EP2106502B1 - Pompe mélangeuse - Google Patents

Pompe mélangeuse Download PDF

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Publication number
EP2106502B1
EP2106502B1 EP07866154A EP07866154A EP2106502B1 EP 2106502 B1 EP2106502 B1 EP 2106502B1 EP 07866154 A EP07866154 A EP 07866154A EP 07866154 A EP07866154 A EP 07866154A EP 2106502 B1 EP2106502 B1 EP 2106502B1
Authority
EP
European Patent Office
Prior art keywords
pump
reservoir
housing
constituent
enclosure
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.)
Not-in-force
Application number
EP07866154A
Other languages
German (de)
English (en)
Other versions
EP2106502A1 (fr
Inventor
Rudolph Teodor BÜHRMANN
Rudolph BÜHRMANN
Frank Neimann
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.)
AEL Mining Services Ltd
Original Assignee
AEL Mining Services Ltd
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 AEL Mining Services Ltd filed Critical AEL Mining Services Ltd
Priority to PL07866154T priority Critical patent/PL2106502T3/pl
Publication of EP2106502A1 publication Critical patent/EP2106502A1/fr
Application granted granted Critical
Publication of EP2106502B1 publication Critical patent/EP2106502B1/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
    • F04B9/103—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 having only one pumping chamber

Definitions

  • This invention relates to the construction of a pumping device which functions to deliver two constituents which are drawn from respective reservoirs to a common discharge point.
  • a selection of mixer pumps having flexible reservoirs can be seen in documents US 2007012378 A1 , WO 2005070816 A1 , US2002100771 A1 and GB 2222960A , Document US 2007012378 is considered to represent the closest prior art.
  • a pumping arrangement referred to herein as a mixer pump is required in various applications including, for example, for the mixing of a non-explosive emulsion and an activator to produce an explosive gel.
  • the mixer pump is employed in an underground location and, as a consequence, the pump is subjected to arduous conditions of use.
  • the mixer pump should be compact and below a predetermined weight and the constituents which are to be mixed should preferably be housed in tanks or reservoirs together with the required pumping equipment, in a single housing. This should be done in a manner which makes the mixer pump easy to maintain and repair, when necessary.
  • the invention provides a mixer pump according to claim 1 which includes a first reservoir for a first constituent, a second reservoir for a second constituent, a housing which includes a first formation which is at least partly complemental in shape to the first reservoir and with which the first reservoir is engageable, and a second formation which is at least partly complemental in shape to the second reservoir and with which the second reservoir is engageable, a first pump inside the housing for pumping the first constituent to a discharge point and a second pump inside the housing for pumping the second constituent to the discharge point.
  • a first filter may be located between the first reservoir and the first pump positioned so that the first pump draws the first constituent from the first reservoir through the first filter.
  • the first filter may include an enclosure with an outlet from the enclosure to an inlet to the first pump, a filter element which is located inside the enclosure, and an inlet at a lower end of the enclosure through which the first constituent is drawn from the first reservoir.
  • the first reservoir is preferably positioned so that it at least partly overlies the enclosure.
  • the housing may include an opening at a lower side through which the enclosure of the first filter is insertable.
  • a cap may be engageable with the opening, in order to retain the enclosure in its position and to seal the opening.
  • the filter element is preferably removable from the enclosure upon disengagement of the cap from the opening.
  • the first reservoir may include a first filler aperture which extends through an opening in an upper side of the housing, and a first cap which is engaged with the filler aperture.
  • the second reservoir may include a second filler aperture which extends through an opening in an upper side of the housing and a second cap may be engaged therewith.
  • the first pump may be positioned at least partly between the first filter and the second reservoir.
  • the pump may be actuable by means of a piston which is reciprocally movable inside a cylinder positioned at least partly between the first and second reservoirs.
  • Sighting windows or apertures may be positioned at suitable locations of the housing to enable the contents of the first and second reservoirs, which are made from or which include a transparent or translucent material, to be assessed.
  • the various components may be retained inside the housing by engagement of a closure with a part of the housing.
  • the closure constitutes a section of the housing.
  • the closure may comprise a flap which is movable relatively to the remainder of the housing along a line of weakness or a hinge joint.
  • the first pump may discharge into a pipe and the second pump may discharge into a tube, located at least partly inside the pipe, with an end of the tube being located inside the pipe so that the second constituent is discharged from the tube directly into the first constituent in the pipe and the two constituents are thereby mixed.
  • the accompanying drawings illustrate a mixer pump 10 according to the invention.
  • the invention is primarily concerned with the manner in which components and parts of the mixer pump are assembled in a compact yet easy to assemble and disassemble configuration.
  • the manner in which some of the components of the mixer pump work is not important to an understanding of the present invention and for this reason the following description does not elaborate on these aspects.
  • the mixer pump includes a housing 12, a first reservoir 14, a second reservoir 16, a first pump 18, a second pump 20, a first filter assembly 22, a cylinder 24 and a piston 26 which is mounted for reciprocating movement in a bore of the cylinder.
  • the housing 12 has a complex shape and is specifically designed to engage intimately with some of the remaining components of the mixer pump and to provide a wide base for stable support on uneven surfaces.
  • the housing At a first end 30, on an upper surface, the housing has a short upwardly projecting spout 32 which is more or less centrally positioned in a section 34 of the housing which is generally of a rectangular configuration.
  • the first reservoir 14, on its upper surface, is shaped to fit in a complemental manner, in a close-nestling configuration, into the section 34.
  • the reservoir has a first filler aperture 36 which projects through the spout.
  • a first cap 38 is threadedly engageable with the filler aperture to close the aperture.
  • the reservoir 14 has a substantially flat ledge 40 which firmly abuts a corresponding ledge 42 in the casing 12, and an opening 44 which places a main section of the reservoir in communication with a downwardly extending portion 46 of the reservoir. This portion terminates in a screw-threaded neck 48 and a cap 50 is threadedly engageable with the neck.
  • the filter assembly 22 is located inside the portion 46.
  • the filter assembly includes an enclosure 54 with a lower opening or inlet 56 and an outlet 58 which is in communication with an inlet to the pump 18.
  • a filter element 60 is located inside the enclosure and is firmly held in position by means of an elongate bolt 62.
  • the arrangement is such that, as is indicated by means of a curved arrow 64, a first fluid constituent held in the first reservoir 14, under the action of gravity, can flow through the portion 46 and then upwardly through the inlet 56 into the enclosure 54. This brings the first fluid constituent into the interior of the filter element, which is of circular cylindrical shape, and consequently the first fluid constituent can only pass to the pump 18 if it flows through the filter element.
  • the cap 50 is situated in a recess 66 in an underside of the housing and therefore can be removed with ease, when necessary, in order to remove filtered material from filter assembly.
  • a lower surface 68 of the housing extends downwardly more than the lower surface of the cap and thus, in normal usage, protects the cap against abrasion and similar damage.
  • the pump 18 is actuated by the piston 26 which is reciprocated within the cylinder 24 by means of pressurised air.
  • the pressurised air is drawn from an appropriate source, not shown, and is introduced into the cylinder alternately on opposing sides of the piston by means of a control assembly 70.
  • the manner in which the control assembly works is not important to an understanding of the invention and any suitable device can be used in this regard. It is pointed out though that the cylinder 24 has opposing ends 24A and 24B which are engageable with a press fit in corresponding seals 72A and 72B respectively.
  • the cylinder is bolted in position and is in tight engagement with the seals, and is closely sandwiched between the control assembly 70 and structure 76 which accommodates the seal 72B.
  • the structure 76 is mounted to a casing 77 of the pump.
  • a sealed protrusion 78 on the casing 77 engages with a bore 79 in the tank 14 so as to support the pump and to provide a sealed connection between the cylinder 24 and the tank 14, via the outlet 58 and the portion 46 along the path designated by the arrow 64.
  • the pump is designed to discharge into a pipe 80 which is formed inside the structure. This pipe leads to a discharge point, not shown, which is at any convenient position on the housing and which is externally accessible in order to couple a flexible hose thereto.
  • the housing has a construction which is similar to that at the right end although on a smaller scale.
  • the housing includes a spout 86 which extends upwardly and the second reservoir 16 has a second filler aperture 88 which passes through the spout.
  • a second cap 90 is threadedly engageable with the aperture 86.
  • a lower end of the reservoir 16 has a discharge aperture through which a second fluid constituent, held in the reservoir, can pass to a suitable filter, not shown, to the second pump 20.
  • the second pump 20 is also operated by compressed air, using any appropriate technique. Operation of the second pump 20 is synchronised to the operation of the first pump, by means of the control assembly 70, to ensure that the second pump delivers the second fluid constituent, drawn from the second reservoir, at a rate which is accurately controlled relatively to the rate at which the first pump delivers the first fluid constituent.
  • the second pump discharges into a tube 92 which is positioned inside the pipe 80.
  • the tube has an open end at an appropriate location inside the pipe so that the second fluid constituent is discharged from the tube directly into the first fluid constituent inside the pipe.
  • the tube is of sufficient length to discharge the second fluid into the first fluid at a position in the pipe such that the components are only mixed outside the pump housing 12.
  • the flexible hose which is connected to an outlet from the pipe 80 is not shown and is used in a manner known in the art to direct the resulting mixture of the two fluid constituents, typically an explosive emulsion, to a point of use.
  • the second reservoir 16 closely abuts a side wall at the second end 84 and is held in position by the interengagement of a portion of its upper surface with a portion of the housing adjacent the spout, which has a close-fitting corresponding shape.
  • the control assembly 70 is directly and closely insertable into a suitable recess 96 in a side of the reservoir.
  • the cylinder 24 is positioned between the control assembly 70 and the structure 76.
  • the pump 20 is closely positioned at a lower end of the housing between opposing surfaces of the reservoir and of the control assembly and a lower wall of the housing. The projecting end of the pump 20 is engaged with the structure 76. This structure also correctly locates the pump casing 77 at one end while, at an opposing end, the pump casing is engaged with the closure 60 of the filter assembly.
  • the housing 12 which is integrally formed, has a closure flap 100 which is joined to the remainder of the housing along a line of weakness 102 which forms a hinge joint.
  • a number of holes 104 are formed at spaced locations in the flap. Fasteners, not shown, can pass through these holes and are threadedly engaged with appropriate substantial bushes, not shown, formed on an inner side of an opposing wall 106 of the housing.
  • the flap 100 When the fasteners are disengaged from the wall 106 the flap 100 can be pivoted upwardly about the hinge joint 102. If the caps 18 and 90 are unscrewed from the respective filler apertures then it is possible to withdraw the components of the mixer pump successively from the housing through an aperture 108 which is normally partly closed by the flap.
  • the various components of the mixer pump are made, to the extent possible, from suitable tough plastics materials which are lightweight and corrosion and abrasion resistant.
  • the two reservoirs are made from a transparent or translucent material and sight windows 110 and 112 are formed in the walls of the housing at the first and second ends respectively to enable the fluid constituent inside the respective reservoirs to be viewed.
  • Handles or skids can be attached to the housing or can be formed integrally therewith as may be required.
  • the housing is of compact design and accommodates all of the components of the mixer pump. This is done in a manner which provides a substantial degree of protection for the components but which allows the components to be disassembled, when necessary, for maintenance or repair purposes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Cette invention concerne une pompe mélangeuse pourvue de deux réservoirs pour deux constituants, deux pompes pour pomper les constituants, et un logement qui contient les réservoirs et les pompes et qui présente des formations au moins en partie complémentaires avec les réservoirs et reçoivent des éléments de ces réservoirs.

Claims (7)

  1. Une pompe mélangeuse (10) comprenant un premier réservoir (14) pour un premier composant, un deuxième réservoir (16) pour un deuxième composant, un boitier (12) comprenant un premier espace en tout ou partie complémentaire de la forme dudit premier réservoir (14) et avec laquelle ledit premier réservoir (14) est engageable, et un deuxième espace en tout ou partie complémentaire de la forme dudit second réservoir (16) et avec laquelle ledit second réservoir est engageable, une première pompe (18) à l'intérieur dudit boitier (12) pour pomper ledit premier composant vers une zone de rejet et une deuxième pompe (20) à l'intérieur dudit boitier (12) pour pomper ledit deuxième composant vers ladite zone de rejet, caractérisée en ce que ladite pompe mélangeuse (10) comprend en outre un tuyau (80) et un tube (92) et en ce que ladite première pompe (18) est adaptée pour se vider dans le tuyau (80) et en ce que la seconde pompe (20) est adaptée pour se vider dans le tube (92), placé en tout ou partie à l'intérieur dudit tuyau (80), et en ce que l'extrémité dudit tube (92) est placée à l'intérieur dudit tuyau (80) de telle sorte que le deuxième composant est envoyé dudit tube (92) directement dans le deuxième composant au niveau du tuyau (80) conduisant ainsi au mélange desdits composants.
  2. Une pompe mélangeuse (10) selon le revendication 1 caractérisée en ce que elle comprend un premier filtre (22), placé entre ledit premier réservoir (14) et la première pompe (18), de telle sorte que ladite première pompe (18) dirige le premier composant depuis le premier réservoir (14) à travers ledit premier filtre (22) et en ce que ledit premier filtre (22) comprend une enceinte (54) avec une sortie de ladite enceinte (54) vers une entrée (56) de ladite première pompe (18), un filtre (60) placé à l'intérieur de ladite enceinte (54), et l'entrée (56) dans la partie inférieure de l'enceinte (54) à travers laquelle ledit premier composant est dirigé depuis le premier réservoir (54).
  3. Une pompe mélangeuse (10) selon la revendication 2 caractérisée en ce que ledit premier réservoir (14) est placé de telle sorte qu'il recouvre en tout ou partie ladite enceinte (54), et en ce que le boitier (12) comprend une ouverture (48) sur une paroi inférieure à travers laquelle l'enceinte (54) du premier filtre (22) est insérable et un bouchon (50) qui peut coopérer avec l'ouverture (48) pour maintenir l'enceinte (54) en position et fermer l'ouverture (48).
  4. Une pompe mélangeuse (10) selon la revendication 3 caractérisée en ce que le filtre (60) est amovible de l'enceinte (54) après retrait du bouchon (50) de l'ouverture (48).
  5. Une pompe mélangeuse selon l'une des revendications 2 à 4 caractérisée en ce que le premier réservoir (14) comprend une première ouverture de remplissage (36) qui s'étend au travers d'une ouverture placée sur la face supérieure de la boite (12), et un premier bouchon (38) coopérant avec l'ouverture de remplissage (36) et en ce que le second réservoir (16) comprend une deuxième ouverture de remplissage (88) qui s'étend au travers d'une ouverture placée sur la face supérieure de la boite (12) et un second bouchon (90) coopérant avec ladite deuxième ouverture de remplissage (88).
  6. Une pompe mélangeuse (10) selon l'une des revendications 2 à 5 caractérisée en ce que la première pompe (18) est placée en tout ou partie entre le premier filtre (22) et le second réservoir (16) et est actionnable via un piston (26) qui peut faire un mouvement de va et vient à l'intérieur d'un cylindre (24) placé en tout ou partie entre le premier et le second réservoir (14, 16).
  7. une pompe mélangeuse (10) selon l'une des revendications 1 à 6 caractérisée en ce que le boitier (12) comprend une fermeture qui comprend un volet qui est monté de façon pivotante, par rapport au boitier (12), selon une ligne de faiblesse ou une charnière.
EP07866154A 2007-01-30 2007-12-12 Pompe mélangeuse Not-in-force EP2106502B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07866154T PL2106502T3 (pl) 2007-01-30 2007-12-12 Mieszająca pompa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200701068 2007-01-30
PCT/ZA2007/000087 WO2008095206A1 (fr) 2007-01-30 2007-12-12 Pompe mélangeuse

Publications (2)

Publication Number Publication Date
EP2106502A1 EP2106502A1 (fr) 2009-10-07
EP2106502B1 true EP2106502B1 (fr) 2012-04-18

Family

ID=39433768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07866154A Not-in-force EP2106502B1 (fr) 2007-01-30 2007-12-12 Pompe mélangeuse

Country Status (12)

Country Link
EP (1) EP2106502B1 (fr)
AP (1) AP2665A (fr)
AT (1) ATE554290T1 (fr)
BR (1) BRPI0721208A2 (fr)
CL (1) CL2008000281A1 (fr)
DK (1) DK2106502T3 (fr)
MX (1) MX2009007321A (fr)
PE (1) PE20081745A1 (fr)
PL (1) PL2106502T3 (fr)
PT (1) PT2106502E (fr)
WO (1) WO2008095206A1 (fr)
ZA (1) ZA200904405B (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099597A (en) * 1976-08-23 1978-07-11 Houdaille Industries, Inc. Lubrication pump
CH675697A5 (fr) * 1988-09-26 1990-10-31 Sandoz Ag
WO2005070816A1 (fr) * 2004-01-21 2005-08-04 Imi Vision Limited Distributeur de boissons
EP1863723B1 (fr) * 2005-03-16 2010-01-06 Imi Vision Limited Distributeur de liquide ameliore
US7690405B2 (en) * 2005-07-18 2010-04-06 Fluid Management, Inc. Multiple fluid dispenser

Also Published As

Publication number Publication date
MX2009007321A (es) 2009-08-20
ZA200904405B (en) 2010-06-30
PE20081745A1 (es) 2008-12-06
AP2665A (en) 2013-05-16
AP2009004921A0 (en) 2009-08-31
PL2106502T3 (pl) 2012-10-31
BRPI0721208A2 (pt) 2014-05-13
PT2106502E (pt) 2012-07-16
ATE554290T1 (de) 2012-05-15
EP2106502A1 (fr) 2009-10-07
DK2106502T3 (da) 2012-07-23
WO2008095206A1 (fr) 2008-08-07
CL2008000281A1 (es) 2008-06-06

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