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WO2003035269A1 - Procede, systeme et equipement d'application de revetements sur la paroi de tunnels, conduites, tubes et analogues - Google Patents

Procede, systeme et equipement d'application de revetements sur la paroi de tunnels, conduites, tubes et analogues Download PDF

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Publication number
WO2003035269A1
WO2003035269A1 PCT/NL2002/000674 NL0200674W WO03035269A1 WO 2003035269 A1 WO2003035269 A1 WO 2003035269A1 NL 0200674 W NL0200674 W NL 0200674W WO 03035269 A1 WO03035269 A1 WO 03035269A1
Authority
WO
WIPO (PCT)
Prior art keywords
spray head
components
component
tunnel
wall
Prior art date
Application number
PCT/NL2002/000674
Other languages
English (en)
Inventor
Willem Brinkhuis
Original Assignee
Willem Brinkhuis
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 Willem Brinkhuis filed Critical Willem Brinkhuis
Publication of WO2003035269A1 publication Critical patent/WO2003035269A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/001—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements incorporating means for heating or cooling, e.g. the material to be sprayed
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member characterised by the rotating member
    • B05B3/1014—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member
    • B05B3/1057—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member with at least two outlets, other than gas and cleaning fluid outlets, for discharging, selectively or not, different or identical liquids or other fluent materials on the rotating element

Definitions

  • the invention is related to a process for the treatment of walls of tunnels, pipes, tubes or other elongated spaces, involving the coating of the wall after a possible pre- treatment.
  • the invention also concerns a system that enables this process to be used as well as specific equipment that can be used within this system.
  • a first prior art apparatus is described in US3233580.
  • This specification describes a spray head comprising an internal space in which two components are received and become mixed. The mixture is guided into a second internal space having a slanted wall along which the mixture is guided to an edge from which the mixture is hurled in approximately diametrical direction to the wall to be coated. Because the mixing is done in an internal chamber this spray head is definitely not suited for spraying fast reacting components.
  • a second prior art apparatus is described in US5018954.
  • the spray head described therein comprises one approximately disk shaped chamber made of two cone-shaped parts directed towards each other and defining an open slit at their diametrically largest boundary.
  • the embodiment illustrated in figure 6 is destined for handling two different components of a coating.
  • Each component is delivered onto the inner wall of one of the cone shaped parts.
  • both cone shaped parts will rotate along the same central axis and under the rotational forces each component will move in the diametrically outside direction towards said split where both compo- nents will become mixed and from where the mixture is hurled away. No measures are taken to prevent drops of the one component being splashed onto the other wall of the chamber, which would result into unwanted curing of material.
  • the objects of the invention are to indicate what requirements are to be met by equipment for the treatment of tunnel walls and the like, and how such equipment is to be designed to provide inner walls of tunnels, tubes, pipes and the like with a coating made of a quick-curing, two-or-more-component synthetic without the problems identified above occurring.
  • a spray head for spraying a coating onto the inner wall of a tunnel, pipe, tube or other elongated space of relatively limited diameter, which spray head has a central shaft that runs in longitudinal direction during operation and can be rotated by a driving motor.
  • the spray head is according to the invention characterised in that, for each component, the nozzle has a mainly diametrically extending acceleration room, whose diametrically smallest shaft-oriented inner side is connected, through a known coupling, to a component supply channel, and whose diametrically largest outer side is open, at least partially, forming a discharge gap through which the relevant component is flung out in approximate diametric direction during operation.
  • the different components are flung out from approximately parallel, adjoining gaps in the direction of the wall to be coated.
  • the components are mixed, and the curing process will start. This curing happens so quickly that no or hardly any 'sags' occur, and a smooth hard coating is obtained.
  • the driving motor can be e.g. a hydraulic motor, an air motor or an electric motor (or any other suitable motor co-operating e.g. with a gear box to achieve a high rate of revolution.
  • each acceleration room the respective component will be guided and accelerated along the walls of said room.
  • the respective wall extends not perpendicular to the central shaft but with an angle somewhat smaller then 90 degrees thereto.
  • the component is subdued to a small force directed to the wall so that the component is more or less pressed against said wall. And will move as a thin film along said wall in diametrically outside direction.
  • the component will move along one specific wall of the acceleration room. Than at least that wall has to be non-perpendicular to the driving shaft. It is thereby further preferred that the design of the shaft orientated inner side of each room is such that the component entering the room will be guided mainly to said non perpendicular wall.
  • the spray head which according to the invention is characterised in that the spray head has a flat, plate- ring-shaped target plate, which is located on the fling-out route of each of the compo- nents, and whose inner side makes an angle to the axial direction such that the components end up on this target plate, and are moved to the edge of the target plate by the centrifugal force, whereby the components are mixed and flung out over the edge of the target plate in radial direction.
  • the components are not mixed until they have left the spraying room.
  • the risk of obstructions occurring in the spraying rooms due to materials curing is therefore very small. Mixing is stimulated by the present target plate. As long as the material on the target plate is in motion, there is little risk of obstruction or adhesion of curing material. Yet, to minimise this risk, it is preferred that at least the inner side of the target plate is made of a material that has poor adhesive characteristics, or is lined with such material.
  • suitable materials are polyethylene, quartz oxide, alumimum oxide, nylon, polyurea, teflon and PEEK, of which the latter three materials are preferred. Further preferred is the use of carbon reinforced PEEK as construction material for manufacturing the whole spray head.
  • the component with the highest liquidity is guided through the head such that it will move across the target plate longer, and that the component with the lowest liquidity is guided through the spray head such that it will move across the target plate shorter. This ensures that the longest route across the target plate is taken by components which, by nature, flow across the plate more easily, while materials with lower liquidity will follow a shorter or the shortest route across the plate.
  • control valves for regulating the flow of each of the components, with these valves located near the reservoirs. This may function properly if use is made of components that cure only slowly when being mixed. A component flow in the spray head can be stopped and started only with some delay, and often gradually rather than instantly, as there will have to be some pressure increase or decrease in the long lines between the reservoirs and the spray head. For quick-curing materials, the response time of such control valve is therefore much too long for proper control due to the hose between spray head and valve.
  • a spray head control system which according to the invention is characterised in that, for each supply line, the spray head is equipped with a flow meter and a control valve, with each flow meter transmitting a signal to a processor that compares the signal with a set value, which comparison produces a control signal for the control of the relevant flow control valve.
  • the place of measurement is now in the immediate vicinity of the place of control, so that any influence of in- between hoses, tubes and the like is eliminated.
  • a temperature meter is coupled to the relevant supply conduit, and that all temperature meters transmit signals to the processor which, based on those signals, corrects the control signals to the control valves. With that, it is assumed that the viscosity of the various components depends on the temperature, and that the temperature must therefore be involved in flow control.
  • the supply conduits have heating means that ensure that each of the components in the supply conduits has a preset temperature on entering the relevant spraying room. Given the relatively high flow rate of the components in the spray head itself, heating means in the spray head itself will be effective only to a very limited extent.
  • the heating means can be controlled by the processor based on the temperature signals received.
  • the functions may be combined in one single valve.
  • control circuits are already known from the prior art. A number of examples will be discussed shortly.
  • US4294612 describes a system for applying foam insulation.
  • the foam is manu- factured by bringing together a resin and a foaming agent within the mixing chamber of a spraying gun.
  • the resin is stored in a first reservoir while the foaming agent is stored in a second reservoir.
  • the materials are drawn from their reservoirs by means of a pump set, which moves the materials under pressure via flexible hoses into the spraying gun.
  • the hoses are relatively long, (see column 2, lines 51-63).
  • the sensors and valves of the control system are installed (in material flow direction) behind the reservoirs but before the relatively long flexible hoses. That implies that these sensors and valves are certainly not installed within the spraying head or directly preceding the spraying head.
  • EP0326510 describes a system for transporting two components from respective reservoirs to a spraying head in which the components become mixed. Coupled pumps are used to drive the components from the reservoirs through flexible hoses into the spraying head.
  • the only control means illustrated in figure 2 is a temperature sensor 103, which is mounted on or in said hoses (see column 5, lines 14-15). It is clear that this sensor is certainly not installed within the spraying head or directly preceding the spraying head.
  • JP2000153184 describes an apparatus for applying a multi-color coating. Controllers 9 are used to regulate the flow of each of the coating components. As will be clear from the figures and from the English abstract "the controllers are set in the respective supply paths" and therefor not within the spraying head or directly preceding the spraying head.
  • US2001/0000611 describes a two channel system whereby pressure sensors 58, 60 and flow meters 66, 68 are build into the flow channels and certainly not within the spraying head or directly preceding the spraying head.
  • the spray head is not an independently functioning unit but is part of a system.
  • the invention therefore provides for a system that includes :-
  • the invention provides for a system that includes :- - reservoirs for storing the coating components;
  • a spray head for applying the coating onto the tunnel wall; conduits between the reservoirs and the spray head for supplying the coating from the reservoirs to the spray head;
  • the spray head and the control system, as invented, can be applied within several processes.
  • a first example of such processes can be described as follows: process for the repair and improvement of walls of tunnels, pipes, tubes or other elongated spaces of relatively limited diameter, featuring the following steps :- al cleaning of the wall by spraying a suitable cleaning agent against the wall using a suitable nozzle; a2 removal of loosened dirt and cleaning agent by spraying water against the wall using a suitable spray gun; a3 application of a layer of textile or woven metal or similar material onto, as a minimum, those spots where the wall is damaged (cracks, loose bricks, fallen-out sections and the like); a4 next, application of a suitable coating onto the wall using a suitable spray head.
  • any water and dirt accumulating on the tunnel bottom will be sucked away during and after step a2.
  • a break between the steps a2 and a3 it would be preferable to insert a break between the steps a2 and a3 to allow the wall to dry sufficiently.
  • other actions may be taken to dry the tunnel wall.
  • Another example of a process can be described as: process for the repair and improvement of walls of tunnels, pipes, tubes or other elongated spaces of relatively limited diameter, featuring the following steps:- bl application of a layer of textile, metal or similar material onto, as a minimum, those spots where the wall is damaged (cracks, loose bricks, fallen-out sections and the like); b2 next, application of a suitable coating onto the wall using a suitable spray head.
  • step a3 or bl is carried out by a suitable robot
  • Figure 1 shows a cross-section of the spray head according to the invention.
  • Figure 2 shows a diagram of a control system to be used with the spay head according to the invention.
  • Figure 3 shows an other embodiment of a spray head according to the invention.
  • FIG. 1 shows a spray head that may be used within the scope of the invention.
  • the spray head is made up of the three form parts 11, 12 and 13, which are fixed onto each other and onto the shaft 14 using suitable fasteners.
  • a number of bolts 15a, 15b,... are used to fix the form parts 11, 12 and 13 onto each other whereby washers or distance bushes 9a, 9b, 9c, 9d, are used to mutually position the form parts 11, 12 and 13. It will be clear that there are many other options to bring this about.
  • the form part 11 is moved, in the way shown, onto the thinner end of the shaft 14 and, next, fastened with the nut 16.
  • the form of the parts 11, 12 and 13 has been chosen such that the parts form, in between them, the two disc-shaped spaces 17 and 18, which will be referred to below as the 'acceleration spaces'.
  • the diametrically outer end of the part 12 forms the target wall 19, the goal of which will be discussed later on.
  • the shaft 14 is coupled to the driving motor for the rotation of the shaft.
  • the components from which the material to be sprayed is to be created are located in the only diagrammatically presented reservoirs 21 and 22. From these reservoirs, the components can be supplied, via the respective lines 23 and 24, to the spray head , with the pumps 25 and 26 being used to supply the components to the spray head under a preset pressure. Near the spray head or built into the spray head you find the pressure regulators 31 and 32, one for each component.
  • the pressure gauges 29 and 30 that measure the pressure are located as closely as possible to the end of each conduit 23 and 24.
  • the signals measured by these gauges 29 and 30 are supplied to a processor (not shown in the figure), which compares the signals with preset values representing desired pressure values, and which, if the preset values are deviated from, transmits control signals to the corresponding pressure regulators 31 and 32, respectively.
  • these pressure regulators are located either as closely as possible to the spray head or within the spray head, so that the in- fluence of the remaining part of the relevant conduit 23 or 24 is minimised.
  • a flow rate detector is placed either near or in the spray head, that is the detector 33 in the conduit 23, and the detector 34 in the conduit 24.
  • the signals generated by these detectors are also supplied to the processor (not shown in the figure) for comparison with preset values. If the values are different, the processor will send control signals to the pressure-reducing valve 35 or 36, or to both valves.
  • the temperature of the components plays an appreciable role, it would be pref- erable to mount a heating element into at least the conduits 23 and 24, and to incorporate this, along with a temperature sensor in the spray head, into a thermostat circuit, allowing the conduits 23 and 24 to be maintained at a certain temperature.
  • the chambers 17 and 18 are not rectangular to the shaft 14 but extend under a certain angle in relation to the shaft 14.
  • disk shaped space should include also “saucer shaped", “basin shaped ", etc.
  • the generally disc-shaped chambers 17 and 18 have a gap on the diametrical inner side, through which gap the relevant component can enter the chamber from the relevant conduit 23 or 24.
  • the chambers are open. So, there, the components are radially flung out from the chambers towards the target plane 19, which is a part of the part 12 of the spray head. Because of the sloped embodiment of the chambers the component introduced in chamber 17 will move through the chamber mainly along the inner wall of form part 11, whereas the component introduced in chamber 18 will move through said chamber mainly along the inner wall of form part 12 This attributes to keeping both components separated even at the moment they the leave the respective chambers.
  • the components After leaving the chambers the components may become gradually mixed depending on the speed they have obtained, their consistency, their tendency to spread out, etc. In this respect it is remarked that the component will form a rather thin layer on the inner wall of part 11.
  • the motor 20 rotates with 30000 revolutions per minute and that the respective component is supplied at 6 litres per minute.
  • the diameter of the chamber is 100 mm then the thickness of the film on the chamber wall at the outer edge will be in the order of 1,5 to 2 micrometers. Whilst the radial outer sides of both chambers are close to one another, the components, having left the chambers, will yet run mainly parallel to one another until they reach the target plate 19.
  • This target plate which makes an angle to the axial direction set by the shaft 14, ensures that the flow direction of both components changes. Both components flow across the plate to the plate's axial outer edge, and will be thoroughly mixed thereby. Next, the thoroughly mixed components will be diametrically flung out - from the edge of the target plate in the direction of the wall to be coated.
  • the risk of obstruction of, for instance, the chambers 17 and 18 or the lines 23 and 24 is extremely small, if not nil.
  • the only place where cured material could occur during operation is the target plate 19.
  • Suitable materials are nylon, polyurea, teflon, and PEEK.
  • Polyurea in particular, that is maintained at an increased temperature for some time after the curing, appears to form a suitable hard smooth layer that is difficult for other materials to adhere to. If this additional processing step is not made, teflon or PEEK is preferred.
  • a preferred construction material is carbon reinforced PEEK.
  • FIG. 2 again presents diagrammatically the already designated parts which, together with the processors not yet shown, make up the control circuit.
  • the processor 37 controls the first material component, receives input signals from the pressure gauge 29 and from the flow meter 33, and sends control signals to the pressure regulator 31 and the flow regulator 35.
  • the pressure gauges 29 's signal which is representative for the input pressure Pi, is compared by the processor with the set value Ps.
  • the flow meter 33 's signal which is representative for the input flow Fi, is compared by the processor with the set value Fs. If the set values are deviated from, control signals will be calculated using an appropriate algorithm, and sent to the regulators 31 and 35.
  • the algorithm should take into account that the two regulators have an influence on each other.
  • the processor 38 controls the second material component, receives input signals from the pressure gauge 30 and from the flow meter 34, and sends control signals to the pressure regulator 32 and the flow regulator 36.
  • the pressure gauge 30's signal which is representative for the input pressure Pi, is compared by the processor with the set value Ps.
  • the flow meter 34's signal which is representative for the input flow Fi, is compared by the processor with the set value Fs. If the set values are deviated from, control signals will be calculated using an appropriate algorithm, and sent to the regulators 32 and 36.
  • the algorithm should take into account that the two regulators have an influence on each other.
  • signals relating to pressure and flow of the components need be supplied to the processor but also information on the temperature of the components, the forward speed of the spray head in axial direction, and the rotational speed of the spray head may constitute important input signals for the processors). Based on all these input signals, the pressure and flow of the components are to be controlled, it being assumed that the axial forward speed and the rotational speed of the spray head are set as fixed values, and that the component temperatures may also be considered fixed. When this information is available, an expert will have no trouble defining the required control algorithms and writing the corresponding software, so this need no further elaboration.
  • the pumps 25 and 26 only have to meet requirements as to minimum pressure needed to pump the relevant material component through the lines and deliver it to the spray head at pressure Pi, which allows the control process to function prop- erly.
  • FIG. 3 illustrates a somewhat modified embodiment of a spray head according to the invention. Those details, which are not altered in comparison with figure 1, are indicated with the same reference numbers.
  • a first difference between figures 1 and 3 is found in the shape of the target plate.
  • This plate carries in figure 3 the reference 19' and extends at a different angle to the shaft 14. Furthermore the length thereof is shorter so that both components will reside shorter on the target plate. For some components this might be preferable.
  • a second difference resides in the embodiment of the tubular section of form part 13.
  • the inner wall of said tubular section, which surrounds the shaft 14 is not smooth as in figure 1, but carries a spirally shaped ridge, indicated by reference number 13'.
  • this spirally shaped ridge rotates said ridge will have a pushing effect on the component transported through conduit 23.
  • Said component is transported by said ridge from the end of conduit 23 to the entrance of chamber 17.
  • the centrifugal forces in chamber 17 are effecting the further transport.
  • a similar ridge can be installed on the inner wall of the tubular section of form part 12 for transporting the component pumped out at the end of conduit 24.
  • a third difference resides in the position of the parts 29, 31, 33 and 35 respec- tively 30,32,34 and 36. The order is changed into 33, 35, 29, 31 respectively 34, 36, 30, 32. In many cases the flow is the more significant value to be controlled and therefore a flowmeter at the end of the conduit is preferable.
  • a fourth difference resides in the presence of two pressure reservoirs 41 and 42. From these reservoirs pressurised air or other suitable gas can be supplied to the spraying head in a similar manner as the material components are supplied.
  • the gas flow is controlled by control circuits 43 and 44 in the respective conduits 45 and 46. Just introducing air (or another gas) will enhance the movement of the components through the various sections of the spraying head.
  • the gasflow can be used to introduce particles such as grains of sand, fibre particles etc. into the head to become mixed with the respective component. It will be clear that these particles will have influence on the characteristics of the coating sprayed by the gun on the wall of the tunnel, etc.
  • adding particles to the component stream will decrease an eventual tendency of the respective component to adhere to parts of the spray head. Especially the eventual tendency of the mixed and already curing components to adhere to the target plate is reduced.
  • the specific means necessary to bring particles into the gas stream are not shown separately in the figure.
  • multiple coats can also be applied using one single spray head that is connected to the vehicle through a reciprocating mechanism.
  • the vehicle is moved through the tunnel at a preset speed while, at the same time, the spray head is axially moved in a reciprocating motion across a preset length. If the reciprocating mechanism moves the head in both directions at the same speed, the relative speed of the head in relation to the tunnel wall will strongly differ as for the reciprocating mo- tion, which would lead to the thickness of the applied coating also varying strongly. This will be undesirable in most cases.
  • the spray head will have a relatively low speed when moving in the same direction as the vehicle, and a relatively high speed when moving in opposite direction, such that in either direction the speed will be equal in relation to the wall.
  • This ensures that, irrespective of the direction of movement in relation to the wall, the sprayed-on coat will always be of equal thickness.
  • the spray head makes an oscillatory movement with small deflection in the direction of movement and reverse. The result thereof is that the coating layer will be smoother and can be applied thicker.
  • the number of layers that can thus be sprayed on top of each other depends on the actual speeds. If two layers suffice, the speeds should be selected such that, at the end of its route, the spray head, when moving in opposite direction to that of the vehicle, always reaches the point halfway the preceding route. Similar considerations apply for multiple layers on top of each other.
  • the control system can be programmed by software in such a manner that the spray head automatically applies a predefined coating thickness based on the pipe diameter as input parameter. The correct settings are deemed to»be within the competence of an expert, so they need no further explanation here.
  • a coat of sufficient thickness will also be able to span, for instance, cracks or other small irregularities or openings in the wall.
  • holes, cracks and other openings to be spanned by the coating are preferably sealed with a material that has to perform a supporting function only for a short period of time.

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  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention porte sur une tête de pulvérisation de revêtements sur la paroi intérieure de tunnels, tubes ou autres espaces tubulaires de diamètre relativement restreint. Ladite tête présente un arbre central (14) longitudinal entraîné en rotation par un moteur. Pour chacune des substances à projeter, la tête comporte une chambre d'accélération discoïde sensiblement transversale dont le côté intérieur de plus petit diamètre orienté axialement est relié par un accouplement de type usuel à un canal d'alimentation en substance, et dont le côté extérieur de plus grand diamètre est ouvert au moins partiellement de manière à former un orifice de décharge d'où la substance à projeter s'échappe violemment sensiblement radialement.
PCT/NL2002/000674 2001-10-24 2002-10-24 Procede, systeme et equipement d'application de revetements sur la paroi de tunnels, conduites, tubes et analogues WO2003035269A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1019224A NL1019224C2 (nl) 2001-10-24 2001-10-24 Werkwijze, stelsel en apparatuur voor het aanbrengen van een coating op de wand van een tunnel, pijp, buis en dergelijke.
NL1019224 2001-10-24

Publications (1)

Publication Number Publication Date
WO2003035269A1 true WO2003035269A1 (fr) 2003-05-01

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WO (1) WO2003035269A1 (fr)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
EP1491261A1 (fr) * 2003-06-25 2004-12-29 Spraying Systems Co. Procédé et dispositif pour surveiller l'intégrité des systèmes utilisés dans les installations de conditionnement de gas
WO2005045213A1 (fr) * 2003-11-07 2005-05-19 Alstom Technology Ltd Procede pour faire fonctionner un dispositif de pulverisation dans un groupe turbine a gaz
US7125007B2 (en) 2003-06-25 2006-10-24 Spraying Systems Co. Method and apparatus for reducing air consumption in gas conditioning applications

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US3233580A (en) 1962-11-05 1966-02-08 Plastic Materials Inc Material mixing and applying apparatus
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EP0326510A2 (fr) 1988-01-25 1989-08-02 Specified Equipment Systems Co., Inc. Procédé et appareil pour appliquer un fluide à un ou plusieurs composants
US5018954A (en) 1990-04-16 1991-05-28 Microparticle Technology, Inc. Shielded counter-rotating spinner assembly for microparticalization of liquid
JP2000153184A (ja) 1998-11-24 2000-06-06 Toyota Motor Corp 多色塗装用の塗装装置および塗装方法
US6112001A (en) 1997-07-30 2000-08-29 Kyocera Corporation Optical coupler and a method of producing it
US20010000611A1 (en) * 1998-02-27 2001-05-03 Fluid Research Corporation Apparatus for dispensing liquids and solids

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US478595A (en) 1892-07-12 Mine-elevator
US3233580A (en) 1962-11-05 1966-02-08 Plastic Materials Inc Material mixing and applying apparatus
US4204612A (en) * 1978-05-11 1980-05-27 Foam Controls Inc. System for applying foam insulation
US4294612A (en) 1978-12-26 1981-10-13 Aluminum Company Of America Fractional crystallization process
US4785995A (en) * 1986-03-18 1988-11-22 Mazda Motor Corporation Methods and apparatus for conducting electrostatic spray coating
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EP1491261A1 (fr) * 2003-06-25 2004-12-29 Spraying Systems Co. Procédé et dispositif pour surveiller l'intégrité des systèmes utilisés dans les installations de conditionnement de gas
US7125007B2 (en) 2003-06-25 2006-10-24 Spraying Systems Co. Method and apparatus for reducing air consumption in gas conditioning applications
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