EP0216316A2 - Procédé pour la préparation avec peu d'émission d'un mélange bitumineux avec une forte quantité d'un mélange de récupération en granulés - Google Patents

Procédé pour la préparation avec peu d'émission d'un mélange bitumineux avec une forte quantité d'un mélange de récupération en granulés Download PDF

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Publication number
EP0216316A2
EP0216316A2 EP86112911A EP86112911A EP0216316A2 EP 0216316 A2 EP0216316 A2 EP 0216316A2 EP 86112911 A EP86112911 A EP 86112911A EP 86112911 A EP86112911 A EP 86112911A EP 0216316 A2 EP0216316 A2 EP 0216316A2
Authority
EP
European Patent Office
Prior art keywords
granules
heated
drum dryer
drum
additives
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.)
Granted
Application number
EP86112911A
Other languages
German (de)
English (en)
Other versions
EP0216316A3 (en
EP0216316B1 (fr
Inventor
Reinhold Höhn
Max Dipl.-Ing. Wieland
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.)
WIBAU MASCHINEN GMBH & CO. KG
Original Assignee
Wibau Maschinen & Co KG GmbH
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Filing date
Publication date
Application filed by Wibau Maschinen & Co KG GmbH filed Critical Wibau Maschinen & Co KG GmbH
Priority to AT86112911T priority Critical patent/ATE73511T1/de
Publication of EP0216316A2 publication Critical patent/EP0216316A2/fr
Publication of EP0216316A3 publication Critical patent/EP0216316A3/de
Application granted granted Critical
Publication of EP0216316B1 publication Critical patent/EP0216316B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E01C19/1036—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
    • 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
    • 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
    • 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 method for the continuous, low-emission processing of bituminous mix using a generally high proportion of granules from broken or milled asphalt surfaces of roads or similar traffic areas and additional additives, the two heated components being dispensed from two separate drum dryers and together with additional filler and binder components in a mixer.
  • the surface layer of the roadway is preheated at a large distance from the tearing point until shortly before the processing temperature is reached and is then heated to the final processing temperature directly in front of the tearing point.
  • new ceiling material is fed behind the tear point and before distributing and installing.
  • a further developed method of this type is described by DE-OS 31 47 834.4.
  • This method provides that the loosened demolition material of the cover layer, heated to mixed temperature, loosely moved back and forth across the width of the repair or also rigidly in this area arranged, star-shaped, intermeshing mixing tools, which eject parallel to the formation, are uniformly mixed and added to the mixture in the mixing plane in the area of the mixing tools, to be added binding agent and / or additives in a predetermined grain size, whereby the newly prepared material is mixed by the Screed is recorded and installed in an almost uniform layer thickness.
  • the qualitative residual composition of the demolition should not be considered as absolutely uniform, since the quality degradation of the top layer is generally not uniform across its width.
  • the solution to this problem according to the invention provides that in the mixer the components are mixed intensively with one another and the component with the greatest heat content by releasing an excess of heat to the other parts primarily contributes to the temperature equalization of the components, and that the recycled mix thus prepared is fed directly to further processing or to intermediate storage for batch removal.
  • This procedure allows sampling from the mixer and, based on this, fine control of the composition of the mix.
  • the goods prepared in this way do not necessarily have to be reinstalled at the removal point, but they can also be used, usually in conjunction with a quality grading, for the construction of less polluted roads.
  • the granules are heated in cocurrent with excess air in the flame of the burner, and the exhaust gases from this tumble dryer are used as secondary or tertiary air for the additives and the burner and its counter-fired dryer for the additives, with the control the heat absorption by adjusting the inclination of the drum dryer and thus the residence time of the granules can be determined in this.
  • the additives are heated in countercurrent by a burner in the drum dryer and the exhaust gases from this are fed in countercurrent or in cocurrent to the granule dryer, which in this case does not have a separate burner.
  • FIGS. 1 to 3 show a partial development of the drum dryer.
  • FIG. 1 shows the combination of the proportions of the recycled mixed material 5 in the mixer 8 from the aggregates 1 which supplement the granules 2, and also additional filler 3 and bitumen 4.
  • the aggregates 1 are heated in countercurrent by a drum dryer 6 to such a temperature that the heat content of this proportion of material is generally dominant for the temperature of the recycled material 5 in the mixer 8.
  • the granules 2 'to be heated in a second drum dryer 7 are heated in direct current with a view to reducing the possibility of endangering the granulate or its at least one loose bonding state, and the exhaust gases from the drum dryer 7, the burner, which are to be designated as "fat" 6.1 and its drum dryer 6, which is fired in countercurrent, can be used as secondary or tertiary air for drying and heating the additives 1.
  • FIG. 2 shows an arrangement in which a burner 6.1 for firing it in countercurrent is arranged only in the drum dryer 6.
  • the exhaust gases are the drum dryer 7 for heating the granules 2 in such an amount in cocurrent via line 7.2.2. fed and the loading of the mixer 8 with the individual parts 1 to 4 in the same manner as already indicated by Figure 1.
  • the fittings provided are arranged and designed so that the material is only circulated on the drum base.
  • baffle plate 17 which causes the flue gases to recirculate in order to achieve the best possible combustion while avoiding any significant heat build-up.
  • the granules 2 are then introduced into zone III, ie the actual drying zone 12, the narrow-flow trickle internals 18 produce a relatively dense trickle curtain, limited only by the discharge characteristic of the internals. From a purely physical point of view, the dropping takes place always in the form of a parabola, whereby not only the material characteristics are decisive for the design of these curves, but also the peripheral speed of the internals.
  • the trickle curtain initiates the activation of the binder at maximum smoke gas temperature and speed, thus creating optimal conditions for heat transfer.
  • the granules are then transferred to the zone IV, which is to be regarded as Abtheses Society and ubschaufeln by arranged at a distance 7.4 from the drum wall 7.3, relatively large, surface-forming H 19 is supplied to the pellets 2 further heat while maintaining the by the distance 7.4 of Lifting vanes 19 for the column wall 7.3 formed, conducts partial flows of the granulate 2 directly along the inner periphery of the drum wall 7.3 and in the process cleans them permanently.
  • the final heating is set at a temperature of about 20 ° C below the temperature of the exiting exhaust gases, wherein the Endbeschaufelung.21 is first formed so that the granules 2 are not jammed, but rommelwandung substantially only of the T 7.3 is deflected and furthermore a delayed discharge in the direction of flow takes place across the width of the final blading by partially chamfering the channels.
  • the burner 7.1 can be arranged in the drum dryer for countercurrent firing, in particular when the granulate content is high. Since the initial situation can be different, it is advisable to be able to operate the system variably to a large extent.
  • this can be done additively using a scale and a separate binder metering device or, in continuous operation, by belt scales and flow meter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Processing Of Solid Wastes (AREA)
  • Disintegrating Or Milling (AREA)
EP86112911A 1985-09-21 1986-09-18 Procédé pour la préparation avec peu d'émission d'un mélange bitumineux avec une forte quantité d'un mélange de récupération en granulés Expired - Lifetime EP0216316B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86112911T ATE73511T1 (de) 1985-09-21 1986-09-18 Verfahren zur emissionsarmen aufbereitung eines bituminoesen mischgutes mit hohem anteil an granulat als recycling-mischgut.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3533728 1985-09-21
DE3533728 1985-09-21
DE19853540978 DE3540978A1 (de) 1985-09-21 1985-11-14 Verfahren zur emissionsarmen aufbereitung eines bituminoesen mischgutes mit hohem asphaltgranulatanteil als recycling-mischgut
DE3540978 1985-11-14

Publications (3)

Publication Number Publication Date
EP0216316A2 true EP0216316A2 (fr) 1987-04-01
EP0216316A3 EP0216316A3 (en) 1987-11-11
EP0216316B1 EP0216316B1 (fr) 1992-03-11

Family

ID=25836223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112911A Expired - Lifetime EP0216316B1 (fr) 1985-09-21 1986-09-18 Procédé pour la préparation avec peu d'émission d'un mélange bitumineux avec une forte quantité d'un mélange de récupération en granulés

Country Status (3)

Country Link
EP (1) EP0216316B1 (fr)
AT (1) ATE73511T1 (fr)
DE (2) DE3540978A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2657097A1 (fr) * 1990-01-18 1991-07-19 Ermont Cm Dispositif de preparation de produits enrobes bitumineux comportant un tambour a courants paralleles et un tambour a contre-courant et procede correspondant.
EP1022391A1 (fr) * 1999-01-11 2000-07-26 Heijmans Infrastructuur & Milieu B.V. Procédé pour le recyclage de goudron et/ou de matériau contenant du bitume, comprenant une conversion thermique en combinaison avec la production d'asphalte(04.06.99)
WO2008019648A1 (fr) 2006-08-17 2008-02-21 Sasol Wax Gmbh Procédé de réutilisation de matériaux bitumineux de démolition des routes et production d'enrobés bitumineux
WO2011047705A1 (fr) 2009-10-23 2011-04-28 Loesche Gmbh Procédé et installation de production d'enrobé asphaltique
FR2987631A1 (fr) * 2012-03-05 2013-09-06 Famaro Centrale d'enrobage et procede de production d'enrobes, en particulier pour revetements routiers
EP3243957B1 (fr) 2016-05-10 2018-12-12 Ermont Installation et procédé d'enrobage de granulats

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723103A1 (de) * 1987-06-30 1989-01-12 Teerbau Gmbh Strassenbau Asphaltmischanlage zur partiellen wiederverwendung von asphaltgranulat
EP0499664A1 (fr) * 1991-02-20 1992-08-26 WIBAU Maschinen GmbH & Co. KG Procédé pour le traitement par voie chimico-physique de gaz d'échappement d'installations de mélange d'asphalte

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1300069B (de) * 1966-08-31 1969-07-24 Wibau Gmbh Hubrinneneinbauten in Trommeltrocknern zum Trocknen von Mischgut fuer den Strassenbau
US4189238A (en) * 1975-08-11 1980-02-19 Mendenhall Robert Lamar Recycled asphalt-aggregate process and apparatus
US4300837A (en) * 1980-03-07 1981-11-17 Creusot-Loire Device for the preparation of coated bituminous products for road surfacing
US4332478A (en) * 1979-05-16 1982-06-01 Barber-Greene Company Method and apparatus for reducing smoke emissions in an asphalt drum mixer
US4387996A (en) * 1980-04-14 1983-06-14 Mendenhall Robert Lamar Batch method of recycling asphaltic concrete
US4477250A (en) * 1983-03-07 1984-10-16 Mechtron International Corporation Asphalt recycle plant and method
DE3333673A1 (de) * 1983-09-17 1985-04-04 Teerbau Gesellschaft für Straßenbau mbH, 4300 Essen Verfahren zur herstellung von bituminoesem mischgut unter mitverwendung von altasphalt
EP0183079A1 (fr) * 1984-11-13 1986-06-04 Deutsche Asphalt GmbH Procédé et dispositif pour la préparation d'un mélange asphaltique avec asphalte récupéré usé

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333671A1 (de) * 1983-09-17 1985-04-18 System Elektronik Ihlemann GmbH, 3300 Braunschweig Verfahren und vorrichtung zur ermittlung der drehzahl-drehmoment-kennlinie eines motors eines kraftfahrzeuges

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1300069B (de) * 1966-08-31 1969-07-24 Wibau Gmbh Hubrinneneinbauten in Trommeltrocknern zum Trocknen von Mischgut fuer den Strassenbau
US4189238A (en) * 1975-08-11 1980-02-19 Mendenhall Robert Lamar Recycled asphalt-aggregate process and apparatus
US4332478A (en) * 1979-05-16 1982-06-01 Barber-Greene Company Method and apparatus for reducing smoke emissions in an asphalt drum mixer
US4300837A (en) * 1980-03-07 1981-11-17 Creusot-Loire Device for the preparation of coated bituminous products for road surfacing
US4387996A (en) * 1980-04-14 1983-06-14 Mendenhall Robert Lamar Batch method of recycling asphaltic concrete
US4477250A (en) * 1983-03-07 1984-10-16 Mechtron International Corporation Asphalt recycle plant and method
DE3333673A1 (de) * 1983-09-17 1985-04-04 Teerbau Gesellschaft für Straßenbau mbH, 4300 Essen Verfahren zur herstellung von bituminoesem mischgut unter mitverwendung von altasphalt
EP0183079A1 (fr) * 1984-11-13 1986-06-04 Deutsche Asphalt GmbH Procédé et dispositif pour la préparation d'un mélange asphaltique avec asphalte récupéré usé

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2657097A1 (fr) * 1990-01-18 1991-07-19 Ermont Cm Dispositif de preparation de produits enrobes bitumineux comportant un tambour a courants paralleles et un tambour a contre-courant et procede correspondant.
EP0437990A1 (fr) * 1990-01-18 1991-07-24 Ermont. C.M. Dispositif de préparation de produits enrobés bitumineux comportant un tambour à courants parallèles et un tambour à contre-courant et procédé correspondant
US5178456A (en) * 1990-01-18 1993-01-12 Ermont C. M. Device for the preparation of bituminous coated products comprising a drum with parallel streams and a countercurrent drum and corresponding process
EP1022391A1 (fr) * 1999-01-11 2000-07-26 Heijmans Infrastructuur & Milieu B.V. Procédé pour le recyclage de goudron et/ou de matériau contenant du bitume, comprenant une conversion thermique en combinaison avec la production d'asphalte(04.06.99)
WO2008019648A1 (fr) 2006-08-17 2008-02-21 Sasol Wax Gmbh Procédé de réutilisation de matériaux bitumineux de démolition des routes et production d'enrobés bitumineux
WO2011047705A1 (fr) 2009-10-23 2011-04-28 Loesche Gmbh Procédé et installation de production d'enrobé asphaltique
FR2987631A1 (fr) * 2012-03-05 2013-09-06 Famaro Centrale d'enrobage et procede de production d'enrobes, en particulier pour revetements routiers
EP3243957B1 (fr) 2016-05-10 2018-12-12 Ermont Installation et procédé d'enrobage de granulats
EP3243957B2 (fr) † 2016-05-10 2021-12-15 Ermont Installation et procédé d'enrobage de granulats

Also Published As

Publication number Publication date
EP0216316A3 (en) 1987-11-11
DE3684210D1 (de) 1992-04-16
ATE73511T1 (de) 1992-03-15
EP0216316B1 (fr) 1992-03-11
DE3540978A1 (de) 1987-03-26

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