EP3412369B1 - Malaxeur de béton transporteur et son procédé de fonctionnement - Google Patents

Malaxeur de béton transporteur et son procédé de fonctionnement Download PDF

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Publication number
EP3412369B1
EP3412369B1 EP18176299.8A EP18176299A EP3412369B1 EP 3412369 B1 EP3412369 B1 EP 3412369B1 EP 18176299 A EP18176299 A EP 18176299A EP 3412369 B1 EP3412369 B1 EP 3412369B1
Authority
EP
European Patent Office
Prior art keywords
water
cleaning
drum
mixing drum
concrete mixer
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.)
Active
Application number
EP18176299.8A
Other languages
German (de)
English (en)
Other versions
EP3412369A1 (fr
Inventor
Günther Lembacher
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.)
Betonlogistik Niederoesterreich GmbH
Original Assignee
Betonlogistik Niederosterreich GmbH
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 Betonlogistik Niederosterreich GmbH filed Critical Betonlogistik Niederosterreich GmbH
Publication of EP3412369A1 publication Critical patent/EP3412369A1/fr
Application granted granted Critical
Publication of EP3412369B1 publication Critical patent/EP3412369B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
    • B08B9/0813—Cleaning containers having tubular shape, e.g. casks, barrels, drums by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • 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
    • 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

Definitions

  • the present invention relates to a transport concrete mixer with a mixing drum that can be driven to rotate, a chute for dispensing the concrete, a water tank, a water meter, a water pipe to the mixing drum and a water hose for cleaning the mixing drum and the chute, the water meter independently of one another passing through the water pipe measures the water supplied to the mixing drum and the water withdrawn via the water hose, and a switch being provided for switching on the water discharge through the water hose. It also relates to a method for operating such a ready-mixed concrete mixer.
  • Transport concrete mixers are normally not completely emptied when they return from the construction site to the concrete plant, but are immediately filled again with fresh concrete. In particular, if only a residual amount of, for example, 1 m 3 of concrete is poured in, an inadmissible amount of residual water has a significant effect.
  • a transport concrete mixer of the type mentioned according to the invention in that the switch for switching on the water delivery through the water hose has two "on" positions, namely one for cleaning the inside of the drum and one for cleaning the chute and cleaning the outside of the drum, and that after emptying the mixing drum either only dispenses water is recorded by the water hose for cleaning the inside of the drum or that the water discharge through the water hose for cleaning the chute and cleaning the outside of the drum is also recorded and these values are transmitted to a control center.
  • the amount of water added to the drum can be precisely recorded and the amount of water in the drum can be taken into account the next time it is filled, so that the remaining water does not deteriorate the concrete.
  • the driver is prompted to empty the remaining water if the amount of residual water determined by the measured values is already too high to be taken into account during the next filling, which will often be the case if only a little concrete is loaded during the next filling shall be.
  • the driver will also be asked to empty the water in the concrete works, as there is then the suspicion that the switch was operated incorrectly and it is therefore not clear how much water is in the mixing drum and how much water is used to clean the slide or the outside of the mixing drum was used.
  • the water meter is preferably heatable so that reliable values can be obtained even in winter, i.e. the temperature change has little or no effect due to the heating.
  • a flow rate control valve is preferably provided upstream or downstream of the water meter. Electronic flow meters only work precisely within a certain range of flow, and the flow rate control valve ensures that this range is not left. In the application according to the invention, a flow rate of 130 l / min is typical.
  • a consistency measuring device is attached in the mixing drum.
  • a suitable consistency measuring device is in the DE 102012017445 A described. It contains a rod that protrudes into the interior of the mixing drum normal to the wall of the mixing drum and is bent by the concrete. The forces that occur as a result of the bending load can be measured, and this allows conclusions to be drawn about the consistency of the concrete, as is described in detail in the cited document. This is much more precise than if one draws conclusions on the consistency based on the torque required for the drive, as is the case with the already mentioned DE 3310570 A is known.
  • the consistency of the concrete is measured after the next filling and compared with a target value in order to detect inadmissible admixture of water.
  • the present invention is explained in more detail with the aid of the accompanying drawing.
  • the single drawing shows a basic sketch of a transport concrete mixer according to the invention.
  • the water tank 12 which is under excess pressure, can deliver water via a line 15.
  • this line 15 there is a flow rate control valve 13, which ensures a flow rate of approximately 130 l / min, and a water meter 14.
  • the water meter 14 can be heated by a heater 24.
  • the line 15 branches off into a water line 16 which leads directly into the interior of the mixing drum 11.
  • a valve 18 is provided in this water line 16.
  • Another line 17 leads to a water hose 21, at the end of which a nozzle 22 is provided.
  • a valve 19 is provided which can be opened and closed by means of a switch 20.
  • this switch 20 has two “on” positions, namely an “outside” position for cleaning the chute 23 and the mixing drum 11 outside and an “inside” position for cleaning the mixing drum 11 inside.
  • the water meter 14 not only takes into account whether the valve 18 or the valve 19 is open, but also what position the switch 20 is in. In this way, it is possible to determine precisely how much water is in the mixing drum 11 after the mixing drum 11 has been emptied as a result of the cleaning.
  • the amount detected by the water meter 14 is set to zero when the mixing drum 11 rotates at least four times in the opposite direction. As a result, the entire water content is released (so-called residual emptying). Normally, the remaining emptying takes place on the premises of the concrete supplier and is therefore known to him; however, it is conceivable that the construction site will empty the system completely, and in this case too the correct amount of water (namely zero) is reported.
  • the present invention not only the amount of water added before emptying can be recorded (regardless of whether the water is added directly via the water line 16 or via the water hose 21), but also the amount of water that is stored in the mixing drum 11 after emptying as a result of cleaning remains. In this way, this amount of water can be taken into account the next time it is loaded, so that the water content is precisely set for this too, without the vehicle having to be completely emptied beforehand.
  • the residue may only be emptied in special recycling plants, and these have only a limited capacity. It is therefore an advantage if you can keep the number of residue emptying low.
  • the driver can be equipped with a tablet with which they can log into the headquarters and read out the values relating to their vehicle. This means that the drivers are always provided with the latest values.
  • a consistency measuring device 29 in the form of a rod, which protrudes normal to the wall of the mixing drum 11 into the interior of the mixing drum 11 and is bent by the concrete.
  • the forces caused by the bending load are measured by strain gauges.
  • the consistency meter includes also an acceleration sensor, so that the angular position of the drum is recognized. In this way you can record the speed, since the angular position is repeated after exactly one rotation.
  • An evaluation circuit which is preferably attached to the outside of the mixing drum 11, can now calculate the consistency from the speed and the measured values of the strain gauges.
  • the measured values are transmitted wirelessly to the evaluation and transmission unit, which then transmits them to the control center together with other measured values (water quantities, GPS position, temperature).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Claims (6)

  1. Camion malaxeur de béton, pourvu d'une cuve de mélange (11) pouvant être entraînée en rotation, d'une goulotte (23) destinée à décharger le béton, d'un réservoir d'eau (12), d'un compteur d'eau (14), d'une conduite d'eau (16) menant vers la cuve de mélange (11) ainsi que d'un tuyau d'eau (21) destiné à nettoyer la cuve de mélange (11) et la goulotte (23), le compteur d'eau (14) permettant de mesurer et comptabiliser, de manière indépendante, l'eau qui est introduite dans la cuve de mélange (11) à travers la conduite d'eau (16) et l'eau qui est prélevée à travers le tuyau d'eau (21), et un interrupteur (20) permettant d'activer la distribution d'eau à travers de le tuyau d'eau (21), caractérisé en ce que en ce que l'interrupteur (20) permettant d'activer la distribution d'eau à travers de le tuyau d'eau (21) peut adopter deux positions de « marche », à savoir une qui est destinée à nettoyer l'intérieur de la cuve et une qui est destinée à nettoyer la goulotte et à nettoyer l'extérieur de la cuve, et qu'une fois la cuve de mélange (11) vidée, on peut soit comptabiliser uniquement la distribution d'eau à travers le tuyau d'eau (21) destinée à nettoyer l'intérieur de la cuve soit comptabiliser également la distribution d'eau à travers le tuyau d'eau (21) destinée à nettoyer la goulotte et à nettoyer l'extérieur de la cuve, les valeurs correspondantes pouvant être transmises à une centrale.
  2. Camion malaxeur de béton selon la revendication 1, caractérisé en ce que le compteur d'eau (14) peut être chauffé.
  3. Camion malaxeur de béton selon les revendications 1 ou 2, caractérisé en ce qu'une valve (13) permettant de régler le débit est disposée en amont ou en aval du compteur d'eau (14).
  4. Camion malaxeur de béton selon l'une des revendications 1 à 3, caractérisé en ce qu'un dispositif de mesure de la consistance (29) est disposé dans la cuve de mélange (11).
  5. Procédé de mise en œuvre d'un camion malaxeur de béton selon les revendications 1 à 4, dans lequel on procède, une fois la cuve de mélange (11) vidée, soit à la comptabilisation uniquement de la distribution d'eau à travers le tuyau d'eau (21) destinée à nettoyer l'intérieur de la cuve soit à la comptabilisation également de la distribution d'eau à travers le tuyau d'eau (21) destinée à nettoyer la goulotte et à nettoyer l'extérieur de la cuve, pour transmettre les valeurs correspondantes à une centrale, le conducteur recevant suite à son retour du chantier une indication lui demandant
    a) dans certains cas, d'évacuer les résidus, les quantités évacuées étant ensuite comparées avec les valeurs transmises, et
    b) en absence d'une telle demande, prise en compte lors du prochain remplissage, la quantité d'eau contenue dans la cuve de mélange (11).
  6. Procédé selon la revendication 5 permettant de mettre en œuvre un camion malaxeur de béton selon la revendication 4, caractérisé en ce que, suite au prochain remplissage, la consistance du béton est mesurée et comparée avec une valeur de consigne, afin de détecter un ajout d'eau nonautorisé.
EP18176299.8A 2017-06-06 2018-06-06 Malaxeur de béton transporteur et son procédé de fonctionnement Active EP3412369B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50472/2017A AT520034B1 (de) 2017-06-06 2017-06-06 Transportbetonmischer

Publications (2)

Publication Number Publication Date
EP3412369A1 EP3412369A1 (fr) 2018-12-12
EP3412369B1 true EP3412369B1 (fr) 2021-10-06

Family

ID=62562996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18176299.8A Active EP3412369B1 (fr) 2017-06-06 2018-06-06 Malaxeur de béton transporteur et son procédé de fonctionnement

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EP (1) EP3412369B1 (fr)
AT (1) AT520034B1 (fr)
HU (1) HUE057824T2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112549300B (zh) * 2020-11-23 2022-04-19 富强科技股份有限公司 一种管桩生产余浆回收利用装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6412196A (en) * 1987-07-01 1989-01-17 Harman Co Ltd Attachment construction of antifreezing heat for water pipeline
FR2751911B1 (fr) * 1996-07-31 2000-06-16 Mbt Holding Ag Systeme de controle et de distribution pour malaxeur a beton et procede d'utilisation
GB2388055B (en) * 2002-03-02 2004-06-16 John H Gingell Concrete mixers
US8418702B2 (en) * 2008-10-31 2013-04-16 Shadley F. Brand Ready mix truck wash
DE102012017445B4 (de) * 2012-09-04 2015-03-05 Franz Ludwig Gesellschaft für Mess- und Regeltechnik mbH System und Verfahren zur Messung der Feuchte und der Konsistenz von Mischgut eines Trommelmischers
WO2016033685A1 (fr) * 2014-09-05 2016-03-10 I.B.B. Rhéologie Inc. Système et procédé pour déterminer l'état d'une soupape
NO2744831T3 (fr) * 2015-03-30 2018-05-05
WO2017044913A1 (fr) * 2015-09-11 2017-03-16 Beck Manufacturing International, Inc. Système de nettoyage de camion malaxeur

Also Published As

Publication number Publication date
AT520034B1 (de) 2022-09-15
AT520034A1 (de) 2018-12-15
HUE057824T2 (hu) 2022-06-28
EP3412369A1 (fr) 2018-12-12

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