EP1445380A2 - Mélangeur pour la fabrication d'un produit enrobé - Google Patents

Mélangeur pour la fabrication d'un produit enrobé Download PDF

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Publication number
EP1445380A2
EP1445380A2 EP04290085A EP04290085A EP1445380A2 EP 1445380 A2 EP1445380 A2 EP 1445380A2 EP 04290085 A EP04290085 A EP 04290085A EP 04290085 A EP04290085 A EP 04290085A EP 1445380 A2 EP1445380 A2 EP 1445380A2
Authority
EP
European Patent Office
Prior art keywords
tank
mixer
bitumen
ramp
longitudinal direction
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Withdrawn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
EP04290085A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1445380A3 (fr
Inventor
Richard Blaszczyk
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.)
Famatec
Original Assignee
Famatec
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 Famatec filed Critical Famatec
Publication of EP1445380A2 publication Critical patent/EP1445380A2/fr
Publication of EP1445380A3 publication Critical patent/EP1445380A3/fr
Withdrawn legal-status Critical Current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
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/105—Mixing or coating by a combination of methods covered by E01C19/1018 - E01C19/104, excluding E01C19/1036
    • 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
    • E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
    • 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
    • E01C19/1068—Supplying or proportioning the ingredients
    • E01C19/1077—Supplying or proportioning the ingredients the liquid ingredients

Definitions

  • the invention relates to a mixer for manufacturing a product. coated and in particular a bituminous coated product made of a material particulate and a bituminous coating binder such as bitumen.
  • Known mixers for the manufacture of coated products bituminous which have a tank having a longitudinal axis in one direction horizontal and at least two mixing elements mounted to rotate inside the tank around an axis of longitudinal direction of the tank.
  • a bituminous binder spreading ramp is placed comprising at least one bituminous binder injector and generally several injectors in each of which the bituminous binder is produced which is discharged at the outlet of the injectors by spray nozzles, on a particulate material transported in the longitudinal direction of the mixer, by the mixing elements of the mixer, between one end inlet of the mixer into which the particulate material is discharged and an outlet part, at the lower end of the mixer tank and at its longitudinal end opposite its inlet end in which the particulate material is spilled.
  • the bituminous binder spreading ramp is generally arranged in a transverse direction, i.e. perpendicular to the direction longitudinal of the tank, above the mixer tank.
  • Injection devices for the bituminous binder spreading boom can be made to ensure the mixing of at least two components such as hot bitumen introduced into the body of the boom and water introduced into a mixing chamber of the injection device in which flows the hot liquid bitumen brought by the ramp.
  • an emulsion or foam is obtained bitumen which is dispersed by the outlet nozzle of the injection device on the particulate material circulating in the mixer.
  • the bituminous binder spreading ramp on the particulate material is placed in an arrangement, in the longitudinal direction of the mixer, such that the bituminous binder is perfectly incorporated into the material granular and the kneading produces a good quality coated material, that is to say whose grains are perfectly covered with a layer bituminous.
  • the length along which the incorporation is carried out of the coating binder and the kneading of the particulate material in the presence of the binder should not be excessive, depending on the characteristics of the material particulate and coating binder, to limit energy expenditure necessary to obtain a quality product.
  • the length necessary to achieve good incorporation binder and effective mixing can be variable, so that a mixer of a given type can be used practically only for the manufacture of coated products, from particulate material and binder having properties constant.
  • mixers which can be adapted to particulate materials and natural binders very diverse.
  • the object of the invention is therefore to propose a mixer for manufacturing a coated product consisting of a particulate material and a binder coating, comprising a tank having a longitudinal axis in one direction horizontal, at least one mixing element rotatably mounted inside of the tank around an axis arranged in the longitudinal direction of the tank, at least one means of discharging solid particulate material into the tank at a first longitudinal end of the tank, a spreading ramp of fluid binder arranged above the tank in a transverse direction substantially perpendicular to the longitudinal direction of the tank and comprising at least one spray nozzle directed towards the tank and an orifice outlet of coated material at a second end of the tank, in the longitudinal direction, opposite the first end, this mixer can be easily adapted to very specific particulate materials various and in particular of very diverse particle sizes and binders variable chemical composition and fluidity.
  • the binder spreading ramp is movably mounted in the longitudinal direction on the mixer tank, so that the position at least one spreading nozzle can be adjusted, in the longitudinal direction movement of the particulate material inside the tank of the mixer.
  • Figure 1 is a top view of a mixer according to the invention.
  • Figure 2 is a side elevational view in longitudinal section partial view of the mixer shown in Figure 1.
  • Figure 3 is a cross-sectional view along 3-3 of the mixer shown in Figure 1.
  • a mixer according to the invention generally designated by the reference 1 comprising a tank 2 extending in a substantially horizontal longitudinal direction 3 and having a cross section (visible in Figure 3) of constant shape depending on the length of the tank.
  • the horizontal axis of the tank can be advantageously tilted relative to the horizontal by an angle positive or negative considering the direction of material flow in the blender.
  • the cross section of the tank 2 has two straight vertical parts and two parts circular connecting at an angular point, the tank having two walls vertical lateral upper planes and a bottom made up of two parts cylindrical with axes of longitudinal direction parallel to each other are located in the same horizontal plane.
  • the mixing elements of the mixer 1 can be constituted by pallets fixed on the respective shafts 4a and 4b which are rotated, by respective motors 5a and 5b fixed on one of the end walls longitudinal of the tank 2 of the mixer ensuring the rotational drive respective pins 5'a and 5'b sealingly pass through the wall end of the tank 2 of the mixer, so as to be connected respectively to the shaft 4a of the first mixing element or to the shaft 4b of the second mixing element of mixer 1, at a first end of these kneading elements located in the vicinity of a first end of the tank 2 of the mixer.
  • the longitudinal shafts of the kneading elements 4a and 4b are connected to a second end opposite the first end, to second pins 5 "a and 5" b of longitudinal direction traversing so watertight the second longitudinal end wall of the tank 2 of the mixer opposite the first longitudinal end wall.
  • 5 "a and 5 “b are connected to respective gears 6a and 6b meshing one with the other. This ensures stable and perfectly parallel mounting of the two rotating shafts 4a and 4b of the mixing elements of the mixer 1.
  • the mixer 1 comprises, in a delimited inlet end part by the first longitudinal end wall of the tank 2, two devices supply of solid granular material 7a, 7b allowing the discharge of a granular material of good composition and particle size defined in the mixer tank, above the mixing elements mounted on the rotary shafts 4a and 4b.
  • the devices supply and discharge of granular material 7a and 7b include each a rotating drum with a horizontal axis of longitudinal direction respective 8a, 8b and a respective conveyor belt 8'a, 8'b guided upstream of the corresponding drum, by rollers holding the conveyor belt.
  • the feed devices 7a and 7b of granular materials have a sheet metal body forming in particular, at the first end of the mixer, an inclined wall ensuring the discharge of all granular materials poured out by the corresponding roller, inside the mixer tank.
  • the mixer also has a bituminous binder spreading ramp 10 on the granular materials poured into the tank 2 of the mixer and transported from the first end to the second end of the mixer comprising, in the bottom of the tank, an outlet opening 9 of the coated product produced in mixer 1, by the mixing elements longitudinal direction.
  • the binder spreading ramp 10 is made mobile in the longitudinal direction 3 of the mixer, so that you can adjust the position of the binder spreading area on granular materials circulating in the mixer.
  • Two U-shaped sections 13a and 13b are fixed along the upper walls vertical planes of the tank to allow the fixing of vertical supports 12a and 12b of the horizontal rails 11a and 11b respectively.
  • the rails 11a and 11b are supported at their longitudinal ends by a first and by a second vertical supports 12a (or 12b), respectively.
  • the rail 11a is extended to the second end of the tank 2 of the mixer by a spar 11'a supported, at a first end, by the second support 12a and, at its second end, by a vertical support 12'a analogous to the supports 12a.
  • the rail 11b has an extension up to the second end of tank 2 of the mixer.
  • the binder spreading ramp 10 comprises two ramp bodies 14 and 14 'in the form of parallelepipedic hollow bodies having a longitudinal axis in the transverse direction of the tank 2 of the mixer, i.e. in a horizontal direction perpendicular to the longitudinal direction 3 from the mixer tank.
  • the two ramp bodies 14 and 14 'joined by a longitudinal face vertical parallelepipedic hollow bodies are integral with four legs 15a, 15'a, 15b and 15'b fixed on a support structure for ramp body 14 and 14 'on either side of the ramps 14 and 14', the structure for supporting the ramps 14 and 14 'and the vertical legs 15a, 15'a, 15b and 15'b constituting a carriage for moving the binder spreading ramp 10 in the longitudinal direction 3 of the tank 2 of the mixer.
  • the support for the ramp bodies 14 and 14 ' comprises, in the extension of a front part of the ramp bodies 14 and 14 ', a profile of support 16 horizontal and of longitudinal direction on which are fixed the legs 15a and 15b and a horizontal section 17 of longitudinal direction connected to the upper part of the ramp bodies 14 and 14 ', on which are fixed the vertical legs 15b and 15'b.
  • Each of the vertical legs 15a, 15'a, 15b, 15'b carries, at its end lower, a roller 18 rotatably mounted on a horizontal steering axis cross.
  • the axes of rotation of the rollers 18 pass through the vertical faces U-shaped rails 11a and 11b inside longitudinal slots in which they can move in the longitudinal direction of the tank 2, the rollers 18 being mounted at the end of the axes, so as to be able roll inside the U-shaped rails 11a and 11b.
  • the entire binder spreading ramp 10 secured to the carriage mounted rolling in the longitudinal direction of the rails 11a and 11b can therefore be moved in the longitudinal direction of the tank 2 of the mixer.
  • each of the ramp bodies 14 and 14 'are mounted injectors spreader 20 which each have a pin injector body vertical mounted inside the ramp body 14 or 14 'and comprising, in its side wall, openings allowing communication between a internal space of the ramp body intended to receive the binder with a space internal of the injector body 20 communicating with a mixing chamber 21 communicating itself with a nozzle 22 for spreading binder.
  • the mixing chambers 21 of the injectors 20 are connected to a pipe supply of a second fluid component of the binder which can be example of pressurized water.
  • Each of the injectors 20 comprises a cylinder 23 fixed on the corresponding ramp body 14 or 14 'allowing the actuation a valve for opening or closing a communication passage between the injector body receiving a first component of the binder (for example bitumen) via the ramp body 14 or 14 'and the mixing chamber 21 receiving a second component of the coating binder granular material in the mixer.
  • a first component of the binder for example bitumen
  • the bodies of ramp 14 and 14 ' are supplied with hot and liquid bitumen by a device supply 24 at one end of the ramp 10 located towards the outside of the tank 2 of the mixer in the transverse direction and the chambers 21 are supplied with water, so that the injectors 20 can ensure the development of a binder consisting of bitumen foam and the spreading of the bitumen foam on the particulate material inside the mixer 2.
  • a binder development and spreading ramp 10 comprising one or more boom bodies and one or more injectors on each of the ramp body.
  • the ramp has two bodies ramp 14 and 14 'and five injectors, two injectors being arranged on the ramp body 14 and three injectors on the ramp body 14 ', the injectors of the ramp body 14 and the injectors of the ramp body 14 'being staggered relative to each other.
  • the granular materials and the binder incorporated in these materials are then kneaded up to outlet 9 of the mixer, so as to obtain a homogeneous coated product.
  • the binder spreading ramp 10 in a well determined position in the longitudinal direction of the mixer tank, to obtain conditions for incorporating the binder and kneading ideal.
  • the entire bitumen ramp 10 can be moved manually, by rolling the rollers of the carriage supporting the ramp 10 in the longitudinal direction to a desired position in which the ramp can be blocked.
  • FIG 1 there is shown the supply means 24 of the 10 bitumen ramp in two positions 24 and 24 'which correspond to two positions in the longitudinal direction 10 and 10 'of the ramp, the position 10 'being only shown by the end part of the ramp 10 connected to the supply means 24 in their position 24 '.
  • the means 24 for supplying the ramp 10 with bitumen comprise a fixed main pipe 26 for supplying bitumen and a pipe main stationary 27 for returning bitumen not used in the boom 10.
  • the fixed main pipe 26 is connected to an intermediate pipe mobile 25 for feeding the ramps via a first seal turning 28 with vertical axis.
  • the movable supply line 25 of the bodies of ramp is connected to a first end of the ramp bodies 14 and 14 'by a second rotating joint 29 with a vertical axis.
  • Bitumen not used by the injectors 20 to develop foam bitumen in the mixing chamber 21 of the injectors is recovered by a pipe 30 at the second end of the ramps 14 and 14 'to be returned, via a first rotary joint 31, an intermediate pipe mobile 32 bitumen return and a second rotary joint 33 at the fixed pipe 27 for returning the bitumen to a storage tank.
  • the mixer according to the invention therefore makes it very easy to adapt the position of the binder spreading ramp to nature and to the grain size particulate material (s) spilled into the mixer when first end.
  • the mixer according to the invention can therefore be used for manufacturing of products coated with particulate materials and natural binder very diverse.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP04290085A 2003-01-14 2004-01-13 Mélangeur pour la fabrication d'un produit enrobé Withdrawn EP1445380A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0300365 2003-01-14
FR0300365A FR2849873B1 (fr) 2003-01-14 2003-01-14 Melangeur pour la fabrication d'un produit enrobe

Publications (2)

Publication Number Publication Date
EP1445380A2 true EP1445380A2 (fr) 2004-08-11
EP1445380A3 EP1445380A3 (fr) 2005-04-20

Family

ID=32524909

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04290085A Withdrawn EP1445380A3 (fr) 2003-01-14 2004-01-13 Mélangeur pour la fabrication d'un produit enrobé

Country Status (2)

Country Link
EP (1) EP1445380A3 (zh)
FR (1) FR2849873B1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102296520A (zh) * 2011-06-06 2011-12-28 吴晓东 浇注式沥青混合料立式搅拌机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB879692A (en) * 1958-04-10 1961-10-11 Iowa State College Res Found Improved method for combining a bituminous binder with an aggregate
DE2259407A1 (de) * 1972-12-05 1974-06-06 Huther & Co Fa Verfahren und vorrichtung zum herstellen von beton fuer den unterbau von strassendecken, flugpisten oder dergleichen
EP0618330A1 (fr) * 1993-03-23 1994-10-05 Screg Malaxeur et procédé d'enrobage d'un matériau granulaire
WO1996000324A1 (en) * 1994-06-27 1996-01-04 Leif Persson Plant I Lomma Ab Method and device for cold mixing of road surfacing material
EP1052334A2 (en) * 1999-05-12 2000-11-15 MARINI S.p.A. Mobile mixer to be used in train for cold recycling asphalt conrete roadways

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB879692A (en) * 1958-04-10 1961-10-11 Iowa State College Res Found Improved method for combining a bituminous binder with an aggregate
DE2259407A1 (de) * 1972-12-05 1974-06-06 Huther & Co Fa Verfahren und vorrichtung zum herstellen von beton fuer den unterbau von strassendecken, flugpisten oder dergleichen
EP0618330A1 (fr) * 1993-03-23 1994-10-05 Screg Malaxeur et procédé d'enrobage d'un matériau granulaire
WO1996000324A1 (en) * 1994-06-27 1996-01-04 Leif Persson Plant I Lomma Ab Method and device for cold mixing of road surfacing material
EP1052334A2 (en) * 1999-05-12 2000-11-15 MARINI S.p.A. Mobile mixer to be used in train for cold recycling asphalt conrete roadways

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102296520A (zh) * 2011-06-06 2011-12-28 吴晓东 浇注式沥青混合料立式搅拌机

Also Published As

Publication number Publication date
EP1445380A3 (fr) 2005-04-20
FR2849873A1 (fr) 2004-07-16
FR2849873B1 (fr) 2005-11-04

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