EP3092064B1 - Mélangeur statique pour homogéneiser un mélange d'au moins deux liquides et dispositif de dosage équipé d'un tel mélangeur - Google Patents

Mélangeur statique pour homogéneiser un mélange d'au moins deux liquides et dispositif de dosage équipé d'un tel mélangeur Download PDF

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Publication number
EP3092064B1
EP3092064B1 EP15701249.3A EP15701249A EP3092064B1 EP 3092064 B1 EP3092064 B1 EP 3092064B1 EP 15701249 A EP15701249 A EP 15701249A EP 3092064 B1 EP3092064 B1 EP 3092064B1
Authority
EP
European Patent Office
Prior art keywords
duct
mixer
container
wall
input
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.)
Active
Application number
EP15701249.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3092064A1 (fr
Inventor
Sandrine Lambinet
Philippe Duquennoy
Manal BADII
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.)
Dosatron International SAS
Original Assignee
Dosatron International SAS
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Publication date
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Publication of EP3092064A1 publication Critical patent/EP3092064A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/421—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions by moving the components in a convoluted or labyrinthine path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/451—Mixing liquids with liquids; Emulsifying using flow mixing by injecting one liquid into another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/315—Injector mixers in conduits or tubes through which the main component flows wherein a difference of pressure at different points of the conduit causes introduction of the additional component into the main component
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/32—Injector mixers wherein the additional components are added in a by-pass of the main flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/831—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows
    • 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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/915—Reverse flow, i.e. flow changing substantially 180° in direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/919—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings
    • B01F2025/9191—Direction of flow or arrangement of feed and discharge openings characterised by the disposition of the feed and discharge openings characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component

Definitions

  • the invention relates to a static mixer for homogenizing a mixture of at least two liquids, in particular after injecting an auxiliary liquid into a main liquid.
  • the injection by means of hydraulic metering pumps of a mixture of water and an auxiliary liquid product, in two separate phases, is known, in particular according to FR 2 967 218 , describing a device according to the preamble of claim 11, in the name of the Applicant Company.
  • the auxiliary liquid in the case of use in agricultural environment, may consist of nutrients in solution, or by veterinary drugs. It is important that the mixture between the main liquid and the auxiliary liquid is as homogeneous as possible. The same requirement can be found in other applications, the metering pumps in question may be used in industry, or in hospitals, or other areas also requiring to obtain a homogeneous liquid mixture, according to the dose prescribed for the liquid auxiliary.
  • the object of the invention is therefore to provide a static mixer of simple and economical construction which makes it possible to obtain a good homogenization of the mixed liquids.
  • a static mixer for homogenizing a mixture of at least two liquids, in particular after injecting an auxiliary liquid into a main liquid is characterized by the features of claim 1.
  • the first wall may be formed by the top of the container, and the opposite wall formed by the bottom, the inlet duct being vertical when the mixer is in the working position, from above and extending to near the bottom, while the outlet duct begins near the top and extends to the bottom.
  • the inlet duct is horizontal, as is the outlet duct.
  • the inlet duct is disposed in the vicinity of the side wall of the container, in particular against the wall.
  • the outlet duct may be disposed near the inlet duct, in particular against the inlet duct, or be shifted therefrom.
  • the mixer according to the invention induces a swirling flow of the mixture to pass from the inlet duct to the outlet duct, resulting in a high homogenization effect.
  • the inlet duct may have, in the lower part, a partially open cross section, the open portion of this section being essentially closed by the wall of the container.
  • the container has an oval horizontal section, in particular elliptical, and the inlet duct is located near one end of the major axis of the section, while the outlet duct is located substantially against the inlet duct, the side of the center of the section.
  • the plane of the parallel axes of the inlet duct and of the outlet duct contains the major axis of the horizontal section of the mixer.
  • the bottom and the top of the container can be curved to promote the flow of fluid in the mixer, and ensure a good resistance to pressure.
  • the container is relatively flat and has a thickness, in a direction orthogonal to the plane of the axes of the inlet duct and the outlet duct, whose ratio to the width of the container is between 0.3 and 0.7.
  • the thickness of the container corresponds to the small axis of the section, while the width corresponds to the major axis.
  • the mixer may be associated with a single pump.
  • the mixer can be made with two identical half-pieces, turned and assembled head to tail.
  • the invention also relates to a dosing device for introducing an auxiliary liquid into a main liquid stream flowing in a pipe according to claim 11.
  • the metering device may comprise a flow divider installed in the main liquid line, the metering pump being connected in parallel with the flow divider, the first inlet of the pump being connected by a first channel to the inlet of the flow divider while the outlet of the pump is connected by a second pipe to a neck of the flow divider, the mixer being disposed on the second pipe between the outlet of the pump and the connection to the neck of the flow divider.
  • the metering device may include a variable neck throttling means of the flow divider.
  • the volume of the container is adapted to the metering pump with which this mixer is used.
  • the volume of the container is advantageously equal to or greater than three times the displacement of the metering pump.
  • a static mixer M can be seen to homogenize a mixture of at least two liquids.
  • the mixer M comprises a closed container 1, with a top 1a, a bottom 1b, and side walls.
  • the top 1a and the bottom 1b, with the associated side walls, are shell-shaped as visible on Fig. 3-8 , rotating their concavity towards each other and are assembled in an equatorial plane P, preferably by welding or by screwing.
  • the container 1 is advantageously made of plastic.
  • the top has two vertical legs 2 provided with a hole for a possible attachment of the container to a support.
  • the mixer M comprises an inlet duct 3, vertical when the mixer M is in the working position.
  • the duct 3 from above 1a and extends to the vicinity of the bottom of the container, as visible on Fig. 2 .
  • the average distance between the open bottom end of the duct 3 and the bottom wall 1b is preferably less than 20 mm.
  • the ducts pass through the top 1a to form a threaded connection pipe 3a.
  • the mixer M further comprises an outlet duct 4, substantially parallel to the inlet duct 3, starting below and in the vicinity of the top 1a, and extending to the bottom 1b.
  • the average distance between the open upper end of the duct 3 and the top wall 1a is preferably less than 20 mm.
  • the duct 4 is open at the bottom, and passes through the bottom 1b to form an outlet pipe 4a advantageously provided with annular grooves for receiving a quick connection device.
  • the annular grooves respectively allow the establishment of a seal and a staple for retaining a rotating nut for fixing on a threaded end.
  • the inlet and outlet ducts could be horizontal between a first side wall and an opposite wall.
  • the top 1a and the bottom 1b are curved so that the stream of liquid coming out of the duct 3 at the bottom reaches a curved surface 5 of the bottom 1b ( Fig. 6 which directs the flow to the opposite zone of the container.
  • the container 1 has an oval horizontal section, in particular elliptical as visible on Fig. 3 and 7 , having a minor axis 7 and a major axis 8.
  • the horizontal section may be circular.
  • the inlet duct 3 is located in the vicinity of the container wall, and at one end of the major axis 8 of the section as visible on Fig. 3-5 .
  • the lower part 3b ( Fig. 3 and 5 ) may have a U-shaped cross section open towards the wall of the container and adapted to bear against a zone, forming a belt, of the bottom 1b.
  • the lower portion of the inlet duct may be in the form of a cylindrical pipe.
  • the outlet duct 4 is located substantially against the inlet duct 3.
  • the geometric axes of ducts 3 and 4 are located in a vertical plane which contains the major axis 8 of the horizontal section of the container.
  • the output conduit may be shifted, i.e., spaced, from the input conduit.
  • the container 1 is relatively flat, that is to say that its thickness in a direction orthogonal to the plane of the geometric axes of the ducts 3 and 4 is relatively small compared to its width.
  • the thickness of the container 1 substantially corresponds to the dimension of the minor axis 7 of the section, while the width corresponds substantially to the size of the major axis 8.
  • the ratio of the thickness of the container to its width is advantageously between 0.3 and 0.7.
  • the volume of the container 1 is preferably at least three times the displacement of a reciprocating piston metering pump to which the mixer M is intended.
  • a volume of 1.5 liters for the mixer M is an example of a possible value.
  • the top 1a and the bottom 1b are molded separately and are assembled by arranging the upper half 1a on the lower half 1b so that the inlet duct 3 is between the outlet duct 4 and the wall near the bottom 1b.
  • the assembly along the equatorial plane P is provided by any appropriate connecting means, in particular by welding or gluing.
  • the mixer M is then installed in a position such that the geometric axes of the ducts 3 and 4 are vertical, the inlet pipe 3a being at the top while the outlet pipe 4a is at the bottom.
  • the inlet pipe 3a is connected to an inlet pipe in which a mixture of at least two liquids circulates, and must be made more homogeneous.
  • the liquid flow opens at the bottom of the conduit 3 at a reduced distance generally less than 20 mm from the bottom wall.
  • the liquid stream by encountering the concave surface 5 of the bottom wall describes a curved path towards the opposite end of the container 1 and rises, by making vortices, towards the upper end of the outlet duct 4 for s'. flow through this conduit.
  • the upper end of the duct 4 is located at a short distance from the upper wall of the top 1a, this distance being in particular less than 20 mm.
  • Fig. 2 illustrates a dosing device D for introducing an auxiliary liquid L1 into a main liquid stream L flowing in a line C.
  • the auxiliary liquid L1 is contained in a tank R from which it is taken by a metering pump 9 with a differential piston 10 with movement rectilinear alternative.
  • a metering pump is known, in particular according to EP0255791
  • the pump 9 has a first inlet 11 for receiving a main liquid flow which drives the pump, a second inlet 12 for withdrawing the auxiliary liquid L1 by means of a tube 13 immersed in the reservoir R and a output 14 for mixing auxiliary liquid and main liquid.
  • the mixer M is arranged such that its ducts 3, 4 are vertical and the inlet connection pipe 3a is connected to the outlet 14 of the pump 9 via a pipe 15, in particular a flexible pipe.
  • the outlet pipe 4a of the mixer is connected to the pipe C.
  • a flow divider V having a venturi, is inserted in line C and pump 9 is connected in parallel with the flow divider.
  • the first inlet 11 of the pump is connected by a first pipe 16 to the inlet of the flow divider, while the outlet 14 of the pump is connected by the pipe 15 to the mixer M whose output 4a is connected to the neck of the flow divider, constituting part of the pipe C.
  • the dosing device D of Fig. 2 may further comprise variable throttling means 17 of the flow divider neck.
  • a valve 18 to break a potential vacuum is advantageously provided at the connection port of the flow divider V with the outlet pipe 4a of the mixer.
  • the diameter of the inlet pipe 3a is at least equivalent to the diameter of the outlet 14 of the pump.
  • the volume of the container of the mixer M is at least equal to three times the displacement of the pump 9.
  • the displacement corresponds to the volume displaced during a round trip of the differential piston 10.
  • the mixer M can be made with two identical half-pieces 1a, turned and assembled head to tail, according to the vertical plane Q assembly.
  • the mixer has an identical threaded input and output.
  • the inlet is connected by a connection J to the outlet of the pump 9.
  • ducts 3 and 4 are horizontal and offset.
  • the mixer according to the invention while being of simple and economical production, makes it possible to obtain a homogeneous mixture of at least two liquids, in particular with a relatively small dose of auxiliary liquid, in particular less than 5% of the liquid. main.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Accessories For Mixers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP15701249.3A 2014-01-10 2015-01-06 Mélangeur statique pour homogéneiser un mélange d'au moins deux liquides et dispositif de dosage équipé d'un tel mélangeur Active EP3092064B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1450195A FR3016302B1 (fr) 2014-01-10 2014-01-10 Melangeur statique pour homogeneiser un melange d'au moins deux liquides et dispositif de dosage equipe d'un tel melangeur
PCT/IB2015/050094 WO2015104654A1 (fr) 2014-01-10 2015-01-06 Melangeur statique pour homogeneiser un melange d'au moins deux liquides et dispositif de dosage equipe d'un tel melangeur

Publications (2)

Publication Number Publication Date
EP3092064A1 EP3092064A1 (fr) 2016-11-16
EP3092064B1 true EP3092064B1 (fr) 2019-03-27

Family

ID=50483114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15701249.3A Active EP3092064B1 (fr) 2014-01-10 2015-01-06 Mélangeur statique pour homogéneiser un mélange d'au moins deux liquides et dispositif de dosage équipé d'un tel mélangeur

Country Status (13)

Country Link
US (1) US10183262B2 (tr)
EP (1) EP3092064B1 (tr)
JP (1) JP6554119B2 (tr)
KR (1) KR20160107171A (tr)
CN (1) CN106102888B (tr)
AR (1) AR098990A1 (tr)
AU (1) AU2015205340B2 (tr)
ES (1) ES2732886T3 (tr)
FR (1) FR3016302B1 (tr)
RU (1) RU2674960C2 (tr)
SG (1) SG11201605466VA (tr)
TR (1) TR201909259T4 (tr)
WO (1) WO2015104654A1 (tr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3001003B1 (fr) * 2013-01-17 2015-03-20 Dosatron International Dispositif de dosage pour introduire un additif liquide dans un courant de liquide principal.
FR3016302B1 (fr) * 2014-01-10 2016-02-05 Dosatron International Melangeur statique pour homogeneiser un melange d'au moins deux liquides et dispositif de dosage equipe d'un tel melangeur
MX2018005056A (es) * 2017-07-19 2019-03-28 Chapin Mfg Inc Dispositivo de tubo venturi variable con vastago de valvula ajustable.
CN108675417B (zh) * 2018-05-13 2021-03-02 九江市蓝天碧水环保有限公司 一种旋转扰动式的污水处理用絮凝搅拌设备的工作方法
DE202018106008U1 (de) * 2018-10-19 2018-11-29 Anni Hjorth Blum Anschlusseinrichtung für eine Acrolein-Ballastwasserbehandlungseinrichtung
US11596911B2 (en) * 2020-04-07 2023-03-07 Mpw Industrial Services Group, Inc. Chemical injection system for connection to a chemical tank and a process line

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FR2602282B1 (fr) 1986-07-31 1988-09-23 Cloup Jean Perfectionnement aux dispositifs d'injection d'un produit additif dose dans un fluide principal
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RU2202406C2 (ru) * 2001-01-12 2003-04-20 Баев Владимир Сергеевич Способ приготовления водотопливной эмульсии, статическое кавитационное устройство для эмульгирования и гидродинамическое многосекционное кавитационное устройство гомогенизации эмульсии
FR2873172B1 (fr) * 2004-07-15 2007-11-02 Dosatron Internat Sa Dispositif de dosage pour introduire un additif dans un courant de liquide
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Also Published As

Publication number Publication date
FR3016302A1 (fr) 2015-07-17
RU2016132754A3 (tr) 2018-07-12
EP3092064A1 (fr) 2016-11-16
ES2732886T3 (es) 2019-11-26
CN106102888B (zh) 2019-03-15
KR20160107171A (ko) 2016-09-13
JP2017501874A (ja) 2017-01-19
SG11201605466VA (en) 2016-08-30
RU2674960C2 (ru) 2018-12-13
RU2016132754A (ru) 2018-02-14
WO2015104654A1 (fr) 2015-07-16
TR201909259T4 (tr) 2019-07-22
AU2015205340B2 (en) 2019-03-28
JP6554119B2 (ja) 2019-07-31
AR098990A1 (es) 2016-06-22
AU2015205340A1 (en) 2016-07-21
US10183262B2 (en) 2019-01-22
US20160325244A1 (en) 2016-11-10
CN106102888A (zh) 2016-11-09
FR3016302B1 (fr) 2016-02-05

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