EP2556934A1 - Spraying device and process for analyzing a release mixture - Google Patents
Spraying device and process for analyzing a release mixture Download PDFInfo
- Publication number
- EP2556934A1 EP2556934A1 EP20110177017 EP11177017A EP2556934A1 EP 2556934 A1 EP2556934 A1 EP 2556934A1 EP 20110177017 EP20110177017 EP 20110177017 EP 11177017 A EP11177017 A EP 11177017A EP 2556934 A1 EP2556934 A1 EP 2556934A1
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- Prior art keywords
- binder
- additive
- dispensing
- mixture
- delivery device
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/02—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing
- B28C5/026—Mixing guns or nozzles; Injector mixers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/882—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances
- B01F35/8822—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances using measuring chambers of the piston or plunger type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1481—Spray pistols or apparatus for discharging particulate material
- B05B7/149—Spray pistols or apparatus for discharging particulate material with separate inlets for a particulate material and a liquid to be sprayed
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/06—Implements for applying plaster, insulating material, or the like
- E04F21/08—Mechanical implements
- E04F21/12—Mechanical implements acting by gas pressure, e.g. steam pressure
Definitions
- the present application relates to a spraying apparatus and a method for analyzing a dispensing mixture.
- Spraying machines in particular shotcrete radiators, are used to apply a dispensing mixture, for example a mixture of shotcrete or mortar, pneumatically from a spray nozzle.
- a dispensing mixture for example a mixture of shotcrete or mortar
- spraying device When applying or applying the concrete by spraying device one speaks of an installation.
- a particular advantage of the shotcrete and the installation method is that the impact is accompanied by a compression of the shotcrete.
- shotcrete is used primarily for the repair / reinforcement of concrete components, as well as for rock consolidation, and in particular temporary, expansion in tunneling. However, the application of the method is not limited to these ranges.
- a sprayer is for example from the DE 44 44 405 A1 known.
- a concrete is a mixture of cement, aggregate and mixing water or water.
- additives are added to alter the properties of the concrete.
- additives in the form of hardening accelerators are used.
- the proper selection of the composition of a dispensing mixture is very complicated, since it leads to the material loss already explained as well as physical changes due to the processing method. Therefore, it is extremely time-consuming (cost-intensive and time-consuming) to develop a suitable dispensing mixture for specific requirements. For example, the curing time, Adhesion on the application surface, processing temperature, etc. are taken into account.
- a suitable dispensing mixture is determined in an iterative process.
- the dispensing mixture must be applied and analyzed with conventional, very expensive sprayers. It is usually necessary to apply large quantities of the dispensing mixture for these tests since the conventional sprayers are designed for this purpose.
- the fluid source may be an air and / or gas source, eg a gas cylinder.
- An essential point of the present invention is thus to provide a spray device which allows a spray application of a dispensing mixture.
- the dispensing mixture may be a paste and / or a cement mixture and / or a mortar mixture.
- the sprayer is intended to mix the preferably hydraulic binder, eg lime and / or cement, of the additive and of the blowing agent enable.
- the sprayer according to the invention ensures this, with the method can be readjusted in the laboratory.
- the claimed sprayer allows easy simulation of the dispensing process and quick and easy cleaning.
- the additive may be a cure accelerator or any other additive.
- the mixer may comprise a propellant conduit for transporting the propellant from the fluid source to the nozzle, the propellant conduit comprising at least a first junction for the at least one additive and at least one second confluence for the binder, in particular the cement, the at least one first confluence is arranged upstream of the second junction.
- the propellant conduit comprising at least a first junction for the at least one additive and at least one second confluence for the binder, in particular the cement, the at least one first confluence is arranged upstream of the second junction.
- the sprayer may comprise at least a third junction for introducing a cleaning liquid into the mixer, in particular into at least a portion of the blowing agent line. It is thus possible, after a test or simulation run, in which a certain dispensing mixture is dispensed, to clean the entire spraying device, in particular the mixer, by means of the cleaning liquid (for example water). In this respect, it is possible to carry out various tests at low cost and iteratively to determine a suitable mixture for certain applications. Furthermore, the reaction behavior of the shotcrete can be analyzed depending on certain parameters (e.g., temperature, additives used, etc.).
- the sprayer may be equipped with at least two additive dispensers so that they deliver a first and a second additive. It is advantageous if tests can be carried out in which differing additives can be introduced into the dispensing mixture at the same time or with a time delay.
- the at least one additive dispensing device may comprise a receiving device for, in particular interchangeable, receiving a cartridge.
- the additive dispensing device is thus adapted to receive cartridges that can be changed quickly and easily. In this respect, different additives can be used for different tests, without having to carry out cleaning of chambers provided for this purpose of the additive dispensing device.
- the at least one additive delivery device and / or the binder delivery device, in particular the cement delivery device may comprise at least one linear drive (for example screw jack, linear motor, etc.) for delivering the cement or the additive.
- a linear drive for example screw jack, linear motor, etc.
- the binder delivery device may comprise at least one binder receiving device, in particular a funnel, and at least one cylinder, wherein the cylinder is in fluid communication with the binder receiving device. In this way it can be ensured that the cylinder receives a predetermined amount of binder from the binder receiving device and releases it during an experiment. In this respect, mixing ratios can be precisely determined and / or adjusted.
- the spray device may comprise a control device, which is preferably designed to control at least the binder delivery device and / or the at least one additive delivery device and / or the compressor and / or a valve associated with the fluid source.
- a control device which is preferably designed to control at least the binder delivery device and / or the at least one additive delivery device and / or the compressor and / or a valve associated with the fluid source.
- a user may specify certain mixing ratios and / or flow rates, which are then translated by the controller into a corresponding control algorithm.
- the control device may comprise a memory device for storing calibration data.
- This calibration data can be stored and taken into account when executing a control algorithm. By the calibration it is possible to maintain a precisely predetermined mixing ratio and / or a precisely predetermined flow rate.
- the binder delivery device is designed to dispense a binder-water mixture, in particular a cement-water mixture, instead of the binder.
- a subsequent addition of water can be avoided. Since in the test environment only small amounts of the delivery mixture, e.g. a mortar or similar suspension, it is possible to already add water to the binder before adding appropriate additives. Complex mixing of liquid within the mixer and / or at the nozzle can be avoided.
- the spray application can be done with a predetermined pressure.
- Fig. 1 shows individual components of a spray device according to the invention.
- a compressor 10, a binder dispenser, namely a cement dispenser 20, and a hardener dispenser 30 are in fluid communication via a branched supply pipe 101.
- the supply pipe 101 opens into a nozzle 102, which allows the sprayer 100 to deliver a dispensing mixture.
- the compressor 10 is configured to dispense a propellant that effectively expels the dispensing mixture from the sprayer 100 at a predetermined rate. In this respect, the compressor 10 is substantially responsible for the speed with which the dispensing mixture exits the nozzle 102.
- the cement dispenser 20 provides a binder, cement or mixture of cement and water. This mixture is introduced into the supply pipe 101 due to a provided in the cement discharge device 20 cement piston pump 24 (see. Fig. 3 ) and accelerated by the propellant.
- the blowing agent eg compressed air
- the blowing agent is mixed with an additive, preferably a hardening accelerator, which is output by the additive delivery device 30.
- the additive delivery device 30 is provided a corresponding pump with a linear drive.
- Fig. 1 it is a purely schematic representation. Theoretically, it would be possible to mix the dispensing mixture only within the nozzle 102. In this respect, the individual distances in which the junctions of the additive delivery device 30, the compressor 10 and the cement delivery device 20 are provided can vary widely.
- Fig. 2 shows a cross section through an additive delivery device 30.
- the additive delivery device 30 has a piston 32 and a cylinder with a piston chamber 36 which receives the piston 32. At the end of the piston chamber 36, an outlet 35 is provided, which is in fluid communication with the supply pipe 101.
- the additive dispenser 30 includes a linear motor 31 that can move the piston 32 within the piston chamber 36. Piston 32, cylinder and linear motor 31 form a piston pump. When the piston 32 is moved toward the outlet 35, the additive delivery device 30 discharges an additive located in the piston chamber 36.
- the additive dispenser 30 may be configured to receive and act upon a cartridge with the additive by means of the piston 32 or any other means so that the contents of the cartridge, particularly from the outlet 35, exit.
- Fig. 3 shows a schematic cross section through the cement dispenser 20 of Fig. 1 , Again, a piston chamber 26 is provided within which a corresponding piston 22 can move. This piston 22 is driven by a linear motor 21.
- the mentioned components form a cemented piston pump 24.
- the cement delivery device 20 has a cement tank 27, which is in fluid communication with the outlet 25 of the piston chamber 26 via a T-tube 23.
- the T-tube 23 further connects to the supply pipe 101.
- check valves are provided, which make it possible to suck cement or a cement-water mixture from the cement tank 27 into the piston chamber 26 of the cement piston pump 24.
- the cement dispenser 20 may be used to introduce cement or a cement-water mixture into the supply pipe 101. This discharge occurs via the outlet 35, into the T-tube 23 and then into the supply tube 101.
- a corresponding valve prevents the return of the cement or mixture into the cement tank 27.
- Fig. 4 shows a schematic representation of a control device 60, which is designed to control the spray device 100 according to the invention.
- This control device 60 has a memory 65, which is designed to store program data and calibration data. Furthermore, an input device 62 and an output device 61 are provided which allow interaction with a user.
- the controller 60 is in communication with the linear motors 21, 31 of the cement dispenser 20 and the additive dispenser 30, respectively, and controls them appropriately. In effect, the controller 60 allows the user to enter a particular mixing ratio of cement and additive and an exit velocity of the dispensing mixture. Based on the calibration data, the control device 60 can determine how the linear motors 21, 31 are to be actuated, so that the predetermined mixing ratio is converted. Furthermore, there is a communicative connection to the compressor 10 so that the controller 60 can also adjust the flow rate of the propellant.
- the sprayer 100 has only one additive dispenser 30.
- further additive dispensing devices 30 can be provided, which introduce further additives into the supply tube 101.
- a corresponding introduction can take place separately from the other additives or in conjunction with them.
- a separate piping system may be provided for the additive dispensers 30 that allow mixing prior to entry into the supply pipe 101.
- a mixture of the additives take place only in the supply pipe 101.
- the controller 60 may develop a corresponding control strategy as required.
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Abstract
Description
Die vorliegende Anmeldung betrifft ein Spritzgerät sowie ein Verfahren zur Analyse einer Abgabemischung.The present application relates to a spraying apparatus and a method for analyzing a dispensing mixture.
Spritzgeräte, insbesondere Spritzbetonstrahler, werden eingesetzt, um eine Abgabemischung, z.B. ein Gemisch aus Spritzbeton oder Mörtel, aus einer Spritzdüse pneumatisch aufzutragen. Beim Aufbringen bzw. Auftragen des Betons per Spritzgerät spricht man von einem Einbauen. Ein besonderer Vorteil des Spritzbetons und des Einbauverfahrens besteht darin, dass mit dem Aufprall eine Verdichtung des Spritzbetons einhergeht. Zur Anwendung kommt Spritzbeton heute vor allem bei der Ausbesserung/Verstärkung von Betonbauteilen, sowie zur Felskonsolidierung, und insbesondere temporären, Ausbau im Tunnelbau. Die Anwendung des Verfahrens ist jedoch nicht auf diese Bereiche beschränkt. Ein Spritzgerät ist beispielsweise aus der
Beim Spritzvorgang prallt ein Teil des Spritzguts, der so genannte Rückprall ab, wodurch sich eine nicht unerhebliche Veränderung der Ausgangsmischung bzw. Abgabemischung ergibt. Diese Veränderung muss bei der Entwicklung einer Abgabemischung mit bestimmten Eigenschaften (z.B. Konsistenz, Verarbeitbarkeit, Anhärtungs- und/oder Aushärtungszeit, Festigkeit) berücksichtigt werden.During injection, a part of the injection molding, the so-called rebound rebounds, resulting in a significant change in the starting mixture or dispensing mixture. This change must be taken into account in the development of a dispensing mixture with certain properties (e.g., consistency, processability, hardening and / or curing time, strength).
Üblicherweise ist ein Beton ein Gemisch aus Zement, Gesteinskörnung und Anmachwasser bzw. Wasser. Häufig werden Additive hinzugefügt, um die Eigenschaften des Betons zu verändern. Insbesondere für Spritzbeton werden Additive in Form von Härtungsbeschleunigern verwendet. Die geeignete Auswahl der Zusammensetzung einer Abgabemischung ist sehr kompliziert, da es zu dem bereits erläuterten Materialverlust sowie zu physikalischen Veränderungen aufgrund des Verarbeitungsverfahrens kommt. Daher ist es äußerst aufwändig (kostenintensiv und zeitintensiv), eine geeignete Abgabemischung für bestimmte Anforderungen zu entwickeln. Beispielsweise müssen die Aushärtungszeit, Haftung auf der Auftrageoberfläche, Verarbeitungstemperatur usw. berücksichtigt werden.Usually, a concrete is a mixture of cement, aggregate and mixing water or water. Often, additives are added to alter the properties of the concrete. For shotcrete in particular, additives in the form of hardening accelerators are used. The proper selection of the composition of a dispensing mixture is very complicated, since it leads to the material loss already explained as well as physical changes due to the processing method. Therefore, it is extremely time-consuming (cost-intensive and time-consuming) to develop a suitable dispensing mixture for specific requirements. For example, the curing time, Adhesion on the application surface, processing temperature, etc. are taken into account.
Häufig wird eine geeignete Abgabemischung in einem iterativen Verfahren bestimmt. Hierfür muss die Abgabemischung mit herkömmlichen, sehr teuren Spritzgeräten aufgetragen und analysiert werden. Meist ist es notwendig für diese Tests große Mengen der Abgabemischung aufzutragen, da die herkömmlichen Spritzgeräte hierfür ausgelegt sind.Often, a suitable dispensing mixture is determined in an iterative process. For this purpose, the dispensing mixture must be applied and analyzed with conventional, very expensive sprayers. It is usually necessary to apply large quantities of the dispensing mixture for these tests since the conventional sprayers are designed for this purpose.
Daher ist es Aufgabe der vorliegenden Erfindung, ein Spritzgerät bereitzustellen, das einfach und kostengünstig herstellbar ist und das Auftrageverfahren von herkömmlichen Spritzgeräten bei geringen Abgabemengen ausreichend genau nachahmt.It is therefore an object of the present invention to provide a spray device which is simple and inexpensive to produce and which mimics the application process of conventional sprayers with low discharge quantities with sufficient accuracy.
Diese Aufgabe wird durch ein Spritzgerät gemäß Anspruch 1 gelöst. Insbesondere wird die Aufgabe durch ein Spritzgerät mit einer Düse zur Abgabe einer Abgabemischung gelöst, das umfasst:
- mindestens eine Bindemittelabgabeeinrichtung zur Abgabe mindestens eines Bindemittels, insbesondere von Zement;
- mindestens eine Additivabgabeeinrichtung zur Abgabe mindestens eines Additivs, insbesondere eines Erhärtungsbeschleunigers und/oder Erstarrungsbeschleunigers;
- mindestens eine Fluidquelle, insbesondere einen Kompressor, zur Bereitstellung eines Treibmittels;
- mindestens einen Mischer zur Vermischung des Bindemittels, des Additivs und des Treibmittels, wobei der Mischer zur Erzeugung eines Vorgemischs, umfassend das Treibmittel und das Additiv, und zur Mischung des Vorgemischs mit dem Bindemittel ausgebildet ist.
- at least one binder delivery device for dispensing at least one binder, in particular cement;
- at least one additive dispensing device for dispensing at least one additive, in particular a hardening accelerator and / or solidification accelerator;
- at least one fluid source, in particular a compressor, for providing a propellant;
- at least one mixer for mixing the binder, the additive and the blowing agent, wherein the mixer for forming a premix, comprising the blowing agent and the additive, and for mixing the premix is formed with the binder.
Die Fluidquelle kann eine Luft- und/oder Gasquelle, z.B. eine Gasflasche, sein. Ein wesentlicher Punkt der vorliegenden Erfindung besteht also darin, ein Spritzgerät bereitzustellen, das eine Spritzapplikation einer Abgabemischung ermöglicht. Die Abgabemischung kann eine Paste und/oder ein Zementgemisch und/oder ein Mörtelgemisch sein. Das Spritzgerät soll des Weiteren wie bei herkömmlichen Spritzgeräten üblich, eine Vermischung des vorzugsweise hydraulischen Bindemittels, z.B. Kalks und/oder Zements, des Additivs und des Treibmittels ermöglichen. Das erfindungsgemäße Spritzgerät gewährleistet dies, wobei sich das Verfahren im Labor nachstellen lässt.The fluid source may be an air and / or gas source, eg a gas cylinder. An essential point of the present invention is thus to provide a spray device which allows a spray application of a dispensing mixture. The dispensing mixture may be a paste and / or a cement mixture and / or a mortar mixture. Furthermore, as is the case with conventional sprayers, the sprayer is intended to mix the preferably hydraulic binder, eg lime and / or cement, of the additive and of the blowing agent enable. The sprayer according to the invention ensures this, with the method can be readjusted in the laboratory.
Das beanspruchte Spritzgerät ermöglicht eine einfache Simulation des Abgabeverfahrens und eine schnelle und einfache Reinigung.The claimed sprayer allows easy simulation of the dispensing process and quick and easy cleaning.
Das Additiv kann ein Härtungsbeschleuniger oder jeder beliebige andere Zusatzstoff sein.The additive may be a cure accelerator or any other additive.
Der Mischer kann eine Treibmittelleitung für den Transport des Treibmittels von der Fluidquelle zur Düse umfassen, wobei die Treibmittelleitung mindestens eine erste Einmündung für das mindestens eine Additiv und mindestens eine zweite Einmündung für das Bindemittel, insbesondere den Zement, umfasst, wobei die mindestens eine erste Einmündung stromaufwärts der zweiten Einmündung angeordnet ist. Für die Simulation des Abgabeverfahrens bzw. des Einbauens ist es hilfreich, wenn eine Mischung des Treibmittels mit dem Additiv vor einer Mischung dieses Vorgemischs mit dem Bindemittel erfolgt. Unter anderem können hierdurch besser wiederholbare Ergebnisse bei der Verwendung von geringen Mengen erzielt werden. Es wird ein hoher Durchmischungsgrad erreicht.The mixer may comprise a propellant conduit for transporting the propellant from the fluid source to the nozzle, the propellant conduit comprising at least a first junction for the at least one additive and at least one second confluence for the binder, in particular the cement, the at least one first confluence is arranged upstream of the second junction. For the simulation of the dispensing process or the incorporation, it is helpful if a mixture of the propellant with the additive takes place before mixing this premix with the binder. Among other things, this results in more repeatable results when using small amounts. It is achieved a high degree of mixing.
Das Spritzgerät kann mindestens eine dritte Einmündung zum Einbringen einer Reinigungsflüssigkeit in den Mischer, insbesondere in zumindest einen Abschnitt der Treibmittelleitung umfassen. Es ist also möglich, nach einem Test- oder Simulationslauf, bei dem ein bestimmtes Abgabegemisch abgegeben wird, das gesamte Spritzgerät, insbesondere den Mischer, mittels der Reinigungsflüssigkeit (z.B. Wasser) zu reinigen. Insofern ist es möglich, verschiedene Tests mit geringem Kostenaufwand durchzuführen und iterativ eine geeignete Mischung für bestimmte Anwendungsfälle zu bestimmen. Des Weiteren kann das Reaktionsverhalten des Spritzbetons in Abhängigkeit von bestimmten Parametern (z.B. Temperatur, verwendete Additive, usw.) analysiert werden.The sprayer may comprise at least a third junction for introducing a cleaning liquid into the mixer, in particular into at least a portion of the blowing agent line. It is thus possible, after a test or simulation run, in which a certain dispensing mixture is dispensed, to clean the entire spraying device, in particular the mixer, by means of the cleaning liquid (for example water). In this respect, it is possible to carry out various tests at low cost and iteratively to determine a suitable mixture for certain applications. Furthermore, the reaction behavior of the shotcrete can be analyzed depending on certain parameters (e.g., temperature, additives used, etc.).
Das Spritzgerät kann mit mindestens zwei Additivabgabeeinrichtungen ausgestattet sein, so dass diese ein erstes und ein zweites Additiv abgeben. Es ist vorteilhaft, wenn Tests durchgeführt werden können, bei denen sich unterscheidende Additive gleichzeitig oder zeitlich verzögert in die Abgabemischung eingebracht werden können.The sprayer may be equipped with at least two additive dispensers so that they deliver a first and a second additive. It is advantageous if tests can be carried out in which differing additives can be introduced into the dispensing mixture at the same time or with a time delay.
Die mindestens eine Additivabgabeeinrichtung kann eine Aufnahmeeinrichtung zur, insbesondere auswechselbaren, Aufnahme einer Kartusche umfassen. Vorzugsweise ist die Additivabgabeeinrichtung also dazu ausgebildet, Kartuschen aufzunehmen, die schnell und einfach gewechselt werden können. Insofern können unterschiedliche Additive für unterschiedliche Tests verwendet werden, ohne dass eine Reinigung von hierfür vorgesehenen Kammern der Additivabgabeeinrichtung durchgeführt werden muss.The at least one additive dispensing device may comprise a receiving device for, in particular interchangeable, receiving a cartridge. Preferably, the additive dispensing device is thus adapted to receive cartridges that can be changed quickly and easily. In this respect, different additives can be used for different tests, without having to carry out cleaning of chambers provided for this purpose of the additive dispensing device.
Die mindestens eine Additivabgabeeinrichtung und/oder die Bindemittelabgabeeinrichtung, insbesondere Zementabgabeeinrichtung, können mindestens einen linearen Antrieb (z.B. Spindelhubgetriebe, Linearmotor, etc.) zur Abgabe des Zements bzw. des Additivs umfassen. Bei der Verwendung eines linearen Antriebs ist es möglich, die Flussrate, Flussgeschwindigkeit und/oder Abgabemenge genau zu bestimmen. Insofern ist es in einfacher Weise möglich, wiederholbare Tests durchzuführen.The at least one additive delivery device and / or the binder delivery device, in particular the cement delivery device, may comprise at least one linear drive (for example screw jack, linear motor, etc.) for delivering the cement or the additive. When using a linear drive, it is possible to accurately determine the flow rate, flow rate and / or delivery rate. In this respect, it is easily possible to perform repeatable tests.
Die Bindemittelabgabeeinrichtung kann mindestens eine Bindemittelaufnahmeeinrichtung, insbesondere einen Trichter, und mindestens einen Zylinder umfassen, wobei der Zylinder mit der Bindemittelaufnahmeeinrichtung in fluider Verbindung steht. Hierdurch kann es sichergestellt werden, dass der Zylinder eine vorgegebene Menge von Bindemittel aus der Bindemittelaufnahmeeinrichtung aufnimmt und während eines Experiments abgibt. Insofern können Mischverhältnisse genau bestimmt und/oder eingestellt werden.The binder delivery device may comprise at least one binder receiving device, in particular a funnel, and at least one cylinder, wherein the cylinder is in fluid communication with the binder receiving device. In this way it can be ensured that the cylinder receives a predetermined amount of binder from the binder receiving device and releases it during an experiment. In this respect, mixing ratios can be precisely determined and / or adjusted.
Das Spritzgerät kann eine Steuereinrichtung umfassen, die vorzugsweise zur Steuerung zumindest der Bindemittelabgabeeinrichtung und/oder der mindestens einen Additivabgabeeinrichtung und/oder des Kompressors und/oder eines der Fluidquelle zugeordneten Ventils ausgebildet ist. Insofern ist es möglich, mittels des erfindungsgemäßen Spritzgeräts automatisiert Tests durchzuführen. Beispielsweise kann ein Benutzer bestimmte Mischverhältnisse und/oder Flussraten vorgeben, die dann von der Steuereinrichtung in einen entsprechenden Steueralgorithmus umgesetzt werden.The spray device may comprise a control device, which is preferably designed to control at least the binder delivery device and / or the at least one additive delivery device and / or the compressor and / or a valve associated with the fluid source. In this respect, it is possible to carry out automated tests by means of the sprayer according to the invention. For example, a user may specify certain mixing ratios and / or flow rates, which are then translated by the controller into a corresponding control algorithm.
Die Steuereinrichtung kann eine Speichereinrichtung zum Speichern von Kalibrierungsdaten umfassen. Insofern ist es möglich, verschiedene Testläufe mit dem erfindungsgemäßen Spritzgerät durchzuführen, um Kalibrierungsdaten zu ermitteln. Diese Kalibrierungsdaten können abgespeichert und bei der Ausführung eines Steueralgorithmus berücksichtigt werden. Durch die Kalibrierung ist es möglich, ein genau vorgegebenes Mischverhältnis und/oder eine genau vorgegebene Flussrate einzuhalten.The control device may comprise a memory device for storing calibration data. In this respect, it is possible to carry out various test runs with the sprayer according to the invention in order to determine calibration data. This calibration data can be stored and taken into account when executing a control algorithm. By the calibration it is possible to maintain a precisely predetermined mixing ratio and / or a precisely predetermined flow rate.
Vorzugsweise ist die Bindemittelabgabeeinrichtung dazu ausgebildet, ein Bindemittel-Wasser-Gemisch, insbesondere ein Zement-Wasser-Gemisch, an Stelle des Bindemittels abzugeben. Insofern kann eine spätere Zusetzung von Wasser vermieden werden. Da in der Testumgebung nur geringe Mengen von der Abgabemischung, z.B. einem Mörtel oder einer ähnlichen Suspension, erzeugt werden, ist es möglich, das Bindemittel bereits mit Wasser zu versetzen, bevor entsprechende Additive zugesetzt werden. Ein aufwändiges Einmischen von Flüssigkeit innerhalb des Mischers und/oder an der Düse kann vermieden werden.Preferably, the binder delivery device is designed to dispense a binder-water mixture, in particular a cement-water mixture, instead of the binder. In this respect, a subsequent addition of water can be avoided. Since in the test environment only small amounts of the delivery mixture, e.g. a mortar or similar suspension, it is possible to already add water to the binder before adding appropriate additives. Complex mixing of liquid within the mixer and / or at the nozzle can be avoided.
Die oben genannte Aufgabe wird des Weiteren durch ein Verfahren zur Analyse einer Abgabemischung und/oder zur Abstimmung einer Abgabemischung gemäß mindestens einer Anforderung gelöst, wobei das Verfahren die folgenden Schritte umfasst:
- Auswahl mindestens eines Additivs;
- Auswahl mindestens eines Mischverhältnisses zwischen dem mindestens einen Additiv und einem Bindemittel;
- Mischen des Additivs und des Bindemittels gemäß dem Mischverhältnis zur Herstellung der Abgabemischung;
- Spritz- oder Sprayapplizieren der Abgabemischung auf eine Oberfläche, insbesondere mittels eines Spritzgeräts wie bisher erläutert;
- Analysieren der applizierten Abgabemischung.
- Selection of at least one additive;
- Selecting at least one mixing ratio between the at least one additive and a binder;
- Mixing the additive and the binder according to the mixing ratio to prepare the dispensing mixture;
- Spray or spray application of the dispensing mixture on a surface, in particular by means of a sprayer as previously explained;
- Analyzing the applied dispensing mixture.
Für das Verfahren ergeben sich ähnliche Vorteile, wie diese bereits in Verbindung mit der Vorrichtung erläutert wurden.For the method, there are similar advantages, as they have already been explained in connection with the device.
Das Spritzapplizieren kann mit einem vorgegebenen Druck erfolgen.The spray application can be done with a predetermined pressure.
Weitere vorteilhafte Ausführungsformen ergeben sich anhand der Unteransprüche.Further advantageous embodiments will be apparent from the dependent claims.
Nachfolgend wird die Erfindung mittels mehrerer Ausführungsbeispiele beschrieben, die anhand von Abbildungen näher erläutert werden.The invention will be described by means of several embodiments, which are explained in more detail with reference to figures.
Hierbei zeigen:
- Fig. 1
- den schematischen Aufbau eines erfindungsgemäßen Spritzgeräts mit Zementabgabeeinrichtung und Additivabgabeeinrichtung;
- Fig. 2
- die detaillierte Ausgestaltung der Additivabgabeeinrichtung aus
Fig. 1 ; - Fig. 3
- die detaillierte Ausgestaltung der Zementabgabeeinrichtung aus
Fig. 1 ; - Fig. 4
- eine Steuereinrichtung zur Steuerung des Spritzgeräts aus
Fig. 1 .
- Fig. 1
- the schematic structure of a sprayer according to the invention with cement dispensing device and additive dispensing device;
- Fig. 2
- the detailed design of the additive dispensing device
Fig. 1 ; - Fig. 3
- the detailed design of the cement dispensing device
Fig. 1 ; - Fig. 4
- a control device for controlling the sprayer
Fig. 1 ,
In der nachfolgenden Beschreibung werden für gleiche und gleich wirkende Teile dieselben Bezugsziffern verwendet.In the following description, the same reference numerals are used for the same and like parts.
Die Zementabgabeeinrichtung 20 stellt ein Bindemittel, nämlich Zement oder eine Mischung aus Zement und Wasser, bereit. Diese Mischung wird in das Versorgungsrohr 101 aufgrund einer in der Zementabgabeeinrichtung 20 vorgesehenen Zementkolbenpumpe 24 (vgl.
Bei der Darstellung aus
Es ist möglich, die Additivabgabeeinrichtung 30 wie in der
Diese Steuereinrichtung 60 weist einen Speicher 65 auf, der dazu ausgebildet ist, Programmdaten sowie Kalibrierungsdaten zu speichern. Des Weiteren ist eine Eingabeeinrichtung 62 und eine Ausgabeeinrichtung 61 vorgesehen, die eine Interaktion mit einem Benutzer ermöglichen. Die Steuereinrichtung 60 steht in kommunikativer Verbindung mit den Linearmotoren 21, 31 der Zementabgabeeinrichtung 20 bzw. der Additivabgabeeinrichtung 30 und steuert diese in geeigneter Weise an. Im Endeffekt ermöglicht die Steuereinrichtung 60 es dem Benutzer, ein bestimmtes Mischverhältnis zwischen Zement und Additiv sowie eine Austrittsgeschwindigkeit der Abgabemischung einzugeben. Die Steuereinrichtung 60 kann anhand der Kalibrierungsdaten ermitteln, wie die Linearmotoren 21, 31 anzusteuern sind, so dass das vorgegebene Mischverhältnis umgesetzt wird. Des Weiteren existiert eine kommunikative Verbindung zu dem Kompressor 10, so dass die Steuereinrichtung 60 auch die Flussrate des Treibmittels einstellen kann.This
In dem vorhergehenden Ausführungsbeispiel weist das Spritzgerät 100 lediglich eine Additivabgabeeinrichtung 30 auf. Im Rahmen der Erfindung können jedoch weitere Additivabgabeeinrichtungen 30 vorgesehen werden, die weitere Additive in das Versorgungsrohr 101 einbringen. Ein entsprechendes Einbringen kann zeitlich getrennt von den anderen Additiven oder in Verbindung mit diesen erfolgen. Dementsprechend kann ein eigenes Leitungssystem für die Additivabgabeeinrichtungen 30 vorgesehen werden, das ein Mischen vor einem Einmünden in das Versorgungsrohr 101 ermöglicht. Alternativ kann eine Mischung der Additive erst in dem Versorgungsrohr 101 erfolgen. Die Steuereinrichtung 60 kann je nach Anforderung eine entsprechende Steuerstrategie entwickeln.In the previous embodiment, the sprayer 100 has only one
- 1010
- Kompressorcompressor
- 2020
- ZementabgabeeinrichtungCement delivery device
- 2121
- Linearmotorlinear motor
- 2222
- Kolbenpiston
- 2323
- T-RohrT-tube
- 2424
- ZementkolbenpumpeCement piston pump
- 2525
- Auslassoutlet
- 2626
- Kolbenkammerpiston chamber
- 2727
- Zement-TankCement tank
- 3030
- AdditivabgabeeinrichtungAdditive dispensing means
- 3131
- Linearmotorlinear motor
- 3232
- Kolbenpiston
- 3535
- Auslassoutlet
- 3636
- Kolbenkammerpiston chamber
- 6060
- Steuereinrichtungcontrol device
- 6161
- Ausgabeeinrichtungoutput device
- 6262
- Eingabeeinrichtunginput device
- 6565
- SpeicherStorage
- 100100
- Spritzgerätsprayer
- 101101
- Versorgungsrohrsupply pipe
- 102102
- Düsejet
Claims (14)
dadurch gekennzeichnet, dass
der Mischer zur Erzeugung eines Vorgemischs, umfassend das Treibmittel und das Additiv, und zur Mischung des Vorgemischs mit dem Bindemittel ausgebildet ist.
characterized in that
the mixer is for producing a premix comprising the blowing agent and the additive, and for mixing the premix with the binder is formed.
dadurch gekennzeichnet, dass
der Mischer eine Treibmittelleitung (101) für den Transport des Treibmittels von der Fluidquelle zur Düse (102) umfasst, wobei die Treibmittelleitung (102) mindestens eine erste Einmündung für das mindestens eine Additiv und mindestens eine zweite Einmündung für das Bindemittel umfasst, wobei die mindestens eine erste Einmündung stromaufwärts der zweiten Einmündung angeordnet ist.Sprayer according to claim 1,
characterized in that
the mixer comprises a propellant conduit (101) for transporting the propellant from the fluid source to the nozzle (102), the propellant conduit (102) comprising at least a first junction for the at least one additive and at least a second confluence of the binder; a first junction is located upstream of the second confluence.
gekennzeichnet durch
mindestens eine dritte Einmündung zum Einbringen einer Reinigungsflüssigkeit in den Mischer, insbesondere in zumindest einen Abschnitt der Treibmittelleitung (101).Sprayer according to one of the preceding claims,
marked by
at least a third junction for introducing a cleaning liquid into the mixer, in particular in at least a portion of the propellant conduit (101).
gekennzeichnet durch
mindestens zwei Additivabgabeeinrichtungen (30) zur Abgabe eines ersten und eines zweiten Additivs.Sprayer according to one of the preceding claims,
marked by
at least two additive dispensers (30) for dispensing a first and a second additive.
dadurch gekennzeichnet, dass
die mindestens eine Additivabgabeeinrichtung (30) eine Aufnahmeeinrichtung zur, insbesondere auswechselbaren, Aufnahme einer Kartusche umfasst.Sprayer according to one of the preceding claims,
characterized in that
the at least one additive dispensing device (30) comprises a receiving device for, in particular interchangeable, receiving a cartridge.
dadurch gekennzeichnet, dass
die mindestens eine Additivabgabeeinrichtung (30) und/oder die Bindemittelabgabeeinrichtung (20) mindestens einen Linearmotor (21, 31) zur Abgabe des Bindemittels bzw. des Additivs umfasst.Sprayer according to one of the preceding claims,
characterized in that
the at least one additive dispenser (30) and / or the binder dispenser (20) comprises at least one linear motor (21, 31) for dispensing the binder or the additive.
dadurch gekennzeichnet, dass
die Bindemittelabgabeeinrichtung (20) mindestens eine Bindemittelaufnahmeeinrichtung (27), insbesondere einen Trichter, und mindestens einen Zylinder (26) umfasst, wobei der Zylinder (26) mit der Bindemittelaufnahmeeinrichtung (27) derart in fluider Verbindung steht, dass der Zylinder (26) mit Bindemittel aus der Bindemittelaufnahmeeinrichtung (27) befüllbar ist.Sprayer according to one of the preceding claims,
characterized in that
the binder delivery device (20) comprises at least one binder receiving device (27), in particular a funnel, and at least one cylinder (26), the cylinder (26) being in fluid communication with the binder receiving device (27) such that the cylinder (26) cooperates with Binder from the binder receiving means (27) can be filled.
gekennzeichnet durch
eine Steuereinrichtung (60), die zur Steuerung zumindest der Bindemittelabgabeeinrichtung (20) und/oder der mindestens einen Additivabgabeeinrichtung (30) und/oder des Kompressors (30) und/oder eines der Fluidquelle zugeordneten Ventils ausgebildet ist.Sprayer according to one of the preceding claims,
marked by
a control device (60) which is designed to control at least the binder delivery device (20) and / or the at least one additive delivery device (30) and / or the compressor (30) and / or a valve associated with the fluid source.
dadurch gekennzeichnet, dass
die Steuereinrichtung (60) dazu ausgebildet ist, mittels der Bindemittelabgabeeinrichtung (20) eine vorgegebene Menge von Bindemittel innerhalb eines Testlaufs abzugeben.Sprayer according to one of the preceding claims, in particular according to claim 8,
characterized in that
the control device (60) is designed to emit a predetermined amount of binder within a test run by means of the binder delivery device (20).
dadurch gekennzeichnet, dass
die Steuereinrichtung (60) dazu ausgebildet ist, eine Flussrate, mit der die Bindemittelabgabeeinrichtung (20) Bindemittel abgibt und/oder mit der die mindestens eine Additivabgabeeinrichtung (30) das Additiv abgibt und/oder mit der die Fluidquelle das Treibmittel abgibt, gemäß einer Vorgabe einzustellen.Sprayer according to one of the preceding claims, in particular according to claim 8 or 9,
characterized in that
the control device (60) is designed to have a flow rate at which the binder delivery device (20) emits binder and / or with which the at least one additive delivery device (30) delivers the additive and / or with which the fluid source delivers the propellant, in accordance with a specification adjust.
dadurch gekennzeichnet, dass
die Steuereinrichtung (60) eine Speichereinrichtung (65) zum Speichern von Kalibrierungsdaten umfasst.Sprayer according to one of the preceding claims, in particular according to claim 10,
characterized in that
the control device (60) comprises a memory device (65) for storing calibration data.
dadurch gekennzeichnet, dass
die Bindemittelabgabeeinrichtung (20) dazu ausgebildet ist, ein Gemisch aus Wasser und Bindemittel abzugeben.Sprayer according to one of the preceding claims,
characterized in that
the binder dispenser (20) is adapted to dispense a mixture of water and binder.
dadurch gekennzeichnet, dass
das Spritzapplizieren mit einem vorgegebenen Druck erfolgt.Method according to claim 13,
characterized in that
the spray application is carried out with a predetermined pressure.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES11177017T ES2461995T3 (en) | 2011-08-09 | 2011-08-09 | Spraying device and process to analyze a release mixture |
EP20110177017 EP2556934B1 (en) | 2011-08-09 | 2011-08-09 | Spraying device and process for analyzing a release mixture |
PCT/EP2012/065482 WO2013020990A1 (en) | 2011-08-09 | 2012-08-07 | Spray device and method for analyzing a delivery mixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20110177017 EP2556934B1 (en) | 2011-08-09 | 2011-08-09 | Spraying device and process for analyzing a release mixture |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2556934A1 true EP2556934A1 (en) | 2013-02-13 |
EP2556934B1 EP2556934B1 (en) | 2014-04-16 |
Family
ID=46642529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20110177017 Not-in-force EP2556934B1 (en) | 2011-08-09 | 2011-08-09 | Spraying device and process for analyzing a release mixture |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2556934B1 (en) |
ES (1) | ES2461995T3 (en) |
WO (1) | WO2013020990A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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GB2521879B (en) * | 2014-03-21 | 2016-02-10 | Bacement Ltd | A method of forming concrete |
CN110895375B (en) | 2018-09-13 | 2020-12-22 | 江苏集萃智能液晶科技有限公司 | Flexible bistable light modulator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990011877A1 (en) * | 1989-03-31 | 1990-10-18 | Aliva Aktiengesellschaft | A concrete flow converter |
WO1996001700A1 (en) * | 1994-07-11 | 1996-01-25 | Reno And Son, Inc. | Process for applying low-cement castable refractory material |
DE4444405A1 (en) | 1994-12-14 | 1996-06-20 | Pro Aqua Geraete Gmbh | Spraying arrangement for shotcrete in dust free environment |
CH690758A5 (en) * | 1995-03-28 | 2001-01-15 | Mbt Holding Ag | Apparatus to add continuously additive to cement-based fluids |
-
2011
- 2011-08-09 ES ES11177017T patent/ES2461995T3/en active Active
- 2011-08-09 EP EP20110177017 patent/EP2556934B1/en not_active Not-in-force
-
2012
- 2012-08-07 WO PCT/EP2012/065482 patent/WO2013020990A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990011877A1 (en) * | 1989-03-31 | 1990-10-18 | Aliva Aktiengesellschaft | A concrete flow converter |
WO1996001700A1 (en) * | 1994-07-11 | 1996-01-25 | Reno And Son, Inc. | Process for applying low-cement castable refractory material |
DE4444405A1 (en) | 1994-12-14 | 1996-06-20 | Pro Aqua Geraete Gmbh | Spraying arrangement for shotcrete in dust free environment |
CH690758A5 (en) * | 1995-03-28 | 2001-01-15 | Mbt Holding Ag | Apparatus to add continuously additive to cement-based fluids |
Also Published As
Publication number | Publication date |
---|---|
WO2013020990A1 (en) | 2013-02-14 |
EP2556934B1 (en) | 2014-04-16 |
ES2461995T3 (en) | 2014-05-22 |
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