EP1370402A2 - Method for the application of mortar to an application surface - Google Patents

Method for the application of mortar to an application surface

Info

Publication number
EP1370402A2
EP1370402A2 EP02727254A EP02727254A EP1370402A2 EP 1370402 A2 EP1370402 A2 EP 1370402A2 EP 02727254 A EP02727254 A EP 02727254A EP 02727254 A EP02727254 A EP 02727254A EP 1370402 A2 EP1370402 A2 EP 1370402A2
Authority
EP
European Patent Office
Prior art keywords
mixer
mortar
mixture
spray nozzle
mixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02727254A
Other languages
German (de)
French (fr)
Other versions
EP1370402B1 (en
Inventor
Dietmar Zimmerlin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inotec GmbH Transport und Foerdersysteme
Inotec GmbH
Original Assignee
Inotec GmbH Transport und Foerdersysteme
Inotec GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inotec GmbH Transport und Foerdersysteme, Inotec GmbH filed Critical Inotec GmbH Transport und Foerdersysteme
Publication of EP1370402A2 publication Critical patent/EP1370402A2/en
Application granted granted Critical
Publication of EP1370402B1 publication Critical patent/EP1370402B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 which, after being produced in a compulsory mixer, is applied via a spray nozzle to an application surface to be coated.
  • the dry starting mixture is fed from the compulsory mixer via a wet spraying machine to the connected spray nozzle and sprayed onto the application area with the addition of propellant air.
  • the wet mixture is transported from the wet spraying machine to the spray nozzle as a compact mortar column. This mortar column is torn in the spray nozzle by compressed air. This creates the actual spray material, which is applied to the application area with a material-dependent air pressure and a correspondingly dependent air volume.
  • a disadvantage of this wet spray process is that longer spray interruptions of more than approximately 30 minutes are not possible.
  • the delivery range is limited to 50 m, which results in a small operating radius, and the delivery height is limited to approx. 30 m.
  • Hoses and machines must be stopped after more than approx. 30 minutes of spraying as well as after completion of the work, e.g. to be cleaned in the evening. This leads to a relatively high cleaning effort.
  • mortar remaining in the hose results in a noticeable loss of material.
  • the dry starting mixture is transported in an air stream through a delivery line to the spray nozzle.
  • the wetting and mixing process takes place with the addition of water (thin-stream conveyance).
  • Dry conveyance is easier to handle.
  • the mixing process takes place in the spray nozzle.
  • large delivery lengths and delivery heights between 40 to 150 m can be achieved.
  • the cleaning effort is comparatively less, since only loan nozzle mixer need to be cleaned. Longer spray interruptions are also possible.
  • a disadvantage of the dry spray technology is the fact that a greater rebound of 10 to 20% must be accepted due to the poorer moisture penetration. As a result, 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 in such a way 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 immediately 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 at it the application area is applied.
  • the promotion in dense current leads to sufficient moisture penetration of the material.
  • 1 denotes a silo for the starting material in the form of a dry mortar mixture, which is fed to a dry spraying machine 2 used.
  • propellant air also reaches the spraying machine 2 at a pressure of 1.5 to 3 bar, from which the mortar mixture carried with the propellant air passes through a transport hose 4, which can be more than 100 meters long, to a mixer in a steady thin stream 5 is passed, which is connected upstream of a spray nozzle 6.
  • the latter is in the drawing with the mixer 5 shown schematically as a unit, which in practice is about 60 to 70 cm long.
  • the mortar starting mixture is mixed with water supplied via a feed line 7 and arrives in the form of a mortar column, ie in a dense stream, at the outlet of the spray nozzle 6, in the area of which the material under the The pressure of the driving air introduced into it via a feed line 8 is separated from the dense stream, divided and sprayed in particulate form onto the application surface 9 to which the nozzle 6 is directed.
  • mixing and conveying elements e.g. a mixing and conveying shaft are exposed to the abrasive effect of the dry mortar that occurs over the conveying hose 4 at a speed of approx. 90 km / h.
  • This effect can be largely reduced by regulating the amount of the mixture fed to the mixer 5 as a function of the amount of mortar that is miscible with water in its area and can be moved further in the dense stream, so that the inlet side of the mixer 5 becomes a few centimeters thick due to a accumulation process
  • 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.
  • a probe 11 which measures the thickness of the respective mortar layer 10 on the input side of the mixer 5, is used to regulate the speed of the mixer 5.
  • the likewise resulting air backflow is derived from the end of the transport hose and is fed to the spray nozzle 6 in a controllable manner via an air hose 8 guided parallel to the dense flow.
  • Excess air is preferably discharged via a three-way valve 12 on the spray nozzle 6.
  • propellant air or an electric motor is used for driving the mixing and conveying process of the mixer 5.

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)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

In a method for applying a mortar mixture onto an application surface, a dry mortar starting mixture is prepared and conveyed by carrier air in a thin stream into a mixer arranged immediately upstream of a spray nozzle. The dry mortar starting mixture is mixed in the mixer with water to form a mortar-water mixture. The mortar-water mixture is moved in a dense stream to the spray nozzle. Compressed air is introduced into the spray nozzle and the mortar-water mixture is sprayed under the pressure of compressed air onto the application surface.

Description

Verfahren zum Auftragen von Mörtel auf eine Auftragsfläche Process for applying mortar to an application area
Die Erfindung bezieht sich auf ein Verfahren zum Auftragen eines Mörtelgemisches, das nach Herstellung in einem Zwangsmischer über eine Spritzdüse auf eine zu beschichtende Auftragsfläche aufgebracht wird.The invention relates to a method for applying a mortar mixture which, after being produced in a compulsory mixer, is applied via a spray nozzle to an application surface to be coated.
Bei einem bekannten Verfahren dieser Art wird das trockene Ausgangsgemisch vom Zwangsmischer über eine Naßspritzmaschine der angeschlossenen Spritzdüse' zugeführt und von dieser unter Treibluftbeigabe auf die Auftragsfläche aufgespritzt. Von der Naßspritzmaschine wird das nasse Gemisch als kompakte Mörtelsäule zur Spritzdüse transportiert. Diese Mörtelsäule wird in der Spritzdüse durch Preßluft zerrissen. So entsteht das eigentliche Spritzgut, welches mit einem materialabhängigen Luftdruck und einer entsprechend abhängigen Luftmenge auf die Auftragsfläche aufgebracht wird.In a known method of this type, the dry starting mixture is fed from the compulsory mixer via a wet spraying machine to the connected spray nozzle and sprayed onto the application area with the addition of propellant air. The wet mixture is transported from the wet spraying machine to the spray nozzle as a compact mortar column. This mortar column is torn in the spray nozzle by compressed air. This creates the actual spray material, which is applied to the application area with a material-dependent air pressure and a correspondingly dependent air volume.
Bei diesem Verfahren sind als Vorteile zu erwähnen: Ein gleichbleibender Wasser/Feststoff- Wert, da das Mischungsverhälts vorgegeben ist, dementsprechend gleichbleibende Qualität, niedriger Rückprall von ca. 2 bis 5% und aufgrund des Feuchtigkeitsgehalts des Ausgangsgemisches eine geringe Staubentwicklung sowie eine kontinuierliche Förderung des Mörtels im Dichtstromverfahren.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 starting mixture, a low level of dust development and continuous conveyance of the Mortar using the dense phase method.
Nachteilig ist bei diesem Naßspritzverfahren, daß längere Spritzunterbrechungen von mehr als ca. 30 Minuten nicht möglich sind. Die Förderweite ist auf 50 m beschränkt, woraus ein geringer Aktionsradius resultiert, und die Förderhöhe ist auf ca. 30 m beschränkt. Schläuche und Maschinen müssen nach mehr als ca. 30 Minuten Spritzunterbrechung sowie nach Abschluß der Arbeiten, z.B. am Abend gereinigt werden. Dies führt zu einem relativ hohen Reinigungsaufwand. Außerdem ergibt sich durch im Schlauch verbleibenden Mörtel ein fühlbarer Materialverlust.A disadvantage of this wet spray process is that longer spray interruptions of more than approximately 30 minutes are not possible. The delivery range is limited to 50 m, which results in a small operating radius, and the delivery height is limited to approx. 30 m. Hoses and machines must be stopped after more than approx. 30 minutes of spraying as well as after completion of the work, e.g. to be cleaned in the evening. This leads to a relatively high cleaning effort. In addition, mortar remaining in the hose results in a noticeable loss of material.
Bei einem weiteren bekannten Verfahren, dem sogenannten Trockenspritzverfahren wird das trockene Ausgangsgemisch im Luftstrom durch eine Förderleitung zur Spritzdüse transportiert. In dieser findet unter Zugabe von Wasser die Benetzung und der Mischvorgang statt (Dünnstromförderung).In a further known method, the so-called dry spray method, the dry starting mixture is transported in an air stream through a delivery line to the spray nozzle. In this, the wetting and mixing process takes place with the addition of water (thin-stream conveyance).
Bei diesem Verfahren ergeben sich folgende Vorteile: Die Trockenförderung ist mit einer einfacheren Handhabung verbunden. Der Mischvorgang erfolgt erst in der Spritzdüse. Gegenüber dem Naßspritzverfahren lassen sich große Förderlängen und Förderhöhen zwischen 40 bis 150 m erzielen. Der Reinigungsaufwand ist vergleichsweise geringer, da ledig- lieh Düsenmischkörper gereinigt werden müssen. Außerdem sind längere Spritzunterbrech- nungen möglich.The advantages of this process are as follows: Dry conveyance is easier to handle. The mixing process takes place in the spray nozzle. Compared to the wet spraying process, large delivery lengths and delivery heights between 40 to 150 m can be achieved. The cleaning effort is comparatively less, since only loan nozzle mixer need to be cleaned. Longer spray interruptions are also possible.
Von Nachteil ist bei der Trockenspritztechnik die Tatsache, daß aufgrund der schlechteren Durchfeuchtung ein größerer Rückprall von 10 bis 20% in Kauf zu nehmen ist. Infolgedessen ergibt sich auch eine relativ hohe Staubentwicklung.A disadvantage of the dry spray technology is the fact that a greater rebound of 10 to 20% must be accepted due to the poorer moisture penetration. As a result, there is also a relatively high level of dust.
Der Erfindung liegt die A u f g a b e zugrunde, das eingangs genannte Verfahren so weiter auszugestalten, daß auf einfache Weise die Vorteile des Naßspritzverfahrens mit denen des Trockenspritzverfahrens kombinierbar sind, ohne die genannten Nachteile beider Verfahren in Kauf nehmen zu müssen.The invention is based on the object of further developing the method mentioned at the outset in such a way 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.
Die technische L ö s u n g zeichnet sich im wesentlichen dadurch aus, daß das trockene Mörtel-Ausgangsgemisch in einem unmittelbar vor der Spritzdüse angeordneten Mixer 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. Die Förderung im Dichtstrom führt zu einer ausreichenden Durchfeuchtung des Materials.The technical solution is essentially characterized in that the dry mortar starting mixture is conveyed in a mixer arranged immediately 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 at it the application area is applied. The promotion in dense current leads to sufficient moisture penetration of the material.
Auf diese Weise lassen sich sowohl die Vorteile des Naßspritzverfahrens wie auch die des Trockenspritzverfahrens kombinieren: Da der Mörtel-Wasser-Mischvorgang erst im Bereich nahe der Spritzdüse stattfindet, ergibt sich aufgrund der Förderung in trockenem Zustand eine einfache Handhabung des Fördergutes, und es sind Förderlängen von weit über 100 m und auch große Förderhöhen erreichbar. Da es sich auf dem Weg zum Mixer um Trockenmörtel handelt, sind in sehr günstiger Weise auch längere Spritzunterbrechungen möglich. Auch am Einsatzort und seiner Umgebung ist nur eine geringe Verschmutzung gegeben, bedingt durch den geringen Rückprall von weniger als 5% und eine minimale Staubentwicklung.In this way, both the advantages of the wet spraying method and those of the dry spraying method can be combined: Since the mortar-water mixing process only takes place in the area near the spray nozzle, handling in the dry state results in easy handling of the material to be conveyed, and it is conveying lengths reachable from well over 100 m and also large delivery heights. Since it is dry mortar on the way to the mixer, longer interruptions in spraying are also very conveniently possible. There is also little contamination at the place of use and its surroundings, due to the low rebound of less than 5% and minimal dust generation.
Wird beim Abschalten zunächst nur die Materialzufuhr unterbunden, so wird die Misch- und Förderwelle durch den verbleibenden Luft- und Wasserstrom gereinigt.If only the material supply is cut off when switching off, the mixing and delivery shaft is cleaned by the remaining air and water flow.
In der beigefügten schematischen Darstellung des erfindungsgemäßen Prinzips zum Auftrag eines Mörtelgemisches ist mit 1 ein Silo für das Ausgangsmaterial in Form eines trockenen Mörtelgemisches bezeichnet, das einer zum Einsatz gelangenden Trocken-Spritzmaschine 2 zugeführt wird. Über eine Leitung 3 gelangt ferner Treibluft unter einem Druck von 1 ,5 bis 3 bar zur Spritzmaschine 2, von der das mit der Treibluft mitgeführte Mörtelgemisch über einen Transportschlauch 4, der mehr als 100 Meter lang sein kann, in einem stetigen Dünnstrom zu einem Mixer 5 geleitet wird, der einer Spritzdüse 6 vorgeschaltet ist. Letztere ist in der Zeichnung mit dem Mixer 5 schematisch als Einheit dargestellt, die in der Praxis ca.60 bis 70 cm lang ist. In dieser Einheit, nämlich im durch den Mixer 5 gebildeten Teil, wird das Mörtel-Ausgangsgemisch mit über eine Zufuhrleitung 7 zugeführtem Wasser gemischt und gelangt in Form einer Mörtelsäule, d.h. in einem Dichtstrom zum Ausgang der Spritzdüse 6, in dessen Bereich das Material unter dem Druck von an ihr über eine Zuleitung 8 eingeführter Treibluft vom Dichtstrom abgetrennt, zerteilt und partikelförmig an die Auftragsfläche 9 gespritzt wird, auf die die Düse 6 gerichtet ist.In the attached schematic representation of the principle according to the invention for applying a mortar mixture, 1 denotes a silo for the starting material in the form of a dry mortar mixture, which is fed to a dry spraying machine 2 used. Via a line 3, propellant air also reaches the spraying machine 2 at a pressure of 1.5 to 3 bar, from which the mortar mixture carried with the propellant air passes through a transport hose 4, which can be more than 100 meters long, to a mixer in a steady thin stream 5 is passed, which is connected upstream of a spray nozzle 6. The latter is in the drawing with the mixer 5 shown schematically as a unit, which in practice is about 60 to 70 cm long. In this unit, namely in the part formed by the mixer 5, the mortar starting mixture is mixed with water supplied via a feed line 7 and arrives in the form of a mortar column, ie in a dense stream, at the outlet of the spray nozzle 6, in the area of which the material under the The pressure of the driving air introduced into it via a feed line 8 is separated from the dense stream, divided and sprayed in particulate form onto the application surface 9 to which the nozzle 6 is directed.
Die im Mischer 5 wirksamen, in der Zeichnung nicht näher veranschaulichten Misch- und Förderorgane, z.B. eine Misch- und Förderwelle, sind der abrasiven Wirkung des über den Förderschlauch 4 mit einer Geschwindigkeit von ca. 90 km/Std auftretenden Trockenmörtels ausgesetzt. Dieser Effekt läßt sich durch eine solche Regelung der Menge des dem Mixer 5 zugeführten Gemisches in Abhängigkeit von der in seinem Bereich mit Wasser mischbaren und im Dichtstrom weiter bewegbaren Mörtelmenge weitgehend reduzieren, daß sich ein- gangsseitig 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 5 gelangen und ihre zerstörerische Wirkung entfalten können.The effective in the mixer 5, not shown in the drawing mixing and conveying elements, e.g. a mixing and conveying shaft are exposed to the abrasive effect of the dry mortar that occurs over the conveying hose 4 at a speed of approx. 90 km / h. This effect can be largely reduced by regulating the amount of the mixture fed to the mixer 5 as a function of the amount of mortar that is miscible with water in its area and can be moved further in the dense stream, so that the inlet side of the mixer 5 becomes a few centimeters thick due to a accumulation process 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.
Zur Verwendung gelangt dabei eine die Stärke der sich eingangsseitig des Mixers 5 bildenden jeweiligen Mörtelschicht 10 messenden Sonde 11 zur Regelung der Geschwindigkeit des Mixers 5.A probe 11, which measures the thickness of the respective mortar layer 10 on the input side of the mixer 5, is used to regulate the speed of the mixer 5.
In Verbindung mit dem Stauvorgang der Mörtelschicht 10 wird vom Transportschlauchende der sich gleichfalls ergebende Luftrückstau abgeleitet und über einen parallel zum Dichtstrom geleiteten Luftschlauch 8 der Spritzdüse 6 regelbar zugeführt.In connection with the accumulation process of the mortar layer 10, the likewise resulting air backflow is derived from the end of the transport hose and is fed to the spray nozzle 6 in a controllable manner via an air hose 8 guided parallel to the dense flow.
Überflüssige Luft wird vorzugsweise über ein Dreiwegeventil 12 an der Spritzdüse 6 abgeleitet.Excess air is preferably discharged via a three-way valve 12 on the spray nozzle 6.
Für den Antrieb des Misch- und Fördervorgangs des Mixers 5 findet bevorzugt Treibluft, oder ein Elektromotor Anwendung. For driving the mixing and conveying process of the mixer 5, preferably propellant air or an electric motor is used.

Claims

A n s p r ü c h e Expectations
1. 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, d a d u r c h g e k e n n z e i c h n e t , 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.1. A method of applying a mortar mixture which, after being produced in a compulsory mixer, as a dry mortar starting mixture by means of propellant air from a spraying machine (2) via a transport hose (4) in a thin stream to a spray nozzle (6) with which it is directed towards one Coating application area is applied, is promoted, characterized in that the dry mortar starting mixture is conveyed into a mixer (5) arranged directly in front of the spray nozzle (6), mixed in it with water, moved in a dense stream to the spray nozzle and under the pressure of your imported compressed air is applied to the application area.
2. 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.2. The method according to the preceding claim, characterized in that the speed of the mixer (5) can be regulated such that a few centimeters thick mortar layer (10) is formed on the input side of the mixer (5) in which the with the subsequent Mixture particles fed in thin stream are intercepted before they reach the mixing or conveying elements of the mixer.
3. Verfahren nach Anspruch 2, gekennzeichnet durch3. The method according to claim 2, characterized by
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).Use of a probe (11) measuring the strength of the respective mortar layer (10) forming on the input side of the mixer (5) to regulate the rotational speed of the mixing and delivery shaft of the mixer (5).
4. 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.4. The method according to any one of the preceding claims, characterized in that the mixture transporting the mixture from the spraying machine to the mixer in the thin stream in the region of the resulting air backflow at the end of the transport hose and via a parallel to the dense air hose of the spray nozzle (6) via a three-way valve (12) is fed controllably.
5. 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. 5. The method according to any one of the preceding claims, characterized in that a mixing and conveying shaft which can preferably be driven at a controllable speed is used as the mixing and conveying member of the mixer. Method according to claim 4 or 5, characterized in that propellant air or an electric motor is preferably used to drive the mixing and conveying operation of the mixer (5).
EP02727254A 2001-03-21 2002-03-20 Method for the application of plaster to an application surface Expired - Lifetime EP1370402B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10113785A DE10113785C1 (en) 2001-03-21 2001-03-21 Process for applying mortar to an application area
DE10113785 2001-03-21
PCT/DE2002/000997 WO2002076698A2 (en) 2001-03-21 2002-03-20 Method for the application of mortar to an application surface

Publications (2)

Publication Number Publication Date
EP1370402A2 true EP1370402A2 (en) 2003-12-17
EP1370402B1 EP1370402B1 (en) 2004-08-04

Family

ID=7678404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02727254A Expired - Lifetime EP1370402B1 (en) 2001-03-21 2002-03-20 Method for the application of plaster to an application surface

Country Status (6)

Country Link
US (1) US20050226092A1 (en)
EP (1) EP1370402B1 (en)
AT (1) ATE272475T1 (en)
DE (2) DE10113785C1 (en)
DK (1) DK1370402T3 (en)
WO (1) WO2002076698A2 (en)

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CN109098407A (en) * 2018-10-25 2018-12-28 浙江百施通智能科技有限公司 Float work head

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WO2002076698A2 (en) 2002-10-03
DK1370402T3 (en) 2004-12-06
EP1370402B1 (en) 2004-08-04
ATE272475T1 (en) 2004-08-15
WO2002076698A3 (en) 2002-11-28
US20050226092A1 (en) 2005-10-13
DE10113785C1 (en) 2002-12-12
DE50200758D1 (en) 2004-09-09

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