EP0096746B1 - Procédé et dispositif de préparation de mélanges et de dosages "in-line" de composants difficilement mélangeables, comme par exemple l'eau et les polymères - Google Patents

Procédé et dispositif de préparation de mélanges et de dosages "in-line" de composants difficilement mélangeables, comme par exemple l'eau et les polymères Download PDF

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Publication number
EP0096746B1
EP0096746B1 EP83104512A EP83104512A EP0096746B1 EP 0096746 B1 EP0096746 B1 EP 0096746B1 EP 83104512 A EP83104512 A EP 83104512A EP 83104512 A EP83104512 A EP 83104512A EP 0096746 B1 EP0096746 B1 EP 0096746B1
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EP
European Patent Office
Prior art keywords
mixed
mixing
pipe
inlet
materials
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
Application number
EP83104512A
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German (de)
English (en)
Other versions
EP0096746A2 (fr
EP0096746A3 (en
Inventor
Jürgen Raak
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.)
Allied Colloids Manufacturing GmbH
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Allied Colloids Manufacturing 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 Allied Colloids Manufacturing GmbH filed Critical Allied Colloids Manufacturing GmbH
Priority to AT83104512T priority Critical patent/ATE33764T1/de
Publication of EP0096746A2 publication Critical patent/EP0096746A2/fr
Publication of EP0096746A3 publication Critical patent/EP0096746A3/de
Application granted granted Critical
Publication of EP0096746B1 publication Critical patent/EP0096746B1/fr
Expired legal-status Critical Current

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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
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/49—Mixing systems, i.e. flow charts or diagrams
    • 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
    • B01F23/50—Mixing liquids with solids
    • B01F23/59—Mixing systems, i.e. flow charts or diagrams
    • 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
    • B01F35/50—Mixing receptacles
    • B01F35/514—Mixing receptacles the mixing receptacle or conduit being transparent or comprising transparent parts

Definitions

  • the present invention is based on a method and an apparatus for producing mixtures and in-line doses of components which are difficult to mix, such as water and polymers.
  • the invention specified in claim 1 has for its object to provide a method of the type mentioned, with which the introduced mixes are initially kept “contactless”, so to speak, by a gas or air cushion, resulting in a high level of operational reliability, a clear operational sequence, since the mixing cells consist of transparent, pressure-insensitive material, as well as an in-line dosing - continuous operation - with all advantages compared to a discontinuous operation.
  • a device which consists in one or two mixing cells equipped with a turbine, each with a feed line for a first mixture, preferably H 2 O, and with a feed line for a second one Mixed material, preferably PAA in emulsion or dispersion form, which is conveyed via a feed pump, is / are connected, a third, gaseous mixed material being able to be metered in by means of an injector, and that the outlet of the mixing cell / s, each with a tube mixer, for intensive mixing the mixed goods are connected.
  • the essential advantage is achieved that, due to the contactless state of the mixed goods, which initially arises through the gas or air cushion, after the introduction of the mixed goods, the original mixed goods, even when the device is inoperative, can never touch directly, as a result of which the considerable disturbances already mentioned known systems are switched off.
  • the device essentially consists of two mixing cells 1 and 2, which can be operated individually or together, depending on the required throughput.
  • the mixing cells are each connected via a line 3, 4 to a three-way valve 5 for direction selection and serve to supply a first, liquid mixture, preferably H 2 O.
  • the mixing cells are each connected to a further feed line 6, 7, which is used to supply a second mixture, preferably liquid PAA, which is conveyed by a feed pump, not shown.
  • a second mixture preferably liquid PAA
  • the output of the mixing cells 1, 2 leads to a tube mixer 8, 9, which are connected to the two inputs of a three-way valve 10, the output of which leads via a line 11 and a flow meter 12 to the output line 13 for the solution, for example with a solenoid valve 14 or a metering pump 14 'or a maturation 29 is completed.
  • the two mixing cells are each provided with a pressure meter 15, 16, and a further outlet pressure meter 17 is arranged in the outlet line 11.
  • the device according to the invention makes it possible to meter a third, gaseous mixture, for example air, into the first and thus also the second mixture.
  • an injector 18 is provided, to which H 2 O is supplied via a flow meter 19 provided with a flow monitor 19 'and an inlet pressure meter 20 (FIG. 2) via a feed line 21.
  • the injector 18 has an inlet 22, to which a gas, for example air, can be supplied via a feed line 23, with an inlet Vacuum meter 24 the efficiency of the injector can be read continuously or adjusted by means of a flow meter 28.
  • the output of the injector is also connected to the input of the three-way valve 25, in which the quantity and direction selection can be set.
  • the output of this three-way valve 25 is connected to the input of the three-way valve 5 for direction selection.
  • the three-way valve 25 is directly connected to the supply line 21 for H 2 0.
  • the second mix is continuously added to the mixing cells 1 and 2 in proportion to the flow rate of the first mix through the feed or metering pump, not shown.
  • the respective mixing cell can be determined by adjusting the three-way valve or 10.
  • a third, gaseous mix is metered in via the injector 18.
  • the gas-air supply can also be used to regulate the level in the mixing cells, ie increasing the air cushion with the effect that the filling level drops and thus, for example, a more favorable mixing effectiveness.
  • the respective mixes are fed over a distance.
  • the primary mixing or dispersion is carried out by rotating one or both of the turbines 26, 27 provided in the mixing cells, which is generated by the pressure difference of the first material to be mixed, preferably H 2 O.
  • the intensive mixing of the mixed materials is completed by means of the static tube mixers 8, 9 and fed to the solution outlet via the three-way valve 10 and the outlet line 11.
  • the predetermined flow rate of the solution is continuously checked by means of the flow monitor 12 'on the flow rate meter 12.
  • the flow rate of the first material to be mixed is also checked by means of the flow monitor 19 'on the flow meter 19. In the event of deviations from the set target value, corresponding switching processes, not shown, can turn on signal lights, for example.
  • the flow rate of the gas in particular the air, can be adjusted via the flow rate meter 28.
  • the amount of drive i.e. the water flow for the injector, can be determined or fixed primarily in advance via the nozzle size. Small changes in quantity can also be set on valve 25.
  • a reformation 29 can also be provided in the outlet line 13. This maturation is necessary for some mixed goods in order to achieve the full effectiveness of the solutions. In principle, the solution is forced to circulate in order to gain maturation time. In the previously known systems were u. a. very large, voluminous ripening containers required, which is why an open system with additional, also large-sized metering pumps, etc. had to be accepted.
  • a reformation is shown, which is shown in principle in FIG. 3 and consists of one or more, in the present case three, pressure-tested maturation cells 29, which can be uncoupled or coupled as a maturation cell battery in the modular system.
  • Pressure meters 30 can be provided in each case at the entrance or exit of the cells.
  • the output 31 then contains the matured mixture, which leads to the end user or to a further post-dilution station.
  • flow monitors 12 ', 19' with, for example, an electromagnetic function can be installed on the flow meters 12, 19 to maintain the solution concentrations or quantitative proportions of the individual mixed materials.
  • electrical pulses are generated which bring about electrical switching processes in circuit arrangements (not shown), for example switching on a warning system.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Accessories For Mixers (AREA)
  • Medicinal Preparation (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (11)

1. Procédé continu pour la fabrication de mélanges et de dosages "in-line" de composants difficilement mélangeables, comme par exemple l'eau et les polymères, dans lequel on amène les produits à mélanger dans au moins une cellule de métange, caractérisé par le fait qu'aussi bien les produits à mélanger qu'un gaz ou de l'air sont amenés dans au moins une cellule de mélange munie d'une turbine et constituée en une matière transparente, un coussin de gaz ou d'air étant formé pour séparer tout d'abord les produits à mélanger qui se trouvent dans la cellule de mélange munie d'une turbine ou pour éviter le contact direct des points de dosage, et le mélange final intensif ayant ensuite lieu dans un mélangeur à tube relié à la cellule de mélange.
2. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, composé d'une ou plusieurs cellules de mélange (1, 2) dont chacune est munie d'une turbine (26, 27) et constituée en une matière transparente, et qui sont reliées chacune à une canalisation d'amenée (3, 4) pour un premier produit à mélanger et à une canalisation d'amenée (6, 7) pour un deuxième produit à mélanger, et d'un injecteur (18), un troisième produit à mélanger gazeux, par exemple de l'air, pouvant être ajouté en quantités dosées au moyen de l'injecteur (18) au premier, et donc aussi au deuxième produit à mélanger, et la sortie de la ou de chaque cellule de mélange étant reliée à un mélangeur a tube (8, 9) pour mélanger de manière intensive les produits à mélanger.
3. Dispositif selon la revendication 2 à deux cellules de mélange (1, 2), dont les canalisations (3,4) pour l'amenée du premier produit à mélanger liquide et du troisième produit à mélanger gazeux sont reliées aux deux sorties d'une vanne à trois voies (5), dont l'entrée est reliée à la sortie d'une autre vanne à trois voies (25) pour le choix des quantités et de la direction du premier produit à mélanger, dont la première entrée est reliée à un injecteur (18) pour l'addition dosée du troisième produit gazeux, par exemple de l'air, l'air étant en communication avec l'injecteur (18) par une canalisation (23) à travers un débitmètre (28), et dont la deuxième entrée pour le dosage du premier produit à mélanger est reliée à un débitmètre (19) par une canalisation (21).
4. Dispositif selon la revendication 2, dans lequel les deux mélangeurs à tubes (8, 9) sont en communication avec les deux entrées d'une autre vanne à trois vannes (10) pour le choix de la direction, dont la sortie est en communication par une canalisation (11) et un débitmètre (12) avec la canalisation (13) de sortie pour la solution qui est fermée par exemple par une vanne magnétique (14), une pompe doseuse (14') ou un poste de maturation (29).
5. Dispositif selon la revendication 2, comprenant des manomètres (15,16) montés sur les cellules de mélange (1, 2).
6. Dispositif selon une ou plusieurs des revendications 2 à 5, comprenant un indicateur de vide (24) monté sur la canalisation (23) d'amenée de gaz ou d'air à l'entrée (22) de l'injecteur (18).
7. Dispositif selon une ou plusieurs des revendications 2 à 6, où, pour déterminer la pression de la solution qui se trouve dans la canalisation de sortie (11), un manomètre de sortie (17) est monté sur cette canalisation.
8. Dispositif selon une ou plusieurs des revendications 2 à 7, où un manomètre d'entrée (20) est monté sur le côté de l'entrée du débitmètre (19) destiné au premier produit amené (H20).
9. Dispositif selon une ou plusieurs des revendications précédentes, où une vanne magnétique (14) ou, en variante, une pompe doseuse (14'), se trouve sur la canalisation de sortie (13) après le mélangeur à tube.
10. Dispositif selon une ou plusieurs des revendications précédentes, où un poste de maturation composé d'un ou plusieurs réservoirs de maturation (29) se trouve sur la canalisation de sortie (13), les réservoirs de maturation (29) pouvant être accouplés ou découplés individuellement en un système modulaire.
11. Dispositif selon une ou plusieurs des revendications précédentes, où, pour maintenir la concentration des solutions ou les proportions des divers produits à mélanger, des contrôleurs de débit (12', 19'), à fonctionnement électromagnétique par exemple, sont installés sur les débitmètres (12, 19) et sont reliés à des circuits électriques pour engendrer des impulsions déclenchant un avertisseur lorsque l'on s'écarte de la valeur de consigne.
EP83104512A 1982-06-12 1983-05-07 Procédé et dispositif de préparation de mélanges et de dosages "in-line" de composants difficilement mélangeables, comme par exemple l'eau et les polymères Expired EP0096746B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83104512T ATE33764T1 (de) 1982-06-12 1983-05-07 Verfahren und vorrichtung zur herstellung von mischungen und in-line-dosierungen schwer mischbarer komponenten, wie zum beispiel wasser und polymere.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3222209 1982-06-12
DE3222209A DE3222209C2 (de) 1982-06-12 1982-06-12 Verfahren und Vorrichtung zur kontinuierlichen Herstellung einer Mischung aus zwei schwer mischbaren Komponenten, vorzugsweise aus Wasser und einer Polyacrylamid-Suspension

Publications (3)

Publication Number Publication Date
EP0096746A2 EP0096746A2 (fr) 1983-12-28
EP0096746A3 EP0096746A3 (en) 1986-04-30
EP0096746B1 true EP0096746B1 (fr) 1988-04-27

Family

ID=6165969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104512A Expired EP0096746B1 (fr) 1982-06-12 1983-05-07 Procédé et dispositif de préparation de mélanges et de dosages "in-line" de composants difficilement mélangeables, comme par exemple l'eau et les polymères

Country Status (3)

Country Link
EP (1) EP0096746B1 (fr)
AT (1) ATE33764T1 (fr)
DE (2) DE3222209C2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211433B (en) * 1987-10-27 1991-10-16 Balfour Mfg Mixing method
DE19806934A1 (de) * 1998-02-19 1999-09-30 Raak Juergen Verfahren und Vorrichtung zur kontinuierlichen Herstellung homogener Mischungen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT90958B (de) * 1920-08-28 1923-01-25 Krupp Ag Gegen Verdrehung und Verschiebung gesicherte Verbindung der Antriebswelle mit dem Rührflügel von Rührwerken.
US3704006A (en) * 1971-01-25 1972-11-28 Kenics Corp Dispersion producing method
DE2746188A1 (de) * 1977-10-14 1979-04-19 Bayer Ag Verfahren und vorrichtung zum mischen und auftragen reaktionsfaehiger stoffe
DE2919656A1 (de) * 1979-05-16 1980-11-27 Fuellpack Dipl Brauerei Ing Di Einrichtung zur kontinuierlichen regelung der einleitung von kohlendiosidgas in eine fluessigkeit, insbesondere ein getraenk

Also Published As

Publication number Publication date
DE3222209A1 (de) 1983-12-15
ATE33764T1 (de) 1988-05-15
DE3222209C2 (de) 1984-06-07
EP0096746A2 (fr) 1983-12-28
DE3376389D1 (en) 1988-06-01
EP0096746A3 (en) 1986-04-30

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