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WO2004091878A2 - Procede et dispositif pour fabriquer du beton cellulaire ou des melanges speciaux de betons - Google Patents

Procede et dispositif pour fabriquer du beton cellulaire ou des melanges speciaux de betons Download PDF

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Publication number
WO2004091878A2
WO2004091878A2 PCT/EP2004/003891 EP2004003891W WO2004091878A2 WO 2004091878 A2 WO2004091878 A2 WO 2004091878A2 EP 2004003891 W EP2004003891 W EP 2004003891W WO 2004091878 A2 WO2004091878 A2 WO 2004091878A2
Authority
WO
WIPO (PCT)
Prior art keywords
concrete
mixer
special
product
foam
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.)
Ceased
Application number
PCT/EP2004/003891
Other languages
German (de)
English (en)
Other versions
WO2004091878A3 (fr
Inventor
Francesco Bezzi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2004091878A2 publication Critical patent/WO2004091878A2/fr
Publication of WO2004091878A3 publication Critical patent/WO2004091878A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4203—Details; Accessories
    • B28C5/4231—Proportioning or supplying water
    • 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
    • B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
    • B28C5/381—Producing cellular concrete
    • B28C5/386—Plants; Systems; Methods
    • B28C5/388—Methods
    • 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
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4203—Details; Accessories
    • B28C5/4206—Control apparatus; Drive systems, e.g. coupled to the vehicle drive-system
    • 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
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4282—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport with moving mixing tools in a stationary container
    • 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
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0404—Proportioning
    • B28C7/0418—Proportioning control systems therefor
    • 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
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0422—Weighing predetermined amounts of ingredients, e.g. for consecutive delivery
    • B28C7/0445—Weighing predetermined amounts of ingredients, e.g. for consecutive delivery using a weighing receptacle, the feeding thereof being automatically suspended after a predetermined weight has been obtained
    • 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
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0454—Volumetric measuring devices, e.g. for consecutively delivering predetermined volumes of ingredients
    • B28C7/0459—Volumetric measuring devices, e.g. for consecutively delivering predetermined volumes of ingredients the ingredients being first supplied into measuring chambers, e.g. containers or skips

Definitions

  • the product In order to give the aerated concrete the predetermined properties, the product must remain homogeneous during the period that extends from the preparation to the laying. In order to shorten this period of time with the intention of preventing the degradation of the homogeneity and the product properties as far as possible, systems are used which are installed at the construction site or brought to the construction site by truck in containers or as a platform body. This procedure brings an increase in expenses,
  • the invention has for its object to provide a method and the corresponding device for the production of aerated concrete of the type described above, wherein the homogeneity and the technical properties defined by the project engineers are achieved in the end product by each Delivery all components are brought to the installation site and the product is prepared immediately before it is installed without the use of specific devices installed at the construction site, while reducing the total manufacturing costs.
  • the invention proposes a manufacturing process for aerated concrete which comprises the following process steps:
  • the device which is suitable for using the method according to the invention consists of a ready-mixed concrete mixer which is equipped directly below the discharge funnel with a measuring container for the binder mixture and which above with a solenoid valve equipped, feed channel and below with a dosing screw conveyor which may also be equipped with an electro valve.
  • This measuring container can also be equipped with level sensors in order to collect the exact quantities of the starting product, which are successively used for the preparation of a product
  • a mixer of known type is provided, into which a foam generator equipped with an additional metering device, with a metering water pump and with an air compressor is inserted.
  • the mixer instead of the above-mentioned measuring container, the mixer itself can be equipped with load cells or other devices for exact collection of the quantity of the starting product supplied to the mixer for the purpose of preparing the aerated concrete.
  • the foam is fed into the mixer via a measuring device which is equipped to measure the amount of foam. It is possible that specific additives can be introduced directly into the mixer.
  • the mixer preferably has a capacity of approximately 1 m 3 and serves around the
  • the aerated concrete prepared for laying is pumped out of the mixer by a pump equipped with a measuring device, the measuring device collects the amount of aerated concrete supplied to the laying point. In order to shorten the time of laying, or by a continuous
  • the invention proposes the possibility of using a mixer with two compartments, the Mixing elements can be coupled and driven by a common motor or are independent of one another and may be driven separately.
  • a mixer it is possible to prepare a subsequent product dose in one of the compartments of the mixer, for example during the time of dispensing the product which was prepared in a first phase in the first compartment of the same mixer, thereby intensively mixing the components and a continuous supply of the product is possible.
  • the invention does not preclude the use of separate mixers which may be mounted separately but are connected to one another in such a way that they can be fed alternately from the same devices with starting product, additives and water and in turn deliver the end product via a common line , All data regarding the loading of the individual components, their dosage, their delivery and the times of processing are processed by a computer for the purpose of checking and documenting the composition and properties of the prepared and delivered product and for storing this data.
  • the method according to the invention makes it possible to replace the known one
  • Ready-mix concrete mixers to use transport mixers which are equipped with one or more mixing shafts working according to the horizontal axis of rotation.
  • This has the advantage that the device can be of simpler and lighter construction (lower unladen weight) and that it can also be designed as a platform unit, which may also be suitable for the simultaneous preparation and delivery of starting products of different properties.
  • This solution also makes it possible to achieve larger loading capacities and to carry them out by means of trucks that are not specially equipped for this.
  • This solution is suitable for the construction of a mixer which is equipped with probes for the measurement of weight / volume, the axis of the Mixing elements are aligned with the horizontal shaft of the mixing blades of the transport mixer for the starting product (injection mortar, concrete mixture) and the starting product is fed to the mixer by a pump.
  • the method according to the invention and the corresponding device make it possible to conveniently guide the residual quantities and in particular the starting product, which always and at any time takes place in the traditional way for the preparation of other types of concrete, and without the addition of foam and specific additives, possibly only by admixing setting retarders.
  • the high homogeneity and quality of the product prepared by the method according to the invention and by means of the device proposed by the invention is due to the high degree of precision of the doses, the intensive mixing and hydration, the admixing of the additives at the appropriate moment during the individual production phases and in particular by the production of limited quantities of aerated concrete, which are prepared in relation to the " required laying quantity and at different times in relation to the duration of the laying.
  • the same device possibly without a foam generator, is suitable for the preparation and delivery of special concrete mixes;
  • the special feature is used that the preparation of the end product (special concrete mix) immediately before laying, under
  • the specific device for the preparation of aerated concrete can, according to the invention, be firmly attached to a known ready-mixed concrete mixer without making any major structural changes, or, if necessary, can be attached to the ready-mixed concrete mixer as an assembly unit or compact assembly for easy assembly and disassembly.
  • Fig. 1 shows a schematic side view of a ready-mixed concrete mixer of known type which with the devices for the invention
  • FIG. 2 shows a simplified functional diagram of the method according to the invention for the production of aerated concrete.
  • Fig. 3 shows a schematic side view of the longitudinal section through a transport mixer according to the invention with rotating mixing blades according to a horizontal axis and two separate compartments for the preparation of aerated concrete or special concrete mix.
  • the drum 1 has a movable closure so that during preparation of the aerated concrete, with continuous rotation of the drum in the emptying direction, the mixing is maintained and the output of the starting product takes place or can be interrupted immediately.
  • a measuring container 2 is provided under the discharge hopper 1c, in which the starting product M is measured by means of measuring probes 2a or other known devices for ascertaining the volume and / or the weight of the starting product M.
  • a dosing screw 3 is provided at the output of the measuring container 2 in order to be able to precisely determine the amount of the portion m of the starting product which passes from the measuring container via the line 3a into the mixer 4 arranged below it, which can be of a known type or can have two mixing compartments or can also be replaced by two separate mixers, which are connected to each other with regard to the feed with the starting product and the output of the end product.
  • the mixer 4 itself can be equipped with weighing cells or other devices for collecting the weight and / or the volume for the metering of the quantities of the air passage product M instead of the measuring container.
  • the foam S produced by the foam generator 5 is introduced into the mixer by means of a feed line 5a.
  • the foam generator 5 comprises an air compressor L and containers with corresponding devices for the introduction and metering of the water A and at least one
  • a container 6 is advantageously provided for the meterable introduction of water and / or additives X directly into the mixer 4.
  • the prepared aerated concrete P which is ready for installation in the required amount in the mixer for an installation chamfer and in a short time, and therefore without Degradation of the properties, which is feasible, is supplied to the laying point by a pump 7 of a known type, for example a screw pump.
  • the water supply system can be such that the water A which is introduced into different devices during the different working phases is always taken from the same container; this is also possible with respect to one or more additives X, Y.
  • the addition of water and / or specific additives during certain narrowly defined work phases enables the targeted and specific effects of the individual to be used
  • binder C additives I, special fillers
  • the corresponding data may be entered into a computer R by hand or by means of a reading device, in which all data relating to the amounts of water A, additives X, Y, an - foam S, relating to the “portion” m of the starting product M, regarding the times of processing or mixing and the output
  • Amounts of the final product P can be entered.
  • the computer R enables, by means of a specific program, the continuous monitoring of the manufacturing process and the documentation and storage of all technically, statistically and economically relevant data related to the product and the corresponding manufacturing process.
  • the drum 1 of the ready-mixed concrete mixer can be replaced by a transport mixer 10 with one or more mixing shafts 10a rotating according to a horizontal axis.
  • the inside of the transport mixer can be subdivided into compartments U, V by partition 10d with a passage near the floor with slide 10e which can be actuated from the outside.
  • Each of the compartments U, V is equipped with a hopper 10e, 10f and the rear compartment U is provided with outlet 10b for the passage of the starting product M into the mixer 4, into which the foam generator 5 also introduces 5a and the container 6 for the additives X introduces.
  • a transport mixer of this type can be of simple and light design, moreover it enables a larger loading capacity and the construction on different trucks which do not have to be specifically equipped; it is therefore also suitable as a platform unit to be transported on trucks which can also be used for other purposes.
  • the method according to the invention and the corresponding device enable the production of a volume of
  • Aerated concrete or special types of concrete which is about five times larger than that of the loading capacity of a ready-mixed concrete mixer or a transport mixer with rotating mixing blades according to a horizontal axis.
  • the specific device for producing aerated concrete which essentially consists of a measuring container 2, a mixer 4 (which may itself be equipped with measuring devices for the volume and / or the weight), and a foam generator 5 and from one
  • Dosing device or consist of several dosing devices for additives and together with a computer R form a compact unit in order to be easily mounted on a known ready-mixed concrete mixer in order to use it in an efficient system for the production of aerated concrete or special concrete mixtures, high quality, directly at the
  • Construction site transform; whereby the laying of the end product can take place without reducing the product properties and without influencing the logistics at the construction site.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

L'invention concerne un procédé pour fabriquer du béton cellulaire ou des mélanges spéciaux de bétons au moyen d'un camion bétonnière usuel et de dispositifs de dosage d'une centrale à béton pour préparer le produit de départ (M) à base de coulis d'injection, d'un mélange de béton ou de béton sec prémélangé. Le béton cellulaire (P) est préparé juste avant d'être utilisé sur le chantier, dans des quantités limitées prédéterminées et selon des cycles successifs, en fonction de données temporelles, des conditions et des exigences de son utilisation. A cet effet, des quantités (m) données du produit de départ (M) sont transvasées de la cuve (1) de la bétonnière dans un réservoir jaugeur (2), d'où elles sont ensuite acheminées en quantités dosées dans le mélangeur (4), dans lequel est ajoutée de la mousse (S) produite par un générateur de mousse (5). Les mélanges spéciaux de bétons sont préparés selon le même procédé et au moyen du même dispositif, mais sans adjonction de mousse.
PCT/EP2004/003891 2003-04-15 2004-04-13 Procede et dispositif pour fabriquer du beton cellulaire ou des melanges speciaux de betons Ceased WO2004091878A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBZ2003A000020 2003-04-15
ITBZ20030020 ITBZ20030020A1 (it) 2003-04-15 2003-04-15 Procedimento ed attrezzatura per la produzione di calcestruzzo cellulare o conglomerati speciali.

Publications (2)

Publication Number Publication Date
WO2004091878A2 true WO2004091878A2 (fr) 2004-10-28
WO2004091878A3 WO2004091878A3 (fr) 2004-12-23

Family

ID=33187366

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/003891 Ceased WO2004091878A2 (fr) 2003-04-15 2004-04-13 Procede et dispositif pour fabriquer du beton cellulaire ou des melanges speciaux de betons

Country Status (2)

Country Link
IT (1) ITBZ20030020A1 (fr)
WO (1) WO2004091878A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011093766A1 (fr) * 2010-01-28 2011-08-04 Aercrete Industries Ab Dispositif pour la fabrication de béton cellulaire fluide
EP2239120A3 (fr) * 2009-04-08 2012-10-03 ROMBOLD & GFRÖHRER GmbH & CO. KG Véhicule de transport destiné à distribuer un mélange liant/charge
US20150122153A1 (en) * 2013-11-07 2015-05-07 Air Krete, Inc. Progressive Bubble Generating System Used in Making Cementitious Foam
EP3075507A1 (fr) * 2015-03-30 2016-10-05 Rombold & Gfröhrer GmbH & Co. KG Véhicule de transport
CN107511931A (zh) * 2017-06-19 2017-12-26 北汽福田汽车股份有限公司 搅拌车、配料系统及配料方法
CN109491318A (zh) * 2019-01-04 2019-03-19 烟台杰瑞石油装备技术有限公司 一种远程超低密度自动控制系统
FR3146074A1 (fr) * 2023-02-27 2024-08-30 Moebius Equipement pour distribuer un mélange de matériaux.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115008615B (zh) * 2022-07-04 2024-07-02 朱东敏 一种制备绿色高性能混凝土的场拌及施工一体化生产线

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US2703703A (en) * 1953-04-30 1955-03-08 Nargelovic John Concrete mixing system
DE1112968B (de) * 1958-08-22 1961-08-24 Wibau Gmbh Vorrichtung zum kontinuierlichen Mischen von Feststoffen mit verfluessigten, vorzugsweise thermoplastischen, insbesondere bituminoesen Bindemitteln
GB2095569B (en) * 1981-03-07 1985-08-07 Kingmaster Ltd Plant for mixing the constituents of a settable building material composition
IE55173B1 (en) * 1984-04-13 1990-06-20 Roadstone Dublin Ltd Ready mixed concrete delivery truck
DE3433276A1 (de) * 1984-09-11 1986-03-20 Stetter Gmbh, 8940 Memmingen Verfahren und einrichtung zur bereitstellung von gasschaumbeton
GB2185729B (en) * 1986-01-29 1988-12-14 A R C Limited Transport bodies for particulate or semi-dry material
GB2258412A (en) * 1991-06-29 1993-02-10 Electrical Services Slurry containers
NL190685C (nl) * 1992-03-20 1994-07-01 Gromes Plender B V Transport- of opslaghouder voor vloeistof/vaste stofmengsels.
AU1411397A (en) * 1995-12-11 1997-07-03 Maguire Products, Inc. Gravimetric blender
GB9821830D0 (en) * 1998-10-08 1998-12-02 Est Ltd Apparatus for making foamed concrete,vehicle comprising an apparatus for making foamed concrete and method of making foamed concrete

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2239120A3 (fr) * 2009-04-08 2012-10-03 ROMBOLD & GFRÖHRER GmbH & CO. KG Véhicule de transport destiné à distribuer un mélange liant/charge
WO2011093766A1 (fr) * 2010-01-28 2011-08-04 Aercrete Industries Ab Dispositif pour la fabrication de béton cellulaire fluide
US20150122153A1 (en) * 2013-11-07 2015-05-07 Air Krete, Inc. Progressive Bubble Generating System Used in Making Cementitious Foam
US9540281B2 (en) * 2013-11-07 2017-01-10 Air Krete, Inc. Progressive bubble generating system used in making cementitious foam
EP3075507A1 (fr) * 2015-03-30 2016-10-05 Rombold & Gfröhrer GmbH & Co. KG Véhicule de transport
DE102015104849A1 (de) * 2015-03-30 2016-10-06 Rombold & Gfröhrer GmbH & Co. KG Transportfahrzeug
CN107511931A (zh) * 2017-06-19 2017-12-26 北汽福田汽车股份有限公司 搅拌车、配料系统及配料方法
CN109491318A (zh) * 2019-01-04 2019-03-19 烟台杰瑞石油装备技术有限公司 一种远程超低密度自动控制系统
FR3146074A1 (fr) * 2023-02-27 2024-08-30 Moebius Equipement pour distribuer un mélange de matériaux.

Also Published As

Publication number Publication date
WO2004091878A3 (fr) 2004-12-23
ITBZ20030020A1 (it) 2004-10-16

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