EP0434172B1 - Procédé et dispositif pour la fabrication de produits enrobés bitumineux - Google Patents

Procédé et dispositif pour la fabrication de produits enrobés bitumineux Download PDF

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Publication number
EP0434172B1
EP0434172B1 EP90203507A EP90203507A EP0434172B1 EP 0434172 B1 EP0434172 B1 EP 0434172B1 EP 90203507 A EP90203507 A EP 90203507A EP 90203507 A EP90203507 A EP 90203507A EP 0434172 B1 EP0434172 B1 EP 0434172B1
Authority
EP
European Patent Office
Prior art keywords
space
slit
moving
pipe
type space
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 - Lifetime
Application number
EP90203507A
Other languages
German (de)
English (en)
Other versions
EP0434172A1 (fr
Inventor
Arie Jan Boon
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.)
Bitumarin BV
Original Assignee
Bitumarin BV
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 Bitumarin BV filed Critical Bitumarin BV
Priority to AT90203507T priority Critical patent/ATE86696T1/de
Publication of EP0434172A1 publication Critical patent/EP0434172A1/fr
Application granted granted Critical
Publication of EP0434172B1 publication Critical patent/EP0434172B1/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
    • E01C19/05—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
    • 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

Definitions

  • the invention relates to a method for producing mixtures containing bitumen, for example for use in road building and hydraulic engineering, in which the material to be treated is fed through a slit-type space between two heated surfaces.
  • a method for producing mixtures containing bitumen for example for use in road building and hydraulic engineering, in which the material to be treated is fed through a slit-type space between two heated surfaces.
  • EP-A- 0,192,300 European Patent Specification EP-A- 0,192,300.
  • the materials to be treated are fed through a slit-type space which is bounded by the interior surface of a cylindrical external jacket and the exterior surface of a rotor rotating concentrically inside the jacket, the common axis of the jacket and the rotor extending horizontally.
  • the rotor is caused to rotate in order to convey the material to be treated through the relatively narrow slit-type gap, ribs or upright studs or pins extending along a helix also preferably being provided on the exterior surface of the rotor.
  • the disadvantage of the known method is, firstly, that it is not possible or very difficult to ensure that the slit-type gap is always completely filled with the material to be treated, and secondly that the conveyance through the slit-type gap proceeds very laboriously, as a result of which the efficiency of the method leaves something to be desired.
  • the object of the invention is to provide an improved method.
  • the material is conveyed by the force of gravity through the slit-type space because the heated surfaces have been arranged vertically and the material is fed into said space at the top of the slit-type space so that said material moves downwards under the influence of the force of gravity and emerges from the slit-type space at the bottom, the material preferably being mixed or stirred together during its movement through the slit-type space.
  • the invention is based on the insight that the width of the slit-type gap can be substantially greater than in the known method because, as a consequence of a combination of certain properties of the material to be treated, the heat transfer through the two heated surfaces is greater than the heat transfer which would be expected on the basis of experience.
  • the material can be fed through said space as a consequence of the force of gravity, said space being vertical, thus ensuring that said space is always completely filled with material.
  • the invention also relates to an apparatus for carrying out the method, comprising two surfaces forming the said surfaces, enclosing an annular gap and situated coaxially inside each other, means for heating said surfaces, a material feed near one end and a material discharge at the other end of the said space, the surfaces, according to the invention, being vertical and the material feed being provided at the top and the material discharge near the bottom of the annular gap, means for mixing together the material moving through the slit-type space being preferably provided in said space.
  • the means for mixing together the material are formed by stud-like elements capable of moving up and down.
  • said stud-like elements can be provided on at least one of the surfaces, said surface being designed to be capable of moving up and down with respect to the other surface.
  • the studs may, however, also be provided on bodies extending through the gap and mounted so as to be capable of moving up and down.
  • At least one pipe is provided which hangs downwardly inside the annular gap which pipe is provided with orifices extending through the wall at different levels.
  • U-shaped section pieces are fixed to the pipe at the locations of the orifices, which pieces cover said orifices with an interspace from the top so that the formed steam at first is collected by said section pieces to be discharged via said orifices in the pipe upwardly through said pipe.
  • the pipe may be mounted for up and down movement so that it can form also a body as mentioned hereinabove having elements for mixing together the material.
  • the surfaces can be designed to be capable of moving as specified in Claims 8 and/or 9.
  • the apparatus comprises a supporting and guiding structure 1 which rests on a floor 2.
  • the external jacket 3 is provided, on the outside, with a sleeve 6 of insulating material. Stud-like elements 3′ are provided on the inside of the external jacket and stud-like elements 4′ are provided on the outside of the internal jacket 4.
  • a filling hopper 7 for the material to be treated is provided at the upper end of the annular gap 5 .
  • a collecting hopper 8 for the treated material which opens into a discharge apparatus 9 for said treated material is present underneath said gap 5.
  • the external jacket 3 is provided with a hydraulic drive mechanism 10 and the internal jacket 4 is provided with a hydraulic drive mechanism 11.
  • the external jacket 3 and the internal jacket 4 can be set in motion translationally by means of said mechanisms 10 and 11, as shown by the double arrows A and B.
  • the mechanisms 10 and 11 may, however, be of a design such that the external jacket 3 and the internal jacket 4 can also be set in motion rotationally.
  • the power for the mechanisms 10 and 11 is delivered by the hydraulic pumping unit 13 via the lines 12.
  • Both the external jacket 3 of double-walled design and the internal jacket 4 of double-walled design are heated by passing a heating medium, for example thermal oil, through them, which medium is delivered by the heating and pumping unit 15 via the lines 14.
  • a heating medium for example thermal oil
  • the drawing furthermore also shows a filling apparatus 16.
  • a number of pipes 17 for the discharge to the outside of steam hang downwardly inside the annular space 5, of which pipes only one is visible in the figure.
  • At specific levels orifices 18 are provided through the wall of the pipe which are covered with an interspace from the top by U-shaped section pieces 19.
  • Said pipes 17 may be mounted for up and down movement so that they can also mix together the material to be treated.
  • the material to be treated is fed via the filling apparatus 16 into the filling hopper 7, from which said material enters the annular space 5. Said material is conveyed through said space 5 under the influence of the force of gravity, said material being dried and heated respectively by means of the heated jackets 3 and 4, and the steam formed thereby being collected by the U-shaped section pieces 19 and being discharged via the orifices 18 through the pipes 17 to the outside where the steam may be permitted to condense.
  • the jackets 3 and 4 may be set in motion translationally and/or rotationally by means of the associated drive mechanisms 10 and 11, the wall friction being compensated for thereby.
  • the material is thoroughly mixed or stirred by the presence of the studs 3′, 4′. After leaving the space 5, the treated material is collected in the collecting hopper 8 and transported out of the latter via the discharge apparatus 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Road Paving Machines (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Saccharide Compounds (AREA)

Claims (12)

  1. Procédé de production de produits enrobés bitumeux, par exemple destinés à être utilisés pour la construction de routes ou l'ingénierie hydraulique, dans lequel le matériau à traiter est introduit à travers un espace de type fente (5), entre deux surfaces chauffées (3,4), caractérisé en ce que le matériau est convoyé par gravité à travers l'espace de type fente (5) parce que les surfaces chauffées (3,4) ont été disposées verticalement et le matériau est introduit dans ledit espace à l'extrémité supérieure (7) de l'espace de type fente, de sorte que ledit matériau se déplace vers le bas sous l'influence de la gravité et ressort de l'espace de type fente par l'extrémité inférieure (8).
  2. Procédé selon la revendication 1, caractérisé en ce que le matériau est mélangé ou agité efficacement pendant son déplacement à travers l'espace de type fente.
  3. Installation destinée à mettre en oeuvre le procédé selon les revendications 1 ou 2, comprenant deux surfaces formant lesdites surfaces (3,4), définissant un espace intermédiaire annulaire (5) et situées coaxialement l'une dans l'autre, un moyen (15) pour chauffer lesdites surfaces, un dispositif d'alimentation (7) en matériau à une extrémité et un dispositif d'enlèvement (8) du matériau à l'autre extrémité dudit espace, caractérisée en ce que les surfaces (3,4) sont verticales et en ce que le dispositif d'alimentation en matériau est disposé à l'extrémité supérieure (7), et le dispositif d'enlèvement de matériau à l'extrémité inférieure (8) de l'espace intermédiaire annulaire (5).
  4. Installation selon la revendication 3, caractérisée en ce que des moyens sont disposés dans l'espace intermédiaire annulaire pour mélanger ou agiter le matériau qui se déplace dans ledit espace intermédiaire.
  5. Installation selon l'une des revendications 3 ou 4, caractérisée en ce qu'au moins un tuyau pour l'évacuation de la vapeur vers l'extérieur est suspendu vers le bas à l'intérieur de l'espace intermédiaire annulaire, ce tuyau étant muni à différents niveaux d'orifices s'étendant à travers la paroi.
  6. Installation selon la revendication 5, caractérisée en ce que des pièces à section en U sont fixées sur le tuyau aux emplacements des orifices, ces pièces recouvrant lesdits orifices avec un espacement à partir du sommet.
  7. Installation selon l'une des revendications 5 ou 6, caractérisée en ce que ledit tuyau est monté mobile en mouvement montant et descendant.
  8. Installation selon l'une des revendications 3 à 7, caractérisée en ce qu'au moins une des surfaces est conçue pour pouvoir se déplacer verticalement en mouvement montant et descendant.
  9. Installation selon l'une des revendications 3 à 8, caractérisée en ce qu'au moins une partie, à la périphérie de l'espace intermédiaire annulaire, d'au moins une des deux surfaces peut effectuer un mouvement de va et vient en rotation autour de l'axe central.
  10. Installation selon l'une des revendications 3 à 9, caractérisée en ce que les moyens pour mélanger le matériau sont constitués par des éléments en forme de pointe pouvant se déplacer en mouvement montant et descendant.
  11. Installation selon la revendication 10, caractérisée en ce que les éléments en forme de pointe sont disposés sur au moins une des surfaces, cette surface étant conçue de façon à pouvoir se déplacer en mouvement montant et descendant par rapport à l'autre surface.
  12. Installation selon la revendication 10, caractérisée en ce que les pointes sont disposées sur des pièces porteuses s'étendant à travers le volume annulaire et pouvant se déplacer en mouvement montant et descendant.
EP90203507A 1989-12-21 1990-12-21 Procédé et dispositif pour la fabrication de produits enrobés bitumineux Expired - Lifetime EP0434172B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90203507T ATE86696T1 (de) 1989-12-21 1990-12-21 Verfahren und vorrichtung zur herstellung von bituminoesem mischgut.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8903141A NL8903141A (nl) 1989-12-21 1989-12-21 Werkwijze en inrichting voor het bereiden van bitumineuze mengsels.
NL8903141 1989-12-21

Publications (2)

Publication Number Publication Date
EP0434172A1 EP0434172A1 (fr) 1991-06-26
EP0434172B1 true EP0434172B1 (fr) 1993-03-10

Family

ID=19855823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90203507A Expired - Lifetime EP0434172B1 (fr) 1989-12-21 1990-12-21 Procédé et dispositif pour la fabrication de produits enrobés bitumineux

Country Status (8)

Country Link
EP (1) EP0434172B1 (fr)
AT (1) ATE86696T1 (fr)
CA (1) CA2033026C (fr)
DE (1) DE69001066T2 (fr)
DK (1) DK0434172T3 (fr)
ES (1) ES2038863T3 (fr)
GR (1) GR3007377T3 (fr)
NL (1) NL8903141A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114602386A (zh) * 2022-04-02 2022-06-10 山推建友机械股份有限公司 一种沥青混合料搅拌系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1454878A1 (de) * 1962-04-13 1969-02-20 Vaterland Werk Friedrich Herfe Kunststoffmischer mit einem kesselartigen Mischbehaelter und einem ueber dem Behaelterboden angeordneten Mischorgan
US3381943A (en) * 1967-01-17 1968-05-07 Trumbull Asphalt Company Method and apparatus for mixing liquid and solid materials
US4406676A (en) * 1980-12-02 1983-09-27 Potter George R Method and apparatus for filtering a stream of gas while drying waste lignocellulosic material
NO151159C (no) * 1982-07-06 1985-02-20 Ameco Hamar As Fremgangsmaate og innretning for energigjenvinning og avgassrensing under fremstilling av asfaltmasse
DE3341006A1 (de) * 1983-11-12 1985-05-30 Alfelder Eisenwerke Carl Heise KG vorm. Otto Wesselmann & Cie., 3220 Alfeld Vorrichtung zur separaten erhitzung von fueller fuer die herstellung von bituminoesem mischgut
NL8500415A (nl) * 1985-02-14 1986-09-01 Bitumarin Nv Menginstallatie, in het bijzonder voor bitumineuze mengsels.

Also Published As

Publication number Publication date
ATE86696T1 (de) 1993-03-15
CA2033026C (fr) 1995-10-03
ES2038863T3 (es) 1993-08-01
NL8903141A (nl) 1991-07-16
DK0434172T3 (da) 1993-04-13
EP0434172A1 (fr) 1991-06-26
DE69001066T2 (de) 1993-06-17
CA2033026A1 (fr) 1991-06-22
DE69001066D1 (de) 1993-04-15
GR3007377T3 (fr) 1993-07-30

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