EP0186780A1 - Einrichtung zum Aufstreuen von bituminösem Bindemittel - Google Patents

Einrichtung zum Aufstreuen von bituminösem Bindemittel Download PDF

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Publication number
EP0186780A1
EP0186780A1 EP19850114924 EP85114924A EP0186780A1 EP 0186780 A1 EP0186780 A1 EP 0186780A1 EP 19850114924 EP19850114924 EP 19850114924 EP 85114924 A EP85114924 A EP 85114924A EP 0186780 A1 EP0186780 A1 EP 0186780A1
Authority
EP
European Patent Office
Prior art keywords
spraybar
binder
sensor
height
ground
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Withdrawn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
EP19850114924
Other languages
English (en)
French (fr)
Inventor
Rainer Ketola
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.)
Dynapac AB
Original Assignee
Dynapac AB
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 Dynapac AB filed Critical Dynapac AB
Publication of EP0186780A1 publication Critical patent/EP0186780A1/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Withdrawn legal-status Critical Current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
    • E01C19/12—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 distributing granular or liquid materials
    • E01C19/16—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 distributing granular or liquid materials for applying or spreading liquid materials, e.g. bitumen slurries
    • E01C19/17—Application by spraying or throwing
    • E01C19/176—Spraying or throwing elements, e.g. nozzles; Arrangement thereof or supporting structures therefor, e.g. spray-bars

Definitions

  • the present invention relates to a device for spreading bituminous binder and its purpose is to achieve a high degree of application accuracy, i e uniform transverse distribution across the road on the surface that is to be coated with the bituminous binder.
  • Binder is usually applied by means of some kind of distributor fitted with a tank, also commonly called a spraybar distributor, which is used for spreading bituminous binder in liquid form on a surface, road, yard, etc.
  • the spreader tank is either mounted on a vehicle or is equipped with wheels of its own for purposes of towing.
  • the distributor is equipped with devices by means of which binder stored in the tank can be pressurized, either inside the tank by means of an air compressor, for example, or outside the tank by means of a pump.
  • the binder is carried under pressure to a spray tube or spraybar mounted transversely to the direction of travel of the distributor vehicle and so designed that all or part of its length can be used to apply binder in a uniform pattern.
  • Regulation of kg binder per m 2 of road surface is effected by maintaining the flow through each nozzle at a possibly determined and constant level and adapting the speed of the binder distributor so that the desired rate of spread is obtained.
  • the speed of the binder distributor can also be geared to the asphalt pump motor through a feedback control system so that the predetermined amount of binder, kg/m 2 , is applied even if the speed of the binder distributor varies.
  • Regulation may be effected by controlling the asphalt pump motor either according to the pressure in the spraybar or according to the flow to the spraybar.
  • the spraybar is fitted with evenly-spaced nozzles along its entire length.
  • the spray pattern from each and every one of the nozzles may be in the shape of a fantail, solid cone, hollow cone, etc.
  • a degree of spreading accuracy which falls within the desired limits is achieved through a combination of design and manufacturing precision in regard to the spraybar and the individual nozzles and frequently also multiple overlapping of the binder jets.
  • the nozzles in the spraybar are usually mounted about 100 mm apart.
  • Flat or fantail nozzles are often used in which the jet is set at an angle of about 30° to the spraybar.
  • a definite overlap often three-fold, is desired.
  • Other types of nozzle configurations also occur.
  • a common objective for every type of nozzle configuration is always that the sprayed binder will strike the road in a definite way, that is to say in a definite pattern, which leads to specific requirements in regard to the height of the spraybar above the ground.
  • Spraybar height regulation on known machines is designed to maintain the spraybar at a constant height above the ground at all times for every nozzle configuration.
  • this leads to shortcomings in transverse application accuracy on account of the following factors:
  • the present invention is designed to eliminate these disadvantages in that optimal spraybar height is adjusted automatically with regard to the flow through each individual nozzle as well as the viscosity of the binder being spread.
  • Fig. 1 shows a spraybar distributor mounted on a truck and Fig. 2 the spray pattern described by a fantail nozzle with the jet angled at approx. 30° in relation to the spraybar.
  • Fig. 3 shows the spray pattern from a number of nozzles with threefold overlap and
  • Fig. 4 shows how the spray pattern with single overlap varies with varying spraybar height above the ground. Basically, the relationship will also be the same with three-fold overlap, for example.
  • Fig. 5 shows the spray from an individual nozzle and how the width of the spray on the ground varies with varying viscosity and/or flow rate
  • Fig. 6 finally shows a block diagram of the sensors and microprocessors for automatic control of spraybar height according to the invention.
  • Fig. 1 shows a spraybar distributor 1 with tank 2 mounted on a truck.
  • the distributor spraybar 3 is fitted with several nozzles 4 through which the bituminous binder is applied to a road, for example, from the tank via a tube and hose system in the spraybar distributor.
  • the nozzles 4 may vary in design and so impart a different shape to the jet of binder sprayed out through them.
  • a fantail nozzle is used which produces a spray pattern in the binder jet when it strikes the ground as shown in Fig. 2.
  • the nozzles are arranged at an angle of 30° relative to the spraybar.
  • Fig. 3 Shown in Fig. 4 is the spray pattern produced with single overlapping at different spraybar heights above the ground, where it produces an optimal spray pattern, i e the spray patterns of the individual nozzles are adjacent to each other. Complete coverage of the surface is not obtained at height position b and position c produces strips with double overlap.
  • Fig. 5 shows how the width of the spray pattern on the ground from the individual nozzle varies with varying binder viscosity and/or varying flow rates through the nozzle.
  • the width is given as an angle of spread ⁇ at the emergence of the spray from the nozzle. The angler, is obtained at high viscosity and/or a low flow rate and ⁇ 2 at low viscosity and/or a high flow rate.
  • FIG. 6 shows in schematic form a number of sensors and a microprocessor which together control a hydraulic system for automatic regulation of the height of the spraybar above the ground so that the desired optimal application accuracy in regard to the binder spread on the road surface is obtained.
  • Sensor A is arranged to transmit signals which specify the height of the spraybar above the ground. It may be of ultrasonic type.
  • the rate of binder flow to the spraybar is measured by sensor B which may be of displacement meter type, for example.
  • Sensor C senses the temperature of the binder, which is a measure of its viscosity.
  • Fig. 1 Shown in Fig. 1 is a spraybar of constant length. In many cases, however, it is desirable to have the capability of varying the width of spread and this is accomplished by means of telescopically adjustable spraybars. Sensor D provides information as to how many nozzles are in use.
  • Sensors A-D transmit their signals to microprocessor M.
  • Microprocessor M programmed into this microprocessor are:
  • the microprocessor can continuously calculate and adjust the spraybar height producing optimal transverse application accuracy and the value producing optimal spraybar height. Regulation of spraybar height is-effected by means of hydraulic valves 5 which control the hydraulic cylinders 6 by means of which the spraybar 3 can be raised and lowered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
EP19850114924 1984-12-27 1985-11-25 Einrichtung zum Aufstreuen von bituminösem Bindemittel Withdrawn EP0186780A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8406598A SE441371B (sv) 1984-12-27 1984-12-27 Anordning for spridning av bituminost bindemedel
SE8406598 1984-12-27

Publications (1)

Publication Number Publication Date
EP0186780A1 true EP0186780A1 (de) 1986-07-09

Family

ID=20358300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850114924 Withdrawn EP0186780A1 (de) 1984-12-27 1985-11-25 Einrichtung zum Aufstreuen von bituminösem Bindemittel

Country Status (3)

Country Link
EP (1) EP0186780A1 (de)
AU (1) AU5166585A (de)
SE (1) SE441371B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626593A1 (fr) * 1988-01-29 1989-08-04 Screg Routes & Travaux Procede et dispositif pour la realisation d'un revetement de route
FR2643924A1 (fr) * 1989-03-06 1990-09-07 Acmar Procede d'actionnement d'une rampe de repandage de bitume, et dispositif pour la mise en oeuvre de ce proced
FR2661929A1 (fr) * 1990-05-14 1991-11-15 Screg Routes & Travaux Dispositif de fabrication d'une couche intermediaire dans une membrane routiere sur le sol.
EP0464313A1 (de) * 1990-06-22 1992-01-08 Marini S.P.A. Automatischer Asphaltstrassenfertiger für Fahrbahnen und andere gepflasterte Bodenflächen
EP0509877A1 (de) * 1991-04-17 1992-10-21 Screg Vorrichtung zum Erstellen eines Strassenbelags durch sukzessive Streuung von einer Klebe- und einer heissen, bituminösen Schicht auf der zudeckenden Strassenoberfläche
FR2680806A1 (fr) * 1991-09-03 1993-03-05 Beugnet Sa Procede de controle de la rupture d'une emulsion de bitume, ainsi que dispositif pour la mise en óoeuvre de ce procede.
FR2718767A1 (fr) * 1994-04-18 1995-10-20 Mayprod Machine répandeuse de liant.
FR2817568A1 (fr) * 2000-12-05 2002-06-07 C M T P Procede et dispositif de commande du repandage de gravillons et de liant sur une chaussee

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103103915B (zh) * 2011-11-11 2016-04-06 贵州省纳米材料工程中心 车载式喷涂聚脲自动道路标线车
CN104420411B (zh) * 2013-08-27 2016-05-18 徐工集团工程机械股份有限公司道路机械分公司 一种沥青洒布摊铺机乳化沥青罐的恒温控制装置及控制方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3540360A (en) * 1968-08-02 1970-11-17 Cmi Corp Control systems for road construction machinery
US3953145A (en) * 1973-07-11 1976-04-27 Laserplane Corporation Laser beam control system for earthworking or similar machines
DE2719692A1 (de) * 1977-05-03 1978-09-14 Voegele Ag J Einbaubohle fuer strassendeckenfertiger
SU975862A1 (ru) * 1981-03-26 1982-11-23 Proizv T I Dorozhnogo Str Latt Устройство для управления положением выглаживающей плиты асфальтоукладчика 1 2
GB2102865A (en) * 1981-07-07 1983-02-09 Pedersen As Marius Spraying binder on roads
EP0102060A2 (de) * 1982-08-27 1984-03-07 Heilit & Woerner Bau-AG Vorrichtung zur selbsttätigen Regelung der Vorabstreiferhöhe eines Gleitschalungsfertigers
EP0127933A1 (de) * 1983-04-28 1984-12-12 Burt Boulton Holdings Plc Vorrichtung und Verfahren zum Versprühen eines Gemisches aus Bindemittel und einer flüchtigen Flüssigkeit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3540360A (en) * 1968-08-02 1970-11-17 Cmi Corp Control systems for road construction machinery
US3953145A (en) * 1973-07-11 1976-04-27 Laserplane Corporation Laser beam control system for earthworking or similar machines
DE2719692A1 (de) * 1977-05-03 1978-09-14 Voegele Ag J Einbaubohle fuer strassendeckenfertiger
SU975862A1 (ru) * 1981-03-26 1982-11-23 Proizv T I Dorozhnogo Str Latt Устройство для управления положением выглаживающей плиты асфальтоукладчика 1 2
GB2102865A (en) * 1981-07-07 1983-02-09 Pedersen As Marius Spraying binder on roads
EP0102060A2 (de) * 1982-08-27 1984-03-07 Heilit & Woerner Bau-AG Vorrichtung zur selbsttätigen Regelung der Vorabstreiferhöhe eines Gleitschalungsfertigers
EP0127933A1 (de) * 1983-04-28 1984-12-12 Burt Boulton Holdings Plc Vorrichtung und Verfahren zum Versprühen eines Gemisches aus Bindemittel und einer flüchtigen Flüssigkeit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626593A1 (fr) * 1988-01-29 1989-08-04 Screg Routes & Travaux Procede et dispositif pour la realisation d'un revetement de route
FR2643924A1 (fr) * 1989-03-06 1990-09-07 Acmar Procede d'actionnement d'une rampe de repandage de bitume, et dispositif pour la mise en oeuvre de ce proced
FR2661929A1 (fr) * 1990-05-14 1991-11-15 Screg Routes & Travaux Dispositif de fabrication d'une couche intermediaire dans une membrane routiere sur le sol.
EP0464313A1 (de) * 1990-06-22 1992-01-08 Marini S.P.A. Automatischer Asphaltstrassenfertiger für Fahrbahnen und andere gepflasterte Bodenflächen
EP0509877A1 (de) * 1991-04-17 1992-10-21 Screg Vorrichtung zum Erstellen eines Strassenbelags durch sukzessive Streuung von einer Klebe- und einer heissen, bituminösen Schicht auf der zudeckenden Strassenoberfläche
FR2675522A1 (fr) * 1991-04-17 1992-10-23 Screg Routes & Travaux Dispositif de realisation d'un revetement routier par repandage successif sur la surface routiere a recouvrir, d'une couche d'accrochage et d'une couche de materiau bitumineux chaud.
FR2680806A1 (fr) * 1991-09-03 1993-03-05 Beugnet Sa Procede de controle de la rupture d'une emulsion de bitume, ainsi que dispositif pour la mise en óoeuvre de ce procede.
FR2718767A1 (fr) * 1994-04-18 1995-10-20 Mayprod Machine répandeuse de liant.
FR2817568A1 (fr) * 2000-12-05 2002-06-07 C M T P Procede et dispositif de commande du repandage de gravillons et de liant sur une chaussee

Also Published As

Publication number Publication date
AU5166585A (en) 1986-07-03
SE8406598D0 (sv) 1984-12-27
SE441371B (sv) 1985-09-30

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Inventor name: KETOLA, RAINER