EP0478865A1 - Portable plant for proportioning and tempering dry concrete in bulk or other granular products - Google Patents

Portable plant for proportioning and tempering dry concrete in bulk or other granular products Download PDF

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Publication number
EP0478865A1
EP0478865A1 EP90500114A EP90500114A EP0478865A1 EP 0478865 A1 EP0478865 A1 EP 0478865A1 EP 90500114 A EP90500114 A EP 90500114A EP 90500114 A EP90500114 A EP 90500114A EP 0478865 A1 EP0478865 A1 EP 0478865A1
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EP
European Patent Office
Prior art keywords
proportioning
homogenizing
feeding
tank
chamber
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Withdrawn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
EP90500114A
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German (de)
English (en)
French (fr)
Inventor
José Ramon Madera Iglesias
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0478865A1 publication Critical patent/EP0478865A1/en
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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
    • 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
    • B28C7/0046—Storage or weighing apparatus for supplying ingredients
    • B28C7/0053—Storage containers, e.g. hoppers, silos, bins
    • B28C7/0069—Storage containers, e.g. hoppers, silos, bins having compartments

Definitions

  • the present invention relates to a portable plant for proportioning and tempering mainly dry concrete, permitting the said product or other granular products to be stored, produced and processed on the very site where it is to be used, whilst guaranteeing the quality of its specifications.
  • the concrete for use in the building and engineering construction sector is produced either in situ or in industrial installations or plants designed for such purpose, which plants supply, by means of concrete mixing vehicles, the concrete in a fresh state, already tempered and ready for immediate use because the fresh concrete sets within a short period of time (approximately two hours), after which it can no longer be used.
  • the industrial plants designed for producing the concrete are normally fixed installations, for medium- to large- scale productions, operating with the same principles.
  • the most outstanding common feature between all these installations is that they only proportion, and in some instances temper, the fresh concrete which, in order to be supplied to the building site where it has to be used, is indefectibly introduced in a concrete mixing truck which transports the concrete, maintaining it under constant tempering.
  • the said product refers to a dry concrete in bulk, all the components of which have been subjected to specific processings so that on the whole, it presents a degree of residual humidity of lower than 1.5% of its weight, thereby assuring a life-span of the product, before being tempered with water, of more than 3 days and, even under optimum conditions, of more than 30 days from its manufacture to its use, under ideal technical conditions and to which water will be added, we repeat, just before it will be used.
  • a further object of the invention is to provide a plant of the type mentioned, the elements of which are arranged to obtain an accurate, uniform final quality of the product, by means of a very simple manufacturing process which can be carried out by a single person requiring no specific prior knowledge.
  • This plant therefore, incorporates the pertinent means and control panels for the automatic control of the manufacturing process.
  • a still further object of the invention is to adapt one of the said plants so that it can be transported by means of conventional tractor equipments, which plant, inasmuch as its functioning is independent of the transportation elements, enables higher performances to be obtained than those obtained with the conventional tempering and transportation system incorporated in concrete mixing vehicles.
  • Yet a further object of the invention is to provide a portable plant which, due to its peculiar design, enables the quality or pre-established characteristics of the end product to be modified, by, for example, either altering the cement-water ratio, in particular phases of the production, or by adding, in partial phases, various additives for particular applications, so that it will be possible to obtain, with a single plant, a diversified production, depending on the specific needs at each moment.
  • a still further object of the invention is to proportion a non-contaminating portable plant for processing dry concrete in bulk or other granular products, since it is designed to store and conserve the said products hermetically, without contacting the outside, whilst the said products are in a powdered form, protected from the wind.
  • This invention specially enables industrial plants and installations designed for producing con- cerete to manufacture their products in accordance with preestablished manufacturing plans and not under the specific conditions of an order. It also enables such products to be stored for long periods of time under suitable conditions of use and determines large savings in fuel.
  • the plant for proportioning and tempering concrete of this invention is comprised of a storage bin or tank provided with means for emplacing it into the ground where the plant will be positioned, as well as other means for facilitating the loading and transportation thereof in a tractor to comply with the said portable characteristic.
  • the said tank could, depending on the case and application, be divided totally or partly into compartments and will be provided with two types of filler inlets: one for factory loading having tightness characteristics, arranged laterally so that when the plant occupies its filling position, in other words resting on its longitudinal axis, the said inlet will be positioned in an upper plane; and another for in situ loading, that is to say at the point at which the plant is installed, so designed to enable pneumatic loading means to be coupled thereto. If the interior of the tank is divided, the number of filler inlets, of one type or the other, will naturally coincide with the number of independent compartments. It has been demonstrated, when the tank is divided into two like compartments, that the centre line of the wall determining the internal division should almost coincide with the axis of the factory filler inlets, to thereby facilitate the filling operations.
  • the lower part of the tank which adopts the shape of an inverted truncated cone, is provided with a homogenizing, feeding and proportioning chamber into which the product, stored in the tank is deposited, to be homogenized, fed and proportioned in a forced manner to the tempering chamber, by means of forced homogenizing, feeding and proportioning means formed mainly of endless screws and other vertical, horizontal or mixed, combining one arrangement and the other, positioning and driving systems.
  • Feeding is facilitated by the section given to the outlet of the homogenizing, feeding and proportioning chamber, since by increasing the said section an improved feeding is achieved.
  • the use of a double circular, almost elliptical section having a dividing wall or not is recommendable since it enhances the results of the mere circular section.
  • Even the wall itself, forming the internal division of the tank, improves the drop of the product, preventing the formation of domes, which results in a a more appropriate feeding.
  • a tempering chamber in which the dry concrete in bulk or other granular products or additives coming from the former chamber are conveniently tempered with water which will be supplied to the said tempering chamber by conventional means provided with the suitable devices for controlling the flow until the end product in question is obtained, which end product will be discharged through the pertinent outlets capable of being located at different positions.
  • the portable plant of the invention (1) is comprised of a tank (2) adopting a general cylindrical shape, the lower part (3) of which is shaped as an inverted truncated cone.
  • the plant (1) To install the plant in the work yard, the plant (1) includes emplacement means comprised of support legs (4).
  • the said tank (2) is provided with a laterally positioned factory filler inlet (5), so that in the working position on the site (figures 1 to 9) the inlet is found on one side and therefore inoperative, whilst when the plant rests on its longitudinal axis, that is to say, when the plant occupies its transportation and factory filling position (figure 10), the said inlet is encountered in a higher position, wherefore it can be reached by the pertinent filler means.
  • the tank (2) could be provided with an in situ filler inlet (6), for the instance in which the tank is filled once the plant has been installed, occupying its work position.
  • the said inlet will adopt the shape of a tube capable of being coupled to pneumatic loading means (not shown) which is prefereably positioned at the lower zone of the tank.
  • each compartment will be associated to the corresponding filler inlets, of one type or the other, as previously described.
  • the centre line of the dividing wall (10) and the axis of the factory filler inlets (5) should almost coincide.
  • a chamber (7) for homogenizing, feeding and proportioning the product contained therein.
  • the lower section of the said chamber (7) may simply be circular, as shown in figure 1. Nonetheless, to improve feeding and proportioning, it has been demonstrated that the said section should be almost elliptical, preferably with a central or double circular dividing wall, as shown in detail in figures 2 to 9.
  • a tempering chamber which will incorporate the pertinent water inlet means (not shown) to carry out the final tempering of the product which will be discharged through the corresponding discharge openings as a finished and ready-for-use product.
  • the orientation of the said chamber could be changed between two 180 degree-opposed positions, to thereby position the discharge opening at one side of the plant or at the other side thereof, as may be necessary.
  • the said chamber should be rotary, so that its discharge opening could be positioned at 360 degrees.
  • the said water inlet means for tempering will be provided with means for shutting-off and regulating the inlet flow, thus enabling the ratio between the water and the dry concrete or other granular products which are being tempered to be adjusted at all times.
  • the chamber (7) is not arranged forming a part of the tank (2), but it is positioned along with the tempering chamber (8) in alignment, ahead of it and in the same plane.
  • the homogenizing, feeding and proportioning of the dry concrete in bulk and any other granular products present in the tank (2) will be forced, through forced homogenizing, feeding and proportioning means (9) mainly comprised of endless screws and other systems. Only through forced driving mechanisms is it possible to obtain an adequate homogenization of the product and that the quantity penetrating therefrom into the tempering chamber is the desired quantity.
  • the perfect adaptation of the end product (concrete) to the required specifications mainly depends upon the cement-aggregates-water ratio, so that a disproportion in the said ratio will render the end product unfit for its specific purpose.
  • the said forced homogenizing and proportioning means could adopt a vertical arrangment and operation, as shown in figures 1, 5, 7 and 9, or a horizontal, as shown in figures 2, 3, 4, 6 and 8, in which they are positioned in the same plane as the tempering means and are activated by the same driving devices.
  • the homogenizing and proportioning chamber (7) is positioned in alignment with the tempering chamber (8) in the said same plane.
  • the vertical homogenizing, feeding and proportioning means can act jointly or the homogenizing and feeding means can act independently, the proportioning means being formed separately.
  • the tank (2) could be undivided as shown in figures 1 and 2, or it could be divided. This division may be partial, that is the entire tank is not to be divided, as shown in the embodiment of figure 3, in which the compartments only affect the end section of the tank.
  • the internal dividing wall (10) is used, which divides the said lower section of the tank into two sections or compartments 2a and 2b which intercommunicates at the top. Further, the said dividing wall improves the drop of the product, preventing the formation of domes.
  • any one of the sections 2a or 2b may constitute a reserve tank, wherefore each of the said sections will have independent outlets which will include separate shut-off means, so that once the contents of one of these sections has been spent, the contents of the other section will still remain intact.
  • the division will be total, two completely separated and isolated compartments or sections 2a and 2b being formed inside the tank, thereby enabling products having a diverse nature to be stored.
  • the said products could subsequently be subjected to intertempering or they could be tempered separately to obtain two differentiated end products.
  • the said separate sections can have like dimensions, as shown in figures 4 and 5, or they can have different sizes, as shown in figures 6 to 9, in which the compartment having a smaller capacity 2b is placed laterally and at a lower position with respect to compartment 2a.
  • each of the said compartments will include filler inlets (5-6) as well as independent adjustable outlets.
  • This arrangement of two isolated compartments enables products having a diverse nature to be stored.
  • the characteristics of one of them as well as the contents of the larger section could be enriched or modified, by adding the product contained in the smaller section in accordance with a dose which could also be adjusted.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
EP90500114A 1990-10-04 1990-12-05 Portable plant for proportioning and tempering dry concrete in bulk or other granular products Withdrawn EP0478865A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9002517 1990-10-04
ES9002517A ES2020794A6 (es) 1990-10-04 1990-10-04 Planta movil para la dosificacion y amasado de hormigon seco a granel u otros productos granulados.

Publications (1)

Publication Number Publication Date
EP0478865A1 true EP0478865A1 (en) 1992-04-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90500114A Withdrawn EP0478865A1 (en) 1990-10-04 1990-12-05 Portable plant for proportioning and tempering dry concrete in bulk or other granular products

Country Status (2)

Country Link
EP (1) EP0478865A1 (es)
ES (1) ES2020794A6 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108789838A (zh) * 2018-06-29 2018-11-13 博纳德（天津）港口工程有限公司 一种水下细石砼拌合输送一体设备

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH463391A (fr) * 1967-01-06 1968-09-30 Maxime Suteau Louis Rene Silo mobile
DE2259881B1 (de) * 1972-12-07 1974-04-04 Eugen Dietterle Kg, Gips- Und Saegewerk, 7031 Gueltstein Vorrichtung zur Versorgung von Verputzmaschinen mit trockenem Gips
DE2323196A1 (de) * 1973-05-08 1974-11-21 Lonza Werke Gmbh Vorrichtung zum lagern, transportieren und kontinuierlichen anmischen und verspritzen von trockenmoertel
EP0093473A2 (en) * 1982-04-30 1983-11-09 Framix B.V. Process and apparatus for the preparation of mortars
DE3421916A1 (de) * 1984-06-13 1985-12-19 Hasit Trockenmörtel GmbH & Co KG, 8050 Freising Vorrichtung fuer die herstellung von daemm-moertel
GB2183613A (en) * 1985-11-06 1987-06-10 Rudi Stegmuller Apparatus for use in the transportation and production of cementitious mixes
EP0268991A2 (de) * 1986-11-28 1988-06-01 Maschinen- und Apparatebau August Tepe GmbH Vorrichtung zur Herstellung gebrauchsfertiger Mischungen aus in einem Silo bereitgehaltenem Schüttgut
EP0318874A1 (de) * 1987-12-04 1989-06-07 Silo Estrich Gmbh + Co. Vertriebs Kg. Vorrichtung zur Herstellung von verarbeitungsfertigem Mörtel, Estrich o.dgl.
EP0374418A1 (de) * 1988-12-07 1990-06-27 Maschinen- und Apparatebau August Tepe GmbH Vorrichtung zur Herstellung gebrauchsfertiger Mischungen aus Schüttgut, wie z.B. Zement und Sand

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH463391A (fr) * 1967-01-06 1968-09-30 Maxime Suteau Louis Rene Silo mobile
DE2259881B1 (de) * 1972-12-07 1974-04-04 Eugen Dietterle Kg, Gips- Und Saegewerk, 7031 Gueltstein Vorrichtung zur Versorgung von Verputzmaschinen mit trockenem Gips
DE2323196A1 (de) * 1973-05-08 1974-11-21 Lonza Werke Gmbh Vorrichtung zum lagern, transportieren und kontinuierlichen anmischen und verspritzen von trockenmoertel
EP0093473A2 (en) * 1982-04-30 1983-11-09 Framix B.V. Process and apparatus for the preparation of mortars
DE3421916A1 (de) * 1984-06-13 1985-12-19 Hasit Trockenmörtel GmbH & Co KG, 8050 Freising Vorrichtung fuer die herstellung von daemm-moertel
GB2183613A (en) * 1985-11-06 1987-06-10 Rudi Stegmuller Apparatus for use in the transportation and production of cementitious mixes
EP0268991A2 (de) * 1986-11-28 1988-06-01 Maschinen- und Apparatebau August Tepe GmbH Vorrichtung zur Herstellung gebrauchsfertiger Mischungen aus in einem Silo bereitgehaltenem Schüttgut
EP0318874A1 (de) * 1987-12-04 1989-06-07 Silo Estrich Gmbh + Co. Vertriebs Kg. Vorrichtung zur Herstellung von verarbeitungsfertigem Mörtel, Estrich o.dgl.
EP0374418A1 (de) * 1988-12-07 1990-06-27 Maschinen- und Apparatebau August Tepe GmbH Vorrichtung zur Herstellung gebrauchsfertiger Mischungen aus Schüttgut, wie z.B. Zement und Sand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108789838A (zh) * 2018-06-29 2018-11-13 博纳德（天津）港口工程有限公司 一种水下细石砼拌合输送一体设备

Also Published As

Publication number Publication date
ES2020794A6 (es) 1991-09-16

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