EP0365422A1 - Verfahren zur Zusammensetzung eines flüssigen Grundprodukts und eines Härters zum Erreichen eines schnellhärtenden Produkts, Mittel zum Ausführen des Verfahrens und Vorrichtung, versehen mit diesen Mitteln - Google Patents

Verfahren zur Zusammensetzung eines flüssigen Grundprodukts und eines Härters zum Erreichen eines schnellhärtenden Produkts, Mittel zum Ausführen des Verfahrens und Vorrichtung, versehen mit diesen Mitteln Download PDF

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Publication number
EP0365422A1
EP0365422A1 EP89402866A EP89402866A EP0365422A1 EP 0365422 A1 EP0365422 A1 EP 0365422A1 EP 89402866 A EP89402866 A EP 89402866A EP 89402866 A EP89402866 A EP 89402866A EP 0365422 A1 EP0365422 A1 EP 0365422A1
Authority
EP
European Patent Office
Prior art keywords
circuit
hardener
mixer
flow
hydraulic
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.)
Granted
Application number
EP89402866A
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English (en)
French (fr)
Other versions
EP0365422B1 (de
Inventor
Jean Philippe Machenaud
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.)
PROSIGN SA
Original Assignee
PROSIGN SA
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 PROSIGN SA filed Critical PROSIGN SA
Priority to AT89402866T priority Critical patent/ATE84335T1/de
Publication of EP0365422A1 publication Critical patent/EP0365422A1/de
Application granted granted Critical
Publication of EP0365422B1 publication Critical patent/EP0365422B1/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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/16—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings
    • E01C23/20—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ
    • E01C23/22—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
    • B05B7/28—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid
    • B05B7/32—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the fed liquid or other fluent material being under pressure

Definitions

  • the invention relates to a process for bringing together a basic liquid product and a hardener in order to produce a product with rapid hardening.
  • paint distribution methods are known, in particular using a so-called “airless” circuit, mainly comprising a motor, driving at least one pump expelling the paint contained in a tank by a circuit. leading to a spray nozzle on the ground.
  • airless circuit mainly comprising a motor, driving at least one pump expelling the paint contained in a tank by a circuit. leading to a spray nozzle on the ground.
  • the motor driving the paint pump can be of any known type and for example consist of a hydraulic motor supplied by a hydraulic circuit comprising a variable flow pump taking oil from a reservoir to lead it to the hydraulic motor after passing through a connection to a safety valve then by a pressure reducer / regulator and possibly a flow reducer avoiding runaway motor and / or a flowmeter, for example connected to a computer, depending on the ratio of the two circuits to determine the paint flow rate.
  • the oil pump is itself driven by any known means such as a heat engine.
  • All of these means are generally mounted on the chassis of a vehicle.
  • the characteristics of the nozzle and its height above the ground determine the width of the paint deposit.
  • the nozzle flow rate and the vehicle advance speed determine the thickness of the paint layer deposited.
  • the vehicle generally carries a charge distributor such as retroreflective microbeads and / or sand.
  • this hardener is in the form of a powder distributed in the manner or even jointly with the fillers.
  • This method of bringing together the base product and the hardener does not allow a uniform mixing, and therefore a drying, of the paint.
  • the main circuit and the secondary circuit both lead to the same mixer supplying the spray nozzle.
  • They can also be powered by the same hydraulic pump.
  • the corresponding installation may not, however, be suitable for bringing a liquid product and a liquid hardener into contact with one another in order to obtain a product which hardens as quickly as is desirable for a road paint and for example hardens approximately in one minute per free air at 20 ° celsius or in thirty seconds sheltered from the air.
  • the proportions of hardener relative to the base being very low and for example only 1 to 2%, the flow rate of the circuit of the hardener would be low and its low speed and the constancy of the pressure that the pump would communicate to the hardener would lead quickly the liquid and solid parts of it to separate from each other and make this hardener unusable.
  • a result which the invention aims to obtain is a method of bringing together a base and a hardener which ensures uniform mixing of the product obtained and which does not affect the colors in which this product appears.
  • the invention aims to obtain a process which ensures that the distribution means cannot become clogged and that the hardener will remain usable for a very long time.
  • the subject of the invention is a method of the aforementioned type, according to which method, the secondary tank is supplied with liquid hardener which the circuit of the secondary product leads to the mixer which mixes it with the base before driving the mixture to the spray nozzle, and at the end of spraying, the arrival of the base and the hardener is interrupted at the mixer and a draining and cleaning cycle is initiated, during which the draining and cleaning cycle, the return of the hardener to its reservoir is controlled so as to recycle it, this process being in particular characterized in that: - as soon as the spraying is interrupted, a delay circuit is activated, set for a duration between a zero value and a value at least slightly less than the curing time in the absence of air, - at the end of the predetermined duration, with the help of this timing circuit, a signal is transmitted using which: .
  • the supply of the base (1) and the hardener to the mixer is interrupted and .
  • the emptying and cleaning cycle is started, comprising in particular alternately, washing phases with at least one solvent and rinsing phases, during which cleaning cycle, the above-mentioned return of the hardener to its tank is controlled so as to recycle it .
  • the installation mainly comprises a basic circuit 4 with in particular a motor 5 driving at least one pump 6 expelling the base 1 contained in a reservoir 7 in said circuit 4 leading to a nozzle 8 for spraying on the ground 9.
  • a valve P1 Downstream of the nozzle 8 is provided a valve P1 controlled by circuits 35, 36 and making it possible to interrupt the spraying.
  • the motor 5 driving the base pump 4 consists, for example, of a hydraulic motor supplied by a hydraulic circuit 10 comprising its hydraulic pump 11 with variable flow taking oil 12 from a reservoir 13 to drive it to the hydraulic motor 5 after passage by a connection to a safety valve 14 then by a reducer of pressure 15 and optionally a flow reducer 16, avoiding the runaway of the engine, and / or a flow meter 17 for example connected to a computer 18 with microprocessor.
  • the oil pump is itself driven by a motor 19, for example an internal combustion engine.
  • All of these means are generally carried by a vehicle chassis (not shown).
  • the installation can conventionally comprise at least one distributor (not shown) of charges such as retroreflective microbeads and / or sand.
  • the installation may also include a circuit 24 for secondary product with a secondary pump 26 controlled by a secondary motor 25 expelling the second product contained in a secondary tank 27 by the circuit 24 of the secondary product.
  • the circuit 4 of the main product and the circuit 24 of the secondary product both lead to the same mixer 21 supplying the spray nozzle 8 under the control of the controlled valve P1.
  • the two pumps 6, 26 then obviously have flow rates adjusted to respect the proportions of the mixture to be produced and the main hydraulic circuit 10 has its action synchronized with that of a secondary hydraulic circuit 20.
  • This secondary hydraulic circuit 20 for example the main hydraulic circuit 10, passes through a pressure reducer 22 or even through a flow reducer 23 avoiding the runaway of the engine 25 and / or a flow meter 28.
  • the secondary tank 27 is supplied with liquid hardener 2 which the secondary product circuit 24 leads to the mixer 21 which mixes it at the base 1 before driving the mixture to the spray nozzle 8, - as soon as the spraying is interrupted, a delay circuit activated for a duration between a zero value and a value at least slightly less than the curing time of the mixture protected from air is activated, - at the end of the predetermined duration, using this timing circuit: .
  • a signal is emitted with the aid of which the arrival of the base 1 and the hardener 2 is interrupted at the mixer 21 and . an emptying and cleaning cycle is initiated including in particular alternating, washing phases with at least one solvent and rinsing phases.
  • the hardener is brought back upstream of the mixer to its tank so as to recycle it.
  • the flow rate of the secondary product circuit 24 does not need to be maintained in the proportions, relative to the flow rate of the primary circuit, necessary for mixing also to accelerate the circulation of the hardener and therefore recycling, according to a Another characteristic of the invention, the movement of the motor 25 controlling the secondary pump 26 ensuring the circulation of the hardener is accelerated.
  • a branch 30 is established and on at least one of the sections which form this branch 30 and the part 29 of the circuit bypassed by this branch, the flow is regulated so that in the bypass 30, the flow is greater than in the part 29 of the circuit 20 bypassed by this bypass 30 and at the time of recycling, we pass the hydraulic flow of the secondary circuit by the bypass while during mixing we pass the flow of the secondary hydraulic circuit through part 29 of the secondary circuit which was bypassed by the bypass.
  • the presence of the base and the hardener at the top of the mixer is monitored and, in the absence of at least one of them, the feeding of the mixing head is prohibited.
  • the installation comprises: - controlled valves P2, P3 at the inlet to the mixer 21 of the base 4 circuits 1 and 24 of hardener, - circuits 31, 32 for supplying the products used during the different phases of the cleaning cycle, which circuits 31, 32 are connected at the head of the mixer 21, downstream of the controlled valves P2, P3 of circuits 4 and 24 basic 1 and hardener 2, - controlled valves P4, P5 controlling the arrival at the top of the mixer of cleaning products through their circuits 31, 32, - connected at the outlet of the mixer, upstream of the controlled valve P1 controlling the spraying, a circuit 33 for evacuating the products contained in the mixer, leading to a tank 34 collecting these products such as the solvent and hardener mixtures, a controlled valve P6 controlling the evacuation to the reservoir 34 of the products contained in the mixer through their circuit 33,
  • circuits 35, 36 for controlling the valve P1 controlling the spraying a timing circuit 37 on the one hand, provided with means 38 for adjusting between a zero duration and a duration at least slightly less than that necessary for hardening of the mixture away from air and, on the other hand, emitting a signal at the end of this period, - a circuit 39, 40 which upon receipt of this signal controls the closing of the controlled valves P2, P3 arriving at the mixer of the base 1 and the hardener 2 and starts a draining and cleaning cycle comprising alternating washing phases with at least one solvent and rinsing phases.
  • the installation further comprises: a recycling pipe 54 of the hardener 2 connected to the circuit 24 of the hardener 2 upstream of the controlled valve P2 controlling the arrival of the hardener 2 at the mixer 21, which recycling pipe 54 returns to the secondary tank 27 of the hardener, - interposed on this recycling pipe 54, a controlled valve P7 controlling the return of the hardener 2 to its reservoir 27.
  • a recycling pipe 54 of the hardener 2 connected to the circuit 24 of the hardener 2 upstream of the controlled valve P2 controlling the arrival of the hardener 2 at the mixer 21, which recycling pipe 54 returns to the secondary tank 27 of the hardener, - interposed on this recycling pipe 54, a controlled valve P7 controlling the return of the hardener 2 to its reservoir 27.
  • a branch 30 is established and on at least one of the sections that form this branch 30 and the part 29 of the circuit bypassed by this branch , a flow regulator 44, 45 is inserted so that in the bypass 30, the flow is greater than in the part 29 of the circuit 20 bypassed by this bypass 30 and at the head of the bypass and the bypassed part, we interpose a distributor 50 directing the oil to one or other of the sections 29, 30 namely at the time of recycling, the flow of the secondary circuit is passed through the bypass 30 while during mixing the flow of the secondary hydraulic circuit by part 29 of the secondary circuit which was bypassed by bypass 30.
  • the installation also comprises means for monitoring the presence of the base and the hardener at the top of the mixer and means preventing the supply of the mixer in the event of a fault in at least one of these products.
  • the cycle takes place as follows: - in the initial state, the valve P7 of the recycling circuit 54 is open while all the other valves P1 to P6 are closed, - next, the mixer 21 is put under pressure by opening the valves P2, P3 supplying the base 1 and the hardener 2 while the other valves are closed, - then starts the application by opening the spraying valve P1 and, - as soon as the spraying valve P1 closes during the preset time, the delay circuit starts the rinsing cycle: .
  • valves P2, P3 supplying the base and the hardener and the spraying valve P1 are closed while the other valves P4 to P7 are open, - then a chemical rinse during which only the valves P4, P5 for supplying the cleaning agents and the valve P7 for recycling are open.
  • the rinsing can then be repeated several times before a final rinsing during which the P6 valve for discharging the product contained in the mixer is opened, - Finally, the rinsing is completed by closing the aforementioned valves except for that of recycling P7 to return to the initial state.
  • the chemical rinsing preferably takes place for a short time, for example five seconds, followed by a period of soaking with the solvent also of the order of five seconds, this repeated several times and for example between one to twelve times.
  • all of the controlled valves are provided with a double control, one main electric, the other spare tire.
  • the mixer 21 advantageously comprises a first mixer 41 of the so-called “whorl” type communicating to the products successive accelerations and braking promoting their mixing at the outlet of which is connected a flexible pipe 42 for connection to a second mixer 43 of the static type called “divider” which, by dividing the flow, perfects the mixture.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)
  • Accessories For Mixers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
EP89402866A 1988-10-18 1989-10-17 Verfahren zur Zusammensetzung eines flüssigen Grundprodukts und eines Härters zum Erreichen eines schnellhärtenden Produkts, Mittel zum Ausführen des Verfahrens und Vorrichtung, versehen mit diesen Mitteln Expired - Lifetime EP0365422B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89402866T ATE84335T1 (de) 1988-10-18 1989-10-17 Verfahren zur zusammensetzung eines fluessigen grundprodukts und eines haerters zum erreichen eines schnellhaertenden produkts, mittel zum ausfuehren des verfahrens und vorrichtung, versehen mit diesen mitteln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8814215 1988-10-18
FR8814215A FR2637820B1 (fr) 1988-10-18 1988-10-18 Procede de mise en presence d'un produit liquide de base et d'un durcisseur en vue de realiser un produit a durcissement rapide, moyens en vue de la mise en oeuvre de ce procede et installation pourvue de ces moyens

Publications (2)

Publication Number Publication Date
EP0365422A1 true EP0365422A1 (de) 1990-04-25
EP0365422B1 EP0365422B1 (de) 1993-01-07

Family

ID=9371440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402866A Expired - Lifetime EP0365422B1 (de) 1988-10-18 1989-10-17 Verfahren zur Zusammensetzung eines flüssigen Grundprodukts und eines Härters zum Erreichen eines schnellhärtenden Produkts, Mittel zum Ausführen des Verfahrens und Vorrichtung, versehen mit diesen Mitteln

Country Status (4)

Country Link
US (1) US5126173A (de)
EP (1) EP0365422B1 (de)
AT (1) ATE84335T1 (de)
FR (1) FR2637820B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0375263A2 (de) * 1988-12-19 1990-06-27 Philip Morris Products Inc. Vorrichtung und Verfahren zur Reinigung vor Ort und Inbetriebnahme einer Anordnung von Düsen
CN103526683A (zh) * 2013-11-01 2014-01-22 山东路美交通设施有限公司 一种自行走双组份外混标线设备

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413249A1 (de) * 1994-04-16 1995-10-19 Gerhard Cammann Verfahren zum Aufspritzen von aus Farbmengen zusammengesetzten Farbmischungen auf Unterlagen, insbesondere von aus mehreren Komponenten zusammengesetzten Farben, und Gerät zur Durchführung des Verfahrens
DK172995B1 (da) * 1997-05-05 1999-11-01 Martin Vestergaard Blandingsapparat til udsprøjtning af en væskeblanding
US8014885B2 (en) * 1998-12-23 2011-09-06 Microblend Technologies, Inc. Mobile paint system utilizing slider attribute prompts and reflectance memory storage
US7097734B2 (en) * 2001-05-16 2006-08-29 Hill David A System and method for forming wood products
US7427424B2 (en) * 2003-08-07 2008-09-23 Hill David A Systems and methods of bonding materials
DE10358646A1 (de) * 2003-12-15 2005-07-14 Dürr Systems GmbH Ventilanordnung zum Mischen eines Mehrkomponenten-Lacks und zugehöriges Betriebsverfahren
CH701245B1 (de) * 2009-06-11 2013-05-31 Stefan Schonert Anlage für das Befüllen von Auskleidungsschläuchen.
CN102535311B (zh) * 2011-12-21 2014-12-17 山西华路祥交通科技有限公司 双组分或多组分热固性粘结材料混合洒布设备控制系统
US11148161B2 (en) * 2018-07-27 2021-10-19 Avant-Garde Ip Llc Height adjustment system for one or more spray guns used in a line striper
US11192130B2 (en) 2019-12-06 2021-12-07 Waterblasting, Llc Thermoplastic extrusion markings
CN111974600A (zh) * 2020-07-17 2020-11-24 重庆海浦洛自动化科技有限公司 一种管路可清洗的输调漆系统及其管路清洗方法

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE2650405A1 (de) * 1976-11-03 1978-05-18 Reinhardt Gmbh & Co Technik Zweikomponenten-dosiereinrichtung
EP0045536A1 (de) * 1980-08-04 1982-02-10 Manfred Berweger Vorrichtung zum Abgeben mehrerer Fluid-Komponenten
US4529127A (en) * 1983-04-25 1985-07-16 The United States Of America As Represented By The United States Department Of Energy Machine for applying a two component resin to a roadway surface
EP0169768A1 (de) * 1984-07-23 1986-01-29 Greggory S.A. Vorrichtung zum Aufbringen von Markierungslinien auf Strassen oder ähnlichen Oberflächen

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US3450092A (en) * 1965-07-08 1969-06-17 Vilbiss Co The De Color change apparatus
US4403736A (en) * 1981-11-30 1983-09-13 Ransburg Corporation Uncontaminated purge solvent recovery system
JPS61263674A (ja) * 1985-05-17 1986-11-21 Toyota Motor Corp ２液混合型塗装方法
US4809909A (en) * 1985-06-13 1989-03-07 Glas-Craft, Inc. Plural component application system
DE3865392D1 (de) * 1987-08-14 1991-11-14 Sames Sa Farbspritzanlage fuer beschichtungsprodukte, zum beispiel fuer wasserloesliche farbe.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2650405A1 (de) * 1976-11-03 1978-05-18 Reinhardt Gmbh & Co Technik Zweikomponenten-dosiereinrichtung
EP0045536A1 (de) * 1980-08-04 1982-02-10 Manfred Berweger Vorrichtung zum Abgeben mehrerer Fluid-Komponenten
US4529127A (en) * 1983-04-25 1985-07-16 The United States Of America As Represented By The United States Department Of Energy Machine for applying a two component resin to a roadway surface
EP0169768A1 (de) * 1984-07-23 1986-01-29 Greggory S.A. Vorrichtung zum Aufbringen von Markierungslinien auf Strassen oder ähnlichen Oberflächen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0375263A2 (de) * 1988-12-19 1990-06-27 Philip Morris Products Inc. Vorrichtung und Verfahren zur Reinigung vor Ort und Inbetriebnahme einer Anordnung von Düsen
EP0375263A3 (de) * 1988-12-19 1991-11-06 Philip Morris Products Inc. Vorrichtung und Verfahren zur Reinigung vor Ort und Inbetriebnahme einer Anordnung von Düsen
CN103526683A (zh) * 2013-11-01 2014-01-22 山东路美交通设施有限公司 一种自行走双组份外混标线设备

Also Published As

Publication number Publication date
US5126173A (en) 1992-06-30
ATE84335T1 (de) 1993-01-15
FR2637820B1 (fr) 1991-04-26
EP0365422B1 (de) 1993-01-07
FR2637820A1 (fr) 1990-04-20

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