mm or a coarse filler with a particle diameter of between 0.9 mm and 2.0 mm, in particular 1.5 mm to 2.0 mm.
  10. Method according to any of claims 1 to 9, characterised in that the filler (3) is product of dust extraction in a facility (1) for the production of asphalt.
  11. Method according to any of claims 1 to 10, characterised in that the old asphalt granulate (2) is granulated recycled asphalt which is produced by milling old road surfaces.
  12. Method according to any of claims 1 to 11, characterised in that the white material (8) is a rock material for the production of asphalt.
  13. Method according to any of claims 1 to 13, characterised in that the white material (8) and the old asphalt granulate (2) are transported between stations for further processing.
  14. Method according to claim 13, characterised in that stations for further processing include a dryer drum (4), a granulate dryer drum (15), a mixer (19) or a hot elevator (10).
EP09008351.0A 2008-07-23 2009-06-26 Method for producing asphalt Active EP2148004B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09008351T PL2148004T3 (en) 2008-07-23 2009-06-26 Method for producing asphalt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008034247A DE102008034247B3 (en) 2008-07-23 2008-07-23 Process for the production of asphalt

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EP2148004A2 EP2148004A2 (en) 2010-01-27
EP2148004A3 EP2148004A3 (en) 2012-09-26
EP2148004B1 true EP2148004B1 (en) 2017-02-22

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EP09008351.0A Active EP2148004B1 (en) 2008-07-23 2009-06-26 Method for producing asphalt

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EP (1) EP2148004B1 (en)
DE (1) DE102008034247B3 (en)
DK (1) DK2148004T3 (en)
ES (1) ES2625297T3 (en)
PL (1) PL2148004T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2987631B1 (en) * 2012-03-05 2014-10-31 Famaro COATING CENTRAL AND METHOD FOR PRODUCING COILS, IN PARTICULAR FOR ROAD COVERINGS

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867572A (en) * 1987-09-08 1989-09-19 Astec Industries, Inc. Asphalt plant with fixed sleeve mixer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600379A (en) 1985-09-09 1986-07-15 Elliott E J Drum heating and mixing apparatus and method
DE3911425A1 (en) * 1989-04-07 1990-10-11 Deutsche Asphalt Gmbh METHOD AND DEVICE FOR THE ENVIRONMENTALLY FRIENDLY PREPARATION OF ASPHALTIC MATERIAL WITH REUSED OLD ASPHALT
DE4035050C2 (en) 1990-11-05 1998-09-17 Benninghoven Gmbh & Co Kg Process for making asphalt mixes
DE4320664A1 (en) * 1993-06-22 1995-01-05 Gibat Ohl Ingenieurgesellschaf Process for producing asphalt using heated, fresh asphalt and heated, worked-up reclaimed asphalt
DE9313422U1 (en) 1993-09-07 1993-12-02 Benninghoven Gmbh & Co Kg Processing drum for heating rock material and granulated asphalt
US6196710B1 (en) 1999-11-26 2001-03-06 Astec Industries, Inc. Dust distributor for asphalt mixing machine
DE10065174C1 (en) * 2000-12-23 2002-06-13 G & P Ingenieurgesellschaft Fu Modified bitumen production, for use as binder in asphalt mixtures, comprises continuous supply of additives, e.g. waste plastics, to hot liquid bitumen in jet apparatus
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867572A (en) * 1987-09-08 1989-09-19 Astec Industries, Inc. Asphalt plant with fixed sleeve mixer

Also Published As

Publication number Publication date
EP2148004A2 (en) 2010-01-27
EP2148004A3 (en) 2012-09-26
PL2148004T3 (en) 2017-08-31
ES2625297T3 (en) 2017-07-19
DK2148004T3 (en) 2017-06-06
DE102008034247B3 (en) 2009-12-17

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