EP2799712A2 - Pompe à liquides épais - Google Patents

Pompe à liquides épais Download PDF

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Publication number
EP2799712A2
EP2799712A2 EP14161785.2A EP14161785A EP2799712A2 EP 2799712 A2 EP2799712 A2 EP 2799712A2 EP 14161785 A EP14161785 A EP 14161785A EP 2799712 A2 EP2799712 A2 EP 2799712A2
Authority
EP
European Patent Office
Prior art keywords
delivery
feed
pressure
slurry pump
unit
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.)
Granted
Application number
EP14161785.2A
Other languages
German (de)
English (en)
Other versions
EP2799712A3 (fr
EP2799712B1 (fr
Inventor
Jürg Matter
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.)
MPS-Matter Pumpsysteme GmbH
Original Assignee
MPS-Matter Pumpsysteme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MPS-Matter Pumpsysteme GmbH filed Critical MPS-Matter Pumpsysteme GmbH
Publication of EP2799712A2 publication Critical patent/EP2799712A2/fr
Publication of EP2799712A3 publication Critical patent/EP2799712A3/fr
Application granted granted Critical
Publication of EP2799712B1 publication Critical patent/EP2799712B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed

Definitions

  • the invention relates to a slurry pump and a method for operating such a slurry pump.
  • From the DE 101 50 467 A1 is already a slurry pump with two delivery cylinders, with guided in the delivery cylinders delivery pistons, which are intended to be moved in a delivery cycle from a first dead center to a second dead center, as well as with an adjustment and a control and / or regulating unit to the are provided to change at least one feed rate and / or a feed pressure of the delivery piston during the conveying cycle, known.
  • the object of the invention is in particular to provide a slurry pump with improved properties in terms of reliability and wear.
  • the object is achieved by the features of the independent claims 1 and 17, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.
  • the invention relates to a slurry pump with at least one delivery cylinder, with a delivery piston guided in the at least one delivery cylinder, which is intended to be moved in a delivery cycle from a first dead center to a second dead center, as well as with a setting unit and a control unit. and / or control unit intended to to change at least one feed rate and / or a feed pressure of the at least one delivery piston during the conveying cycle.
  • control and / or regulating unit is provided for subdividing the delivery cycle into at least two different sections for which the feed rate and / or the feed pressure are individually adjustable.
  • pressure waves can be reduced in a subsequent to the sludge pump delivery line, which in particular caused by the pressure waves vibrations can be reduced. Due to the reduced vibrations, a load on the delivery line can be lowered, which increases reliability and wear can be reduced.
  • a "delivery cylinder” is to be understood in particular as meaning a cylinder which delimits with the delivery piston a pressure chamber which is intended to be filled with a thick material to be conveyed, in particular concrete.
  • a "feed rate” is to be understood in particular a translational speed of the delivery piston.
  • a “feed pressure” is understood in particular to mean a pressure exerted by the delivery piston on the thick material pressure, which depends in particular on a hydraulic actuation of the delivery piston from an operating medium pressure for actuating the delivery piston.
  • the feed rate and the medium pressure are dependent on each other.
  • the operating medium pressure and thus also the feed rate can basically assume the value zero.
  • a “delivery cycle” is to be understood in particular as meaning a period of time and / or a travel path which is defined by a movement of the delivery piston from one dead center into the other dead center.
  • a “dead center” should be understood in particular a reversal point of the delivery piston.
  • a “cylinder stroke” should be understood to mean in particular both a pumping stroke and a suction stroke.
  • a “subsection of the conveying cycle” is to be understood in particular as a subdivision of the movement from the one dead center into the other dead center into a plurality of individual steps.
  • the conveyor cycle in divided at least four sections.
  • An "individual setting” should be understood in particular to mean that the feed rate and / or the feed pressure in each subsection can be set independently of the preceding subsection.
  • a “control and / or regulating unit” should in particular be understood to mean a unit having at least one control electronics.
  • control electronics is meant in particular a unit with a processor unit and with a memory unit and with an operating program stored in the memory unit.
  • provided is intended to be understood in particular specially programmed, designed and / or equipped.
  • a “setting unit” is to be understood in particular as meaning a unit of mechanical, hydraulic, pneumatic and / or electrical components which is connected to the electronic control and / or regulating unit and which is provided for changing the feed rate and / or the feed pressure.
  • the subsections are formed as path sections and / or time sections.
  • the delivery cycle can be easily divided into the different sections.
  • a “subdivision into subsections designed as time segments” should be understood in particular to mean that the control and / or regulating unit subdivides the conveying cycle into time segments of defined length.
  • a “subdivision into subsections formed as path sections” should be understood in particular to mean that the control and / or regulating unit subdivides the distance between the dead points into defined path sections.
  • a subdivision of the at least one conveying cycle into the subsections embodied as path sections and / or as time segments can take place on the basis of different operating programs. In particular, an operating program is conceivable in which the delivery cycle is subdivided into fixed sections from the beginning.
  • subdivide the delivery stroke dynamically into subsections, wherein the subsections are limited by events during the delivery stroke.
  • the control and / or regulating unit converts the promotion cycle into a new one Divided subsection, for example, exceeding the actual value for the feed pressure or falls below a degree of filling of the delivery cylinder, which can be determined based on the actual value for the feed pressure and an actual value for the feed rate, defined.
  • the sludge pump has an operating unit for inputting at least one parameter for at least one partial section, from which the feed rate and / or the feed pressure in the at least one partial section at least depends.
  • an expensive sensor system for detecting or determining these parameters can be dispensed with, at least in part.
  • an operating program of the control and / or regulating unit can be carried out easily, in particular if by means of the parameters the thick material to be pumped can be characterized and / or the operator can set the feed rate and / or the feed pressure directly on the basis of the parameters.
  • control unit is to be understood in particular as meaning a unit which has at least one component which can be actuated directly by an operator and which is provided for by means of an actuation and / or by input of parameters a process and / or a state of to influence and / or change the unit coupled to the control unit.
  • at least depends is to be understood in particular that by means of the parameter, the feed rate and / or the feed pressure are adjustable because a dependence of the feed rate and / or the feed pressure of the parameter is known, or that the parameter directly feed rate and / or indicates the feed pressure.
  • the at least one parameter is designed as a setpoint specification for setting the feed rate and / or the feed pressure.
  • This allows an operator to directly adjust which Feed rate and / or which feed pressure to be set in the individual sections. The operator can thus directly influence the pumping process. If the setpoint is changed during the pumping process, the operator can observe how the change in the setpoint settings affects the pumping process. The operator can thus directly observe how a change in the setpoint specifications affects the pressure waves and the vibrations caused by the pressure waves, whereby the operator can advantageously influence the vibration behavior.
  • the operating unit is provided for inputting a concrete code as a parameter.
  • an alternative operating program can be provided by which the operator can be relieved.
  • the mixture of its dependent, well-defined and thus known properties, thus setpoint specifications for the feed rate and / or the feed pressure in the individual sections of a conveyor cycle can be determined in advance.
  • By entering a concrete code only a suitable set of setpoint specifications is selected.
  • a combination of different operating programs is conceivable. For example, an operating mode is conceivable in which the operator first inputs the concrete code, thereby loading a set of setpoint presets. After entering the concrete code, the operating unit then provides input options for modifying the loaded setpoint inputs during operation.
  • the operating unit is preferably provided for variably inputting a value for the at least one parameter and / or for selecting from a predefined list of values for the at least one parameter.
  • a high level of flexibility can be achieved when setting values for the parameters, in particular when setting desired value specifications.
  • Variable input of the value can be achieved, for example, if the operator selects any feed rate and / or feed pressure or you can enter almost any value between 0% and 100%.
  • a high degree of security can be achieved if the input of the values for parameters is limited to specific values.
  • the operating unit has at least one switch which is provided for setting a number of subsections as setpoint specification.
  • control and / or regulating unit has a memory for storing at least one sequence program with at least one desired value specification.
  • sequence program is to be understood in particular as meaning a set of associated parameters, preferably setpoint specifications, which specifies the individual feed rates and / or feed pressures for the sections of a conveyor cycle.
  • the control and / or regulating unit has at least one characteristic curve for determining the feed rate and / or the feed pressure.
  • the feed rate and / or the feed pressure can be easily determined based on eiticianen and / or certain parameters.
  • the input unit can thereby be provided for the input of parameters which describe the properties of the thick material to be pumped, such as, for example, its flow rate.
  • the control and / or regulating unit can then determine the feed rate and / or the feed pressure in the individual subsections without the operator must enter them.
  • a "characteristic curve" should be understood to mean in particular a value assignment which is used to determine values for the Feed rate and / or the feed pressure using parameters that have been entered by an operator and / or determined by a dedicated sensor unit, is provided.
  • control unit is provided to determine a degree of filling of the at least one delivery cylinder for setting the feed rate and / or the feed pressure.
  • the degree of filling is much easier to determine than the pressure waves, whereby the determination of the degree of filling represents a simple means for reducing a material stress by the pressure waves.
  • the slurry pump has a sensor unit for the direct or indirect determination of the feed rate and / or the feed pressure.
  • the control and / or regulating unit can be provided for a control circuit for setting the setpoint specifications, whereby the setpoint specifications can be adjusted easily and with high accuracy.
  • the slurry pump further comprises a hydraulic system for driving the at least one delivery piston and at least one pressure sensor for detecting an operating medium pressure in the hydraulic system, which is provided for determining the feed pressure by the control and / or regulating unit.
  • a hydraulic system for driving the at least one delivery piston and at least one pressure sensor for detecting an operating medium pressure in the hydraulic system, which is provided for determining the feed pressure by the control and / or regulating unit.
  • the slurry pump has at least one position and / or displacement sensor which is provided for determining the feed rate.
  • the position and / or displacement sensor can be designed as a simple position sensor which responds only when the delivery piston has a specific position.
  • the at least one position and / or Displacement sensor provided for the formation of a displacement measuring system, by means of which a current position of the at least one delivery piston is continuously determined.
  • an arrangement of the position sensors defines the subsections in whose subdivision the control unit is provided.
  • the slurry pump has at least one position and / or displacement sensor, which is provided for determining a position of the at least one delivery piston, and that the control and / or regulating unit is provided to the delivery cycle based on a position and / or path signal of the at least one position and / or displacement sensor into the subsections to divide.
  • the sections can be easily specified, whereby a particularly advantageous control is possible.
  • a single position and / or displacement sensor for determining the feed rate and for determining a position of the at least one delivery piston can be provided.
  • the slurry pump comprises at least one further delivery cylinder and a further delivery piston, which is guided in the further delivery cylinder, wherein the adjustment is provided to set different feed rates and / or different feed pressures in at least one section for the delivery piston.
  • the two delivery pistons can be operated in opposite directions, ie one delivery piston carries out a pumping stroke, while the other delivery piston executes a suction stroke.
  • different feed rates and / or different feed pressures can be set for the delivery piston, whereby in the sub-sections for the delivery piston, which performs the pumping stroke, other setpoint specifications can be set as for the delivery piston, which executes the suction stroke.
  • a "setting unit which is intended to set different feed speeds and / or different feed pressures for the delivery pistons" is to be understood in this context in particular as meaning a unit of hydraulic components which at least partially permits a separate adjustment of the delivery pistons.
  • the sludge pump further comprises two drive cylinders and two drive pistons coupled to one of the delivery pistons, which are guided in the drive cylinders and which each define at least one pressure volume with the drive cylinders, and a hydraulic line which connects the pressure volumes to one another, wherein the adjustment unit is provided for this purpose to change a resource amount in the pressure volume and the hydraulic line.
  • the drive cylinder can be at least partially decoupled from each other by the change in the amount of equipment, which feed rates and / or feed pressures, which have the drive piston and thus the delivery piston, at least partially independently of each other.
  • Such a configuration can thus provide a hydraulic system for driving the delivery pistons, which on the one hand has high reliability and on the other hand permits high flexibility.
  • the sensor unit is preferably provided for the separate determination of the feed speeds of at least two delivery pistons.
  • the separate setting in particular of the feed speeds can be easily monitored by the control and / or regulating unit, whereby a high degree of operational reliability can be achieved.
  • a concrete pumping device with a slurry pump according to the invention is proposed.
  • a concrete pumping device are used in the long, flexible conveyor lines, which are attached to a boom, a sludge pump according to the invention is advantageous.
  • a method for operating a sludge pump according to the invention in which at least one delivery cylinder guided in a conveyor cycle is moved in a conveyor cycle from a first dead center to a second dead center, and in which a feed rate and / or a feed pressure of the at least one delivery piston during the conveying cycle is changed, wherein the conveying cycle is divided into at least two different sections, for which the feed rate and / or the feed pressure are set individually.
  • FIGS. 1 to 5 show a concrete pumping device with a slurry pump for pumping concrete, as it can be mounted, for example, on a chassis of a commercial vehicle, not shown, to promote concrete before setting from a mixing vehicle to a Ausbringort.
  • the concrete pumping device For supplying concrete to the sludge pump, the concrete pumping device comprises a material feed tank 38, from which the sludge pump concrete, which is supplied for example via a concrete mixer, sucks.
  • the concrete pumping device comprises a delivery line 39.
  • the commercial vehicle generally has a delivery device to which the delivery line 39 is typically attached.
  • the slurry pump comprises two delivery cylinders 10, 11, which are each intended to convey concrete. Furthermore, the slurry pump comprises two delivery pistons 12, 13 which are each guided in the associated delivery cylinder 10, 11. To produce a continuous flow of concrete as possible, the delivery pistons 12, 13 are intended to be moved in opposite directions.
  • the slurry pump comprises a hydraulic drive with a hydraulic pump 40, two drive cylinders 23, 24 and two drive pistons 25, 26.
  • the drive pistons 25, 26 are each connected rigidly to one of the delivery pistons 12, 13 via piston rods.
  • the drive pistons 25, 26 are double-acting, i. they enclose with the drive cylinders 23, 24 in each case two pressure volumes 27, 28, 29, 30, by means of which the drive pistons 25, 26 can be actively adjusted in both directions.
  • the utility vehicle which is provided with the concrete pumping device, has a drive train with a gear, not shown, and a prime mover 41, which are provided primarily for locomotion.
  • a drive train With the Drive train is provided with a power take-off, to which the hydraulic pump 40 is connected.
  • the hydraulic pump 40 is thereby acted upon by a speed which depends on the rotational speed of the drive machine 41.
  • the hydraulic pump 40 is adjustable.
  • the hydraulic pump 40 is formed as a Reservierpumpe with a swash plate 42 and an actuator 43 for adjusting the inclination angle. By adjusting the inclination angle, a delivery rate of the hydraulic pump 40 is adjustable.
  • the delivery rate can be adjusted via the rotational speed of the drive machine 41.
  • the delivery rate of the hydraulic pump 40 on which the delivery rate of the slurry pump depends, is defined by a resource amount and a resource pressure that provides the hydraulic pump 40.
  • the delivery rate of the slurry pump is thus adjustable by the speed of the engine 41 and the angle of inclination of the swash plate 42 of the hydraulic pump 40.
  • a working cycle of a single delivery piston 12, 13 consists of two delivery cycles 14, wherein the individual delivery piston 12, 13 performs a suction stroke in the first delivery cycle 14 and a pumping stroke in the subsequent delivery cycle 14.
  • the delivery cylinders 10, 11 are filled with concrete.
  • the concrete is pushed out of the delivery cylinders 10, 11 again by means of the delivery pistons 12, 13.
  • the two delivery pistons 12, 13 are provided for an opposite operation, i. while a delivery piston 12, 13 performs a suction stroke, the other delivery piston 12, 13 performs a pumping stroke.
  • the thick matter pump comprises a diverter valve 44.
  • the diverter 44 includes an S-shaped pipe section 45, by means of which the feed line 39 is selectively connectable to the one delivery cylinder 10 or the other delivery cylinder 11.
  • the pipe switch 44 comprises a changeover mechanism, which is provided to connect the pipe section 45 respectively to the delivery cylinder 10, 11, which performs a pumping stroke in the corresponding delivery cycle 14. This is one of each Delivery cylinder 10, 11 connected to the delivery line 39, while the other delivery cylinder 10, 11 is connected to the material feed container 38.
  • the pipe switch 44 is switched between two conveying cycles 14 each.
  • the capacity of the sludge pump is equal to zero or at least almost zero during the switching of the pipe switch 44.
  • the slurry pump comprises a hydraulic system with a plurality of hydraulic lines 31, 32, 33, 34, 35 (cf. FIG. 4 ).
  • the hydraulic system is designed as an open hydraulic system. In principle, however, the hydraulic system can also be at least partially designed as a closed hydraulic system.
  • the first hydraulic lines 31 serve as a central supply line and is connected to a pressure outlet of the hydraulic pump 40.
  • the hydraulic line 31 always has an operating medium pressure which corresponds to an output pressure of the hydraulic pump 40.
  • the two further hydraulic lines 32, 33 are each connected to one of the first pressure volumes 27, 28 of the drive cylinders 23, 24.
  • the hydraulic lines 32, 33 are provided to supply the drive cylinders 23, 24 during a pumping stroke, i. they are subjected to operating medium pressure when the corresponding delivery piston 12, 13 performs a pumping stroke in this delivery cycle 14, in which the concrete from the corresponding delivery cylinder 10, 11 is pushed out.
  • the further hydraulic line 34 connects the two second pressure volumes 29, 30 of the drive cylinders 23, 24 with each other.
  • the hydraulic line 34 forms a rocking line, which is provided for a movement-technical coupling of the delivery pistons 12, 13.
  • the hydraulic line 35 forms a return line which is connected to an operating sump 46 for the hydraulic pump 40.
  • the pipe switch 44 For switching the pipe switch 44 between two conveying cycles 14, the Umschaltmechnismus the pipe switch 44 includes a Verstellzylinderussi 47 with two plunger cylinders, which are also connected to the hydraulic system.
  • the Hydraulic system comprises two further hydraulic lines 36, 37, which supply the plunger cylinders of the adjusting cylinder unit 47 with resources.
  • the S-shaped pipe section 45 is mechanically connected to the plunger cylinders of the adjusting cylinder unit 47.
  • the adjusting cylinder unit 47 is provided to change the switching position of the pipe section 45.
  • the slurry pump comprises an adjustment unit with hydraulic control valves 48, 49, 50 and an electronic control unit 17 for controlling the control valves 48, 49, 50 of the setting unit.
  • the control unit 17 is further provided for driving the actuator 43 to change the inclination angle of the swash plate 42.
  • the control unit 17 is provided to change the speed of the prime mover 41.
  • the control unit 17 is thereby provided to change the resource pressure provided by the hydraulic pump 40 and the amount of resource provided by the hydraulic pump 40.
  • the control and regulating unit 17 for controlling the drive cylinder 23, 24 is provided.
  • the first control valve 48 is provided for driving the drive cylinders 23, 24.
  • the control valve 48 is arranged between the hydraulic line 31, which is designed as a supply line, and the two hydraulic lines 32, 33, to which the first pressure volumes 27, 28 of the drive cylinders 23, 24 are connected.
  • the trained as a return line hydraulic line 35 is connected to the control valve 48.
  • the control valve 48 is designed as a 4/3-way valve. It has three switch positions. The middle switching position is formed as a neutral position. In the middle switching position, the four hydraulic lines 31, 32, 33, 35, which are connected to the control valve 48, separated from each other. In the first switching position, the control valve 48 connects the hydraulic line 32 for supplying the first drive cylinder 23 with the hydraulic line 31 designed as a supply line, whereby operating means, the Hydraulic pump 40 is provided, flows into the pressure volume 27. At the same time, the hydraulic line 33 for supplying the second drive cylinder 24 is connected to the hydraulic line 35 designed as a return line, whereby operating fluid flows from the pressure volume 28 via the hydraulic lines 33, 35 into the operating fluid sump 46.
  • the control valve 48 connects the hydraulic line 33 for supplying the second drive cylinder 24 with the hydraulic line 31 designed as a supply line, whereby operating medium, which is provided by the hydraulic pump 40, flows into the pressure volume 28.
  • the control valve 48 connects the hydraulic line 32 for supplying the first drive cylinder 23 with the hydraulic line 35 designed as a return line, whereby operating fluid flows from the pressure volume 27 via the hydraulic lines 32, 35 into the operating fluid sump 46.
  • the control valve 48 has two actuators, which are connected to the control and regulating unit 17. If the actuators are de-energized, the control valve 48 automatically switches to the middle switching position. By energizing the corresponding actuator, the control valve 48 is switched to the actuator associated switching position.
  • the slurry pump further comprises a connecting piece 58, which is provided to hydraulically connect the drive cylinders 23, 24 with each other (cf. Fig. 6 ).
  • the connecting piece 58 is provided for the design of the control valve 48.
  • the connecting piece 58 is designed in several parts.
  • the pressure volume 27, 28 and / or the pressure volume 29, 30 are connected via the connecting piece 58 to the hydraulic pump 40 and the operating medium sump 46.
  • the connecting piece 58 has for this purpose two operating fluid connections 31 ', 35', to which the hydraulic lines 31, 35 are connected.
  • the connector 58 is supplied with resources.
  • the operating medium is conducted back into the operating medium sump 46 via the operating medium connection 35 '.
  • the hydraulic lines 32, 33, between the Control valve 48 and the pressure volume 27, 28 are arranged, are integrated into the connecting piece 58. In particular, they are not designed as flexible cables.
  • the connecting piece 58 has two operating fluid connections 49 ', 50', which are provided for connecting the control valves 49, 50.
  • the control valves 49, 50 may alternatively be integrated into the connecting piece 58.
  • the connecting piece 58 is in particular provided for changing an operating medium pressure and / or a quantity of operating medium in at least one of the pressure volumes 27, 28, 29, 30.
  • An embodiment of the connecting piece 58 is basically independent of a subdivision of the conveying clock 14 into sections 18.
  • the connector 58 in which the connector 58 is provided for controlling the fluid pressure and / or the amount of fluid in all the pressure volumes 27, 28, 29, 30, the connector 58 includes a plurality of valve recesses 61.
  • the valve recesses 61 are optional for receiving Installation valves 59 or 60 are provided for receiving slide shafts.
  • the connecting piece 58 comprises a plurality of slide shafts 60, which are arranged axially displaceable within the valve recesses 61.
  • the connector 58 may include a plurality of cartridge valves 59 inserted into the valve recesses 61.
  • the spool shafts 60, or equivalently the cartridge valves 59, are provided to connect the fluid ports 31 ', 35', 49 ', 50' differently with each other.
  • the slide shafts 60 and / or the installation valves 59 By means of the slide shafts 60 and / or the installation valves 59, in particular the operating medium pressure and / or the quantity of operating medium in the pressure volume 27, 28, 29, 30 can be changed.
  • the slider shafts 60 can be controlled hydraulically and / or electrically.
  • installation valves 59 in particular solenoid valves are advantageous. In principle, however, other valves can be used.
  • the adjusting unit For controlling the adjusting cylinder unit 47, the adjusting unit comprises a further control valve 51.
  • the control valve 51 is arranged between the hydraulic line 31, which is designed as a supply line, and the two hydraulic lines 36, 37, to which the plunger cylinders of the adjusting cylinder unit 47 are connected.
  • the control valve 51 is also designed as a 4/3-way valve. It is connected in parallel to the control valve 48.
  • the control valve 51 also comprises in the illustrated embodiment, two actuators for driving. In principle, one of the control valves 48, 51 can also be actuated hydraulically and connected to the other control valve 48, 51, whereby the actuators of the corresponding control valve 48, 51 can be dispensed with.
  • the pump device in the illustrated embodiment comprises two position sensors 62, 63, which are provided to provide a signal when the pipe switch 44 is completely switched.
  • the pump device may also have a displacement sensor, which is provided to detect a current position of the plunger cylinder.
  • the control unit 17 is provided to detect by means of the position sensors 62, 63 a complete switching of the pipe switch 44 in their switching positions.
  • any desired sensors can be used to detect the changeover of the pipe switch 44, for example magnetic field sensors or electrical resistance sensors.
  • a delivery cycle 14 in which the first delivery piston 12 performs a pumping stroke and the second delivery piston 13 performs a suction stroke, the control valve 48 is switched to the first switching position.
  • the control valve 51 for controlling the pipe switch 44 is connected in this conveyor cycle 14 in the second switching position.
  • the first pressure volume 27 of the first drive cylinder 23 the drive piston 25 with the pump for the stroke provided first delivery piston 12 is connected, acted upon by an operating medium pressure.
  • the second pressure volume 29 of the first drive cylinder 23 decreases.
  • the operating medium displaced from the second pressure volume 29 flows into the second pressure volume 30 of the second drive cylinder 24 via the hydraulic line 34 designed as a rocker line, whereby the second drive piston 26 moves in opposite directions is moved to the first drive piston 25.
  • the second delivery piston 13 thereby performs the suction stroke.
  • the first pressure volume 28 of the second drive cylinder 24 is depressurized.
  • the control valve 48 is switched to drive the drive cylinder 23, 24 in the middle switching position. Subsequently, the control valve 51 is switched to control the pipe switch 44 in the first switching position. Once the pipe switch 44 is switched, the control valve 48 is switched to drive the drive cylinder 23, 24 in the second switching position, whereby in the next delivery cycle 14 of the first delivery piston 12 performs a suction stroke and the second delivery piston 13 a pumping stroke.
  • the operating medium pressure which prevails in the pressure volume 27, 28, 29, 30 of the drive cylinders 23, 24, corresponds to the feed pressure 16 of the corresponding delivery piston 12, 13 during a delivery cycle 14.
  • the feed rate 15 depends the corresponding delivery piston 12, 13 during the conveying cycle 14, from properties of the concrete, in particular a flow rate, which has the concrete, and the feed pressure 16, the hydropump 40 provides maximum, from.
  • the feed rate 15 is thus limited by the maximum available from the hydraulic pump 40 operating medium pressure.
  • the feed rate 15 can thus be adjusted in particular by changing the amount of working fluid provided by the hydraulic pump 40 and / or by changing the maximum pressure provided by the hydraulic pump 40.
  • the control and regulating unit 17 are thus the feed pressure 16 and the feed rate 15 of the delivery piston 12, 13 changeable.
  • the control and regulation unit 17 is intended to subdivide the delivery cycle 14 into a plurality of subsections 18.
  • the feed rate 15 and the feed pressure 16 are individually definable for each of the sections 18.
  • the subsections 18 into which the control unit 17 subdivides each conveying cycle 14 are formed as path sections in the illustrated embodiment.
  • the delivery pistons 12, 13 are movable over a maximum distance, which is defined by the two dead centers of the corresponding delivery piston 12, 13.
  • the control unit 17 divides this distance of each delivery piston 12, 13 in each equal-sized path sections.
  • the path sections then form the sections 18, for which the feed rate 15 and the feed pressure 16 of the corresponding delivery piston 12, 13 are each individually adjustable.
  • the diverter 44 is intended to be switched independently of a subdivision of the at least one conveying clock 14 in the two sections 18.
  • the sections 18 are thus independent of a current switching state of the pipe switch 44.
  • the pipe switch 44 is intended to be switched between two Födertakten, i. the pipe switch 44 is switched between the switching positions, while the delivery pistons 12, 13 are in the dead centers. A movement of the delivery piston 12, 13 is thereby inhibited, while the transfer tube 44 is switched. A changeover of the pipe switch 44 is separated in time from the conveying files 14.
  • the diverter 44 is switched to one of the switching positions, ie is in an end position and is not switched to an intermediate state between the switching positions.
  • the sections 18 thus divide only the conveyor cycle 14 regardless of the switching of the pipe switch 44th
  • control and regulation unit 17 is provided for subdividing the delivery cycle 14 into the at least two subsections 18, after the transfer tube 44 has been switched to one of its switching positions.
  • the control unit 17 is provided to detect by means of the position sensors 62, 63, the complete switching of the pipe switch 44 in one of its switching positions.
  • the switching of the pipe switch 44 with at least one of the conveyor cycle 14 overlap at least partially in time.
  • the control and regulating unit 17 is provided to pressurize at least one of the pressure volumes 27, 28, 29, 30, which are bounded by the drive cylinders 23, 24 for the delivery pistons 12, 13, to the pressure corresponding delivery piston 12, 13 to adjust, while at the same time the Verstellzylinderussi 47 of the pipe switch 44 is pressurized.
  • control and regulation unit 17 is provided in at least one operating mode, in addition to the two subsections 18, in which the control unit 17 subdivides the delivery cycle 14, at least provide a further subsection, for the adjustment of the diverter valve 44 is provided.
  • the sections 18 are independent of a current switching state of the pipe switch 44.
  • the other provided for the adjustment of the pipe switch 44 sections depend on the current switching state of the pipe switch 44.
  • further subsections 18 can also be provided for the switching over of the pipe switch 44.
  • the first section 18 and the last section 18 of a conveyor cycle 14 can be provided for the switching over of the pipe switch 44.
  • the further subdivision of the conveying cycle 14 into the at least two subsections 18 is fundamentally independent of the subsections which are provided for the switching over of the diverter 44.
  • the sections that are provided for the conversion of the pipe switch 44, thereby setpoint specifications for a switching pressure and / or a switching speed of the adjusting cylinder unit 47 are provided.
  • the operating unit 19 comprises vehicle-fixed operating elements and a remote control.
  • the parameters that can be input by means of the operating unit 19 are designed as setpoint specifications for the corresponding section 18 and provided for adjusting the feed rate 15 and the feed pressure 16 by the control and regulation unit 17.
  • At least one parameter can be entered for each subsection 18.
  • the control unit 17 adjusts in particular the speed of the prime mover 41 and the inclination angle of the swash plate 42 of the hydraulic pump 40 in order to set at least the feed rate 15 according to the setpoint specifications.
  • the parameters which can be input by means of the operating unit 19 are designed as values for the feed rate 15.
  • the operating unit 19 has in the illustrated embodiment, a first switch 52, by means of which a number of sections 18, in which the control unit 17 subdivides the conveyor cycle 14, is adjustable.
  • the operating unit 19 a switch 53, by means of which for each section 18 as a parameter, the feed rate 15 is predetermined.
  • the control unit 19 also has an additional switch 54, by means of which the setpoint input the feed pressure 16 can be set for each section 18 as a parameter.
  • the switch 54 can be formed, for example, by means of a touchscreen. In principle, however, another assignment of the illustrated switches 52, 53, 54 is conceivable. In particular, it is conceivable that the switches 53, 54 each for setting Setpoint specifications are provided as parameters for part of the sections 18.
  • the switches 52, 53, 54 are preferably provided on the remote control.
  • the one switch 53 for setting a setpoint input for the feed rate 15 in the first sections 18 and the other switch 54 for setting a setpoint input for the feed rate 15 can be provided in a further sections 18.
  • the control and regulation unit 17 is provided to independently calculate setpoint specifications for the remaining sections 18 for which the operator has not entered any desired value specification. Based on the setpoint inputs entered by the operator for the individual subsections 18, for example for the first subsection 18 and the fifth subsection 18, the control and regulation unit 17 then interpolates the setpoint allocations for the remaining subsections 18, for example by specifying them for the first to fifth subsections 18 sets a steadily increasing amount of equipment and for the fifth to last section 18 a steadily decreasing amount of equipment as setpoint specifications. Both the individual setpoint specifications for the interpolation of all setpoint specifications as well as the directly entered setpoint specifications for all sections 18 can optionally be set variably or fixed values are specified.
  • the slurry pump has a sensor unit.
  • the sensor unit is provided for determining the feed rate 15 and for determining the feed pressure 16.
  • the sensor unit comprises a pressure sensor 20, a displacement sensor 21 and a position sensor 22.
  • the sensor unit may be additionally provided for monitoring the feed rate 15 and / or the feed pressure 16.
  • the sensor unit comprises a rotational speed sensor 57 for determining the rotational speed of the prime mover 41.
  • the pressure sensor 20 is provided.
  • the operating pressure in turn is directly proportional to the feed pressure 16.
  • the control unit 17 directly determine the feed pressure 16.
  • the displacement sensor 21 for determining the feed rate 15 of the delivery piston 12 may have different configurations.
  • the displacement sensor 21 may be formed as a cable sensor, in which a distance change is transmitted via a cable to a sensor wheel whose rotational movement is detected by a corresponding rotary encoder.
  • other configurations such as with electrical sensors that determine the distance based on an electrical resistance, or optical encoders conceivable.
  • the position sensor 22 is provided for determining a position of the delivery piston 13. By the movement-technical coupling of the two delivery pistons 12, 13 via the hydraulic line 34, the position of the delivery piston 13 basically corresponds to the opposite position of the delivery piston 12.
  • the position sensor 22 is used in particular for adjusting the positions of the delivery piston 12, 13.
  • the position sensor 22 for a control of other components can be used.
  • the position sensor 22 and / or an equivalently arranged position sensor provided for determining a position of the delivery piston 14 may be provided for subdividing the delivery cycle 14 into the subsections 18, which in this case are path sections and in which the feed rate 15 and / or the feed pressure 16 are individually adjustable.
  • the setting unit is provided for the two delivery pistons 12, 13 different feed rates 15 and different Feed pressure 16 set.
  • a delivery cycle 14 thereby, the delivery piston 12, 13, which performs a pumping stroke, at least temporarily a different feed rate 15 and a different feed pressure 16 than the delivery piston 12, 13, which executes a suction stroke.
  • the sensor unit is provided in particular to determine the feed rates 15 of the two delivery pistons 12, 13 separately from each other.
  • the control valve 49 is arranged between the hydraulic line 32 for supplying the first drive cylinder 23 and the hydraulic line 34 designed as a ram line.
  • the second control valve 50 is arranged between the hydraulic line 33 for supplying the second drive cylinder 24 and the hydraulic line 34 designed as a ram line.
  • the further control valves 49, 50 are provided to change an amount of operating fluid into the second pressure volume 29, 30 of the drive cylinders 23, 24 and the hydraulic line 34 which connects the pressure volumes 29, 30.
  • the control valves 49, 50 are designed as proportional valves.
  • the hydraulic line 32, 33 of the drive cylinder 23, 24, which performs a pumping stroke a much higher operating medium pressure than the hydraulic line 32, 33 of the drive cylinder 23, 24, which performs a suction stroke.
  • the operating medium pressure in the hydraulic line 34 designed as a rocker line is substantially lower than the operating medium pressure in the hydraulic line 32, 33 of the drive cylinder 23, 24, which carries out a pumping stroke.
  • the operating pressure in the hydraulic line 34 is equal to the feed pressure 16 necessary for drawing concrete from the material feed tank 38, while the operating pressure in the hydraulic line 32, 33 of the drive cylinder 23, 24 performing a pumping stroke corresponds to the feed pressure 16 is necessary to push the concrete in the delivery line 39.
  • the setting unit is provided to specify for the delivery piston 12, 13 different feed rates 15 and different feed pressures 16, the setpoint specifications for the feed rate 15 of the delivery piston 12, 13, which performs the pumping stroke, and the setpoint specifications for the feed rate 15 of the delivery piston 12th , 13, which performs the suction stroke, in the individual sections 18 have different values (see. FIG. 2 ).
  • the control valves 48, 49 remain closed (see. FIG. 3 ).
  • the sensor unit has two flow sensors 55, 56, which are provided to determine the change in the quantity of operating fluid in the pressure volume 29, 30 and the hydraulic line 34.
  • the flow sensors 55, 56 are each connected in series with one of the control valves 49, 50. Based on the measured change in the amount of resources, the control unit 17, starting from the feed rate 15 of the first delivery piston 12, the feed rate 15 of the second delivery piston 13 determine.
  • the position sensor 22 is used in particular for the verification of the thus determined feed rate 15.
  • the control and regulation unit 17 is in particular provided by changing the feed pressure 16, the feed rates 15 to the To adjust setpoint specifications.
  • the control and regulating unit 17 may additionally or alternatively be provided to control the feed pressure 16 to setpoint specifications.
  • the control and regulating unit 17 is provided to change the speed of the drive machine 41 and the inclination angle of the swash plate 42 of the hydraulic pump 40 in addition to the control of the control valves 48, 49, 50.
  • control and regulation unit 17 divides the delivery cycle 14 into the subsections 18, an operator sets a number of the subsections 18 with the switch 52 as setpoint specification. Via the switch 53, the operator sets parameters for the feed rates 15 as setpoint specifications. Subsequently, the control unit 17 turns on the hydraulic pump 40 and increases the speed of the engine 41 to a value resulting from the setpoint specifications.
  • the feed rate 15 is controlled by the feed pressure 16 dependent.
  • the delivery pistons 12, 13 are subjected to the highest possible feed pressure 16, which is possible by controlling the hydraulic pump 40 and the drive machine 41.
  • the maximum acceleration of the concrete in the delivery cylinder 10, 11, which performs a pumping stroke compressed.
  • setpoint specifications for the feed pressure 16 as a function of which the feed rate 15 is controlled a value is stored in which an optimal compression is given. If the setpoint specification for the feed pressure 16 at the pressure sensor 20 is reached and the concrete is sufficiently compressed, then the acceleration of the feed pistons 12, 13 is stopped.
  • the delivery pistons 12, 13 continue, for example, at a constant feed rate 15.
  • 11 is pushed out.
  • the delivery pistons 13 in the subsections 18 are each moved at a constant feed rate 15 until the next subsection 18 is reached.
  • the next section 18 may have 16 different setpoint specifications for the feed rate 15 and / or the feed pressure.
  • the feed rate 15 is accelerated or decelerated again until the corresponding setpoint specification is reached.
  • the feed rate 15 of the delivery pistons 12, 13 is reduced to zero.
  • the pipe switch 44 is switched and the next conveyor cycle 14 can begin.
  • control and regulating unit 17 has a memory which is provided for storage of sequence programs.
  • the sequence programs can be predefined, i. the sequence programs are stored by the manufacturer in the memory.
  • an operator can store his own sequence programs, or that the operator can change the predefined sequence programs.
  • the sequence programs correspond to a set of freely definable setpoint specifications. The operator can select and / or change the different sequence programs by means of the switches 52, 53, 54.
  • control unit 17 determines setpoint specifications for the feed rate 15 and / or the feed pressure 16 independently.
  • control unit 17 provides target value specifications for the feed rate 15 and / or the feed pressure 16, the one Can accept or change the operator.
  • the operating unit 19 may be provided for inputting a concrete code as a parameter, on the basis of which the control and regulation unit 17 determines the setpoint specifications.
  • the concrete code is preferably provided by a supplier, such as a concrete plant or a mixing plant, of the concrete to be pumped, for example in the form of an online transmission, in the form of a bar code or in the form of an RFID tag.
  • a supplier such as a concrete plant or a mixing plant
  • the concrete code defines essential properties of the concrete to be pumped. For this operating mode 17 setpoint specifications are stored in the control and regulating unit, which are selected and activated when entering the appropriate concrete code.
  • the sensor unit may for example comprise a sensor which is provided to determine essential properties of the concrete, in particular its flow velocity.
  • a characteristic curve is stored for such an operating mode, which determines setpoint specifications for the feed rate 15 and the feed pressure 16 depending on the properties of the concrete for the individual sections 18 of the conveyor cycle 14.
  • the control and regulating unit 17 can have different characteristics for the delivery piston 12, 13, which carries out the pumping stroke, and the delivery piston 12, 13, which executes the suction stroke.
  • control and regulating unit 17 may have an operating program in which secondary parameters are used for the determination of the setpoint specifications. Secondary parameters are in particular parameters that are not determined directly in the slurry pump.
  • the sensor unit has sensors for this operating mode which are provided, for example, for determining a movement of the arm or for determining supporting forces. Recognizes the control unit 17 based on these secondary parameters one Oscillation of the boom, which is due to the slurry pump, the control unit 17 changes the setpoint specifications for the individual sections 18 of the conveyor cycle 14. By means of the setting unit, the control unit 17 thereby changes the feed rate 15 and the feed pressure 16 in the individual Subsections 18 of the conveyor cycle 14 until the vibrations are minimized.
  • control unit 17 In particular, in the operating modes in which the control unit 17 independently changes the feed rate 15 and the feed pressure 16 in the individual sections 18, the control unit 17 is provided to determine a degree of filling of the delivery cylinders 10, 11. The control unit 17 calculates an expected degree of filling and changes the feed rate 15 and the feed pressure 16 until the filling wheel is at a maximum. In the modes of operation in which the control unit 17 determines the degree of filling, the control unit 17 is provided to maximize the degree of filling.
  • control unit 17 is provided to set a feed rate command value 15 and / or the feed pressure 16 which is set when subdividing the feed clock 14 into the sections 18 with an actual feed rate value 15 and / or. or to compare the feed pressure 16 actually achieved during the corresponding subsection 18. If the control and regulation unit 17 detects a deviation between the actual value and the setpoint value, the control and regulation unit 17 is provided in the corresponding operating mode for the setpoint for the corresponding subsection in a subsequent delivery cycle 14 and / or in a subsequent subsection 18 18 adapt. In addition, the control and regulation unit 18 is provided for comparing actual values of successive subsections 18 in relation to the associated desired values.
  • control unit 17 is then provided to change the setpoint for the feed rate 15 and / or the feed pressure 16 in the subsequent conveyor cycle 14.
  • control and regulating unit 17 can also be provided to change the subdivision into the subsections 18, ie in particular a number or length of the subsections 18, in the event of a deviation between the desired value and the actual value in the subsequent conveying cycle 14.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP14161785.2A 2013-05-02 2014-03-26 Pompe à liquides épais Not-in-force EP2799712B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013104494.8A DE102013104494B4 (de) 2013-05-02 2013-05-02 Dickstoffpumpe

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EP2799712A2 true EP2799712A2 (fr) 2014-11-05
EP2799712A3 EP2799712A3 (fr) 2014-11-12
EP2799712B1 EP2799712B1 (fr) 2021-10-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101994392B1 (ko) * 2018-03-21 2019-06-28 가천대학교 산학협력단 콘크리트 펌프차량의 콘크리트 펌핑 시스템 및 방법
CN111852806A (zh) * 2020-06-17 2020-10-30 中国中元国际工程有限公司 一种跑道融雪复合管用注浆泵及其工作方法
DE102019214034A1 (de) * 2019-09-13 2021-03-18 Putzmeister Engineering Gmbh Verfahren zum Betreiben einer Arbeitsmaschine und Arbeitsmaschine
US11149725B2 (en) 2016-01-20 2021-10-19 Weir Minerals Netherlands B.V. Hydraulic pump system for handling a slurry medium
CN115917145A (zh) * 2020-06-26 2023-04-04 普茨迈斯特工程有限公司 用于输送建筑材料和/或泥浆的建筑材料-和/或泥浆泵及其运行方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013104494B4 (de) 2013-05-02 2023-11-30 MPS-Matter Pumpsysteme GmbH Dickstoffpumpe
DE102018208263A1 (de) * 2018-05-25 2019-11-28 Putzmeister Engineering Gmbh Vorrichtung zur Förderung von Dickstoff
DE102021202325A1 (de) 2021-03-10 2022-09-15 Putzmeister Engineering Gmbh Verfahren zum Betreiben einer Bau- und/oder Dickstoffpumpe zum Fördern von Bau- und/oder Dickstoff und Bau- und/oder Dickstoffpumpe zum Fördern von Bau- und/oder Dickstoff
DE102021107139A1 (de) * 2021-03-23 2022-09-29 Putzmeister Engineering Gmbh Betriebsüberwachung für ein Dickstofffördersystem
DE102024103029A1 (de) * 2024-02-02 2025-08-07 Putzmeister Engineering Gmbh Verfahren zum Betreiben eines Bau- und/oder Dickstoffpumpensystems und Bau- und/oder Dickstoffpumpensystem

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10150467A1 (de) 2001-10-16 2003-04-17 Putzmeister Ag Dickstoffpumpe mit Fördermengenregelung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19503986A1 (de) * 1995-02-07 1996-08-08 Hudelmaier Ulrike Verfahren und Vorrichtung zum Fördern von Beton oder anderen Dickstoffen
ITMI981571A1 (it) * 1998-07-09 2000-01-09 Cifa Spa Pompa per cacestruzzo con mezzi di modulazione della velocita'dei pistoni dei cilindri del gruppo pompante
US6779983B1 (en) * 2001-10-05 2004-08-24 David A. Olson Sludge pump with management system
JP4129761B2 (ja) 2002-01-25 2008-08-06 石川島建機株式会社 往復動型粘性流体ポンプの運転制御装置
DE10343802B4 (de) * 2003-09-22 2007-12-06 Schwing Gmbh Kolben-Dickstoffpumpe mit kontinuierlichem Förderstrom
DE102004009362B4 (de) 2004-02-26 2008-01-24 Schwing Gmbh Kolben-Dickstoffpumpe
DE102004015416A1 (de) 2004-03-26 2005-10-13 Putzmeister Ag Vorrichtung und Verfahren zur Steuerung einer Dickstoffpumpe
FR2965313B1 (fr) 2010-09-29 2012-09-07 Exel Ind Procede, dispositif et moyen d'entrainement de pompe a double effet a mouvement lineaire alternatif
DE102013104494B4 (de) 2013-05-02 2023-11-30 MPS-Matter Pumpsysteme GmbH Dickstoffpumpe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10150467A1 (de) 2001-10-16 2003-04-17 Putzmeister Ag Dickstoffpumpe mit Fördermengenregelung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11149725B2 (en) 2016-01-20 2021-10-19 Weir Minerals Netherlands B.V. Hydraulic pump system for handling a slurry medium
KR101994392B1 (ko) * 2018-03-21 2019-06-28 가천대학교 산학협력단 콘크리트 펌프차량의 콘크리트 펌핑 시스템 및 방법
DE102019214034A1 (de) * 2019-09-13 2021-03-18 Putzmeister Engineering Gmbh Verfahren zum Betreiben einer Arbeitsmaschine und Arbeitsmaschine
US12215509B2 (en) 2019-09-13 2025-02-04 Putzmeister Engineering Gmbh Method for operating a working machine, and working machine
CN111852806A (zh) * 2020-06-17 2020-10-30 中国中元国际工程有限公司 一种跑道融雪复合管用注浆泵及其工作方法
CN115917145A (zh) * 2020-06-26 2023-04-04 普茨迈斯特工程有限公司 用于输送建筑材料和/或泥浆的建筑材料-和/或泥浆泵及其运行方法

Also Published As

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EP2799712A3 (fr) 2014-11-12
DE102013104494A1 (de) 2014-11-06
DE102013104494B4 (de) 2023-11-30
EP2799712B1 (fr) 2021-10-06

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