WO2025003217A1 - Verfahren zum betreiben eines betonpumpensystems, betonpumpensystem, computerprogrammprodukt - Google Patents
Verfahren zum betreiben eines betonpumpensystems, betonpumpensystem, computerprogrammprodukt Download PDFInfo
- Publication number
- WO2025003217A1 WO2025003217A1 PCT/EP2024/067942 EP2024067942W WO2025003217A1 WO 2025003217 A1 WO2025003217 A1 WO 2025003217A1 EP 2024067942 W EP2024067942 W EP 2024067942W WO 2025003217 A1 WO2025003217 A1 WO 2025003217A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- concrete
- liquid concrete
- liquid
- concrete pump
- container
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4234—Charge or discharge systems therefor
- B28C5/4244—Discharging; Concrete conveyor means, chutes or spouts therefor
- B28C5/4258—Discharging; Concrete conveyor means, chutes or spouts therefor using pumps or transporting screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
- B28C7/161—Discharge means, e.g. with intermediate storage of fresh concrete with storage reservoirs for temporarily storing the fresh concrete; Charging or discharging devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
- B28C7/162—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure
- B28C7/163—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure using a pump
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
Definitions
- the invention relates to a method for operating a concrete pumping system, a concrete pumping system and a computer program product.
- the application area of concrete pumps is increasingly extending to the production of concrete structures using 3D printing, i.e. without the shape of the concrete structure being predetermined by formwork.
- the liquid concrete is pumped in such a way that it emerges in the form of a strand with a predetermined cross-section at the outlet end of a delivery line.
- the liquid concrete has a consistency such that the cross-section of the strand is retained when the strand is placed on a surface.
- Liquid concrete that meets these requirements has a lower flowability than conventional liquid concrete.
- liquid concrete is introduced from a liquid concrete supply into a pre-filling container of the concrete pump.
- the liquid concrete is sucked out of the pre-filling container using a pumping device and conveyed along a conveying line so that the liquid concrete exits at a distal end of the conveying line.
- the concrete pump is equipped with a control unit.
- the control unit is supplied with a measured value via a state variable of the concrete pump.
- the measured value is processed in the control unit in order to generate a control signal on the basis of which the volume flow of the liquid concrete passing from the liquid concrete supply into the pre-filling container is adjusted.
- the instruction to the operator of the liquid concrete supply can essentially be limited to always adding enough liquid concrete to ensure that the pre-filling tank is well filled.
- a high level of tolerance can be granted for the implementation of this instruction without affecting the operation of the concrete pump.
- the invention has recognized that it is helpful for less flowable liquid concrete, such as that used in 3D printing applications, to feed liquid concrete to the pre-filling container.
- the invention proposes processing a measured value via a state variable of the concrete pump in order to adjust the volume flow of liquid concrete entering the pre-filling container. By processing the measured value for the purpose of generating a control signal and by varying the amount of liquid concrete that is fed to the pre-filling container depending on the control signal, the volume flow can be adjusted at any time to suit the operating state of the concrete pump.
- the concrete pump and the liquid concrete supply are separate units.
- the concrete pump can be a component of a concrete pump vehicle and the liquid concrete supply can be arranged on a separate concrete mixer vehicle.
- integrated devices such as those known from DE 10 2008 017 123 A1
- the liquid concrete supply and the concrete pump form a unit within a common vehicle
- the invention has recognized that a measured value via a state variable of the concrete pump can nevertheless be used sensibly to improve the interaction between the components of the system according to the invention.
- the concrete pump system can comprise a first operating state in which the concrete pump conveys liquid concrete along the conveying line and in which liquid concrete passes from the liquid concrete supply to the pre-filling tank of the concrete pump.
- the concrete pump system can comprise a second operating state in which the concrete pump and the liquid concrete supply are spatially separated from one another in such a way that no liquid concrete can flow from the Liquid concrete supply can flow into the pre-filling tank.
- the concrete pump can be out of operation so that no liquid concrete is conveyed along the delivery line.
- the measured value can represent the fill level of the pre-filling container.
- the fill level of the pre-filling container can be measured directly using a fill level sensor. It is also possible to determine the fill level from other variables. For example, information about the fill level of the pre-filling container can be derived from a weight measurement. Alternatively, the fill level of the pre-filling container could be determined from the ratio between the amount fed to the pre-filling container and the amount pumped by the concrete pump.
- a signaling device is actuated with the control signal.
- the signaling device can be switched between different signal states with the control signal.
- the signaling device can be designed to emit a signal that can be perceived by a person. It can be an optical signal or an acoustic signal, for example.
- the method can be carried out in such a way that an operator changes the volume flow of liquid concrete that is fed to the pre-filling container based on the signal perceived by him.
- the signaling device can comprise a first signal state according to which the volume flow is kept unchanged.
- the signaling device can comprise a second signal state according to which the volume flow is reduced.
- the signaling device can comprise a third signal state, according to which the volume flow is increased.
- a fourth signal state can correspond to a strong reduction in the volume flow and a fifth signal state can correspond to a strong increase in the volume flow.
- control signal can be used to control a dosing device for the liquid concrete supply.
- the dosing device can be designed to adjust the volume flow of the liquid concrete passing from the liquid concrete supply into the pre-filling container.
- the control signal can be sent to the dosing device so that the state of the dosing device is changed by the control signal.
- the dosing device can form an actuator of a closed control loop with which the fill level of the pre-filling container is regulated to a setpoint.
- the dosing device can be an integral part of the system component used to provide the liquid concrete supply.
- the dosing device can be a mixer motor used to dispense the liquid concrete from a storage container of the truck mixer.
- the concrete pump and the system component that provides the liquid concrete supply are often units that are technically and organizationally separate from each other. It is therefore not always easy to create a suitable interface between the concrete pump and the relevant system component.
- a a buffer device can be arranged between a storage tank filled with liquid concrete and the pre-fill tank of the concrete pump.
- the buffer device can be designed such that it is only coupled to the storage container when required.
- the buffer device can then be used optionally with different storage containers, for example different truck mixers.
- the buffer device can be designed to provide a liquid concrete supply with which the pre-filling container is fed.
- the dosing device can be designed to adjust the volume flow of the liquid concrete flowing from the buffer device into the pre-filling container.
- a direct interface between the concrete pump and the storage container from which the buffer device is fed can then be dispensed with. It is only necessary to position the buffer device appropriately in relation to the storage container so that the liquid concrete can flow from the liquid concrete supply to the buffer device.
- the buffer device can be mechanically coupled to the storage container for this purpose.
- the buffer device can be designed as a chute.
- the chute can have a support surface which supports the liquid concrete coming from the liquid concrete supply.
- the support surface can be inclined so that the liquid concrete moves under the influence of gravity from an inlet end to an outlet end of the chute.
- the outlet end of the chute can be arranged above the pre-filling container so that liquid concrete emerging from the chute can be fed into the pre-filling container.
- the dosing device can be arranged at the outlet end of the chute.
- the chute can be designed, for example, as a channel or as a pipe.
- the volume flow that flows from the liquid concrete storage container into the buffer device can be adjusted depending on the fill level of the buffer device.
- the buffer device can be equipped with a fill level sensor.
- the measured value of the fill level sensor can be processed to generate a second control signal.
- the volume flow of liquid concrete that flows from the liquid concrete storage container to the buffer device can be varied depending on the second control signal.
- the second control signal can be used to control a signaling device with which an operator can adjust the volume flow flowing to the buffer device.
- the storage container filled with liquid concrete to comprise a second dosing device with which the volume flow flowing to the buffer device can be adjusted.
- the second dosing device can be controlled with the second control signal. No manual intervention is then required to ensure that the buffer device is always well filled with liquid concrete.
- the concrete pump can be designed to produce concrete structures by means of 3D printing.
- a metering pump can be arranged in the delivery line of the concrete pump.
- An outlet end of the delivery line can be designed as a pressure head.
- the pressure head can be designed in such a way that the liquid concrete emerges from the pressure head as a strand with a predetermined cross-section.
- the metering pump can be set up in such a way that a uniform volume flow of liquid concrete passes through the pressure head.
- the concrete pump can include a positioning system with which the pressure head can be moved along predetermined paths.
- a dosing pump arranged in the delivery line is often designed in such a way that only grains of a limited size can pass through. It is therefore advantageous if liquid concrete with a small grain size is used.
- the liquid concrete fed to the pre-filling container can be sieved in order to filter out unacceptably large grains or foreign bodies from the liquid concrete.
- the liquid concrete is sieved before entering the pre-filling container.
- the pre-filling container can have an upper edge which is designed in such a way that a sieve can be placed on the edge.
- the sieve can be vibrated while the liquid concrete passes through the sieve.
- the concrete pump can comprise a vibrating drive which drives the movement of the sieve.
- the control unit of the concrete pump can be designed to control the interaction of the components when carrying out the method according to the invention.
- the control unit can be designed to determine the first control signal, based on which the volume flow of liquid concrete passing from the liquid concrete supply into the pre-filling container is set.
- the control unit can process measured values that represent the fill level of the pre-filling container.
- control unit can process status data of the pumping device.
- the status data can relate to the volume flow conveyed by the pumping device and/or to the pressure with which the liquid concrete is conveyed into the delivery line.
- the current The operating condition of the pumping device is one of the parameters on which it depends how much liquid concrete should be fed into the pre-filling tank.
- control unit can process flow data from a current or upcoming 3D printing process.
- a print head arranged at a distal end of the delivery line is moved in such a way that the emerging strand of liquid concrete is deposited in predetermined positions so that the desired concrete structure is built up from the concrete layers according to a predetermined plan.
- the associated flow data contains information about how much liquid concrete will be needed in the near future. This information is useful because a certain amount of time passes before the liquid concrete flowing from the liquid concrete supply into the pre-filling container reaches the delivery line.
- the first control signal can, for example, be designed so that the pre-filling container is almost empty when the 3D printing process is finished.
- the control unit can additionally or alternatively be designed to generate the second control signal, on the basis of which the volume flow passing from the storage container into the buffer device is set.
- the control unit can process measured values that represent the fill level of the pre-fill container, process measured values that represent the fill level of the buffer device, process status data of the pumping device of the concrete pump and/or process sequence data of a current or upcoming 3D printing process.
- the control unit can be designed to process a target value for the fill level of the pre-filling container in order to generate the control signal on the basis of which the volume flow of the liquid concrete passing from the liquid concrete supply into the pre-filling container is set.
- the control unit can carry out a comparison between an actual value of the fill level and the target value and derive the control signal on the basis of which the volume flow entering the pre-filling container is set from the difference between the actual value and the target value.
- the setpoint for the level may be a constant setpoint that remains unchanged during a 3D printing operation.
- the setpoint may remain unchanged while a concrete layer of a 3D printing operation is being produced.
- Creating a concrete layer is the process of adding a continuous line of liquid concrete emerging from the conveyor line to the concrete structure being produced.
- An essential finding of the invention is that it can be advantageous if the setpoint value for the fill level of the pre-filling container is varied within a period of time within which a single concrete layer of a 3D printing process is produced. It has been found that if the setpoint value for the fill level remains unchanged, there is a risk that parts of the liquid concrete will assume a static state and will not be included in the flow of the volume flow coming from the liquid concrete supply into the pumping device. This can particularly be the parts of the liquid concrete that are located in an upper section of the pre-filling container and close to the edge of the pre-filling container. If the fill level of the pre-filling container is lowered, a depression forms in the middle of the pre-filling container into which the
- Liquid concrete slides from the edge. This prevents Components of the liquid concrete remain in the pre-filling container for too long.
- the method can be carried out in such a way that, during the production of an individual concrete layer of a 3D printing process, a first target value for the fill level and a different second target value for the fill level are specified.
- the first target value can be higher than the second target value.
- the first target value can be applied at the beginning of a printing process.
- the second target value can be applied for a middle phase of a printing process.
- the volume flow passing from the liquid concrete supply into the pre-filling container can be set such that it is smaller than the volume flow sucked out of the pre-filling container by the pump device.
- the first target value can be at least 10%, preferably at least 20%, more preferably at least 50% higher than the second target value.
- a third setpoint can be specified which is higher than the second setpoint, whereby the ratio can be the same as that specified for the first setpoint.
- the third setpoint can be applied subsequently to the second setpoint. After a change from the second setpoint to the third setpoint, the volume flow passing from the liquid concrete supply into the pre-filling tank can be adjusted so that it is greater than the volume flow sucked in from the pre-filling tank by the pumping device.
- the method can be carried out in such a way that during the production of a single concrete layer of a 3D printing process, the filling level of the pre-filling container is initially high according to a first setpoint, then a second set point to a lower value and then rises again to a higher value according to a third set point.
- a sequence involving a change between a higher fill level and a lower fill level can be repeated once or several times during a single printing operation.
- the fill level of the pre-fill tank may be low. It is easier to keep the liquid concrete remaining in the pre-fill tank moving during a printing break if the amount of liquid concrete is small.
- the information about when a printing process will end can be provided to the control unit from the 3D printing process's execution data.
- the liquid concrete supply can be arranged in a storage container that is part of a truck mixer.
- a truck mixer is a truck that is loaded with liquid concrete.
- the truck mixer can be equipped with a drive element with which the volume flow of the liquid concrete coming out of the liquid concrete supply can be adjusted.
- the liquid concrete supply can be arranged in a stationary storage container, such as a silo. The liquid concrete that flows from the storage container into the pre-filling container can fall into the pre-filling container under the influence of gravity.
- the invention also relates to a concrete pump system with a concrete pump and a liquid concrete supply.
- liquid concrete is introduced from the liquid concrete supply into a pre-filling container of the concrete pump.
- the concrete pump comprises a pumping device for sucking liquid concrete from the pre-filling container and conveying it along a conveying line so that the liquid concrete exits at a distal end of the conveying line.
- the concrete pump is provided with a control unit, wherein the control unit is designed to process a measured value via a state variable of the concrete pump in order to generate a control signal by means of which the volume flow of the liquid concrete passing from the liquid concrete supply into the pre-filling container is adjusted.
- the disclosure includes further developments of the method with features that are described in connection with the concrete pump system according to the invention.
- the disclosure includes further developments of the concrete pump system with features that are described in connection with the method according to the invention.
- the invention also relates to a computer program product or a set of computer program products comprising program parts which, when loaded into a computer or into interconnected computers connected to a device according to the invention, are designed to carry out the method according to the invention.
- Fig. 1 a concrete pump vehicle with a boom arm in the folded state
- Fig. 2 the concrete pump vehicle from Fig. 1 with the boom arm unfolded;
- Fig. 3 a schematic representation of components of a concrete pump according to the invention
- Fig. 4 Elements from Fig. 3 in greater detail
- Fig. 5 a truck mixer of a concrete pump system according to the invention
- Fig. 6 a schematic representation of the functioning of a concrete pump system according to the invention
- Fig . 7 a representation of the time course of the
- Fig. 8 the view according to Fig. 6 in an alternative
- Fig. 9 Components of a concrete pump according to the invention
- Fig. 10, 11 the view according to Fig. 6 in an alternative embodiment of the invention.
- a truck 14 shown in Fig. 1 forms a concrete pump system according to the invention together with a truck mixer 40 shown in Fig. 5.
- the truck mixer 40 carries a storage container 41 on its loading area, which can be set in rotation by a mixer motor 42.
- the storage container 41 is filled with liquid concrete and, in one embodiment, forms a liquid concrete supply in the sense of the invention. By varying the direction of rotation and the rotational speed of the storage container 41, the volume flow of liquid concrete that exits the storage container 41 via a discharge channel 33 can be adjusted.
- the truck mixer 40 and the truck 14 are positioned relative to each other in such a way that the liquid concrete is filled from the discharge chute 33 of the truck mixer 40 into a pre-filling container 16 of the truck 14.
- the discharge chute 33 is arranged above the pre-filling container 16 so that the liquid concrete falls from the discharge chute 33 into the pre-filling container 16 under the influence of gravity.
- a sieve 35 rests on the upper edge 34 of the pre-filling container 16, which is equipped with a vibrating drive 38. The liquid concrete falling from the discharge chute 33 hits the sieve 35 and passes through the sieve 35, while impermissibly large grain sizes or foreign bodies are sieved out.
- the sieve 35 is designed in such a way that only grain sizes for which the metering pump 36 is suitable can pass through.
- the sieve can be designed in such a way that only grains up to a size of 8 can pass through.
- the liquid concrete in the pre-fill container 16 is therefore less coarse-grained than conventional liquid concrete, which can, for example, contain grains up to a size of 32.
- the truck 14 is equipped with a concrete pump 15 which conveys liquid concrete from the pre-fill container 16 through a conveying line 17.
- the conveying line 17 extends along a boom arm 18 which is rotatably mounted on a slewing ring 19.
- the boom arm 18 comprises three boom arm segments 20, 21, 22 which are connected to one another in an articulated manner. By pivoting the boom arm segments 20, 21, 22 relative to one another via the joints, the boom arm 18 can be moved between a folded state (Fig. 1) and an unfolded state (Fig. 2).
- the conveying line 17 extends beyond the distal end of the third boom arm segment 22 so that the liquid concrete can be applied in an area remote from the concrete pump 15.
- the concrete pump 15 is designed for 3D printing so that a mold can be built directly with the concrete emerging from the delivery line 17 without the need for formwork.
- the concrete pump 15 comprises, as shown in Fig. 3, a metering pump 36 with which the liquid concrete is conveyed so that it emerges from the delivery line 17 as a continuous strand.
- the distal end of the delivery line 17 is formed by a print head 37 from which the strand emerges with a predetermined cross-sectional profile. With a point (not shown), positioning system, the print head 37 can be moved along predetermined paths in order to lay down the strand as a concrete layer along a route predetermined by a plan.
- the concrete pump 15 comprises a pumping device 29 which is designed as a double-piston pump.
- the pumping device 29 comprises a first delivery cylinder and a second delivery cylinder 32 which suck in liquid concrete from the pre-fill container 16 in an alternating cycle and deliver it along the delivery line 17.
- the pumping device 29 is equipped with an S-pipe 30 which, in a first switching state, establishes a connection between the first delivery cylinder and an inlet of the delivery line 17 and which, in a second switching state, establishes a connection between the second delivery cylinder and the inlet of the delivery line 17.
- Liquid concrete delivered by the pumping device 29 through the S-pipe enters the delivery line 17 and is moved from the proximal to the distal end of the delivery line 17.
- the pump device 29, which according to Fig. 6 comprises the feed cylinders 45 and a pump drive 46, is operated in a closed control loop with the aim of keeping the pressure of the liquid concrete 43 at the inlet of the metering pump 36 at a constant value.
- a measured value of the pressure of the liquid concrete 43 at the inlet of the metering pump 36 obtained with a pressure sensor 48, is fed to a control unit 44 of the concrete pump system, and the pump drive 46 is controlled via a pump control 47 in such a way that the power of the pump drive 46 is increased in order to counteract a reduction in the pressure at the metering pump 36, and vice versa.
- a working cycle of the pumping device 29 comprises the steps that in a state in which the S-pipe 30 forms a connection between the first delivery cylinder and the delivery line 17, the first delivery cylinder with a forward movement Liquid concrete is conveyed from the interior of the first conveying cylinder into the S-pipe 30.
- the second conveying cylinder sucks liquid concrete from the pre-filling container 16 with a backward movement.
- the S-pipe 30 is switched over via a shaft 39 into a second switching state in which the S-pipe 30 forms a connection between the second conveying cylinder and the conveying line 17.
- the second conveying cylinder conveys liquid concrete into the S-pipe 30 with a forward movement, while the first conveying cylinder sucks liquid concrete from the pre-filling container 16.
- a flow chart is stored in a memory module 49, which specifies the sequence of the 3D printing process.
- the information from the flow chart is fed to the control unit 44 via a first data input 50.
- the control unit 44 receives the target speed at which the printing process should run, i.e. at which the print head 37 should be moved while the concrete strand emerges.
- the control unit 44 controls a drive 52 of the inline pump 36 and thus specifies the speed at which the concrete strand emerges from the print head 37.
- the control unit 44 uses this information to determine a target value 53 for the fill level of the pre-filling container 16 of the concrete pump 15. As explained in more detail with reference to Fig. 7, the target value 53 for the fill level of the pre-filling container 16 varies over time. Three operating phases 54, 55, 56 are shown. In the first operating phase 54, a first layer of concrete is applied; in the second operating phase 55, no concrete emerges from the pressure head 37; in the third operating phase 56, a second layer of concrete is applied. The amount of liquid concrete emerging from the pressure head 37 is indicated by a first curve 57. A second curve shows the volume flow 58 which passes from the truck mixer 40 into the pre-filling tank 16 of the concrete pump 15.
- the volume flow 58 is high before the start of the first operating phase 54, with the result that the fill level 59 of the pre-filling tank 16 rises and reaches a maximum at the start of the first operating phase 54 which corresponds to a first target value 53 for the fill level 59.
- the pumping device 29 of the concrete pump 15 is started so that liquid concrete is sucked in from the pre-filling tank 16, while at the same time the volume flow from the liquid concrete supply 41 drops to zero. This leads to a falling fill level 59 of the pre-filling tank 16, which reaches a minimum shortly before the halfway point of the first operating phase 54. The minimum corresponds to a second target value 53 for the fill level 59 of the pre-filling container 16.
- the target value 53 is set again to a higher value so that a high volume flow 58 of liquid concrete is again supplied to the pre-filling container 16 and the fill level 59 rises again to a maximum which forms a third target value in the sense of the invention.
- the volume flow 58 drops back to zero and the fill level 59 drops again to a minimum value until the end of the first operating phase.
- the fill level of the pre-fill container 16 is determined by a fill level sensor 60, the measured values of which are fed to a differential element 61, with which the difference between the measured value and the target value 53 is determined. Based on the difference, a fill level controller 62 controls a signaling device 63, so that the signaling device 63 indicates whether the volume flow 58 for the pre-fill container 16 should be increased, should remain constant or should be reduced.
- the fill level controller 62 which is shown as a separate block in Fig. 6 for the sake of clarity, forms an element of the control unit 44.
- the driver 64 of the truck mixer 40 controls based on the signal shown by the signaling device 63, the mixer motor 42 of the storage container 41 is activated so that it releases more or less liquid concrete 43 and the volume flow 58 entering the pre-filling container 16 increases or decreases accordingly.
- the drainage channel 33 can be provided with a dosing device in order to be able to additionally influence the volume flow in the direction of the pre-filling container 16.
- Fig. 8 shows an alternative embodiment in which a signal transmitter 65 is connected to the fill level controller 62, which directly controls the mixer motor 42 of the storage container 41 of the truck mixer 40.
- This requires an interface between the control unit 44 of the concrete pump 15 and the truck mixer 40, via which control signals can be transmitted while the truck mixer 40 and the concrete pump 15 are operated as a concrete pump system according to the invention.
- the direct signal path between the signal transmitter 65 and the truck mixer 40 makes it possible to avoid inaccuracies that can result, for example, from a lack of attention on the part of the driver of the truck mixer 40.
- a chute 66 is arranged between the drainage channel 33 of the truck mixer 40 and the pre-fill container 16 of the concrete pump 15, which forms a buffer device in the sense of the invention.
- the chute 66 is provided with an outlet flap 67, the position of which can be changed with a stepper motor 68. Depending on the position of the outlet flap 67, the volume flow of liquid concrete that flows into the pre-fill container 16 changes.
- the chute 66 comprises a sensor 70 with which the fill level of the chute 66 is determined.
- the chute 66 is filled with liquid concrete using the drainage channel 33 of the truck mixer 40. According to Fig.
- the fill level controller 62 controls the stepper motor 68 of the outlet flap 67 of the chute 66 in order to adjust the volume flow 58 of the liquid concrete entering the pre-fill container 16.
- the regulation of the volume flow 58 via a chute 66 specially adapted to the requirements of the concrete pump system according to the invention enables greater precision in adjusting the volume flow than a procedure that depends on the accuracy of a dosing device of the truck mixer 40.
- a mixer controller 69 processes the difference between a fill level of the chute 66 determined by the sensor 70 and a setpoint value for the fill level received from the control unit 44 in order to control the mixer motor 42 of the storage container 41 of the truck mixer 40. In this way, it can be ensured that there is always sufficient liquid concrete 43 in the chute 66 in order to be able to provide the desired volume flow 58 in the direction of the pre-fill container 16.
- Fig. 11 corresponds to Fig. 10 with the difference that the mixer motor 42 is not controlled directly, but that the driver 64 of the truck mixer 40 receives a signal according to which he manually adjusts the volume flow exiting the truck mixer 40.
- This enables the use of conventional truck mixers 40 in a concrete pump system according to the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023116960.2 | 2023-06-27 | ||
| DE102023116960.2A DE102023116960A1 (de) | 2023-06-27 | 2023-06-27 | Verfahren zum Betreiben eines Betonpumpensystems, Betonpumpensystem, Computerprogrammprodukt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025003217A1 true WO2025003217A1 (de) | 2025-01-02 |
Family
ID=91759500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/067942 Ceased WO2025003217A1 (de) | 2023-06-27 | 2024-06-26 | Verfahren zum betreiben eines betonpumpensystems, betonpumpensystem, computerprogrammprodukt |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102023116960A1 (de) |
| WO (1) | WO2025003217A1 (de) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59161561A (ja) * | 1983-03-04 | 1984-09-12 | 新明和工業株式会社 | コンクリートミキサ車とコンクリートポンプ車との連係方法及び装置 |
| JPS6078055A (ja) * | 1983-10-03 | 1985-05-02 | 株式会社新潟鐵工所 | コンクリ−トポンプ用ホツパの生コンレベル制御方法 |
| JP2002206343A (ja) * | 2001-01-12 | 2002-07-26 | Mitsubishi Heavy Ind Ltd | コンクリートポンプ車、ミキサー車及びミキサー車用制御ユニット |
| DE102008017123A1 (de) | 2008-04-02 | 2009-11-26 | Putzmeister Concrete Pumps Gmbh | Mischerpumpe für Flüssigbeton sowie Verfahren zu deren Betrieb |
| CN102581959A (zh) * | 2012-02-29 | 2012-07-18 | 三一重工股份有限公司 | 一种搅拌车卸料速度控制系统及方法 |
| JP2018199940A (ja) * | 2017-05-26 | 2018-12-20 | 大成建設株式会社 | 積層構造物の施工方法、積層構造物および積層構造物施工装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004015422A1 (de) * | 2004-03-26 | 2005-10-13 | Putzmeister Ag | Anlage und Verfahren zur Herstellung von Betonfertigteilen |
| DE102013018606B4 (de) * | 2013-11-07 | 2019-07-11 | Schwing Gmbh | 1 - Dickstoffpumpe mit Fördereinheit und Zuführeinheit |
| DE102019108781A1 (de) * | 2019-04-03 | 2020-10-08 | Peri Gmbh | Computergestütztes Verfahren und Einrichtung zur optimierten Steuerung der Förderleistung einer Betonpumpe oder dergleichen |
| DE102019109083A1 (de) * | 2019-04-07 | 2020-10-08 | Putzmeister Engineering Gmbh | Verfahren zur Steuerung einer Dickstoffpumpe und Dickstoffpumpe |
| DE102021121046A1 (de) * | 2021-08-12 | 2023-02-16 | Wilhelm Tölke GmbH & Co KG | Vorrichtung und Verfahren zur Herstellung von Bauwerken oder Objekten aus eingefärbtem Beton |
-
2023
- 2023-06-27 DE DE102023116960.2A patent/DE102023116960A1/de active Pending
-
2024
- 2024-06-26 WO PCT/EP2024/067942 patent/WO2025003217A1/de not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59161561A (ja) * | 1983-03-04 | 1984-09-12 | 新明和工業株式会社 | コンクリートミキサ車とコンクリートポンプ車との連係方法及び装置 |
| JPS6078055A (ja) * | 1983-10-03 | 1985-05-02 | 株式会社新潟鐵工所 | コンクリ−トポンプ用ホツパの生コンレベル制御方法 |
| JP2002206343A (ja) * | 2001-01-12 | 2002-07-26 | Mitsubishi Heavy Ind Ltd | コンクリートポンプ車、ミキサー車及びミキサー車用制御ユニット |
| DE102008017123A1 (de) | 2008-04-02 | 2009-11-26 | Putzmeister Concrete Pumps Gmbh | Mischerpumpe für Flüssigbeton sowie Verfahren zu deren Betrieb |
| CN102581959A (zh) * | 2012-02-29 | 2012-07-18 | 三一重工股份有限公司 | 一种搅拌车卸料速度控制系统及方法 |
| JP2018199940A (ja) * | 2017-05-26 | 2018-12-20 | 大成建設株式会社 | 積層構造物の施工方法、積層構造物および積層構造物施工装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102023116960A1 (de) | 2025-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69104367T2 (de) | Ausgabeverfahren und -vorrichtung, insbesondere für dichtungs-/klebemittel. | |
| EP0739704B1 (de) | Vorrichtung zum Herstellen eines Objektes mittels Stereolithographie | |
| DE102017213546B4 (de) | 3d-formvorrichtung und 3d-formverfahren | |
| DE69826804T2 (de) | Flüssigkeitsverteilvorrichtung und Verfahren | |
| WO2007059743A1 (de) | Verfahren und vorrichtung zum flächigen auftragen von fliessfähigem material | |
| DE60123243T2 (de) | Leimverfahren und maschine | |
| EP3014993A1 (de) | System zur steuerung der verteilung von landwirtschaftlichem gut | |
| WO2016173981A1 (de) | Verfahren zur regelung einer kraftstoffförderpumpe | |
| DE102010055019A1 (de) | Vorrichtung zum intermittierenden Auftragen eines flüssigen bis pastösen Mediums auf eine Auftragfläche | |
| WO2025003217A1 (de) | Verfahren zum betreiben eines betonpumpensystems, betonpumpensystem, computerprogrammprodukt | |
| DE4417083A1 (de) | Beschichtungsvorrichtung, insbesondere für eine Einrichtung zum stereolithographischen Bilden eines dreidimensionalen Objekts | |
| EP1990104B1 (de) | Verfahren und Vorrichtung zum gleichzeitigen Reinigen mehrerer Rohrleitungen oder Rohrleitungssysteme | |
| DE102006040219A1 (de) | Verfahren und Vorrichtung zum Polieren mit einem Fluid | |
| EP2801462B1 (de) | Verfahren und Vorrichtung zur gesteuerten Entnahme von flüssigen Materialien aus mehreren Vorlagebehältern | |
| DE4041727C2 (de) | ||
| DE2701508B2 (de) | Verfahren zur Regelung des Mischungsverhältnisses einer zu fördernden Mischung aus körnigem oder pulverförmiger! Trockengut und einer Flüssigkeit und Vorrichtung zur Durchführung des Verfahrens | |
| DE102022115177A1 (de) | Verfahren und vorrichtung zum kontinuierlichen versorgen einer dosiereinrichtung | |
| EP0756559B1 (de) | Verfahren zum justieren eines füllstrahles | |
| DE19902567A1 (de) | Vorrichtung zum Zuführen von Lack | |
| EP3207805A1 (de) | Abfüllen von lebensmitteln mit festem und flüssigem anteil | |
| EP0924149A2 (de) | Verfahren zum hydraulischen Fördern eines Schüttgutes | |
| DE202011100757U1 (de) | Pumpe zum Fördern von fluidem Material aus Materialbehältern | |
| DE102011006735A1 (de) | Vorrichtung und Verfahren zur Förderung von Schüttgut | |
| WO2025003216A1 (de) | Betonpumpe | |
| DE102023114151A1 (de) | Anordnung zur zufuhr eines reaktiven, selbst härtenden kunststoffgemischs zu einer mit unterdruck beaufschlagbaren form für ein composite-bauteil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24737704 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024737704 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2024737704 Country of ref document: EP Effective date: 20260127 |
|
| ENP | Entry into the national phase |
Ref document number: 2024737704 Country of ref document: EP Effective date: 20260127 |