WO2001096005A1 - Melange de liquides sous pression - Google Patents

Melange de liquides sous pression Download PDF

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Publication number
WO2001096005A1
WO2001096005A1 PCT/GB2001/002535 GB0102535W WO0196005A1 WO 2001096005 A1 WO2001096005 A1 WO 2001096005A1 GB 0102535 W GB0102535 W GB 0102535W WO 0196005 A1 WO0196005 A1 WO 0196005A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
vessel
pressure
valve
port
Prior art date
Application number
PCT/GB2001/002535
Other languages
English (en)
Inventor
Michael Robert Needham Palmer
David Marcus Palmer
John William Leach
Original Assignee
Supaturf Products 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 Supaturf Products Limited filed Critical Supaturf Products Limited
Priority to AU2001262546A priority Critical patent/AU2001262546A1/en
Priority to GB0228456A priority patent/GB2379174A/en
Publication of WO2001096005A1 publication Critical patent/WO2001096005A1/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
    • E01C23/16—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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/49—Mixing systems, i.e. flow charts or diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/315—Injector mixers in conduits or tubes through which the main component flows wherein a difference of pressure at different points of the conduit causes introduction of the additional component into the main component
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/712—Feed mechanisms for feeding fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet
    • B05B12/1427—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet a condition of a first liquid or other fluent material in a first supply line controlling a condition of a second one in a second supply line
    • B05B12/1436—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet a condition of a first liquid or other fluent material in a first supply line controlling a condition of a second one in a second supply line the controlling condition of the first liquid or other fluent material in the first supply line being its flow rate or its pressure
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/047—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/502—Vehicle-mounted mixing devices

Definitions

  • the invention relates to an apparatus and method for mixing two liquids under pressure. More specifically the invention relates to an apparatus and method for marking lines using a mixed liquid supplied under pressure on roads, sports fields, or the like.
  • a line-marking machine is a hand driven or motor driven vehicle arranged to dispense a mixture of paint and water via an outlet to the substrate.
  • the paint and water are pre- mixed on site to the intended concentration by the operator.
  • the emulsion formed is then pressurised by passing it through a pump, and then it is sprayed onto the substrate through a spray head. It is necessary to rely on the operator to ensure that the paint is mixed to the correct ratio, as well as to clean the machinery thoroughly after use to prevent residual paint from blocking the pump. This problem is particularly acute because the pump can be blocked if paint is left inside, even over a lunch break, as the mixed suspension or emulsion has a short useful life so the solids tend to fall out of emulsion quickly.
  • FR-A-2424521 discloses an apparatus for mixing first and second liquids, the apparatus comprising a first vessel arranged to contain the first liquid and a second vessel arranged to contain the second liquid, pumping means arranged to pump the first liquid to the first vessel and pressure-transmitting means arranged to transmit pressure from the first to the second liquid, whereby the second liquid is not passed through the pumping means but is impelled with the first liquid to an outlet port of the apparatus.
  • the apparatus of the present invention is characterised in that the pressure-transmitting means comprises an air pocket which, in use, is maintained within the apparatus.
  • air pocket is not restricted to "air” as the gas. Indeed, it may be desirable, in certain circumstances, to employ non-reactive gas, for example, if either the first or second liquids are oxidisable.
  • This feature enables the second vessel to be easily re-filled with second liquid (e.g. paint).
  • second liquid e.g. paint
  • the apparatus comprises valve means having a first condition in which the air pocket is compressed by the first liquid being pumped into the first vessel and a second condition in which the air pocket is decompressed by allowing the first liquid to flow out of the first vessel.
  • the apparatus is mounted on a hand driven or powered vehicle and arranged to dispense a mixture of water as the first liquid and paint as the second liquid.
  • the invention is not limited to this use.
  • such a method and apparatus may be useful for mixing agrochemicals such as insecticides and fertilisers prior to their application to a field, or for mixing a resin and a curing agent prior to application to a surface such as a car panel.
  • the first liquid and/or the second liquid may optionally be a mixture of materials.
  • the apparatus is powered by a single source of electrical power mounted on the vehicle. This is usually a battery pack.
  • the apparatus also has a pressure release valve for draining the first fluid back into the first vessel to decrease the pressure on the second liquid, when appropriate.
  • the apparatus is preferably operated by
  • Figure 1 is an elevation of a line-marking machine according to the invention.
  • Figure 2 is a diagram showing the operation of a further line-marking machine according to the invention.
  • the line-marking machine 1 shown in Figure 1 is a hand pushed machine comprising a basic frame having a platform 2, supported on axles having front and rear wheels 3, and a handle 4.
  • Two separate liquid containing vessels 5,6 are mounted on the platform 2.
  • the first vessel 5 is a relatively large water tank.
  • the second vessel 6 has an internal chamber 7 to securely receive a relatively smaller paint bottle 8.
  • a diaphragm pump 9, a battery pack 10, and a pressure transmitting reservoir vessel 11 are also mounted on the platform 2.
  • a spray head 12 projects from the front of the platform 2, and is connected to the two liquid containing vessels via pipelines 13 and 14.
  • FIG. 2 in which the same numerals as in Figure 1 have been used for identical components, there is shown a line-marking machine V having a five port 2-way valve 25 which is connected at port a thereof to line 16 from vessel 6 and which is connected by port b thereof to line 20 from vessel 5 and is further connected at port d thereof to an outlet on pump 9.
  • the remaining ports c and e are connected to line 19 which communicates with the air space of vessel 6.
  • the air space provides a pressure transmitting reservoir 11'.
  • the pressure transmitting reservoir 11' is not a distinct component as in the case of the line-marking machine 1, shown in Figure 1. It will be appreciated that, provided the seals between the reservoir 11 and vessel 6 are sound, and that there is no blockage in the conduit therebetween the two configurations, shown in Figures 1 and 2, are functionally equivalent.
  • valve 25 is set to a position in which port b is connected to port e and port a is connected to port d as represented by the arrows pointing upwardly and to the right.
  • Pump 9 sucks water from vessel 5 via line 20 and the flow path between ports b and e and pumps water via a flow path connecting d and a to line 16 and hence to vessel 6, thereby pressurising air in air space 11'.
  • This pressure is transmitted to paint bottle 8 which has flexible walls and is located within air space 11'. Hence paint flows out of paint bottle 8 via line 14 and reaches line 18.
  • valve 25 Besides the flow from port d to port a in this position of valve 25 there is also a flow from port d to line 13 and hence to line 18, resulting in mixing of the paint and water at junction P.
  • the resulting mixture flows through line 18 to spray-head 12 under the control of an electrically operated solenoid valve 17.
  • the mixing ratio of paint and water is adjusted by a flow control valve 26 in line 13.
  • the valve 25 When the paint in paint bottle 8 is exhausted and it is desired to refill the paint bottle, the valve 25 is set to its other position in which port b is connected to port d and port a is connected to port c, as represented by the arrows pointing upwardly to the right. In this position, pump 9 sucks water from vessel.6 via line 16 and the flow path connected to ports a and c and expels the water via the flow path connected to ports b and d along line 20 to vessel 5.
  • valve 25 In the "reverse flow" position of valve 25 (flow paths represented by upward and rightward- pointing arrows) any excess pressure in vessel 6 is transmitted by line 16, ports a and c and line 19 to vessel 5, via a non-return valve 24 in line 19. Vessel 5 has a vent 21 to the atmosphere. The pressure in vessel 6 is monitored by a gauge 15.
  • Non-return valves 22 and 23 in paint line 14 and water line 13 prevent contamination of the paint by reverse flow of water and water by reverse flow of paint respectively.
  • the paint mixing point (P) is selected to be the shortest possible distance from the exit point of the spray head 12 to minimise the amount of pipework containing mixed paint.
  • the machine 1 , V is capable of spraying 100 per cent water or 100 per cent paint, or any desired ratio in between.
  • This system is self-regulating as the pressure of the water is directly proportional to the pressure on the paint.
  • a fluctuation in the voltage at the pump 9 may temporarily raise or lower the pressure of the water, but as water pressure in the vessel 11 , 11 ' determines the pressure on the paint, the pressure increase or decrease is adjusted correspondingly.
  • the apparatus has several advantages. Paint contamination of the tank 5, pump 9, and associated pipework is reduced or eliminated. Washing and cleaning may be done in a matter of seconds, not minutes.
  • the ratio of paint-to-water can be adjusted by the operator whilst marking to prevent the need to over-mark at a later stage if a greater concentration of paint is required at specific points.
  • Several lines may be sprayed at once, without loss of pressure across the several nozzles. Lines may be sprayed in different colours or the same colour to different shades.
  • the invention is not limited to the embodiment shown.
  • the positioning of the components on the platform 2 may differ, and indeed, the machine 1 , 1' may be constructed from a single compartmentalised tank having recesses for the components.
  • the spray device may be a hand lance. All components may be replaced by equivalents, for example, the diaphragm pump 9 may be replaced by an alternative pump.
  • the vessel 6 may be shaped internally to receive any suitable paint container.
  • An alarm may be fitted to the machine 1 , 1 ' to warn the operator if the pressure in the pressure transmitting vessel 11 , 11' is too high.
  • the machine may be used to dispense any mixture of liquids where mutual ratios are important.
  • the charging of the pressure transmitting vessel 11 , 11' may be achieved using an external pressure source or a provided pressure source that is independent of the primary pump 9.
  • the first liquid in vessel 8 may be a pesticide or herbicide or, more generally, could be any liquid which is not suitable for being pumped directly.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)

Abstract

La présente invention concerne un appareil de mélange de peinture qui comprend une bouteille (8) de peinture souple tenue dans une poche d'air (11) dans un récipient (6) étanche à l'air dans lequel l'eau peut être pompée à partir d'une pompe (9) via une vanne (e) bidirectionnelle à orifice en S. Dans une position de cette vanne, l'eau en provenance d'un réservoir (20) de retenue est pompée dans le récipient (6) et la peinture pressurisée se mélange avec un flux distinct d'eau au niveau d'une jonction (P) située immédiatement en amont d'une tête de pulvérisation (12). Dans l'autre position de cette vanne, l'eau est pompé en sens inverse.
PCT/GB2001/002535 2000-06-12 2001-06-08 Melange de liquides sous pression WO2001096005A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001262546A AU2001262546A1 (en) 2000-06-12 2001-06-08 Mixing liquids under pressure
GB0228456A GB2379174A (en) 2000-06-12 2001-06-08 Mixing liquids under pressure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0014442.8 2000-06-12
GBGB0014442.8A GB0014442D0 (en) 2000-06-12 2000-06-12 Mixing liquids under pressure

Publications (1)

Publication Number Publication Date
WO2001096005A1 true WO2001096005A1 (fr) 2001-12-20

Family

ID=9893564

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/002535 WO2001096005A1 (fr) 2000-06-12 2001-06-08 Melange de liquides sous pression

Country Status (3)

Country Link
AU (1) AU2001262546A1 (fr)
GB (3) GB0014442D0 (fr)
WO (1) WO2001096005A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3045998B1 (fr) 2006-02-09 2017-09-13 Beamrider Limited Chariot et procédé de traçage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111022105B (zh) * 2019-12-11 2021-10-26 江西维尔安石环保科技有限公司 生物液膜综合矿山抑尘系统及装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1028093A (fr) * 1949-10-17 1953-05-19 Total Foerstner & Co Procédé et dispositif pour mélanger un liquide sans pression avec un autre liquide se trouvant sous pression
DE1023597B (de) * 1951-04-26 1958-01-30 Dopslaff Julius Kg Mischvorrichtung fuer verschiedene Fluessigkeiten bzw. Fluessigkeiten mit Gasen
FR1422705A (fr) * 1965-01-27 1965-12-24 Dorman Sprayer Company Ltd Perfectionnements à un appareil pulvérisateur
FR2424521A1 (fr) * 1978-02-27 1979-11-23 Legeret Jean Michel Procede et appareil de dosage en continu
DE3703366A1 (de) * 1987-02-04 1988-08-18 Wolf Geraete Gmbh Fahrbares linienmarkiergeraet
WO1989008390A1 (fr) * 1988-03-17 1989-09-21 National Research Development Corporation Preparation de melanges de liquides
US5016817A (en) * 1989-11-08 1991-05-21 University Of Georgia Research Foundation, Inc. Pesticide spraying device and method
EP0465336A1 (fr) * 1990-07-03 1992-01-08 Claude-Jean Desvigne Appareil doseur de produits liquides pour engins agricoles
GB2257473A (en) * 1991-06-26 1993-01-13 Supaturf Prod Ltd Dispensing system for a liquid mixture.
EP0527027A1 (fr) * 1991-08-07 1993-02-10 Hunting Engineering Limited Distributeur de liquide
DE19530968A1 (de) * 1995-08-23 1997-02-27 Quiel Gmbh Sondermaschinen Dosiereinrichtung
WO1999009256A1 (fr) * 1997-08-18 1999-02-25 Iain Peter Mcguffie Appareil de marquage de lignes

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1028093A (fr) * 1949-10-17 1953-05-19 Total Foerstner & Co Procédé et dispositif pour mélanger un liquide sans pression avec un autre liquide se trouvant sous pression
DE1023597B (de) * 1951-04-26 1958-01-30 Dopslaff Julius Kg Mischvorrichtung fuer verschiedene Fluessigkeiten bzw. Fluessigkeiten mit Gasen
FR1422705A (fr) * 1965-01-27 1965-12-24 Dorman Sprayer Company Ltd Perfectionnements à un appareil pulvérisateur
FR2424521A1 (fr) * 1978-02-27 1979-11-23 Legeret Jean Michel Procede et appareil de dosage en continu
DE3703366A1 (de) * 1987-02-04 1988-08-18 Wolf Geraete Gmbh Fahrbares linienmarkiergeraet
WO1989008390A1 (fr) * 1988-03-17 1989-09-21 National Research Development Corporation Preparation de melanges de liquides
US5016817A (en) * 1989-11-08 1991-05-21 University Of Georgia Research Foundation, Inc. Pesticide spraying device and method
EP0465336A1 (fr) * 1990-07-03 1992-01-08 Claude-Jean Desvigne Appareil doseur de produits liquides pour engins agricoles
GB2257473A (en) * 1991-06-26 1993-01-13 Supaturf Prod Ltd Dispensing system for a liquid mixture.
EP0527027A1 (fr) * 1991-08-07 1993-02-10 Hunting Engineering Limited Distributeur de liquide
DE19530968A1 (de) * 1995-08-23 1997-02-27 Quiel Gmbh Sondermaschinen Dosiereinrichtung
WO1999009256A1 (fr) * 1997-08-18 1999-02-25 Iain Peter Mcguffie Appareil de marquage de lignes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3045998B1 (fr) 2006-02-09 2017-09-13 Beamrider Limited Chariot et procédé de traçage

Also Published As

Publication number Publication date
GB2379174A (en) 2003-03-05
GB0228456D0 (en) 2003-01-08
GB0014442D0 (en) 2000-08-09
AU2001262546A1 (en) 2001-12-24
GB0114020D0 (en) 2001-08-01

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