EP2148004B1 - Procédé pour la production d'asphalte - Google Patents

Procédé pour la production d'asphalte 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
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09008351.0A
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German (de)
English (en)
Other versions
EP2148004A3 (fr
EP2148004A2 (fr
Inventor
Frank Wagner
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.)
Benninghoven GmbH and Co KG
Original Assignee
Benninghoven GmbH and Co KG
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Publication date
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Priority to PL09008351T priority Critical patent/PL2148004T3/pl
Publication of EP2148004A2 publication Critical patent/EP2148004A2/fr
Publication of EP2148004A3 publication Critical patent/EP2148004A3/fr
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Publication of EP2148004B1 publication Critical patent/EP2148004B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1027—Mixing in a rotary receptacle
    • E01C19/1036—Mixing in a rotary receptacle for in-plant recycling or for reprocessing, e.g. adapted to receive and reprocess an addition of salvaged material, adapted to reheat and remix cooled-down batches
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/05—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

Definitions

  • the invention relates to a process for the production of asphalt in which white material and used asphalt granulate are further processed.
  • 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.
  • white material a material for producing asphalt mixtures
  • a method for producing asphalt mixtures 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 H balancedelevator 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.
  • 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 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.
  • 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.
  • 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 Gearerelevator 13 and an additional ring 14 with the drying drum 4 is connected.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the cold Altasphaltgranulat 2 is in the mixer 19, in which superheated white material 8 is transported.
  • Altasphaltgranulat 2 is obtained by milling old road surfaces. Depending on the Abfräsvons 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.
  • 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.
  • the separation between the fine filler and the coarse filler may be 0.63 mm or 0.63 mm instead of 0.9 mm.
  • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Road Paving Machines (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (14)

  1. Procédé de production d'asphalte comprenant :
    - le chauffage d'un matériau blanc (8) et de granulés d'asphalte récupéré (2),
    - le mélange du matériau blanc (8) aux granulés d'asphalte récupéré (2) et
    - l'application d'une charge (3) aux granulés d'asphalte récupéré (2) avant qu'ils atteignent une station de retraitement,
    caractérisé en ce que
    - une quantité préalablement pesée de la charge (3) est ajoutée aux granulés d'asphalte récupéré (2) avant que ceux-ci ne soient chauffés.
  2. Procédé selon la revendication 1, caractérisé en ce que le chauffage du matériau blanc (8) et des granulés d'asphalte récupéré (2) est réalisé dans deux contenants (4, 15) séparés.
  3. Procédé selon la revendication 1, caractérisé en ce que le chauffage du matériau blanc (8) et des granulés d'asphalte récupéré (2) est réalisé dans un contenant (4) commun.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les granulés d'asphalte récupéré (2) présentent un diamètre de particules inférieur à 10 mm, en particulier inférieur à 5 mm et en particulier inférieur à 2 mm.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le chauffage des granulés d'asphalte récupéré (2) est réalisé en continu.
  6. Procédé selon la revendication 5, caractérisé en ce que l'ajout de la charge (3) aux granulés d'asphalte récupéré (2) chauffés en continu est réalisée en continu.
  7. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le chauffage des granulés d'asphalte récupéré (2) est réalisé de manière discontinue.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que de la poussière, qui imprègne la surface collante des granulés d'asphalte récupéré (2) en adhérant à ces derniers, de sorte que la surface imprégnée de poussière des granulés d'asphalte récupéré (2) puisse s'écouler, est utilisée comme charge (3).
  9. Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la charge (3) se présente sous la forme d'une charge fine avec un diamètre de particules compris entre 0 mm et 0,9 mm, en particulier 0,1 mm à 0,9 mm, en particulier 0,5 mm à 0,9 mm ou sous la forme d'une charge grossière avec un diamètre de particules compris entre 0,9 mm et 2,0 mm, en particulier 1,5 mm à 2,0 mm.
  10. Procédé selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la charge (3) est un produit d'un dépoussiérage dans une installation (1) de production d'asphalte.
  11. Procédé selon l'une quelconque des revendications 1 à 10, caractérisé en ce que les granulés d'asphalte récupéré (2) sont de l'asphalte recyclé en granulés, qui sont produits par fraisage d'anciens revêtements routiers.
  12. Procédé selon l'une quelconque des revendications 1 à 11, caractérisé en ce que le matériau blanc (8) est un matériau de roches pour la fabrication d'asphalte.
  13. Procédé selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le matériau blanc (8) et les granulés d'asphalte récupéré (2) sont transportés entre des stations de retraitement.
  14. Procédé selon la revendication 13, caractérisé en ce que des stations de retraitement sont un tambour de séchage (4), un tambour de séchage de granulés (15), un mélangeur (19) ou un élévateur à chaud (10).
EP09008351.0A 2008-07-23 2009-06-26 Procédé pour la production d'asphalte Active EP2148004B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09008351T PL2148004T3 (pl) 2008-07-23 2009-06-26 Sposób produkcji asfaltu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008034247A DE102008034247B3 (de) 2008-07-23 2008-07-23 Verfahren zur Herstellung von Asphalt

Publications (3)

Publication Number Publication Date
EP2148004A2 EP2148004A2 (fr) 2010-01-27
EP2148004A3 EP2148004A3 (fr) 2012-09-26
EP2148004B1 true EP2148004B1 (fr) 2017-02-22

Family

ID=41167475

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Application Number Title Priority Date Filing Date
EP09008351.0A Active EP2148004B1 (fr) 2008-07-23 2009-06-26 Procédé pour la production d'asphalte

Country Status (5)

Country Link
EP (1) EP2148004B1 (fr)
DE (1) DE102008034247B3 (fr)
DK (1) DK2148004T3 (fr)
ES (1) ES2625297T3 (fr)
PL (1) PL2148004T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2987631B1 (fr) * 2012-03-05 2014-10-31 Famaro Centrale d'enrobage et procede de production d'enrobes, en particulier pour revetements routiers

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 (de) * 1989-04-07 1990-10-11 Deutsche Asphalt Gmbh Verfahren und vorrichtung zur umweltschonenden aufbereitung von asphaltmischgut unter wiederverwendung aufgebrochenen alt-asphaltes
DE4035050C2 (de) 1990-11-05 1998-09-17 Benninghoven Gmbh & Co Kg Verfahren zum Herstellen von Asphaltmischungen
DE4320664A1 (de) * 1993-06-22 1995-01-05 Gibat Ohl Ingenieurgesellschaf Verfahren zum Herstellen von Asphalt unter Verwendung von erwärmtem, frischem Asphalt und erwärmtem, aufbereitetem Ausbauasphalt
DE9313422U1 (de) 1993-09-07 1993-12-02 O. Benninghoven GmbH & Co KG, 54486 Mülheim Aufbereitungstrommel zum Erhitzen von Gesteinsmaterial und granuliertem Ausbauasphalt
US6196710B1 (en) * 1999-11-26 2001-03-06 Astec Industries, Inc. Dust distributor for asphalt mixing machine
DE10065174C1 (de) * 2000-12-23 2002-06-13 G & P Ingenieurgesellschaft Fu Verfahren und Vorrichtung zur Herstellung von modifiziertem Bitumen
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
DK2148004T3 (en) 2017-06-06
EP2148004A3 (fr) 2012-09-26
PL2148004T3 (pl) 2017-08-31
DE102008034247B3 (de) 2009-12-17
ES2625297T3 (es) 2017-07-19
EP2148004A2 (fr) 2010-01-27

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