WO1997026121A1 - Verfahren zur herstellung von fliess- und/oder pumpfähigen baustoffen, insbesondere fliessestrichen - Google Patents
Verfahren zur herstellung von fliess- und/oder pumpfähigen baustoffen, insbesondere fliessestrichen Download PDFInfo
- Publication number
- WO1997026121A1 WO1997026121A1 PCT/EP1997/000254 EP9700254W WO9726121A1 WO 1997026121 A1 WO1997026121 A1 WO 1997026121A1 EP 9700254 W EP9700254 W EP 9700254W WO 9726121 A1 WO9726121 A1 WO 9726121A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- building material
- components
- water
- mixing
- devices
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C9/00—General arrangement or layout of plant
- B28C9/006—General arrangement or layout of plant comprising a multicompartment silo with the mixing device, e.g. a mixing screw, fitted directly at the underside of the silo, e.g. with proportioning means at the exit of the silo
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/02—Controlling the operation of the mixing
- B28C7/022—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component
- B28C7/024—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component by measuring properties of the mixture, e.g. moisture, electrical resistivity, density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C9/00—General arrangement or layout of plant
- B28C9/04—General arrangement or layout of plant the plant being mobile, e.g. mounted on a carriage or a set of carriages
- B28C9/0454—Self-contained units, i.e. mobile plants having storage containers for the ingredients
Definitions
- the invention relates to a process for the production of flowable and / or pumpable building materials, in particular flow screeds, consisting predominantly of the main components water, binders and additives, in particular sand and possibly other additives.
- the invention is therefore based on the object of specifying a process for the production of flowable and / or pumpable building materials, in particular flow screeds, in which the Building material quality is generally improved and is also variable in a wide range, with the overall manufacturing costs being reduced.
- the last sub-step of building material production from several components in connection with transportable mixing devices is precisely controlled. This means that the manufacturing steps up to the laying of the building material can be documented with sufficient accuracy in accordance with the product liability requirements.
- the logistical effort when installing different screed qualities e.g. B. in bathrooms, living rooms or garages, minimized, because with the same storage containers and without major conversion of the mixing system, but at the push of a button, different building material qualities, in particular different strength qualities, can be easily produced by varying one or more components.
- some standard building material qualities can be programmed into the electronic control system, which the plant operator can select, with the appropriate mixing ratio being precisely controlled and monitored.
- the idle times that would otherwise be caused by assembly, dismantling and the required cleaning of the mixing and conveying system are considerably reduced. Due to the predominantly continuous mode of operation of the conveying and / or dosing devices, the quantity of ready-made building material can also be minimized, so that with longer dwell times and / or necessary breaks in work, the risk of building material solidification in the conveying devices is low, so that only slight material losses occur. This is also in the In terms of avoiding residues on the construction site, this is a particular advantage.
- the components are mixed in two stages, namely that the desired amounts of water and binder are first mixed in a computer-controlled manner in a first step.
- This combination of water and binder, in particular as a suspension results in a particularly intensive mixing and homogeneity of the water-binder mixture, to which the additive is then added in a second step.
- the addition as a suspension results in optimal wetting of the additive, so that it can be assumed that the sand or the additive is completely wetted by the water-binder mixture.
- the electronic control and / or regulation of the desired building material quality is carried out by appropriate control / regulation interventions in continuous or discontinuous transport and / or conveying devices, such as cellular wheel sluice, conveyor belt, dosing belt scale, vibratory conveyor, proportional or throttle valve or screw conveyor.
- the control compares the measured actual values of the material-specific quantities and calculates the corresponding setpoints, such as speed, flow cross-section, delivery frequency and other manipulated variables of the aforementioned delivery and dosing devices for dosing the individual building material components, in accordance with the respective programming of the electronic control, in particular a programmable logic controller .
- Such targeted quality specifications can thus be achieved by simply entering an appropriate z. B. in the laboratory tested mixture can be set automatically on the control panel on the construction site.
- the comparison of conductance differences of the building material can be carried out by measuring on electrodes that are spaced apart.
- These material-specific measured variables can thus be included in the calculation of new manipulated variables in the electronic control or can also be used to monitor the entire system or its individual units.
- Fig. 1 is a schematic representation of an overall system
- Fig. 2 summarized in a multi-chamber silo
- FIG. 3 shows an expanded embodiment according to FIG. 1, with the basic control scheme.
- Fig. 1 the overall system used to carry out the method is shown schematically in the basic structure.
- This essentially consists of three (or more) storage containers 1, 2 and 3 for the respective components A, B and C, namely here water, binders and additives.
- this building material component can also be removed from supply lines.
- the advantage of a storage container l for the mixing water of the liquid screed is that various additives or additives can be added, which can be decisive for the quality of the building material produced.
- the container 1 serves as a buffer store for peak loads during water withdrawal, especially in the case of low-flow water networks.
- other additives can also be mixed with the binder B in the storage container 2, the term binder B generally being used here to mean binders for creating strength and possibly increasing the strength of the finished building material.
- a dispensing device 4, 7 and 8 is preferably assigned directly below the storage containers 1, 2 and 3 for conveyance in free fall or according to the principle of gravity, the metering devices 7 and 8 being preceded by a slide valve or butterfly valve 5 and 6.
- This function can also be integrated by appropriate design of the metering device 7 or 8, as is indicated for the metering device 4 in the form of a regulated throttle valve.
- this regulated throttle valve 4 can not only take on and off these components, here water, but also metering.
- the metering devices 4, 7 and 8 are provided with a flow meter, which is not shown separately here, but is designed for the respective component and is connected to the electronic control 20 shown in FIG. 3 via data lines.
- the metering device 7 is shown here by way of example as a cellular wheel sluice with which the metered quantity or delivery rate of the binder B can be adjusted.
- This metering device 7 can be controlled on a volumetric or gravimetric basis, as is known in the field of conveyor technology or weighing technology.
- the delivery rate of the metering device 7 can be changed by changing the speed via an adjusting motor shown only schematically, e.g. B. a frequency controlled electric motor.
- an encapsulated metering belt scale is preferred as the metering device 8 instead of a cellular wheel sluice.
- Their delivery rate is also regulated by means of an adjusting motor, shown only schematically, which is connected to the electronic control 20 for inputting the actual values for control purposes with a speed pulse generator or a tachometer generator.
- the output of the metering devices 4, 7 and 8 is connected to two mixing devices 9 and 10 via feed lines 13. It is important here that the mixing device 9 is connected to components A and B, namely water (possibly with additives) and binders. A suspension A + B is thus prepared in this premixer before admixture of the additive C. If the binder B is predominantly liquid, essentially a dispersion is formed. It is important here that the admixture of binder B to water A first produces a homogeneous, colloidally digested suspension (or dispersion) which then, together with the additive C in the mixing device 10, provides excellent wetting of the additive C and thus intensive Mixing of the building material results.
- the completely mixed building material from the components A + B + C enters a conveying pump 11, preferably a peristaltic pump.
- the Feed pump 11 conveys the finished mixed building material via a hose delivery line 14 to a discharge nozzle 12 with which the building material is applied on site.
- the delivery line 14 is designed as a flexible hose line, while the feed lines 13 are preferably pipelines.
- the feed pump 11 also has a drain opening 15, from which the building material can be removed when the system is idle for a long time.
- the downtime is preferably also recorded via the electronic control 20 and, if necessary, control commands are issued, so that the removal of the building material is program-controlled and then at least one wetting or rinsing process is carried out to prevent residual build-up of building material.
- a similar drain opening 15 can also be provided on the mixers 9 and 10, so that the accumulation of coraponent mixtures is also prevented there.
- a remote control 16 can also be provided on the discharge nozzle 12, i.e. directly at the installation site of the screed or the like and in the grip area of the operator, with which control commands can be sent to the electronic control 20 (see FIG. 3) by cable or wirelessly, such as e.g. B. "increase throughput” or "open drain opening 15".
- FIG. 2 shows a summarized device in the form of a multi-chamber system 30.
- components A and B that is to say in the order of water and binder, are first mixed and then the additive C is added to this premixed suspension and mixed in the mixer 10.
- an outlet 31 of the multi-chamber silo system 30 is designed in the form of a slide, so that there is essentially no need for intermediate conveying elements.
- the ratio of the components is different.
- the throughput rates of the mixers 9 and 10 are of course adapted to this recipe adopted by way of example, that is to say the mixer to the suspension (slurry of water and binder) produced from components A and B, with the total output of the entire system being generally several thousand liters per hour for high screed or mortar discharge rates are possible.
- FIG. 3 shows an expanded embodiment according to FIG. 1 with the basic control scheme.
- the same reference numerals are used for the same components as in FIG. 1.
- the control-related linkage of the individual conveying and / or metering devices 4 to 12 to the electronic control 20 is shown, which is connected to the respective devices via control lines 21.
- These control lines 21 can also transmit measurement data for actual value acquisition, for example, in the case of the regulated throttle valve 4 for the water, at the same time register the water flow and, after evaluation, preferably in a PID controller in the electronic control 20, then transmit the corresponding control command to the throttle valve.
- these bidirectional control lines 21 are multi-core. However, a multiplex operation can also be provided or the data transmission can take place wirelessly.
- a second throttle valve 4 ' is also provided, with which a constant delivery rate of the slurry or suspension produced from components A and B is detected and adjusted.
- the respective filling level can also be detected on the two mixing devices 9 and 10.
- Material-specific variables such as viscosities, mixing temperatures and the like can also be recorded. For example, by measuring points on the feed pump 11, for. B. by Drehraomenter bedroom, the viscosity behavior of Building material to be assessed.
- Corresponding measuring points on the conveying line 14 and the discharge nozzle 12 arranged at the end of the line can also be used to detect a conductivity difference and thus the quality of the building material produced. All these measurement, control or regulation data are recorded, processed and evaluated in the electronic control 20.
- the control data for standard building material qualities are preferably stored in the form of an EPROM memory, so that several building material qualities and compositions can be called up. These programmed building material compositions have been checked in the laboratory by the building material or component supplier, so that additional safety with regard to the building material quality is guaranteed.
- the users can vary these building material compositions to a certain extent, but only within the limits as they are stored in the program in the electronic control 20. This prevents inadmissible changes in quality.
- the detection of the air temperature, air humidity and the like can also be carried out automatically by sensors.
- the control and thus the recorded data are returned to the manufacturing plant.
- the data can be taken over and additional quality monitoring can be carried out.
- Such data exchange can, however, also be carried out by authorized personnel when filling (blowing in) the storage containers 2 or 3, as well as via remote data transmission with a corresponding access authorization stored in the electronic control 20.
- the multi-chamber silo system 30 or individual storage containers 1, 2 and 3 with the conveying and / or dosing devices connected to them are retrieved, they can also be checked, maintained and calibrated. As a result, a particularly high level of quality assurance is achieved.
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97901565A EP0874720A1 (de) | 1996-01-18 | 1997-01-20 | Verfahren zur herstellung von fliess- und/oder pumpfähigen baustoffen, insbesondere fliessestrichen |
PL97327850A PL327850A1 (en) | 1996-01-18 | 1997-01-20 | Method of making fluid and/or pumpable building materials in particular fluid surface finishing materials |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996101696 DE19601696A1 (de) | 1996-01-18 | 1996-01-18 | Verfahren zur Herstellung von fließ- und/oder pumpfähigen Baustoffen, insbesondere Fließestrichen |
DE19601696.7 | 1996-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997026121A1 true WO1997026121A1 (de) | 1997-07-24 |
Family
ID=7783088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/000254 WO1997026121A1 (de) | 1996-01-18 | 1997-01-20 | Verfahren zur herstellung von fliess- und/oder pumpfähigen baustoffen, insbesondere fliessestrichen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0874720A1 (de) |
DE (1) | DE19601696A1 (de) |
PL (1) | PL327850A1 (de) |
WO (1) | WO1997026121A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20100422A1 (it) * | 2010-03-16 | 2011-09-17 | Impresa Max S R L | Sistema di posa del pacchetto di pavimentazione poggiante su un solaio strutturale. |
DE102011102337A1 (de) * | 2011-05-25 | 2012-11-29 | Werner Sobek | Vorrichtung und Verfahren zum Herstellen von Bauteilen mit zumindest einer kontinuierlichen Eigenschaftsänderung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005014704B4 (de) * | 2004-03-26 | 2010-04-01 | Suspensionsbeton Ltd. | Materialaufbereitungsanlage zur Herstellung von Leichtwerkstoffen |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4298288A (en) * | 1980-01-25 | 1981-11-03 | Anthony Industries, Inc. | Mobile concreting apparatus and method |
GB2090761A (en) * | 1981-01-06 | 1982-07-21 | Power Sprays Ltd | Mixing apparatus |
GB2158728A (en) * | 1984-05-10 | 1985-11-20 | D & H Materials | Mixing plant |
EP0199884A2 (de) * | 1983-11-07 | 1986-11-05 | Torsten Nikolaus Ljung | Verfahren zur Herstellung von Beton in einem beweglichen Posten |
DE8810499U1 (de) * | 1988-08-19 | 1988-10-13 | Maschinen- und Apparatebau August Tepe GmbH, 2848 Vechta | Vorrichtung zur Herstellung gebrauchsfertiger Mörtel- oder Estrichmischungen |
US5149192A (en) * | 1988-09-30 | 1992-09-22 | Mixer Products, Inc. | System for mixing cementitious construction materials |
WO1994021434A1 (en) * | 1993-03-23 | 1994-09-29 | Hydromix, Inc. | Concrete mixing system with cement/water premixer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD293545A5 (de) * | 1990-03-20 | 1991-09-05 | Richter,Thomas,De | Verfahren und anordnung zur steuerung der dosierung von mischungsbestandteilen bei der betonaufbereitung |
US5452954A (en) * | 1993-06-04 | 1995-09-26 | Halliburton Company | Control method for a multi-component slurrying process |
US5413154A (en) * | 1993-10-14 | 1995-05-09 | Bulk Tank, Inc. | Programmable modular system providing controlled flows of granular materials |
-
1996
- 1996-01-18 DE DE1996101696 patent/DE19601696A1/de not_active Withdrawn
-
1997
- 1997-01-20 WO PCT/EP1997/000254 patent/WO1997026121A1/de not_active Application Discontinuation
- 1997-01-20 EP EP97901565A patent/EP0874720A1/de not_active Withdrawn
- 1997-01-20 PL PL97327850A patent/PL327850A1/xx unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4298288A (en) * | 1980-01-25 | 1981-11-03 | Anthony Industries, Inc. | Mobile concreting apparatus and method |
GB2090761A (en) * | 1981-01-06 | 1982-07-21 | Power Sprays Ltd | Mixing apparatus |
EP0199884A2 (de) * | 1983-11-07 | 1986-11-05 | Torsten Nikolaus Ljung | Verfahren zur Herstellung von Beton in einem beweglichen Posten |
GB2158728A (en) * | 1984-05-10 | 1985-11-20 | D & H Materials | Mixing plant |
DE8810499U1 (de) * | 1988-08-19 | 1988-10-13 | Maschinen- und Apparatebau August Tepe GmbH, 2848 Vechta | Vorrichtung zur Herstellung gebrauchsfertiger Mörtel- oder Estrichmischungen |
US5149192A (en) * | 1988-09-30 | 1992-09-22 | Mixer Products, Inc. | System for mixing cementitious construction materials |
WO1994021434A1 (en) * | 1993-03-23 | 1994-09-29 | Hydromix, Inc. | Concrete mixing system with cement/water premixer |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20100422A1 (it) * | 2010-03-16 | 2011-09-17 | Impresa Max S R L | Sistema di posa del pacchetto di pavimentazione poggiante su un solaio strutturale. |
DE102011102337A1 (de) * | 2011-05-25 | 2012-11-29 | Werner Sobek | Vorrichtung und Verfahren zum Herstellen von Bauteilen mit zumindest einer kontinuierlichen Eigenschaftsänderung |
Also Published As
Publication number | Publication date |
---|---|
EP0874720A1 (de) | 1998-11-04 |
DE19601696A1 (de) | 1997-10-09 |
PL327850A1 (en) | 1999-01-04 |
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