EP0394785B1 - Moyens et procédé pour colorer automatiquement du béton - Google Patents

Moyens et procédé pour colorer automatiquement du béton Download PDF

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Publication number
EP0394785B1
EP0394785B1 EP90107133A EP90107133A EP0394785B1 EP 0394785 B1 EP0394785 B1 EP 0394785B1 EP 90107133 A EP90107133 A EP 90107133A EP 90107133 A EP90107133 A EP 90107133A EP 0394785 B1 EP0394785 B1 EP 0394785B1
Authority
EP
European Patent Office
Prior art keywords
concrete
batches
water
container
inorganic synthetic
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.)
Expired - Lifetime
Application number
EP90107133A
Other languages
German (de)
English (en)
Other versions
EP0394785A1 (fr
Inventor
Claudio Bertolini
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.)
Sami SNC Di Bertolini Claudio & C
Original Assignee
Sami SNC Di Bertolini Claudio & C
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 Sami SNC Di Bertolini Claudio & C filed Critical Sami SNC Di Bertolini Claudio & C
Priority to AT90107133T priority Critical patent/ATE84742T1/de
Publication of EP0394785A1 publication Critical patent/EP0394785A1/fr
Application granted granted Critical
Publication of EP0394785B1 publication Critical patent/EP0394785B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B28C7/0431—Weighing predetermined amounts of ingredients, e.g. for consecutive delivery using a weighing belt or the like
    • 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
    • B28C9/002—Mixing systems, i.e. flow charts or diagrams; Making slurries; Involving methodical aspects; Involving pretreatment of ingredients; Involving packaging

Definitions

  • the invention concerns a process for the automatic coloring of concrete.
  • the coloring of the concrete is obtained through the use of inorganic synthetic pigments, like iron oxides, chrome oxides and the like.
  • the first of these pigments which are used to obtain the colors red, yellow, black, brown and their shades, and the second, which are used to obtain green, and at any rate inorganic synthetic pigments in general, are substantially added to the cement and aggregates directly in the concrete mixers.
  • a weighing system for dispensing concrete in measured amounts of material required to complete a load is disclosed in US-A-3.994.404.
  • This document discloses a mixing plant for dry concrete ingredients comprising a plurality of mixing and measuring units mounted on a single truck, a collecting belt conveyor and a truck loading and distributing device arranged to supply the dry concrete ingredients to ready-mix trucks.
  • Each unit may carry a particular material or concrete ingredient and includes a belt conveyor, a weighing system arranged for weighing of material on the conveyor and a hopper mounted above the latter and having a coarse dispensing outlet and a fine dispensing outlet overlying the conveyor and longitudinally spaced along the latter.
  • Another drawback consists in the fact that, in the dry mixes, it is impossible to completely and optimally exploit the oxides as the particles, besides dispersing easily in air, are not homogeneously mixed with those of the cement.
  • the oxides are prediluted in water by the producing companies; this system, although it permits a better yield and homogeneity of the mixes, also presents some particular drawbacks, first of all the fact that the prediluted products are packed in drums, or at any rate very bulky containers, for which storage is necessary, with consequent increased costs of packing, transport, storage and of any recycling or disposal of the throw-away containers.
  • Another drawback consists in the fact that the prediluted oxides create particular pollution problems, as, once a change of color is required, it is necessary to wash all the pipes, pumps and plants in general, with subsequent drainage of the water in sewer due to the fact that it is difficult to work in the presence of purification systems.
  • Another drawback consists in the high costs of the products as fluidizing and deflocculating additives are present in them to prevent the sedimentation of the oxide particles and keep them suspended.
  • a process according to the preamble of claim 1 is known from DE-A-3.436.813.
  • one of the concrete additives is diluted into a predetermined portion of the water required for the preparation of the concrete in a container and is fed to the concrete mixer containing the concrete ingredients; while the remaining water portion is fed directly to the concrete mixer.
  • This apparatus does not completely solve the above-listed drawbacks since the coloring oxides are not soluble in water and their feeding means and the container are not completely washed clean at the end of the feeding cycle.
  • the object of the present invention is to provide a process for automatic coloring concrete which overcomes the drawbacks stated above.
  • the process of the present invention allows the following results to be achieved : the oxide mixes are produced automatically, with precise, repetitive batches; the predilution of the oxides is carried out inside a container with a mixer in which the water has also the subsequent function of washing all the parts that have come into contact with the products; the prediluted oxides are sent automatically to the concrete mixers in which the cement and aggregates are already being mixed; subsequently, after the mixing of the cement-aggregates with the prediluted oxides, a further batch of water is sent into the container with a mixer, necessary to complete the total, final mixing, which operates a washing action of all parts.
  • the advantages of the present invention mainly consist in the fact that, besides the homogeneity and uniformity of the mixes, it is possible to vary automatically the quantity of coloring oxides and mix them together to obtain any special effect, e.g. streaks and imitation of colour which are obtained in the baking of brick products, and to obtain constant, optimal chromatic yields of colour.
  • Another advantage consists in the fact that the quantities of coloring oxides are accurately controllable by the programmed weighing systems.
  • the microbatchers (2) can be programmed in opening and closure on the basis of the pre-established mixes.
  • the microbatchers (2) discharge in the underlying conveyor belt (3) the desired quantity of product contained in the corresponding loading hoppers (2′).
  • the conveyor belt (3) can be discharged oxides from one or more microbatchers (2), whose opening and closure is governed by the quantity of product discharged, weighed directly by the underlying system (5).
  • the conveyor belt (3) discharges everything into a container (6), preferably constructed in stainless steel, in which is positioned a mechanical mixer (7) with motor (8).
  • the mixer (7) is equipped with a plurality of rotating blades positioned at different heights, preferably but unbindingly constructed in PVC or similar materials.
  • the oxide powder/powders are mixed and prediluted in a pre-established batch of water and regulated automatically according to the program established previously and inserted in the operator's control computer.
  • the water is inserted in the same container (6) through the duct (9).
  • the opening and closing of the feed valve (10) of the water is regulated automatically by means of the programmed computer.
  • the concrete mixer needs water and it reaches it through the drain pipe (11) of the container (6).
  • the first water that reaches the concrete mixer is that in which the coloring oxides have'already been prediluted.
  • this second batch of water is discharged from the duct (9) through the valve (10); before reaching the concrete mixer to complete preparation of the colored concrete, it is discharged in the container (6) exercising a washing action, which continues during discharge through the valve (12), the pump (13) and the drain pipe (11).
  • the feed valves (10) and drain valves (12) are preferably of pneumatic type, while the circulating pump (13) is preferably of pneumatic type with diaphragm.
  • the colored concrete is ready to be discharged from the concrete mixer on the belts, towards vibrating forms and to the presses for the formation of the finished products, while the mixing and predilution plant of the colored oxides is ready to be re-used according to any other formula and/or color or shade.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Glass Compositions (AREA)

Claims (7)

  1. Procédé de coloration automatique du béton pour la production d'un matériau de construction, comprenant les étapes consistant à:
    - mettre des doses pesées de pigments synthétiques inorganiques dans un bac (6),
    - prédiluer, dans le bac (6), les doses de pigments synthétiques inorganiques avec une quantité d'eau prédéterminée,
    - mélanger, dans un mélangeur à béton, une quantité de ciment et d'agrégats requise pour la production du béton,
    - mettre, dans le mélangeur à béton, les doses prédiluées de pigments synthétiques inorganiques,
    - mettre, dans le mélangeur à béton, une quantité d'eau supplémentaire requise pour obtenir un mélange complet et homogène des composants de béton colorés,
    caractérisé en ce que les doses de pigments synthétiques inorganiques sont prémélangées, dans le bac (6), avec la quantité d'eau prédéterminée, et la quantité d'eau supplémentaire est fournie au mélangeur à béton par le même bac (6).
  2. Procédé suivant la revendication 1 caractérisé en ce que les doses prémélangées de pigments synthétiques inorganiques et la quantité d'eau supplémentaire sont fournies au mélangeur à béton par une même pompe de circulation (13).
  3. Procédé suivant la revendication 2 caractérisé en ce que la pompe de circulation (13) est une pompe pneumatique du type à diaphragme.
  4. Procédé suivant l'une quelconque des revendications précédentes caractérisé en ce que les doses de pigments synthétiques inorganiques sont préparées par une ouverture programmée de microdoseurs (2) alimentés par une vis d'Archimède et une trémie de chargement (2′) de chaque microdoseur (2) contenant un simple pigment synthétique de base inorganique.
  5. Procédé suivant la revendication 4 caractérisé en ce que les doses de pigments synthétiques inorganiques sont pesées par un système de pesée (5), de type électronique, positionné en aval des microdoseurs (2).
  6. Procédé suivant l'une quelconque des revendications précédentes caractérisé en ce que le bac (6) comporte un mélangeur (7) pourvu d'une pluralité d'ailettes rotatives, disposées à différentes hauteurs, et mises en mouvement par un moteur (8).
  7. Procédé suivant l'une quelconque des revendications précédentes caractérisé en ce que l'eau est fournie au bac (6) par une canalisation (9) comportant une vanne d'alimentation (10) réglée automatiquement par un calculateur programmé.
EP90107133A 1989-04-26 1990-04-13 Moyens et procédé pour colorer automatiquement du béton Expired - Lifetime EP0394785B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90107133T ATE84742T1 (de) 1989-04-26 1990-04-13 Mittel und verfahren zum selbsttaetigen faerben von beton.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8946831A IT1234140B (it) 1989-04-26 1989-04-26 Mezzi e procedimento per la colorazione automatica del calcestruzzo
IT4683189 1989-04-26

Publications (2)

Publication Number Publication Date
EP0394785A1 EP0394785A1 (fr) 1990-10-31
EP0394785B1 true EP0394785B1 (fr) 1993-01-20

Family

ID=11259362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107133A Expired - Lifetime EP0394785B1 (fr) 1989-04-26 1990-04-13 Moyens et procédé pour colorer automatiquement du béton

Country Status (4)

Country Link
EP (1) EP0394785B1 (fr)
AT (1) ATE84742T1 (fr)
DE (1) DE69000782D1 (fr)
IT (1) IT1234140B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1910025B (zh) * 2004-01-06 2010-05-05 Sika技术股份公司 用于借助一台喷浆机加工混凝土喷浆的方法和喷浆机

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE147657T1 (de) * 1992-10-27 1997-02-15 Matsui Mfg Co Verfahren und vorrichtung zum mischen plastischer gussmaterialien
DE4244249C1 (de) * 1992-12-26 1994-06-01 Huber Ges Fuer Versorgungs Und Verfahren und Vorrichtung zur Herstellung von Betonbauteilen sowie Betonbauteil
GB2291600B (en) * 1994-07-05 1996-08-07 Mass Measuring Sys Ltd Method for preparing a mix
US5895116A (en) * 1997-08-25 1999-04-20 W.R. Grace & Co. -Conn. Mobile admixture product manufacturing and delivery process and system
AT410421B (de) * 2000-06-23 2003-04-25 Reisinger Bruno Mag Anordnung zum einfärben von beton
US8550690B2 (en) * 2007-04-13 2013-10-08 Construction Research & Technology Gmbh Method and device for dispensing liquids
US9180605B2 (en) * 2008-01-16 2015-11-10 Cemen Tech, Inc. Volumetric concrete mixing method and apparatus
ES2390729B1 (es) * 2011-04-20 2013-11-06 Carlos Fradera Pellicer Método mejorado para la fabricación de un cuerpo de mortero de cemento y una instalación para su realización
ITFI20130148A1 (it) * 2013-06-20 2014-12-21 Sami Srl Apparecchiatura di stivaggio e dosaggio per materiali inerti con sistema perfezionato di estrazione e pesatura in continuo
CN107962677A (zh) * 2017-12-29 2018-04-27 绍兴明经科技有限公司 一种用于干混砂浆混合系统的气平衡装置及其控制方法
CN111993594A (zh) * 2020-08-07 2020-11-27 河南兴达商砼有限公司 一种混凝土输送装置及运用该装置的混凝土加工工艺
CN112388824A (zh) * 2020-11-10 2021-02-23 合肥瑞悦工贸有限公司 一种混凝土生产多级管控负压搅拌设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719030A (en) * 1953-04-07 1955-09-27 John H Dulany & Son Inc Continuous vegetable mixer and breaker
US3994404A (en) 1975-07-16 1976-11-30 Kisovec Jean Francis Portable mixing plant for concrete and the like
US4304493A (en) * 1980-02-12 1981-12-08 Frankie Donald M Sand mixer
JPS583804B2 (ja) * 1980-07-12 1983-01-22 大平洋金属株式会社 積層式パンタイプミキサによるコンクリ−ト製造法
DE3436813C1 (de) 1984-10-06 1986-05-07 Elba-Werk Maschinen-Gesellschaft Mbh & Co, 7505 Ettlingen Vorrichtung zur Spülung einer Zusatzmittelwaage bei der Betonbereitung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1910025B (zh) * 2004-01-06 2010-05-05 Sika技术股份公司 用于借助一台喷浆机加工混凝土喷浆的方法和喷浆机

Also Published As

Publication number Publication date
EP0394785A1 (fr) 1990-10-31
ATE84742T1 (de) 1993-02-15
DE69000782D1 (de) 1993-03-04
IT1234140B (it) 1992-05-04
IT8946831A0 (it) 1989-04-26

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