EP0119328A2 - Trockner-Mischer für die Bereitung von bituminösem Mischgut, insbesondere für den Gebrauch von wiedergewonnenem Material - Google Patents

Trockner-Mischer für die Bereitung von bituminösem Mischgut, insbesondere für den Gebrauch von wiedergewonnenem Material Download PDF

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Publication number
EP0119328A2
EP0119328A2 EP83201481A EP83201481A EP0119328A2 EP 0119328 A2 EP0119328 A2 EP 0119328A2 EP 83201481 A EP83201481 A EP 83201481A EP 83201481 A EP83201481 A EP 83201481A EP 0119328 A2 EP0119328 A2 EP 0119328A2
Authority
EP
European Patent Office
Prior art keywords
drying
burner
air
mixing drum
recovered 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.)
Withdrawn
Application number
EP83201481A
Other languages
English (en)
French (fr)
Other versions
EP0119328A3 (de
Inventor
Sergio Luciano Marchetti
Lucio D'amelio
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.)
Stabilimenti Meccanici Vm Spa- Divisione Macchine Stradali Cmi
STABILIMENTI MECCANICI VM SpA
Original Assignee
Stabilimenti Meccanici Vm Spa- Divisione Macchine Stradali Cmi
STABILIMENTI MECCANICI VM SpA
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 Stabilimenti Meccanici Vm Spa- Divisione Macchine Stradali Cmi, STABILIMENTI MECCANICI VM SpA filed Critical Stabilimenti Meccanici Vm Spa- Divisione Macchine Stradali Cmi
Publication of EP0119328A2 publication Critical patent/EP0119328A2/de
Publication of EP0119328A3 publication Critical patent/EP0119328A3/de
Withdrawn legal-status Critical Current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
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1063—Controlling the operations
    • 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
    • E01C2019/1095—Mixing containers having a parallel flow drum, i.e. the flow of material is parallel to the gas flow

Definitions

  • the present invention relates to a drying-mixing drum for preparing bituminous mix, particularly by use of recovered material.
  • the main member of which is constituted by the drying-mixing drum, that is by a rotating cylinder provided with a burner, in which a suitable percent of recovered material and virgin material is subject to drying and mixing together with bitumen, asphalt or other fluid cementing material.
  • a drying mixing drum particularly suitable for the treatment of recovered material, which drum combines the advantages of the constructional simplicity, the high efficiency with high percent of recovered material and the large and total variability of the composition from all recovered material to all virgin material with the most various intermediate percents.
  • a drying-mixing drum comprising a rotating cylinder provided with a charging end with axial burner and with a discharging end, cha racterized in that it comprises means for controlling the amount of air fed to the burner at such a value as to allow drying and mixing of the introduced material, but not the combustion and the degradation of the bitumen contained in the recovered material possibly making part of said material.
  • the above said means for controlling the amount of air consist in that the only feeding path for the entire necessary air passes through the burner, which is provided in its turn with means for forcing the air into the drum, adjusting the amount of the same according to the different requirements.
  • the flame of the burner is put in condition to avoid damage of the bitumen of the recovered material, at the same time having the helpful effect of ensuring a suitabl.e temperature for the drying and mixing of the material and, thereof, for the formation of the desired bituminous mix.
  • the whole material, both inert and recovered may thus be introduced near the burner, with consequent possibility of reaching high levels of efficiency with high percents of recovered material and very good quality of the finished product.
  • the same drum may be enabled to work with virgin material only.
  • a drying-mixing drum which basically comprises a long cylinder 1 provided with a pair of rings 2 and 3 for its support by means of suitable groups of idle rollers and with a central toothed ring4 for its slow ro tation by means of suitable motor-driven pinion.
  • a plurality of longitudinal tongues 5 Inside the cylin der 1, fixed to the internal wall thereof, there are arranged a plurality of longitudinal tongues 5, whose function is to homogenize the material during its movement caused by the inclination of the longitudinal axis of the cylinder, from one end to the other of the same cylinder.
  • the cylinder 1 has a charging end 20 (on the right, looking at Fig. I, which is closed by a cover 6 and to which a burner 7, a material supply hopper 8 and a feed pipe 9 for fluid cementing material, in particularly bitumen, are associated.
  • the burner 7 has its mouth 10 housed in a chamber 11 together with a small tube 12 for the formation of a pilot flame for the firing of the burner. Said mouth is fed in known manner with sui table fuel and further receives the necessary air for the combustion through one feed way 13, to which a prefixed flow of air is delivered in forced and controlled manner by a fan 14 with a motor 15, which fan sucks air from a variable width mouth 16 in the sense of the arrow F of Fig. 3.
  • the hopper 8 in its turn, is provided with a pair of feed chutes 17, which, by diverging progressively from one another, bring the material to diametrally opposed points of the charging end of the cylinder 1 (fig. 2). As shown in Fig. 1, there are arranged inclined radial tongues 18, which distribute the material along the circumference of the cylinder and on the several longitudinal tongues 5.
  • a pressure sensor 19 which is schematically illustrated in Fig. 1.
  • the cylinder 1 has moreover a discharging end 21 (on the left, looking at Fig. 1), which includes a discharging mouth 22, from which a smoke sucking pipe 23 goes off.
  • a throttle valve 24 driven by a motor 25 controlled by the pressure sensor 19.
  • a prefixed percent of recovered aggregate and virgin aggregate (for example, 70% and 30%, respectively) is introduced into the drum through the hopper 8 and distributed along the circumference of the cylinder 1 by means of the inclined tongues 18.
  • the flame of the burner 7 is thus able to produce a suf ficient temperature to dry and mix the introduced material, to which bitumen or other fluid cementing material introduced through the pipe 9 is added later on, but is not able to cause the combustion of the bitumen contained in the recovered aggregate.
  • the entire cylinder is therefore used for mixing the materials, thus obtaining consequently a finished product of good quali ty with high percent of recovered material.
  • the bituminous mix thus obtained is finally discharged through the outlet mouth 22.
  • drum illustrated in the drawings can promptly be used also for the production of bituminous mix starting from virgin material only. In such case, in fact, it is sufficient to adjust suitably the flame produced by the burner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Road Paving Machines (AREA)
EP83201481A 1983-03-21 1983-10-17 Trockner-Mischer für die Bereitung von bituminösem Mischgut, insbesondere für den Gebrauch von wiedergewonnenem Material Withdrawn EP0119328A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2017583 1983-03-21
IT20175/83A IT1199992B (it) 1983-03-21 1983-03-21 Tamburo essiccatore-mescolatore per la preparazione di conglomerato bituminoso,particolarmente mediante impiego di materiale recuperato

Publications (2)

Publication Number Publication Date
EP0119328A2 true EP0119328A2 (de) 1984-09-26
EP0119328A3 EP0119328A3 (de) 1985-12-27

Family

ID=11164425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83201481A Withdrawn EP0119328A3 (de) 1983-03-21 1983-10-17 Trockner-Mischer für die Bereitung von bituminösem Mischgut, insbesondere für den Gebrauch von wiedergewonnenem Material

Country Status (3)

Country Link
EP (1) EP0119328A3 (de)
ES (1) ES526929A0 (de)
IT (1) IT1199992B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1022391A1 (de) * 1999-01-11 2000-07-26 Heijmans Infrastructuur & Milieu B.V. Verfahren zum Recycling von Teer und/oder bituminösem Material mittels thermischer Konversion in Kombination mit Asphaltproduktion
WO2011047705A1 (de) * 2009-10-23 2011-04-28 Loesche Gmbh Verfahren und anlage zum herstellen von asphaltmischgut

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674242A (en) * 1971-01-04 1972-07-04 Clarence K Stewart Preparation of asphalt paving material
US4089508A (en) * 1976-02-18 1978-05-16 Alliance Industries, Inc. Method of processing bituminous paving mixtures and apparatus therefor
US4143972A (en) * 1978-02-21 1979-03-13 Boeing Construction Equipment Company Combustion control system for bituminous drum mixers
DE2827608A1 (de) * 1978-06-23 1980-01-10 Graham K P & Ass Pty Reaktionsbehaelter und verfahren zur herstellung bituminoeser mischungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674242A (en) * 1971-01-04 1972-07-04 Clarence K Stewart Preparation of asphalt paving material
US4089508A (en) * 1976-02-18 1978-05-16 Alliance Industries, Inc. Method of processing bituminous paving mixtures and apparatus therefor
US4143972A (en) * 1978-02-21 1979-03-13 Boeing Construction Equipment Company Combustion control system for bituminous drum mixers
DE2827608A1 (de) * 1978-06-23 1980-01-10 Graham K P & Ass Pty Reaktionsbehaelter und verfahren zur herstellung bituminoeser mischungen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1022391A1 (de) * 1999-01-11 2000-07-26 Heijmans Infrastructuur & Milieu B.V. Verfahren zum Recycling von Teer und/oder bituminösem Material mittels thermischer Konversion in Kombination mit Asphaltproduktion
WO2011047705A1 (de) * 2009-10-23 2011-04-28 Loesche Gmbh Verfahren und anlage zum herstellen von asphaltmischgut
RU2509838C2 (ru) * 2009-10-23 2014-03-20 Лёше Гмбх Способ и устройство для производства асфальтовой смеси
US8882899B2 (en) 2009-10-23 2014-11-11 Loesche Gmbh Method and plant for producing asphalt mixture

Also Published As

Publication number Publication date
EP0119328A3 (de) 1985-12-27
IT1199992B (it) 1989-01-05
ES8504301A1 (es) 1985-04-16
ES526929A0 (es) 1985-04-16
IT8320175A0 (it) 1983-03-21

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Effective date: 19860506

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Inventor name: D'AMELIO, LUCIO

Inventor name: MARCHETTI, SERGIO LUCIANO