Method for operating a construction and / or viscous material pumping system for conveying construction and / or viscous material and construction and / or viscous material pumping system for conveying construction and / or viscous material

Abstract

The invention relates to a method for operating a construction and / or viscous material pumping system (1) for conveying construction and / or viscous material (BDS), - comprising the construction and / or slurry pumping system (1): - at least one conveying cylinder (2a, 2b), wherein the conveying cylinder (2a, 2b) is designed for receiving and discharging construction and / or thick material (CDF), and - at least one conveying piston (3a, 3b), wherein the conveying piston (3a, 3b) is movably arranged in the conveying cylinder (2a, 2b) for drawing construction material and / or viscous material (BDS) into the conveying cylinder (2a, 2b) and for displacing drawn-in construction material and / or viscous material (BDS) out of the conveying cylinder (2a, 2b), and - the procedure includes the following steps: a) Conveying of construction and / or viscous material (BDS) by moving the conveying piston (3a, 3b) to draw in and displace construction and / or viscous material (BDS), b) Recording a time course (zV) of a pressure quantity (pG) characteristic of a pressure (p) acting on construction and / or viscous material (BDS) in the conveying cylinder (2a, 2b) during a movement stroke (vBH) of the conveying piston (3a, 3b) for displacing construction and / or viscous material (BDS), c) Determining, in particular recording, a time duration (ZDBH) of a, in particular the, movement stroke (ZvBH) of the conveying piston (3a, 3b) for displacing construction and / or thick material (BDS), d) Determining at least one movement parameter (BG) to control a subsequent movement stroke (nBH) of the conveying piston (3a, 3b) for displacing construction material and / or thick material (BDS) by linking the recorded progression (zV) and the determined time duration (ZDBH) together, and e) Controlling the subsequent movement stroke (nBH) according to the specified movement size (BG).

Description

FIELD OF APPLICATION AND STATE OF THE ART

[0001] The invention relates to a method for operating a construction and / or thick matter pump system for conveying construction and / or thick matter and a construction and / or thick matter pump system for conveying construction and / or thick matter. TASK AND SOLUTION

[0002] The object of the invention is to provide a method for operating a construction and / or slurry pump system for conveying construction and / or slurry and a construction and / or slurry pump system for conveying construction and / or slurry, which have improved properties.

[0003] The invention solves this problem by providing a method and a construction and / or slurry pumping system as described in the independent claims. Advantageous developments and / or refinements of the invention are described in the dependent claims.

[0004] The method according to the invention is for operating a construction and / or slurry pump system for conveying construction and / or slurry. The construction and / or slurry pump system has at least one conveying cylinder and at least one conveying piston. The conveying cylinder is designed to receive and discharge, in particular received, construction and / or slurry. The conveying piston is movably arranged and in particular designed in the conveying cylinder to suck construction and / or slurry into the conveying cylinder and to displace sucked-in construction and / or slurry out of the conveying cylinder. The method has the steps: a) conveying construction and / or slurry by moving, in particular cyclically moving, the conveying piston for sucking in and displacing construction and / or slurry.b) Recording a temporal progression of a pressure variable indicative of a pressure acting on building and / or thick material in the delivery cylinder during a movement stroke of the delivery piston for displacing building and / or thick material. c) Determining, in particular recording, a time duration of a, in particular the, movement stroke of the delivery piston for displacing building and / or thick material. d) Determining at least one movement variable for controlling a, in particular temporally, subsequent movement stroke of the delivery piston for displacing building and / or thick material by linking the recorded progression and the determined time duration. e) Controlling the subsequent movement stroke according to the determined movement variable.

[0005] The linking enables adaptive and therefore optimal operation of the construction and / or thick matter pumping system. In particular, this can enable adaptive and therefore optimal pumping of construction and / or thick matter using the construction and / or thick matter pumping system. In other words: This makes it possible to take into account deviations or changes from the ideal pumping process, such as those that occur with different types of construction and / or thick matter with different pumping and suction behavior. The use of time profiles, and in particular the duration, makes this possible regardless of the type or kind of sensor and thus allows retrofitting of the construction and / or thick matter pumping system, particularly in the field. In particular, the linking enables a reduction in wear, energy consumption and / or noise emissions during work phases.

[0006] In particular, the method, operation, conveyance, receiving, dispensing, suction, displacement, movement, detection, detection, determination, control and / or linking can be automatic and / or computer-implemented.

[0007] The building material can be mortar, cement, screed, concrete, and / or plaster. Additionally or alternatively, thick sludge can be used.

[0008] The construction and / or slurry pumping system may be a concrete pumping system and / or mobile, in particular a car construction and / or slurry pumping system.

[0009] The term “comprises” or “has” can be used synonymously with the term “comprises”.

[0010] The term “configured,” “established,” or “intended” can be used synonymously with the term “trained.”

[0011] The pressure size, the pressure, the duration and / or the movement size can have a value and / or be variable, in particular continuously variable.

[0012] The history can assign different values ​​of the pressure size to different points in time.

[0013] The pressure variable can be the pressure, in particular in the form of a drive and / or high pressure, acting on the delivery piston.

[0014] The term “measurement” can be used synonymously with the term “capture”.

[0015] The term “representative” can be used synonymously with the term “characteristic”.

[0016] The term “displacement stroke” can be used synonymously for the phrase “movement stroke of the delivery piston for displacing building and / or thick material”.

[0017] The movement stroke can be from one end position of the delivery piston or a stroke end point, in particular a suction end point, to another or different end position of the delivery piston or another or different stroke end point, in particular a displacement end point, and / or completely. In particular, the term "direction reversal end point" can be used synonymously with the term "stroke end point." Additionally or alternatively, the term "position" can be used synonymously with the term "point."

[0018] The term “adapt” can be used synonymously with the term “determine”.

[0019] The course and the duration can be linked, especially mathematically, in an unprocessed or processed manner.

[0020] The term “correlating” or “merging” can be used synonymously with the term “linking”.

[0021] Controlling can be steering and / or does not need to be regulating.

[0022] Step a) can be carried out permanently.

[0023] Step b) can be carried out at the same time as step a) and / or repeatedly and / or by means of a pressure sensor device.

[0024] Step c) can be carried out after and / or with step a) and / or step b) and / or repeatedly and / or by means of an investigation device.

[0025] Step d) can be carried out after step b) and step c) and / or repeatedly and / or by means of a determining device.

[0026] Furthermore, or alternatively, step e) can be carried out after step d) and / or repeatedly and / or by means of a control device.

[0027] The term “take place” can be used synonymously with the phrase “be carried out”.

[0028] In a further development of the invention, the method comprises the steps chronologically after step b) and chronologically before step c): determining at least one intermediate movement variable for controlling a, in particular chronologically subsequent, intermediate movement stroke of the delivery piston for displacing building and / or thick material based on the detected profile. Controlling the subsequent intermediate movement stroke in accordance with the determined intermediate movement variable. Step c) comprises: determining the duration of the intermediate movement stroke. In particular, step d) comprises: determining the movement variable by linking the determined intermediate movement variable and the determined duration. This enables adaptation based firstly on the profile and secondly on the duration. In particular, the formulation "dependent on" can be used synonymously for the formulation "based on".Additionally or alternatively, the intermediate movement quantity may have a value.

[0029] In one development of the invention, at least the movement variable is a temporal movement variable profile. Additionally or alternatively, at least the intermediate movement variable is a temporal intermediate movement variable profile. This enables particularly good adaptive and thus optimal operation of the construction and / or slurry pumping system. In particular, this can enable particularly good adaptive and thus optimal pumping of construction and / or slurry by means of the construction and / or slurry pumping system. In particular, the movement variable profile can assign different values ​​of the movement variable to different points in time and / or the intermediate movement variable profile can assign different values ​​of the intermediate movement variable to different points in time.

[0030] In a further development of the invention, determining at least the movement quantity is carried out to reduce or avoid a deviation, in particular of the determined time period, from a predetermined time period and / or a predetermined delivery rate. In particular, step d) comprises determining the movement quantity profile by, in particular, either compressing or stretching the intermediate movement quantity profile.

[0031] This enables the specified time period and / or the specified delivery rate to be achieved or maintained. In particular, the term “difference” can be used synonymously with the term “deviation”. Additionally or alternatively, the deviation, the time period and / or the delivery rate can have a value. Further additionally or alternatively, the time period and / or the delivery rate can be specified by the user or operator, in particular by means of a user-operable control element of the construction and / or slurry pump system. Further additionally or alternatively, the term “delivery volume flow” can be used synonymously with the term “delivery rate”. Further additionally or alternatively, a delivery rate of the movement stroke and / or the intermediate movement stroke can be determined, in particular recorded, and the deviation can be a deviation of the determined delivery rate from the specified delivery rate.Further additionally or alternatively, the compression and / or stretching can be in a time direction.

[0032] In a further development, in particular an embodiment, of the invention, the determining comprises determining a deviation, in particular from an average pressure value, in particular a peak or a dip, in particular of the pressure value or an increase or a decrease in the pressure value, in the detected curve and is carried out to reduce or avoid the deviation. This makes it possible to achieve a uniform temporal course of the pressure value, in particular a constancy of the pressure value over the movement stroke and / or the intermediate movement stroke. In other words: This makes it possible to reduce or avoid a pressure surge, in particular caused by the pushing or compacting of construction and / or thick material by the delivery piston, and thus a low-excitation and / or low-stress and thus low-wear, gentle, smooth and / or quiet operation of the construction and / or thick material pump system.Low-stimulation and / or low-stress and therefore low-wear or gentle or gentle pumping enables a long service life of the construction and / or slurry pump system. Quiet pumping makes it possible to extend the operating times of the construction and / or slurry pump system, for example in a residential area. In particular, the determination can be automatic. Additionally or alternatively, the deviation and / or the pressure variable can have a value. Further, additionally or alternatively, the pressure variable can be a temporally average pressure variable. Further, additionally or alternatively, the average pressure variable can be determined, in particular recorded. Further, additionally or alternatively, the term “mountain” can be used synonymously for the term “peak”. Further, additionally or alternatively, the term “valley” can be used synonymously for the term “collapse”. Further, additionally or alternatively, the rise or fall can be temporal.Furthermore, or alternatively, the determination may comprise determining a point in time of the deviation, in particular with respect to the determined time period, in the recorded curve, and may be carried out to reduce or avoid the deviation for a corresponding point in time. Furthermore, or alternatively, the determination may be carried out to reduce or avoid the deviation by adjusting the movement of the delivery piston, in particular for the corresponding point in time.

[0033] In particular, the construction and / or slurry pump system does not need to have a displacement sensor, in particular for determining the duration.

[0034] In a further development, in particular in one embodiment, of the invention, the determination of the time duration is carried out based on the recorded profile. Additionally or alternatively, the method comprises the step of detecting a time duration of the pressure variable during the intermediate movement stroke after step b) and before step c). The determination of the time duration is carried out based on the recorded profile of the pressure variable during the intermediate movement stroke. This enables simple and therefore cost-effective determination of the time duration. In particular, the determination of the time duration can be carried out by detecting a respective reaching of end positions of the movement stroke by the delivery piston in the course. Additionally or alternatively, an increase, in particular an initial increase, in the pressure variable can be representative of a start of the movement stroke and / or the intermediate movement stroke.be characteristic, in particular caused by the delivery piston being pushed from an end position by air and / or building and / or thick material. Furthermore, or alternatively, an increase, in particular an end increase, can be representative of an end of the movement stroke and / or the intermediate movement stroke, in particular caused by the delivery piston approaching an end wall of the delivery cylinder or the delivery piston touching the end wall in an end position. Furthermore, or alternatively, the detection can be automatic.

[0035] In particular, the construction and / or thick matter pump system can have at least one vibration sensor, a knock sensor and / or a microphone, in particular for determining the time duration, in particular by detecting a respective reaching of end positions of the movement stroke by the delivery piston.

[0036] In a further development of the invention, the construction and / or slurry pump system has limit switches. The determination of the duration is carried out by detecting the respective reaching of the end positions of the movement stroke by the delivery piston using the limit switches. This enables simple and thus cost-effective and / or reliable determination of the duration. In particular, the term "position switch" can be used synonymously with the term "limit switch." Additionally or alternatively, the limit switches can be electrical. Further additionally or alternatively, the detection can be automatic. Further additionally or alternatively, the end positions can be the end positions of the delivery piston.

[0037] In a further development, in particular an embodiment, of the invention, the determination and / or monitoring is / are carried out taking into account, in particular in a timely, forward-looking manner, a reaction time of the construction and / or slurry pump system for building up the pressure variable. This enables compensation for the reaction time. Additionally or alternatively, this enables a functional interaction with the temporal progression and / or duration, in particular since it is also time-based, and thus the creation or production of a combinatorial technical synergy effect, in particular enabling particularly simple determination and / or particularly simple monitoring. Furthermore, additionally or alternatively, this enables the achievement of a particularly uniform temporal progression of the pressure variable. In particular, the term "delay time" can be used synonymously with the term "reaction time".Additionally or alternatively, the reaction time can have a value, in particular a minimum of 0.1 s (seconds) and / or a maximum of 1 s. Furthermore, or alternatively, the reaction time can be constant and / or the reaction time need not be variable. Furthermore, or alternatively, the reaction time can be factory-determined, in particular determined and specified.

[0038] In a further development of the invention, the construction and / or slurry pump system comprises at least one drive cylinder, at least one drive piston, a drive pump device, and at least one piston rod. The drive piston is movably arranged in the drive cylinder. The drive pump device is designed to generate a drive flow of hydraulic fluid for moving the drive piston. The piston rod is attached to the drive piston and to the delivery piston for their movement coupling. Delivery is carried out by generating the drive flow. Controlling comprises controlling the drive pump device to generate the drive flow. In particular, the reaction time is a reaction time of the drive pump device. This enables the movement stroke and / or the intermediate movement stroke.Additionally or alternatively, this enables, in particular by achieving a uniform temporal progression of the pressure variable, a smoothing of the power consumption of the drive pump device and thus a reduction in energy consumption. In particular, the drive cylinder can be designed to accommodate hydraulic fluid. Additionally or alternatively, the generation and / or movement can be automatic. Further additionally or alternatively, the drive flow can have a value. Further additionally or alternatively, the term “current” can be used synonymously with the term “flow”. Further additionally or alternatively, hydraulic fluid can be hydraulic oil. Further additionally or alternatively, the pressure variable can be the pressure, in particular in the form of a drive and / or high pressure of hydraulic fluid, acting on the drive piston and / or the piston rod.Additionally or alternatively, the end positions can be end positions of the drive piston and / or the piston rod.

[0039] In one embodiment of the invention, the drive pump device comprises an axial piston pump with a variably adjustable swash plate. In particular, the drive pump device is the axial piston pump. The control comprises adjusting a pivot angle of the swash plate. This enables the movement stroke and / or the intermediate movement stroke particularly well. In particular, the term "adjust" can be used synonymously with the term "adjust". Additionally or alternatively, the term "sliding" can be used synonymously with the term "slanted". Further additionally or alternatively, the adjustment can be automatic. Further additionally or alternatively, the pivot angle can have a value.

[0040] In a further development, in particular an embodiment, of the invention, the construction and / or slurry pump system comprises a drive motor device. The drive motor device is designed to move the delivery piston, in particular by driving the drive pump device to generate the drive flow of hydraulic fluid. This, in particular the achievement of a uniform temporal progression of the pressure variable, enables a smoothing of the power output of the drive motor device and thus a reduction in energy consumption and / or a small dimensioning of the drive motor device. In particular, the drive motor device can be an internal combustion engine and / or an electric drive motor device. Additionally or alternatively, the drive can be automatic. Further additionally or alternatively, the drive motor device can be designed to rotate the axial piston pump.

[0041] In a further development of the invention, the construction and / or sludge pump system comprises a delivery line for conveying construction and / or sludge displaced by the delivery piston through the delivery line. In particular, the construction and / or sludge pump system comprises a delivery mast supporting the delivery line at least in sections. Additionally or alternatively, the delivery line comprises an end hose. This, in particular the achievement of a uniform temporal progression of the pressure variable, makes it possible to reduce or avoid excitation and / or loading of the delivery line, and in particular of the delivery mast and / or the end hose. In particular, the conveying can be automatic.

[0042] The construction and / or slurry pump system according to the invention is for conveying construction and / or slurry. The construction and / or slurry pump system has at least the conveying cylinder, at least the conveying piston, the pressure sensor device, the detection device, the determination device, and the control device. The conveying cylinder is designed to receive and discharge construction and / or slurry. The conveying piston is movably arranged in the conveying cylinder for sucking construction and / or slurry into the conveying cylinder and for displacing sucked-in construction and / or slurry out of the conveying cylinder. The construction and / or slurry pump system is designed to convey construction and / or slurry by moving the conveying piston to suck in and displace the construction and / or slurry.The pressure sensor device is designed to detect the temporal progression of the pressure variable indicative of the pressure acting on the building and / or thick material in the delivery cylinder during the movement stroke of the delivery piston for displacing the building and / or thick material. The determination device is designed to determine, in particular, the duration of the movement stroke of the delivery piston for displacing the building and / or thick material. The determination device is designed to determine at least the movement variable for controlling the subsequent movement stroke of the delivery piston for displacing the building and / or thick material by linking the detected progression and the determined duration. The control device is designed to control the subsequent movement stroke in accordance with the determined movement variable. The construction and / or thick material pump system can enable the same advantages as methods.In particular, the construction and / or slurry pumping system can be configured to carry out, in particular automatically, the method. Additionally or alternatively, the construction and / or slurry pumping system can be configured at least partially or completely as described for the method. Furthermore, additionally or alternatively, the pressure sensor device, the detection device, the determination device, and / or the control device can be electrical. Furthermore, additionally or alternatively, the detection device, the determination device, and / or the control device can comprise a processor and / or a memory. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Further advantages and aspects of the invention emerge from the claims and from the description of exemplary embodiments of the invention, which are explained below with reference to the figures. In the figures: Fig. 1 a schematic circuit diagram of a construction and / or thick matter pump system according to the invention for conveying construction and / or thick matter in a method according to the invention for operating the construction and / or thick matter pump system for conveying construction and / or thick matter, Fig. 2 a schematic view of a time course of a pressure variable characteristic of a pressure acting on construction and / or thick matter in a delivery cylinder of the construction and / or thick matter pump system during a movement stroke of a delivery piston of the construction and / or thick matter pump system in the delivery cylinder for displacing construction and / or thick matter out of the delivery cylinder, a schematic view of at least one intermediate movement variable for controlling a subsequent intermediate movement stroke of the delivery piston for displacing building and / or thick material based on the course over time, and a schematic view of a temporal course of the pressure variable during the intermediate movement stroke, and a schematic view of at least one movement variable for controlling a subsequent movement stroke of the delivery piston for displacing building and / or thick material based on the course and a duration of the intermediate movement stroke over time, and a schematic view of a temporal course of the pressure variable during the movement stroke, and Fig. 3 a schematic view of the movement stroke, and Fig. 4 a schematic view of the construction and / or slurry pumping system. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] Fig. 1 to 4 show a method according to the invention for operating a construction and / or thick matter pump system 1 for conveying construction and / or thick matter BDS and the construction and / or thick matter pump system 1 according to the invention for conveying construction and / or thick matter BDS.

[0045] The construction and / or slurry pump system 1 comprises at least one delivery cylinder 2a, 2b, at least one delivery piston 3a, 3b, a pressure sensor device 13, a detection device 14, a determination device 15, and a control device 16. The delivery cylinder 2a, 2b is designed to receive and discharge construction and / or slurry BDS, in particular, receives and discharges. The delivery piston 3a, 3b is movably arranged in the delivery cylinder 2a, 2b for sucking construction and / or slurry BDS into the delivery cylinder 2a, 2b and for displacing sucked-in construction and / or slurry BDS out of the delivery cylinder 2a, 2b, in particular, moves and sucks in and thus displaces. The construction and / or thick matter pump system 1 is designed to convey construction and / or thick matter BDS by moving the delivery piston 3a, 3b for sucking in and displacing construction and / or thick matter BDS, in particular moves and conveys it.The pressure sensor device 13 is designed, in particular, to detect a time profile zV of a pressure variable pG indicative of a pressure p acting on building and / or thick material BDS in the delivery cylinder 2a, 2b during a movement stroke vBH of the delivery piston 3a, 3b for displacing building and / or thick material BDS. The determination device 14 is designed, in particular, to detect, in particular, a time duration ZDBH of a movement stroke ZvBH of the delivery piston 3a, 3b for displacing building and / or thick material BDS. The determination device 15 is designed, in particular, to determine at least one movement variable BG for controlling a subsequent movement stroke nBH of the delivery piston 3a, 3b for displacing building and / or thick material BDS by linking the detected profile zV and the determined time duration ZDBH with one another.The control device 16 is designed, in particular controlled, to control the subsequent movement stroke nBH in accordance with the determined movement size BG.

[0046] The method comprises the steps: a) Conveying building and / or thick material BDS by moving the delivery piston 3a, 3b to suck in and displace the building and / or thick material BDS. b) Recording the time profile zV of the pressure variable pG indicative of the pressure p acting on the building and / or thick material BDS in the delivery cylinder 2a, 2b during the movement stroke vBH of the delivery piston 3a, 3b to displace the building and / or thick material BDS. c) Determining, in particular recording, the time duration ZDBH of the movement stroke ZvBH of the delivery piston 3a, 3b to displace the building and / or thick material BDS. d) Determining at least the movement size BG for controlling the subsequent movement stroke nBH of the delivery piston 3a, 3b for displacing building and / or thick material BDS by linking the recorded curve zV and the determined time period ZDBH. e) Controlling the subsequent movement stroke nBH according to the determined movement size BG.

[0047] In the exemplary embodiment shown, the method comprises the steps chronologically after step b) and chronologically before step c): determining at least one intermediate movement variable ZBG for controlling a subsequent intermediate movement stroke ZnBH of the delivery piston 3a, 3b for displacing building material and / or thick material BDS based on the recorded profile zV. Controlling the subsequent intermediate movement stroke ZnBH in accordance with the determined intermediate movement variable ZBG. Step c) comprises: determining the time duration ZDBH of the intermediate movement stroke ZvBH. In particular, step d) comprises: determining the movement variable BG by linking the determined intermediate movement variable ZBG and the determined time duration ZDBH.

[0048] In alternative embodiments, step c) may comprise determining the duration of the movement stroke vBH. Step d) may comprise determining the movement magnitude by linking the recorded profile and the determined duration.

[0049] Furthermore, at least the movement size BG is a temporal movement size profile BGP. Additionally or alternatively, at least the intermediate movement size ZBG is a temporal intermediate movement size profile ZBGP.

[0050] Furthermore, at least the movement variable BG is determined to reduce or avoid a deviation ΔZD, in particular the determined time period ZDBH, from a predetermined time period vZD and / or a predetermined flow rate. In particular, step d) comprises: determining the movement variable profile BGP by compressing or stretching the intermediate movement variable profile ZBGP.

[0051] Furthermore, the determination comprises determining a deviation ΔpG, in particular from an average pressure variable mpG, in particular a peak SP or a dip El, in particular of the pressure variable pG or an increase AN or a decrease AB of the pressure variable pG, in the detected curve zV and is carried out to reduce or avoid the deviation ΔpG, in particular by inverting or reversing the detected curve zV.

[0052] In addition, the determination of the time period ZDBH is carried out based on the recorded curve zV. Additionally or alternatively, the method comprises the step of chronologically after step b) and chronologically before step c): detecting a chronological curve ZzV of the pressure variable pG during the intermediate movement stroke ZnBH. The determination of the time period ZDBH is carried out based on the recorded curve ZzV of the pressure variable pG during the intermediate movement stroke ZnBH.

[0053] Additionally or alternatively, the construction and / or slurry pump system 1 comprises limit switches 4aa, 4ab, 4ba, 4bb. The time period ZDBH is determined by detecting the respective reaching of the end positions ELa, ELb of the movement stroke ZvBH by the delivery piston 3a, 3b using the limit switches 4aa, 4ab, 4ba, 4bb.

[0054] Furthermore, the determination and / or control is carried out taking into account a reaction time RZ of the construction and / or thick matter pump system 1 for building up the pressure variable pG.

[0055] In addition, the construction and / or slurry pump system 1 comprises at least one drive cylinder 5a, 5b, at least one drive piston 6a, 6b, a drive pump device 7, and at least one piston rod 8a, 8b. The drive piston 6a, 6b is movably arranged in the drive cylinder 5a, 5b. The drive pump device 7 is designed to generate, in particular generates and thus moves, a drive flow of hydraulic fluid HF for moving the drive piston 6a, 6b. The piston rod 8a, 8b is attached to the drive piston 6a, 6b and to the delivery piston 3a, 3b for coupling their movement. Delivery is carried out by generating the drive flow. Controlling comprises controlling the drive pump device 7 to generate the drive flow. In particular, the reaction time RZ is a reaction time of the drive pump device 7.

[0056] In the exemplary embodiment shown, the construction and / or slurry pump system 1 has exactly two delivery cylinders 2a, 2b and exactly two delivery pistons 3a, 3b, and in particular exactly two drive cylinders 5a, 5b, exactly two drive pistons 6a, 6b, and exactly two piston rods 8a, 8b. In alternative exemplary embodiments, the construction and / or slurry pump system can have only a single delivery cylinder and only a single delivery piston, and in particular only a single drive cylinder, only a single drive piston, and only a single piston rod, or at least three delivery cylinders and at least three delivery pistons, and in particular at least three drive cylinders, at least three drive pistons, and at least three piston rods.

[0057] In the exemplary embodiment shown, the construction and / or thick matter pump system 1 has a rocking line for hydraulic fluid HF. At least the drive pump device 7 and the drive cylinders 5a, 5b form a, in particular closed, drive circuit for hydraulic fluid HF by means of the rocking line. The drive pistons 6a, 6b, and in particular thus the piston rods 8a, 8b and thus the delivery pistons 3a, 3b, are coupled to one another by means of the rocking line at least temporarily, in particular permanently, in particular in antiphase, in particular 180 degrees antiphase, or for moving in opposite directions. In particular, the construction and / or thick matter pump system can have a supply and / or discharge system for supplying and / or discharging hydraulic fluid into the rocking line. This can make it possible for the drive pistons, and in particular thus the piston rods and thus the delivery pistons, to be temporarily uncoupled or uncoupled from one another.can be decoupled from each other, especially for independent movement.

[0058] The process can be carried out differently or not the same or individually for the at least two delivery pistons.

[0059] In detail, the drive pump device 7 comprises an axial piston pump 7' with a variably adjustable swash plate 7". The control comprises adjusting a swivel angle SW of the swash plate 7".

[0060] Furthermore, the construction and / or slurry pump system 1 comprises a drive motor device 9. The drive motor device 9 is designed to move the delivery piston 3a, 3b, in particular by driving the drive pump device 7 to generate the drive flow of hydraulic fluid HF.

[0061] In addition, the construction and / or slurry pumping system 1 comprises a delivery line 10 for conveying construction and / or slurry BDS displaced by the delivery piston 3a, 3b through the delivery line 10. In particular, the construction and / or slurry pumping system 1 comprises a conveyor mast 11 supporting the delivery line 10 at least in sections. Additionally or alternatively, the delivery line 10 comprises an end hose 12.

[0062] Furthermore, the construction and / or slurry pump system 1 comprises an adjustable line switch device and a construction and / or slurry feed, in particular a feed hopper. The line switch device is designed to connect, in particular connect, the delivery cylinder 2a, 2b, in particular either to the delivery line 10 in one position or to the construction and / or slurry feed in another position for a flow of construction and / or slurry BDS. In particular, one end of the movement stroke, and in particular of the intermediate movement stroke, and the adjustment are synchronized, or the adjustment is executed when one of the end positions ELa, ELb is reached.

[0063] Furthermore, the pressure sensor device 13, the detection device 14, the determination device 15 and the control device 16, and in particular the limit switches 4aa, 4ab, 4ba, 4bb, the drive pump device 7 and / or the drive motor device 9 have a signal connection, in particular an electrical one, as shown by dotted lines. In other words:

[0064] Fig. 2 shows as horizontal scale / line t for the time and as vertical scale / line the control or actuation / current at the top and the pressure p at the bottom.

[0065] Fig. 2 above shows the control or activation of the drive pump device 7 or the hydraulic pump (control or control current) of the first movement stroke of one of the delivery pistons.

[0066] Below shows Fig. 2 the corresponding curve of the pressure variable, in particular the pressure curve, of the first movement stroke of the delivery piston.

[0067] Below shows Fig. 2 The control of the hydraulic pump (control current) for the second stroke of the delivery piston, inversely and with response time compensation. In detail, the current is controlled based on the previous pressure curve (current curve analogous to the pressure curve inverted) [compensation for pressure peaks / drops].

[0068] Below shows Fig. 2 shows the corresponding pressure curve of the second stroke of the delivery piston. Although the pressure curve is uniform, the original duration is increased, or the delivery rate is reduced.

[0069] Below shows Fig. 2 the control of the hydraulic pump (control current) of the third movement stroke of the delivery piston, increased to compensate for the time duration.

[0070] Below shows Fig.2 shows the corresponding pressure curve of the third stroke of the delivery piston. The pressure curve remains uniform, and the original duration or delivery rate is reached again.

[0071] As the embodiments shown and explained above make clear, the invention provides an advantageous method for operating a construction and / or slurry pumping system for conveying construction and / or slurry and an advantageous construction and / or slurry pumping system for conveying construction and / or slurry, which have improved properties.

Claims

[1] Method for operating a construction and / or slurry pumping system (1) for conveying construction and / or slurry (BDS), - wherein the construction and / or slurry pump system (1) comprises: - at least one conveyor cylinder (2a, 2b), wherein the conveyor cylinder (2a, 2b) is designed to receive and discharge building and / or thick material (BDS), and - at least one delivery piston (3a, 3b), wherein the delivery piston (3a, 3b) is movably arranged in the delivery cylinder (2a, 2b) for sucking building and / or thick material (BDS) into the delivery cylinder (2a, 2b) and for displacing sucked-in building and / or thick material (BDS) out of the delivery cylinder (2a, 2b), and - the method comprising the steps of: a) conveying building and / or thick material (BDS) by moving the conveying piston (3a, 3b) for sucking in and displacing building and / or thick material (BDS), b) detecting a time profile (zV) of a pressure variable (pG) indicative of a pressure (p) acting on building and / or thick material (BDS) in the feed cylinder (2a, 2b) during a movement stroke (vBH) of the feed piston (3a, 3b) for displacing building and / or thick material (BDS), c) determining, in particular recording, a time duration (ZDBH) of a, in particular the, movement stroke (ZvBH) of the delivery piston (3a, 3b) for displacing building and / or thick material (BDS), d) determining at least one movement variable (BG) for controlling a subsequent movement stroke (nBH) of the delivery piston (3a, 3b) for displacing building and / or thick material (BDS) by linking the recorded course (zV) and the determined time period (ZDBH) with each other, and e) Check the subsequent movement stroke (nBH) according to the determined movement size (BG). [2] Method according to claim 1, - wherein the method comprises the steps after step b) and before step c): determining at least one intermediate movement variable (ZBG) for controlling a subsequent intermediate movement stroke (ZnBH) of the delivery piston (3a, 3b) for displacing building and / or thick material (BDS) based on the recorded profile (zV), and controlling the subsequent intermediate movement stroke (ZnBH) according to the determined intermediate movement variable (ZBG), and - wherein step c) comprises: determining the time duration (ZDBH) of the intermediate movement stroke (ZvBH), - in particular wherein step d) comprises: determining the movement size (BG) by linking the determined intermediate movement size (ZBG) and the determined time period (ZDBH) with one another. [3] Method according to claim 1 or 2, - where at least the movement size (BG) is a temporal movement size profile (BGP), and / or - where at least the intermediate movement size (ZBG) is a temporal intermediate movement size profile (ZBGP). [4] Method according to one of claims 1 to 3, - wherein the determination of at least the movement quantity (BG) is carried out to reduce or avoid a deviation (ΔZD), in particular of the determined time period (ZDBH), from a predetermined time period (vZD) and / or a predetermined delivery quantity, - in particular wherein step d) comprises: determining the movement size profile (BGP) by compressing or stretching the intermediate movement size profile (ZBGP). [5] Method according to one of claims 1 to 4, in particular claim 2, - wherein the determining comprises determining a deviation (ΔpG), in particular from an average pressure variable (mpG), in particular a peak (SP) or a dip (El), in particular of the pressure variable (pG) or an increase (AN) or a decrease (AB) of the pressure variable (pG), in the recorded curve (zV) and is carried out to reduce or avoid the deviation (ΔpG). [6] Method according to one of claims 1 to 5, in particular claim 2, - wherein the determination of the time duration (ZDBH) is carried out based on the recorded history (zV), and / or - wherein the method comprises the step of detecting a time profile (ZzV) of the pressure variable (pG) during the intermediate movement stroke (ZnBH) after step b) and before step c), and wherein the determination of the time duration (ZDBH) is carried out based on the detected profile (ZzV) of the pressure variable (pG) during the intermediate movement stroke (ZnBH). [7] Method according to one of claims 1 to 6, - wherein the construction and / or thick matter pump system (1) has limit switches (4aa, 4ab, 4ba, 4bb), and - wherein the determination of the time period (ZDBH) is carried out by detecting a respective reaching of end positions (ELa, ELb) of the movement stroke (ZvBH) by the delivery piston (3a, 3b) by means of the limit switches (4aa, 4ab, 4ba, 4bb). [8] Method according to one of claims 1 to 7, in particular claim 2, - wherein the determining and / or controlling is carried out taking into account in advance a reaction time (RZ) of the construction and / or thick matter pump system (1) for building up the pressure variable (pG). [9] Method according to one of claims 1 to 8, - wherein the construction and / or slurry pump system (1) comprises: - at least one drive cylinder (5a, 5b), - at least one drive piston (6a, 6b), wherein the drive piston (6a, 6b) is movably arranged in the drive cylinder (5a, 5b), - a drive pump device (7), wherein the drive pump device (7) is designed to generate a drive flow of hydraulic fluid (HF) for moving the drive piston (6a, 6b), and - at least one piston rod (8a, 8b), wherein the piston rod (8a, 8b) is attached to the drive piston (6a, 6b) and to the delivery piston (3a, 3b) for their movement coupling, - wherein the conveying is carried out by generating the drive flow, and - wherein the controlling comprises controlling the drive pump device (7) for generating the drive flow, - in particular wherein the reaction time (RZ) is a reaction time of the drive pump device (7). [10] Method according to claim 9, - wherein the drive pump device (7) comprises an axial piston pump (7') with a variably adjustable swash plate (7"), - wherein the checking comprises adjusting a pivoting angle (SW) of the swash plate (7"). [11] Method according to one of claims 1 to 10, in particular claim 9, - wherein the construction and / or slurry pump system (1) comprises: - a drive motor device (9), wherein the drive motor device (9) is designed to move the delivery piston (3a, 3b), in particular by driving the drive pump device (7) to generate the drive flow of hydraulic fluid (HF). [12] Method according to one of claims 1 to 11, - wherein the construction and / or slurry pump system (1) comprises: - a conveyor line (10) for conveying building and / or thick material (BDS) displaced by the conveyor piston (3a, 3b) through the conveyor line (10), in particular a conveyor mast (11) carrying at least some sections of the conveyor line (10), and / or in particular the conveyor line (10) having an end hose (12). [13] Construction and / or thick matter pumping system (1) for conveying construction and / or thick matter (BDS), in particular for carrying out a method according to one of claims 1 to 12, wherein the construction and / or thick matter pumping system (1) comprises: - at least one conveyor cylinder (2a, 2b), wherein the conveyor cylinder (2a, 2b) is designed to receive and discharge building and / or thick material (BDS), and - at least one delivery piston (3a, 3b), wherein the delivery piston (3a, 3b) is movably arranged in the delivery cylinder (2a, 2b) for sucking building and / or thick material (BDS) into the delivery cylinder (2a, 2b) and for displacing sucked-in building and / or thick material (BDS) out of the delivery cylinder (2a, 2b), and - wherein the construction and / or thick matter pump system (1) is designed to convey construction and / or thick matter (BDS) by moving the conveying piston (3a, 3b) for sucking in and displacing construction and / or thick matter (BDS), - a pressure sensor device (13), wherein the pressure sensor device (13) is designed to detect a time profile (zV) of a pressure variable (pG) indicative of a pressure (p) acting on building and / or thick material (BDS) in the feed cylinder (2a, 2b) during a movement stroke (vBH) of the feed piston (3a, 3b) for displacing building and / or thick material (BDS), - a determination device (14), wherein the determination device (14) is designed to determine, in particular to detect, a time duration (ZDBH) of a, in particular the, movement stroke (ZvBH) of the delivery piston (3a, 3b) for displacing building and / or thick material (BDS), - a determination device (15), wherein the determination device (15) is designed to determine at least one movement variable (BG) for controlling a subsequent movement stroke (nBH) of the delivery piston (3a, 3b) for displacing building and / or thick material (BDS) by linking the recorded course (zV) and the determined time period (ZDBH) with one another, and - a control device (16), wherein the control device (16) is designed to control the subsequent movement stroke (nBH) in accordance with the determined movement size (BG).

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