EP1624109B1 - Vorrichtung zur Wiederaufbereitung von Asphalt in Herstellungsanlagen von Bitumenkonglomerat - Google Patents

Vorrichtung zur Wiederaufbereitung von Asphalt in Herstellungsanlagen von Bitumenkonglomerat Download PDF

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Publication number
EP1624109B1
EP1624109B1 EP04425607A EP04425607A EP1624109B1 EP 1624109 B1 EP1624109 B1 EP 1624109B1 EP 04425607 A EP04425607 A EP 04425607A EP 04425607 A EP04425607 A EP 04425607A EP 1624109 B1 EP1624109 B1 EP 1624109B1
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EP
European Patent Office
Prior art keywords
combustion chamber
orifice plate
drying chamber
structures
plant
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
EP04425607A
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English (en)
French (fr)
Other versions
EP1624109A1 (de
Inventor
Giorgio Ghirardelli
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.)
Ghirardelli Plants Srl
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Ghirardelli Plants Srl
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 Ghirardelli Plants Srl filed Critical Ghirardelli Plants Srl
Priority to PL04425607T priority Critical patent/PL1624109T3/pl
Priority to AT04425607T priority patent/ATE429543T1/de
Priority to ES04425607T priority patent/ES2326478T3/es
Priority to DE602004020755T priority patent/DE602004020755D1/de
Priority to EP04425607A priority patent/EP1624109B1/de
Priority to SI200431184T priority patent/SI1624109T1/sl
Publication of EP1624109A1 publication Critical patent/EP1624109A1/de
Application granted granted Critical
Publication of EP1624109B1 publication Critical patent/EP1624109B1/de
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
    • 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 apparatuses for recycling asphalt are largely formed of coaxial cylinders that have in their inside two separated chambers: the drying chamber and, in the bigger cylinder, the combustion chamber.
  • the axis of the coaxial cylinders such as the plant accessorial elements, are angled of some degrees in comparison with the horizontal line to permit to the material flow in working inside the cylinders to move itself in the slope direction.
  • the drying chamber is in rotation to favour the heating and the mixing of the inert materials and of the recycling material introduced from the top in the plant.
  • recycling material is meant the materials coming to the demolition of previous wearing courses, introduced inside the bigger cylinder to an upper opening.
  • the combustion chamber has at its inside a burner placed downstairs of the plant that, in central area, generates a flame so to heat the introduced materials.
  • the heating of the materials till the compound formation downstairs of the plant is necessary to have the fluid vein of the melted inert materials and melted recycled materials.
  • the aggregate of bitumen with the recycled material determines, after to be positioned onto the street in construction and by use of other engines, the new wearing course.
  • the invented apparatus consists of a apparatus for recycling asphalt with a particular orifice plate according to claim 1, separating the combustion chamber to the drying chamber and the other components, able to increase the plant productivity and also to permit the use of bigger quantity of recycled material with consequent decrease of the costs of the actuated new wearing course.
  • the apparatus is so able to use bigger quantity of material to be worked and to have a large adaptability to the necessities of the different asphalting engines.
  • Different plants are known, as for instance the plant described in the patent US-A-4 207 062 .
  • Said plant has an orifice plate, to separate the combustion chamber to the drying chamber, with fixing openings to permit the hot gas crossing from the combustion chamber to the drying chamber.
  • Said openings being fixed onto the orifice plate, do not permit to regulate the oxigen quantity into the combustion chamber and, consequently, to regulate the temperature into the said combustion chamber.
  • the invented apparatus consists of an orifice place 1 according to claim 1 separating the combustion chamber 2 to the drying chamber 3 and placed between these two chambers of any kind of plant 4 to recycle the asphalt with production, at the end, of inert materials and recycled materials mixed for the bituminous conglomerate plants.
  • Said orifice plate 1 equipped, onto the ledging part to the burner flame, of fixing elements 5 able to permit the assembling of one or more affixing structures 6, in truncated cone shape or in shape of nozzle, in shape continuity with the same orifice plate 1 and so to help the slippage of the air flow passing inside.
  • ledges 6A with angle of about 45° in comparison with the longitudinal axis so to direct the flow of the recycled materials and to permit its falling, with the rotation given to other parts connected to the affixing structures 6 and to the orifice plate 1, in parts of the combustion chamber not under the orifice plate 1 and the structure 6.
  • Said structures 6, to be added to the plant on the base of the production necessities, have an opening toward the burner flame that comes to tighten on the base of the number and/or dimension of the elements of the affixing structure 6.
  • the truncate cone structures 6 added to the orifice plate 1 are so to realize a restriction of the air flow placed through the burner and the outlet given to the stack 7.
  • the air flow passes from the drying chamber 3 to the combustion chamber 2 crossing the central opening 8 of the affixing structures 6 and coming to form, in relation to the actuated restriction, a Venturi effect before coming inside the combustion chamber 2.
  • the affixing structures 6 permit to extend the conicity in the requested dimension for bigger quantity of working material also maintaining unchanged the other parts of the plants.
  • the air flow inside the plant is accelerated. So coming air more quickly is increased also the oxygen quantity presents in the combustion chamber and the flame, generated to the burner, reaches higher temperatures. The higher temperature inside the combustion chamber permits an use of bigger quantity of recycled material so like an increasing of the plant productivity.
  • the affixing structure 6, connected to the orifice plate 1 by the fixing elements 5, are so provided in numbers and dimensions in relation to the plant productive capacity wanted, considering the increasing of the air flow on the base of the product quantity wanted and the end of the same plant.
  • the orifice plate 1 and the affixing structure or structures 6 are put in rotation such as they are connected with the drying chamber 3 puts in movement by outside motors.
  • the orifice plate 1 has on its level border, placed previous the truncate cone ledging structure or ogival one, of openings 9 to permit the air passage at high temperatures from the combustion chamber 2 to the drying chamber 3.
  • Said openings 9, realized boring the structure long the vertical wall 10, have an important rule such as, since in combustion chamber there is a considerable increasing of the temperature with relative increasing of the pressure, said openings 9 permit, through the air flow with opposite direction in comparison with the central one that goes to feed the burner flame, to bring air and smokes with high temperature to the drying chamber. Moreover, said air and said smokes, passing through the openings 9 placed onto the metallic structure of the truncate cone orifice plate 1, heat the same structure brings the same to a high temperature.
  • the openings 9 so permit to have the orifice plate 1, the elements 10 and 12 and the affixing structures 6 with high temperature in the particular parts so avoiding the adhesion of the worked recycling material.
  • the hopper 11 is placed in correspondence of the orifice plate 1 so that the ledging part of said orifice plate avoids the direct radiation of the flame onto in inlet material which will determine the material fusion in the inlet hole and so stoppage to the hopper and to the underlying parts.
  • the hopper 11 in this position permits, moreover, to have more time for the drying of the inert materials coming to the chamber 3 and to mix in more homogeneous way the recycled materials with the inert materials.
  • the hopper disposition in this position permits to better eliminate the humidity in these materials when these are melted to the high temperatures create and to the more time of remaining inside the combustion chamber.
  • suitable tongues 14 are present inside the drying chamber 3, i.e. inside the rotating drum put in movement to the motors 13, to present suitable tongues 14 to spread the inert materials which fall down to the cavities 15 placed inside the rotating drum.
  • the drying chamber infact, rotates around the own axis longitudinally bringing to a fixed distributor the material that comes inside of longitudinal cavities 15 placed in parallel long the own inside surface.
  • the contents of said cavities i.e. the inert materials, fall in the low part of the rotating drum.
  • the poured material to the cavities 15 meets the tongue 14 that spreads the inert material forming a thin layer of material inside the cylinder forming the drying chamber 3.
  • the material spread in the falling flow from the upper part of the rotating drum to the tongue 14 better holds the hot smokes inside the drying chamber and in the same time the material placed in rotation and poured is heating.
  • the new emission material parts are often those with bigger humidity containment.
  • the function of the tongues 16 is so that to increase the permanence time and, such as those tongues 16 are in projection from the inside surface of the rotating drum, they bring those parts of new emission material in surface in comparison to the flow material that flows inside of the inner concavities of the cylinders, whereas the material goes on toward the outlet at the end of the plant, from the part of the burner.
  • the invented apparatus is illustrated in a merely indicative and not limiting way in the drawings of sheets 1, 2 and 3.
  • sheet 1 figure 1 is longitudinal section view of a plant to dry inert materials, to recycle asphalt and to produce with other mixing machineries bituminous conglomerates.
  • sheet 2 figure 2 is section view of the invented apparatus.
  • Figure 3 is lateral view of the same apparatus.
  • figure 4 is inside view of the tongues placed into the rotating drum to spread the inert material produced inside the plant.
  • Figure 5 is perspective view of the tongue 14 with cavity 15 carrying the material.
  • the figure 6 is section view showing the tongues 16 angulated in comparison to the material flow coming down to the plant.

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  • 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)

Claims (5)

  1. Vorrichtung zur Wiederaufbereitung von Asphalt in Herstellungsanlagen von Bitumenkonglomerat mit einem Trocknungs (3), einem Verbrennungsraum (2) und eine Trennwand (1), die den genannten Trocknungsraum (3) und den genannten Verbrennungsraum (2) trennt, dadurch gekennzeichnet, dass eine oder mehr zusätzliche kegelstumpfförmigen oder düseförmigen Strukturen (6) gibt, die mit Befestigungselementen (5) in Formstetigkeit zur genannten Trennwand (1) verbunden sind, um eine Luftströmungsverengerung aus dem Trocknungsraum (3) nach dem Verbrennungsraum (2) zu realisieren, so dass sie in bezug auf die verwicklichte Luftströmungsverengerung einen Verturieffekt im Verbrennungsraum (2) bilden, und die Sauerstoffmenge im Verbrennungsraum erhöhen, so dass sie die Temperatur der Flamme des Brenners erhöhen.
  2. Vorrichtung, nach vorigen Anspruch, dadurch gekennzeichnet dass die Strukturen (6) as Quantität und Dimension je nach der gewünschten Leistungsfähigkeit der Anlage vorgesehend sind.
  3. Vorrichtung, nach den Ansprüche 1 oder 2, dadurch gekennzeichnet dass die genannte Trennwand (1) ihre senkrechte Wand Öffnungen (9) hat, um an hohe Temperatur nach dem Trocknungsraum (3) Luft und Rauche zu tragen, so dass man sowohl die Strukturen (6) als die Trennwand erwärmen kann, und dafür die Adhäsion der wiederaufbereiteten Stoff auf die Fläche und in der Nähe der Strukturen (6) und der Trennwand (1) vermeidet wird.
  4. Vorrichtung, nach den vorigen Ansprüche, dadurch gekennzeichnet dass in dem es kleine Flügel (14) gibt, um den Inertstoff auszustreuen, und dieser Stoff fallt in die Höhlungen (15), die innerhalb der drohenden Trommel der Trocknungsraum (3) liegen.
  5. Vorrichtung, nach den vorigen Ansprüche, dadurch gekennzeichnet dass es Flügelkrone (16) gibt, die senkrecht auf die innere Fläche der drohende Trommel sind, und die im Anstellwinkel die Richtung der Stoffströmung entlang liegen, so dass sie die in die Anlage untersteigende Stoffströmung verlangsamen und das Anhalten innerhalb der Verbrennungsraum (2) erhöhen.
EP04425607A 2004-08-03 2004-08-03 Vorrichtung zur Wiederaufbereitung von Asphalt in Herstellungsanlagen von Bitumenkonglomerat Expired - Lifetime EP1624109B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PL04425607T PL1624109T3 (pl) 2004-08-03 2004-08-03 Urządzenie do przetwarzania asfaltu dla maszyn do produkcji bitumicznego konglomeratu
AT04425607T ATE429543T1 (de) 2004-08-03 2004-08-03 Vorrichtung zur wiederaufbereitung von asphalt in herstellungsanlagen von bitumenkonglomerat
ES04425607T ES2326478T3 (es) 2004-08-03 2004-08-03 Aparato para reciclar asfalto para instalaciones de produccion de conglomerado bituminoso.
DE602004020755T DE602004020755D1 (de) 2004-08-03 2004-08-03 Vorrichtung zur Wiederaufbereitung von Asphalt in Herstellungsanlagen von Bitumenkonglomerat
EP04425607A EP1624109B1 (de) 2004-08-03 2004-08-03 Vorrichtung zur Wiederaufbereitung von Asphalt in Herstellungsanlagen von Bitumenkonglomerat
SI200431184T SI1624109T1 (sl) 2004-08-03 2004-08-03 Aparat za recikliranje asfalta v proizvodnih kompleksih bitumenskega konglomerata

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425607A EP1624109B1 (de) 2004-08-03 2004-08-03 Vorrichtung zur Wiederaufbereitung von Asphalt in Herstellungsanlagen von Bitumenkonglomerat

Publications (2)

Publication Number Publication Date
EP1624109A1 EP1624109A1 (de) 2006-02-08
EP1624109B1 true EP1624109B1 (de) 2009-04-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425607A Expired - Lifetime EP1624109B1 (de) 2004-08-03 2004-08-03 Vorrichtung zur Wiederaufbereitung von Asphalt in Herstellungsanlagen von Bitumenkonglomerat

Country Status (6)

Country Link
EP (1) EP1624109B1 (de)
AT (1) ATE429543T1 (de)
DE (1) DE602004020755D1 (de)
ES (1) ES2326478T3 (de)
PL (1) PL1624109T3 (de)
SI (1) SI1624109T1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011004316A1 (en) * 2009-07-09 2011-01-13 S.I.M. - Societa' Italiana Macchine S.P.A. Rotary drier for plants for the production of bituminous macadams with the use of recycled materials
US8993932B2 (en) 2009-07-09 2015-03-31 Ammann Italy S.P.A. Rotary drier for plants for the production of bituminous macadams with the use of recycled materials

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1399864B1 (it) * 2010-05-07 2013-05-09 Visani Cilindro essiccatore per abbattimento fumi incombusti
ITBO20110307A1 (it) * 2011-05-27 2012-11-28 Ghirardelli Stefano Essiccatore per un impianto di realizzazione di conglomerati bituminosi.
ITMI20111352A1 (it) * 2011-07-20 2013-01-21 Bernardi Impianti Internationl S P A Essiccatoio a cilindro rotante per miscele di inerti vergini e materiali di recupero per la preparazione di conglomerati bituminosi
ITMI20111353A1 (it) * 2011-07-20 2013-01-21 Bernardi Impianti Internat S P A Essiccatoio a cilindro rotante per miscele di inerti vergini e materiali di recupero per la preparazione di conglomerati bituminosi
WO2013064851A1 (en) 2011-11-03 2013-05-10 Visani Roberto Drying cylinder for blasting of the unburnt smokes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143972A (en) * 1978-02-21 1979-03-13 Boeing Construction Equipment Company Combustion control system for bituminous drum mixers
US4207062A (en) * 1978-05-26 1980-06-10 Moench Frank F Heating and mixing apparatus for asphaltic pavement
US4919538A (en) * 1989-07-26 1990-04-24 Swisher Jr George W Drum mixer having a combined mixing and heating zone

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011004316A1 (en) * 2009-07-09 2011-01-13 S.I.M. - Societa' Italiana Macchine S.P.A. Rotary drier for plants for the production of bituminous macadams with the use of recycled materials
EP2281944A1 (de) * 2009-07-09 2011-02-09 S.I.M. Societa Italiana Macchine Drehtrockner für Pflanzen zur Herstellung von Bitumen-Macadamen unter Verwendung recycelter Materialien
CN102472021A (zh) * 2009-07-09 2012-05-23 安曼意大利股份公司 用于采用再生材料生产沥青碎石的设备的旋转干燥器
US8993931B2 (en) 2009-07-09 2015-03-31 Ammann Italy S.P.A. Rotary drier for plants for the production of bituminous macadams with the use of recycled materials
US8993932B2 (en) 2009-07-09 2015-03-31 Ammann Italy S.P.A. Rotary drier for plants for the production of bituminous macadams with the use of recycled materials

Also Published As

Publication number Publication date
ATE429543T1 (de) 2009-05-15
PL1624109T3 (pl) 2009-11-30
EP1624109A1 (de) 2006-02-08
DE602004020755D1 (de) 2009-06-04
ES2326478T3 (es) 2009-10-13
SI1624109T1 (sl) 2009-12-31

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