WO1991012946A1 - Equipement de fabrication et d'exploitation pour le beton en vrac - Google Patents

Equipement de fabrication et d'exploitation pour le beton en vrac Download PDF

Info

Publication number
WO1991012946A1
WO1991012946A1 PCT/FI1991/000059 FI9100059W WO9112946A1 WO 1991012946 A1 WO1991012946 A1 WO 1991012946A1 FI 9100059 W FI9100059 W FI 9100059W WO 9112946 A1 WO9112946 A1 WO 9112946A1
Authority
WO
WIPO (PCT)
Prior art keywords
eguipment
mass
storage tank
intermediate storage
concrete
Prior art date
Application number
PCT/FI1991/000059
Other languages
English (en)
Inventor
Risto Minkkinen
Original Assignee
Risto Minkkinen
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 Risto Minkkinen filed Critical Risto Minkkinen
Publication of WO1991012946A1 publication Critical patent/WO1991012946A1/fr

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

Definitions

  • the object of the invention is manufacturing and operating eguipment for concrete mass, which consists of a mixer to mix the reguired dry substance and water, and a mass pump and pipework connected to it to lead the concrete mass to the casting place.
  • the invention is especially intended for use in a concrete element factory.
  • the intention of the invention is to create a new kind of manufacturing and operating eguipment for concrete mass, by means of which firstly the capacity of a single concrete plant can be increased, and secondly the amount of labour reguired can be fundamentally reduced.
  • the characteristic features of the eguipment in accordance with the invention appear in the accompanying Patent Claims. It is advantageous if there are several intermediate storage tanks, when the capacity of a single concrete plant increases considerably from the present level. By means of even one intermediate tank the mass can be manufactured beforehand, when the momentary mass feed can be many times the average amount manufactured. By using several intermediate storage tanks and pumps production breaks can be avoided when carrying out several castings simultaneously. Other advantages of the invention appear in connection with the example of performance presented later.
  • Figure 1 shows a schematic lay-out of an element factory.
  • Figure 2 shows schematically eguipment in accordance with the invention.
  • Figure 3 shows a second form of application of the invention.
  • Figure 4 shows a third form of application of the invention.
  • Figure 5 shows the construction of a connection permitting rotation.
  • the mixer of the concrete plant is marked with the reference number 1, from which mixer the mass drops down the emptying funnel 8 into the intermediate storage tank 2.
  • the reference number 1 is a known cylindrical tank that revolves around a horizontal axis, inside of which there are spiral flanges to move and to mix the concrete mass.
  • the connection 19, which permits rotation, between the emptying funnel 8 and the intermediate storage tank 2 is tight, in which case the tank 2 can be filled practically completely full.
  • the emptying funnel 8 is jointed by means of hinge 18 in such a way that it can be turned to the side for maintenance among other things.
  • connection 16 which permits rotation, between the feed channel 9 of the pump 3 and the discharge end 13 of the intermediate storage tank 2 is tight, in which case the mass cannot sgueeze out, even though the tank 2 would be completely filled.
  • Connection 19 at the other end can be made in the same way.
  • the conical end 13 of the intermediate storage tank 2 extends inside the feed channel 9 of the pump 3, Figure 5.
  • a rubber flange 17 is attached round the conical end 13 protruding into feed channel 9. This is compressed onto the surface of the conical end 13 by the pressure of the concrete mass.
  • the intermediate storage tank 2 includes an internal spiral, which pushes the mass forward. If the pump does not pull the mass, its surface assumes a sloping position in tank 2 in accordance with hydrostatic eguilibrium.
  • the counter-pressure in the raised feed channel 9 keeps the concrete mass in tank 2 even when its rotation continues. A situation of this kind is shown in Figure 2 by a broken line.
  • the discharge of the concrete mass from the intermediate storage tank 2 to the pump 3 does not reguire any special supervision.
  • the feed channel 9 can be open on the upper side to ease maintenance among other things, if it is sufficiently high the receive the above- mentioned hydrostatic pressure.
  • jointed jib 5 extends to the area of the forms 10 and can direct the casting nozzle 12 over the entire area.
  • the eguipment includes a funnel 11 adapted to the casting nozzle 12 and a return pipe attached to it.
  • the casting nozzle 12 is placed tightly into the funnel 11 and makes the concrete mass circulate in the pipework 4. This is necessary during interrup ⁇ tions in casting, when the binding of the concrete mass in the pipework during an interruption is prevented.
  • the return pipe 7 directs the concrete mass to the emptying funnel 8, from which it flows to the intermediate storage tank 2. If reguired known retardants are mixed with the mass, if it is known that the casting may be interrupted for several hours.
  • the return pipe 7 includes a pneumatic emptying device, so that if reguired it can be emptied of concrete, while the casting itself is under way. First of all a small amount of slack mass is put into the pipe, after which a foam rubber ball is placed in it. This acts as a piston propelled by compressed air, pushing the mass in front of it out of the pipe. The mass does not adhere at all to the smooth steel pipe.
  • Figure 3 shows another kind of distribution arrangement for the concrete mass.
  • a telescopic jib 6 in accordance with publication WO90/10588 is used to distribute the concrete mass to the casting area.
  • the arran ⁇ gement of the eguipment corresponds in all other respects to the aforementioned form of application.
  • the mass flows evenly from the mixer 1 to the intermediate storage tank 2, which is independent of the operation of pump 3.
  • pump 3 the mass if transferred through pipework 4 to the forms 10 according to the casting requirements.
  • the intermediate storage tank in accordance with the invention makes possible a guite new kind of general arrangement in an element factory.
  • the intermediate storage tank 2 is filled by vehicle 15.
  • the intermediate storage tank 2 does not then have to be in the immediate vicinity of the concrete mixer, in which case the element production unit proper can be located separately from point of manufacture of the concrete mass.
  • the technigues shown in publications WO 90/09266 and WO 90/08021 are used in the transfer of the concrete mass. When using the aforementioned jointed " emptying funnel the feed of the concrete mass to the intermediate storage tank can take place alter ⁇ natively either from the mixer or from a vehicle.

Landscapes

  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

L'équipement de fabrication et d'exploitation pour le béton en vrac comprend un mélangeur (1) pour mélanger les matières sèches requises avec de l'eau, une pompe de matières en vrac (3) et les tuyauteries (4, 12) reliées à ladite pompe pour véhiculer le béton au lieu de pose. L'équipement prévu par l'invention comprend un cylindre rotatif servant de réservoir de stockage intermédiaire (2), qui est indépendant du fonctionnement de la pompe (3), des dispositifs pour transporter la masse de béton depuis le mélangeur à béton (1) au réservoir de stockage intermédiaire (2) et du réservoir de stockage intermédiaire (2) à la pompe (4), y compris un raccord étanche permettant un mouvement rotatif entre le canal d'alimentation surélevé (9) de la pompe (3) et le réservoir intermédiaire de stockage.
PCT/FI1991/000059 1990-02-28 1991-02-26 Equipement de fabrication et d'exploitation pour le beton en vrac WO1991012946A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI900999A FI900999A (fi) 1990-02-28 1990-02-28 Anlaeggning foer framstaellning och anvaendning av betongmassa.
FI900999 1990-02-28

Publications (1)

Publication Number Publication Date
WO1991012946A1 true WO1991012946A1 (fr) 1991-09-05

Family

ID=8529963

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1991/000059 WO1991012946A1 (fr) 1990-02-28 1991-02-26 Equipement de fabrication et d'exploitation pour le beton en vrac

Country Status (3)

Country Link
AU (1) AU7250891A (fr)
FI (1) FI900999A (fr)
WO (1) WO1991012946A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2166510A1 (de) * 1971-08-20 1974-07-11 Bergwerksverband Gmbh Vorrichtung zum fuehren des austrittsendes eines foerderschlauches einer betonspritzmaschine
SE390134B (sv) * 1972-05-24 1976-12-06 Schwing G Anordning for mottagande och efterblandning av betong
GB1585257A (en) * 1977-05-23 1981-02-25 Laing John Services Application of jointing or packing materials such as mortars

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2166510A1 (de) * 1971-08-20 1974-07-11 Bergwerksverband Gmbh Vorrichtung zum fuehren des austrittsendes eines foerderschlauches einer betonspritzmaschine
SE390134B (sv) * 1972-05-24 1976-12-06 Schwing G Anordning for mottagande och efterblandning av betong
GB1585257A (en) * 1977-05-23 1981-02-25 Laing John Services Application of jointing or packing materials such as mortars

Also Published As

Publication number Publication date
FI900999A0 (fi) 1990-02-28
FI900999A (fi) 1991-08-29
AU7250891A (en) 1991-09-18

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