EP1101525B1 - Mélangeur et réacteur - Google Patents

Mélangeur et réacteur Download PDF

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Publication number
EP1101525B1
EP1101525B1 EP00123793A EP00123793A EP1101525B1 EP 1101525 B1 EP1101525 B1 EP 1101525B1 EP 00123793 A EP00123793 A EP 00123793A EP 00123793 A EP00123793 A EP 00123793A EP 1101525 B1 EP1101525 B1 EP 1101525B1
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EP
European Patent Office
Prior art keywords
plant according
segmental
shafts
rotating elements
discs
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 - Lifetime
Application number
EP00123793A
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German (de)
English (en)
Other versions
EP1101525A1 (fr
Inventor
Klaus Brenner
Hans Peters
Rainer Näf
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.)
Buss- Sms Verfahrenstechnik GmbH
Original Assignee
Buss- Sms Verfahrenstechnik 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.)
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Publication of EP1101525A1 publication Critical patent/EP1101525A1/fr
Application granted granted Critical
Publication of EP1101525B1 publication Critical patent/EP1101525B1/fr
Anticipated expiration legal-status Critical
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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
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • B01F27/702—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with intermeshing paddles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B01F27/721—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle
    • B01F27/722—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle the helices closely surrounded by a casing
    • B01F27/7221—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle the helices closely surrounded by a casing the stirrers being composed of helices and paddles on the same shaft, e.g. helically arranged ovally shaped paddles
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/351—Sealings

Definitions

  • the present invention relates to a system for the treatment of products according to the preamble of the claim 1.
  • the housing 1 shown in FIG. 1 of the reactor according to the invention is designed to include two agitator shafts 2 and 3 in a parallel position, which are provided to rotate at the same speed but in the opposite direction.
  • the reactor has a rotor bearing area 4, a final bearing area 5 and a central area 6.
  • the area 4 comprises a bearing housing 41 from the inside out, in which a mechanical seal 42 is located, a floating bearing 43 and a sealing head 44.
  • a discharge screw 51, a discharge flange 52 and a discharge pump 53 are particularly emphasized here .
  • the housing 61, the so-called right rotor or agitator shaft 62 and the so-called left one can be clearly seen from the central area 6 in FIG Rotor or agitator shaft 63.
  • Fig. 3 shows a first section of area 4, in which the floating bearings 43 for both shafts are located, and a second section of the same area, where further bearings integrated in the so-called mechanical seal 42 (fixed bearing) are housed for both shafts. 3 also shows an atmospheric sliding surface 45, a sliding surface 46 to the product space and a process space 47.
  • This special mechanical seal 42 serves as a shaft seal, and the shaft is supported on the drive side, the fixed point bearings being integrated in the special mechanical seal.
  • the so-called worm which comprises two blades or blades 54, 55, partly in the form of a screw surface, the extent of which, in plan view, preferably corresponds to that of a circular sector on the order of 180 °.
  • the twin screw repository Similar to a twin-screw extruder, the twin screw repository also serves as storage and discharge device.
  • the rotors can be driven with chains or, preferably, with a gear mounted directly on the rotors.
  • the reactor is actually a long, large-volume machine with two long parallel core tubes, of which only a part of the central region (FIG. 2) is shown schematically in FIG. 5 .
  • a plurality of cleaning elements 64 are arranged on the core tube 63 one after the other, that is to say along a helical line, preferably welded. As shown in FIGS. 1 and 5, these cleaning elements 64 are connected to one another in pairs by male connectors 65.
  • FIG. 6 shows that not only cleaning elements 64, but also heated segment disks 66 are arranged on the core tubes 62, 63, preferably welded, along a helical line.
  • the cleaning elements 64 are preferably U-shaped.
  • the tubes 62, 63 have two elongate concentric chambers for the circulation of a gaseous or liquid medium for heating and / or cooling the segment disks 66, which are used for this purpose are provided with channel-like cavities.
  • an interior 68 can be provided in a double-walled housing 67.
  • the segment disks 66 are also called main stirrers and the cleaning elements 64 are cleaning stirrers. As shown in FIGS. 1 and 5, the segment disks 66 are not connected to one another by knife strips between the cleaning elements, but rather continuously by a knife strip 69 to one another.
  • the segment disks 66 generally have a greater width in the direction of rotation than the cleaning elements 64.
  • the segment disks 66 are designed as sheet-like disks which have a radial front edge 641 and a radial rear edge 642 in the direction of rotation, the width of which approximately corresponds to the thickness of the disks.
  • the rear edge 642 as shown in FIG. 8 (J-J), has a preferably central symmetrical taper, namely at an angle between approximately 60 ° and 90 °. This results in noticeable advantages with regard to the flow conditions when the sheet is being replaced, so that the back of the sheet is cleaned well.
  • the edge 641 is formed obliquely according to FIG. 9 (K-K).
  • segment disks and two cleaning elements are preferably arranged alternately around the shaft.
  • the segment disks are chamfered in the axial direction on their end faces running parallel to the container wall (section L - L), which minimizes the shear of the product between the segment disc and the container wall. This means that the rotor and housing touch on one line, which reduces chattering.
  • the segment discs and segment scrapers are bevelled on both sides, i.e. tapering (section J - J) to reduce the flow shadow.
  • section K - K the face of the segment disc is beveled in the direction of rotation 631
  • the embodiment according to FIG. 11 has a seal at the end of the end bearing at the melt inlet 110, that is to say the floating bearing.
  • the snail can be stellited.
  • a sliding bushing 114 for example Bernex bushings
  • a stuffing box 115 as well as a gas distributor ring 116 and at least one pusher 117, a protective sleeve 118 preferably being connected to these elements and the shaft
  • a pusher flange 119 provided with a shoulder acts as a support for the pusher 117.
  • a throttle gap 120 is present between the housing 112 and the shaft 113, as shown on the right in FIG. 11.
  • the melt inlet 110 is provided with a connection for the melt. and a connection for nitrogen supply is provided in the gas distributor ring 116.
  • the reactor according to FIGS. 1 to 11 works as follows: The medium for heating or cooling supplied to the reactor during the working process is passed through the interior 68 (FIG. 6) in the double-walled housing 67 and the long interior spaces of the double-walled stirring shafts 62, 63.
  • An embodiment of the invention, which offers further possibilities for heating the material to be processed, is also shown in FIG. 6 .
  • the reactor is provided with additional thermal exchange surfaces in that the stirring arms are designed as segment disks with channel-like cavities 661, which can be heated and / or cooled from the inside, that is to say via the interior of the double-walled stirring shafts 62, 63.
  • the segmented disks 66 arranged in one plane over the circumference of the one agitator shaft are preferably numerically matched to the shear organs or cleaning elements 64 of the other shaft interacting with these segmented disks 66.
  • the outer end face of the segment disks 66 with respect to the inner surface of the housing (FIG. 6) preferably runs concentrically and / or at a small distance from the inner surface of the housing.
  • the cleaning elements 64 have a web in cross section and a segment section at the end of the web, so that there is a leading edge running along the inside of the housing, which can optionally be provided with a tip cutting edge behind the male connector. This can have an advantageous effect when sweeping over the segmented disks 66, since such a cutting edge on the front sweeps over large areas of the thermal exchange surfaces of the segmented disks 66 when they engage with one another and the cleaning elements 64
  • the reactor is therefore preferably provided with such heatable and / or coolable segment disks 66 FIG. 6 , which are arranged on both axially parallel agitator shafts.
  • the agitator shafts are mounted in a housing which can be supported, for example, on four feet and can carry different sockets on the top and bottom.
  • the nozzle 110 according to FIG. 11 is provided for lubrication / sealing, whereas one or more nozzles can be used for the extraction of vapors or vapors or for cleaning and emptying.
  • the material can be discharged both in the axial direction and on the underside, on which further nozzles can be attached for emptying.
  • Both heatable and / or coolable stirrer shafts are preferably driven by an electric motor or hydraulic motor via chain and / or toothed wheels, the ratio of the toothed wheels being designed such that both stirrer shafts rotate at the same speed.
  • the heating takes place, for example, via rotary sealing heads 44 arranged at the outer end of the shaft journals (FIG. 2).
  • the cleaning elements 64 and the segment disks 66 are attached to both agitator shafts, with two segment disks 66 each being associated as stirring elements and two cleaning elements 64 lying next to one another.
  • the cleaning elements or segment scrapers 64 engage between two adjacent segment disks 66 and sweep the front sides of the scraping arms and the end segment segments over the thermal exchange surfaces of the disks.
  • the segment disks 66 are arranged in rows in the longitudinal direction of the agitator shafts, the front outer edge being connected to a continuous knife bar 69, the cutting edge of which is oriented in the direction of rotation.
  • the knife bar 69 thus runs along a helical line.
  • segment scrapers 64 arranged in the circumferential direction between the segment disks 66 are also angularly offset in a row over the length of the agitator shaft, the two scraping arms of the segment scrapers connecting the two scraping blades 65 also being aligned along a helical line that runs parallel to the continuous knife strip.
  • the segment scrapers 64 are preferably offset by 90 ° to the segment disks the agitator shaft 63 attached, so that they always circulate between the Grip segment discs 66 on the opposite agitator shaft 62, the opposite and is built up mirror-symmetrical and thereby a full coverage of the thermally active side surfaces of the segment discs 66 by the segment scraper 64 guaranteed.
  • the knife strips 65 grip the stimulator via the continuous knife strips 69 of the segment disks 66 in the space between the assigned segment disks and sweep them over as their tip circle edges trained segment sections and the front the thermal Exchange surfaces of the segment disks 66 such that the continuous Male connector 69 when engaging in the space between two in the direction of rotation successive segment scraper along the front to the shaft of the each opposing agitator shaft and thereby the one to be treated Material not only mixed and / or shredded intensively, but also thermally effective areas.
  • the segment scraper 64 can, as already mentioned, on the one assigned to the housing wall Segment section have a sharp tip and at the Front side connected in the direction of rotation by the short male connectors 65 his. The cutting edge of this knife bar points in the direction of rotation.
  • the ones with the sharp ones Cutting segment segments of the segment scraper run parallel to the Housing wall. All of these blade-like sharp edges on the scraping tools and the male connectors are used for the automatic cleaning of the thermal exchange surfaces, the circumferential knife bars the inside of the double cylindrical housing 1 scrape.
  • the segment scrapers are used to keep the opposite ones free thermal exchange surfaces of the segment discs up to the agitator shaft and can also cause a shredding of the material, especially if solidifying and clumping products for material accumulation and bridging tend.
  • All tools provided with scraping edges are preferably designed that the scraping edges are grinded and a clearance angle to the to be cleaned Surfaces. This back grinding or turning, which also for the Segment discs on the circumference, causes that in the gap zone between the Scraping edge and the counter surface remaining product is not rolled.
  • the channel-like means consist of two elongated radial bores, the end regions are connected by another hole.
  • the mechanical seal (42) Bearings for both shafts can be integrated. 9 and 10 are in the On the order of 5 ° to 50 ° or 3 ° to 30 °, preferably 21 ° to 35 ° or 7 ° to 14 °.
  • FIG. 11 the reactor explained with reference to FIG. 6 is shown in a perspective partial view, from which the intermeshing of the segment scrapers 64 and the segment disks 66 and the knife bars 65, 69 can be seen when the agitator shafts rotate in relation to one another.
  • Fig. 12 shows a variant for screw discharge, which can also serve as a dryer discharge, for example.
  • a final bearing shaft 121 and two discharge clearing elements 122 are visible in particular.
  • FIG. 1 An alternative to the mechanical seal is shown in FIG .
  • the shafts are supported by a fixed bearing 131, and the shaft seal is implemented in the form of a seal packing 132 or by means of gland packing.
  • FIG. 14 shows a melting apparatus with a product discharge 141, an upper product inlet 142 being located at the beginning of the middle area (FIG. 2).
  • the distance between the product inlet 142 and a vapor outlet 143 is smaller than between this last and the other end of the middle region 6.
  • both shafts run with the same Speed, both shafts in the same way both as working shafts with the heatable or coolable segment discs as well as cleaning shafts with suitable Cleaning elements for mutual cleaning.
  • a transmission with two drive shafts with the same center distance as in the Rotors used with heating by a gear shaft with a suitable coupling or from the repository side.
  • the reactor according to the invention can also be used, for example, as a reactor for polymer melts and degassing equipment of elastomers or as a dryer for solids, etc.
  • the Reactor according to the invention can be designed such that when the product is discharged Repository has means (54, 55; 122; 113) to act as a discharge device at the same time, and that is lubricated by the product itself.
  • the variant of the rotating element shown in FIG. 16 according to FIG. 7 with disks 74 and 76 (FIG. 16), which are similar to parts 64 and 67 in FIG. 7, is provided with special transport strips 75, 79, 80, which, in contrast to the transport strips 65 (FIG. 7), which are also called knife strips, have an at least approximately radially oriented front surface 81.
  • the transport strips 75 and 79 have a connection area 82 and a work area 83, in which the front surface 81 is located.
  • the cross section of the working area can be designed, for example, polygonal, square, rectangular or trapezoidal and / or have a projection 84 which is formed radially outwards in the leading area, that is to say in the front area in the direction of rotation.
  • the optional trailing transport bar or cleaning bar 80 of the segment disk 76 does not have a pronounced connecting part, although otherwise all of the bars can be constructed identically.
  • a further improved cleaning thanks to the trailing strip 80 can also achieve a narrower residence time distribution as an option for certain products.
  • With continuous operation there may be very different residence times of the individual particles in a material flow, some particles can get directly from the inlet to the outlet, while others can remain in the reactor for a very long time. This behavior is characterized by the residence time distribution. In contrast, the dwell time is the same for all particles in a batch in batch operation.
  • the working area 83 is preferably designed such that the front surface 81 in the Cross section each defines a straight line 85 which defines the geometric axis of rotation 86 intersects or lies at a small distance from this axis 86. This makes the centrifugal force better in the radial direction than in the embodiment of FIG. 7, what operation is particularly advantageous with highly viscous products.
  • FIGS. 17, 18 and 19 Some details of the cross sections in the area of the section lines JJ, KK and LL in FIG. 16 are shown in FIGS. 17, 18 and 19 , respectively.
  • the oblique surfaces of the contour gfh in FIG. 17 prove to be advantageous for cleaning the surface emerging from the melt pool by avoiding that material, in particular in the form of black charred points, gets stuck, which in the long run leads to degradation and quality deterioration can lead.
  • the inclined surface ai in FIG. 18 results in a very favorable delivery pulse in the axial direction.
  • the bevel dc in FIG. 19 allows the shear in the gap to be minimized, although this is not of crucial importance for all products. At the same time, however, it leads to product movement and thus to continuous cleaning, which would not be the case with a parallel surface.
  • the transport strips 75, 79, 80 are detachable, preferably screwed, or arranged welded.
  • the height of the end face 81 can be variable by one to achieve different transport performance, the higher the bar, the better the Transport.
  • the material of these transport strips can be that of the reactor correspond or made of a particularly wear-resistant material or so be armored. The material is preferably identical to that of the rotor.
  • the Connection area 82 serves as a carrier for a releasable fastening of the transport bar 83.
  • the projection 84 is precisely defined and fixed to convey and Clean and facilitate the subsequent relief.
  • the height of the face is variable depending on the application and product properties; it is also decisive for them Transport performance.
  • the radial gap following the protrusion 84 is preferably double as large as the gap between the projection and the heating jacket. This creates one Relieve the stress on the product by lower shear while the projection promotes and cleans the heating wall.
  • the discharge system according to FIGS. 20 and 21 used to discharge the product from a twin-shaft reactor according to the invention comprises a screw housing 201, which is preferably connected at the end or bottom to a twin-shaft reactor / degasser / evaporator and is provided with two inlet openings 202, 203 and an outlet opening 204
  • a synthesis is carried out or the molecular weight is increased, with or without the formation of a by-product to be evaporated and without necessarily having to use a solvent or carrier material.
  • the reaction is carried out in a suitable solvent as a moderator, which is thermally separated off during or after completion of the reaction.
  • the system can also be used, in particular for individual processes, as a reactor and / or degasifier and / or evaporator and / or heat exchanger.
  • This discharge system is equipped with two parallel or opposing ones arranged in parallel Screws 205, 206 and a drive 207, which operate according to the principle of Twin screw extruders work in that the product taken over from the reactor Direction of conveyance 208 or 209 is conveyed to the center of the discharge system.
  • the entering product from the right entry opening is thus to the left and that product entering from the left inlet opening to the right to the centrally arranged outlet opening 204 funded.
  • the screw pushes on the one hand, the product in the discharge pump 204 and with the same direction of rotation it pulls the product from the other side into the pump 204.
  • the well-known twin screw with or without discharge pump the product in just one Direction promoted.
  • Fig. 21 are a reactor repository 210 and that Snail housing shown laterally, which is provided with channels 211 for a heating medium So-called thermal oil, pressurized water, molten salt can be used as the heating medium or electric heating with channels for cold water for temperature control be used.
  • a heating medium So-called thermal oil, pressurized water, molten salt can be used as the heating medium or electric heating with channels for cold water for temperature control be used.
  • 15 and 20 are designed such that they only have so much pressure build up as it is necessary to a downstream volumetric pump, For example, to stuff a gear pump that builds up the pressure required for one Filtration, granulation, compounding, etc. is carried out in an extremely gentle manner.
  • the reactor according to the present invention is actually a plant for the mechanical and / or thermal treatment of liquid and / or viscous and / or pasty and / or pourable and / or loose more or less solid products of Plastic, chemical and / or other industries.
  • This plant works as a reactor and / or degasser and / or evaporator and / or heat exchanger.
  • Preferably lie the waves are at least approximately horizontal.
  • the rotating elements are like this attached that its outer diameter edge is as close as possible to the Inner wall of the housing and on the shaft of the opposite stirring shaft reach up and work together.

Claims (15)

  1. Installation pour le traitement de produits, comportant deux arbres (2, 3) agencés à l'horizontale parallèlement l'un à l'autre et entraínés en dépendance l'un de l'autre, qui sont logés dans un boítier (1) constitué par deux cylindres partiels parallèles, ces arbres (2, 3) portant, sur leur périphérie, un certain nombre d'éléments rotatifs (64, 65, 66) répartis à distance axiale les uns des autres, caractérisé en ce que l'étanchement des arbres est réalisé au moyen d'une garniture étanche à anneau glissant (42) dans le boítier (41) de laquelle sont positionnés les paliers fixes des arbres (2, 3) pour augmenter la fiabilité de cette garniture étanche à anneau glissant (42).
  2. Installation selon la revendication 1, caractérisé en ce que les éléments rotatifs (64, 65) sont pourvus en périphérie d'au moins une zone inclinée.
  3. Installation selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce qu'il est prévu un palier d'extrémité qui sert simultanément d'organe d'évacuation.
  4. Installation selon l'une des revendications précédentes, caractérisé en ce qu'au moins quelques-uns des éléments rotatifs (66) sont pourvus de moyens en forme de canaux (661) pour conduire un fluide thermique.
  5. Installation selon l'une des revendications précédentes, caractérisé en ce qu'au moins quelques-uns de ces éléments rotatifs sont des disques à segments (66) et/ou des racloirs à segments (64) qui sont chanfreinés en direction axiale sur leur face frontale tournant parallèlement à la paroi du boítier.
  6. Installation selon l'une des revendications 1 à 5, caractérisé en ce qu'au moins quelques-uns de ces éléments rotatifs sont des disques à segments (66) et/ou des racloirs à segments (64) qui sont chanfreinés sur la face frontale en direction de transport (K-K).
  7. Installation selon l'une des revendications 1 à 6, caractérisé en ce qu'au moins quelques-uns de ces éléments rotatifs sont des disques à segments (66) et/ou des racloirs à segments (64) qui sont chanfreinés sur la face d'extrémité d'un côté ou des deux côtés (J-J).
  8. Installation selon l'une des revendications 1 à 7, caractérisé en ce qu'au moins quelques-uns de ces éléments rotatifs sont des disques à segments (66) et/ou des racloirs à segments (64) qui présentent des surfaces qui sont chanfreinées sur la face frontale vers la surface intérieure du corps (L-L).
  9. Installation selon l'une des revendications 1 à 8, caractérisé en ce qu'il est prévu une garniture d'étanchéité à anneau glissant (42) avec des paliers fixes intégrés pour les deux arbres.
  10. Installation selon l'une des revendications 1 à 9, caractérisé en ce que lors de l'évacuation du produit, le palier d'extrémité présente des moyens (54, 55 ; 122 ; 113) pour agir simultanément d'organe d'évacuation.
  11. Installation selon l'une des revendications 1 à 10, caractérisé en ce qu'au moins un premier arbre est pourvu de disques à segments (66) susceptibles d'être chauffés et/ou refroidis qui sont reliés, sur le diamètre extérieur de la face avant en direction de rotation, avec des baguettes à lames (69) continues dont les lames sont orientées en direction de rotation, en ce que l'autre arbre présente sur sa périphérie radiale autant de rangées constituées par deux éléments de nettoyage (64) et par des baguettes à lames courtes (65) que le premier arbre possède de plans garnis de disques à segments, et/ou en ce que les deux arbres sont munis, de manière inversée, du même nombre de disques à segments et d'éléments de nettoyage, et/ou en ce que les éléments de nettoyage (64) sont pourvus sur leur face frontale d'un tronçon de segment dont la longueur est déterminée par la largeur des disques à segments (66) et qui sont munis d'une lame circulaire de tête, et/ou en ce qu'avec leur lame circulaire de tête montée sur le tronçon de segment, les éléments de nettoyage raclent le long des disques à segments lors de l'engagement dans la région d'arbre opposée, tout d'abord à l'entrée et ensuite encore une fois à la sortie.
  12. Installation selon l'une des revendications 1 à 11, caractérisé en ce que la face arrière des éléments de nettoyage (64) est réalisée de telle sorte qu'il y a par rapport aux tubulures prévues à cet effet un espace libre pour des gaz, des fumées ou des vapeurs s'écoulant en direction longitudinale.
  13. Installation selon l'une des revendications 1 à 12, caractérisé en ce que les moyens en forme de canaux comprennent deux canaux radiaux dont les régions d'extrémité sont reliées par un autre canal, et/ou en ce que des paliers pour les deux arbres sont intégrés dans la garniture d'étanchéité à anneau glissant (42).
  14. Installation selon l'une des revendications 1 à 13, caractérisé en ce que les éléments rotatifs sont pourvus de baguettes de transport (75, 79, 80) qui présentent une surface avant (81) orientée au moins approximativement radialement.
  15. Installation selon l'une des revendications 1 à 14, caractérisé en ce qu'elle comprend un carter de vis (201) avec deux ouvertures d'entrée (202, 203) et une ouverture de sortie (204) et en ce que dans le carter de vis sont logées deux vis hélicoïdales fin (205, 206) agencées parallèlement l'une à l'autre et tournant dans le même sens ou en sens contraire pour transporter le produit repris de l'installation dans des directions de transport opposées (208, 209) vers l'ouverture de sortie (20) du système d'évacuation.
EP00123793A 1999-11-10 2000-11-02 Mélangeur et réacteur Expired - Lifetime EP1101525B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH205999 1999-11-10
CH205999 1999-11-10

Publications (2)

Publication Number Publication Date
EP1101525A1 EP1101525A1 (fr) 2001-05-23
EP1101525B1 true EP1101525B1 (fr) 2003-03-19

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EP (1) EP1101525B1 (fr)
AT (1) ATE234669T1 (fr)
DE (1) DE50001483D1 (fr)
ES (1) ES2189718T3 (fr)

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Publication number Priority date Publication date Assignee Title
DE10150900C1 (de) * 2001-10-18 2003-04-24 List Ag Mischkneter mit unterschiedlich dicken Tragelementen für Knetbarren
US7083319B2 (en) 2003-05-15 2006-08-01 Buss Sms Gmbh Verfahrenstechnic Large-volume reactor having a plurality of process spaces
ATE489152T1 (de) 2005-12-05 2010-12-15 Buss Sms Canzler Gmbh Grossvolumiger reaktor beziehungsweise dünnschichtverdampfer mit einem vormischaggregat
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ATE234669T1 (de) 2003-04-15
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EP1101525A1 (fr) 2001-05-23

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