EP1504810B1 - Apparatus for cleaning a mixing drum - Google Patents

Apparatus for cleaning a mixing drum Download PDF

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Publication number
EP1504810B1
EP1504810B1 EP04018237A EP04018237A EP1504810B1 EP 1504810 B1 EP1504810 B1 EP 1504810B1 EP 04018237 A EP04018237 A EP 04018237A EP 04018237 A EP04018237 A EP 04018237A EP 1504810 B1 EP1504810 B1 EP 1504810B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
spray
concrete
region
mixing drum
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.)
Not-in-force
Application number
EP04018237A
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German (de)
French (fr)
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EP1504810A1 (en
Inventor
Valentin Borozan
Josef Schlusche
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.)
Geco GmbH
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Geco GmbH
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Filing date
Publication date
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Publication of EP1504810A1 publication Critical patent/EP1504810A1/en
Application granted granted Critical
Publication of EP1504810B1 publication Critical patent/EP1504810B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
    • B01F35/1452—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids
    • B01F35/1453—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids by means of jets of fluid, e.g. air
    • 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

Definitions

  • DE 31 27 858 A1 discloses a water supply and purification system for a concrete mixer.
  • Concrete compulsory mixers typically include a mixing tank, as well as feed, cement, water and one or more vents. Mixing water is supplied under a pressure between 4 and 6 bar via spray nozzles to the mixing vessel. The spray nozzles are arranged so that they clean the inside surfaces of the mixing container and the stirring tools and at the same time form a water curtain. The water curtain prevents the escape of dust and cement through the inlet opening and vents.
  • a stationary concrete compulsory mixer is known, to which a high-pressure cleaning device is assigned.
  • the high-pressure cleaning device By means of the high-pressure cleaning device, concrete adhering to the stirring tools or to the inner wall of the container is sprayed with water jets.
  • the high pressure cleaning device is at Press between 100 and 150 bar operated.
  • the spray heads of the cleaning device are pivotable within the mixing container by an angle of more than 180 °. For this purpose, the spray heads are accommodated on a pivotably arranged within the mixing container pivot arm.
  • the concrete compulsory mixers known from DE 31 27 858 A1 and EP 0 698 101 A1 are generally received stationarily in concrete treatment plants.
  • the concrete is mixed according to the relevant regulations regarding composition and the addition of additives and then discharged into the mixing drums of ready-mixed concrete vehicles, which generally go under transfer funnels of concrete compulsory mixers and filled there with ready-mixed concrete.
  • the device comprises a lance-shaped device whose front end is adapted for insertion into a mixing drum through the open end thereof.
  • the lance-shaped insertion tube is received on a holding device.
  • a nozzle is received through which high pressure fluid can be sprayed at least against the insides of the drum so that concrete deposited on the inside of the mixing drum can be removed.
  • WO 03/061925 A relates to a method and a device for removing concrete residues from mixing drums.
  • a concrete mixer vehicle is moved on a cleaning station to a plurality of spray heads having lance-shaped cleaning device.
  • the lance-shaped cleaning device is received on a raised pedestal and formed telescopically in the interior of the mixer drum of Transponbetonfah Wegs retractable.
  • US 5,244,498 relates to a cleaning lance, which is movable in the horizontal direction and with which the interior of a truck mixer drum can be cleaned.
  • An operator handles the lance-shaped cleaning device and manually introduces it into the interior of a truck mixer drum.
  • the operator stands for cleaning the interior of the truck mixer drum on a pedestal.
  • US 5,695,280 relates to a reprocessing plant for concrete residues.
  • the reprocessing plant recycles unused concrete residues at the end of a production day.
  • the fully automated system comprises a tower-shaped unit where concrete remains are collected in troughs and sent to the reprocessing process.
  • US 3,786,823 relates to a car wash. From spray nozzles of a horizontally extending arm as well as spray nozzles of spray arms, the exterior of a truck is cleaned.
  • the nozzles are designed to be movable, which allows the sides, back and front of the truck to be cleaned externally.
  • the spray arms can be movably received on a carriage, which can be moved in a roof surface of the integrated from US 3,786,823 guide rail.
  • Ready-mixed concrete vehicles in which mixing drums ready-mixed concrete is transported, are today brought into position for cleaning.
  • the operator To clean the outlet and the inlet area of the truck mixer drum, the operator is below the outlet chute and / or he climbs a vertically mounted ladder, which is located on the ready-mixed concrete vehicle. Occasionally a cleaning platform is available to facilitate this work.
  • the spraying and cleaning of forklift trucks takes place via a hand-operated water lance, which is manually guided by operators to spray off the concrete residue and dirt caking. During this time the operator stands in the water mist, which is loaded with microparticles, which originate from the additives admixed with the concrete.
  • the spraying of protective agents which are usually used to prevent excessive caking to the outflow and inlet area in the truck mixer drum, also produces a spray that is loaded with microparticles, which inhales the operator.
  • a method and a device for the automatic cleaning of a truck mixer drum, in particular its filling and discharge area are provided.
  • the filling and the discharge area on the inside and on the outside of dirt or concrete residues can be cleaned.
  • an ergonomic cleaning of these areas of dirt or concrete residues can be achieved by cleaning the truck mixer drum on the inside and on the outside, in particular of the filling and outlet areas, so that the time periods previously required for cleaning these areas are considerably shortened.
  • the inventively proposed cleaning method of the inside and outside of the inlet and the outlet region of a truck mixer drum is preferably carried out in cleaning chambers, in which the transport concrete vehicle enters with its rear side.
  • spray heads can be integrated in the rear wall, in the two lateral boundary walls and within the roof of the cleaning chamber.
  • the spray heads are connected via a water supply or with a water pressure via a high-pressure water device, wherein the pressure via the high-pressure device with respect to the roof side, back wall side and side wall side arranged spray / spray heads can be variably controlled.
  • a stationary frame structure may be provided, to which rigid side arms are fastened.
  • the two frame columns of the rigid frame construction can be connected to one another with a cross member, on which in turn a central arm extending in the direction of the truck mixer drum can be accommodated with spray / spray heads.
  • the ready-mixed concrete vehicle enters the frame structure with the open end of its truck mixer drum, with the arms received on the frame construction pressurized water can be directed both to the inside of the inlet area and the outlet area as well as to the entire outside of the rear area of the truck mixer drum spray nozzle. For particularly stubborn dirt or residual concrete caking can be done on the controllable high pressure targeted strengthening of emerging from the spray / spray heads water jets.
  • a frame construction in the cleaning chamber into which the ready-mixed concrete vehicle enters with a rear side, can be accommodated, on which articulated arms movable in the vertical direction are accommodated.
  • the articulated arms are movably mounted on rails in horizontal and vertical direction and are moved by integrated in the frame structure drives. These can be designed as electric drives or pneumatic drives.
  • the articulated arms may have a first Gelenkarmabêt and a second Gelenkarmabexcellent.
  • the second Gelenkarmabwolves is connected by a hinge point with the first Gelenkarmabwolves and carries a number of spray / spray heads, which can be pivoted in both vertical and horizontal direction.
  • the cleaning chambers surrounding the rear end of the ready-mixed concrete vehicle encapsulate the environment from contamination, e.g. against the mist produced during the purification of dissolved particles containing water;
  • the floors of the cleaning chambers are designed as inlet plates, via which the rinsed concrete or the dirt of a central residual concrete washing plant and / or a collecting basin can be supplied.
  • the cleaning chambers can also be formed adjacent to each other in individual sections.
  • a series of spray / spray heads can be attached to the cleaning chambers, which completely transfers the truck mixer drum of a ready-mixed concrete vehicle, so that the entire exterior of a truck mixer drum of a ready-mixed concrete vehicle can be cleaned with such a modified cleaning chamber.
  • the cleaning device may be associated with an automatable metering device for cleaning in particular the inside and the outside of the truck mixer drum of the ready-mixed concrete vehicle.
  • This automated metering device comprises at least one container and a pump.
  • the container is a means for pre- and post-treatment of the inside of the inlet or the outlet region of the truck mixer drum assigned. This agent prevents the premature caking of concrete on the insides of the inlet and outlet area of the truck mixer drum.
  • the automated cleaning method for cleaning in particular the inside and the outside of an inlet or outlet region of a truck mixer drum is coordinated via a controller.
  • the controller the dimensions of the end area of a truck mixer drum of common types of ready-mix concrete vehicles can be stored.
  • the control device for example a PLC control system
  • the travel paths of the articulated arms can be stored in the vertical direction, in the horizontal direction and the pivoting range of the spray / spray heads pivotable on the articulated arms.
  • the spray or spray heads also particularly stubborn soiling areas of the inside or outside of the inlet or outlet area of the truck mixer drum can be stored.
  • the controller can be used to optimize water consumption as well as additive quantities. If necessary, the pressure of the local water supply network can be adjusted via the controller or the water pressure available at an intermediate high-pressure device can be regulated.
  • FIG. 1 shows a ready-mixed concrete vehicle which has been retracted into a rear area in a cleaning chamber, wherein the two boundary walls and spray / spray heads are integrated in the rear wall chamber.
  • a truck mixer drum 2 On a ready-mixed concrete vehicle 1 a truck mixer drum 2 is added.
  • the truck mixer drum is filled with fresh concrete, which is usually turned on in a concrete mixer. This is placed in the truck drum 2 via a filling area 3, which is designed as a hopper 5.
  • a filling area 3 Below the filling area 3 there is an outlet area 4, which has a discharge funnel 29 and a laterally pivotable and also in its outlet height adjustable discharge chute 6. Inner sides 7 of the inlet funnel 5, the outlet funnel 29 and the outlet chute 6 come into contact with the concrete to be filled; this sticks to the insides 7.
  • the outside 8 of the filling area 3 and the outlet area 4 is badly contaminated on site, just think of concrete vats carried with cranes, from which the fresh concrete splashes on the truck mixer drum when the cap is leaking.
  • the cleaning method proposed according to the invention is carried out within a cleaning chamber 9 which has a first protective wall 10, a rear wall 11, a chamber roof 12 and a second protective wall 13; further at a cleaning station with boundary walls, ie 1st protective wall 10, rear wall 11 and 2nd protective wall 13.
  • the distribution lines in the cleaning chamber 9 are connected to the local water supply 53; if there is insufficient pressure, the connection of the local water supply 58 to a high-pressure water device 54 and then to the Distributor lines in the cleaning chamber 9.
  • the bottom of the cleaning chamber 9 is formed by inlet plates 18, via which the flushed impurities can be discharged into a basin 19 to a Restbetonauswaschstrom not shown in Figure 1.
  • the rinsed impurities from the individual area 3 are discharged via the outlet chute 6.
  • the first boundary wall 10 and the second boundary wall 13 of the cleaning chamber 9 integrated Dachsprühkexcellent 14 and integrated Towandsprühkexcellent 15 are embedded.
  • Both the outer side 8 of the filling area 3 and the outlet area 4 and the inner sides 7 of the filling funnel 5, the outlet funnel 29 and the outlet chute 6 are sprayed with pressurized water jet via water jets 16 emerging from these.
  • the water mist forming in the spray area 17, which may be contaminated by dissolved additives of the additives added to the concrete, essentially remains in the interior of the cleaning chamber 9.
  • the roof spray heads 14 integrated in the chamber roof 12 are preferably arranged such that the inner side 7, in particular of the filling area 3, ie the inlet funnel 5 can be cleaned.
  • the registered spray leaves the cleaning chamber 9.
  • the water jets 16 emerging from the spray / spray heads 15 integrated into the side walls and from the spray / spray heads of the rear wall 11 and from the spray / spray heads in the roof surface 14 can be regulated via an adjustable control valve 59 with respect to their pressure between freely preselectable pressure levels become.
  • water jets 16 can be directed in terms of their pressure targeted at particularly stubborn caking of concrete.
  • a cleaning chamber 9 emerges into which the ready-mixed concrete vehicle 1 has retracted to the rear end of the truck mixer drum 2.
  • cleaning chamber 9 can be arranged side by side several cleaning chambers 9, which are separated from each other by individual walls 10 and which are all connected via individual inlet plates 18 with a Restbetonauswaschstrom 43 not shown in Figure 2.
  • the floors of the cleaning chambers 9 are all designed with inlet plates 18, via which the rinsed waste water and the residual concrete dissolved therein can also be passed through the casserole 6 in a catch basin 19 and optionally in a Restbetonauswaschstrom 43.
  • the frame structure 20 comprises two frame columns 21, which are interconnected by a frame cross member 22, 27. At each of the frame columns 21, a rigid articulated arm 24 and 25 is received. In addition, the frame cross member 22, which rests on the upper end of the frame columns 21 on this, a third rigid arm 26.
  • the third rigid arm 26 is oriented so that the spray / spray heads 23 formed in it reach the inside 7 of the hopper 5 and the water jets 16 emerging from these spray / spray heads 23 are able to remove caking and soiling from the inside 7.
  • the side arms 24, 25 received on the rigid frame construction 20 are spaced apart so far that common types of ready-mixed concrete vehicles 1 can partially enter with their rear end into the cleaning chambers 9 as shown in FIG. 2, without the side surfaces being damaged.
  • a plurality of spray / spray heads 23 are preferably received whose water jets 16 cover the outside 8 of both the inlet region 3, i. the inlet funnel 5 and the outlet area 4, i. reach the outlet funnel 29 and the outlet chute 6. Due to the encapsulation of the rigid frame construction. 20 within the cleaning chamber 9 further cleaning chambers 9 are protected against contamination by water mist; As shown in FIG. 2, the further cleaning chambers 9 can also be used to clean the rear area of truck mixer drums 2 of ready-mixed concrete vehicles 1.
  • Each of the cleaning chambers 9 is provided with inlet plates 18 in the bottom surface. The splash and the residual concrete leave the cleaning chamber. 9
  • a plurality of rigid side arms can also be accommodated on the rigid frame structure 20 laterally one above the other.
  • the cross member 22, 27 of the rigid frame structure 20 also accommodate a plurality of the end of the truck drum 2 partially superior arms 26.
  • the spray / spray heads 23 accommodated in the rigid side arms 24, 25 or in the central arm 26 can be acted upon by adjustable valves 59 with different water pressures, so that particularly heavily soiled areas on the inside 7 of the inlet area 3 and the inside of the outlet chute 6 and the outlet funnel 29 persistently adhering Betonanbackept are removable.
  • the spraying / spraying heads arranged in the rigid side arms 24, 25 as well as in the rigid central arm 26 are identified by the reference numeral 28, which on the Cross members 22, 27 of the rigid frame structure 20 mounted spray heads are indicated by reference numeral 23.
  • the water supply to the spray heads 28 and 23 takes place through the local water supply 53, 58 or via the high-pressure device 54, wherein the pressure can be regulated by control valves 59. At the control valve 59, the pressure of the water jet 16 emerging from the spray / spray heads 23, 28 can be adjusted, so that stubborn caking on the inner sides 7 or the outer sides 8 of the filling area 3 and the outlet area 4 can be treated with higher water pressures.
  • FIG. 3 shows a further embodiment variant of a cleaning device for cleaning the inner and outer sides of the rear area of a truck mixer drum of a ready-mixed concrete vehicle.
  • a ready-mixed concrete vehicle 1 is retracted with the rear portion of its truck mixer drum 2.
  • the cleaning chamber 9 is bounded by a first lateral boundary wall 10, a second lateral boundary wall 13, a rear wall 11 and the chamber roof 12.
  • the bottom surface of the cleaning chamber 9 is designed as a feed plate 18.
  • a plurality of cleaning chambers 9 separated from each other by the second walls 10 may be provided, which are encapsulated with one another by the chamber roof 12 or the side walls 10, 13. Cleaning water and residual concrete leave the cleaning chambers 9 via the inlet plates 18.
  • a frame 20 is accommodated within the cleaning chamber 9, into which the ready-mixed concrete vehicle 1 has retracted with its rear area, on which articulated arms 31 and 32 are moveably accommodated.
  • At least one drive 30 is provided on the frame 20.
  • the high-pressure device 54 may be arranged outside the water purification chamber 9. Via the drives 30, the articulated arms 31, 32 can be moved in the vertical direction, ie perpendicular to the plane of the drawing according to FIG.
  • the articulated arms 31, 32 each have a hinge point 33, on which a first articulated arm portion 31 and a second articulated arm portion 35 are pivotally coupled together.
  • the use of drives 30, a method of spraying / spraying devices in the horizontal direction via a cross member 22 can be realized.
  • a plurality of spray / spray heads 23 are accommodated on the first articulated arm sections 34, said spraying heads 23 being accommodated on the outside 8 of the filling and the outlet region 3, 4 are directed.
  • the spray / spray heads 23 received on the articulated arm sections 34 and 35 can be adjusted to the contour of the inlet and outlet areas 3, 4 of the truck mixer drum 2, so that a particularly effective cleaning by means of dense feeding of the Spray heads to the outside to be cleaned 8 is ensured.
  • the spray / spray heads 23 accommodated at the ends of the first articulated arm sections 34 can be designed to be pivotable within a pivoting region 41 in a horizontal plane.
  • the frame 20 is associated with an external high-pressure water device 54, which may be arranged outside the cleaning chamber 9.
  • the high-pressure device 54 which contains a pressure control, the water pressure, the water jets 16 emerging from the spray / spray heads 23 can be adjusted, i. increase or decrease.
  • FIG. 4 is a side view of a ready-mixed concrete vehicle, the rear part of which is retracted into a cleaning chamber.
  • the rear area of the truck mixer drum 2 of the ready-mixed concrete vehicle 1 is enclosed by the side walls 10, 13 of the rear wall 11 and the chamber roof 12 of the cleaning chamber 9.
  • the bottom of the cleaning chamber 9 is formed by inlet plates 18 to dissipate the rinse water.
  • one of the frame columns 21 of the frame 20 is shown, on which a running rail 36 is arranged.
  • the second articulated arm 32 in the vertical direction 42 is movable.
  • the second articulated arm 32 comprises the first articulated arm section 34 and the second articulated arm section 35, which are connected to one another at a joint 33.
  • the first articulated arm section 34 has a pivotable spray / spray head 37, which can be pivoted in the vertical direction.
  • the articulated arms 31, 32 are movable in the vertical direction, also takes place via the drives a delivery of the Fahrmischertrommelende assigning spray / spray heads 23 and the buckling of the articulated arms 31, 32 at its hinge point 33 for optimal positioning
  • a feed table 44 of the Restbetonauswaschstrom 43 upon pivoting of the articulated arms 31, 32 are cleaned by 180 ° by high-pressure jets 16 of the spraying / spraying heads.
  • integrated spray / spray heads 14 are received in the chamber roof 12 of the cleaning chamber 9, with which in particular the inside 7 of the filling area 3 of the truck mixer drum 2 can be cleaned.
  • the cleaning chambers 9 is associated with a metering device 50, which has a first container 51 and a second container 52 for receiving e.g. a separation medium may have.
  • the metering device which may have at least one or also the two containers 51, 52 shown in FIG. 4, is provided with a pump 53.
  • the metering device 50 is a line to the spray / spray heads 14, 23 is provided. About this is applied to the concrete coming into contact surfaces of the inner sides 6 and the outer sides 8 of the inlet funnel 5, the outlet funnel 29 and the inside of the outlet chute 6 to reduce premature tackling of the concrete and after emptying the truck drum 2 remaining residual concrete residues.
  • the cleaning chamber 9 shown in FIG. 4 can have, as an extension, a holding device 40 which covers the area of the truck mixer drum 2 which has not been retracted into the cleaning chamber 9.
  • a holding device 40 which covers the area of the truck mixer drum 2 which has not been retracted into the cleaning chamber 9.
  • spraying line 45 attached to the lower side of holding device 40 and spraying / spraying heads 23 arranged thereon, the entire outer peripheral surface can be cleaned by turning the truck mixer drum 2.
  • the frame cleaning device comprising movable articulated arms 31, 32 shown in FIGS. 3 and 4 can be controlled via a control device 55.
  • control device 55 can be both horizontal and vertical movements 42 of the articulated arms 31, 32 via the actuators 30 (possibly also on the cross member 22), control, as well as the pressure level, which is generated via the high-pressure device 54, vary.
  • the water pressure levels which are applied to the respective spraying / spraying devices 14, 23 arranged in the cleaning chamber 9 can be freely preselected.
  • the control device which comprises a read-only memory 56
  • the water pressure of the water jets 16 exiting at the spray / spray heads 14, 23 can be adjusted and, if necessary, increased with particularly stubborn residual concrete caking, so that they can be completely rinsed off.
  • the read memory 56 of the control device 55 the dimensions in terms of height and width more common Transport concrete vehicles with respect to the open end of the mixing drum 2 to be stored.
  • the travel paths 42 of the articulated arms 31, 32, the pivoting movements 37, 41 of the spray / spray heads 23 and the buckling of the articulated arms 31, 32 at the hinge point 33 for adaptation to the outer contour of the area to be cleaned, controlled.
  • FIG. 4 a shows an embodiment variant in which the cleaning chamber 9 is assigned a residual concrete washing installation 43, which has a scoop wheel 46.
  • the scoop wheel 46 of the waste concrete washing plant 43 By means of the scoop wheel 46 of the waste concrete washing plant 43, a catch basin arranged below zero level can advantageously be scooped up, into which the spray water or the washed-off residual concrete can be transferred out of the cleaning area 9.
  • FIG. 4b shows a residual concrete washing installation 43 arranged below the floor level, in whose feed table 44 spray water or residual concrete flowing off via the inlet plates 18 can be filled.
  • the rinsing water leaves the cleaning chamber 9 with the concrete residues and particles.
  • the rinsing water discharge from the cleaning chamber 9 is realized in accordance with local conditions.
  • the rinsing water can be drained off via inlet plates 18 or an optional farm gradient, wherein the rinsing water can be fed into a basin 19 shown in FIG. 1 via the inlet plates 18 or the outlet tube 6.
  • the flushing water discharge can take place according to the variant shown in FIG. 4 in a residual concrete washing installation 43.
  • This flushes the rinse water into the Restbetonauswaschstrom 43 and an optionally existing basin 19.
  • the rinse water through the inlet plates 18 and the outlet chute 6 to Restbetonauswaschstrom 43 or whose feed table 44 passed.
  • the inflow into the tank 19 can be omitted.
  • the residual concrete washing installation 43 can be placed below zero level. Then the Spüliganabtechnisch on the outlet chute 6 and the inlet plates 18 without the use of a Receiving basin 19 are introduced directly into the Restbetonauswaschstrom 43, which requires no bucket 46 (see Figure 4a).
  • the cleaning device proposed according to the invention may be followed by a unit, a scoop wheel 46, the scrubber 43 or a feed table or basin arrangement 19, 44, this unit comprising the rinse water with residual concrete and components and Particles can be fed directly through the outlet chute 6 and the inlet plates 18 of the cleaning chamber 9.

Abstract

A delivery truck (1) for ready-mix concrete has a mixer drum (2) with a filling inlet zone (3, 5) and an outlet zone (4, 6). The mixer drum is cleaned as required by a stationary cleaning (17) station (9) surrounded by screens (10-13). The drum is cleaned internally (7) and externally (9) by an array of cleaning jets (14, 15, 23, 28, 37).

Description

Technisches GebietTechnical area

Bei Transportbetonfahrzeugen, welche Mischtrommeln aufweisen, ist es nach einiger Betriebszeit erforderlich, die Mischtrommel sowohl im Inneren als auch auf der Außenseite zu reinigen. Beim Einfüllen des Betons in die Fahrmischertrommeln kommt es außen und innen im Einlaufbereich, d.h. im Bereich des Einfülltrichters zu Verschmutzungen bzw. Betonanbackungen. Beim Entleeren der Fahrmischertrommel verbleiben aufgrund des zähfließenden Betongemisches Reste des Betons an der Innen- und Außenseite des Auslaufbereiches haften. Zwar wird die Auslaufschütte nach Entleeren der Fahrmischertrommel manuell gereinigt, jedoch verbleiben Reste des Betons haften.In ready-mixed concrete vehicles, which have mixing drums, it is necessary after some operating time to clean the mixing drum both inside and on the outside. When the concrete is poured into the truck mixer drums, it is outside and inside in the inlet area, i. in the area of the hopper for contamination or concrete caking. When emptying the truck mixer drum remains of the concrete adhere to the inside and outside of the outlet area due to the viscous concrete mixture. Although the discharge chute is cleaned manually after emptying the truck mixer drum, remaining remains of the concrete adhere.

Stand der TechnikState of the art

Aus DE 31 27 858 A1 geht ein Wasserzufuhr- und Reinigungssystem für einen Betonzwangsmischer hervor. Betonzwangsmischer umfassen in der Regel einen Mischbehälter sowie Einläufe für Zuschlagsstoffe, Zement, Wasser sowie eine oder mehrere Entlüftungsöffnungen. Anmachwasser wird unter einem Druck zwischen 4 und 6 bar über Sprühdüsen dem Mischbehälter zugeführt. Die Sprühdüsen sind so angeordnet, dass sie die Innenflächen des Mischbehälters und die Rührwerkzeuge reinigen und gleichzeitig einen Wasserschleier bilden. Mittels des Wasserschleiers wird ein Entweichen von Staub und Zement durch Zulauföffnung und Entlüftungsöffnungen verhindert.DE 31 27 858 A1 discloses a water supply and purification system for a concrete mixer. Concrete compulsory mixers typically include a mixing tank, as well as feed, cement, water and one or more vents. Mixing water is supplied under a pressure between 4 and 6 bar via spray nozzles to the mixing vessel. The spray nozzles are arranged so that they clean the inside surfaces of the mixing container and the stirring tools and at the same time form a water curtain. The water curtain prevents the escape of dust and cement through the inlet opening and vents.

Aus EP 0 608 191 A1 ist ein stationärer Betonzwangsmischer bekannt, dem eine Hochdruckreinigungsvorrichtung zugeordnet ist. Mittels der Hochdruckreinigungsvorrichtung wird an den Rührwerkzeugen bzw. an der Behälterinnenwand anhaftender Beton mit Wasserstrahlen abgespritzt. Die Hochdruckreinigungseinrichtung wird bei Drücken zwischen 100 und 150 bar betrieben. Die Sprühköpfe der Reinigungseinrichtung sind innerhalb des Mischbehälters um einen Winkel von mehr als 180° verschwenkbar. Dazu sind die Sprühköpfe an einem verdrehbar innerhalb des Mischbehälters angeordneten Schwenkarm aufgenommen.From EP 0 608 191 A1 a stationary concrete compulsory mixer is known, to which a high-pressure cleaning device is assigned. By means of the high-pressure cleaning device, concrete adhering to the stirring tools or to the inner wall of the container is sprayed with water jets. The high pressure cleaning device is at Press between 100 and 150 bar operated. The spray heads of the cleaning device are pivotable within the mixing container by an angle of more than 180 °. For this purpose, the spray heads are accommodated on a pivotably arranged within the mixing container pivot arm.

Die aus DE 31 27 858 A1 und EP 0 698 101 A1 bekannten Betonzwangsmischer sind in der Regel stationär in Betonaufbereitungsanlagen aufgenommen. Innerhalb der Betonzwangsmischer wird der Beton entsprechend den einschlägigen Vorschriften hinsichtlich Zusammensetzung und der Zugabe von Additiven gemischt und anschließend in die Mischtrommeln von Transportbetonfahrzeugen abgegeben, die im Allgemeinen unter Übergabetrichter der Betonzwangsmischer fahren und dort mit Transportbeton befüllt werden.The concrete compulsory mixers known from DE 31 27 858 A1 and EP 0 698 101 A1 are generally received stationarily in concrete treatment plants. Within the concrete compulsory mixers, the concrete is mixed according to the relevant regulations regarding composition and the addition of additives and then discharged into the mixing drums of ready-mixed concrete vehicles, which generally go under transfer funnels of concrete compulsory mixers and filled there with ready-mixed concrete.

Aus US 6,418,948 B1 ist eine Vorrichtung und ein Verfahren zur Entfernung von Beton von den Innenseiten einer Mischtrommel bekannt. Die Vorrichtung umfasst ein lanzenförmiges Gerät, dessen vorderes Ende zum Einführen in eine Mischtrommel durch deren offenes Ende geeignet ist. Das lanzenförmig ausgebildete Einführrohr ist an einer Haltevorrichtung aufgenommen. An dem der Mischtrommel zuweisenden Ende ist eine Düse aufgenommen, über welche unter hohem Druck stehendes Fluid zumindest gegen die Innenseiten der Trommel gesprüht werden kann, so dass Beton, der sich an der Innenseite der Mischtrommel angelagert hat, entfernt werden kann.From US 6,418,948 B1 an apparatus and a method for removing concrete from the insides of a mixing drum is known. The device comprises a lance-shaped device whose front end is adapted for insertion into a mixing drum through the open end thereof. The lance-shaped insertion tube is received on a holding device. At the end facing the mixing drum, a nozzle is received through which high pressure fluid can be sprayed at least against the insides of the drum so that concrete deposited on the inside of the mixing drum can be removed.

WO 03/061925 A bezieht sich auf ein Verfahren und eine Vorrichtung zur Entfernung von Betonrückständen aus Mischtrommeln. Ein Betonmischfahrzeug wird auf einem Reinigungsplatz an eine mehrere Sprühköpfe aufweisende, lanzenförmig ausgebildete Reinigungseinrichtung herangefahren. Die lanzenförmig ausgebildete Reinigungseinrichtung ist auf einem erhöhten Podest aufgenommen und teleskopartig in das Innere der Mischertrommel des Transponbetonfahzeugs einfahrbar ausgebildet.WO 03/061925 A relates to a method and a device for removing concrete residues from mixing drums. A concrete mixer vehicle is moved on a cleaning station to a plurality of spray heads having lance-shaped cleaning device. The lance-shaped cleaning device is received on a raised pedestal and formed telescopically in the interior of the mixer drum of Transponbetonfahzeugs retractable.

US 5,244,498 bezieht sich auf eine Reinigungslanze, die in horizontale Richtung bewegbar ist und mit der das Innere einer Fahrmischertrommel gereinigt werden kann. Eine Bedienungsperson handhabt die lanzenförmig ausgebildete Reinigungsvorrichtung und fuhrt diese manuell in das Innere einer Fahrmischertrommel ein. Der Bediener steht zur Reinigung des Inneren der Fahrmischertrommel auf einem Podest.US 5,244,498 relates to a cleaning lance, which is movable in the horizontal direction and with which the interior of a truck mixer drum can be cleaned. An operator handles the lance-shaped cleaning device and manually introduces it into the interior of a truck mixer drum. The operator stands for cleaning the interior of the truck mixer drum on a pedestal.

US 5,695,280 bezieht sich auf eine Wiederaufarbeitungsanlage für Betonreste. Mit der Wiederaufarbeitungsanlage werden am Ende eines Produktionstages nicht verbrauchte Betonreste wieder aufgearbeitet. Das vollautomatisierte System umfasst eine turmförmig ausgebildete Einheit, in der Betonreste in Trögen gesammelt werden und dem Wiederaufbereitungsprozess zugeführt werden.US 5,695,280 relates to a reprocessing plant for concrete residues. The reprocessing plant recycles unused concrete residues at the end of a production day. The fully automated system comprises a tower-shaped unit where concrete remains are collected in troughs and sent to the reprocessing process.

US 3,786,823 bezieht sich auf eine Waschanlage für Fahrzeuge. Aus Sprühdüsen eines horizontal verlaufenden Armes sowie aus Sprühdüsen von Sprüharmen wird der Außenbereich eines Lastkraftwagen gereinigt. Die Düsen sind beweglich ausgebildet, wodurch sich die Seitenflächen sowie Rückseite und Vorderseite des Lastwagens außen reinigen lassen. Die Sprüharme können bewegbar an einem Schlitten aufgenommen sein, der sich in einer Dachfläche der aus US 3,786,823 integrierten Führungsschiene verfahren lässt.US 3,786,823 relates to a car wash. From spray nozzles of a horizontally extending arm as well as spray nozzles of spray arms, the exterior of a truck is cleaned. The nozzles are designed to be movable, which allows the sides, back and front of the truck to be cleaned externally. The spray arms can be movably received on a carriage, which can be moved in a roof surface of the integrated from US 3,786,823 guide rail.

Transportbetonfahrzeuge, in deren Mischtrommeln Transportbeton transportiert wird, werden heute zur Reinigung in Position gebracht. Zur Reinigung des Auslauf- und des Einlaufbereichs der Fahrmischertrommel steht der Bediener unterhalb der Auslaufschütte und/oder er besteigt eine senkrecht angebrachte Leiter, welche sich am Transportbetonfahrzeug befindet. Mitunter steht eine Reinigungsbühne zur Verfügung, um diese Arbeiten zu erleichtern. Das Abspritzen und das Reinigen von Transportbetonfahrmischern erfolgt über eine handbediente Wasserlanze, die von Bedienern manuell geführt wird, um die Betonreste und Schmutzanbackungen abzuspritzen. Während dieser Zeit steht der Bediener im Wassernebel, welcher mit Mikropartikeln, die aus dem den Beton beigemischten Additiven herrühren, belastet ist. Das Aufsprühen von Schutzmitteln, welche in der Regel dazu dienen, ein zu starkes Anbacken an den Aus- und Einlaufbereich in der Fahrmischertrommel zu unterbinden, erzeugt ebenfalls einen Sprühnebel, der mit Mikropartikeln belastet ist, die der Bediener einatmet.Ready-mixed concrete vehicles, in which mixing drums ready-mixed concrete is transported, are today brought into position for cleaning. To clean the outlet and the inlet area of the truck mixer drum, the operator is below the outlet chute and / or he climbs a vertically mounted ladder, which is located on the ready-mixed concrete vehicle. Occasionally a cleaning platform is available to facilitate this work. The spraying and cleaning of forklift trucks takes place via a hand-operated water lance, which is manually guided by operators to spray off the concrete residue and dirt caking. During this time the operator stands in the water mist, which is loaded with microparticles, which originate from the additives admixed with the concrete. The spraying of protective agents, which are usually used to prevent excessive caking to the outflow and inlet area in the truck mixer drum, also produces a spray that is loaded with microparticles, which inhales the operator.

Da nur mit einer Wasserlanze gearbeitet werden kann, ist die Reinigungsprozedur recht zeitaufwendig. Hinzu kommt, dass in der näheren Umgebung keine weiteren Arbeiten ausgeführt werden können, da der Abspritzbereich des hinteren Bereichs der Fahrmischertrommel nicht durch Schutzbleche eingegrenzt ist. Diese Arbeiten sind unangenehm und nicht bedienerfreundlich und stellen einen unbefriedigenden Zustand dar.Since you can only work with a water lance, the cleaning procedure is quite time consuming. In addition, no further work can be carried out in the immediate vicinity, since the discharge area of the rear area of the truck mixer drum is not limited by protective plates. This work is uncomfortable and not user-friendly and represents an unsatisfactory condition.

Darstellung der ErfindungPresentation of the invention

Ausgehend vom skizzierten Stand der Technik und den oben skizzierten Nachteilen wird ein Verfahren und eine Vorrichtung zur automatischen Reinigung einer Fahrmischertrommel, insbesondere von deren Einfüll- und deren Auslaufbereich bereit gestellt. Durch das erfindungsgemäß vorgeschlagene Verfahren lassen sich insbesondere der Einfüll- und der Auslaufbereich auf der Innen- und auf der Außenseite von Schmutz bzw. von Betonresten säubern. Dies macht einerseits einen ansprechenderen optischen Eindruck; andererseits kann durch die Reinigung der Fahrmischertrommel an der Innen- und an der Außenseite insbesondere des Einfüll- und des Auslaufbereichs eine ergonomische Reinigung dieser Bereiche von Schmutz bzw. Betonresten erreicht werden, so dass die zur Reinigung dieser Bereiche bisher erforderlichen Zeitspannen erheblich verkürzt werden.Based on the outlined prior art and the disadvantages outlined above, a method and a device for the automatic cleaning of a truck mixer drum, in particular its filling and discharge area, are provided. By the method proposed according to the invention, in particular the filling and the discharge area on the inside and on the outside of dirt or concrete residues can be cleaned. On the one hand, this makes a more appealing visual impression; On the other hand, an ergonomic cleaning of these areas of dirt or concrete residues can be achieved by cleaning the truck mixer drum on the inside and on the outside, in particular of the filling and outlet areas, so that the time periods previously required for cleaning these areas are considerably shortened.

Das erfindungsgemäß vorgeschlagene Reinigungsverfahren von Innen- und Außenseite des Einlauf- bzw. des Auslaufbereichs einer Fahrmischertrommel erfolgt bevorzugt in Reinigungskammern, in welche das Transportbetonfahrzeug mit seiner Rückseite einfährt. In der Reinigungskammer können in deren Rückwand, in den beiden seitlichen Begrenzungswänden sowie innerhalb des Daches der Reinigungskammer Sprühköpfe integriert sein. Die Sprühköpfe werden über eine Wasserversorgung oder mit einem Wasserdruck über ein Wasserhochdruckgerät verbunden, wobei der Druck über das Hochdruckgerät in Bezug auf die dachseitig, rückwandseitig und seitenwandseitig angeordneten Sprüh-/Spritzköpfe variabel geregelt werden kann.The inventively proposed cleaning method of the inside and outside of the inlet and the outlet region of a truck mixer drum is preferably carried out in cleaning chambers, in which the transport concrete vehicle enters with its rear side. In the cleaning chamber spray heads can be integrated in the rear wall, in the two lateral boundary walls and within the roof of the cleaning chamber. The spray heads are connected via a water supply or with a water pressure via a high-pressure water device, wherein the pressure via the high-pressure device with respect to the roof side, back wall side and side wall side arranged spray / spray heads can be variably controlled.

Ferner kann - in einer weiteren Ausführungsvariante -innerhalb der Reinigungskammer, in welche das Transportbetonfahrzeug mit seiner Rückseite einfährt, eine stationäre Rahmenstruktur vorgesehen sein, an welcher starre Seitenarme befestigt sind. Die beiden Rahmensäulen der starren Rahmenkonstruktion können mit einem Querträger miteinander verbunden sein, an dem wiederum ein sich in Richtung der Fahrmischertrommel erstreckender Zentralarm mit Sprüh-/Spritzköpfen aufgenommen sein kann. Das Transportbetonfahrzeug fährt mit dem offenen Ende seiner Fahrmischertrommel in die Rahmenstruktur ein, wobei über die an der Rahmenkonstruktion aufgenommenen Armen vorgesehenen Sprüh-/Spritzköpfe unter Druck stehendes Wasser sowohl an die Innenseite des Einlaufbereichs und des Auslaufbereichs sowie auf die gesamte Außenseite des hinteren Bereichs der Fahrmischertrommel gerichtet werden kann. Bei besonders hartnäckigen Verschmutzungen bzw. Restbetonanbackungen kann über den regelbar Hochdruck eine gezielte Verstärkung der aus den Sprüh-/Spritzköpfen austretenden Wasserstrahlen erfolgen.Furthermore, in a further embodiment, inside the cleaning chamber into which the ready-mixed concrete vehicle enters with its rear side, a stationary frame structure may be provided, to which rigid side arms are fastened. The two frame columns of the rigid frame construction can be connected to one another with a cross member, on which in turn a central arm extending in the direction of the truck mixer drum can be accommodated with spray / spray heads. The ready-mixed concrete vehicle enters the frame structure with the open end of its truck mixer drum, with the arms received on the frame construction pressurized water can be directed both to the inside of the inlet area and the outlet area as well as to the entire outside of the rear area of the truck mixer drum spray nozzle. For particularly stubborn dirt or residual concrete caking can be done on the controllable high pressure targeted strengthening of emerging from the spray / spray heads water jets.

In einer weiteren Ausführungsvariante kann in der Reinigungskammer, in welche das Transportbetonfahrzeug mit einer rückwärtigen Seite einfährt, eine Rahmenkonstruktion aufgenommen sein, an der in vertikale Richtung verfahrbare Gelenkarme aufgenommen sind. Die Gelenkarme sind an Laufschienen in horizontaler und vertikale Richtung verfahrbar aufgenommen und werden über in der Rahmenkonstruktion integrierte Antriebe bewegt. Diese können als Elektroantriebe oder pneumatische Antriebe ausgeführt sein. Die Gelenkarme können einen ersten Gelenkarmabschnitt sowie einen zweiten Gelenkarmabschnitt aufweisen. Der zweite Gelenkarmabschnitt ist durch eine Gelenkstelle mit dem ersten Gelenkarmabschnitt verbunden und trägt eine Anzahl von Sprüh-/Spritzköpfen, die sowohl in vertikale als auch in horizontale Richtung verschwenkbar sein können. An den ansteuerbaren Gelenkarmen, an welchem der Druck der aus den Sprüh-/Spritzköpfen austretenden Wasserstrahlen beliebig eingestellt werden kann, wird Druckwasser zugeführt. Die Reinigungskammern, welche das hintere Ende des Transportbetonfahrzeugs umgeben, kapseln die Umgebung gegen Verunreinigung ab, so z.B. gegen die bei der Reinigung entstehenden gelöste Partikel enthaltenden Wassernebel; in vorteilhafter Weise sind die Böden der Reinigungskammern als Zulaufbleche beschaffen, über welche der abgespülte Beton bzw. der Schmutz einer zentralen Restbetonauswaschanlage und/oder einem Auffangbecken zugeführt werden kann. Die Reinigungskammern können darüber hinaus in einzelne Sektionen nebeneinander liegend ausgebildet sein. Dazu kann an den Reinigungskammern eine Reihe von Sprüh-/Spritzköpfen angebracht werden, der die Fahrmischertrommel eines Transportbetonfahrzeugs zur Gänze übergibt, so dass sich mit einer derart modifizierten Reinigungskammer der gesamte Außenbereich einer Fahrmischertrommel eines Transportbetonfahrzeugs reinigen lässt.In a further embodiment variant, in the cleaning chamber into which the ready-mixed concrete vehicle enters with a rear side, a frame construction can be accommodated, on which articulated arms movable in the vertical direction are accommodated. The articulated arms are movably mounted on rails in horizontal and vertical direction and are moved by integrated in the frame structure drives. These can be designed as electric drives or pneumatic drives. The articulated arms may have a first Gelenkarmabschnitt and a second Gelenkarmabschnitt. The second Gelenkarmabschnitt is connected by a hinge point with the first Gelenkarmabschnitt and carries a number of spray / spray heads, which can be pivoted in both vertical and horizontal direction. At the controllable articulated arms, on which the pressure of the water jets emerging from the spray / spray heads can be arbitrarily set, pressurized water is supplied. The cleaning chambers surrounding the rear end of the ready-mixed concrete vehicle encapsulate the environment from contamination, e.g. against the mist produced during the purification of dissolved particles containing water; Advantageously, the floors of the cleaning chambers are designed as inlet plates, via which the rinsed concrete or the dirt of a central residual concrete washing plant and / or a collecting basin can be supplied. The cleaning chambers can also be formed adjacent to each other in individual sections. For this purpose, a series of spray / spray heads can be attached to the cleaning chambers, which completely transfers the truck mixer drum of a ready-mixed concrete vehicle, so that the entire exterior of a truck mixer drum of a ready-mixed concrete vehicle can be cleaned with such a modified cleaning chamber.

In einer weitergehenden Ausführungsvariante kann der Reinigungsvorrichtung zur Reinigung insbesondere der Innen- und der Außenseite der Fahrmischertrommel des Transportbetonfahrzeugs eine automatisierbare Dosiereinrichtung zugeordnet sein. Diese automatisierte Dosiereinrichtung umfasst mindestens einen Behälter sowie eine Pumpe. In dem Behälter ist ein Mittel zur Vor- bzw. Nachbehandlung der Innenseite des Einlauf- bzw. des Auslaufbereichs der Fahrmischertrommel zugeordnet. Dieses Mittel verhindert das vorzeitige Anbacken von Beton an den Innenseiten von Einlauf- und Auslaufbereich der Fahrmischertrommel.In a further embodiment, the cleaning device may be associated with an automatable metering device for cleaning in particular the inside and the outside of the truck mixer drum of the ready-mixed concrete vehicle. This automated metering device comprises at least one container and a pump. In the container is a means for pre- and post-treatment of the inside of the inlet or the outlet region of the truck mixer drum assigned. This agent prevents the premature caking of concrete on the insides of the inlet and outlet area of the truck mixer drum.

In vorteilhafter Weise wird das automatisierte Reinigungsverfahren zur Reinigung insbesondere der Innen- und der Außenseite eines Einlauf- bzw. Auslaufbereichs einer Fahrmischertrommel über eine Steuerung koordiniert. Innerhalb der Steuerung können die Maße des Endbereichs einer Fahrmischertrommel gängiger Transportbetonfahrzeugtypen gespeichert werden. In der Steuereinrichtung, beispielsweise einer SPS-Steuerung, können darüber hinaus die Verfahrwege der Gelenkarme in vertikale Richtung, in horizontale Richtung sowie der Schwenkbereich der an den Gelenkarmen verschwenkbar ausgebildeten Sprüh-/Spritzköpfe gespeichert sein. In der Steuerung der Sprüh- oder Spritzköpfe können ferner besonders hartnäckige Verschmutzungen aufweisende Bereiche der Innen- oder Außenseite des Einlauf- oder Auslaufbereichs der Fahrmischertrommel gespeichert werden. Über die Steuerung können der Wasserverbrauch sowie die Zusatzmittelmengen optimiert werden. Über die Steuerung kann der Druck des örtlichen Wasserversorgungsnetzes erforderlichenfalls angepasst oder der an einer zwischengeschalteten Hochdruckeinrichtung zur Verfügung stehende Wasserdruck geregelt werden.Advantageously, the automated cleaning method for cleaning in particular the inside and the outside of an inlet or outlet region of a truck mixer drum is coordinated via a controller. Within the controller, the dimensions of the end area of a truck mixer drum of common types of ready-mix concrete vehicles can be stored. In addition, in the control device, for example a PLC control system, the travel paths of the articulated arms can be stored in the vertical direction, in the horizontal direction and the pivoting range of the spray / spray heads pivotable on the articulated arms. In the control of the spray or spray heads also particularly stubborn soiling areas of the inside or outside of the inlet or outlet area of the truck mixer drum can be stored. The controller can be used to optimize water consumption as well as additive quantities. If necessary, the pressure of the local water supply network can be adjusted via the controller or the water pressure available at an intermediate high-pressure device can be regulated.

Zeichnungdrawing

Anhand der Zeichnung wir die Erfindung nachstehend eingehender beschrieben.With reference to the drawing, the invention will be described in more detail below.

Es zeigt:

Figur 1
mehrere nebeneinander angeordnete Reinigungskammern, wobei in einer der Reinigungskammern ein Transportbetonfahrzeug eingefahren ist,
Figur 2
eine weitere Ausführungsvariante einer erfindungsgemäß vorgeschlagenen Reinigungsvorrichtung für Fahrmischertrommeln mit einer starre Arme aufweisenden Rahmenkonstruktion,
Figur 3
eine weitere Ausführungsvariante einer erfindungsgemäß vorgeschlagenen Vorrichtung zur Reinigung der hinteren Bereiche von Fahrmischertrommeln mit an einer Rahmenkonstruktion angeordneten Gelenkarmen mit verschwenkbaren Sprüh-/Spritzköpfen und
Figur 4
eine Seitenansicht eines in einer Reinigungskammer eingefahrenen Transportfahrzeugs mit einer in die Reinigungskammer integrierten Rahmenkonstruktion mit verfahrbar ausgebildeten Gelenkarmen sowie einer der Reinigungskammer zugeordneten Restbetonauswaschanlage und einem Auffangbecken,
Figur 4a
ein in den Boden eingelassenes Auffangbecken, das beispielsweise durch ein Schöpfrad einer Restbetonauswaschanlage entleert wird und
Figur 4b
eine Restbetonauswaschanlage, deren Aufgabetisch vertieft in die Bodenfläche eingelassen ist.
It shows:
FIG. 1
several juxtaposed cleaning chambers, wherein in one of the cleaning chambers a transport concrete vehicle is retracted,
FIG. 2
a further embodiment of an inventively proposed cleaning device for driving mixer drums with a rigid arms having frame construction,
FIG. 3
a further embodiment of a device proposed according to the invention for cleaning the rear portions of truck mixer drums arranged on a frame structure with articulated arms with pivotable spray / spray heads and
FIG. 4
a side view of a retracted in a cleaning chamber transport vehicle with a built-in cleaning chamber frame construction with movable articulated arms and a cleaning chamber associated Restbetonauswaschanlage and a catch basin,
FIG. 4a
a catch basin embedded in the ground, which is emptied, for example, by a scoop wheel of a residual concrete washing plant, and
FIG. 4b
a residual concrete washing plant, the feeding table recessed in the bottom surface.

Aus der Darstellung gemäß Figur 1 geht ein mit einem hinteren Bereich in einer Reinigungskammer eingefahrenes Transportbetonfahrzeug hervor, wobei in die Rückwandkammer die beiden Begrenzungswände sowie in die Dachfläche der Reinigungskammer Sprüh-/Spritzköpfe integriert sind.The illustration according to FIG. 1 shows a ready-mixed concrete vehicle which has been retracted into a rear area in a cleaning chamber, wherein the two boundary walls and spray / spray heads are integrated in the rear wall chamber.

Auf einem Transportbetonfahrzeug 1 ist eine Fahrmischertrommel 2 aufgenommen. Die Fahrmischertrommel wird mit Frischbeton, der in der Regel mit in einem Betonzwangsmischer angemacht wird, befüllt. Dieser wird über einen Einfüllbereich 3, der als Einfülltrichter 5 ausgebildet ist, in die Fahrmischertrommel 2 gegeben. Unterhalb des Einfüllbereichs 3 befindet sich ein Auslaufbereich 4, der einen Auslauftrichter 29 und eine seitlich verschwenkbare sowie als auch in ihrer Auslaufhöhe verstellbare Auslaufschütte 6 aufweist. Innenseiten 7 des Einlauftrichters 5, des Auslauftrichters 29 und der Auslaufschütte 6 kommen mit dem einzufüllenden Beton in Berührung; dieser bleibt an den Innenseiten 7 haften. Die Außenseite 8 des Einfüllbereichs 3 sowie des Auslaufbereichs 4 wird bauseitig stark verschmutzt, man denke nur an mit Kränen beförderte Betonbottiche, aus denen bei undichter Verschlusskappe der Frischbeton auf die Fahrmischertrommel spritzt.On a ready-mixed concrete vehicle 1 a truck mixer drum 2 is added. The truck mixer drum is filled with fresh concrete, which is usually turned on in a concrete mixer. This is placed in the truck drum 2 via a filling area 3, which is designed as a hopper 5. Below the filling area 3 there is an outlet area 4, which has a discharge funnel 29 and a laterally pivotable and also in its outlet height adjustable discharge chute 6. Inner sides 7 of the inlet funnel 5, the outlet funnel 29 and the outlet chute 6 come into contact with the concrete to be filled; this sticks to the insides 7. The outside 8 of the filling area 3 and the outlet area 4 is badly contaminated on site, just think of concrete vats carried with cranes, from which the fresh concrete splashes on the truck mixer drum when the cap is leaking.

Das erfindungsgemäß vorgeschlagene Reinigungsverfahren wird innerhalb einer Reinigungskammer 9 ausgeführt, welche eine erste Schutzwand 10, eine Rückwand 11, ein Kammerdach 12 sowie eine zweite Schutzwand 13 aufweist; ferner an einem Reinigungsplatz mit Begrenzungswänden, d.h. 1. Schutzwand 10, Rückwand 11 und 2. Schutzwand 13. Die Verteilerleitungen in der Reinigungskammer 9 werden an die örtliche Wasserversorgung 53 angeschlossen; bei nicht ausreichendem Druck erfolgt der Anschluss der örtlichen Wasserversorgung 58 an ein Wasserhochdruckgerät 54 und dann an die Verteilerleitungen in der Reinigungskammer 9. Der Boden der Reinigungskammer 9 wird durch Zulaufbleche 18 gebildet, über welche die abgespülten Verunreinigungen in ein Becken 19 zu einer in Figur 1 nicht dargestellten Restbetonauswaschanlage abgeführt werden können. Die abgespülten Verunreinigungen aus dem Einzelbereich 3 werden über die Auslaufschütte 6 abgeführt. In das Kammerdach 12, die erste Begrenzungswand 10 und die zweite Begrenzungswand 13 der Reinigungskammer 9 sind integrierte Dachsprühköpfe 14 sowie integrierte Seitenwandsprühköpfe 15 eingelassen. Über aus diesen austretende Wasserstrahlen 16 werden sowohl die Außenseite 8 des Einfüllbereichs 3 und des Auslaufbereichs 4 als auch die Innenseiten 7 des Einfülltrichters 5, des Auslauftrichters 29 und der Auslaufschütte 6 mit Druckwasserstrahl abgespritzt. Der sich im Sprühbereich 17 bildende Wassernebel, der durch aufgelöste Additive der dem Beton zugegebenen Zusätze kontaminiert sein kann, verbleibt im Wesentlichen im Inneren der Reinigungskammer 9. Die in das Kammerdach 12 integrierten Dachsprühköpfe 14 sind bevorzugt so angeordnet, dass über diese die Innenseite 7, insbesondere des Einfüllbereichs 3, d.h. des Einlauftrichters 5 gereinigt werden können. Das eingetragene Spritzwasser verlässt die Reinigungskammer 9.The cleaning method proposed according to the invention is carried out within a cleaning chamber 9 which has a first protective wall 10, a rear wall 11, a chamber roof 12 and a second protective wall 13; further at a cleaning station with boundary walls, ie 1st protective wall 10, rear wall 11 and 2nd protective wall 13. The distribution lines in the cleaning chamber 9 are connected to the local water supply 53; if there is insufficient pressure, the connection of the local water supply 58 to a high-pressure water device 54 and then to the Distributor lines in the cleaning chamber 9. The bottom of the cleaning chamber 9 is formed by inlet plates 18, via which the flushed impurities can be discharged into a basin 19 to a Restbetonauswaschanlage not shown in Figure 1. The rinsed impurities from the individual area 3 are discharged via the outlet chute 6. In the chamber roof 12, the first boundary wall 10 and the second boundary wall 13 of the cleaning chamber 9 integrated Dachsprühköpfe 14 and integrated Seitenwandsprühköpfe 15 are embedded. Both the outer side 8 of the filling area 3 and the outlet area 4 and the inner sides 7 of the filling funnel 5, the outlet funnel 29 and the outlet chute 6 are sprayed with pressurized water jet via water jets 16 emerging from these. The water mist forming in the spray area 17, which may be contaminated by dissolved additives of the additives added to the concrete, essentially remains in the interior of the cleaning chamber 9. The roof spray heads 14 integrated in the chamber roof 12 are preferably arranged such that the inner side 7, in particular of the filling area 3, ie the inlet funnel 5 can be cleaned. The registered spray leaves the cleaning chamber 9.

Die aus den in die Seitenwände integrierten Sprüh-/Spritzköpfe 15 sowie aus den Sprüh-/Spritzköpfen der Rückwand 11 sowie aus den Sprüh-/Spritzköpfen in der Dachfläche 14 austretenden Wasserstrahlen 16 können über ein regelbares Regelventil 59 hinsichtlich ihres Druckes zwischen frei vorwählbaren Druckniveaus geregelt werden. Damit können die aus den Sprüh-/Spritzköpfen 14 und 15 austretenden Wasserstrahlen 16 hinsichtlich ihres Druckes gezielt auf besonders hartnäckige Anbackungen von Beton gerichtet werden.The water jets 16 emerging from the spray / spray heads 15 integrated into the side walls and from the spray / spray heads of the rear wall 11 and from the spray / spray heads in the roof surface 14 can be regulated via an adjustable control valve 59 with respect to their pressure between freely preselectable pressure levels become. In order for the emerging from the spray / spray heads 14 and 15 water jets 16 can be directed in terms of their pressure targeted at particularly stubborn caking of concrete.

Aus der Darstellung gemäß Figur 2 geht eine Reinigungskammer 9 hervor, in welche das Transportbetonfahrzeug 1 mit dem rückwärtigen Ende der Fahrmischertrommel 2 eingefahren ist. Neben der durch das Transportbetonfahrzeug 1 belegten Reinigungskammer 9 können nebeneinander liegend mehrere Reinigungskammern 9 angeordnet sein, die voneinander durch einzelne Schutzwände 10 getrennt sind und welche allesamt über individuelle Zulaufbleche 18 mit einer in Figur 2 nicht dargestellten Restbetonauswaschanlage 43 verbunden sind. Die Böden der Reinigungskammern 9 sind allesamt mit Zulaufblechen 18 ausgelegt, über welche das abgespülte Schmutzwasser sowie der darin gelöste Restbeton auch über die Auflaufschütte 6 in ein Auffangbecken 19 und gegebenenfalls in eine Restbetonauswaschanlage 43 geleitet werden kann.From the illustration according to FIG. 2, a cleaning chamber 9 emerges into which the ready-mixed concrete vehicle 1 has retracted to the rear end of the truck mixer drum 2. In addition to the occupied by the ready-mixed concrete vehicle 1 cleaning chamber 9 can be arranged side by side several cleaning chambers 9, which are separated from each other by individual walls 10 and which are all connected via individual inlet plates 18 with a Restbetonauswaschanlage 43 not shown in Figure 2. The floors of the cleaning chambers 9 are all designed with inlet plates 18, via which the rinsed waste water and the residual concrete dissolved therein can also be passed through the casserole 6 in a catch basin 19 and optionally in a Restbetonauswaschanlage 43.

Im Gegensatz zur in Figur 1 dargestellten Ausführungsvariante der Reinigungskammer mit in die Seitenflächen 10, 13 sowie 12 integrierten Sprüh-/Spritzköpfen, ist in der Reinigungskammer 9 gemäß der Darstellung in Figur 2 eine stationäre Rahmenkonstruktion 20 aufgenommen. Die Rahmenkonstruktion 20 umfasst zwei Rahmensäulen 21, die durch einen Rahmenquerträger 22, 27 miteinander verbunden sind. An jeder der Rahmensäulen 21 ist ein starrer Gelenkarm 24 bzw. 25 aufgenommen. Zusätzlich weist der Rahmenquerträger 22, welcher am oberen Ende der Rahmensäulen 21 auf diesen ruht, einen dritten starren Arm 26 auf. Der dritte starre Arm 26 ist so orientiert, dass die in diesem ausgebildeten Sprüh-/Spritzköpfe 23 die Innenseite 7 des Einfülltrichters 5 erreichen und die aus diesen Sprüh-/Spritzköpfen 23 austretenden Wasserstrahlen 16 von der Innenseite 7 Anbackungen sowie Verschmutzungen zu entfernen vermögen.In contrast to the embodiment of the cleaning chamber shown in Figure 1 with integrated in the side surfaces 10, 13 and 12 spray / spray heads, is in the Cleaning chamber 9 as shown in Figure 2, a stationary frame construction 20 was added. The frame structure 20 comprises two frame columns 21, which are interconnected by a frame cross member 22, 27. At each of the frame columns 21, a rigid articulated arm 24 and 25 is received. In addition, the frame cross member 22, which rests on the upper end of the frame columns 21 on this, a third rigid arm 26. The third rigid arm 26 is oriented so that the spray / spray heads 23 formed in it reach the inside 7 of the hopper 5 and the water jets 16 emerging from these spray / spray heads 23 are able to remove caking and soiling from the inside 7.

Die an der starren Rahmenkonstruktion 20 aufgenommenen Seitenarme 24, 25 sind so weit voneinander beabstandet, dass gängige Typen von Transportbetonfahrzeugen 1 mit ihrem rückwärtigen Ende teilweise in die Reinigungskammern 9 gemäß der Darstellung in Figur 2 einfahren können, ohne dass die Seitenflächen beschädigt werden. An dem ersten starren Seitenarm 24 sowie am zweiten starren Seitenarm 25 sind vorzugsweise mehrere Sprüh-/Spritzköpfe 23 aufgenommen, deren Wasserstrahlen 16 die Außenseite 8 sowohl des Einlaufbereichs 3, d.h. den Einlauftrichter 5 als auch des Auslaufbereichs 4, d.h. den Auslauftrichter 29 und die Auslaufschütte 6 erreichen. Aufgrund der Kapselung der starren Rahmenkonstruktion. 20 innerhalb der Reinigungskammer 9 sind weitere Reinigungskammern 9 gegen Kontamination durch Wassernebel geschützt; gemäß der Darstellung in Figur 2 können die weiteren Reinigungskammern 9 ebenso zur Reinigung des rückwärtigen Bereichs von Fahrmischertrommeln 2 von Transportbetonfahrzeugen 1 genutzt werden. Jede der Reinigungskammern 9 ist mit Zulaufblechen 18 in der Bodenfläche versehen. Das Spritzwasser und der Restbeton verlassen die Reinigungskammer 9.The side arms 24, 25 received on the rigid frame construction 20 are spaced apart so far that common types of ready-mixed concrete vehicles 1 can partially enter with their rear end into the cleaning chambers 9 as shown in FIG. 2, without the side surfaces being damaged. On the first rigid side arm 24 and on the second rigid side arm 25, a plurality of spray / spray heads 23 are preferably received whose water jets 16 cover the outside 8 of both the inlet region 3, i. the inlet funnel 5 and the outlet area 4, i. reach the outlet funnel 29 and the outlet chute 6. Due to the encapsulation of the rigid frame construction. 20 within the cleaning chamber 9 further cleaning chambers 9 are protected against contamination by water mist; As shown in FIG. 2, the further cleaning chambers 9 can also be used to clean the rear area of truck mixer drums 2 of ready-mixed concrete vehicles 1. Each of the cleaning chambers 9 is provided with inlet plates 18 in the bottom surface. The splash and the residual concrete leave the cleaning chamber. 9

Anstelle der in Figur 2 dargestellten zwei starren Seitenarmen 24, 25 sowie 26 können auch seitlich übereinander liegend mehrere starre Seitenarme an der starren Rahmenkonstruktion 20 aufgenommen sein. Darüber hinaus ist es möglich, am Querträger 22, 27 der starren Rahmenkonstruktion 20 auch mehrere das Ende der Fahrmischertrommel 2 teilweise überragende Arme 26 aufzunehmen. Die in den starren Seitenarmen 24, 25 bzw. im Zentralarm 26 aufgenommenen Sprüh-/Spritzköpfe 23 können über regelbare Ventile 59 mit unterschiedlichen Wasserdrücken beaufschlagt werden, so dass von besonders stark verschmutzten Stellen an der Innenseite 7 des Einlaufbereichs 3 bzw. der Innenseite der Auslaufschütte 6 und des Auslauftrichters 29 hartnäckig anhaftende Betonanbackungen entfernbar sind. Die in den starren Seitenarmen 24, 25 sowie im starren Zentralarm 26 angeordneten Sprüh-/Spritzköpfe sind mit Bezugszeichen 28 gekennzeichnet, die am Querträger 22, 27 der starren Rahmenkonstruktion 20 angebrachten Sprühköpfe sind durch Bezugszeichen 23 gekennzeichnet. Die Wasserversorgung der Sprühköpfe 28 bzw. 23 erfolgt durch die örtliche Wasserversorgung 53, 58 oder über das Hochdruckgerät 54, wobei der Druck über Regelventile 59 geregelt werden kann. Am Regelventil 59 kann der Druck des aus den Sprüh-/Spritzköpfen 23, 28 austretenden Wasserstrahls 16 eingestellt werden, so dass hartnäckige Anbackungen an den Innenseiten 7 bzw. den Außenseiten 8 des Einfüllbereichs 3 und des Auslaufbereichs 4 mit höheren Wasserdrücken behandelt werden können.Instead of the two rigid side arms 24, 25 and 26 shown in FIG. 2, a plurality of rigid side arms can also be accommodated on the rigid frame structure 20 laterally one above the other. Moreover, it is possible, on the cross member 22, 27 of the rigid frame structure 20 also accommodate a plurality of the end of the truck drum 2 partially superior arms 26. The spray / spray heads 23 accommodated in the rigid side arms 24, 25 or in the central arm 26 can be acted upon by adjustable valves 59 with different water pressures, so that particularly heavily soiled areas on the inside 7 of the inlet area 3 and the inside of the outlet chute 6 and the outlet funnel 29 persistently adhering Betonanbackungen are removable. The spraying / spraying heads arranged in the rigid side arms 24, 25 as well as in the rigid central arm 26 are identified by the reference numeral 28, which on the Cross members 22, 27 of the rigid frame structure 20 mounted spray heads are indicated by reference numeral 23. The water supply to the spray heads 28 and 23 takes place through the local water supply 53, 58 or via the high-pressure device 54, wherein the pressure can be regulated by control valves 59. At the control valve 59, the pressure of the water jet 16 emerging from the spray / spray heads 23, 28 can be adjusted, so that stubborn caking on the inner sides 7 or the outer sides 8 of the filling area 3 and the outlet area 4 can be treated with higher water pressures.

Der Darstellung gemäß Figur 3 ist eine weitere Ausführungsvariante einer Reinigungsvorrichtung zur Reinigung der Innen- und Außenseiten des hinteren Bereichs einer Fahrmischertrommel eines Transportbetonfahrzeugs zu entnehmen.The illustration according to FIG. 3 shows a further embodiment variant of a cleaning device for cleaning the inner and outer sides of the rear area of a truck mixer drum of a ready-mixed concrete vehicle.

In die Reinigungskammer 9 ist ein Transportbetonfahrzeug 1 mit dem hinteren Bereich seiner Fahrmischertrommel 2 eingefahren. Die Reinigungskammer 9 wird durch eine erste seitliche Begrenzungswand 10, eine zweite seitliche Begrenzungswand 13, eine Rückwand 11 sowie das Kammerdach 12 begrenzt. Die Bodenfläche der Reinigungskammer 9 ist als Zulaufblech 18 beschaffen. Es können mehrere durch die zweiten Wände 10 voneinander getrennte Reinigungskammern 9 vorgesehen sein, welche untereinander durch das Kammerdach 12 bzw. die Seitenwände 10, 13 gekapselt sind. Über die Zulaufbleche 18 verlassen Reinigungswasser und Restbeton die Reinigungskammern 9.In the cleaning chamber 9, a ready-mixed concrete vehicle 1 is retracted with the rear portion of its truck mixer drum 2. The cleaning chamber 9 is bounded by a first lateral boundary wall 10, a second lateral boundary wall 13, a rear wall 11 and the chamber roof 12. The bottom surface of the cleaning chamber 9 is designed as a feed plate 18. A plurality of cleaning chambers 9 separated from each other by the second walls 10 may be provided, which are encapsulated with one another by the chamber roof 12 or the side walls 10, 13. Cleaning water and residual concrete leave the cleaning chambers 9 via the inlet plates 18.

In der in Figur 3 dargestellten Ausführungsvariante der erfindungsgemäß vorgeschlagenen Reinigungsvorrichtung ist innerhalb der Reinigungskammer 9, in welche das Transportbetonfahrzeug 1 mit seinem hinteren Bereich eingefahren ist, ein Rahmen 20 aufgenommen, an welchem Gelenkarme 31 bzw. 32 verfahrbar aufgenommen sind. Am Rahmen 20 ist zumindest ein Antrieb 30 vorgesehen. An dem ersten Gelenkarm 31 sowie dem zweiten Gelenkarm 32 sind mehrere Sprüh-/Spritzköpfe aufgenommen, die über eine Wasserversorgung 53 oder ein Hochdruckgerät 54 mit Wasser versorgt werden. Die Hochdruckeinrichtung 54 kann außerhalb der Wasserreinigungskammer 9 angeordnet sein. Über die Antriebe 30 lassen sich die Gelenkarme 31, 32 in vertikale Richtung, d.h. senkrecht zur Zeichenebene gemäß Figur 3 verfahren. Die Gelenkarme 31, 32 weisen jeweils eine Gelenkstelle 33 auf, an welcher ein erster Gelenkarmabschnitt 31 und ein zweiter Gelenkarmabschnitt 35 gelenkig miteinander gekoppelt sind. Ebenso ist durch den Einsatz von Antrieben 30 ein Verfahren der Sprüh-/Spritzeinrichtungen in horizontale Richtung über einen Querträger 22 realisierbar. Wie in Figur 3 dargestellt ist, sind an den ersten Gelenkarmabschnitten 34 mehrere Sprüh-/Spritzköpfe 23 aufgenommen, welche auf die Außenseite 8 des Einfüll- und des Auslaufbereichs 3, 4 gerichtet sind. Je nach Einknicken der Gelenkarme 31, 32 lassen sich die an den Gelenkarmabschnitten 34 bzw. 35 aufgenommenen Sprüh-/Spritzköpfe 23 an die Kontur des Ein- und Auslaufbereichs 3, 4 der Fahrmischertrommel 2 anstellen, so dass eine besonders effektive Reinigung durch dichtes Heranführen der Sprühköpfe an die zu reinigende Außenseite 8 gewährleistet ist.In the embodiment variant of the cleaning device proposed according to the invention shown in FIG. 3, a frame 20 is accommodated within the cleaning chamber 9, into which the ready-mixed concrete vehicle 1 has retracted with its rear area, on which articulated arms 31 and 32 are moveably accommodated. At least one drive 30 is provided on the frame 20. On the first articulated arm 31 and the second articulated arm 32 more spray / spray heads are added, which are supplied via a water supply 53 or a high pressure device 54 with water. The high-pressure device 54 may be arranged outside the water purification chamber 9. Via the drives 30, the articulated arms 31, 32 can be moved in the vertical direction, ie perpendicular to the plane of the drawing according to FIG. The articulated arms 31, 32 each have a hinge point 33, on which a first articulated arm portion 31 and a second articulated arm portion 35 are pivotally coupled together. Likewise, the use of drives 30, a method of spraying / spraying devices in the horizontal direction via a cross member 22 can be realized. As shown in FIG. 3, a plurality of spray / spray heads 23 are accommodated on the first articulated arm sections 34, said spraying heads 23 being accommodated on the outside 8 of the filling and the outlet region 3, 4 are directed. Depending on the buckling of the articulated arms 31, 32, the spray / spray heads 23 received on the articulated arm sections 34 and 35 can be adjusted to the contour of the inlet and outlet areas 3, 4 of the truck mixer drum 2, so that a particularly effective cleaning by means of dense feeding of the Spray heads to the outside to be cleaned 8 is ensured.

Darüber hinaus können die an den Enden der ersten Gelenkarmabschnitte 34 aufgenommenen Sprüh-/Spritzköpfe 23 innerhalb eines Schwenkbereichs 41 in horizontaler Ebene verschwenkbar ausgebildet sein.In addition, the spray / spray heads 23 accommodated at the ends of the first articulated arm sections 34 can be designed to be pivotable within a pivoting region 41 in a horizontal plane.

Dem Rahmen 20 ist eine externe Wasserhochdruckeinrichtung 54 zugeordnet, die außerhalb der Reinigungskammer 9 angeordnet sein kann. An der Hochdruckeinrichtung 54, die eine Druckregelung enthält, lässt sich der Wasserdruck, der aus den Sprüh-/Spritzköpfen 23 austretenden Wasserstrahlen 16 einstellen, d.h. erhöhen bzw. herabsetzen.The frame 20 is associated with an external high-pressure water device 54, which may be arranged outside the cleaning chamber 9. At the high-pressure device 54, which contains a pressure control, the water pressure, the water jets 16 emerging from the spray / spray heads 23 can be adjusted, i. increase or decrease.

Figur 4 ist die Seitenansicht eines Transportbetonfahrzeugs zu entnehmen, dessen rückwärtiger Teil in eine Reinigungskammer eingefahren ist.FIG. 4 is a side view of a ready-mixed concrete vehicle, the rear part of which is retracted into a cleaning chamber.

Der hintere Bereich der Fahrmischertrommel 2 des Transportbetonfahrzeugs 1 ist von den Seitenwänden 10, 13 der Rückwand 11 sowie dem Kammerdach 12 der Reinigungskammer 9 umschlossen. Der Boden der Reinigungskammer 9 wird durch Zulaufbleche 18 gebildet, um das Spülwasser abzuleiten. Innerhalb der Reinigungskammer 9 ist eine der Rahmensäulen 21 des Rahmens 20 dargestellt, an welchem eine Laufschiene 36 angeordnet ist. Entlang der Laufschiene 36 der Rahmensäule 49 ist der zweite Gelenkarm 32 in vertikale Richtung 42 verfahrbar. Der zweite Gelenkarm 32 umfasst den ersten Gelenkarmabschnitt 34 und den zweiten Gelenkarmabschnitt 35, die an einem Gelenk 33 miteinander verbunden sind. An dem dem Transportbetonfahrzeug 1 zuweisenden Ende weist der erste Gelenkarmabschnitt 34 einen schwenkbaren Sprüh-/Spritzkopf 37 auf, der in vertikale Richtung verschwenkbar ist. Mittels der in Figur 3 dargestellten Antriebe 30 sind die Gelenkarme 31, 32 in vertikale Richtung verfahrbar, ferner erfolgt über die Antriebe ein Zustellen der dem Fahrmischertrommelende zuweisenden Sprüh-/Spritzköpfe 23 sowie das Einknicken der Gelenkarme 31, 32 an ihrer Gelenkstelle 33 zur optimalen Positionierung der Sprüh-/Spritzköpfe entsprechend der zu reinigenden Außenkontur des Einfüll- und des Auslaufbereichs 3, 4. Gemäß dieser Ausführungsvariante kann auch ein Zulauftisch 44 der Restbetonauswaschanlage 43 bei Verschwenken der Gelenkarme 31, 32 um 180° durch Hochdruckstrahlen 16 gereinigt werden.The rear area of the truck mixer drum 2 of the ready-mixed concrete vehicle 1 is enclosed by the side walls 10, 13 of the rear wall 11 and the chamber roof 12 of the cleaning chamber 9. The bottom of the cleaning chamber 9 is formed by inlet plates 18 to dissipate the rinse water. Within the cleaning chamber 9, one of the frame columns 21 of the frame 20 is shown, on which a running rail 36 is arranged. Along the running rail 36 of the frame column 49, the second articulated arm 32 in the vertical direction 42 is movable. The second articulated arm 32 comprises the first articulated arm section 34 and the second articulated arm section 35, which are connected to one another at a joint 33. At the end facing the ready-mixed concrete vehicle 1, the first articulated arm section 34 has a pivotable spray / spray head 37, which can be pivoted in the vertical direction. By means of the drives 30 shown in Figure 3, the articulated arms 31, 32 are movable in the vertical direction, also takes place via the drives a delivery of the Fahrmischertrommelende assigning spray / spray heads 23 and the buckling of the articulated arms 31, 32 at its hinge point 33 for optimal positioning According to this embodiment, a feed table 44 of the Restbetonauswaschanlage 43 upon pivoting of the articulated arms 31, 32 are cleaned by 180 ° by high-pressure jets 16 of the spraying / spraying heads.

Wie aus der Darstellung gemäß Figur 4 erkennbar, sind im Kammerdach 12 der Reinigungskammer 9 integrierte Sprüh-/Spritzköpfe 14 aufgenommen, mit welchen insbesondere die Innenseite 7 des Einfüllbereichs 3 der Fahrmischertrommel 2 gereinigt werden kann.As can be seen from the illustration according to FIG. 4, integrated spray / spray heads 14 are received in the chamber roof 12 of the cleaning chamber 9, with which in particular the inside 7 of the filling area 3 of the truck mixer drum 2 can be cleaned.

Die Wasserversorgung der Sprüh-/Spritzköpfe 14, 23 erfolgt über eine Hochdruckeinrichtung 54, die außerhalb der Reinigungskammer 9 angeordnet ist. Der Reinigungskammern 9 ist eine Dosiereinrichtung 50 zugeordnet, die einen ersten Behälter 51 sowie einen zweiten Behälter 52 zur Aufnahme z.B. eines Trennmediums aufweisen kann. Die Dosiereinrichtung der mindestens einen oder auch die in Figur 4 dargestellten zwei Behälter 51, 52 aufweisen kann, ist mit einer Pumpe 53 versehen. Die Dosiereinrichtung 50 ist eine Leitung zu den Sprüh-/Spritzköpfen 14, 23 vorgesehen. Über diese wird auf die mit Beton in Berührung tretenden Flächen der Innenseiten 6 und der Außenseiten 8 des Einlauftrichters 5, des Auslauftrichters 29 sowie die Innenseite der Auslaufschütte 6 aufgebracht, um vorzeitiges Anpacken des Betons sowie nach dem Entleeren der Fahrmischertrommel 2 verbleibende Restbetonrückstände zu vermindern.The water supply of the spray / spray heads 14, 23 via a high-pressure device 54, which is arranged outside the cleaning chamber 9. The cleaning chambers 9 is associated with a metering device 50, which has a first container 51 and a second container 52 for receiving e.g. a separation medium may have. The metering device, which may have at least one or also the two containers 51, 52 shown in FIG. 4, is provided with a pump 53. The metering device 50 is a line to the spray / spray heads 14, 23 is provided. About this is applied to the concrete coming into contact surfaces of the inner sides 6 and the outer sides 8 of the inlet funnel 5, the outlet funnel 29 and the inside of the outlet chute 6 to reduce premature tackling of the concrete and after emptying the truck drum 2 remaining residual concrete residues.

Die in Figur 4 dargestellte Reinigungskammer 9 kann als Erweiterung eine Haltevorrichtung 40 aufweisen, die den nicht in die Reinigungskammer 9 eingefahrenen Bereich der Fahrmischertrommel 2 überdeckt. Über an der Unterseite der Haltevorrichtung 40 angebrachte Spritzleitung 45 und daran angeordnete Sprüh-/Spritzköpfe 23 kann die gesamte Außenumfangsfläche durch Drehen der Fahrmischertrommel 2 gereinigt werden.The cleaning chamber 9 shown in FIG. 4 can have, as an extension, a holding device 40 which covers the area of the truck mixer drum 2 which has not been retracted into the cleaning chamber 9. By means of spraying line 45 attached to the lower side of holding device 40 and spraying / spraying heads 23 arranged thereon, the entire outer peripheral surface can be cleaned by turning the truck mixer drum 2.

Die in den Figuren 3 und 4 dargestellte verfahrbare Gelenkarme 31, 32 enthaltende Rahmenreinigungsvorrichtung kann über eine Steuerungseinrichtung 55 gesteuert werden. Mit der Steuerungseinrichtung 55 lassen sich sowohl Horizontal- und Vertikalbewegungen 42 der Gelenkarme 31, 32 über die Antriebe 30 (gegebenenfalls auch am Querträger 22), steuern, als auch das Druckniveau, welches über das Hochdruckgerät 54 erzeugt wird, variieren. Im Hochdruckgerät 54 oder an den Regelventilen 59 können die Wasserdruckniveaus, die an den jeweiligen in der Reinigungskammer 9 angeordneten Sprüh-/Spritzeinrichtungen 14, 23 anliegen, frei vorgewählt werden. Über die Steuerungseinrichtung, die einen Lesespeicher 56 umfasst, kann der Wasserdruck, der an den Sprüh-/Spritzköpfen 14, 23 austretenden Wasserstrahlen 16 angepasst werden und ggf. bei besonders hartnäckigen Restbetonanbackungen erhöht werden, so dass diese vollständig abgespült werden können. Im Lesespeicher 56 der Steuerungseinrichtung 55 können die Abmessungen hinsichtlich der Höhe und der Breite gängiger Transportbetonfahrzeuge in Bezug auf das offene Ende der Mischtrommel 2 gespeichert sein. Abhängig von der Höhe und der Breite des Ein-/Auslaufbereichs 3, 4 der Fahrmischertrommel 2 werden die Verfahrwege 42 der Gelenkarme 31, 32, die Verschwenkbewegungen 37, 41 der Sprüh-/Spritzköpfe 23 sowie das Einknicken der Gelenkarme 31, 32 an der Gelenkstelle 33 zur Anpassung an die Außenkontur des zu reinigenden Bereichs, gesteuert. Über die Steuerungseinrichtung 55 kann ferner die Menge des Trennmediums aus der Dosiereinrichtung 50 an die jeweiligen Erfordernisse optimiert angepasst, gesteuert werden. Der Figur 4a ist eine Ausführungsvariante zu entnehmen, bei welcher der Reinigungskammer 9 eine Restbetonauswaschanlage 43 zugeordnet ist, die ein Schöpfrad 46 aufweist. Mittels des Schöpfrades 46 der Restbetonauswaschanlage 43 lässt sich in vorteilhafter Weise eine unter Nullniveau angeordnetes Auffangbecken aufschöpfen, in welches das Spritzwasser bzw. der abgewaschene Restbeton aus dem Reinigungsplatz 9 überführt werden kann.The frame cleaning device comprising movable articulated arms 31, 32 shown in FIGS. 3 and 4 can be controlled via a control device 55. With the control device 55 can be both horizontal and vertical movements 42 of the articulated arms 31, 32 via the actuators 30 (possibly also on the cross member 22), control, as well as the pressure level, which is generated via the high-pressure device 54, vary. In the high-pressure device 54 or on the control valves 59, the water pressure levels which are applied to the respective spraying / spraying devices 14, 23 arranged in the cleaning chamber 9 can be freely preselected. By means of the control device, which comprises a read-only memory 56, the water pressure of the water jets 16 exiting at the spray / spray heads 14, 23 can be adjusted and, if necessary, increased with particularly stubborn residual concrete caking, so that they can be completely rinsed off. In the read memory 56 of the control device 55, the dimensions in terms of height and width more common Transport concrete vehicles with respect to the open end of the mixing drum 2 to be stored. Depending on the height and width of the entry / exit area 3, 4 of the truck mixer drum 2, the travel paths 42 of the articulated arms 31, 32, the pivoting movements 37, 41 of the spray / spray heads 23 and the buckling of the articulated arms 31, 32 at the hinge point 33 for adaptation to the outer contour of the area to be cleaned, controlled. Furthermore, the amount of the separating medium from the metering device 50 can be adapted, controlled and adjusted in an optimized manner to the respective requirements via the control device 55. FIG. 4 a shows an embodiment variant in which the cleaning chamber 9 is assigned a residual concrete washing installation 43, which has a scoop wheel 46. By means of the scoop wheel 46 of the waste concrete washing plant 43, a catch basin arranged below zero level can advantageously be scooped up, into which the spray water or the washed-off residual concrete can be transferred out of the cleaning area 9.

Figur 4b zeigt eine unterhalb des Bodenniveaus angeordnete Restbetonauswaschanlage 43, in deren Zulauftisch 44 durch über die Zulaufbleche 18 abfließendes Spritzwasser bzw. Restbeton befüllbar ist.FIG. 4b shows a residual concrete washing installation 43 arranged below the floor level, in whose feed table 44 spray water or residual concrete flowing off via the inlet plates 18 can be filled.

Gemäß der oben dargestellten Ausführungsvarianten nach den Figuren 1 bis 4b verlässt das Spülwasser mit den Betonresten und Partikeln die Reinigungskammer 9. Die Spülwasserableitung aus der Reinigungskammer 9 wird entsprechend den örtlichen Gegebenheiten realisiert. Gemäß der Darstellung in den Figuren 1 und 2 kann das Ablaufen des Spülwasser über Zulaufbleche 18 oder ein gegebenenfalls vorhandenes Hofgefälle erfolgen, wobei das Spülwasser in ein in Figur 1 dargestelltes Becken 19 über die Zulaufbleche 18 bzw. die Auslaufschütte 6 zugeführt werden kann.According to the embodiment variants shown in FIGS. 1 to 4b, the rinsing water leaves the cleaning chamber 9 with the concrete residues and particles. The rinsing water discharge from the cleaning chamber 9 is realized in accordance with local conditions. According to the illustration in FIGS. 1 and 2, the rinsing water can be drained off via inlet plates 18 or an optional farm gradient, wherein the rinsing water can be fed into a basin 19 shown in FIG. 1 via the inlet plates 18 or the outlet tube 6.

Andererseits kann die Spülwasserableitung gemäß der in Figur 4 dargestellten Variante in einer Restbetonauswaschanlage 43 erfolgen. Die Spülwasserableitung erfolgt in einen Zulauftisch 44 und ein unter Null besetztes Schöpfrad 46. Dieses schöpft das Spülwasser in die Restbetonauswaschanlage 43 sowie ein gegebenenfalls vorhandenes Becken 19. Gemäß dieser Ausführungsvariante wird das Spülwasser über die Zulaufbleche 18 und über die Auslaufschütte 6 zur Restbetonauswaschanlage 43 bzw. deren Zulauftisch 44 geleitet. Bei Einsatz eines unter Nullniveau angeordneten Schöpfrades 46 kann der Zulauf in das Becken 19 entfallen. Gemäß der Ausführungsvariante (vergleiche Figur 4b) kann die Restbetonauswaschanlage 43 unter Nullniveau platziert werden. Dann kann die Spülwasserableitung über die Auslaufschütte 6 und die Zulaufbleche 18 ohne Einsatz eines Auffangbeckens 19 direkt in die Restbetonauswaschanlage 43 eingeleitet werden, die keines Schöpfrades 46 (vergleiche Figur 4a) bedarf.On the other hand, the flushing water discharge can take place according to the variant shown in FIG. 4 in a residual concrete washing installation 43. This flushes the rinse water into the Restbetonauswaschanlage 43 and an optionally existing basin 19. According to this embodiment, the rinse water through the inlet plates 18 and the outlet chute 6 to Restbetonauswaschanlage 43 or whose feed table 44 passed. When using a below zero level arranged scoop wheel 46, the inflow into the tank 19 can be omitted. According to the embodiment variant (compare FIG. 4b), the residual concrete washing installation 43 can be placed below zero level. Then the Spülwasserableitung on the outlet chute 6 and the inlet plates 18 without the use of a Receiving basin 19 are introduced directly into the Restbetonauswaschanlage 43, which requires no bucket 46 (see Figure 4a).

Gemäß der in Figur 4a dargestellten Ausführungsvariante kann der erfindungsgemäß vorgeschlagenen Reinigungseinrichtung gemäß sämtlicher Varianten eine Einheit, ein Schöpfrad 46, die Auswaschanlage 43 bzw. einen Zulauftisch bzw. Beckenanordnung 19, 44 umfassend, nachgeschaltet sein, wobei dieser Einheit das Spülwasser mit Restbeton und Bestandteilen und Partikeln direkt über die Auslaufschütte 6 sowie über die Zulaufbleche 18 der Reinigungskammer 9 zugeleitet werden können.According to the embodiment variant shown in FIG. 4a, according to all variants, the cleaning device proposed according to the invention may be followed by a unit, a scoop wheel 46, the scrubber 43 or a feed table or basin arrangement 19, 44, this unit comprising the rinse water with residual concrete and components and Particles can be fed directly through the outlet chute 6 and the inlet plates 18 of the cleaning chamber 9.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
TransportbetonfahrzeugMixed concrete vehicle
22
Mischtrommel (Fahrmischertrommel)Mixing drum (truck mixer drum)
33
Einfüllbereichfilling area
44
Auslaufbereichdischarge area
55
Einlauftrichterfeed hopper
66
Auslaufschütteoutlet chute
77
Innenseiteinside
88th
Außenseiteoutside
99
Reinigungskammer (Reinigungsplatz)Cleaning chamber (cleaning place)
1010
erste Begrenzungswandfirst boundary wall
1111
Rückwandrear wall
1212
Kammerdachchamber roof
1313
zweite Begrenzungswandsecond boundary wall
1414
integrierte Dachsprühköpfeintegrated roof spray heads
1515
integrierte Seitenwandsprühköpfeintegrated side wall spray heads
1616
austretende Wasserstrahlenemerging jets of water
1717
Sprühbereichspraying
1818
Zulaufblechefeed sheets
1919
Beckenpool
2020
Rahmenkonstruktionframe construction
2121
Rahmensäuleframe column
2222
RahmenquerträgerFrame cross member
2323
Sprüh-/SpritzkopfSpray / spray head
2424
erster starrer Seitenarmfirst rigid side arm
2525
zweiter starrer Seitenarmsecond rigid side arm
2626
Zentralarmcentral arm
2727
RahmenquerträgerFrame cross member
2828
Sprüh-/Spritzköpfe im SeitenarmSpray / spray heads in the side arm
2929
Auslauftrichterdischarge hopper
3030
Antriebdrive
3131
erster Gelenkarmfirst articulated arm
3232
zweiter Gelenkarmsecond articulated arm
3333
Gelenkstellearticulation point
3434
erster Gelenkarmabschnittfirst Gelenkarmabschnitt
3535
zweiter Gelenkarmabschnittsecond Gelenkarmabschnitt
3636
Laufschienerunner
3737
schwenkbarer Sprüh-/Spritzkopfswiveling spray / spray head
4040
Halteeinrichtungholder
4141
Schwenkbereich Sprüh-/SpritzkopfSwivel range spray / spray head
4242
Verfahrrichtung GelenkarmeTravel direction of articulated arms
4343
RestbetonauswaschanlageRestbetonauswaschanlage
4444
Zulauftischentry table
4545
Sprüh-/SpritzleitungSpray / spray line
4646
SchöpfradSchöpfrad
5050
Dosiereinrichtungmetering
511511
erster Behälterfirst container
5252
zweiter Behältersecond container
5353
Pumpepump
5454
Hochdruckeinheit (regelbar)High pressure unit (adjustable)
5555
Steuerungseinrichtungcontrol device
5656
Lesespeicherread-only memory
5757
Arbeitsspeicherrandom access memory
5858
Wasserversorgungwater supply
5959
regelbares Ventiladjustable valve

Claims (9)

  1. Device for cleaning the mixing drum (2) of a truck for ready-mix concrete (1), with the mixing drum (2) comprising a filling inlet region (3) and an outlet region (4) for ready-mix concrete, comprising spray heads (14, 15), characterised in that for cleaning the interior (7) of the filling inlet region (3, 5) of the truck mixing drum (2) the spray heads (14, 15) are associated with limiting faces (10, 13) at the side of the filling inlet region (3, 5) and the outlet region (4, 6) of the truck mixing drum (2) of a cleaning station (9) comprising a cleaning region (17), as well as with a roof surface (12) that delimits the cleaning station (9), and the spray heads (23, 28) are received on rigid arms (24, 25, 26) or articulated arms (31, 32) of a frame (20) which limits the cleaning region (17), and the frame (20) is arranged inside the cleaning space (9) for cleaning the interiors (7) and the exteriors (8) of the filling inlet region (3, 5) and the outlet region (4, 6) of the mixing drum (2), and below the cleaning region (17) there is provided a residual concrete washing unit (43) or a trough (44).
  2. Device according to Claim 1, characterised in that the frame (20) comprises a central arm (26) which is received on a frame cross-piece (22, 27) and runs above the filling inlet region (3, 5) of the truck mixing drum (2) that has been driven into the cleaning station (9).
  3. Device according to Claim 1, characterised in that the spray heads (23, 28) can travel in the horizontal and/or vertical direction (42) by way of drives (30) on a frame (20), and are received on a frame cross-piece (22, 27).
  4. Device according to Claim 1, characterised in that the articulated arms (31, 32) each comprise an articulated region (33) at which a first articulated arm portion (34) and a second articulated arm portion (35) are linked together, which arm portions can be leant against the exterior (8) of the filling inlet region (3, 5) and the outlet region (4, 5) of the truck mixing drum (2) which is to be cleaned.
  5. Device according to Claim 1, characterised in that the spray heads (23, 28) received on the articulated arms (31, 32) can be swivelled in a horizontal plane (41) as well as in a plane (37) extending perpendicular thereto.
  6. Device according to Claim 1, characterised in that received on a holding device (40) that covers the cleaning station (9) over the entire length of the truck mixing drum (2) is a spray conduit (45) which at the side facing the truck mixing drum (2) comprises spray heads (23).
  7. Device according to Claim 1, characterised in that associated with the cleaning station (9) is a metering device (50) for a separating medium that impedes caking of concrete, for discharge to the interior (7) of the filling inlet region (3, 5) and the outlet region (4, 6).
  8. Device according to Claim 1, characterised in that the articulated arms (31, 32) can be swivelled about the frame (20) and for cleaning the supply table (44) can be leant against the residual concrete washing unit (43).
  9. Device according to Claim 1, characterised in that the pressure level in the spray devices (14, 15, 23) can be controlled by control valves (59) which are associated with a high-pressure apparatus (54) or a connection to a local water supply (58).
EP04018237A 2003-08-07 2004-08-02 Apparatus for cleaning a mixing drum Not-in-force EP1504810B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10336261A DE10336261A1 (en) 2003-08-07 2003-08-07 Cleaning method for mixing drums and apparatus therefor
DE10336261 2003-08-07

Publications (2)

Publication Number Publication Date
EP1504810A1 EP1504810A1 (en) 2005-02-09
EP1504810B1 true EP1504810B1 (en) 2007-04-11

Family

ID=33547133

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Application Number Title Priority Date Filing Date
EP04018237A Not-in-force EP1504810B1 (en) 2003-08-07 2004-08-02 Apparatus for cleaning a mixing drum

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EP (1) EP1504810B1 (en)
AT (1) ATE359114T1 (en)
DE (2) DE10336261A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2265790B1 (en) * 2006-03-27 2007-12-01 Hormigones Uniland, S.L. "ADJUSTMENT DEVICE FOR THE PROPORTION OF WATER FROM A CONCRETE MASS CONTAINED IN THE CUBE OF A CONCRETE TRUCK AND CORRESPONDING CONCRETE MANUFACTURING PROCEDURE".
CN105880236B (en) * 2016-06-01 2019-05-03 福建南方路面机械有限公司 Multiple spot purging system and multiple spot cleaning method for concrete mixer
CN111674363A (en) * 2020-06-18 2020-09-18 中国重汽集团柳州运力专用汽车有限公司 Quick water-feeding anti-overflow device
DE202020107194U1 (en) * 2020-12-11 2022-03-15 Liebherr-Mischtechnik Gmbh Device for loading concrete mixers
CN113401598B (en) * 2021-06-28 2022-08-09 新兴栈(绵阳)建材有限公司 Feeding machine for concrete processing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786823A (en) * 1971-07-19 1974-01-22 R Wiley Truck wash apparatus
DE3318390A1 (en) * 1983-02-05 1984-08-09 Bauunternehmung und Betonwerke Lorenz Kesting GmbH & Co KG, 4670 Lünen Loading arrangement for ready-mixed concrete
US5244498A (en) * 1991-04-09 1993-09-14 W. R. Grace & Co. Of Canada Ltd. Concrete mixing drum cleaning method and apparatus
DE4226712A1 (en) * 1992-08-12 1994-02-17 Frank Ag Installation for manual cleaning of motor vehicles - has roofing supported by pillars fixed on baseplate and provided with control unit for selecting and operating different washing operations using at least one liquid supply
FR2700492B1 (en) * 1993-01-20 1995-04-07 Albert Bingler Concrete mixer fitted with a high pressure washing device.
CH686496A5 (en) * 1994-12-02 1996-04-15 Johannes Fitzi Cleaning equipment for concrete mixer
US5695280A (en) * 1995-07-28 1997-12-09 Ozinga Bros., Inc. Concrete stabilization system and method for utilizing same
US6418948B1 (en) * 1998-10-30 2002-07-16 Thomas G. Harmon Apparatus and method for removing concrete from interior surfaces of a concrete mixing drum
AUPS012302A0 (en) * 2002-01-25 2002-02-14 Campbell, William Ward Method and apparatus for the removal of concrete scale

Also Published As

Publication number Publication date
EP1504810A1 (en) 2005-02-09
ATE359114T1 (en) 2007-05-15
DE502004003447D1 (en) 2007-05-24
DE10336261A1 (en) 2005-03-10

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