EP0362199B1 - Herstellungsvorrichtung für asphaltbeton - Google Patents

Herstellungsvorrichtung für asphaltbeton Download PDF

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Publication number
EP0362199B1
EP0362199B1 EP19870906317 EP87906317A EP0362199B1 EP 0362199 B1 EP0362199 B1 EP 0362199B1 EP 19870906317 EP19870906317 EP 19870906317 EP 87906317 A EP87906317 A EP 87906317A EP 0362199 B1 EP0362199 B1 EP 0362199B1
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EP
European Patent Office
Prior art keywords
chamber
mixing
drum
advancing
asphaltic concrete
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Expired
Application number
EP19870906317
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English (en)
French (fr)
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EP0362199A1 (de
EP0362199B2 (de
Inventor
Antonio Cipriani
Marino Torsello
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Marini SpA
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Marini SpA
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Priority claimed from IT8703437A external-priority patent/IT1207666B/it
Priority claimed from IT8783384A external-priority patent/IT1214190B/it
Priority claimed from IT6040187U external-priority patent/IT218565Z2/it
Priority claimed from IT6042887U external-priority patent/IT213525Z2/it
Application filed by Marini SpA filed Critical Marini SpA
Publication of EP0362199A1 publication Critical patent/EP0362199A1/de
Publication of EP0362199B1 publication Critical patent/EP0362199B1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1027—Mixing in a rotary receptacle
    • E01C19/1031—Mixing in a rotary receptacle the mixture being discharged continuously
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—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
    • 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

Definitions

  • the subject of the present invention is an apparatus for drying and mixing inert material and/or recyclable asphaltic product (R.A.P.), with bituminous and non bituminous materials in an elongated rotatable drum means, in which inert material composition is introduced at a first end and recovered at the opposite second end, and having a burner nozzle or the combustion chamber or its closed extension, extending into the drum and directing the hot gases countercurrent to the advancing materials into the drum means.
  • R.A.P. inert material and/or recyclable asphaltic product
  • the invention has a convenient although not exclusive application for the production of asphaltic concrete as a ready bituminous mix, in particular for road paving.
  • gravel not impregnated with bituminous substances is charged upstream (at the first end of the drum) and where the mouth of a burner is arranged downstream immediately inside the drum, the flame of which is directed axially in countercurrent in respect to the said inert material advancing from upstream drum end, and where recyclable asphaltic product (R.A.P.) is charged in a position immediately upstream in respect to said burner head or nozzle so that a new dried mix of reutilisable inert product is discharged downstream.
  • R.A.P. recyclable asphaltic product
  • the product can be discharged dried (without further addition of bituminous asphalt substances and other filler impregnating binders) to be then utilized at the desired moment, after a successive impregnation with impregnating bituminous substances and fillers, by a second mixing drum apparatus allowing to addition the "binders" to the respective inert dried product so as to obtain the ready- mixed bituminous mix of asphaltic concrete ready to be utilized.
  • US-A-2421345 discloses a single drum mixer, but for virgin material only, wherein the burner is placed downstream, outside (not inside) the cylinder.
  • This plant discloses in fact an asphaltic concrete apparatus for the production of ready-mix asphaltic concrete, using a rotatable mixing drum having a flow of combustion gas in countercurrent by a downstream placed burner, delivering the combustion gases inside the respective rotatable mixing-drum.
  • US-A-4427376 ETNYRE regards an apparatus for heating aggregate, recycled asphalt and the like, in which two machines are utilized: - a first drier drum (15) with a first one hopper (45) for particulate material (virgin or R.A.P.-R.A.M. or premixed 11) at one of its extremities wherein the first binding material is added (66) and a second hoperat the other extremity (70) for adding further binding material (e.g.filler) over the combustion chamber;
  • the plant needs a previous further step to premix in desired proportions (the respective R.A.M.-R.A.P. with virgin material), by a premixer plant in order to reconstitute the granulometry of the particulate material to be utilized.
  • the flame is delivered where the binding material is delivered (Eg. US-A-2421345) or before (US-A-4427376).
  • the problem to be solved becomes more complex if after mixing and drying inert virgin material with R.A.P. it is intended to impregnate and mix the dried material with the bituminous/filler binder substances which, on the other hand, needs to treat a nearly constant flow of material even if the ratio of inert virgin ma- terial/R.A.P. varies, the other conditions naturally remaining unvaried.
  • the scope of this invention is to eliminate said inconveniences and solve the respective problem which they raise.
  • Main scope being to allow the plant, in a single rotating drum complex, to burn the evaporated hot gases to prevent blue gas emission (pollution) and to avoid firing of the added binding material.
  • Further scope being to allow exact and continuous proportioning of the Virgin material with R.A.P.-R.A.M. and binders.
  • this invention solves the problem by using an asphaltic concrete apparatus for the production of ready-mix asphaltic concrete, using rotatable mixing drum means having a flow of combustion gas in countercurrent by a downstream placed burner means means for advancing, drying, impregnating and mixing the material, with bituminous and filler substances (binders); of the type comprising the division of the rotatable mixing drum means into a first chamber (R-V) for supplying, advancing and drying the inert virgin material and eventually mixing it with the recyclable asphaltic product (R.A.P.) and into a second chamber (W) for further advancing, impregnating and mixing the dried material with bituminous and filler substances (binders), characterized by the fact that:
  • the rotatable drum apparatus is divided in two coaxial portions "R"+"$", by an intermediate anular R.A.P. charging hopper, the second portion being divided in two sections "V"+"W" ("V" being the said intermediate chamber in said first chamber "R"), the second section "W' being said impregnating and mixing second chamber, wherein:
  • the rotatable drum means is divided in two rotatable drum parts although realizing the axial continuity of the chamber for the progress and mixing of the materials, the first part comprising a first portion "R” which substantially interests the drying of the virgin material and the second part comprising a second portion "S" divided in two sections "V"+”W", being:
  • the burner is elongated axially inside and across the second section "W", the respective combustion happening or being extended in the first section intermediate chamber "V".
  • the apparatuses comprises less preferably a single rotatable drum (1) more preferably a pair of rotatable drums (1,1') rotated by crown pinion means (109/110,17,17') supported on roller means (106/104-107/105,18,18') with an inlet mouth for inert virgin material hopper supply, placed upstream at the first end of the rotatable drum means (113,2) which pours the inert virgin material into a feeding area having helicoidal feeding blades (114,3) and then allow the same material to flue into a drying area having lifting finnings in the form of cups for a continuous fall of material (115,4) which constitute the first portion "R".
  • finning-cups 115a, 6,7 being provided downstream in a further portion "S", in order to allow the advancing material to be lifted and advanced; said finning-cups being of the type which prevent the formation of a veil of inert particles from falling through the hot gases of combustion as the drum is rotated, to obtain an undisturbed combustion, leaving a free central axial space which has a more ample diameter in respect to the first portion "R", realizing a first section 'V" where R.A.P. can be added (19).
  • the first portion "R” and said intermediate chamber “V” realizing said first chamber in the rotatable drum means where the inert material will be dried and eventually mixed with R.A.P.
  • R.A.P. (12) The possibility of inserting the material to be recycled R.A.P. (12) can be realized at the end of the first portion "R" (115a,19) by an intermediate annular stationary introducing hopper (126) extending anularly in an external ring form (127,5), by means of helicoidal introducing channels realized by external finnings fixed to the rotating drum, closed externally by a fixed openable cylindrical carter (129) in order to convey the respective R.A.P. inside the rotatable drum across a plurality of circumferential openings (130) realized in the first rotatable drum (1).
  • a second coaxial independent rotatable drum (1') with independent rotating means (17'), covering a second section "S" can be realized (Fig.1C).
  • This section includes said intermediate chamber “V” and said second chamber “W”.
  • a second section (second chamber) "W” is provided in order to impregnate and mix the dried product coming from the previous section "V” with binding bituminous and filler substances by means of a suitable lower delivery nozzle means (123-124, 13) is arranged behind the burner's flame delivery mouth of the respective burner means (117-116-119,14, 14-15-16) so as to avoid danger of combustion.
  • the bound asphaltic concrete will be discharged downstream at the second end of the rotatable drum means, through a ring head (125,11) with the discharge outlet of the ready-mix composition, positioned downwards (8), whereas the combustion gases will be discharged upstream at the first end of the rotatable drum means by a flue (111-112, 9-10).
  • the respective finning means Downstream of the advanced burner head (14) and in any case, behind the respective flame, the respective finning means will conveniently be radial (7) so as to obtain the final mixing of the various materials without collision with the respective burner duct means (116-119,14,16).
  • the two chambers "R+V” and “W”, are divided by a diaphragm (118) with adjustable door openings (120) allowing the material to pass with adjustable rate from the first one to the second one by the falling-rolling advancing movement by cooperating upstream helicoidal feeders (121).
  • both the said first portion "R” and the said first section 'V" of the said first chamber present finning means (115,115a,4-6) which are substantially bent with a progressive tendency to parallelism with the inside cylindrical surface of the chamber (4,6), those of the said downstream first section 'V" being more closed than those of the first portion "R".
  • the novel feature is the inclusion of the "V" intermediate chamber in the first chamber or first section in the second portion, placed between the "first portion" of the premixing and drying chamber "R” and the mixing chamber (second chamber or second section)"W".

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Drying Of Solid Materials (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Claims (11)

1. Asphaltbetonvorrichtung zur Herstellung von Fertig-Asphaltbeton, mit drehbarer Mischtrommel mit Gegenströmung des Verbrennungsgases durch einen stromabwärts postierten Brenner sowie Vorrichtungen zum Fortbewegen, Trocknen, Tränken und Mischen des Materials mit bituminösen und Füllstoffen (Bindemitteln) (123-124-13); mit Unterteilung der drehbaren Mischtrommel in eine erste Kammer (R-V) zur Anlieferung, Voranbewegung und Trocknung des trägen unvorbereiteten Materials und seiner abschliessenden Mischung mit dem wiederverwertbaren Asphaltprodukt (R.A.P.) sowie eine zweite Kammer (W) zum Weitertransport, Tränken und Mischen des Materials mit bituminösen und Füllstoffen (Bindemitteln), gekennzeichnet dadurch, daß:
- die betreffende Düse (116-16) des besagten Brenners (117-14) sich innerhalb der genannten ersten Kammer (R-V) befindet und in eine Zwischenkammer 'V" ausstößt, die zwischen einem ersten Teil "R" der besagten ersten Kammer (R-V) und der genannten zweiten Kammer "W" liegt, wobei die zweite Kammer "W" eine Mischkammer ist und die besagte Zwischenkammer "V"
- eine Membran (118-120) umfaßt, die die Flamme in axialer Richtung durchläßt und das Material in die genannte zweite Kammer "W" passieren läßt, durch fallend-rollende Fortbewegung in Zusammenarbeit mit schraubenförmigen Zufuhreinrichtungen (121).
- die betreffenden Bindemittel (13) in die genannte zweite Kammer "W" eingeführt werden, unmittelbar hinter der besagten Düse (116-16).
2. Asphaltbetonvorrichtung wie nach Anspruch
1., gekennzeichnet dadurch, daß die genannte Membran (118) eine regulierbare Öffnung (120) aufweist, um das korpuskulare getrocknete Material aus der Zwischenkammer "V" in die zweite Kammer "W" passieren zu lassen:
- durch seine fallend-rollende, voranführende Bewegung und
- mit regulierbarer Geschwindigkeit.
3. Asphaltbetonvorrichtung wie nach Anspruch
1., gekennzeichnet dadurch, daß die besagten Blattrippen-Hebe-Zufuhreinrichtungen in der genannten Zwischenkammer "V" zur Fortbewegung des korpuskularen getrockneten Materials alternativ oder kombiniert umfassen:
- schraubenförmige Zufuhreinrichtungen (121 ) und
- quergerichtete Hebepfannen (6).
4. Asphaltbetonvorrichtung wie nach Anspruch 1., gekennzeichnet dadurch, daß die drehbare Trommelvorrichtung (1) in zwei koaxiale Abschnitte "R" + "S" aufgeteilt ist, und zwar mittels eines dazwischenliegenden ringförmigen Fülltrichters (126-127-128-129-130, 5, 19), wobei der zweite Abschnitt "S" in zwei Unterabschnitte "V" und "W" unterteilt ist, dessen erster, "V", besagte Zwischenkammer aus Anspruch 1 ist und dessen zweiter, "W", die genannte zweite Kammer "W" zum Tränken und Mischen aus Anspruch 1 ist. Dabei
- ist der erste Abschnitt "R" mit Blattrippen (114-115, 3-4) ausgestattet, um das träge unvorbereitete Material, das am vorderen Ende (113,2) der drehbaren Trommelvorrichtung (1) ausgegeben wird, im Innern zu heben, fortzubewegen und zu mischen, und
- der erste Unterabschnitt "V" des zweiten Abschnitts "S" ist mit Blattrippen (115a, 6) ausgestattet, um das träge unvorbereitete Material, das vom ersten Abschnitt "R" anlangt, im Innern zu heben, fortzubewegen und mit wiederverwertbarem Asphaltprodukt (R.A.P. 12) zu mischen, das von dem besagten dazwischenliegenden ringförmigen Fülltrichter (126-127-128-129-130, 5, 19) angeliefert wird.
5. Asphaltbetonvorrichtung wie nach Anspruch 1., gekennzeichnet dadurch, daß die drehbare Trommelvorrichtung in zwei koaxiale drehbare Trommelteile (1, 1') aufgeteilt ist, obwohl sie die Kontinuität der Kammer für die Weiterführung und Mischung der Materialien gewährleistet, wobei das erste Teil (1) einen ersten Abschnitt "R" umfaßt, in dem im wesentlichen das Trocknen des unvorbereiteten Materials vonstatten geht, und das zweite Teil (1') einen zweiten Abschnitt "S" umfaßt, der in zwei Unterabschnitte "V" und "W" unterteilt ist, wobei:
- in dem ersten Unterabschnitt "V" das R.A.P. (12) eingeführt, erhitzt und mit dem trägen unvorbereiteten Material (113, 2) gemischt wird, und
- in dem zweiten Unterabschnitt "W" das von dem ersten Unterabschnitt "V" anlangende getrocknete Material getränkt und mit bindenden Stoffen, z. B. bituminösen und Füllstoffen (Bindemitteln) (123- 124-13), gemischt wird, und
- jede Trommel (1,1') mit einer Rotiervorrichtung (17, 17') ausgestattet ist, die verschiedene Geschwindigkeiten zuläßt.
6. Asphaltbetonvorrichtung wie nach Anspruch 1., gekennzeichnet dadurch, daß die genannte erste Kammer "R" folgendes umfaßt:
- einen ersten Satz von Zuführblättern in Schraubenform (114, 3) zur Weiterführung des korpuskularen unvorbereiteten Materials (2) an dem einen Ende der Trommel (1);
- einen zweiten Satz von Hebe- und Förder-Blattrippen in Form halboffener Pfannen (115,4), geeignet zum kontinuierlichen Voranbewegen von korpuskularem Material.
7. Asphaltbetonvorrichtung wie nach Anspruch 1., gekennzeichnet dadurch, daß stromabwärts von dem vorgesetzten Brennerkopf (14), hinter der betreffenden Flamme, in der genannten zweiten Kammer "W", die betreffenden Blattrippen zur Fortbewegung und zum Mischen des Materials radial sind (7).
8. Asphaltbetonvorrichtung wie nach Anspruch 1., gekennzeichnet dadurch, daß die zylindrische Innenwand der besagten ersten Kammer ("R"+"V") Blattrippen-Hebevorrichtungen (115-115a, 4-6) umfaßt, die im wesentlichen gebogen sind, mit fortschreitender Tendenz zur Parallelität mit der zylindrischen Innenoberfläche der rotierenden Kammer.
9. Asphaltbetonvorrichtung wie nach Anspruch 1., gekennzeichnet dadurch, daß die zylindrische Innenwand der besagten ersten Kammer Blattrippen-Hebevorrichtungen (115-115a, 4-6) umfaßt, die im wesentlichen gebogen sind, mit fortschreitender Tendenz zur Parallelität mit der zylindrischen Innenoberfläche der rotierenden Kammer, wobei besagte Blattrippen-Hebevorrichtungen (115-115a, 4-6) in zwei Abschnitte unterteilt sind, von denen der stromabwärts gelegene Abschnitt (115a, 6) näher an der zylindrischen Innenoberfläche liegt als der stromaufwärts gelegene Abschnitt (115, 4).
EP87906317A 1987-04-16 1987-09-12 Herstellungsvorrichtung für asphaltbeton Expired - Lifetime EP0362199B2 (de)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
IT343787 1987-04-16
IT8703437A IT1207666B (it) 1987-04-16 1987-04-16 Cilindro essicatore-mescolatore rotante per la produzione di conglomerati bituminosi
IT8338487 1987-06-09
IT8783384A IT1214190B (it) 1987-06-09 1987-06-09 Di materiali di recupero. impianto di essiccazione e mescolazione di materiali bituminosi e non, con riciclaggio
IT6040187U IT218565Z2 (it) 1987-07-03 1987-07-03 Impianto di essicazione e mescolazione di materiali bituminosi e non, con passaggio dei gas in controcorrente.
IT6040187 1987-07-03
IT6042887 1987-09-03
IT6042887U IT213525Z2 (it) 1987-09-03 1987-09-03 Impianto di essiccazione e mescolazione di materiali bituminosi e non con passaggio dei gas in controcorrente in grado di operare anche per riciclaggio.
PCT/IT1987/000081 WO1988008052A1 (en) 1987-04-16 1987-09-12 Asphaltic concrete production apparatus

Publications (3)

Publication Number Publication Date
EP0362199A1 EP0362199A1 (de) 1990-04-11
EP0362199B1 true EP0362199B1 (de) 1992-04-01
EP0362199B2 EP0362199B2 (de) 1995-03-08

Family

ID=27452670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87906317A Expired - Lifetime EP0362199B2 (de) 1987-04-16 1987-09-12 Herstellungsvorrichtung für asphaltbeton

Country Status (5)

Country Link
EP (1) EP0362199B2 (de)
AU (1) AU8032187A (de)
DE (1) DE3778035D1 (de)
ES (1) ES2010257A6 (de)
WO (1) WO1988008052A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252515A (zh) * 2011-04-29 2011-11-23 兰州兰石成套设备有限责任公司 兰炭烘干机的扬料装置
US11359339B2 (en) 2016-12-07 2022-06-14 Marini S.P.A. Plant for the production and distribution of bituminous conglomerates

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FR2632670A1 (fr) * 1988-06-13 1989-12-15 Ermont Cm Dispositif de preparation de produits enrobes bitumineux a malaxeur fixe
JPH01315502A (ja) * 1988-06-14 1989-12-20 Nikko Co Ltd アスファルトプラントのドライヤ
FR2645556B1 (fr) * 1989-04-05 1991-07-19 Ermont Cm Tambour secheur et enrobeur pour la preparation de produits enrobes bitumineux comportant un bruleur perfectionne
FR2646728A1 (fr) * 1989-05-05 1990-11-09 Ermont Cm Dispositif de regulation du debit de recyclage de matieres pulverulentes dans une installation telle qu'un poste d'enrobage
WO2016078755A1 (en) * 2014-11-18 2016-05-26 Marini S.P.A. Dryer for a plant for the production and distribution of bituminous conglomerates
ITUB20156088A1 (it) * 2015-12-02 2017-06-02 Marco Chignola Dispositivo per l'essiccazione e il surriscaldamento di materiale inerte
ITUB20156836A1 (it) 2015-12-11 2017-06-11 Marini Spa Tamburo per essiccatore e metodo di costruzione di tamburo per essiccatore per conglomerati
CN105951561B (zh) * 2016-06-30 2019-04-02 湖南三一路面机械有限公司 回收沥青加热装置

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US4427376A (en) * 1982-07-16 1984-01-24 Wylie Manufacturing Company Apparatus for heating aggregate, recycled asphalt and the like
CA1231707A (en) * 1982-12-02 1988-01-19 Wilhelm P.H. Voors Method and plant for recycling asphalt using hot aggregate confluence
DE8419157U1 (de) * 1984-06-26 1984-09-27 ATS Asphalttechnik und Straßenbaugeräte GmbH & Co KG, 6236 Eschborn Vorrichtung zur aufbereitung und herstellung von asphaltmischgut unter wiederverwendung alten asphaltmaterials

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252515A (zh) * 2011-04-29 2011-11-23 兰州兰石成套设备有限责任公司 兰炭烘干机的扬料装置
CN102252515B (zh) * 2011-04-29 2013-07-10 兰州兰石成套设备有限责任公司 兰炭烘干机的扬料装置
US11359339B2 (en) 2016-12-07 2022-06-14 Marini S.P.A. Plant for the production and distribution of bituminous conglomerates
US11427973B2 (en) 2016-12-07 2022-08-30 Marini S.P.A. Plant for the production and distribution of bituminous conglomerates

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ES2010257A6 (es) 1989-11-01
EP0362199A1 (de) 1990-04-11
DE3778035D1 (en) 1992-05-07
AU8032187A (en) 1988-11-04
WO1988008052A1 (en) 1988-10-20
EP0362199B2 (de) 1995-03-08

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