EP1036639A2 - Méthode et dispositif pour la préparation d'un mortier projetable utilisable dans un procédé de projection humide - Google Patents

Méthode et dispositif pour la préparation d'un mortier projetable utilisable dans un procédé de projection humide Download PDF

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Publication number
EP1036639A2
EP1036639A2 EP00104397A EP00104397A EP1036639A2 EP 1036639 A2 EP1036639 A2 EP 1036639A2 EP 00104397 A EP00104397 A EP 00104397A EP 00104397 A EP00104397 A EP 00104397A EP 1036639 A2 EP1036639 A2 EP 1036639A2
Authority
EP
European Patent Office
Prior art keywords
mixing
mortar
stage
pipe section
mixer
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.)
Withdrawn
Application number
EP00104397A
Other languages
German (de)
English (en)
Other versions
EP1036639A3 (fr
Inventor
Hans Richard Weber
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 EP1036639A2 publication Critical patent/EP1036639A2/fr
Publication of EP1036639A3 publication Critical patent/EP1036639A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
    • B28C5/145—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis with several mixing chambers arranged one after the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
    • B01F27/2123—Shafts with both stirring means and feeding or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/712—Feed mechanisms for feeding fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1292—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with rotating stirring and feeding or discharging means fixed on the same axis, e.g. in an inclined container fed at its lower part

Definitions

  • the invention relates to a method for producing spray mortar for use in Wet spraying method according to the preamble of claim 1. - The invention further relates a device for performing the method according to the preamble of the claim 4th
  • Spray mortar can be produced by dry spraying or wet spraying.
  • the dry mortar is conveyed to the spray nozzle, where the added water and additives may be added.
  • the wet spray process is In contrast, characterized in that the completely prepared wet mortar up to Spray nozzle is conveyed and dispensed there.
  • the wet spray process is particularly used for work where minimal dust is required.
  • the mixing method according to the invention is particularly suitable for producing mortar in Wet spraying process intended for concrete replacement.
  • a previously known wet spraying method for spray mortar consists of two components, namely from a compulsory mixer and from a feed pump.
  • the compulsory mixer will given an appropriate amount of water.
  • the dry mortar is added, the material is added while the mixer is running.
  • the mortar is emptied from the compulsory mixer via a segment slide on the drum base.
  • the mortar then falls into the feed pump (for example eccentric screw pump) and is via a hose line fed to the point of consumption using the dense phase method.
  • a disadvantage of this known wet spraying method is that it is discontinuous Way of working. First the batch mixer is loaded with batches of 3 Bags (75 kg). After the forced mixing has been carried out, the Compulsory mixer. This interrupts the further production of wet mortar. In addition to the discontinuous mode of operation, another disadvantage is the known one Wet spraying process in that mixing times of approx. 3 minutes must be observed. The manufacturing performance is limited. Another disadvantage is that a Operator is required, which for loading the compulsory mixer with the batches and for emptying the compulsory mixer into the conveyor unit by hand worries. Finally, two voluminous devices are required, which are maintained accordingly and need to be cleaned.
  • a mortar mixing machine is known from DE-GM 93 19 066, in which one funnel-shaped storage container for the dry mortar a mixing device outside of Storage container is arranged on this. This mixing device has a water supply to the dry mortar pumped out of the reservoir with water to move and mix.
  • the invention has for its object to provide an improved process for preparing spray mortar for use in the wet spraying to create the dry mortar contains sparingly water-soluble content, in particular a eikomponentiger, resin-modified, mineral dry mortar; furthermore, an apparatus for carrying out the method is to be created.
  • the basic idea is that the mortar without the help of an operator is mixed continuously, i.e. Provide mixing water in the first mixing stage so that this first mixing stage serves as a mixing zone. In the subsequent second mixing stage, the final mixing takes place in this actual mixing zone of the pasted mortar.
  • the poorly soluble parts namely the plastic dispersions in particular in the second mixing stage in the mortar, so that finally the wet mortar in usable There is consistency.
  • the process can be operated remotely, it is a one-man control possible and the complete mixing and conveying system is in one system contain. Maintenance and cleaning are simplified by small technical units.
  • claims 2 and 3 have the advantage that they are difficult soluble parts in the mortar can be fully digested. This is done by a a correspondingly long residence time in the second mixing stage and in that In this second mixing stage, the mixing intensity is more intensive than in the dough zone of the first Mixing stage.
  • a preferred embodiment of the mixing device using a mixing tube proposes claim 5.
  • the mixing elements or mixing tools can be slanted mixing paddles or mixing blades act, which besides their mixing function also promote the mortar. Located in the area of the beginning of the mixing tube the water supply, while at the front end of the mixing tube the outlet for the Mixed material is provided.
  • Claim 6 proposes a preferred technical implementation of the mixing tube.
  • the Mixing tube and the mixing shaft are designed in two stages, the basic idea of Mixing tube consists of two cylinders with different diameters.
  • the two-stage Mixing shaft consists of two different sized mixing tool types in the two Pipe sections or mixing stages.
  • the pipe section of the second mixing stage one has a larger diameter than the pipe section of the first mixing stage, is therefore in this second pipe section created a larger volume than in the first pipe section.
  • the prerequisite is, of course, that the second pipe section has a corresponding length has that this larger volume is realized.
  • the second pipe section about the same length as the first pipe section. Due to the larger volume in second pipe section is therefore a longer residence time of the mortar in this second Mixing stage guaranteed.
  • a longer residence time means more intensive mixing. Since the mixing elements also have a larger one in the second pipe section Have radial length, is the circulation speed of the mixing elements in the radial outer area larger. A higher speed of the mixing elements means but also a more intensive mixing of the mortar.
  • the advantage of the further development according to claim 7 is that a "conventional" mixing device for the production of "normal” wet mortar (without sparingly soluble dispersants) easily and without problems with the invention Mixing device can be converted, for example, the mixing tube is flanged to the storage container by means of a tension lock.
  • the first, rear Pipe section of the mixing tube has a connecting flange and preferably also a diameter corresponding to the design of a "conventional” mixing tube.
  • the mortar mixer has a cuboid frame 1 in Euro pallet size (80 x 120 cm) or larger. Within this frame 1 there is a funnel-shaped storage container 3, which tapers towards the bottom, as shown in particular in Fig. 2 reveals.
  • a screw conveyor 3 is arranged in the bottom region of this storage container 2. Driven is this screw conveyor 3 by an electric motor 4, which is in the axial direction the screw conveyor 3 seen below the hopper slope of the storage container 2 and is located in particular within the circumferential contour of the frame 1.
  • the screw conveyor 3 opens into a metering tube 5 with a metering screw 6, namely afterwards to an opening 7 formed laterally in the storage container 2.
  • mixing device 8 On the outside of the storage container 2 there is a mixing device 8 with a mixing tube at the opening 7 9 made of steel with the mixing shaft 10 detachable therein (for example by clamping elements) arranged.
  • Mixing elements 11 are in shape on the mixing shaft 10 of radially protruding, wing-like paddles, which extend to the axial direction of the mixing shaft 10 are inclined. These mixing elements 11 are only indicated schematically in FIG. 1. They extend in the respective pipe section up to approximately the inner surface of the mixing pipe 9.
  • the mixing tube 9 has two cylindrical tube sections 9 ', 9' '.
  • the rear, first Pipe section 9 ' has a smaller diameter than the front, second Pipe section 9 ''.
  • the axial lengths of the two pipe sections 9 ', 9' ' are approximately the same length.
  • the volume of the second pipe section 9 ′′ is greater than the volume of the first pipe section 9 '.
  • the connection between the two pipe sections 9 ', 9' ' takes place through a central, central opening which is essentially the inner opening, i.e. corresponds to the clear width of the first pipe section 9 '.
  • the first pipe section 9 ′ has in the region of the opening 7 of the storage container 2 a water supply 12.
  • the corresponding water supply lines are not shown.
  • the second pipe section 9 ′′ has an outlet 13 at the front end which can be connected to a delivery hose, for example.
  • the mortar mixer works as follows:
  • the screw conveyor 3 is rotated by means of the electric motor 4.
  • the dry mortar is fed through the screw conveyor 3 to the metering screw 6.
  • the dosing screw 6 conveys a constant amount of dry mortar into the flanged one Mixing tube 9 of the mixing device 8.
  • the required amount of water is fed to the mixing tube 9 via the water supply 12.
  • the first pipe section 9 'of the mixing pipe 9 with the water supply 12 serves as a dough zone.
  • the dry mortar is brought into contact with the water, so that a moist mass is created.
  • the mixing takes place through the paddle-shaped mixing elements 11, which also serve as conveying elements and transport the pasted mortar in the direction of the second pipe section 9 ′′.
  • this second pipe section 9 '' has a larger internal volume than the first pipe section 9 ' the dwell time of the pasted mortar is longer than in the first pipe section 9 '. This means more intensive mixing of the mortar.
  • the mixing elements 11 in this second pipe section 9 ′′ longer than in the first pipe section 9 ′. This means that in the radial outer region of these mixing elements 11, the rotational speed is larger than indoors. A larger relative speed between the mixing elements 11 and the mortar means a more intensive mixing of the Mortar.
  • A serves as a conveying element conventional feed pump, for example an eccentric screw pump, which in the Embodiment is not shown.
EP00104397A 1999-03-15 2000-03-02 Méthode et dispositif pour la préparation d'un mortier projetable utilisable dans un procédé de projection humide Withdrawn EP1036639A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19911368 1999-03-15
DE19911368A DE19911368B4 (de) 1999-03-15 1999-03-15 Vorrichtung zum Herstellen von Spritzmörtel zur Verwendung im Naßspritzverfahren

Publications (2)

Publication Number Publication Date
EP1036639A2 true EP1036639A2 (fr) 2000-09-20
EP1036639A3 EP1036639A3 (fr) 2002-07-10

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ID=7900956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00104397A Withdrawn EP1036639A3 (fr) 1999-03-15 2000-03-02 Méthode et dispositif pour la préparation d'un mortier projetable utilisable dans un procédé de projection humide

Country Status (2)

Country Link
EP (1) EP1036639A3 (fr)
DE (1) DE19911368B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1688176A3 (fr) * 2005-02-03 2006-08-30 alsecco GmbH & Co. KG Dispositif de pompage et de mélange pour des matériaux en poudre et liquides et système pour la production des matériaux pâteuses destinés à la construction
AT504803B1 (de) * 2004-07-14 2008-11-15 Johann Dipl Ing Keil Anlage zur herstellung und verarbeitung von nassspritz-mischgut

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051224A2 (fr) * 1980-10-31 1982-05-12 Mathis System-Technik GmbH Procédé et appareil pour la préparation continue de mortier, enduit ou matériau de construction analogue
EP0496685A1 (fr) * 1991-01-22 1992-07-29 Omniplastic S.A. Procédé et dispositif de préparation, de transfert et d'application en continu d'une suspension minérale aqueuse fluide de ragréage
DE4113331A1 (de) * 1991-04-24 1992-10-29 Hans Winkler Misch- und foerderpumpe
DE29906703U1 (de) * 1999-04-15 1999-08-12 Unibautech Grossenhainer Masch Mischer zur Herstellung von Suspensionen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8318424U1 (de) * 1983-06-25 1983-11-03 P.F.T. Putz- und Fördertechnik GmbH, 8715 Iphofen Vorrichtung zum mischen eines baustoffs, insbesondere moertels, mit wasser
DE3546501A1 (de) * 1985-09-13 1987-04-23 Heidelberger Zement Ag Vorrichtung zur kontinuierlichen bereitstellung von hydraulisch abbindender masse
DE9105027U1 (fr) * 1991-04-24 1991-09-19 Winkler, Hans, 7801 Bollschweil, De
DE9319066U1 (de) * 1993-12-14 1994-02-24 Mueller Anton Mörtelmischmaschine
DE29514183U1 (de) * 1995-09-05 1995-11-02 Inotec Gmbh Mörtelmischmaschine
DE19542663C2 (de) * 1995-11-16 2003-05-15 Wagner Gmbh J Mischvorrichtung
DE19710067C1 (de) * 1997-03-12 1998-12-03 Maxit Holding Gmbh Vorrichtung zum kontinuierlichen Anmachen von Schüttgut- oder Baustoffmischungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051224A2 (fr) * 1980-10-31 1982-05-12 Mathis System-Technik GmbH Procédé et appareil pour la préparation continue de mortier, enduit ou matériau de construction analogue
EP0496685A1 (fr) * 1991-01-22 1992-07-29 Omniplastic S.A. Procédé et dispositif de préparation, de transfert et d'application en continu d'une suspension minérale aqueuse fluide de ragréage
DE4113331A1 (de) * 1991-04-24 1992-10-29 Hans Winkler Misch- und foerderpumpe
DE29906703U1 (de) * 1999-04-15 1999-08-12 Unibautech Grossenhainer Masch Mischer zur Herstellung von Suspensionen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT504803B1 (de) * 2004-07-14 2008-11-15 Johann Dipl Ing Keil Anlage zur herstellung und verarbeitung von nassspritz-mischgut
EP1688176A3 (fr) * 2005-02-03 2006-08-30 alsecco GmbH & Co. KG Dispositif de pompage et de mélange pour des matériaux en poudre et liquides et système pour la production des matériaux pâteuses destinés à la construction

Also Published As

Publication number Publication date
DE19911368A1 (de) 2000-09-21
DE19911368B4 (de) 2012-10-04
EP1036639A3 (fr) 2002-07-10

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