WO1990010752A1 - Recycleur de surfaces de routes - Google Patents

Recycleur de surfaces de routes Download PDF

Info

Publication number
WO1990010752A1
WO1990010752A1 PCT/AU1990/000109 AU9000109W WO9010752A1 WO 1990010752 A1 WO1990010752 A1 WO 1990010752A1 AU 9000109 W AU9000109 W AU 9000109W WO 9010752 A1 WO9010752 A1 WO 9010752A1
Authority
WO
WIPO (PCT)
Prior art keywords
road surface
road
recycler
bin
reclaimer
Prior art date
Application number
PCT/AU1990/000109
Other languages
English (en)
Inventor
Kenneth Douglas Hall
Original Assignee
Bp Australia Limited
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 Bp Australia Limited filed Critical Bp Australia Limited
Priority to KR1019910701124A priority Critical patent/KR920701571A/ko
Publication of WO1990010752A1 publication Critical patent/WO1990010752A1/fr

Links

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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/065—Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving

Definitions

  • This invention relates to road surface recycling.
  • a road surface recycling system which comprises a mobile surface reclaimer which removes paving material from the surface of a road by means of a rotating drum which has cutting bits around the periphery.
  • the drum rotates so as to cut in an upward direction into the road surface which produces large pieces of paving material.
  • These are fed onto a conveyor which extends out behind the surface reclaimer to a further mobile machine travelling behind the reclaimer.
  • the further machine includes a screening system arranged to pass relatively small pieces to a mixing means where the smaller pieces and binding material are mixed.
  • the present Invention provides a road surface recycler by which reclaiming, pulverizing and relaying of material can be carried out by a single mobile machine which is relatively compact and easy to operate.
  • a road surface recycler comprising: a mobile structure mounted on ground engaging means adapted to support the mobile structure for movement across the ground whereby the structure can be advanced along a paved road; a paving material reclaimer mounted on the mobile structure and operative when the mobile structure is advanced along a paved road to cut road paving material from the surface of the road; a pulverizer mounted on the mobile structure to receive road paving material cut from the road by the reclaimer; and delivery means to deliver pulverized material from the pulverizer onto the road surface from which paving material has been removed by the reclaimer.
  • the road surface reclaimer comprises a rotary drum fitted with cutting elements around its circumference and mounted on the mobile structure for rotation about a generally horizontal axis transverse to the direction of travel of the recycler and reclaimer drive means operative to drive the drum in such a direction as to cut downwardly into the surface of the road so that paving material cut from the road surface is passed rearwardly of the direction of travel beneath the drum.
  • the mobile structure also carries a bin to receive pulverized material from the pulverizer and the delivery means comprises a conveyor operable to transport pulverized material from the bin and to deliver it onto the road surface.
  • the mobile structure may carry a screed to spread pulverized material delivered by the conveyor onto the road surface and the conveyor may be operable normally to deliver pulverized material from the bin to the road surface ahead of the screed but may be alternatively operable to discharge pulverized from the bin from the rear of the recycler.
  • Figure 1 is a side elevation of a road surface recycler constructed in accordance with the invention
  • Figure 2 is a vertical cross-section through the main parts of the road recycler illustrated in Figure 1; and Figure 3 is a cross-section taken generally on the line 3-3 in Figure 2.
  • the illustrated road surface recycler comprises a mobile main machine structure denoted generally as 1, mounted on grounding engaging means in the form of front and rear crawler assemblies 2 and 3 spaced longitudinally of the direction of travel of the recycler.
  • the two front crawler assemblies 2 are disposed one to each side of the machine and each comprises a steering bogie 4 carrying idler sprockets 5 and a crawler track 6.
  • Each bogie 4 is mounted on a post 7 which extends up into a housing at the front end of the main machine structure 1.
  • the rear pair of crawler assemblies 3 are also disposed one to each side of the machine.
  • Each rear assembly comprises a driving bogie 8 mounted on a post 9 and fitted with sprockets 10 and crawler track 11.
  • Each of the driving bogies 8 carries a hydraulic motor coupled to one of the sprockets to drive the crawler track 11 whereby the machine can be propelled along a road in either direction.
  • the mounting posts 9 for the rear crawler assemblies extend up into the main machine frame structure 1. Both the forward posts 7 and rearward posts 9 may incorporate hydraulic rams operable to raise and lower the main machine structure on the crawler assemblies so as to allow the machine to be raised from its normal operating condition for transport and anouvering onto a low loader.
  • the hydraulic controls for the drive motors, the steering gear and various other components of the machine yet to be described are grouped together in a control console 12 at an operator's station 13 located near the forward end of the machine.
  • the main machine frame carries a road paving reclaimer drum 14 fitted with cutting elements 15 around its circumference and mounted on structure 1 by a shaft 16 for rotation about a horizontal axis extending transverse to the direction of travel of the machine.
  • the reclaimer drum is driven from a power take-off via a gear box, clutch and pulley and belt drive in the direction indicated by the arrows 17 so that as the reclaimer advances forwardly along a paved road surface 20, the reclaimer drum cuts downwardly into the road surface to cut paving material from the road surface and to pass the cut material rearwardly of the direction of travel beneath the drum.
  • the downward cutting action ensures that large pieces of paving are not lifted from the road surface but pieces are cut progressively to a generally small size determined by the spacing of the cutters around the drum.
  • the drum and cutters also act to pulverize the cut material to some extent as it passes under the drum.
  • Paving material cut from the paved road surface and passing rearwardly beneath the drum is collected by a bucket elevator denoted generally as 21 which lifts the material rearwardly and upwardly to discharge it into a pulverizer denoted generally as 22 which is mounted on the main machine frame structure 1 behind and above the reclaimer drum 14.
  • Bucket elevator 21 comprises a series of buckets 30 fixed to drive chains 23 extending around lower idler sprockets 24 and drive sprockets 25 driven from a hydraulic motor 26.
  • the bucket assembly is disposed within an elevator housing 27 having a bottom inlet opening 28 and an upper discharge opening 29.
  • housing 27 is formed with a downwardly and forwardly projecting scoop extension 31 to scoop up the cut material and direct it into the elevator opening 28 whence it is lifted by the buckets 30 to the top of the elevator housing and discharges through the opening 29 into the pulverizer 22.
  • Pulverizer 22 may be constructed as a conventional pug mill. It comprises a sturdy steel pulverizing vessel 32 with top hatches 33 and a bottom discharge opening 34 at the rear end of the vessel 32.
  • the pulverizing vessel defines a rectangular pulverizing chamber in which are mounted two contra-rotating paddle assemblies 35.
  • the paddle assemblies comprise paddle arms 36 radiating out from two parallel paddle shafts 37 extending through the pulverizing chamber in the front to rear direction. In the mid part of the pulverizing chamber the paddle arms of one assembly project between the arms of the other assembly and the two sets of paddle arms are contra-rotated as indicated by the arrows 38 by the operation of a hydraulic motor 39 mounted at the rear of the pulverizer vessel and driving the shafts 37 through a belt drive 41.
  • the action of the paddles on the reclaimed road material delivered into the pulverizing chamber is to mix the material and to move it progressively to the rear of the pulverizing chamber toward the bottom discharge outlet 34.
  • the reclaimed paving material in the pulverizer 22 is mixed with a liquid binder in the form of a water and bitumen emulsion sprayed into the pulverizer chamber through a pipe manifold 42 extending through the upper part of the chamber rearwardly from the inlet and provided with sprays 43.
  • the emulsion is supplied to the pipe manifold from a tank 45 mounted on the machine frame structure 1 or from a separate tanker driven in front of or beside the reclaimer.
  • An auxiliary water supply manifold 44 also extends through the upper part of the pulverizer chamber. Additional water can be sprayed into the pulverizer chamber through this auxiliary manifold when necessary to increase the moisture content of the mixture leaving the pulverizer.
  • the pulverized mixture of reclaimed road material and emulsion drops through the pulverizer outlet 34 into a surge bin 51 which is mounted on the main machine structure 1 immediately below the pulverizer.
  • Bin 51 has upright front and rear walls 52, 53 and side walls 54 which slope laterally inwardly of the machine to a bottom outlet 55.
  • a belt conveyor 56 extends across the bottom outlet 55 of the bin in the front to rear direction of the machine.
  • Conveyor 56 comprises a conveyor belt 57 mounted on front and rear rollers 58, 59 and the front rollers are driveable by an internal hydraulic motor 60 to drive the conveyor belt in forward and reverse directions.
  • the conveyor belt When the conveyor belt is driven in the forward direction it transports material from the bottom of the surge bin 51 forwardly of the machine and drops it onto the road surface 40 from which paving material has been removed by the reclaimer 14.
  • the front wall 52 of bin 51 carries a vertical slide plate 61 which can be raised and lowered by operation of a hydraulic ram 62 to vary the rate of feed of material from the bin when the conveyor is operated to discharge material forwardly from the bin.
  • the screed assembly comprises a pair of spiral augers 65 extending transversely of the machine and a screed plate 66 with an upturned leading edge 67 extending across the machine immediately behind the augers 65.
  • the augers are driven independently of one another through internal hydraulic motors so as to spread the material deposited into a windrow by conveyor 57 across the road surface before it is finally consolidated and smoothed by the action of the screed plate 66.
  • the screed assembly simply hangs under its own weight on pivot arms 64 to level the deposited material.
  • the angle of attack of the screed can be varied by raising and lowering the forward ends of the pivot arms 64 by the operation of a pair of hydraulic rams 71.
  • the lower ends of rams 71 are pivotally attached to lugs 72 adjacent the front ends of pivot arms 64 which are provided with pins 73 engaging vertical slide bars 74 fixed to the main machine structure 1.
  • the front ends of pivot bar 74 are thus held at a height dependant on the setting of rams 71 and are free to pivot about the pivot connections 72 but the substantial drag forces applied to the arms 64 are transmitted to the machine frame via the pins 73 and bars 74.
  • Two additional hydraulic rams 75 are connected between the machine frame and the screed assembly so as to be operative to lift the screed assembly well away from the road surface for transport.
  • the rear wall 53 of surge bin 51 is provided with a rearwardly opening gate 81 to allow rapid discharge of material from the rear of the bin by reverse operation of conveyor 57. Material may thus be dumped directly in a pile or windrow behind the machine or may be discharged into an elevator brought up to the rear of the machine to transfer the material into another vehicle for transport to another location.
  • a pair of wing platforms 82 project from the rear of the screed assembly. An operator may stand on one of these platforms to maintain inspection of the finished surface of the recycled material. Remote controls may be provided at this location for control of the conveyor 57, feed rate adjustment rams 62 and the screed adjustment rams 71.
  • Surge bin 51 has sufficient capacity to carry an amount of paving material which is cut from a length of a paved road surface equal to the distance between the reclaimer drum 14 and the screed assembly 63. This enables material to be carried forward at the commencement of a reclaiming run until it can be deposited on that part of the road from which material has been removed. In conventional machinery without the provision of such a surge bin, the removed material must be deposited continuously and at the commencement of a run the material is therefore dumped onto an unreclaimed part of the road and must be subsequently collected.
  • the bin capacity should be sufficient to accomodate material cut from a road with a paving thickness up to about 150 mm.
  • a typical machine may have a cutting width of two metres and an effective distance between the reclaimer and the screed of about 3.3 metres.
  • the minimum capacity requirement would be about 2.22 tonnes in which case the bin may typically have a capacity of about 3 tonnes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Road Repair (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un recycleur de surfaces de routes destiné à couper la matière de la chaussée de route provenant d'une route, à pulvériser cette matière, à la mélanger avec un liant liquide et à la redéposer sur la surface de route. Une seule structure mobile transporte un tambour de récupération (14) destiné à couper la matière de chaussée provenant de la route, un pulvérisateur (22) destiné à casser ladite matière et à la mélanger avec un liant, ainsi qu'un moyen d'acheminement (56) destiné à redéposer ladite matière sur la route. Ledit tambour de récupération (14) est entraîné dans un sens (17) de découpage descendant dans la surface de la route (40) et passant la matière coupée vers l'arrière sous le tambour, afin de l'acheminer jusqu'au pulvérisateur. La matière pulvérisée est acheminée jusqu'à un silo intermédiaire (51) pouvant accumuler de la matière jusqu'à ce qu'elle puisse être déposée sur la route, au niveau d'une position déjà traversée par ledit tambour de récupération.
PCT/AU1990/000109 1989-03-16 1990-03-16 Recycleur de surfaces de routes WO1990010752A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910701124A KR920701571A (ko) 1989-03-16 1990-03-16 아스팔트도로 표면재생기

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPJ3256 1989-03-16
AUPJ325689 1989-03-16
AU52720/90A AU5272090A (en) 1989-03-16 1990-03-16 Road surface recycler

Publications (1)

Publication Number Publication Date
WO1990010752A1 true WO1990010752A1 (fr) 1990-09-20

Family

ID=25629846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1990/000109 WO1990010752A1 (fr) 1989-03-16 1990-03-16 Recycleur de surfaces de routes

Country Status (3)

Country Link
EP (1) EP0463040A4 (fr)
AU (1) AU5272090A (fr)
WO (1) WO1990010752A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992011415A1 (fr) * 1990-12-24 1992-07-09 Jean Filion Machine a faire des routes
US5575538A (en) * 1995-06-01 1996-11-19 Astec Industries, Inc. Rock saw with centerline conveyor assembly and method of digging a narrow trench
US7004675B2 (en) * 2003-03-06 2006-02-28 Carolina P&P, Llc Pavement recycling machine and method of recycling pavement
WO2008118029A3 (fr) * 2007-05-02 2008-11-13 Quinspread Technologies Ltd Appareil et procédé d'épandage de matériau particulaire
US9506205B1 (en) 2015-06-10 2016-11-29 Caterpillar Paving Products Inc. Rotary mixer with a front-mounted additive distributor
WO2017194873A1 (fr) 2016-05-10 2017-11-16 Colas Dispositif pour le recyclage in situ de materiaux constitutifs d'une chaussée de circulation et concasseur pour fraisats de chaussée de circulation
US10391521B2 (en) 2016-07-29 2019-08-27 Steve L. Gilbert Systems and methods for large debris conveyance
CN110409269A (zh) * 2019-08-29 2019-11-05 嘉鹏再升科技（深圳）股份有限公司 一种用于耙松后旧沥青混合料温度提升的方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905456A (en) * 1955-08-15 1959-09-22 Pettibone Wood Mfg Co Breaker bar and pulverizer assemblies for road rebuilding apparatus
US3843274A (en) * 1972-09-25 1974-10-22 Caterpillar Tractor Co Asphalt reclaimer
US4011023A (en) * 1975-12-15 1977-03-08 Cutler Repaving, Inc. Asphalt pavement recycling apparatus
EP0132202A1 (fr) * 1983-07-13 1985-01-23 Ermont S.A. Dispositif mobile pour l'élaboration à froid et l'épandage sur le chantier de produits enrobés bitumineux pour revêtements routiers
WO1985003974A1 (fr) * 1984-03-01 1985-09-12 Caterpillar Tractor Co. Procede et appareil de fragmentation de l'asphalte
EP0162792A1 (fr) * 1984-05-10 1985-11-27 SOCIETE DE MATERIEL DE MANUTENTION ET DE CONCASSAGE - S2MC Société dite: Station mobile autonome de concassage
EP0316752A1 (fr) * 1987-11-18 1989-05-24 Egli Ag Dispositif de restauration des couches de revêtement routier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3167319A (en) * 1961-05-16 1965-01-26 Torrey Anthony J Sand spreading mechanism with reversible conveyor
NL6606169A (fr) * 1965-05-11 1966-11-14
US4272212A (en) * 1979-06-15 1981-06-09 Andrew J. Bauer, Jr. Method and apparatus for rejuvenating and recycling asphalt

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905456A (en) * 1955-08-15 1959-09-22 Pettibone Wood Mfg Co Breaker bar and pulverizer assemblies for road rebuilding apparatus
US3843274A (en) * 1972-09-25 1974-10-22 Caterpillar Tractor Co Asphalt reclaimer
US4011023A (en) * 1975-12-15 1977-03-08 Cutler Repaving, Inc. Asphalt pavement recycling apparatus
EP0132202A1 (fr) * 1983-07-13 1985-01-23 Ermont S.A. Dispositif mobile pour l'élaboration à froid et l'épandage sur le chantier de produits enrobés bitumineux pour revêtements routiers
WO1985003974A1 (fr) * 1984-03-01 1985-09-12 Caterpillar Tractor Co. Procede et appareil de fragmentation de l'asphalte
EP0162792A1 (fr) * 1984-05-10 1985-11-27 SOCIETE DE MATERIEL DE MANUTENTION ET DE CONCASSAGE - S2MC Société dite: Station mobile autonome de concassage
EP0316752A1 (fr) * 1987-11-18 1989-05-24 Egli Ag Dispositif de restauration des couches de revêtement routier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0463040A4 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992011415A1 (fr) * 1990-12-24 1992-07-09 Jean Filion Machine a faire des routes
US5575538A (en) * 1995-06-01 1996-11-19 Astec Industries, Inc. Rock saw with centerline conveyor assembly and method of digging a narrow trench
US7004675B2 (en) * 2003-03-06 2006-02-28 Carolina P&P, Llc Pavement recycling machine and method of recycling pavement
WO2008118029A3 (fr) * 2007-05-02 2008-11-13 Quinspread Technologies Ltd Appareil et procédé d'épandage de matériau particulaire
AU2008100708B4 (en) * 2007-05-02 2012-08-02 Nhance Technologies (Australia) Limited Apparatus and Method for Spreading Particulate Material
AU2008230193B2 (en) * 2007-05-02 2012-08-16 Nhance Technologies (Australia) Limited Apparatus and method for spreading particulate material
US9506205B1 (en) 2015-06-10 2016-11-29 Caterpillar Paving Products Inc. Rotary mixer with a front-mounted additive distributor
WO2017194873A1 (fr) 2016-05-10 2017-11-16 Colas Dispositif pour le recyclage in situ de materiaux constitutifs d'une chaussée de circulation et concasseur pour fraisats de chaussée de circulation
FR3051202A1 (fr) * 2016-05-10 2017-11-17 Colas Sa Dispositif pour le recyclage in situ de materiaux d'une chaussee de circulation et concasseur specialement adapte
US10619314B2 (en) 2016-05-10 2020-04-14 Colas Apparatus for in-place recycling of materials forming part of a roadway pavement, and crusher for milling debris from a roadway pavement
US10391521B2 (en) 2016-07-29 2019-08-27 Steve L. Gilbert Systems and methods for large debris conveyance
US10744533B2 (en) 2016-07-29 2020-08-18 Steve L. Gilbert Systems and methods for large debris conveyance
US11185888B2 (en) 2016-07-29 2021-11-30 Steve L. Gilbert Systems and methods for large debris conveyance
US11931778B2 (en) 2016-07-29 2024-03-19 Steve L. Gilbert Systems and methods for large debris conveyance
CN110409269A (zh) * 2019-08-29 2019-11-05 嘉鹏再升科技（深圳）股份有限公司 一种用于耙松后旧沥青混合料温度提升的方法

Also Published As

Publication number Publication date
EP0463040A4 (en) 1992-05-06
EP0463040A1 (fr) 1992-01-02
AU5272090A (en) 1990-10-09

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