US20150330374A1 - Thick-matter pump for producing a continuous thick-matter flow and method for operating a thick-matter pump for producing a continuous thick-matter flow - Google Patents

Thick-matter pump for producing a continuous thick-matter flow and method for operating a thick-matter pump for producing a continuous thick-matter flow Download PDF

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Publication number
US20150330374A1
US20150330374A1 US14/424,950 US201314424950A US2015330374A1 US 20150330374 A1 US20150330374 A1 US 20150330374A1 US 201314424950 A US201314424950 A US 201314424950A US 2015330374 A1 US2015330374 A1 US 2015330374A1
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Prior art keywords
pump
thick
matter
charge
line
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Abandoned
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US14/424,950
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English (en)
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Gerhard Hudelmaier
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Assigned to HUDELMAIER, GOTZ reassignment HUDELMAIER, GOTZ ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HUDELMAIER, GERHARD
Publication of US20150330374A1 publication Critical patent/US20150330374A1/en
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    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
    • 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
    • F04B2015/026—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 with a priming plunger or piston ahead of the pumping piston and connected on the same piston rod
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/86131—Plural

Definitions

  • the present invention relates to a thick-matter pump for producing a continuous thick-matter flow, and to a method for operating a thick-matter pump for producing a continuous thick-matter flow.
  • a thick-matter pump consists of two pump units which alternate in pumping and suction operation, a delivery line, a suction line with, attached thereto, a charge-pressure device, which acts separately from the pump units for actively bringing about a thick-matter compression, and a switchover device for switching between the pump units.
  • one pump unit is connected in pumping operation to the delivery line and one pump unit is connected in suction operation to the suction line, and the charge-pressure device compensates for the loss of efficacy of the sucking cylinder and compresses the thick matter. In this way the conversion process is bypassed and an interruption of the pumping process is thus avoided.
  • Such a thick-matter pump is described for example in EP 1235 982 A1 or EP 1 599 672 A1.
  • the thick matter to be pumped generally may not remain in the pump system, at least with long interruptions of the pumping process. These matters are often dispersions with water, which dry out and harden.
  • concrete is pumped. The admixed cement and the water enter into a chemical reaction, which allows the thick matter to harden after just a short period of time. The concrete must therefore be removed from the entire system, from the suction line to the end of the delivery line, during a relatively long interruption or at the end of the pumping time.
  • this is achieved by emptying the delivery line by introducing a separating element, for example a sealing rubber ball, into the delivery line, after which a water column or a compressed air cushion is pressed by means of the pump unit in the direction of the outlet of the delivery line, such that the content is emptied via said outlet and the line can be cleaned.
  • a separating element for example a sealing rubber ball
  • the present disclosure describes a pump system that overcomes the above-mentioned problems.
  • the thick-matter pump for producing a continuous thick-matter flow includes at least two pump units which alternate in pumping and suction operation, a suction line with a charge-pressure device which acts separately from the pump units for actively bringing about a thick-matter compression, a delivery line, and a switchover device for switching between the pump units, wherein, in a first operating state, by way of the switchover device, at least one first pump unit is connected during pumping operation to the delivery line and at least one second pump unit is connected during suction operation to the suction line.
  • At least one first pump unit is connected during suction operation to the delivery line and at least one second pump unit is connected during pumping operation to the suction line, and the charge-pressure device is switched to an inactive state.
  • the first operating state is understood to mean the operating state in which the matter is pumped through the delivery line in the direction of the outlet end thereof. This is regular pumping operation, in which the thick-material volume, for example the concrete volume, is pumped to the point of destination.
  • the second operating state is the operating state in which the delivery line is emptied.
  • the delivery line is emptied by reversing the switchover device by way of the two pump devices.
  • the delivery line is pumped empty. Switching to and fro between the first and the second operating state may also loosen a “blockage” in the delivery line and may thus enable regular pumping operation again in the first operating state.
  • the charge-pressure device may be switched to an inactive state in order to allow a problem-free reversal of the pumping action.
  • the position of a slide of the switchover device for rerouting between the first and the second operating state is, in one embodiment, reversible.
  • it is possible to switch between the two operating states by the reversed operation of the slide of the switchover device that is to say an operation phase-shifted by 180° in the second operating state compared with the first operating state.
  • the charge-pressure device is switched to an inactive state in the second operating state, whereas it is used in the first operating state to actively bring about the thick-matter compression.
  • the running direction of at least a first and a second pump unit is, in certain embodiments, reversible in order to switch between the first and the second operating state, wherein the reversal can, in some embodiments, be performed by switching the running direction of the respective drive cylinder of the respective pump units.
  • the charge-pressure device such that it can be switched to an inactive state by connection to a storage container, wherein the charge-pressure device is, in some embodiments, connectable to a storage container by opening a slide gate valve.
  • the charge-pressure device in various embodiments, includes a drive cylinder/delivery cylinder unit.
  • the charge-pressure device can thus be switched to an inactive state in that the piston of the delivery cylinder of the charge-pressure device closes the outlet end thereof and remains there in the second operating state.
  • the charge-pressure device is thus prevented from lowering the pump efficiency in the second operating state.
  • Mechanically, hydraulically, pneumatically or electrically actuatable switching elements for influencing the function of the pump units and the charge-pressure device are, in certain embodiments, provided, wherein the signals for actuation of the switching elements can be interrupted.
  • the thick-matter content of the delivery line, the pump units and the suction line can be pumped into a storage container.
  • the system can thus be emptied reliably into an easily accessible region.
  • a line extension can be connected to the inlet end of the suction line, and in some embodiments, within a storage container.
  • the content of the delivery line can be pumped via the line extension in the second operating state.
  • a first pump unit is advantageously connectable in pumping operation to the delivery line and a second pump unit is advantageously connectable in suction operation to the suction line, without switching on the effect of the charge-pressure device.
  • FIG. 1 schematically shows a thick-matter pump of the present disclosure in the first operating state
  • FIG. 2 schematically shows the thick-matter pump of FIG. 1 in the second operating state
  • FIG. 3 schematically shows the thick-matter pump of FIG. 1 in an alternative embodiment of the second operating state
  • FIG. 4 schematically shows the use of a thick-matter pump when fighting a fire.
  • FIG. 1 illustrates a thick-matter pump in the first operating state, that is to say the situation normally occurring when pumping concrete.
  • FIG. 1 a pumping device for producing a continuous thick-matter flow is illustrated in FIG. 1 .
  • a first pump unit 1 is connected via a switchover device 7 to a delivery line 5 .
  • a second pump unit 2 is connected to the suction line 4 and a charge-pressure device 3 fitted thereon.
  • the necessary connections of the pump units 1 , 2 can be produced alternately via the respective position of a slide 17 of the switchover device 7 .
  • a storage container 9 flange-mounted to the suction line 4 can be separated from the suction line 4 by means of a slide gate valve 8 .
  • the delivery line 5 is typically a delivery line system consisting of piping, a distributor mast or fixedly laid lines at a construction site.
  • the first pump unit 1 pushes thick matter into the delivery line 5 .
  • the second pump unit 2 and the charge-pressure device 3 suck thick matter from the storage container 9 until the piston of the delivery cylinder 12 of the sucking pump unit 2 overruns the switching point 10 .
  • the switching point 10 prompts the closure of the slide 8 and launches the fully filled charge-pressure device 3 , which pushes thick matter against the closed slide gate valve 8 and thus into the sucking pump unit 2 until this is largely or completely full, the thick matter located therein is compressed, and the delivery piston 12 has reached the end position thereof with the switching point 11 .
  • the switchover device 7 is actuated by this switching point 11 .
  • the first pump unit 1 is now connected to the suction line 4 and the second pump unit 2 is connected to the delivery line 5 .
  • the charge-pressure device 3 pushes further directly into the delivery line 5 in order to close a delivery gap that has formed.
  • the slide gate valve 8 opens.
  • the charge-pressure device 3 is switched and, together with the pump unit 2 then in suction operation, sucks thick matter from the storage container 9 .
  • the described operating cycle then starts again from the beginning in the first operating state.
  • the charge-pressure device 3 corrects the interruptions of the thick-matter flow appropriately, such that a continuous thick-matter flow is produced in a direction, specifically the delivery direction.
  • FIG. 2 shows the thick-matter pump of FIG. 1 in the second operating state, which is used to empty the delivery line 5 or to apply an oscillating thick-matter movement in the delivery line 5 .
  • the switchover device 7 via which the pump units 1 , 2 are connected, is switched over or reversed.
  • the first pump unit 1 which is in suction operation, is thus now connected to the delivery line 5 .
  • the second pump unit 2 which is in pumping operation, is connected accordingly to the suction line 4 .
  • the slide gate valve 8 must be open.
  • the charge-pressure device 3 must be switched to an inactive state for efficient operation of the thick-matter pump in the second operating state.
  • the delivery piston 14 of the delivery cylinder of the charge-pressure device 3 is to be moved to the outlet 18 and is to be held there during operation of the thick-matter pump in the second operating state in order to close the outlet end 18 of the delivery cylinder of the charge-pressure device 3 .
  • the charge-pressure device 3 is already switched to an inactive state by the opening of the slide gate valve 8 .
  • the delivery cylinder of the charge-pressure device 3 is thus emptied and no longer has to be taken into consideration during cleaning procedures.
  • the switchover device 7 continues to be operated analogously, but phase-shifted by approximately 180° in relation to operation in the first operating state. Accordingly, in the next process step, the second pump unit 2 , which is then in suction operation, is now connected to the delivery line 5 .
  • the first pump unit 1 which is in pumping operation, is connected accordingly to the suction line 4 .
  • the entire delivery line 5 can be pumped empty in this way.
  • the inlet opening of the suction line 4 in the storage container 9 has a connector 15 for an extension line 16 , via which the content of the delivery line 5 can be conveyed further, for example into a truck mixer or a recycling facility.
  • the action of the charge-pressure device 3 is cancelled via switching elements. These can be actuated mechanically, hydraulically, pneumatically or electrically and also by light and magnetic waves. In some cases it may be advantageous to design the signals for actuation of the switching elements such that said signals can be interrupted.
  • the pump system 1 , 2 , 3 inclusive of the suction line 4 and the delivery line 5 should be emptied with relatively long interruptions or at the end of the pumping operation. Should this not be possible via the outlet end of the delivery line 5 , the content of the pump system inclusive of the delivery line can be pumped at least into the storage container 9 . If the thick-matter volume in the system formed of delivery line 5 , pump system 1 , 2 , 3 and a suction line 4 is not too large, the storage container 9 is generally able to receive the quantity. There, the thick matter can remain in the short term, can be treated or can be disposed of.
  • an extension 16 can be attached at the inlet end 15 of the suction line 4 in the storage container 9 , whereby the extension allows the content to be pumped into a larger vessel, for example a provided truck mixer.
  • a continuous thick-matter flow may be inhibiting.
  • a temporary switchover from pumping operation to suction operation and vice versa may be necessary, that is to say a brief switchover from the first operating state into the second, and vice versa.
  • the corresponding connections of the pump units 1 , 2 to the delivery line 5 or the suction line 4 should therefore be switchable, without being influenced by the action of the charge-pressure device 3 .
  • a temporary switchover of the pump units 1 , 2 should be possible at each position of the pistons 12 , 13 in the delivery cylinders.
  • the switchover device 7 retains its position and phase as in the first operating state.
  • the functions of the pump units 1 , 2 are reversed by reversing the running direction of the drive cylinders 21 , 22 of the pump units 1 , 2 .
  • the operation of the pump units 1 , 2 in the second operating state is reversed or phase-shifted by approximately 180° compared to the first operating state.
  • the content of the first pump unit 1 which is now located in pumping operation as a result of the reversal of the operation of the pump unit 1 , is still connected to the suction line 4 , whereby the content is pushed back into the storage container 9 by the open slide gate valve 8 .
  • the second pump unit 2 is accordingly offset by the switch into suction operation and remains connected to the delivery line 5 , whereby this is sucked off.
  • the thick matter located in the second pump unit 2 passes via the suction line 4 and the open slide 8 likewise into the storage container 9 .
  • the charge-pressure device 3 is switched to an inactive state, in that the delivery piston 13 of the charge-pressure device is moved to the outlet end 18 of the delivery cylinder of the charge-pressure device 3 and is held there in the second operating state in order to close the outlet end 18 .
  • FIG. 4 schematically shows a use of a mobile thick-matter pump when fighting a large fire in industrial operation or when cooling a damaged electricity power station.
  • a further line 26 a can be connected thereto for connection to an extinguishing agent reservoir and/or coolant reservoir arranged at a further distance.
  • the thick-matter pump can be used in this way as an extended use possibility for extinguishing burning objects or for cooling objects to be cooled, wherein it can output an uninterrupted jet and a high volume with sufficient accuracy. Due to the structure of the thick-matter pump with the charge-pressure device 3 , the volume flow achieved here is uniform and much higher (up to 50%) compared with a device of equal dimensions without charge-pressure device. Furthermore, due to the constant flow, a higher target accuracy can be achieved, since the mast does not perform any unpredictable see-saw movements.
  • a coolant is sprayed here, for example onto a damaged power plant, this coolant must often also be sucked up again.
  • the coolant or the extinguishing agent typically collects on the floor, in hollows or in chambers arranged low down.
  • the coolant may become loaded with different materials, for example with radioactive isotopes or with material dissolved by the coolant. During suction, sand, wall fragments or other solid and suspended bodies are also sucked up.
  • the thick-matter pump proposed here can again pump off the coolant loaded with the respective materials, in particular the harmful substances and the solid and suspended bodies, via the mast of the mobile thick-matter pump.
  • the loaded coolant is pumped into a wastewater reservoir 25 by means of the line 25 a likewise attached to the extension line 15 .
  • the respective operator does not come into contact with the wastewater during this process.
  • the switchover between the wastewater reservoir 25 and the coolant or extinguishing agent reservoir 26 is achieved in the shown exemplary embodiment by corresponding slides 24 , which can each open just one line 25 a , 26 a.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US14/424,950 2012-08-28 2013-08-28 Thick-matter pump for producing a continuous thick-matter flow and method for operating a thick-matter pump for producing a continuous thick-matter flow Abandoned US20150330374A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012107933.1 2012-08-28
DE102012107933.1A DE102012107933B4 (de) 2012-08-28 2012-08-28 Dickstoffpumpe zur Erzeugung eines kontinuierlichen Dickstoffstroms sowie Verfahren zum Betrieb einer Dickstoffpumpe zur Erzeugung eines kontinuierlichen Dickstoffstroms
PCT/EP2013/067806 WO2014033162A1 (de) 2012-08-28 2013-08-28 Dickstoffpumpe zur erzeugung eines kontinuierlichen dickstoffstroms sowie verfahren zum betrieb einer dickstoffpumpe zur erzeugung eines kontinuierlichen dickstroffstroms

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US20150330374A1 true US20150330374A1 (en) 2015-11-19

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US14/424,950 Abandoned US20150330374A1 (en) 2012-08-28 2013-08-28 Thick-matter pump for producing a continuous thick-matter flow and method for operating a thick-matter pump for producing a continuous thick-matter flow

Country Status (6)

Country Link
US (1) US20150330374A1 (de)
EP (1) EP2890893A1 (de)
CN (1) CN104769281B (de)
DE (1) DE102012107933B4 (de)
HK (1) HK1212416A1 (de)
WO (1) WO2014033162A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170045042A1 (en) * 2014-04-30 2017-02-16 Anthony HURTER Supercritical water used fuel oil purification apparatus and process
US11231054B2 (en) * 2018-06-14 2022-01-25 Putzmeister Engineering Gmbh Hydraulic drive system for a construction material pump, and construction material pump
US11255317B2 (en) 2016-07-22 2022-02-22 Putzmeister Engineering Gmbh Thick material pump
US11629707B2 (en) * 2017-07-27 2023-04-18 Weir Minerals Netherlands B.V. Pump system for handling a slurry medium

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CN107355358A (zh) * 2017-08-04 2017-11-17 中铁工程装备集团隧道设备制造有限公司 无间隙连续泵送的活塞式泵送装置及其控制方法
CN110043438A (zh) * 2019-05-24 2019-07-23 徐州徐工施维英机械有限公司 糊状物料输送装置和工程车辆
CA3165638C (en) * 2020-01-23 2023-02-28 Simon Oman Submersible pump assembly and method for use of same
CN113338623A (zh) * 2021-06-01 2021-09-03 浙江鸿翔建设集团股份有限公司 一种混凝土泵送的压力补偿装置

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US4613290A (en) * 1984-04-23 1986-09-23 Lefco Western, Inc. Evacuated pumping system
US5451144A (en) * 1993-08-18 1995-09-19 French; George F. Air-operated pump
US6450779B1 (en) * 1997-08-13 2002-09-17 Schwing Gmbh Two-cylinder thick matter pump
US20030143089A1 (en) * 1999-11-29 2003-07-31 Gerhard Hudelmaier Thick matter pump

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DE102004009362B4 (de) * 2004-02-26 2008-01-24 Schwing Gmbh Kolben-Dickstoffpumpe
DE102009008517B4 (de) * 2009-02-11 2018-01-04 Götz Hudelmaier Hydraulischer Antrieb einer Dickstoffpumpe mit Ladedruckeinrichtung
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US3587236A (en) * 1969-11-17 1971-06-28 Royal Industries Pump
US3994626A (en) * 1971-09-20 1976-11-30 Stock Equipment Company Pump apparatus
US4613290A (en) * 1984-04-23 1986-09-23 Lefco Western, Inc. Evacuated pumping system
US5451144A (en) * 1993-08-18 1995-09-19 French; George F. Air-operated pump
US6450779B1 (en) * 1997-08-13 2002-09-17 Schwing Gmbh Two-cylinder thick matter pump
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Publication number Priority date Publication date Assignee Title
US20170045042A1 (en) * 2014-04-30 2017-02-16 Anthony HURTER Supercritical water used fuel oil purification apparatus and process
US11359616B2 (en) * 2014-04-30 2022-06-14 Anthony George HURTER Supercritical water used fuel oil purification apparatus and process
US11255317B2 (en) 2016-07-22 2022-02-22 Putzmeister Engineering Gmbh Thick material pump
US11629707B2 (en) * 2017-07-27 2023-04-18 Weir Minerals Netherlands B.V. Pump system for handling a slurry medium
US11231054B2 (en) * 2018-06-14 2022-01-25 Putzmeister Engineering Gmbh Hydraulic drive system for a construction material pump, and construction material pump

Also Published As

Publication number Publication date
WO2014033162A1 (de) 2014-03-06
HK1212416A1 (en) 2016-06-10
DE102012107933B4 (de) 2017-09-21
CN104769281A (zh) 2015-07-08
DE102012107933A1 (de) 2014-03-06
EP2890893A1 (de) 2015-07-08
CN104769281B (zh) 2018-01-19

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