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WO2015022088A1 - Pompe à matière épaisse à deux cylindres comportant une vanne d'aiguillage - Google Patents

Pompe à matière épaisse à deux cylindres comportant une vanne d'aiguillage Download PDF

Info

Publication number
WO2015022088A1
WO2015022088A1 PCT/EP2014/058291 EP2014058291W WO2015022088A1 WO 2015022088 A1 WO2015022088 A1 WO 2015022088A1 EP 2014058291 W EP2014058291 W EP 2014058291W WO 2015022088 A1 WO2015022088 A1 WO 2015022088A1
Authority
WO
WIPO (PCT)
Prior art keywords
delivery
container
slot
transfer tube
pocket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2014/058291
Other languages
German (de)
English (en)
Inventor
Ralf WEIMER
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.)
Putzmeister Engineering GmbH
Original Assignee
Putzmeister Engineering 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 Putzmeister Engineering GmbH filed Critical Putzmeister Engineering GmbH
Priority to CN201480045266.6A priority Critical patent/CN105683569A/zh
Priority to KR1020167002999A priority patent/KR20160041910A/ko
Priority to JP2016533842A priority patent/JP2016528433A/ja
Priority to EP14719011.0A priority patent/EP3033523B1/fr
Publication of WO2015022088A1 publication Critical patent/WO2015022088A1/fr
Priority to US15/042,202 priority patent/US20160160851A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • 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
    • F04B15/023—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 supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
    • 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
    • F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/20—Other positive-displacement pumps
    • F04B19/22—Other positive-displacement pumps of reciprocating-piston 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
    • 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
    • F04B7/0023—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 a rotating movement
    • 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 sludge pump with a material feed container and two discharge ports connected to the front side of each delivery opening in the container wall, which are connected by a arranged in the interior of the material feed hopper alternately with the container interior and a delivery line and the delivery piston alternately a Carry out filling stroke and a delivery stroke.
  • the pipe switch has an inlet opening pointing in the direction of the outlet openings and designed as a circular arc-shaped elongated hole, the width of which corresponds to the diameter and its length to the outer spacing of the mouth openings and which each has a closure projection protruding beyond the outer edge of the inlet opening in the pivoting direction Longitudinal extent corresponds to the distance between the mouth openings (DE-195 03 986 A1).
  • the well-known slurry pump is characterized in particular by the fact that formed as a curved slot inlet opening and the two closure approaches of the pipe switch ensure that during the Schwenkating. Switching the pipe switch at least temporarily a short circuit of the two delivery cylinder is made. With these measures it is achieved that during the switching operation of the pipe switch, the two delivery cylinders temporarily separated from the interior of the material feed container and can be shorted together under common connection with the delivery line, so that the one delivery piston still stop its delivery stroke and at the same time the other delivery piston with its delivery already can start. The delivery piston terminating the delivery stroke will only perform its subsequent filling stroke when the short circuit between the two outlet openings is canceled again and the associated delivery cylinder is connected to the container interior.
  • the present invention seeks to improve the well-known slurry pump of the type specified in that both in the stationary and in the moving state of the transfer tube a sufficient seal in the area of the diverter tank wall partition parts is guaranteed.
  • the solution according to the invention essentially consists in that the pipe switch has a metallic ring element having the arcuate slot and a cushion element arranged between the ring element and a pivot pipe connected on the output side to the conveyor line, the cushion having a perforation comprising the slot, the ring element being relative to the pivot pipe limited axially movable and can be pressed against the inner surface of the container wall via the cushion member under the action of the delivery pressure in the transfer tube.
  • the cushioning element has a non-circular areal cross-sectional shape.
  • the preferably rubber-elastic material behaves almost incompressible, much like a liquid that transfers the hydraulic pressure evenly in all directions. This means that the pressure of the conveyed material from the inside of the diverter valve ideally propagates uniformly over the upholstery element, namely into the closure extensions.
  • the metallic ring member is pressed against the inner surface of the container wall, although only the inlet contour of the cushion member is in contact with the pressurized conveying medium.
  • a further improvement in this regard can be achieved by providing within the cushioning element a kind of fluid or gel pocket over which the pressure can be transferred even better.
  • the container wall carries on its inner surface facing the ring member a provided with the mouth openings replaceable wear plate. This can be relatively easily replaced in case of wear. In addition, this can be used against the material container wear-resistant and therefore more expensive material.
  • a further advantageous embodiment of the invention provides that the ring element has a schwenkrohr facility arranged, adapted over its outer contour to the cushion element, step-shaped pocket for receiving the cushion element.
  • a further improvement in this regard is achieved when the ring member is also limited to the slot through a stepped pocket wall whose height is smaller than the outer edge of the bag.
  • a further improvement of the positioning of the ring element on the pivot tube is achieved in that at the cylinder-side end of the pivot tube an arcuately limited, penetrated by a pivot tube channel elevation is arranged, which has a corresponding outer contour of the pocket in the ring element.
  • FIG. 1 is a perspective view of a two-cylinder Dickstoffpum- PE
  • Fig. 2 is a schematic representation of the essential parts of the thick matter pump in a perspective exploded view
  • Fig. 3a and b seen two perspective exploded views of the pipe switch with wear plate from different sides;
  • Fig. 4b is a representation corresponding to Figure 4a with partially broken pipe switch.
  • Fig. 5a to c an opposite embodiment of the ring member with
  • the sludge pump shown in Fig. 1 has a material supply container 10 for receiving thick matter, such as liquid concrete.
  • the liquid concrete is conveyed via a pipe bend 12 in an only indicated conveying line 14. This is done by means of two delivery cylinders 16, 17, which are connected to the front term mouth openings 18,19 are connected to a respective passage opening 18 ', 19' in the container wall 20 and the delivery piston 22,23 alternately perform a filling stroke and a delivery stroke.
  • the diverter 24 is pivotable via a hydraulic drive mechanism in each case in its desired position with respect to the mouth openings 18,19.
  • the delivery pistons 22, 23 are moved by means of hydraulic cylinder-piston units 26, 27, of which only the cylinders are schematically indicated in FIG. 1.
  • the diverter 24 has an opening in the direction of the orifices 18,19, designed as arcuate curved slot 28 inlet opening whose width corresponds to the diameter and the length of the outer distance of the mouth openings 18,19 and each one in Pivoting direction over the outer edge of the inlet opening 28 protruding closure approach 30,31, the longitudinal extent corresponds to the distance between the mouth openings 18,19 approximately.
  • a special feature of the invention is that the pipe switch has a bow-shaped elongated hole 28 exhibiting metallic ring member 32 and a between the ring member 32 and an output side connected to the feed line pivot pipe 34 arranged cushion member 36.
  • the padding element 36 has a long hole 28 in the ring member 32 comprehensive slot-shaped opening 38.
  • the ring member 32 is axially movable relative to the pivot tube 34 and is under the action of the delivery pressure generated in the delivery stroke in the transfer tube 34 via the ring member 32 against the inner surface of the container wall 20 pressed.
  • the container wall 20 carries on its the inner surface facing the ring member 32 a with the passage openings 18 ', 19' and provided with a bearing bore 40 for the bearing pin 42 replaceable metallic wear plate 20 '.
  • the ring element 32 has a step-shaped pocket 44, arranged on the pivoting tube side and adapted to the cushion element 36 via its outer contour, for receiving the cushioning element 36.
  • the ring member 32 is also limited to the slot 28 through a stepped inner pocket wall 46 whose height is smaller than the outer pocket edge 48.
  • At the cylinder-side end of the pivot tube 34 is an arcuately limited elevation 50 which is penetrated by the pivot tube channel 52 (FIG. 3 a) and which has one outer pocket corresponding to the pocket 44 in the ring element 32 (FIG. 3 b).
  • the cushion element 36 consists of a resilient, elastic or rubber-elastic material. A further improvement in the contact pressure effect can be achieved in that the cushioning element 36 contains a filling designed as an incompressible liquid.
  • the inlet opening of the pipe switch or of the ring element is designed with its curved slot shape so that the two delivery cylinders 16,17 are short-circuited via their orifices 18,19 within the slot 28. If, in this position, both delivery cylinders 16, 17 carry out a delivery stroke with their delivery pistons 22, 23, a smooth, bumpless switching process can be ensured. In preparation for the switching operation, a pre-pressure can already be built up in the previously filled delivery cylinder while the closure attachment 30, 31 is being moved past the diverter 24. This gives a further improvement in terms of the continuous flow through the delivery line during the switching process. On the other hand, this means that the piston speeds and thus also the stroke duration during the filling stroke and the delivery stroke are different, since due to the described functional Special features for the filling stroke less time available than for the delivery stroke.
  • the invention relates to a slurry pump with a material feed container 10 and two frontal openings 18,19 to one through opening 18 ', 19' in the container wall 20 connected to the delivery cylinders 16,17.
  • the delivery cylinders 16, 17 can be connected in alternation with the container interior 21 and a delivery line 14 by a pipe switch 24 arranged in the interior of the material delivery container 10, while their delivery pistons 22, 23 alternately perform a filling stroke and a delivery stroke.
  • the diverter 24 has an opening in the direction of openings 18,19 facing, as a circular arc curved slot 28 formed inlet opening whose width corresponds to the diameter and its length to the outer distance of the mouth openings 18,19 and each one in the pivoting direction on the outer edge of the slot projecting closure approach 30,31, whose longitudinal extent corresponds to the distance between the mouth openings.
  • the pipe switch 24 a the arcuate slot 28 exhibiting metallic ring member 32 and a connected between the ring member 32 and an output side to the feed line 14 Swivel tube 34 arranged, a the slot 28 comprehensive breakthrough 38 exhibiting cushion member 36, wherein the ring member 32 relative to the pivot tube 34 axially movable and under the action of the delivery pressure in the transfer tube 24 via the cushion member 36 against the inner surface of the container wall can be pressed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

L'invention concerne une pompe à matière épaisse comportant un récipient d'alimentation en matière (10) et deux cylindres de refoulement (16, 17) raccordés respectivement par des orifices de sortie (18, 19) côté frontal à un orifice de passage (18', 19') ménagé dans la paroi de récipient (20). Les cylindres de refoulement (16, 17) peuvent être reliés alternativement avec l'intérieur du récipient (21) et un conduit de refoulement (14) par une vanne d'aiguillage (24) disposée à l'intérieur du récipient d'alimentation en matière (10) tandis que leurs pistons de refoulement (22, 23) exécutent alternativement une course de remplissage et une course de refoulement. La vanne d'aiguillage (24) comporte une ouverture d'entrée qui est dirigée vers les orifices de sortie (18, 19), qui est configurée sous la forme d'un trou oblong (28) incurvé en arc, dont la largeur correspond au diamètre des orifices de sortie (18, 19) et dont la longueur correspond à la distance extérieure entre ceux-ci et qui comporte un appendice de fermeture (30, 31) qui fait saillie, dans la direction de pivotement, de chaque bord extérieur du trou oblong et dont la longueur correspond à la distance entre les orifices de sortie. Selon l'invention, pour assurer une étanchéité fiable du point de séparation entre la vanne d'aiguillage (24) et la paroi de récipient (20), la vanne d'aiguillage (24) comporte un élément annulaire métallique (32), comprenant le trou oblong (28) en forme d'arc, ainsi qu'un élément tampon (36) qui est disposé entre l'élément annulaire (32) et un tuyau pivotant (34), relié au conduit de refoulement (14) du côté de la sortie et qui comporte un passage (38) entourant le trou oblong (28). L'élément annulaire (32) est mobile axialement par rapport au tuyau pivotant (34) et peut être pressé contre la surface intérieure de la paroi de récipient sous l'action de la pression de refoulement dans la vanne d'aiguillage (24) par le biais de l'élément tampon (36).
PCT/EP2014/058291 2013-08-13 2014-04-24 Pompe à matière épaisse à deux cylindres comportant une vanne d'aiguillage Ceased WO2015022088A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201480045266.6A CN105683569A (zh) 2013-08-13 2014-04-24 具有旁管的两缸泥浆泵
KR1020167002999A KR20160041910A (ko) 2013-08-13 2014-04-24 이송 튜브를 가진 2-실린더 농후 물질 펌프
JP2016533842A JP2016528433A (ja) 2013-08-13 2014-04-24 パイプ切り替え部を有する２シリンダ式粘性物質用ポンプ
EP14719011.0A EP3033523B1 (fr) 2013-08-13 2014-04-24 Pompe à matière épaisse à deux cylindres comportant une vanne d'aiguillage
US15/042,202 US20160160851A1 (en) 2013-08-13 2016-02-12 Two-cylinder thick matter pump having a transfer tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013215990.0A DE102013215990A1 (de) 2013-08-13 2013-08-13 Zweizylinder-Dickstoffpumpe mit Rohrweiche
DE102013215990.0 2013-08-13

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/042,202 Continuation US20160160851A1 (en) 2013-08-13 2016-02-12 Two-cylinder thick matter pump having a transfer tube

Publications (1)

Publication Number Publication Date
WO2015022088A1 true WO2015022088A1 (fr) 2015-02-19

Family

ID=50543602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/058291 Ceased WO2015022088A1 (fr) 2013-08-13 2014-04-24 Pompe à matière épaisse à deux cylindres comportant une vanne d'aiguillage

Country Status (7)

Country Link
US (1) US20160160851A1 (fr)
EP (1) EP3033523B1 (fr)
JP (1) JP2016528433A (fr)
KR (1) KR20160041910A (fr)
CN (1) CN105683569A (fr)
DE (1) DE102013215990A1 (fr)
WO (1) WO2015022088A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190038852A (ko) * 2016-08-11 2019-04-09 푸츠마이스터 엔지니어링 게엠베하 고점도 원료 밸브

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110195466B (zh) * 2019-04-24 2021-07-13 湖南睿弓机械科技有限公司 清淤机械及其液压系统
JP7620288B2 (ja) * 2021-03-12 2025-01-23 古河機械金属株式会社 水流揚鉱システム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2415276B1 (de) * 1974-03-29 1975-07-31 Friedrich Dipl.-Ing. 4680 Wanne-Eickel Schwing Pumpe zum Fördern von Dickstoffen, insbesondere Beton
DE19503986A1 (de) 1995-02-07 1996-08-08 Hudelmaier Ulrike Verfahren und Vorrichtung zum Fördern von Beton oder anderen Dickstoffen
WO2004059165A1 (fr) * 2002-12-24 2004-07-15 Lacksu Han Structure et procede de production de pieces de frottement pour une pompe a beton

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US3663129A (en) * 1970-09-18 1972-05-16 Leon A Antosh Concrete pump
US3989420A (en) * 1974-05-15 1976-11-02 J. I. Case Company Concrete pumping apparatus
US3963385A (en) * 1975-05-05 1976-06-15 Caban Angel M Valve assembly for concrete pumps
DE2829181A1 (de) * 1978-07-03 1980-01-17 Scheele Maschf W Rohrweiche fuer eine betonpumpe
DE3153268C2 (en) * 1981-01-31 1988-01-28 Friedrich Wilh. Schwing Gmbh, 4690 Herne, De Two-cylinder viscous-material pump, preferably concrete pump
JPS6063079U (ja) * 1983-10-07 1985-05-02 合資会社　八代石油 コンクリ−トポンプの吐出口と分配管の間隙をシ−ルするリング
JPS60175780A (ja) * 1984-02-23 1985-09-09 Kyokuto Kaihatsu Kogyo Co Ltd コンクリ−トポンプにおける吸送部の切換装置
DE3419832A1 (de) * 1984-05-26 1985-11-28 Karl Dipl.-Ing. 7000 Stuttgart Schlecht Rohrweiche einer dickstoff, insbesondere beton foerdernden doppelkolbenpumpe
DE3430193A1 (de) * 1984-08-16 1986-02-27 Linnhoff & Thesenfitz Maschinen- und Anlagenbau GmbH, 8754 Großostheim Schwenkrohrsystem fuer betonpumpen
US5037275A (en) * 1987-06-27 1991-08-06 Karl Schlecht Pipe junction switch for two-cylinder thick-material pump
DE3824466A1 (de) * 1988-07-19 1990-01-25 Putzmeister Maschf Mehrzylinder-dickstoffpumpe
US5302094A (en) * 1988-07-19 1994-04-12 Putzmeister-Werk Maschinenfabrik Gmbh Tube switch for a double-cylinder sludge pump
US5180294A (en) * 1992-03-04 1993-01-19 Confloat Consulting Ltd. Concrete pump having pressurized seal for swing tube
US6857861B2 (en) * 2002-05-15 2005-02-22 Kennametal Inc. Ring for concrete pump
DE10343802B4 (de) * 2003-09-22 2007-12-06 Schwing Gmbh Kolben-Dickstoffpumpe mit kontinuierlichem Förderstrom
US7513758B2 (en) * 2005-11-08 2009-04-07 Good Earth Tools, Inc. Sealing rings for abrasive slurry pumps
CN101718265B (zh) * 2009-12-16 2012-10-10 三一重工股份有限公司 泵送设备的密封组件、分配阀总成、泵送设备及控制方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2415276B1 (de) * 1974-03-29 1975-07-31 Friedrich Dipl.-Ing. 4680 Wanne-Eickel Schwing Pumpe zum Fördern von Dickstoffen, insbesondere Beton
DE19503986A1 (de) 1995-02-07 1996-08-08 Hudelmaier Ulrike Verfahren und Vorrichtung zum Fördern von Beton oder anderen Dickstoffen
WO2004059165A1 (fr) * 2002-12-24 2004-07-15 Lacksu Han Structure et procede de production de pieces de frottement pour une pompe a beton

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190038852A (ko) * 2016-08-11 2019-04-09 푸츠마이스터 엔지니어링 게엠베하 고점도 원료 밸브
KR102334498B1 (ko) 2016-08-11 2021-12-03 푸츠마이스터 엔지니어링 게엠베하 고점도 원료 밸브

Also Published As

Publication number Publication date
KR20160041910A (ko) 2016-04-18
JP2016528433A (ja) 2016-09-15
US20160160851A1 (en) 2016-06-09
CN105683569A (zh) 2016-06-15
EP3033523A1 (fr) 2016-06-22
DE102013215990A1 (de) 2015-02-19
EP3033523B1 (fr) 2017-08-23

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