EP1034891A2 - Reinigungsgerät und -verfahren - Google Patents
Reinigungsgerät und -verfahren Download PDFInfo
- Publication number
- EP1034891A2 EP1034891A2 EP00104095A EP00104095A EP1034891A2 EP 1034891 A2 EP1034891 A2 EP 1034891A2 EP 00104095 A EP00104095 A EP 00104095A EP 00104095 A EP00104095 A EP 00104095A EP 1034891 A2 EP1034891 A2 EP 1034891A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- compressed air
- pressure
- line
- mixture
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
- B24C7/0015—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
- B24C7/003—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with means for preventing clogging of the equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0084—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a mixture of liquid and gas
Definitions
- the present invention relates to a cleaning device according to the preamble of Claim 1 and a method according to the preamble of claim 13.
- a device and a method are known from US Pat. No. 5,283,991, in which a mixture of water and solid particles is generated in a pressure vessel and is stored under pressure.
- water comes from a water connection pumped with pressure into the pressure vessel, so that at an outlet of the pressure vessel, the mixture exits the pressure vessel under pressure.
- the mixture is conveyed to a nozzle via a switching device, through which it is dispensed onto the surface to be cleaned.
- the switching device also has a compressed air connection, so that via the switching device compressed air can also be directed to the outlet nozzle.
- the cleaning device or method is used so that the switching device first compressed air is output at the outlet nozzle. With this Compressed air can initially be cleaned from loosely adhering surfaces Dirt are freed.
- the pressure of the Pressure water from the connected air pressure and the connected Water pressure, the compressed air regulating the pressure of the pressurized water via a valve must be set.
- the safety of the pressure vessel It is extremely important that no air gets into the pressure vessel, as this in contrast to water is compressible and therefore changed safety requirements to the pressure vessel and the operation of the device disturbing, it is important that the operator constantly keep the water supply from the water connection checked and the pressure conditions in the cleaning device, in particular the pressure in the pressure vessel depending on the pre-pressure of the water, about the above Valve regulates if the water supply is via the water connection fluctuates, or insufficient for the desired water pressure Amounts of water can be provided.
- this also depends on the set Values for compressed air and pressurized water or their relationship to each other from.
- the object of the invention is therefore a method and a device for execution of the process that is easy to use, i.e. that the operator largely exempt from monitoring and setting tasks, whereby at the same time a constant and good dosage of compressed air, pressurized water and mixture as well as economical use of water is achieved.
- the cleaning device should be simple and safe and sufficient Provide performance.
- the water supply unit with a safety switch that includes the cleaning device switches off before the water supply becomes insufficient. Thereby it is ensured that only water enters the pressure vessel during operation is pumped and no air through which the safety of the pressure vessel could be endangered. Due to the constant water supply from the water supply unit is a constant inflow of water to the cleaning device guaranteed.
- the pressure increasing device which provides the water supplied as pressurized water for the device automatically can be controlled via the compressed air, so that the pressurized water always has a 20% higher pressure value than compressed air.
- This control of the pressure increasing device via the compressed air can therefore done automatically because not having a fluctuating water supply a regulation of the compressed air, which controls the pressure increasing device, responds must become.
- the water supply unit advantageously comprises a water reservoir, which serves as an intermediate buffer, being on the water reservoir a float switch is provided which performs the functions of the safety switch takes over. If the water in the water reservoir drops below a certain level Minimum height, so the float switch responds and switches off the device. This ensures that sufficient water is available during operation of the cleaning device Way is available.
- the water reservoir also has an overflow switch on the water supply to the water reservoir stops when a water level is reached. This will avoid that excessive water is consumed that is not needed.
- the water reservoir to provide a solids separator so that excess water from the Pressure vessel that has an overflow opening when filling the pressure vessel can run to the water reservoir of the water supply device can be traced back. Because the excess water from the pressure tank Can contain solid parts, it is necessary to remove them before returning the Separate water for water supply with a solids separator.
- the pressure booster for generating the pressurized water to be controlled automatically via the connected compressed air.
- the regulation takes place in such a way that by directly on the pressure booster compressed air the water pressure generated is about 20% higher that of the adjacent compressed air. This will ensure that the water pressure is always approx. 20% or 0.2 - 0.8 bar higher than the connected air pressure.
- This is advantageous because water is added and / or mixture to the compressed air flow, the water or the mixture with pressure is entered into the compressed air flow. This has the consequence that when mixing of the different flows no injector effect occurs and the desired one Dosage can thus be adhered to exactly.
- a water supply line is provided, via which if necessary additional pressurized water can be added to the mixture.
- the water, compressed air and water solid streams are advantageously led to the outlet nozzle via switching devices.
- the various flows to the outlet nozzle can be activated or blocked become.
- these switching devices run as valves, where it is also possible to adjust the volume flow to regulate, it is advantageous to design these switching devices as on / off switches, which only allow compressed air, pressurized water or a mixture to be switched on or cordon off. If the switching devices are designed as on / off switches, so it is particularly advantageous to add additional dosing devices in the different Lines such as compressed air line, water line, water supply line and / or water injection line, d. H. the pipe with which pressurized water flows into the Pressure vessel is injected to convey the mixture out of the pressure vessel, to provide. The enforced Amounts of compressed air and / or water can be regulated.
- the metering devices are advantageously designed as metering valves inside each a perforated disc with different sized bores have, so that depending on the set bore, the flow rate is precisely defined and is reproducibly adjustable. It is advantageous if the metering devices are installed in the lines so that the pressure drop at Operation on the dosing devices only slight, i.e. approx. 0.2 - 0.8 bar.
- the water supply in the device or method according to the invention and the pressure ratio between water and air kept constant is, it is through the described dosing devices, in particular with the perforated disk valves possible, precise and reproducible dosing settings to make.
- the operator can thus easily operate the metering devices set a certain flow rate and this, for example read off on a scale on the dosing devices and he can be sure be that in relation to the connected compressed air flow, d. H. independently from this, the desired amount of water or mixture, metered becomes.
- the operator does not have to adjust the water pressure and thus no subsequent metering of the water or compressed air flows as a result of changed water pressure-air pressure ratio.
- the cleaning device or method according to the invention ensures that only non-compressible water is supplied to the pressure vessel and thus a corresponding amount of mixture from the pressure vessel exit. This also supports the exact dosage.
- a preferred embodiment is to achieve a greater cleaning performance equipped with a second compressed air supply device, parallel to the first compressed air supply device on the compressed air line connected. This means that a higher compressed air output can be available if required be put.
- the second compressed air supply device is advantageous switched so that first the amount of compressed air from the first Compressed air supply device can be controlled via a metering device can, and, if this is no longer sufficient, the compressed air of the second compressed air supply device can be switched on.
- an auxiliary line is provided, whose cross-section is essential compared to the two aforementioned lines is smaller. This ensures that in the event of poor derivation of the Mixture from the pressure vessel, e.g. B. when using fixed parts with large diameter or solid parts without fine particles or loamy Sand as solid parts, the pressure build-up when the pressurized water is injected into the pressure vessel can be dismantled via the auxiliary line, the supply of water near the outlet of the pressure vessel at the same time Derivation of the mixture facilitated. This ensures that even under difficult conditions given a smooth operation of the pressure vessel is.
- a filling device for. B. in the form of a filling funnel, provide a closable water connection, to which via a line pressurized water can be supplied by the pressure increasing device, so that the filling of the solid parts is facilitated by water supply.
- the switching and / or metering devices are preferably in the various Cables designed as electropneumatic valves that use compressed air, which is branched off from the compressed air supply device, are actuated. It is particularly preferred to use a compressed air tank as an intermediate store to provide for actuation of the switching and / or metering devices guarantee, even if the compressed air supply should fail.
- the electropneumatic Valves also have the advantage that they also have a Remote control can be controlled so that the operator, for example works on the outlet nozzle far away from the actual cleaning device, operate the switching and / or dosing devices via a remote control can.
- the cleaning device essentially comprises a water supply device 1, A, a pressure vessel 2 with one attached to it Filling device 3, a pressure increasing device 4, a spray device 27, several lines for carrying water, compressed air and / or mixture as well as several switching and / or dosing devices (21 - 24; 9, 11, 15, 17) for Regulate the respective flow rates.
- a water supply device 1, A a pressure vessel 2 with one attached to it Filling device 3, a pressure increasing device 4, a spray device 27, several lines for carrying water, compressed air and / or mixture as well as several switching and / or dosing devices (21 - 24; 9, 11, 15, 17) for Regulate the respective flow rates.
- the first compressed air supply device B includes this advantageous embodiment another Compressed air supply device C, to increase performance the cleaning device in addition to the compressed air supply device B can be switched on.
- the water supply device 1, A comprises a water reservoir 1 and one Water connection A. Furthermore, the water tank 1 has two switches 1a, 1b, which are advantageously designed as a float switch, and at Exceeding a water high (switch 1a) or a water low (1b) switch. If the maximum water level is exceeded, the Switch 1a the water supply to the water reservoir 1 by the water connection A is closed. The switch 1b switches when one falls below Water level from the cleaning device.
- the water supply device 1, A contains a solids separator 1d, which is advantageously arranged in the upper part of the water reservoir 1 is, so that the water level in the water reservoir 1 below the solids separator 1d lies.
- the solids separator 1d is connected via a line from the Overflow 2b of the pressure vessel 2 is fed and is used for the recovery of solid-free water.
- the pressure vessel 2 which is used to produce a mixture of water and solid particles and is used to provide this mixture under pressure points at his lower end a water injection 2d and an outlet 2e while in the upper part a filling opening 2a, an overflow 2b and a pressure relief valve 2c are arranged.
- a filling device 3 in the form of a screen attachment is located directly at the filling opening 2a intended.
- the screen attachment 3 comprises a funnel-shaped base body, in which a sieve is arranged to remove solid parts, e.g. Sands to seven, like this that the solid parts have the desired grain size.
- the screen attachment 3 a water connection 3a and a vibrating unit 3b.
- the water connection is designed so that the water flowing into the sieve attachment 3 fixed parts in it are set in a slight rotation. Through the current of water and / or the vibration generated by the vibrating unit 3b filling the pressure water tank with solid parts is made easier.
- the pump 4c has an output line 4d, through which the the pump 4c generated pressurized water is output.
- a connection for the compressed air control line 6 is available, via which the Control of the pump necessary compressed air is present. Because of the compressed air of the compressed air control line 6, the pump 4c is controlled so that the Water pressure at the pump outlet 4d is about 20% higher than the air pressure in the compressed air control line 6.
- the pump outlet 4d is on the one hand connected to the closable via a line Water connection 3a of the filling device 3 connected.
- the other is Pump outlet 4d of the pressure booster 4 via the water injection line 12 connected to the water injection 2d of the pressure vessel 2.
- a metering device 11 a check valve RV and a pressure gauge 13 intended.
- the amount of water, the Injection 2d is fed into the pressure vessel 2 can be set.
- the pump outlet 4d of the pressure increasing device 4 connected to the water switching device 22 via the water line 18.
- the Water pipe 18 is also a metering device 17 and a check valve RV arranged.
- Another water supply line 16 is parallel to the water injection line 12 and to the water line 18 at the pump outlet 4d of the pressure booster 4 connected.
- This water supply line 16 also has a metering device 15 and a check valve RV on.
- the other end of the water supply line 16 opens into the outlet line 20, which extends from the outlet 2e of the Pressure vessel 2 extends to the mixture switching device 23. In this way it is possible to mix the mixture from the pressure vessel 2 to the mixture switching device 23 is guided, in addition one via the metering device 15 add adjustable amount of water.
- auxiliary line 14 is further provided in the exemplary embodiment shown, which starts from the water injection line 12 and in the vicinity of the outlet 2e of the pressure vessel 2 opens into the outlet line 20.
- the cross section of the Auxiliary line 14 is opposite the cross sections of the water injection line 12 and the outlet line 20 greatly reduced so that only a small amount of Water can flow through the auxiliary line 14, which, however, the outflow of the mixture relieved from the pressure vessel 2.
- the auxiliary line 14 also has a Check valve RV on.
- the cleaning device has a compressed air switching device 21 on.
- This compressed air switching device 21 is via the compressed air line 19 with the second compressed air supply device C and via the connecting lines 8 and 5 connected to the first compressed air supply device B.
- the connecting line 8 is also a metering device 9 and a check valve RV provided in the connecting line 8 .
- the compressed air line 19 can also be a Have manomotors 10.
- a quick release switching device 24 provided which is connected to a quick drain line 25 is.
- the switching devices 21-24 are in the exemplary embodiment shown designed as an on / off switch and are advantageously one behind the other arranged that the compressed air switching device 21 of the water switching device 22 is connected upstream, while the water switching device 22 in turn Mixture switching device 23 is connected upstream. This way, when open Compressed air switching device 21 the compressed air flow by opening the water switching device 22 water or by opening the mixture switching device 23 a mixture can be added without damage to the solid parts on the compressed air switching device 21 or the water switching device 22 could cause. Subsequent to the mixture switching device 23, the quick release switch device 24 is arranged.
- the quick release switching device 24 is designed so that when open Quick drain switch 24 of access to the quick drain line 25 is open is, and thus compressed air, water and / or mixture via the quick drain line 25 can be drained. Because the diameter of the quick drain line 25 is significantly larger than the diameter of the spray line 26, is a rapid shutdown of the cleaning device guaranteed.
- the switching devices 21-24 and the metering devices of 9, 11, 15 and 17 are advantageously in the embodiment shown as electropneumatic Valves executed. This makes it possible for them, for example also by a remote control, which is advantageously on the spray device 27 can be operated.
- the one for actuating the electropneumatic Valves necessary compressed air is supplied by the compressed air supply device B provided, advantageously a compressed air tank 7a is interposed as a buffer, so that a constant supply of the electropneumatic Valves with compressed air is ensured.
- the cleaning device according to the invention according to the present embodiment is operated in the following way:
- the compressed air tank 2 with solid parts i.e. H. granular materials, which are clay-free and heavier than water and have a grain size of up to max. 3 mm own, e.g. B. sand or the like.
- the fixed parts and / or water is poured into the filling opening 2a via the sieve attachment 3. Due to the higher weight of the fixed parts, they decrease when the pressure vessel is filled 2 down while the lighter water at the open overflow 2b can escape. Since the overflow 2b connected to the solid separator 1d is, the excess water in the solid separator 1d from the solid parts separated and then the water supply device 1, A available posed.
- the pressure vessel 2 is filled with solid parts and / or water as long as until the solid parts reach the overflow 2b. Then the overflow 2b closed and the rest of the pressurized water tank is up to the filling opening 2a filled up with water. This residual filling with water can over the injection 2d or via the filling opening 2a.
- the padding with Water via the injection 2d has the advantage that the solid parts in the lower Area can be loosened somewhat by the penetrating water. Is the pressure vessel 2 completely filled with water, the filling opening 2a is closed and the pressure vessel 2 is pressurized via the injection 2d set.
- the pump 4c is directly via the compressed air control line 6 through the compressed air supply device B controlled so that the water pressure or the pressure in Pressure vessel 2 is approximately 0.2 to 0.8 bar higher than the connected air pressure.
- the cleaning device according to the invention can be used to clean surfaces now do the following. For one thing, cleaning can only be carried out with compressed air. For this, the compressed air switching device 21 open while the other switching devices 22-24 are closed are. Compressed air is thus supplied from lines 1, 8 and 19 Compressed air supply device B directed to the spray device 27. The amount of compressed air can be regulated by adjusting the metering device 9. If particularly powerful cleaning with compressed air is required, this can also be done the second compressed air supply device C can be connected and the metering device 9 are opened completely.
- a second cleaning option is to add water to the compressed air flow to add.
- the switching device 22 is additionally opened.
- the amount added water can be adjusted by the metering device 17. Since the water pressure in the cleaning device by the pressure increasing device 4 is greater than the pressure of the compressed air, the added water with overpressure added to the compressed air flow. This ensures that the at the dosing device 17 set amount is observed.
- Another way of cleaning is to enter the compressed air flow Add mixture of water and solid particles.
- Compressed air switching device 21 opened the mixture switching device 23 while the switching devices 22 and 24 are closed. With that, too with overpressure, the mixture coming from the pressure vessel 2, the Leaves pressure vessel 2 through outlet 2e, entered into the compressed air stream. Due to the water injection 2d, the pressure vessel 2 becomes constant at the same time Water added so that the built up by the pressure increasing device 4 Pressure in pressure vessel 2 is maintained. The same amount of water that is supplied to the pressure vessel 2, thus emerges as a mixture at the outlet 2e.
- the quick release switch 24 also allows the cleaning device switch off so that the spraying process ends within a very short time becomes. If the switching devices 21-23 are closed, then remains in the u. U. very long spray line 26 a rest of the spray medium, which u. U. can lead to very long post-spraying times. Here is the quick drain switch 24 opened, so that located in the spray line 26 Medium through the quick drain line 25, which has a much larger cross section than the spray line 26 has, escape very quickly. So that can if necessary, a very quick interruption of the spraying process can be achieved.
- the rapid shutdown device Compared to the usual Squeezing "the spray line 26, for example in the case of a hose, in order to achieve a quick interruption, the rapid shutdown device also has the advantage that the pressure in the spray line 26 is reduced very quickly and thus sources of danger, for example bursting of the hose ( Spray line 26) can be avoided.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Nozzles (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Cleaning In General (AREA)
- Vehicle Body Suspensions (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
Description
Claims (16)
- Reinigungsgerät für die Reinigung von Oberflächen miteinem Druckbehälter (2) zur Aufnahme von Wasser und Festteilen und Speicherung dieser unter Druck,einer Wasserversorgungseinrichtung (1, A),einer Druckluftversorgungseinrichtung (B),einer Druckerhöhungseinrichtung (4), die an der Wasserversorgungseinrichtung (1, A) angeschlossen ist und den Druck des zugeführten Wassers erhöht,einer Sprühvorrichtung (27) zum Ausgeben von Druckluft und/oder Wasser und/oder Gemisch auf die zu reinigende Oberfläche,mehrere Leitungen zur Führung von Wasser, Druckluft und/oder Festteilen,mehrere Schalt- und/oder Dosiervorrichtungen (9, 11, 15, 17; 21 - 24), die in den Leitungen vorgesehen sind, um Wasser-, Druckluft- und/oder Gemisch-Ströme zu regeln,
wobei zumindest eine Wassereinspritzleitung (12) zwischen Druckerhöhungseinrichtung (4) und Druckbehälter (2),
zumindest eine Auslaß-Leitung (20) zwischen Druckbehälter (2) und Gemisch-Schalteinrichtung (23),
zumindest eine Wasserleitung (18) zwischen Druckerhöhungseinrichtung (4) und Wasser-Schalteinrichtung (22),
zumindest eine Druckluftleitung (19) zwischen Druckluftversorgung (B) und Druckluftschalteinrichtung (21) sowie
zumindest eine Sprühleitung (26) zwischen den Schalteinrichtungen (21 - 23) und der Sprühvorrichtung (27) vorgesehen ist,
wobei die Schalteinrichtungen (21 - 23) unterschiedliche Schaltzustände aufweisen, bei denen entsprechend Druckluft und/oder Wasser und/oder Gemisch an der Sprühvorrichtung (27) ausgegeben werden, wobei das Gemisch durch eine Auslaßöffnung (2e) des Druckbehälters (2) über die Auslaß-Leitung (20) und die Gemisch-Schaltvorrichtung (23) zur Sprühvorrichtung (27) ausgegeben wird, während gleichzeitig über die Wassereinspritzleitung (12) und eine Wassereinspritzvorrichtung (2d) Wasser von der Druckerhöhungseinrichtung (4) in den Druckbehälter (2) zugeführt wird, dadurch gekennzeichnet, daß die Wasserversorgungseinrichtung (1, A) zumindest einen Wasseranschluß (A) und eine Wasserbereitstellungseinheit (1) mit einem Sicherheitsschalter (1b) umfaßt, wobei der Sicherheitsschalter (1b) das Reinigungsgerät abschaltet, wenn die Druckerhöhungseinrichtung (4) durch die Wasserversorgungseinrichtung (1, A) nicht mehr ausreichend mit Wasser versorgt wird. - Reinigungsgerät nach Anspruch 1, dadurch gekennzeichnet, daß die Wasserbereitstellungseinheit (1, A) einen Wasservorratsbehälter (1) umfaßt, bei dem der Sicherheitsschalter (1b) als Schwimmschalter ausgeführt ist, der bei Unterschreitung eines bestimmten Wasserstandes schaltet.
- Reinigungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wasservorratsbehällter (1) weiterhin einen Überlaufschalter (1a) aufweist, der die Wasserzufuhr von dem Wasseranschluß A stoppt, wenn ein Wasserhöchststand erreicht worden ist.
- Reinigungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wasservorratsbehälter (1) einen Feststoffabscheider (1d) umfaßt, der über eine Leitung mit einer Überlauföffnung (2b) des Druckbehälters (2) verbunden ist, und von dort mit Wasser versorgt wird.
- Reinigungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Druckerhöhungseinrichtung (4) unmittelbar über eine Druckluftsteuerleitung (6) mit der Druckluftversorgungseinrichtung B verbunden ist, und durch die anliegende Druckluft gesteuert wird.
- Reinigungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwischen Auslaß-Leitung (20) und Druckerhöhungseinrichtung (4) eine Wasserzusetzleitung (16) vorgesehen ist, über die zusätzlich Wasser dem Gemisch zusetzbar ist.
- Reinigungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in der Wassereinspritzleitung (12) und/oder Wasserzusetzleitung (16) und/oder Wasserleitung (18) zusätzliche Dosiervorrichtungen (11, 15, 17) angeordnet sind, durch die die durchgesetzten Mengen regelbar sind.
- Reinigungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Dosiervorrichtungen (11, 15, 17) Lochscheiben mit verschieden großen Bohrungen aufweisen, mit denen die Durchflußmenge genau definiert einstellbar ist, wobei der Druckabfall durch die Dosiervorrichtungen (11, 15, 17) auf ca. 0,8 bar begrenzt ist.
- Reinigungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine zweite Druckluftversorgungseinrichtung (C) vorgesehen ist, die parallel zur ersten Druckluftversorgungseinrichtung (B) an der Druckluftleitung (19) anschließbar ist und somit bei Bedarf die Druckluftleistung erhöht.
- Reinigungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwischen Wassereinspritzleitung (12) und Auslaß-Leitung (20) eine Hilfsleitung (14) vorgesehen ist, deren Querschnitt gegenüber der Wassereinspritzleitung (12) und der Auslaß-Leitung (20) wesentlich kleiner ist.
- Reinigungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwischen Druckerhöhungseinrichtung (4) und einem verschließbaren Wasseranschluß (3a) an einer Befüllvorrichtung (3) des Druckbehälters 2 eine Leitung vorgesehen ist, über die Wasser zur Befüllvorrichtung (3) geführt werden kann, wenn der Wasseranschluß geöffnet ist.
- Reinigungsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schalt- und oder Dosiervorrichtungen (11, 15, 17; 21 - 24) elektropneumatische Ventile umfassen, die über ein mit einem Druckluftspeicher (7a) versehenen Anschluß (7b) mit der ersten Druckluftversorgungseinrichtung (B) verbunden sind, und über Druckluft betätigt werden.
- Verfahren zur Reinigung von Oberflächen mit Druckluft- und/oder Wasser und/oder einem Gemisch, insbesondere Wasser-Sand-Gemisch, wobei in einem Druckbehälter das Gemisch erzeugt wird, das durch Einspritzen von Wasser in den Druckbehälter (2) aus dem Druckbehälter herausgepreßt wird und zu einer Schalteinrichtung (23) geführt wird, wobei der Druck des zugeführten Wassers durch eine Druckerhöhungseinrichtung (4) bereitgestellt wird, und wobei Druckluft und das von der Druckerhöhungseinrichtung (4) bereitgestellte Druckwasser an weiteren Schalteinrichtungen (21, 22) vorliegt und an den Schalteinrichtungen (21 - 23) ausgewählt wird, ob die Reinigung nur mit Druckluft, Wasser oder Gemisch oder einer Kombination aus diesen durchgeführt wird, dadurch gekennzeichnet, daß die Wasserzufuhr zur Druckerhöhungseinrichtung (4) so geführt ist, daß die Wasserzufuhr konstant ist und automatisch überwacht wird.
- Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß der durch die Druckerhöhungseinrichtung (4) erzeugte Druck des Wassers sich automatisch auf einen Wert einstellt, der ca. 20 % über dem der Druckluft liegt.
- Verfahren nach Anspruch 13 oder 14, dadurch gekennzeichnet, daß der Abfluß des Gemisches aus dem Druckbehälter (2) durch eine geringe Wasserzuleitung kurz hinter dem Abfluß (2e) erleichtert wird.
- Verfahren nach einem der Ansprüche 13 - 15, dadurch gekennzeichnet, daß die Mengen an Druckluft, Wasser und Gemisch genau einstellbar sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE19910563A DE19910563A1 (de) | 1999-03-10 | 1999-03-10 | Reinigungsgerät und -Verfahren |
DE19910563 | 1999-03-10 |
Publications (3)
Publication Number | Publication Date |
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EP1034891A2 true EP1034891A2 (de) | 2000-09-13 |
EP1034891A3 EP1034891A3 (de) | 2002-10-16 |
EP1034891B1 EP1034891B1 (de) | 2004-11-24 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00104095A Expired - Lifetime EP1034891B1 (de) | 1999-03-10 | 2000-02-28 | Reinigungsgerät und -verfahren |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1034891B1 (de) |
AT (1) | ATE283146T1 (de) |
DE (2) | DE19910563A1 (de) |
ES (1) | ES2232338T3 (de) |
PT (1) | PT1034891E (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003045633A1 (en) * | 2001-11-22 | 2003-06-05 | Quill International Industries Plc | Abrasive blasting apparatus |
WO2003055645A1 (en) * | 2001-12-28 | 2003-07-10 | Jetsis International Pte Ltd | Method and apparatus for abrasive recycling and waste separation system |
WO2003057408A1 (en) * | 2002-01-08 | 2003-07-17 | Aquablast Limited | Removing surface coatings and contamination |
DE102005010781A1 (de) * | 2005-02-25 | 2006-08-31 | Alfred Kärcher Gmbh & Co. Kg | Partikelstrahlvorrichtung |
EP1859901A1 (de) * | 2006-05-23 | 2007-11-28 | ANT Applied New Technologies AG | Vorrichtung zum Flüssigkeitsabrasivsuspensionsstrahlen |
WO2008001111A1 (en) * | 2006-06-29 | 2008-01-03 | Bhr Group Limited | Water jet cutting apparatus |
WO2011074944A1 (en) * | 2009-12-18 | 2011-06-23 | Lasbedrijf Vink B.V. | System and method for blasting objects with a mixture of liquid and abrasive. |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009043697A1 (de) * | 2009-10-01 | 2011-04-07 | Alstom Technology Ltd. | Verfahren zum Bearbeiten von Werkstücken mittels eines unter hohem Druck aus einer Düse austretenden schleifmittelhaltigen Wasserstrahls, Wasserstrahlanlage zur Durchführung des Verfahrens sowie Anwendung des Verfahrens |
CN108857915B (zh) * | 2018-09-29 | 2023-07-18 | 广东水拓工程科技有限公司 | 湿式喷砂系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2077158A (en) * | 1980-06-07 | 1981-12-16 | Wood Group Structural Coatings | Wet grit blasting |
EP0158743A1 (de) * | 1984-01-26 | 1985-10-23 | Ernst Schmutz GmbH | Verfahren und Vorrichtung zum Reinigen radioaktiv verseuchter Anlagenteile |
EP0335503A2 (de) * | 1988-03-02 | 1989-10-04 | Cleaning Technology Limited | Reinigen oder Schneiden mittels eines Abrasivsstrahles |
US5283991A (en) * | 1992-09-08 | 1994-02-08 | Josef Keizers | Sandblasting method and a moist-sand blasting apparatus |
DE19623024A1 (de) * | 1996-06-08 | 1997-12-11 | Josef Bauer | Naßstrahlanlage |
-
1999
- 1999-03-10 DE DE19910563A patent/DE19910563A1/de not_active Withdrawn
-
2000
- 2000-02-28 DE DE50008716T patent/DE50008716D1/de not_active Expired - Lifetime
- 2000-02-28 PT PT00104095T patent/PT1034891E/pt unknown
- 2000-02-28 EP EP00104095A patent/EP1034891B1/de not_active Expired - Lifetime
- 2000-02-28 ES ES00104095T patent/ES2232338T3/es not_active Expired - Lifetime
- 2000-02-28 AT AT00104095T patent/ATE283146T1/de active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2077158A (en) * | 1980-06-07 | 1981-12-16 | Wood Group Structural Coatings | Wet grit blasting |
EP0158743A1 (de) * | 1984-01-26 | 1985-10-23 | Ernst Schmutz GmbH | Verfahren und Vorrichtung zum Reinigen radioaktiv verseuchter Anlagenteile |
EP0335503A2 (de) * | 1988-03-02 | 1989-10-04 | Cleaning Technology Limited | Reinigen oder Schneiden mittels eines Abrasivsstrahles |
US5283991A (en) * | 1992-09-08 | 1994-02-08 | Josef Keizers | Sandblasting method and a moist-sand blasting apparatus |
DE19623024A1 (de) * | 1996-06-08 | 1997-12-11 | Josef Bauer | Naßstrahlanlage |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6896597B2 (en) | 2001-11-22 | 2005-05-24 | Quill International Industries, Plc | Abrasive blasting apparatus |
CN100393476C (zh) * | 2001-11-22 | 2008-06-11 | 奎尔国际工业股份有限公司 | 喷砂装置 |
WO2003045633A1 (en) * | 2001-11-22 | 2003-06-05 | Quill International Industries Plc | Abrasive blasting apparatus |
GB2382317B (en) * | 2001-11-22 | 2004-05-12 | Quill Internat Ind Plc | Abrasive blasting apparatus |
US7267605B2 (en) | 2001-12-28 | 2007-09-11 | Jetsis International Pte Ltd | Method and apparatus for abrasive recycling and waste separation system |
SG115439A1 (en) * | 2001-12-28 | 2005-10-28 | Jetsis Int Pte Ltd | Method and apparatus for abrasive recycling and waste separation system |
US7261619B2 (en) | 2001-12-28 | 2007-08-28 | Jetsis International Pte Ltd | Method and apparatus for abrasive recycling and waste separation system |
US7294042B2 (en) | 2001-12-28 | 2007-11-13 | Jetsis International Pte Ltd | Method and apparatus for abrasive recycling and waste separation system |
WO2003055645A1 (en) * | 2001-12-28 | 2003-07-10 | Jetsis International Pte Ltd | Method and apparatus for abrasive recycling and waste separation system |
CN100469535C (zh) * | 2001-12-28 | 2009-03-18 | 杰特西斯国际有限公司 | 用于研磨料回收的方法和装置以及废料分离系统 |
WO2003057408A1 (en) * | 2002-01-08 | 2003-07-17 | Aquablast Limited | Removing surface coatings and contamination |
DE102005010781A1 (de) * | 2005-02-25 | 2006-08-31 | Alfred Kärcher Gmbh & Co. Kg | Partikelstrahlvorrichtung |
EP1859901A1 (de) * | 2006-05-23 | 2007-11-28 | ANT Applied New Technologies AG | Vorrichtung zum Flüssigkeitsabrasivsuspensionsstrahlen |
WO2007134702A1 (de) * | 2006-05-23 | 2007-11-29 | Ant Applied New Technologies Ag | Vorrichtung zum flüssigkeitsabrasivsuspensionsstrahlen |
WO2008001111A1 (en) * | 2006-06-29 | 2008-01-03 | Bhr Group Limited | Water jet cutting apparatus |
WO2011074944A1 (en) * | 2009-12-18 | 2011-06-23 | Lasbedrijf Vink B.V. | System and method for blasting objects with a mixture of liquid and abrasive. |
Also Published As
Publication number | Publication date |
---|---|
ES2232338T3 (es) | 2005-06-01 |
DE19910563A1 (de) | 2000-09-14 |
ATE283146T1 (de) | 2004-12-15 |
EP1034891A3 (de) | 2002-10-16 |
DE50008716D1 (de) | 2004-12-30 |
EP1034891B1 (de) | 2004-11-24 |
PT1034891E (pt) | 2005-03-31 |
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