EP1370402B1 - Verfahren zum auftragen von mörtel auf eine auftragsfläche - Google Patents
Verfahren zum auftragen von mörtel auf eine auftragsfläche Download PDFInfo
- Publication number
- EP1370402B1 EP1370402B1 EP02727254A EP02727254A EP1370402B1 EP 1370402 B1 EP1370402 B1 EP 1370402B1 EP 02727254 A EP02727254 A EP 02727254A EP 02727254 A EP02727254 A EP 02727254A EP 1370402 B1 EP1370402 B1 EP 1370402B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixer
- mortar
- spray nozzle
- conveying
- air
- 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
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1431—Arrangements for supplying particulate material comprising means for supplying an additional liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
- B28B1/32—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by projecting, e.g. spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
-
- 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 method for applying a mortar mixture, the after production in a compulsory mixer via a spray nozzle onto a coating Application area is applied.
- the dry starting mixture from Compulsory mixer fed to the connected spray nozzle via a wet spraying machine and sprayed onto the application area with the addition of propellant air.
- the wet mixture is transported to the spray nozzle as a compact mortar column. This mortar column is torn apart by compressed air in the spray nozzle. This is how the real thing arises Spray material, soft with a material-dependent air pressure and a corresponding dependent amount of air is applied to the application area.
- the advantages of this process are: a constant water / solids value, since the mixing ratio is predetermined, correspondingly constant quality, low rebound of approx. 2 to 5% and due to the moisture content of the original mixture a low level of dust development and continuous conveying of the mortar in the dense phase process.
- the disadvantage of this wet spray process is that longer spray interruptions of more than 30 minutes are not possible.
- the delivery range is limited to 50 m, from which a Small operating radius results, and the delivery height is limited to approx. 30 m.
- hoses and machines must stop spraying after more than approx. 30 minutes and after completion the work, e.g. to be cleaned in the evening. This leads to a relatively high cleaning effort.
- mortar remaining in the hose creates a tangible Material loss.
- the so-called dry spray method the dry starting mixture is transported in the air flow through a delivery line to the spray nozzle.
- the wetting and mixing process takes place with the addition of water instead (thin-current funding). See e.g. EP-A-0 698 419.
- This method has the following advantages: easier handling connected.
- the mixing process takes place in the spray nozzle. Across from With the wet spray process, large delivery lengths and delivery heights can be between Achieve 40 to 150 m.
- the cleaning effort is comparatively less, since only Nozzle mixer need to be cleaned. There are also longer spray breaks possible.
- a disadvantage of the dry spray technology is the fact that due to the poorer Moisturization a greater rebound of 10 to 20% is to be accepted. Consequently there is also a relatively high level of dust.
- the invention is based on the object of further developing the method mentioned at the outset so that the advantages of the wet spraying method can be combined in a simple manner with those of the dry spraying method without having to accept the disadvantages of both methods mentioned.
- the technical solution is essentially characterized in that the dry mortar starting mixture is conveyed in a mixer arranged directly in front of the spray nozzle, mixed in it with water, moved in a dense stream to the spray nozzle and under the pressure of compressed air introduced onto it on the application surface is applied.
- the promotion in dense current leads to sufficient moisture penetration of the material.
- the Mortar starting mixture mixed with water supplied via a feed line 7 and arrives in the form of a mortar column, i.e. in a dense stream to the outlet of the spray nozzle 6, in the area of which the material is under pressure from it introduced via a feed line 8
- Driving air is separated from the dense stream, divided and particulate to the application surface 9 is injected onto which the nozzle 6 is directed.
- the effective in the mixer 5, not shown in the drawing mixing and Funding bodies, e.g. a mixing and conveying wave, are the abrasive effect of the over Conveyor hose 4 dry mortar occurring at a speed of about 90 km / h exposed.
- This effect can be achieved by regulating the amount of the mixer 5 supplied mixture depending on the miscible in its area with water and largely reduce the amount of mortar that can be moved further in the dense current, that is on the input side the mixer 5 through a jam a few centimeters thick mortar layer 10 forms in which the mixture particles supplied with the subsequent thin stream are intercepted before they reach the mixing or conveying elements of the mixer 5 and can develop their destructive effect.
- Excess air is preferably discharged via a three-way valve 12 on the spray nozzle 6.
- propellant air for driving the mixing and conveying process of the mixer 5 there is preferably propellant air, or an electric motor application.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Nozzles (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
Claims (6)
- Verfahren zum Auftragen eines Mörtelgemisches,
das nach Herstellung in einem Zwangsmischer als trockene Mörtel-Ausgangsmischung mittels Treibluft von einer Spritzmaschine (2) aus über einen Transportschlauch (4) in einem Dünnstrom zu einer Spritzdüse (6), mit der es auf eine zu beschichtende Auftragsfläche aufgebracht wird, gefördert wird,
dadurch gekennzeichnet, daß das trockene Mörtel-Ausgangsgemisch in einen unmittelbar vor der Spritzdüse (6) angeordneten Mixer (5) gefördert, in ihm mit Wasser gemischt, in einem Dichtstrom zur Spritzdüse bewegt und unter dem Druck von an ihr eingeführter Druckluft auf die Auftragsfläche aufgebracht wird. - Verfahren nach dem vorhergehenden Anspruch,
dadurch gekennzeichnet, daß die Geschwindigkeit des Mixers (5) derart regelbar ist, daß sich eingangsseitig des Mixers (5) durch einen Stauvorgang eine wenige Zentimeter dicke Mörtelschicht (10) bildet, in der die mit dem nachfolgenden Dünnstrom zugeführten Gemischpartikel abgefangen werden, ehe sie zu den Misch- bzw. Förderorganen des Mixers gelangen. - Verfahren nach Anspruch 2,
gekennzeichnet durch
Verwendung einer die Stärke der sich eingangsseitig des Mixers (5) bildenden jeweiligen Mörtelschicht (10) messenden Sonde (11) zur Regelung der Umdrehungsgeschwindigkeit der Misch- und Förderwelle des Mixers (5). - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die das Gemisch von der Spritzmaschine zum Mixer im Dünnstrom transportierende Luft im Bereich des sich am Transportschlauchende ergebenden Luftrückstaus abgeleitet und über einen parallel zum Dichtstrom geleiteten Luftschlauch der Spritzdüse (6) über ein Dreiwegeventil (12) regelbar zugeführt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß als Misch- und Förderorgan des Mixers eine vorzugsweise mit regelbarer Drehzahl antreibbare Misch- und Förderwelle verwendet wird. - Verfahren nach Anspruch 4 oder 5,
dadurch gekennzeichnet, daß für den Antrieb des Misch- und Förderorgangs des Mixers (5) bevorzugt Treibluft oder ein Elektromotor Anwendung findet.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10113785A DE10113785C1 (de) | 2001-03-21 | 2001-03-21 | Verfahren zum Auftragen von Mörtel auf eine Auftragsfläche |
DE10113785 | 2001-03-21 | ||
PCT/DE2002/000997 WO2002076698A2 (de) | 2001-03-21 | 2002-03-20 | Verfahren zum auftragen von mörtel auf eine auftragsfläche |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1370402A2 EP1370402A2 (de) | 2003-12-17 |
EP1370402B1 true EP1370402B1 (de) | 2004-08-04 |
Family
ID=7678404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02727254A Expired - Lifetime EP1370402B1 (de) | 2001-03-21 | 2002-03-20 | Verfahren zum auftragen von mörtel auf eine auftragsfläche |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050226092A1 (de) |
EP (1) | EP1370402B1 (de) |
AT (1) | ATE272475T1 (de) |
DE (2) | DE10113785C1 (de) |
DK (1) | DK1370402T3 (de) |
WO (1) | WO2002076698A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103470014B (zh) * | 2013-08-22 | 2016-07-06 | 三一汽车制造有限公司 | 砂浆喷涂机及其砂浆喷枪 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT504279B1 (de) * | 2006-09-25 | 2009-03-15 | Mwt Micro Wood Technology Gmbh | Beschichtungsvorrichtung |
DE102009007913A1 (de) | 2009-02-06 | 2010-08-19 | Sto Ag | Verfahren zum Auftragen einer viskosen, aushärtenden Beschichtungsmasse |
JP6284235B2 (ja) * | 2014-06-18 | 2018-02-28 | 日特建設株式会社 | 吹付けノズル装置 |
CN109098407A (zh) * | 2018-10-25 | 2018-12-28 | 浙江百施通智能科技有限公司 | 抹灰工作头 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2577664A (en) * | 1950-03-20 | 1951-12-04 | Jo Zach Miller | Discharge nozzle for hydrating cementitious substances under pressure |
US3907170A (en) * | 1970-08-20 | 1975-09-23 | Ivan Vasilievich Schedrin | Machine for application of powderlike material onto lining or surface of structure |
US3938786A (en) * | 1972-12-04 | 1976-02-17 | Jean Bernold | Apparatus for wet spraying of concrete |
SE383910B (sv) * | 1974-08-02 | 1976-04-05 | Sandell Bertil | Sett att tillverka betongkonstruktioner |
SE411724B (sv) * | 1976-10-26 | 1980-02-04 | Sandell Bertil | Sett och anordning for att en luftstrom tillfora material till ett munstycke |
US4046357A (en) * | 1976-12-03 | 1977-09-06 | Construction Systems & Equipment, Inc. | Shotcrete accelerator injection apparatus and method |
US4116368A (en) * | 1976-12-16 | 1978-09-26 | The United States Of America As Represented By The Secretary Of The Interior | Clog-free inorganic grout emplacement gun |
CH632646A5 (de) * | 1978-09-22 | 1982-10-29 | Intradym Masch Ag | Verfahren und vorrichtung zum spritzen von beton. |
US4298288A (en) * | 1980-01-25 | 1981-11-03 | Anthony Industries, Inc. | Mobile concreting apparatus and method |
US4411388A (en) * | 1981-03-26 | 1983-10-25 | Muck Jack E | Apparatus for conveying lightweight particulate matter |
DE8307902U1 (de) * | 1983-03-18 | 1983-11-17 | Schürenberg, Rudi, 4300 Essen | Mischrohr fuer den anschluss einer beton-trockenspritzmaschine |
NO162848C (no) * | 1987-09-11 | 1990-02-28 | Elkem As | Fremgangsmaate for tilsetning av silica stoev til en toerr sproeyte-betongblanding. |
DE9001123U1 (de) * | 1990-02-01 | 1991-05-29 | Schürenberg, Rudi, 4300 Essen | Mischrohr für den Anschluß einer Beton-Trockenspritzmaschine |
AT399899B (de) * | 1992-02-17 | 1995-08-25 | Burian Gmbh & Co Kg | Verfahren und vorrichtung zum monolithischen aufbringen einer dämm- und/oder brandschutzmasse auf eine fläche |
US5628940A (en) * | 1994-07-11 | 1997-05-13 | Reno & Son, Inc. | Process for applying low-cement castable refractory material |
DE9413836U1 (de) * | 1994-08-26 | 1995-07-13 | Rombold & Gfröhrer GmbH & Co. KG, 71254 Ditzingen | Anlage zum Spritzen von Trockenbaustoffen |
EP0779135A1 (de) * | 1995-12-14 | 1997-06-18 | Aliva Aktiengesellschaft | Verfahren zur automatischen Einstellung der ausgespritzten Menge einer Bauwerk-Ausspritzmischung und Anlage zum Ausspritzen von Bauwerken |
US5803596A (en) * | 1996-05-17 | 1998-09-08 | Stephens; Patrick J. | Method and apparatus for high capacity production of finished aqueous foam with continuously adjustable proportioning |
US5976632A (en) * | 1997-03-13 | 1999-11-02 | North American Refractories Co. | Dry process gunning of refractory castable |
US6004626A (en) * | 1998-07-10 | 1999-12-21 | North American Refractories Co. | High pressure/volume process for wet shotcreting a refractory castable |
US5979797A (en) * | 1998-08-14 | 1999-11-09 | Castellano; Michael A. | Handheld pressurized hopper gun and method |
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 |
-
2001
- 2001-03-21 DE DE10113785A patent/DE10113785C1/de not_active Expired - Fee Related
-
2002
- 2002-03-20 EP EP02727254A patent/EP1370402B1/de not_active Expired - Lifetime
- 2002-03-20 DE DE50200758T patent/DE50200758D1/de not_active Expired - Lifetime
- 2002-03-20 DK DK02727254T patent/DK1370402T3/da active
- 2002-03-20 AT AT02727254T patent/ATE272475T1/de active
- 2002-03-20 WO PCT/DE2002/000997 patent/WO2002076698A2/de active Application Filing
- 2002-03-20 US US10/471,821 patent/US20050226092A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103470014B (zh) * | 2013-08-22 | 2016-07-06 | 三一汽车制造有限公司 | 砂浆喷涂机及其砂浆喷枪 |
Also Published As
Publication number | Publication date |
---|---|
WO2002076698A3 (de) | 2002-11-28 |
DE10113785C1 (de) | 2002-12-12 |
DE50200758D1 (de) | 2004-09-09 |
US20050226092A1 (en) | 2005-10-13 |
DK1370402T3 (da) | 2004-12-06 |
WO2002076698A2 (de) | 2002-10-03 |
EP1370402A2 (de) | 2003-12-17 |
ATE272475T1 (de) | 2004-08-15 |
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