EP1034891B1 - Reinigungsgerät und -verfahren - Google Patents
Reinigungsgerät und -verfahren Download PDFInfo
- Publication number
- EP1034891B1 EP1034891B1 EP00104095A EP00104095A EP1034891B1 EP 1034891 B1 EP1034891 B1 EP 1034891B1 EP 00104095 A EP00104095 A EP 00104095A EP 00104095 A EP00104095 A EP 00104095A EP 1034891 B1 EP1034891 B1 EP 1034891B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- compressed air
- pressure
- conduit
- 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.)
- Expired - Lifetime
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Classifications
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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
- B24C7/0015—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 operator must in the known device or method depending on the pressure conditions, d. H. the set air pressure or water pressure, the different flows, such as B. water-solid flow, water flow or compressed air flow, over various Adjust adjustment devices, so that for the desired cleaning success required mixing ratios between the individual streams and jet quantities be respected.
- the object of the invention is therefore a method and an apparatus 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 device a 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 tank 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 flow 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 avoids 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 it adds water 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 between the outlet line, which is connected to the outlet of the pressure vessel, and the pressure booster a water supply line is provided, 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.
- the pipe with the pressurized water in the Pressure vessel is injected to convey the mixture out of the pressure vessel, provided.
- 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 was kept constant is, it is through the described dosing devices, in particular with the perforated disk valves possible, precise and reproducible dosing settings 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 replenishment 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 is available if required be put.
- the second compressed air supply device is advantageously 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 compared to the two aforementioned lines is essential is smaller.
- 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 from 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.
- this advantageous embodiment includes 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. 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 solids-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 pressure 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 also 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, however, this reduces 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 the 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 switching 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 substantially larger than the diameter of the spray line 26, is therefore a ensures that the cleaning device is switched off quickly.
- 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 injection 2d or via fill 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.
- cleaning can only be carried out with compressed air.
- the compressed air switching device 21 open while the other switching devices 22-24 are closed are. Compressed air is thus supplied from the first via lines 5, 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 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 on 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 flow. Due to the water injection 2d, the pressure vessel 2 is simultaneously continuous 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 release 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 quick cut-off device Compared to the usual squeezing "of the spray line 26, e.g. Hose to achieve a quick break has the quick cut-off device also the advantage that the pressure in the spray line 26 very quickly is degraded and thus sources of danger, e.g. B. burst hose (Spray line 26) can be avoided.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Nozzles (AREA)
- Vehicle Body Suspensions (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Cleaning In General (AREA)
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,
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 und die Wasserversorgungseinrichtung (1, A) zumindest einen Wasseranschluß (A) aufweist, dadurch gekennzeichnet, daß die Wasserversorgungseinrichtung des Weiteren eine Wasserbereitstellungseinheit (1) aufweist, die so gestaltet ist, dass ein konstanter Wasserzufluss erreicht wird, mit einem Sicherheitsschalter (1b), 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 Anspruch 2, dadurch gekennzeichnet, dass der Wasservorratsbehälter (1) weiterhin einen Überlaufschalter (1a) aufweist, der die Wasserzufuhr von dem Wasseranschluss A stoppt, wenn ein Wasserhöchststand erreicht worden ist.
- Reinigungsgerät nach einem der Ansprüche 2 oder 3, 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) 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 Wasser- anschluss (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 Wasser-Feststoff-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, so daß das Reinigungsgerät abschaltet, wenn die Druckerhöhungseinrichtung (4) durch die Wasserversorgungseinrichtung (1, A) nicht mehr ausreichend mit Wasser versorgt 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 |
---|---|---|---|
DE19910563 | 1999-03-10 | ||
DE19910563A DE19910563A1 (de) | 1999-03-10 | 1999-03-10 | Reinigungsgerät und -Verfahren |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1034891A2 EP1034891A2 (de) | 2000-09-13 |
EP1034891A3 EP1034891A3 (de) | 2002-10-16 |
EP1034891B1 true EP1034891B1 (de) | 2004-11-24 |
Family
ID=7900403
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) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2382317B (en) * | 2001-11-22 | 2004-05-12 | Quill Internat Ind Plc | Abrasive blasting apparatus |
SG115439A1 (en) * | 2001-12-28 | 2005-10-28 | Jetsis Int Pte Ltd | Method and apparatus for abrasive recycling and waste separation system |
GB0200372D0 (en) * | 2002-01-08 | 2002-02-20 | Aquablast Ltd | 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 |
GB0612944D0 (en) * | 2006-06-29 | 2006-08-09 | Bhr Group Ltd | Water jet cutting apparatus |
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 |
NL1037571C2 (nl) * | 2009-12-18 | 2011-06-21 | Lasbedrijf Vink B V | Systeem voor het stralen van objecten met een mengsel van vloeistof en abrasief. |
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 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2077158A (en) * | 1980-06-07 | 1981-12-16 | Wood Group Structural Coatings | Wet grit blasting |
DE3473078D1 (en) * | 1984-01-26 | 1988-09-01 | Schmutz Gmbh Ernst | Process and device for cleaning parts of plants which are contaminated by radioactivity |
JPH03505553A (ja) * | 1988-03-02 | 1991-12-05 | クリーニング テクノロジー リミテッド | 研磨剤清掃・切削 |
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 EP EP00104095A patent/EP1034891B1/de not_active Expired - Lifetime
- 2000-02-28 AT AT00104095T patent/ATE283146T1/de active
- 2000-02-28 ES ES00104095T patent/ES2232338T3/es not_active Expired - Lifetime
- 2000-02-28 PT PT00104095T patent/PT1034891E/pt unknown
- 2000-02-28 DE DE50008716T patent/DE50008716D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1034891A2 (de) | 2000-09-13 |
EP1034891A3 (de) | 2002-10-16 |
DE50008716D1 (de) | 2004-12-30 |
ES2232338T3 (es) | 2005-06-01 |
ATE283146T1 (de) | 2004-12-15 |
DE19910563A1 (de) | 2000-09-14 |
PT1034891E (pt) | 2005-03-31 |
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