EP0197402B1 - Dispositif pour transporter une suspension de liquide épais et procédé opérationnel - Google Patents

Dispositif pour transporter une suspension de liquide épais et procédé opérationnel Download PDF

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Publication number
EP0197402B1
EP0197402B1 EP86103935A EP86103935A EP0197402B1 EP 0197402 B1 EP0197402 B1 EP 0197402B1 EP 86103935 A EP86103935 A EP 86103935A EP 86103935 A EP86103935 A EP 86103935A EP 0197402 B1 EP0197402 B1 EP 0197402B1
Authority
EP
European Patent Office
Prior art keywords
delivery
cylinder piston
pumps
cylinder
piston pumps
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.)
Expired - Lifetime
Application number
EP86103935A
Other languages
German (de)
English (en)
Other versions
EP0197402A3 (en
EP0197402A2 (fr
Inventor
Klaus Dipl.-Ing. Janssen
Helmut Dipl.-Ing. Kämmerer
Helmut Dipl.-Ing. Renetzeder
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.)
Preussag AG Metall
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Preussag AG Metall
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 Preussag AG Metall filed Critical Preussag AG Metall
Priority to AT86103935T priority Critical patent/ATE53635T1/de
Publication of EP0197402A2 publication Critical patent/EP0197402A2/fr
Publication of EP0197402A3 publication Critical patent/EP0197402A3/de
Application granted granted Critical
Publication of EP0197402B1 publication Critical patent/EP0197402B1/fr
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
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0019—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers
    • F04B7/0026—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers and having an oscillating movement

Definitions

  • the invention relates to a device for conveying thick matter suspensions with at least two piston pumps, the delivery cylinders of which can be alternately connected to the inflow of a thick matter suspension and the pressure line via a slide, and wherein both two-cylinder piston pumps deliver into a common pressure line and the second two-cylinder piston pump is shifted in time by a quarter cycle the first works and a method for operating such a device.
  • These two-cylinder or twin-piston pumps which are also known under the name of concrete pumps, are long-stroke piston pumps with hydraulic drive, whereby the respective working cylinder is alternately connected to the pressure delivery line and the cylinder head opening by means of a slide element which is arranged in the region of the cylinder heads of the counter cylinder is released for the suction stroke.
  • Such a two-cylinder pump is described, for example, in DE-A-21 53 205, in which the cylinder is alternately designed with a pressure or suction line as a swivel tube, so that both cylinders have both pressure line and suction line in common.
  • the delivery pistons of the respective cylinders are driven hydraulically or, as is also known from DAS 21 06 713, via a pull rope.
  • twin piston pumps are also used in mining, for example for pumping backfilled mountains, for example floating mountains from ore processing to move underground rooms.
  • a disadvantage is the fact that the masses to be delivered in the delivery line, which are only to be pumped under high pump pressure, after each work interruption, i. H. after each slide actuation, must be started again and accelerated to the conveying speed.
  • the start-up pressure considerably exceeds the pressure required for the actual conveying, so that the installed power must be oversized in a corresponding order of magnitude and excessive energy consumption in turn occurs.
  • an oscillating deflector pump is proposed in DE-A-34 19 054, which wants to solve the wear and delivery problems by having a special design and arrangement of the cylinder and valve device and use of selected abrasion-resistant materials and special training of Cross-sections of the flow channels are selected and convey them alternately into a delivery line.
  • the working cycle of a pump cylinder of such a two-cylinder piston pump consists of the suction stroke and the shifting into the conveying position, that is to say four functions, three of which represent an interruption of the conveying process.
  • a conventional two-cylinder piston pump allows the two cylinders to perform suction or delivery strokes alternately, so that delivery takes place during the duration of two functions during the entire cycle duration of the four functions, but this is interrupted each time the slide is actuated.
  • twin piston pumps of the type described in the introduction are preferably switched on mutually accordingly via an electrical / electronic control, whereby, in contrast to the normal operation of the twin pump, the respective operating cycle of a cylinder does not start at full power, but rather starts up over a time-stretched phase and also also the end of the delivery stroke runs smoothly, d. H. doesn't suddenly end.
  • Fig. 1 the two pistons 1, 2 and the two cylinders 3, 4 of the one pump A are shown schematically and the pistons 5, 6 and the two cylinders 7, 8 of the second pump B.
  • the pump A delivers in the area 9 slide located in the delivery line 10, alternately from the cylinder 3 or 4 and the pump B delivers via a slide located in the area 11 into the delivery line 12, also alternately from the cylinder 7 or 8.
  • the delivery lines 10 and 12 open into a pressure line 13, a rotary valve slide 14 being provided at the junction point, so that the successive delivery strokes can be supplied to the pressure line 13 in a controlled manner by the two pumps.
  • the movement of the pistons 1, 2, 5 and 6 of the pumps A and B is effected hydraulically or by another drive means and is regulated in their final phases by electrical or electronic switching devices, for example limit switches.
  • electrical or electronic switching devices for example limit switches.
  • FIG. 2 the operation with the device according to the invention is shown, specifically with the device as shown schematically in FIG. 1, consisting of pumps A and B, of pistons 1, 2 and 5, 6. It can be seen, from the bottom row "addition of the delivery quantities", that an essentially continuous flow of material or flow quantity is achieved.
  • the delivery strokes of the individual pistons of the two pumps are controlled by a corresponding electrical or electronic control so that the delivery strokes connect to one another in a stepless manner.
  • the electrohydraulic drive can be carried out individually for each twin pump with a possibility of reducing the pressure medium quantity, e.g. Oil, in each case up and down according to the desired marching speed of the individual piston, or as a central drive for both twin pumps, the amount of pressure medium being supplied to the working cylinders in operation. In the latter case, a smooth transition is ensured in the switching process by positive overlap (FIG. 2).
  • the pressure medium quantity e.g. Oil
  • FIG. 3 shows such an enlarged device which comprises a number of pumps which are a multiple of two, namely twice two and which are operated in the same way as explained above.
  • the units C and D feed into a common pressure line 15

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Treatment Of Sludge (AREA)

Claims (4)

1. Dispositif pour le refoulement de suspensions de liquides épais, muni d'au moins deux pompes à piston à double cylindre, dont les cylindres de refoulement peuvent être reliés à l'intervention d'un coulisseau alternativement, à l'admission d'une suspension de liquide épais et à la conduite d'alimentation, et dans lequel les deux pompes à piston à double cylindre refoulent dans une conduite d'alimentation commune, la deuxième pompe à piston à double cylindre fonctionnant en étant décalée dans le temps d'un quart de cycle par rapport à la première, caractérisé en ce que le déversement des conduites d'alimentation (10 et 12) des deux pompes (A et B) à piston à double cylindre a lieu dans la conduite d'alimentation commune (15), à l'intervention d'un coulisseau (14) à clapet pivotant.
2. Dispositif selon la revendication 1, caractérisé en ce que d'autres pompes à piston à double cylindre mises conjointement en circuit selon un multiple de deux, refoulent dans une conduite d'alimentation commune (13).
3. Procédé pour le fonctionnement d'un dispositif selon les revendications 1 et 2, caractérisé en ce que la deuxième pompe à piston (B) à double cylindre est actionnée selon en décalage d'un quart de cycle par rapport à la première pompe à piston (A), de telle sorte qu'au cours d'un cycle complet de travail, a lieu un ensemble de quatre cycles de refoulement et en ce qu'on met en circuit le mode de fonctionnement des pompes à piston jumelées, au moyen d'une commande électrique/ électronique, de telle sorte que chaque cycle de travail d'un cylindre n'est pas mis en mouvementà pleine puissance, mais démarre en une phase étalée dans le temps, et qu'également la fin de la course de refoulement se termine doucement.
4. Procédé selon la revendication 3, caractérisé en ce qu'on procède à la commande des pompes de telle sorte que deux courses de refoulement successives se chevauchent au cours des phases temporisées de début et de fin.
EP86103935A 1985-04-11 1986-03-22 Dispositif pour transporter une suspension de liquide épais et procédé opérationnel Expired - Lifetime EP0197402B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86103935T ATE53635T1 (de) 1985-04-11 1986-03-22 Vorrichtung zur foerderung von dickstoffsuspensionen und verfahren zu ihrem betrieb.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3512946 1985-04-11
DE19853512946 DE3512946A1 (de) 1985-04-11 1985-04-11 Vorrichtung zur foerderung von dickstoffsuspensionen und verfahren zu ihrem betrieb

Publications (3)

Publication Number Publication Date
EP0197402A2 EP0197402A2 (fr) 1986-10-15
EP0197402A3 EP0197402A3 (en) 1987-08-05
EP0197402B1 true EP0197402B1 (fr) 1990-06-13

Family

ID=6267704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103935A Expired - Lifetime EP0197402B1 (fr) 1985-04-11 1986-03-22 Dispositif pour transporter une suspension de liquide épais et procédé opérationnel

Country Status (7)

Country Link
EP (1) EP0197402B1 (fr)
JP (1) JPS61252876A (fr)
AT (1) ATE53635T1 (fr)
AU (1) AU587816B2 (fr)
CA (1) CA1281592C (fr)
DE (2) DE3512946A1 (fr)
ZA (1) ZA862657B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3738359A1 (de) * 1987-11-12 1989-05-24 Putzmeister Maschf Dickstoff-pumpe
FR2628145A1 (fr) * 1988-03-04 1989-09-08 Transport Materiel Ste Auxil Procede et installation de transformation et de pompage de deblais a sole d'epandage, et installation de transport de deblais avec une telle installation
JPH07103848B2 (ja) * 1991-02-12 1995-11-08 株式会社新潟鉄工所 多連コンクリートポンプ装置
JPH07103847B2 (ja) * 1991-02-12 1995-11-08 株式会社新潟鉄工所 多連コンクリートポンプ装置
DE19825887A1 (de) * 1998-06-10 1999-12-23 Stn Atlas Elektronik Gmbh Unterwasser-Schleppantenne
DE102005024174A1 (de) * 2005-05-23 2006-12-07 Schwing, Friedrich, Dipl.-Ing. Verfahren zum Steuern einer Pumpvorrichtung zur Förderung breiiger Massen sowie Steuerung einer Pumpvorrichtung zur Förderung breiiger Massen
CN106968908B (zh) * 2017-03-29 2020-06-30 长乐智睿恒创节能科技有限责任公司 一种平稳输送混凝土泵以及控制方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279382A (en) * 1964-04-14 1966-10-18 Royal Industries Pump
JPS5011083A (fr) * 1973-05-29 1975-02-04
JPS573835B2 (fr) * 1974-03-25 1982-01-22
GB1585073A (en) * 1976-05-15 1981-02-25 Ackermann R A Pumping devices
DE2909964A1 (de) * 1979-03-14 1980-09-25 Schwing Gmbh F Dickstoffpumpe, insbesondere fuer beton
US4580954A (en) * 1983-05-23 1986-04-08 Boyle Bede Alfred Oscillating-deflector pump
AU561932B2 (en) * 1983-05-23 1987-05-21 Bede Alfred Boyle Opposed piston hydraulic slurry pump with flow control valve

Also Published As

Publication number Publication date
JPS61252876A (ja) 1986-11-10
DE3512946A1 (de) 1986-10-16
AU5604386A (en) 1986-11-20
EP0197402A3 (en) 1987-08-05
AU587816B2 (en) 1989-08-31
ATE53635T1 (de) 1990-06-15
DE3671939D1 (de) 1990-07-19
ZA862657B (en) 1986-12-30
EP0197402A2 (fr) 1986-10-15
CA1281592C (fr) 1991-03-19

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