EP0578968A1 - Foaming apparatus for the production of construction foam - Google Patents

Foaming apparatus for the production of construction foam Download PDF

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Publication number
EP0578968A1
EP0578968A1 EP93109240A EP93109240A EP0578968A1 EP 0578968 A1 EP0578968 A1 EP 0578968A1 EP 93109240 A EP93109240 A EP 93109240A EP 93109240 A EP93109240 A EP 93109240A EP 0578968 A1 EP0578968 A1 EP 0578968A1
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EP
European Patent Office
Prior art keywords
foam
pump
water
production
hose
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Granted
Application number
EP93109240A
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German (de)
French (fr)
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EP0578968B1 (en
Inventor
Dieter Meier
Heinz Ruppert
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ZTI ZEMENTSCHAUM-TECHNIK INTERNATIONAL GMBH
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RUME Maschinenbau GmbH
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Publication of EP0578968A1 publication Critical patent/EP0578968A1/en
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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
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam

Definitions

  • the invention relates to a foam device for the production of construction foam, in particular prefabricated foam for the production of aerated concrete (foam concrete) and fresh factory mortar, with a mixing device for a water / foam mixture, a pump, a compressed air source and a foam hose that can be connected to the foam chamber with a closure member.
  • both the foaming agent on the one hand and the water on the other hand are sucked in and fed via a pump to a foam pipe with a large number of inlet openings, in which the foam is formed and below from the relatively long and always vertically mountable foam pipe exit.
  • the invention is therefore based on the object of designing a foam device of the type mentioned in such a way that, with a simple structure and easy operability by one person, it enables simple and constant foam production, which is also adjustable over larger ranges of the foam weight obtained.
  • a foam device of the type mentioned at the outset is characterized according to the invention by a valve block with connections for the water-foam-forming mixture supplied by a pump and the compressed air, and with an expansion-side expansion nozzle for foaming, to which the foam hose can be connected.
  • a pump is used to convey the water-foaming agent mixture to the valve block and on the other hand the previous foam tube is replaced by a simple valve block, in that only one expansion nozzle is provided, in front of which the inlets for the water-foaming agent mixture and the compressed air are arranged on the one hand are.
  • the construction according to the invention results in a foam device which permits problem-free continuous production of foam without the need for a voluminous foam pipe which is also to be specially aligned.
  • the foam is formed at the outlet of the valve block in the expansion nozzle and immediately passed on via the foam hose for further processing, preferably to a foam nozzle arranged at the front end of the foam hose.
  • the pump is preferably provided with a water line connection and a preferably controllable foam agent injector, it being possible for a metering pump with a suction filter to be used instead of the foam agent injector.
  • a water pipe connection to connect to the water pipe Compared to the previously known arrangements with water suction, it simplifies the structure and the operation considerably.
  • the compressed air inlet of the valve block is expediently provided with a non-return valve, and a pressure reducer can also be provided, so that the foam device can be easily connected to a conventional compressed air line, with the pressure reducer being able to set the appropriate pressure to achieve the desired foam weight .
  • the required amount of foaming agent is metered exactly into the pump water by means of a pump 1 with a built-in controllable or permanently set injector 2, which could possibly also be replaced by a metering pump 3.
  • the water-foam mixture is injected into valve block 4 under pressure.
  • a suction filter is shown at 5 in order to possibly also suck in the foaming agent, just as the water could also be sucked in if necessary.
  • the water is preferably supplied via the connection 6 directly to a water pipe, a pressure limiter being indicated at 7. This ensures perfect operation even with different line pressures.
  • the water-foam agent inlet 8 of the valve block 4 is preceded by a safety valve which prevents the flow in the unpressurized state.
  • This safety valve can be set to a pressure of 10 bar, for example, and only opens the water / foam mixture coming from pump 1 to the valve block when this pressure value of 10 bar is exceeded.
  • valve block 4 there is also a compressed air inlet 10 with a check valve 11, the pressure of the compressed air taken from a compressed air line at 12 being controllable via a pressure reducer 13.
  • the foam is generated in the valve block with the help of an expansion nozzle 14.
  • the foam passes through the foam hose 15 to the foam nozzle 16, which can be shut off by a ball valve 17.
  • a pressure switch 18 is switched on, which switches on the motor of the pump 1 when the ball valve 17 is open and, when the ball valve is closed, switches off the pump motor after the predetermined pressure has been reached. This results in a simple and reliable remote control and at the same time the conditions are always maintained that when reopening sufficient pressure to produce a foam with predetermined properties is possible.
  • a safety valve 19 releases any excess pressure that may arise in the system.
  • the foam production can be controlled via a timer 20 if necessary.
  • the pressure switch is replaced by a solenoid valve.
  • the ball valve on the foam nozzle is omitted.
  • a fill level indicator 21 can be used to monitor the foam agent supply.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Foaming apparatus for producing construction foam, in particular prefabricated foam for the production of porous concrete (foamed concrete) and factory-mixed fresh mortar, with a mixing device for a water/foaming agent mixture, a pump, a compressed-air source and a foam hose which can be connected to the foaming chamber and has a closure element, with a valve block (4) with connections (8, 10) for the water/foaming agent mixture supplied by a pump (1) and the compressed air and also with an expansion nozzle (14) at the discharge end for foaming, to which the foam hose (15) can be connected. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Schaumgerät zur Herstellung von Bauschaum, insb. vorgefertigtem Schaum für die Herstellung von Porenbeton (Schaumbeton) und Werk-Frischmörtel, mit einer Mischeinrichtung für ein Wasser-Schaummittelgemisch, einer Pumpe, einer Druckluftquelle und einem an die Aufschäumkammer anschließbaren Schaumschlauch mit einem Verschlußglied.The invention relates to a foam device for the production of construction foam, in particular prefabricated foam for the production of aerated concrete (foam concrete) and fresh factory mortar, with a mixing device for a water / foam mixture, a pump, a compressed air source and a foam hose that can be connected to the foam chamber with a closure member.

Bei einen derartigen auf d6em Markt befindlichen Schaumgeräten werden sowohl das Schaummittel einerseits als auch das Wasser andererseits angesaugt und über eine Pumpe einem Schaumrohr mit einer Vielzahl von Eintrittsöffnungen zugeführt, in dem sich der Schaum ausbildet und unten aus dem relativ langen und stets senkrecht zu montierenden Schaumrohr austritt.In such a foam device on the market, both the foaming agent on the one hand and the water on the other hand are sucked in and fed via a pump to a foam pipe with a large number of inlet openings, in which the foam is formed and below from the relatively long and always vertically mountable foam pipe exit.

Diese Geräte sind nicht nur äußerst kompliziert im Aufbau, sondern auch sehr anfällig im Betrieb. Die Schaumproduktion hängt sehr stark von der Einhaltung genauer Parameter hinsichtlich des Ansaugens der verschiedenen Bestandteile des Drucks und insbesondere auch der Anordnung des Schaumrohrs ab, so daß ein derartiges Schaumgerät in der Praxis immer nur von zwei Personen einigermaßen sinnvoll bedient werden kann.These devices are not only extremely complicated to set up, but also very fragile to operate. The foam production depends very much on the adherence to precise parameters with regard to the suction of the various components of the pressure and in particular also the arrangement of the foam tube, so that in practice such a foam device can only ever be used reasonably by two people.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Schaumgerät der eingangs genannten Art so auszugestalten, daß es bei einfacherem Aufbau und einer leichten Bedienbarkeit durch eine Person eine einfache und konstante Schaumproduktion ermöglicht, die darüber hinaus auch über größere Bereiche des anfallenden Schaumgewichts einstellbar ist.The invention is therefore based on the object of designing a foam device of the type mentioned in such a way that, with a simple structure and easy operability by one person, it enables simple and constant foam production, which is also adjustable over larger ranges of the foam weight obtained.

Zur Lösung dieser Aufgabe ist ein Schaumgerät der eingangs genannten Art erfindungsgemäß gekennzeichnet durch einen Ventilblock mit Anschlüssen für das von einer Pumpe zugeführte Wasser-Schaumbildnergemisch und die Druckluft sowie mit einer ausgangsseitigen Expansionsdüse zum Aufschäumen, an welche der Schaumschlauch anschließbar ist.To achieve this object, a foam device of the type mentioned at the outset is characterized according to the invention by a valve block with connections for the water-foam-forming mixture supplied by a pump and the compressed air, and with an expansion-side expansion nozzle for foaming, to which the foam hose can be connected.

Erfindungsgemäß wird zum einen eine Pumpe zur Förderung des Wasser-Schaumbildnergemisches zum Ventilblock verwendet und zum anderen wird das bisherige Schaumrohr durch einen einfachen Ventilblock ersetzt, indem lediglich eine Expansionsdüse vorgesehen ist, vor der die Einlässe für das Wasser-Schaumbildnergemisch einerseits und die Druckluft andererseits angeordnet sind.According to the invention, on the one hand a pump is used to convey the water-foaming agent mixture to the valve block and on the other hand the previous foam tube is replaced by a simple valve block, in that only one expansion nozzle is provided, in front of which the inlets for the water-foaming agent mixture and the compressed air are arranged on the one hand are.

Durch den erfindungsgemäßen Aufbau ergibt sich ein Schaumgerät, welches eine problemlose kontinuierliche Produktion von Schaum gestattet, ohne daß ein voluminöses und noch dazu speziell auszurichtendes Schaumrohr notwendig ist. Der Schaum wird am Austritt des Ventilblocks in der Expansionsdüse gebildet und sofort über den Schaumschlauch zur weiteren Verarbeitung, vorzugsweise zu einer am vorderen Ende des Schaumschlauchs angeordneten Schaumdüse weitergeleitet. Durch die Einstellung des Drucks der Pumpe einerseits sowie des Luftdrucks andererseits läßt sich das Schaumgewicht in weitem Umfang regeln, ohne daß dadurch die kontinuierliche Schaumproduktion beeinträchtigt ist, wie dies bei Verwendung der bisherigen Schaumrohre sehr häufig der Fall ist.The construction according to the invention results in a foam device which permits problem-free continuous production of foam without the need for a voluminous foam pipe which is also to be specially aligned. The foam is formed at the outlet of the valve block in the expansion nozzle and immediately passed on via the foam hose for further processing, preferably to a foam nozzle arranged at the front end of the foam hose. By setting the pressure of the pump on the one hand and the air pressure on the other hand, the foam weight can be regulated to a large extent without the continuous foam production being impaired, as is very often the case when using the previous foam pipes.

Bevorzugt ist die Pumpe mit einem Wasserleitungsanschluß und einem vorzugsweise regelbaren Schaummittelinjektor versehen, wobei statt des Schaummittelinjektors ggf. eine Dosierpumpe mit Ansaugfilter verwendet werden könnte. Die Verwendung eines Wasserleitungsanschlusses zum Anschließen an die Wasserleitung vereinfacht gegenüber den vorbekannten Anordnungen mit Wasseransaugung den Aufbau und die Funktionsweise ganz erheblich.The pump is preferably provided with a water line connection and a preferably controllable foam agent injector, it being possible for a metering pump with a suction filter to be used instead of the foam agent injector. The use of a water pipe connection to connect to the water pipe Compared to the previously known arrangements with water suction, it simplifies the structure and the operation considerably.

Dabei hat es sich als besonders zweckmäßig erwiesen, dem Wasser-Schaumbildnergemischeingang des Ventilblocks ein Sicherheitsventil vorzuschalten, das einen Durchfluß in drucklosem Zustand sperrt. Erst wenn ein bestimmter Druck, beispielsweise 10 bar, überschritten wird, gibt das Sicherheitsventil dem von der Pumpe unter Druck zugeführten Wasser-Schaumbildnergemisch den Weg in den Ventilblock frei.It has proven particularly expedient to connect a safety valve upstream of the water / foaming agent mixture inlet of the valve block, which blocks a flow in the depressurized state. Only when a certain pressure, for example 10 bar, is exceeded does the safety valve open the way for the water-foaming agent mixture supplied by the pump into the valve block.

Zweckmäßigerweise ist der Drucklufteinlaß des Ventilblocks mit einem Rückschlagventil versehen, wobei zusätzlich auch noch ein Druckminderer vorgesehen sein kann, so daß das Schaumgerät einfach an eine herkömmliche Druckluftleitung angeschlossen werden kann, wobei über den Druckminderer der jeweils passende Druck zur Erzielung des gewünschten Schaumgewichts eingestellt werden kann.The compressed air inlet of the valve block is expediently provided with a non-return valve, and a pressure reducer can also be provided, so that the foam device can be easily connected to a conventional compressed air line, with the pressure reducer being able to set the appropriate pressure to achieve the desired foam weight .

Von besonderer Bedeutung für die Herstellung eines Schaums mit gleichbleibenden Eigenschaften, auch wenn die Schaumproduktion nicht kontinuierlich erfolgt, sondern immer wieder durch Betätigen des Verschlußgliedes am Schaumschlauch für mehr oder weniger lange Zeiträume unterbrochen wird, ist eine weitere Ausgestaltung des Erfindungsgedankens, wonach zwischen dem vor der Schaumdüse am Ende des Schaumschlauchs angeordneten, vorzugsweise als Kugelventil ausgebildeten Verschlußglied und der Expansionsdüse ein mit dem Verschlußglied gekoppelter Druckschalter angeordnet ist, der bei geöffnetem Verschlußglied den Pumpenmotor einschaltet und bei geschlossenem Verschlußglied - nach Erreichen eines vorgegebenen Drucks - wieder ausschaltet.Of particular importance for the production of a foam with constant properties, even if the foam is not produced continuously, but is repeatedly interrupted by actuating the closure member on the foam hose for more or less long periods of time, is a further embodiment of the inventive concept, according to which between the before Foam nozzle arranged at the end of the foam hose, preferably designed as a ball valve and the expansion nozzle, a pressure switch coupled to the closure member is arranged, which switches on the pump motor when the closure member is open and switches it off again when the closure member is closed - after reaching a predetermined pressure.

Schließlich liegt es auch noch im Rahmen der Erfindung, eine Zeitschaltuhr zur Regelung der Schaumproduktion sowie ggf. auch einen Zustandsmelder für das Schaummittelgefäß vorzusehen.Finally, it is also within the scope of the invention to provide a timer for regulating the foam production and, if appropriate, also a status indicator for the foam agent container.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels sowie anhand der Zeichnung. Dabei zeigen:

Fig. 1
eine schematische Funktionszeichnung des Schaumgeräts, und
Fig. 2
einen vergrößerten Schnitt durch den Ventilblock.
Further advantages, features and details of the invention result from the following description of an exemplary embodiment and from the drawing. Show:
Fig. 1
a schematic functional drawing of the foam device, and
Fig. 2
an enlarged section through the valve block.

Über eine Pumpe 1 mit angebautem regelbarem oder fest eingestelltem Injektor 2, der ggf. auch durch eine Dosierpumpe 3 ersetzt werden könnte, wird die benötigte Schaummittelmenge exakt dem Pumpenwasser zudosiert. Das Wasser-Schaummittelgemisch wird unter Druck in den Ventilblock 4 eingespritzt. Bei 5 ist ein Ansaugfilter dargestellt, um das Schaummittel möglicherweise auch anzusaugen, wie notfalls auch das Wasser angesaugt werden könnte. Bevorzugt erfolgt allerdings die Wasserzufuhr über den Anschluß 6 direkt an einer Wasserleitung, wobei bei 7 ein Druckbegrenzer angedeutet ist. Dieser sorgt auch bei unterschiedlichen Leitungsdrucken für einen einwandfreien Betrieb.The required amount of foaming agent is metered exactly into the pump water by means of a pump 1 with a built-in controllable or permanently set injector 2, which could possibly also be replaced by a metering pump 3. The water-foam mixture is injected into valve block 4 under pressure. A suction filter is shown at 5 in order to possibly also suck in the foaming agent, just as the water could also be sucked in if necessary. However, the water is preferably supplied via the connection 6 directly to a water pipe, a pressure limiter being indicated at 7. This ensures perfect operation even with different line pressures.

Dem Wasser-Schaummitteleingang 8 des Ventilblocks 4 ist ein Sicherheitsventil vorgeschaltet, welches den Durchfluß im drucklosen Zustand verhindert. Dieses Sicherheitsventil kann beispielsweise auf einen Druck von 10 bar eingestellt sein und öffnet dem Wasser-Schaummittelgemisch, das von der Pumpe 1 kommt, den Zugang zum Ventilblock erst, wenn dieser Druckwert von 10 bar überschritten ist.The water-foam agent inlet 8 of the valve block 4 is preceded by a safety valve which prevents the flow in the unpressurized state. This safety valve can be set to a pressure of 10 bar, for example, and only opens the water / foam mixture coming from pump 1 to the valve block when this pressure value of 10 bar is exceeded.

Am Ventilblock 4 befindet sich noch ein Drucklufteingang 10 mit Rückschlagventil 11, wobei der Druck der bei 12 von einer Druckluftleitung abgenommenen Druckluft über einen Druckminderer 13 regelbar ist.At the valve block 4 there is also a compressed air inlet 10 with a check valve 11, the pressure of the compressed air taken from a compressed air line at 12 being controllable via a pressure reducer 13.

Der Schaum wird im Ventilblock mit Hilfe einer Expansionsdüse 14 erzeugt. Durch die Expansionsdüse 14 am Ventilblock gelangt der Schaum durch den Schaumschlauch 15 zur Schaumdüse 16, die durch einen Kugelhahn 17 absperrbar ist. Zwischen Ventilblock 4 und Schaumschlauch 15 ist ein Druckschalter 18 eingeschaltet, der den Motor der Pumpe 1 bei geöffnetem Kugelhahn 17 einschaltet und beim Schließen des Kugelhahnes den Pumpenmotor nach Erreichen des vorgegebenen Druckes ausscchaltet. Dadurch ergibt sich eine einfache und zuverlässige Fernbedienung und gleichzeitig werden stets die Bedingungen aufrechterhalten, daß beim Wiederöffnen auch ausreichender Druck zur Produktion eines Schaums mit vorgegebenen Eigenschaften möglich ist. Ein Sicherheitsventil 19 läßt bei eventuellen Schäden im System den entstehenden Überdruck ab.The foam is generated in the valve block with the help of an expansion nozzle 14. Through the expansion nozzle 14 on the valve block, the foam passes through the foam hose 15 to the foam nozzle 16, which can be shut off by a ball valve 17. Between the valve block 4 and the foam hose 15, a pressure switch 18 is switched on, which switches on the motor of the pump 1 when the ball valve 17 is open and, when the ball valve is closed, switches off the pump motor after the predetermined pressure has been reached. This results in a simple and reliable remote control and at the same time the conditions are always maintained that when reopening sufficient pressure to produce a foam with predetermined properties is possible. A safety valve 19 releases any excess pressure that may arise in the system.

Die Schaumproduktion kann bei Bedarf über eine Zeitschaltuhr 20 geregelt werden. In diesem Fall wird der Druckschalter durch ein Magnetventil ersetzt. Der Kugelhahn an der Schaumdüse entfällt. Zur Überwachung des Schaummittelvorrates kann ein Füllstandsmelder 21 eingesetzt werden.The foam production can be controlled via a timer 20 if necessary. In this case the pressure switch is replaced by a solenoid valve. The ball valve on the foam nozzle is omitted. A fill level indicator 21 can be used to monitor the foam agent supply.

Claims (7)

Schaumgerät zur Herstellung von Bauschaum, insb. vorgefertigem Schaum für die Herstellung von Porenbeton (Schaumbeton) und Werk-Frischmörtel, mit einer Mischeinrichtung für ein Wasser-Schaummittelgemisch, einer Pumpe, einer Druckluftquelle und einem an die Aufschäumkammer anschließbaren Schaumschlauch mit einem Verschlußglied, gekennzeichnet durch einen Ventilblock (4) mit Anschlüssen (8, 10) für das von einer Pumpe (1) zugeführte Wasser-Schaumbildnergemisch und die Druckluft sowie mit einer ausgangsseitigen Expansionsdüse (14) zum Aufschäumen, an welche der Schaumschlauch (15) anschließbar ist.Foam device for the production of construction foam, especially prefabricated foam for the production of aerated concrete (foam concrete) and factory fresh mortar, with a mixing device for a water-foam mixture, a pump, a compressed air source and a foam hose that can be connected to the foam chamber with a closure element, characterized by a valve block (4) with connections (8, 10) for the water-foaming agent mixture supplied by a pump (1) and the compressed air, and with an expansion-side expansion nozzle (14) for foaming, to which the foam hose (15) can be connected. Schaumgerät nach Anspruch 1, dadurch gekennzeichnet, daß die Pumpe (1) mit einem Wasserleitungsanschluß (6) und einem vorzugsweise regelbaren Schaummittelinjektor (2) versehen ist.Foam device according to claim 1, characterized in that the pump (1) is provided with a water line connection (6) and a preferably controllable foam agent injector (2). Schaumgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dem Wasser-Schaumbildnergemischeingang (8) des Ventilblocks (4) ein Sicherheitsventil (9) vorgeschaltet ist, das einen Durchfluß im drucklosen Zustand sperrt.Foam device according to claim 1 or 2, characterized in that a safety valve (9) is connected upstream of the water-foaming agent mixture inlet (8) of the valve block (4), which blocks a flow in the unpressurized state. Schaumgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Drucklufteinlaß (10) des Ventilblocks (4) mit einem Rückkschlagventil (11) sowie einem Druckminderer (13) versehen ist.Foam device according to one of claims 1 to 3, characterized in that the compressed air inlet (10) of the valve block (4) is provided with a check valve (11) and a pressure reducer (13). Schaumgerät nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß zwischen dem vor der Schaumdüse (16) am Ende des Schaumschlauchs (15) angeordneten, vorzugsweise als Kugelventil (17) ausgebildeten Verschlußglied und der Expansionsdüse (14) ein Druckschalter (18) angeordnet ist, der bei geöffnetem Verschlußglied den Pumpenmotor einschaltet und bei Schließen - nach Erreichen eines vorgegebenen Drucks - wieder ausschaltet.Foam device according to one of claims 1 to 4, characterized in that between the front of the foam nozzle (16) at the end of the foam hose (15), A pressure switch (18) is preferably arranged as a ball valve (17) and the expansion nozzle (14) is arranged, which switches on the pump motor when the closure member is open and switches it off again when it closes - after reaching a predetermined pressure. Schaumgerät nach einem der Ansprüche 1 bis 5, gekennzeichnet durch eine Zeitschaltuhr (20) zur Regelung der Schaumproduktion.Foam device according to one of claims 1 to 5, characterized by a timer (20) for regulating foam production. Schaumgerät nach einem der Ansprüche 1 bis 6, gekennzeichnet durch einen Füllstandsmelder (21) für das Schaummittelgefäß.Foam device according to one of claims 1 to 6, characterized by a level indicator (21) for the foam agent container.
EP93109240A 1992-07-17 1993-06-09 Method for the production of construction foam and foaming apparatus for carrying out the method Expired - Lifetime EP0578968B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9209613U DE9209613U1 (en) 1992-07-17 1992-07-17 Foaming device for producing construction foam
DE9209613U 1992-07-17

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Publication Number Publication Date
EP0578968A1 true EP0578968A1 (en) 1994-01-19
EP0578968B1 EP0578968B1 (en) 1997-05-14

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EP (1) EP0578968B1 (en)
AT (1) ATE152955T1 (en)
DE (2) DE9209613U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445436A1 (en) * 1994-12-20 1996-06-27 Wmf Wuerttemberg Metallwaren Foaming device, esp. for foaming milk in the prepn. of cappuccino
DE10110917C2 (en) * 2001-03-07 2003-05-15 Axel Kretzschmar Method and device for producing a binder foam
CN108858741A (en) * 2017-09-29 2018-11-23 中山市鸣网络科技有限公司 A kind of fine material mixer water-adding system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103302725B (en) * 2013-06-13 2015-07-15 马鞍山十七冶工程科技有限责任公司 Foam concrete foaming machine and foaming method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132667A1 (en) * 1981-08-14 1983-02-24 Lehmann & Co GmbH, 2120 Lüneburg Process and device for producing porous concrete or foam concrete or the like
DE3408007A1 (en) * 1984-03-03 1985-09-05 Wilhelm Müller, Maschinenfabrik, 4710 Lüdinghausen Concrete-spraying nozzle for foamed concrete, foamed mortar or the like
DE3710395A1 (en) * 1987-03-28 1988-10-13 Bruno Jesswein Spray gun for foam
EP0299482A2 (en) * 1987-07-14 1989-01-18 STEAG-Entsorgungs-GmbH Process for the production of granules or formed bodies from powdery mineral materials
EP0517207A1 (en) * 1991-06-06 1992-12-09 RUME MASCHINENBAU GmbH Method and device to make construction foam, in particular cement foam

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132667A1 (en) * 1981-08-14 1983-02-24 Lehmann & Co GmbH, 2120 Lüneburg Process and device for producing porous concrete or foam concrete or the like
DE3408007A1 (en) * 1984-03-03 1985-09-05 Wilhelm Müller, Maschinenfabrik, 4710 Lüdinghausen Concrete-spraying nozzle for foamed concrete, foamed mortar or the like
DE3710395A1 (en) * 1987-03-28 1988-10-13 Bruno Jesswein Spray gun for foam
EP0299482A2 (en) * 1987-07-14 1989-01-18 STEAG-Entsorgungs-GmbH Process for the production of granules or formed bodies from powdery mineral materials
EP0517207A1 (en) * 1991-06-06 1992-12-09 RUME MASCHINENBAU GmbH Method and device to make construction foam, in particular cement foam

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445436A1 (en) * 1994-12-20 1996-06-27 Wmf Wuerttemberg Metallwaren Foaming device, esp. for foaming milk in the prepn. of cappuccino
DE10110917C2 (en) * 2001-03-07 2003-05-15 Axel Kretzschmar Method and device for producing a binder foam
CN108858741A (en) * 2017-09-29 2018-11-23 中山市鸣网络科技有限公司 A kind of fine material mixer water-adding system

Also Published As

Publication number Publication date
DE59306431D1 (en) 1997-06-19
ATE152955T1 (en) 1997-05-15
EP0578968B1 (en) 1997-05-14
DE9209613U1 (en) 1992-09-17

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