FR2643287A1 - Device intended for mixing two fluids in a conduit - Google Patents

Device intended for mixing two fluids in a conduit Download PDF

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FR2643287A1
FR2643287A1 FR8905286A FR8905286A FR2643287A1 FR 2643287 A1 FR2643287 A1 FR 2643287A1 FR 8905286 A FR8905286 A FR 8905286A FR 8905286 A FR8905286 A FR 8905286A FR 2643287 A1 FR2643287 A1 FR 2643287A1
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Prior art keywords
mixing
annular space
orifices
fluids
axis
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FR2643287B1 (en
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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
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/435—Mixing tubes composed of concentric tubular members
    • 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
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • 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
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4521—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
    • B01F25/45211—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube the elements being cylinders or cones which obstruct the whole diameter of the tube, the flow changing from axial in radial and again in axial
    • 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
    • B01F2025/912—Radial 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
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/915—Reverse flow, i.e. flow changing substantially 180° in direction

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)

Abstract

Apparatus for mixing two or more fluids initially present in a pipeline 1. The species to be mixed are brought into contact in an annular space 2 one of the walls 4 of which is perforated and whose axis is perpendicular to that of the pipeline. The mixture created by this particularly well suited arrangement can be employed as it is or may be immediately taken up by a second stage 8 which will perform a treatment on a finer scale, for example to emulsify the two species. In both cases the mixture will be discharged into a pipeline 11 or into a storage vessel. Compared with existing systems, the apparatus can operate with a much wider range of flow rates. The homogeneity of the mixture which it creates is moreover much better than that obtained with traditional in-line mixers with the same pressure drop. The overall size of the apparatus is approximately two pipeline diameters, which is very small. Finally, the arrangement of the system allows it to be cleaned easily if need be.

Description

La présente invention est relative â un appareil de mélange dt fluides initialement contenus dans une tuyauterie. Par extension, elle pourrait étire appliquée â des mélanges de fluides et de solides.The present invention relates to a fluid mixing apparatus initially contained in a pipe. By extension, it could be applied to mixtures of fluids and solids.

Le situations dans lesquelles il est nécessaire d'homogénéïser des fluides sont très nombreuses dans l'industrie. Citons, à titre exemple non limitatif, l'homogénésation en température d'un fluide d'une espèce donnée, le mélange de deux fluides de composition chimique différentes, le mélange de deux fluides de couleurs différentes ou le mélange de deux espèces destiné a pouvoir prélever des échantillons représentatifa de leurs proportions moyennes.The situations in which it is necessary to homogenize fluids are very numerous in the industry. Let us mention, by way of nonlimiting example, the temperature homogenesis of a fluid of a given species, the mixing of two fluids of different chemical composition, the mixing of two fluids of different colors or the mixture of two species intended to be able to take samples representative of their average proportions.

Ce type de traitement peut outre nécessaire sur des fluides miscibles ou non. Dans ce dernier cas, il peut etre utile de créer, non -seulement un melange intime, mais également un émulsionnement du mélange pour éviter que les phases se séparent * nouveau après traitement.This type of treatment can additionally necessary on miscible fluids or not. In the latter case, it may be useful to create, not only an intimate mixture, but also an emulsification of the mixture to prevent the phases from separating again after treatment.

La dimension des appareils ê mettre en oeuvre -est très variable, les besoins d'homogénéisation se rencontrant aussi bien sur de très petites tuyauteries, de lcm de diamètre par exemple, que sur de très grandes, de lm de diamètre ou plus par exemple.The size of the apparatuses to be used is very variable, the homogenization requirements being met as well on very small pipes, for example 1 cm in diameter, as on very large ones, of lm in diameter or more, for example.

Les qualités dEun mélangeur en ligne sont les suivantes.The qualities of an online mixer are as follows.

- L'homogênete de la concentration du mélange en sortie. On la caractérise par l'écart type des fluctuations par rapport â la moyenne, et par une longueur caractéristique des fluctuations, ramenée par exemple au diamètre de la conduite.- The homogeneity of the concentration of the mixture at the outlet. It is characterized by the standard deviation of the fluctuations with respect to the mean, and by a characteristic length of the fluctuations, brought back for example to the diameter of the pipe.

- L'encombrement de l'appareil, en particulier selon la direction de l'axe de la tuyauterie.- The size of the device, especially in the direction of the pipe axis.

- La perte de charge de l'appareil, qui sera la plus faible possible.- The loss of load of the device, which will be the lowest possible.

- Le nombre de REYNOLDS minimal pour lequel l'appareil donne un fonctionnement satisfaisant. Plus le nombre de REYNOLDS est faible, ce qui correspond â des fluides plus visqueux, plus il est difficile de réaliser un mélange homogène.- The minimum number of REYNOLDS for which the device gives satisfactory operation. The lower the number of REYNOLDS, which corresponds to more viscous fluids, the more difficult it is to achieve a homogeneous mixture.

- La possibilité de mélanger des fluides de densité différentes. - The ability to mix fluids of different density.

- La facilite d'entretien.- The ease of maintenance.

Les appareils existants ne donnent qu'uns réponse partielle à cee problèmes. Existing devices give only partial answers to these problems.

Parmi les appareils existants les plus performants, on citera celui qui fait l'objet du brevet F 16444, et qui décrit un mélangeur * tales perforées, â axe longitudinal et à chambres coextensives. Cette invention a été faite par l'auteur du présent document. Les performances de cet appareil sont excellentes d'un point de vue du mélange. I1 a cependant l'inconvénient d'6tre difficile à entretenir et de n'avoir pas d'étage d'émulsionnement ou de micro mélangeage intégré.Among the most powerful existing devices, there is that which is the subject of patent F 16444, and which describes a mixer perforated tales, longitudinal axis and coextensive chambers. This invention was made by the author of this document. The performance of this device is excellent from a mixture point of view. However, it has the disadvantage of being difficult to maintain and having no emulsification stage or integrated micro-mixing.

Dans les appareils de mélange en conduite traditionnels, on utilise des aubages fixes de formes diverses. Ces systèmes ont généralement une très grande longueur pour que le mélange soit efficace et présentent des pertes de charge parfois trop importantes. On se référera à l'ouvrage de James Y OLDSHUE "Fluid mixing Techflologyw (Editeur flac Grav Hill) pour plus de détails sur l'état de l'art.In traditional pipe mixers, fixed vanes of various shapes are used. These systems are generally very long for the mixture to be effective and have pressure losses sometimes too high. Reference can be made to James Y OLDSHUE's "Fluid mixing Techflologyw" for more details on the state of the art.

Le procédé objet de la présente invention est représente sur la figure l. Il s'agit d'un dispositif statique de mélange.The method which is the subject of the present invention is shown in FIG. This is a static mixing device.

Le fluide d homogénéiser initialement présent dans la tuyauterie (1) et dirigé suivant FO pénètre dans l'espace annulaire (2) ménagé entre les parois de la cuve de mélange (3) et celles de la virole (4). I1 s'écoule dans cet espace avant de pénétrer dans un second espace annulaire t6l situé entre la virole (4) et une seconde virole (5). Pour que l'écoulement puisse se produire, des orifices (7) euront été ménagés dans la virole (4). La perte de charge qu'ils créent aura été calculée selon les règles de l'art connu pour que l'espace annulaire (6) soit alimenté de manière homogène par le fluide.Les orifices pourront, par exemple etre les trous d'une tOle perforée. The homogenizing fluid initially present in the pipe (1) and directed along FO penetrates into the annular space (2) formed between the walls of the mixing tank (3) and those of the shell (4). It flows into this space before entering a second annular space t6l located between the ferrule (4) and a second ferrule (5). For the flow to occur, holes (7) have been formed in the shell (4). The pressure drop that they create will have been calculated according to the rules of the prior art so that the annular space (6) is fed homogeneously by the fluid. The orifices may, for example, be the holes of a head. perforated.

Le mélange souhaité se fait dans l'espace annulaire (6). Les couches inférieures de fluide que l'on a représentées en hachuré fin sur la figure l pénètrent dans cet espace dans sa zône inférieure selon les flèches Fl, tandis que les couches supérieures pénètrent dans cet espace en partie supérieure selon F2. Les jets formés au travers des orifices (7) permettent d'homogénéser le liquide qui les constitue avec celui qui monte dans l'espace annulaire, ce mélange étant particulièrement efficace, étant donné la faible épaisseur de l'espace annulaire.The desired mixture is in the annular space (6). The lower layers of fluid which have been shown in fine hatching in FIG. 1 enter this space in its lower zone according to the arrows F1, whereas the upper layers penetrate into this space in the upper part along F2. The jets formed through the orifices (7) make it possible to homogenize the liquid which constitutes them with that which rises in the annular space, this mixture being particularly effective, given the small thickness of the annular space.

Le système permet donc de réaliser le transport des différentes couches de fluide dans l'espace annulaire (2), puis de les mélanger dans l'espace annulaire (6) de telle sorte que, lorsque le fluide quitte ledit espace (6), il soit très homogène, ce qui est schématisé par une hachure plussl che. The system therefore makes it possible to transport the different fluid layers in the annular space (2) and then to mix them in the annular space (6) so that, when the fluid leaves said space (6), it is very homogeneous, which is schematized by a hatch plussl che.

Lorsque le fluide quitte l'espace (6? sur la figure l, on peut souhaiter diminuer encore les échelles caractéristiques des.When the fluid leaves the space (6 'in FIG. 1, it may be desired to further reduce the characteristic scales of the.

fluctuations de concentration du mélange et donc réaliser ce que les spécialistes appellent un micro mélange; On peut également souhaiter créer une émulsion dans le cas od les fluides sont non miscibles. Pour réaliser l'une ou l'autre de ces opérations, on fait passer le fluide selon les flèches F3 au travers de la tdle perforée (8) dont les orifices (9) seront en général plus petits et de section cumulée plus faible que les orifices (7 > . Au travers de ces jets, la perte de charge pourra etre suffisamment élevée et la forme des orifices adaptée pour que l'on puisse réaliser le processus souhaité.concentration fluctuations of the mixture and therefore achieve what the specialists call a micro-mixture; It may also be desirable to create an emulsion in the case where the fluids are immiscible. To carry out one or the other of these operations, the fluid is passed along the arrows F3 through the perforated plate (8) whose orifices (9) will generally be smaller and of smaller cumulative section than the Through these jets, the pressure drop can be sufficiently high and the shape of the orifices adapted so that the desired process can be carried out.

Sur la figure 2, la têle perforée est double, la seconde pouvent se déplacer par rapport * la première de telle sorte que l'on puisse découvrir les orifices de manière variable.In Figure 2, the perforated head is double, the second can move relative to the first so that one can discover the holes variably.

Ceci permet, par exemple, de garder constante la perte decharge des orifices pour que le processus de traitement secondaire garde sa qualité en cas de changement du debit principal.This makes it possible, for example, to keep the discharge loss of the orifices constant so that the secondary treatment process retains its quality in the event of a change in the main flow.

Après que l'écoulement ait traversé cette seconde tble perforée, il est réintroduit dans la tuyauterie d'évacuatiôn (li > selon F4 au travers du coude (10). Le processus de mélange est alors terminé et le fluide quitte le mélangeur selon F5.  After the flow has passed through this second perforated tube, it is reintroduced into the evacuation line (F4 through the elbow (10), and the mixing process is completed and the fluid leaves the mixer at F5.

Noua donnons un exemple de dimensionnement typique du mPlangeur ci-dessus décrit t
- Diamètre de la tuyauterie d'entrée t 400 mm.We give an example of typical sizing of the mixer described above.
- Diameter of the inlet piping t 400 mm.

- Diamètre de la cuve de mélange: 800 mm. - Diameter of the mixing tank: 800 mm.

- Diamètre de la première virole (4):600 mm. - Diameter of the first ferrule (4): 600 mm.

- Diamètre de la seconde virole (8): 400 mm. - Diameter of the second ferrule (8): 400 mm.

- Hauteur de la partie perforée de la virole(4): 400 mm. - Height of the perforated part of the shell (4): 400 mm.

- Taux de perforation, supposé homogène: 16%.- Perforation rate, assumed to be homogeneous: 16%.

- Diamètre des orifices(7 > t 15 mm.- Orifice diameter (7> t 15 mm.

- Hauteur de la partie perforée de la virole(8): 400 mm. - Height of the perforated part of the ferrule (8): 400 mm.

- Taux de perforation, supposé homogène: BX. - Perforation rate, supposedly homogeneous: BX.

- Diamètre des orifices(S): 10 mm. - Orifice diameter (S): 10 mm.

Avec ce dimensionnement, la perte de charge totale de l'appareil, pour une vitesse moyenne d'écoulement de 2 m/ dans la tuyauterie d'alimentation (1) sera de l'ordre de 10* Pa pour un liquide de densité proche de celle de l'eau, soit, en unités plus courantes, de 1 m de fluide.With this dimensioning, the total pressure drop of the apparatus, for an average flow rate of 2 m / in the supply piping (1) will be of the order of 10 * Pa for a liquid density close to that of water, that is, in more common units, 1 m of fluid.

Au cas où la tôle de micromélange ne serait pas mise en place, et remplacée par une tôle â forte perforation, cette perte de charge servit réduite d'un coefficient de l'ordre de 3. Elle serait alors particulièrement faible comparée à celle de la plupart des appareils existants.If the micromix plate is not put in place, and replaced by a sheet with high perforation, this pressure drop served reduced by a coefficient of the order of 3. It would be particularly low compared to that of the most existing devices.

La figure 2 présente le meme appareil muni d'un dispositif de réglage des orifices 9.FIG. 2 shows the same apparatus provided with an orifice adjustment device 9.

pUne virole supplémentaire (12) glisse verticalement le long de
la virole fixe (8). La virole (12) est munie de perforation.an additional ferrule (12) slides vertically along
the fixed ferrule (8). The shell (12) is provided with perforation.

(15) qui peuvent être mises en regard de celles de la virole
t8), de telle sorte que les trous de la virole (8) apparaissent
débouchée. En faisant glisser la virole (l2) au moyen du
dispositif (13) de commande, monté sur son support (14 > , on
peut modifier l'ouverture des orifices en regard, jusqu'à les obstruer complètement. De cette manière, on fait varier la perte de charge de chacun des orifices et l'on peut ajuster le taux de dissipation d'énergie turbulente à l'aval de chacun d'eux. Une telle disposition est, par exemple, particulièrement intéressante lorsque l'on veut régler la finesse d'une émulsion dans le cas ou les fluides à mélanger sont non miscibles. (15) that can be compared to those of the ferrule
t8), so that the holes of the ferrule (8) appear
uncorked. By sliding the ferrule (12) with the
control device (13) mounted on its support (14>,
can change the opening of the opposite openings, until completely obstructing them. In this way, the pressure drop of each of the orifices is varied and the rate of turbulent energy dissipation downstream of each of them can be adjusted. Such an arrangement is, for example, particularly advantageous when it is desired to adjust the fineness of an emulsion in the case where the fluids to be mixed are immiscible.

La figure 3 donne une variante de l'appareil dents le cas où les fluides å mélanger sont de densité différentes. Il faut alors éviter de créer des gradients de concentration azimut-ux et il importe donc que les différentes couches de fluide pénètrent dans ltespace(6)de manière uniforme en azimuth par rapport é l'axe vertical.Pour éviter la création de gradients de concentration permanents ou instationnaires dans le sens vertical dans la chambre (2), qui, eux-memes conduiraient t des gradients azimutaux, on met en place des plaques horizontales (16) qui canalisent les différentes couches de fluide selon les flèches F6 et conduisent a une meilleure homogénéïté en sortie du tube (6).Figure 3 shows a variant of the apparatus teeth the case where the fluids to be mixed are of different density. It is therefore important to avoid creating azimuth-ux concentration gradients and it is therefore important that the different fluid layers enter the space (6) uniformly in azimuth with respect to the vertical axis.To avoid the creation of concentration gradients permanent or unsteady in the vertical direction in the chamber (2), which themselves would lead to azimuthal gradients, horizontal plates (16) are put in place which channel the different fluid layers according to the arrows F6 and lead to a better homogeneity at the outlet of the tube (6).

La figure 4 donne un exemple de rbalisation possible d'un mélangeur simplifié basé sur les principes ci-dessus décrits, mélangeur mono étagé. Quoique moins bonnes que celles des appareils ci-dessus décrits, ses performances sont acceptables dans bien des applications pratiques. Les fluides à mélanger suivent les flèches F7 et F8.Figure 4 gives an example of possible realization of a simplified mixer based on the principles described above, single stage mixer. Although not as good as those of the apparatuses described above, its performance is acceptable in many practical applications. The fluids to be mixed follow arrows F7 and F8.

La figure 5 donne un exemple de réalisation d'un mélangeur * 4 étages. le fluide suit les flèches F9,F10 et Pli.Figure 5 shows an embodiment of a mixer * 4 stages. the fluid follows the arrows F9, F10 and P11.

I1 est bien évident qu'il serait possible de multiplier le nombre de tels étages. une telle disposition pourrait, par exemple s'avérer utile dans un processus nécessitant un temps de séjour relativement important en milieu agité de manière homogene.  It is quite obvious that it would be possible to multiply the number of such stages. such an arrangement could, for example prove to be useful in a process requiring a relatively long residence time in a homogeneously agitated medium.

Claims (5)

REVENDICATIONS. CLAIMS. I. Dispositif statique de mélange de fluides en circulation dan. une canalisation (1), caractérisé en ce que les fluides à mélanger pénètrent dans une cuve (3) d'axe quasi perpendiculaire b celle de la conduite, qu'ils sont réparti. I. Static device for mixing fluids in circulation dan. a pipe (1), characterized in that the fluids to be mixed enter a tank (3) of axis almost perpendicular to that of the pipe, they are distributed. dans un espace annulaire (2) compris entre deux viroles < 3) et (4 > d'axes quasi parallèlles a celui de ladite cuve, qu'il. in an annular space (2) between two ferrules <3) and (4> axes substantially parallel to that of said vessel, that it. traversent l'une des parois constituant ledit espace annulaire au travers d'orifices (7) quasi equirépartis, le mélange- intime des fluides étant réalisé dans l'espace annulaire existant entre la virole qu'ils viennent de traverser et une troisième virole, d'axe quasi parallèle à celui des deux premières, ledit fluide ayant, entre-ces deux dernières viroles, un trajet quasi parallèle å l'axe commun, tandis que l'alimentation eu travers des orifices se fait de manière quasi perpendicuqaire * cette direction d'écoulement, cette disposition permettant de réaliser un mélange des espèces constituant le fluide dans un espace de longueur très réduite, favorable à une bonne efficacité du mélange, le nombre de chambres de mélange en espace annulaire ainsi constituées étant au moins égal à 1.through one of the walls constituting said annular space through orifices (7) almost equidistributed, the intimate-mixing of the fluids being made in the annular space existing between the ferrule they have just crossed and a third ferrule, d the axis almost parallel to that of the first two, said fluid having, between these last two ferrules, a path substantially parallel to the common axis, while the feed through orifices is done almost perpendicularly * this direction d flow, this arrangement making it possible to achieve a mixture of species constituting the fluid in a space of very small length, favorable to a good mixing efficiency, the number of annular space mixing chambers thus formed being at least equal to 1. 2. Dispositif selon la revendication N01 caractérisé en ce que l'axe dela chambre de mélange est vertical.2. Device according to claim N01 characterized in that the axis of the mixing chamber is vertical. 3. Dispositif selon la revendication N01 caractérisé en ce que l'une des cloisons (S > est munie d'orifices à section variable, ladite seotion variable étant réalisée au moyen de deux tôles (8) et (12) quasi-également perfores dont les orifices peuvent etre déplacés les uns par rapport aux autre de telle sorte que l'on puise faire varier l'ouverture du trou constitué de la projection de deux des dits orifices, dans une fourchette comprise entre l'ouverture totale et la fermeture totale, le mouvement des deux tôles pouvant se faire par translation selon l'axe de la cuve de mélange ou par rotation autour de ce même exe, la solution mise en oeuvre dépendant de critères technologiques. 3. Device according to claim N01 characterized in that one of the partitions (S> is provided with orifices of variable section, said variable sowing being performed by means of two sheets (8) and (12) quasi-also perforated which the orifices can be moved relative to one another so that the opening of the hole consisting of the projection of two of said orifices can be varied in a range between the total opening and the total closure, the movement of the two plates can be done by translation along the axis of the mixing tank or by rotation around the same exe, the solution implemented depending on technological criteria. 4. Dispositif selon la revendication N01 caractérisé en ce que lssalimentation du premier espace annulaire s'effectue entre de couronnes quasi cylindriques quasi horizontales (16) placée à différentes hauteurs destinées à mieux canaliser le. 4. Device according to claim N01 characterized in that the feeding of the first annular space is between quasi-cylindrical quasi-horizontal rings (16) placed at different heights for better channeling the. différentes strates de fluide avant qu'elles ne pénètrent dan.different strata of fluid before they enter dan. le second espace annulaire ce système ayant pour but de rendre le distribution azymuthale des espèces mélangées la plus homogène possible en sortie de l'espace annulaire dans lequel est effectué le mélange.the second annular space this system for the purpose of making the azymuthal distribution of the mixed species as homogeneous as possible at the outlet of the annular space in which the mixing is carried out. 5.Dispositif selon lsune quelconque des revendications ci dessus caractérisé en ce que l'une des extrémités de la cuve de mélange est munie d'un couvercle démontable (17 > permettant l'inspection, le démontage et le nettoyage des composants du mélangeur en cas d'encrassage ou de détérioration de l'un ou l'autre des composants. 5.Dispositif according to any one of the claims above characterized in that one end of the mixing tank is provided with a removable cover (17> for inspection, disassembly and cleaning of the mixer components in case fouling or deterioration of one or the other of the components.
FR8905286A 1989-02-20 1989-02-20 DEVICE FOR MIXING TWO FLUIDS IN A DUCT Expired - Lifetime FR2643287B1 (en)

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FR8905286A FR2643287B1 (en) 1989-02-20 1989-02-20 DEVICE FOR MIXING TWO FLUIDS IN A DUCT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8905286A FR2643287B1 (en) 1989-02-20 1989-02-20 DEVICE FOR MIXING TWO FLUIDS IN A DUCT

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FR2643287A1 true FR2643287A1 (en) 1990-08-24
FR2643287B1 FR2643287B1 (en) 1991-05-31

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001005517A1 (en) * 1999-07-16 2001-01-25 Bayer Aktiengesellschaft Dispersion nozzle with variable throughput
RU2717265C1 (en) * 2019-10-07 2020-03-19 Гусейнова Светлана Александровна Mixer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE525229A (en) *
NL6708295A (en) * 1967-06-15 1968-12-16
DE1782047B1 (en) * 1968-07-12 1972-01-05 N.V. Fabriek van Maalinstallaties, Winterswijk (Niederlande) DEVICE FOR THE CONTINUOUS HOMOGENIZATION OF A MIXTURE OF LIQUIDS
US4043539A (en) * 1975-03-28 1977-08-23 Texaco Inc. Method and apparatus for static type fluid mixing
EP0064137A1 (en) * 1981-05-05 1982-11-10 ALSTHOM-ATLANTIQUE Société anonyme dite: Apparatus for raising the homogeneity of a mixture of fluids flowing together in a canalization
US4386855A (en) * 1981-06-25 1983-06-07 The United States Of America As Represented By The Secretary Of The Navy High pressure mechanical mixer for epoxy compounds
FR2540260A1 (en) * 1983-02-01 1984-08-03 Jaouen Jean Mixer device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE525229A (en) *
NL6708295A (en) * 1967-06-15 1968-12-16
DE1782047B1 (en) * 1968-07-12 1972-01-05 N.V. Fabriek van Maalinstallaties, Winterswijk (Niederlande) DEVICE FOR THE CONTINUOUS HOMOGENIZATION OF A MIXTURE OF LIQUIDS
US4043539A (en) * 1975-03-28 1977-08-23 Texaco Inc. Method and apparatus for static type fluid mixing
EP0064137A1 (en) * 1981-05-05 1982-11-10 ALSTHOM-ATLANTIQUE Société anonyme dite: Apparatus for raising the homogeneity of a mixture of fluids flowing together in a canalization
US4386855A (en) * 1981-06-25 1983-06-07 The United States Of America As Represented By The Secretary Of The Navy High pressure mechanical mixer for epoxy compounds
FR2540260A1 (en) * 1983-02-01 1984-08-03 Jaouen Jean Mixer device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001005517A1 (en) * 1999-07-16 2001-01-25 Bayer Aktiengesellschaft Dispersion nozzle with variable throughput
US7007711B1 (en) 1999-07-16 2006-03-07 Bayer Aktiengesellschaft Dispersion nozzle with variable throughput
RU2717265C1 (en) * 2019-10-07 2020-03-19 Гусейнова Светлана Александровна Mixer

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