EP0698419B1 - Anlage zum Spritzen von Trockenbaustoffen - Google Patents
Anlage zum Spritzen von Trockenbaustoffen Download PDFInfo
- Publication number
- EP0698419B1 EP0698419B1 EP94119189A EP94119189A EP0698419B1 EP 0698419 B1 EP0698419 B1 EP 0698419B1 EP 94119189 A EP94119189 A EP 94119189A EP 94119189 A EP94119189 A EP 94119189A EP 0698419 B1 EP0698419 B1 EP 0698419B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- silo
- line
- water
- compressed air
- spray nozzle
- 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
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
- B28C7/062—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors with a pneumatic or hydraulic conveyor
-
- 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 invention relates to a plant for spraying Dry building materials, especially for the application of Shotcrete and shotcrete in dry spraying according to the preamble of claim 1.
- Dry spraying generally uses dry concrete or earth-moist concrete, or spray mortar through a Injection machine fed to a conveyor line and Thin stream conveyed with compressed air to a spray nozzle where the addition water, if necessary with concrete additives, is added.
- Shotcrete and shotcrete are in the Mountain and construction pit protection, for the lining of Cavity structures, as well as for the reinforcement or renovation of Components used.
- Typical applications for shotcrete are: tunnel and tunnel construction, mining, slope and Building pit protection, concrete renovation and joint spraying.
- a generic system for spraying Dry building materials usually include a compressor, a spraying machine, a construction site silo, one Thin power line, a water connection, a Water supply line, a high pressure device for the Water supply, as well as a spray nozzle in which the Thin power line and the water supply line merged become.
- the deployment mix for the dry spraying process with silo vehicles to the Transported to the construction site and stored there in one Construction site silo using a pneumatic Introduced conveyor.
- the construction site silo instructs a discharge device on its outlet funnel, the usually with a water connection for pre-moistening of the preparation mixture is provided and by means of the supply mixture dosed into the collecting funnel is delivered to a separate spraying machine.
- Such a generic injection machine is known for example from DE 33 11 841 A1 and has the Task, the delivery mix from the throw-in funnel dosed and checked in the by the spraying machine to deliver the guided compressed air flow.
- the compressed air flow arises from the fact that the compressor has compressed air with about 5 up to 7 bar in the compressed air line of the spraying machine blows in.
- the compressed air and the pre-humidified Deployment mix are then subsequently by the attached to the injection machine thin current line up to Blown spray nozzle, where an adjustable amount of mixing water is added.
- US-A-3 907 170 discloses a plant for spraying powder-like material with a spray nozzle and a Line through which the powder-like with air as the conveying medium Material is conveyed to the spray nozzle. More air than Pumped medium is fed directly to the spray nozzle. Fluid is fed to the spray nozzle by a pump under pressure and humidifies the powder-like material before it leaves the Spray nozzle.
- the disadvantage of this prior art is that high equipment expenditure with several pumps, one Screw conveyor for the powder-like material and several separate supply lines directly to the spray nozzle.
- To the Spray nozzles of the prior art mentioned are several Lines connected so that the spray nozzle of the mentioned prior art a variety of forces act and the movement of the spray nozzle through the many connections are severely restricted.
- the spray nozzle with the many supply lines is therefore permanently attached to the Plant for spraying powder-like material and only limited mobility.
- the invention is based on this prior art hence the task of a plant for spraying Dry building materials, especially for the application of Shotcrete and shotcrete in dry spraying To provide which while avoiding the disadvantages of outlined prior art much simpler, less expensive and less prone to failure to install and operate.
- a third branch of compressed air is from Compressor goes out, for loading the construction site silo or the silo vehicle with compressed air with the construction site silo or connected to the silo vehicle itself.
- Compressor goes out, for loading the construction site silo or the silo vehicle with compressed air with the construction site silo or connected to the silo vehicle itself.
- the moistening device has a Mixing device for mixing water and if necessary, additives in the compressed air flow is connected upstream: the mixing water can Contact with the thin stream in the in the mixing device incoming compressed air are swirled and accelerated, which ultimately leads to a more even moistening of the Injection material leads.
- control unit for regulating the Flow of water and any additives arranged; this control unit is preferably over a control line with one in the thin current line in the Moisture sensor arranged near the spray nozzle. From there, a nozzle can also be drawn by hand Influencing the control unit take place.
- the system according to the invention thus recognizes when too little or too much mixing water got into the thin stream and corrected the water inflow automatically.
- the quality of the Spray coatings produced by this control loop significantly increased.
- the moistening device is preferably several meters Upstream of the spray nozzle in the thin power line arranged so that the thin stream to exit from the Spray nozzle can be optimally moistened.
- the discharge device in the system according to the invention expediently consists essentially of one per se known rotary valve or one, for example conventional injection molding machine known rotor valve. With such a discharge device is reliable ensures that the pressure from the thin power line is not Hit back into the construction site silo or silo vehicle can. If all silos are pressure silos with 6 - 7 bar can also be used on the rotary valve or the rotor valve can be dispensed with.
- Figure 1 shows the basic structure of a Plant according to the invention for spraying Dry building materials.
- the loading of the construction site silo 7 through the compressor 3 via a water separator 18 in the pressure line 17 to any undesirable Moisture from the supply mixture in the construction site silo 7 keep away. Due to the resulting overpressure in the Construction site silo 7 will spread the Deployment mixture via the outlet funnel 8 in the Discharge device 6 facilitated.
- the compressed air flow, the Coming from the compressor 3 via the compressed air line 20 in the discharge device 6 arrives from the Construction site silo 7 coming supply mix from Dry building materials with and, now as a thin stream, gets through the thin current line 2 via the humidification device 11 into the spray nozzle 1.
- a third coming from the compressor 3 Compressed air flow flows through the compressed air line 19 into the upstream of the moistening device 11
- Mixing device 12 where it swirls the mixing water and finely distributed into the Humidification device 11 takes the thin-current line 2.
- the inflow of the mixing water from the water connection 4 in the mixing device 12 is via a control device 13, which in the water supply line 5 sits, regulated, in Dependency of a signal on the moisture sensor 15, which in the Spray nozzle 1 sits and via the control line 14 with the Control device 13 is connected. If necessary, in addition to Mixing water additives to be introduced into the thin stream are in the water supply line 5 via the metering line 16 brought in.
- FIG. 2 shows an embodiment of an inventive Plant on larger construction sites.
- Compressor 3 Coming compressed air branches into the Compressed air line 19 and the compressed air line 20, the Compressed air line 19 via the mixing device 12 in the Humidification device 11 opens, the compressed air line 20th against the discharge device 6 in the Thin power line 2.
- the Discharge device 6 on the outlet funnel 8 Site silos 7 attached. It becomes clear that the System of the system according to the invention is closed and no dust is generated when the thin current is created is to be feared.
- the humidifier 11 in the Thin current line 2 and the mixing device 12 are in the shown example in both cases mixing tubes.
- the Mixing water thus comes from the water connection 4 via the Water supply line 5 in the form of a mixing tube Mixing device 12 is swirled there in the compressed air stream and finely divided accelerated to then also in the Mixing tube trained humidification device 11 in the Thin current line 2 to arrive.
- the humidifier 11 is about 5 meters from the spray nozzle 1, whereby the spray material on the way to the spray nozzle 1 again Has the opportunity to soak evenly before it sprayed through the spray nozzle 1 onto the application surface 21 becomes.
- the added amount of mixing water is also in this example regulated by a control device 13, which via the control line 14 with a moisture sensor 15, the sits in the spray nozzle 1, is connected. It can also be one Influenced by the nozzle guide take place.
- the system according to the invention shown in Figure 3 consists essentially of the same elements as the system from Figure 2. Instead of a construction site silo 7 here, however, the supply mix is directly from the Silo vehicle 9 removed for spraying. For this purpose which is attached to the outlet opening 10 of the silo vehicle 9 Discharge device 6 via the compressed air line 20 with the Compressor 3 and via the thin current line 2 with the Spray nozzle 1 connected.
- the water admixture and regulation is identical to the example in FIG. 2.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Nozzles (AREA)
- Fertilizers (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Description
- Figur 1
- eine Prizipsskizze einer erfindungsgemäßen Anlage.
- Figur 2
- eine schematische Darstellung einer erfindungsgemäßen Anlage mit Baustellensilo.
- Figur 3
- eine schematische Darstellung einer erfindungsgemäßen Anlage ohne Baustellensilo.
- 1
- Spritzdüse
- 2
- Dünnstromleitung
- 3
- Kompressor
- 4
- Wasseranschluß
- 5
- Wasserzuleitung
- 6
- Austragsvorrichtung
- 7
- Baustellensilo
- 8
- Auslaßtrichter von 7
- 9
- Silofahrzeug
- 10
- Auslaßöffnung von 9
- 11
- Befeuchtungsvorrichtung
- 12
- Mischvorrichtung
- 13
- Regelgerät
- 14
- Steuerleitung
- 15
- Feuchtesensor
- 16
- Dosierleitung
- 17
- Druckleitung
- 18
- Wasserabscheider
- 19
- Druckluftleitung
- 20
- Druckluftleitung
- 21
- Auftragsfläche
Claims (7)
- Anlage zum Spritzen von Trockenbaustoffen, insbesondere für das Auftragen von Spritzbeton und Spritzmörtel im Trockenspritzverfahren, mit einer Spritzdüse (1), einer überdruckfesten Dünnstromleitung (2), einem Kompressor (3), einem Wasseranschluß (4), sowie einer Wasserzuleitung (5) zum Einbringen von Wasser und gegebenenfalls Zusatzmitteln in die Dünnstromleitung (2),
dadurch gekennzeichnet,
daß der Kompressor (3) eine Austragsvorrichtung (6) zur dosierten Abgabe des Bereitstellungsgemisches in die Dünnstromleitung (2), welche Austragsvorrichtung direkt am Auslaßtrichter (8) eines Silos (7), eines Drucksilos (6 - 7 bar), eines Baustellensilos, eines Wechselsilos oder direkt an der Auslaßöffnung (10) eines Silofahrzeugs (9) angebracht ist, und zugleich eine in der Dünnstromleitung (2) angeordnete, mit der Wasserzuleitung (5) verbundene Befeuchtungsvorrichtung (11) mit Druckluft versorgt und daß die Befenchtungsvorrichtung mehrere Meter stromaufwärts der Spritzdüse (1) in der Dünnstromleitung (2) angeordnet ist. - Anlage nach Anspruch 1,
dadurch gekennzeichnet,
daß der Kompressor (3) zur Beaufschlagung des Silos (7), eines Drucksilos (6 - 7 bar), eines Baustellensilos, eines Wechselsilos oder des Silofahrzeugs (9) mit Druckluft zusätzlich direkt mit dem Baustellensilo, Wechselsilo (7) oder dem Silofahrzeug (9) verbunden ist. - Anlage nach Anspruch 1,
dadurch gekennzeichnet,
daß der Befeuchtungsvorrichtung (11) eine Mischvorrichtung (12) zum Zumischen von Wasser und gegebenenfalls Zusatzmitteln in den Druckluftstrom vorgeschaltet ist. - Anlage nach Anspruch 1,
dadurch gekennzeichnet,
daß in der Wasserzuleitung (5) ein Regelgerät (13) zur Regulierung der Zuflußmenge von Wasser und gegebenenfalls Zusatzmitteln angeordnet ist. - Anlage nach Anspruch 4,
dadurch gekennzeichnet,
daß das Regelgerät (13) über eine Steuerleitung (14) mit einem in der Dünnstromleitung (2) in der Nähe der Spritzdüse (1) angeordneten Feuchtesensor (15) verbunden ist. - Anlage nach Anspruch 4,
dadurch gekennzeichnet,
daß das Regelgerät vom Düsenführer bei Handsteuerung betätigbar ist. - Anlage nach Anspruch 1
dadurch gekennzeichnet,
daß die Austragsvorrichtung (6) im wesentlichen aus einer Zellradschleuse oder einem Rotorventil besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9413836U | 1994-08-26 | ||
DE9413836U DE9413836U1 (de) | 1994-08-26 | 1994-08-26 | Anlage zum Spritzen von Trockenbaustoffen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0698419A1 EP0698419A1 (de) | 1996-02-28 |
EP0698419B1 true EP0698419B1 (de) | 1999-05-12 |
Family
ID=6912903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94119189A Expired - Lifetime EP0698419B1 (de) | 1994-08-26 | 1994-12-06 | Anlage zum Spritzen von Trockenbaustoffen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0698419B1 (de) |
AT (1) | ATE179912T1 (de) |
DE (2) | DE9413836U1 (de) |
ES (1) | ES2134310T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10023170B4 (de) * | 2000-05-11 | 2006-04-27 | Kurt Wolf VELCO Gesellschaft für Förder-, Spritz- und Silo-Anlagen mbH | Vorrichtung zur Befeuchtung von trockenen Spritzmassen in der Förderleitung |
US7094364B2 (en) | 2003-11-26 | 2006-08-22 | General Electric Company | Method of authenticating polymers, authenticatable polymers, methods of making authenticatable polymers and authenticatable articles, and articles made there from |
US7169615B2 (en) | 2003-11-26 | 2007-01-30 | General Electric Company | Method of authenticating polymers, authenticatable polymers, methods of making authenticatable polymers and authenticatable articles, and articles made there from |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19838710C2 (de) * | 1998-08-26 | 2002-03-21 | Spritzbeton Stuttgart Gmbh & C | Verfahren zur Herstellung spritzfertigen Spritzbetons |
DE19851913C2 (de) * | 1998-11-11 | 2001-02-15 | Rombold & Gfroehrer Gmbh & Co | Verfahren zum Herstellen eines Spritzbetons oder Spritzmörtels |
DE10113785C1 (de) * | 2001-03-21 | 2002-12-12 | Inotec Gmbh | Verfahren zum Auftragen von Mörtel auf eine Auftragsfläche |
FR2832349A1 (fr) * | 2001-11-20 | 2003-05-23 | Lafarge Mortiers Sa | Installation de preparation et de transport de mortier |
DE102005015841B4 (de) * | 2005-04-06 | 2009-04-30 | Sto Ag | Vorrichtung zum Verarbeiten von Baumaterial |
DE102007004768A1 (de) * | 2007-01-31 | 2008-08-07 | Knauf Marmorit Gmbh | Durchlaufmischer zum Anmachen von Mörtel, insbesondere Werktrockenmörtel, mit Wasser und Verfahren zum Bearbeiten von Wärme zu dämmenden Fertigwandelementen für Gebäude mit Hilfe eines derartigen Durchlaufmischers |
CN103741938B (zh) * | 2014-01-13 | 2016-01-06 | 北京科技大学 | 一种干粉快速湿喷的方法 |
CH709592A1 (de) * | 2014-05-05 | 2015-11-13 | Charly Pfammatter | Verfahren zum Spritzen von Beton mittels Druckluft. |
CN107288323B (zh) * | 2017-04-28 | 2018-10-19 | 张晓宇 | 一种全自动混凝土喷涂机的控制*** |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE451315C (de) * | 1927-10-25 | Cie Ingersoll Rand | Verfahren und Vorrichtung zum Aufspritzen von Moertel und aehnlichem Spritzgut | |
US1223586A (en) * | 1916-08-22 | 1917-04-24 | Pittsburgh Plate Glass Co | Cement-gun apparatus. |
US2929436A (en) * | 1957-10-17 | 1960-03-22 | Goodyear Aircraft Corp | Method and apparatus for spraying a mixture of fibers and resin material |
AU422340B2 (en) * | 1967-05-25 | 1972-03-10 | Quigley Company, Inc | Furnace repair gun |
US3907170A (en) * | 1970-08-20 | 1975-09-23 | Ivan Vasilievich Schedrin | Machine for application of powderlike material onto lining or surface of structure |
DE2349950A1 (de) * | 1973-10-04 | 1975-04-24 | Lonza Werke Gmbh | Verfahren und vorrichtung zum herstellen und verspritzen einer gebrauchsfertigen moertelmasse |
CH632646A5 (de) * | 1978-09-22 | 1982-10-29 | Intradym Masch Ag | Verfahren und vorrichtung zum spritzen von beton. |
DE3311841A1 (de) * | 1983-03-31 | 1984-10-04 | OCMER di Messina P.I. Vittorio, Nerviano, Milano | Spritz- und foerdervorrichtung fuer trockenes material in pulver- oder granulatform fuer das bauwesen und die industrie |
DE3600547A1 (de) * | 1986-01-10 | 1987-07-16 | Readymix Transportbeton Gmbh | Verfahren und vorrichtung zum herstellen und foerdern eines baustoffes |
DE3618735A1 (de) * | 1986-06-04 | 1987-12-10 | Maurer Dietrich | Beton-nassspritzmaschine |
DE3641947A1 (de) * | 1986-12-09 | 1988-06-23 | Tubag Trass Zement Stein | Verfahren zum aufbereiten von spritzmoertel oder spritzbeton sowie anlage zur durchfuehrung des verfahrens |
EP0305748A3 (de) * | 1987-09-04 | 1990-05-02 | Ransburg-Gema AG | Pulveraufbereitungsanlage für Beschichtungspulver |
CH678552A5 (de) * | 1989-03-02 | 1991-09-30 | Sandoz Ag | |
US5167714A (en) * | 1989-09-29 | 1992-12-01 | Nordson Corporation | Powder coating system with configurable controller and dew point detection |
DE4002777A1 (de) * | 1990-01-31 | 1991-08-01 | Harry Dipl Ing Reinhardt | Wassermengensteuerung an einer maschine zur verarbeitung von moerteln |
DE4234745A1 (de) * | 1992-10-15 | 1994-04-21 | Pft Putz & Foerdertech | Verfahren und Vorrichtung zum Auftragen eines Mörtels oder Betons durch Spritzen |
DE4329568C2 (de) * | 1993-09-02 | 1997-04-17 | Kraus Hans Bernd | Vorrichtung zur Förderung eines trockenen, streufähigen Baustoffes und Verfahren zur Anwendung dieser Vorrichtung im Lehmbau |
-
1994
- 1994-08-26 DE DE9413836U patent/DE9413836U1/de not_active Expired - Lifetime
- 1994-12-06 AT AT94119189T patent/ATE179912T1/de not_active IP Right Cessation
- 1994-12-06 ES ES94119189T patent/ES2134310T3/es not_active Expired - Lifetime
- 1994-12-06 DE DE59408253T patent/DE59408253D1/de not_active Expired - Fee Related
- 1994-12-06 EP EP94119189A patent/EP0698419B1/de not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10023170B4 (de) * | 2000-05-11 | 2006-04-27 | Kurt Wolf VELCO Gesellschaft für Förder-, Spritz- und Silo-Anlagen mbH | Vorrichtung zur Befeuchtung von trockenen Spritzmassen in der Förderleitung |
US7094364B2 (en) | 2003-11-26 | 2006-08-22 | General Electric Company | Method of authenticating polymers, authenticatable polymers, methods of making authenticatable polymers and authenticatable articles, and articles made there from |
US7169615B2 (en) | 2003-11-26 | 2007-01-30 | General Electric Company | Method of authenticating polymers, authenticatable polymers, methods of making authenticatable polymers and authenticatable articles, and articles made there from |
Also Published As
Publication number | Publication date |
---|---|
ATE179912T1 (de) | 1999-05-15 |
DE59408253D1 (de) | 1999-06-17 |
EP0698419A1 (de) | 1996-02-28 |
DE9413836U1 (de) | 1995-07-13 |
ES2134310T3 (es) | 1999-10-01 |
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