EP1742725B1 - Method and device for pneumatic treatment of powder materials - Google Patents

Method and device for pneumatic treatment of powder materials Download PDF

Info

Publication number
EP1742725B1
EP1742725B1 EP05715997A EP05715997A EP1742725B1 EP 1742725 B1 EP1742725 B1 EP 1742725B1 EP 05715997 A EP05715997 A EP 05715997A EP 05715997 A EP05715997 A EP 05715997A EP 1742725 B1 EP1742725 B1 EP 1742725B1
Authority
EP
European Patent Office
Prior art keywords
container
vessel
material flows
interior
line
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
EP05715997A
Other languages
German (de)
French (fr)
Other versions
EP1742725A2 (en
Inventor
Frédéric Dietrich
Yves Dietrich
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.)
Dietrich Engineering Consultants SA
Original Assignee
Dietrich Engineering Consultants SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34962922&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1742725(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dietrich Engineering Consultants SA filed Critical Dietrich Engineering Consultants SA
Publication of EP1742725A2 publication Critical patent/EP1742725A2/en
Application granted granted Critical
Publication of EP1742725B1 publication Critical patent/EP1742725B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
    • F26B17/101—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers the drying enclosure having the shape of one or a plurality of shafts or ducts, e.g. with substantially straight and vertical axis
    • F26B17/104—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers the drying enclosure having the shape of one or a plurality of shafts or ducts, e.g. with substantially straight and vertical axis with fixed or moving internal bodies for defining or changing the course of the entrained material
    • 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
    • B01F23/60—Mixing solids with solids
    • 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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B01F25/104—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components characterised by the arrangement of the discharge opening
    • 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/51—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is circulated through a set of tubes, e.g. with gradual introduction of a component into the circulating 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
    • F26B17/107—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers pneumatically inducing within the drying enclosure a curved flow path, e.g. circular, spiral, helical; Cyclone or Vortex dryers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2215/00—Auxiliary or complementary information in relation with mixing
    • B01F2215/04—Technical information in relation with mixing
    • B01F2215/0413—Numerical information
    • B01F2215/0418—Geometrical information
    • B01F2215/0422—Numerical values of angles

Definitions

  • the invention relates to a method according to the preamble of claim 1 and an apparatus for the pneumatic treatment of powdery substances according to the preamble of claim 7.
  • a conveyor device for plastic granules with a hose line protrudes, which dives at one end by means of a lance in a storage silo and the other protrudes through a filter support into a pipe socket which sits on the box-like inlet of a tangential intake opening of a plasticizing.
  • a suction chamber about the filter support a likewise penetrated by the hose line cover assembly is provided with a suction chamber. The latter has suction openings directed towards the pipe socket and is in operative connection with a nozzle system to which compressed air or compressed gas can be supplied as working medium.
  • a relatively high negative pressure is generated, which propagates through the suction openings and the filter in the pipe socket and from there through the suction line into the storage silo.
  • that working medium should generate such a high pressure that the solids are sucked into that box-type inlet while being mixed with a suction air stream.
  • the solids are separated from the suction air stream, and this is mixed with the working fluid. Filter cleaning can not be performed during the process.
  • the EP 0 574 596 A describes a plant for the pneumatic handling of cement from ships in silos by means of a so-called.
  • Lock container of several container segments in the uppermost container segment sits an exhaust filter, the lowermost container segment tapers like a funnel.
  • a device for the pneumatic conveying of powdered substances of a specific gravity of 0.1 to 15.0 g / cm 3 and with a particle size range between 0.1 to 300 microns as conveyed using a filter in pipe systems is after US 6,325,572 B1 the ratio of the length of a container containing a pumping chamber for temporarily receiving the material to be conveyed to its inner diameter between 0.5 and 10.
  • the ratio of the length of a container containing a pumping chamber for temporarily receiving the material to be conveyed corresponds to the width of a provided between a vacuum pump for sucking the conveyed material and the container - as interchangeable arranged in a filter insert plate-like Filter membrane formed - filters at most of its diameter determined by that diameter.
  • a container is to be taken, at whose funnel-shaped base region two U-shaped tubes provided with a gas inlet are connected at both ends; the gas is introduced at the upper end of the base region and flows through it - as well as bulk material stored in it - towards the lower end of the pipe.
  • CH-A-670 399 discloses a method according to the preamble of claim 1 and an apparatus according to the preamble of claim 7.
  • powdery substances are conveyed and transported in a controlled atmosphere.
  • the known systems for conveying powdered materials of this type are usually tuned in the design of the subsequently to be promoted product; These systems are one-offs which require high investment costs.
  • the filling of powder in reaction vessels or reactors within explosive zones is generally carried out manually via a lock or a protective valve, since most reactors do not have the necessary space for an adequate charging system. Such an operation does not comply with the existing safety rules to prevent the risk of explosion; when the reactor is inertized, manually charging powders from the manhole results in atmospheric pressures and neutralizes the protective effect of the inert gas. In the case of manual solids entry, the inertization is abolished within a short time (O 2 concentration> 8%) and is not restored even after a prolonged operational N 2 purge.
  • two streams of material are fed to the container space through at least two feed pipes, in particular in opposite directions, and are swirled in the container space.
  • the material flows are supplied approximately tangentially, preferably also in about the same container height, so that their tracks intermesh. In this way, an intimate turbulence is generated.
  • the material flows are preferably also introduced at an inclination angle to a radial plane of the container, i. the streams are introduced inclined downwards.
  • each of the streams is taken from a common vessel and thus creates a cycle.
  • the swirling streams should be introduced from the container space in the common vessel and withdrawn together from this.
  • Another approach which can also be combined with the above method, is also to take each of the streams to a separate vessel. In the latter case, preferably different substances are mixed together.
  • connection piece As low it has proven to provide the container at least two mutually approximately parallel connection piece, which are preferably associated with a common radial plane; Conveniently, they should include an inclination angle with the radial plane towards the container axis and / or be inclined downwards towards the container interior. Also, it has proven to be favorable to let the connection piece to each other slightly offset in height in the container interior.
  • the container sits with its lower end to a collecting vessel and the other end is provided with a connection piece.
  • At least one reflection device can be arranged as an impact element, at which the particles bounce off and are pushed back into the stream.
  • the floor-mounted outlet member has at least two output members for a respective line, which is connected at the other end to one of the attachment pieces;
  • the latter is intended, according to a further feature of the invention, to connect the outlet member of the reaction vessel with an attachment neck of the container, thus enabling a circulation.
  • a branch line is connected to the line; this branch is then connected at the end to a vessel containing one of the powdery substances.
  • a device 10 for the pneumatic conveying of powdery materials of small particle size range has a collecting vessel 12 as a main container with a cylindrical vessel wall 14 of a height h and an outer diameter d.
  • the interior 15 of the collecting vessel 12 is closed at the bottom by a housing bottom 16 from which protrudes in the vessel axis A a bowl-like bottom nozzle 17.
  • the vessel interior 15 is spanned by a dome cover 18, from which - a cylindrical container 20 made of electrolytically polished stainless steel of a length a of, for example, 600 mm, projects axially relative to the vessel axis A; whose interior 22 of a diameter d 1 from here 200 mm serves as a vortex chamber.
  • This container interior 22 is of spans a plate-like sieve 24, above which from a container lid 26 a - here T-shaped - connecting piece 28 rises.
  • a vacuum line and at the other end a delivery gas line can be connected, at least the latter containing a check valve.
  • Such valves are exemplary at 29 in Fig. 3 indicated.
  • a butterfly valve 32 is integrated as a blocking member in a connecting flange 34 respectively.
  • the interior 22 of the container 20 are fed through the attachment piece 30, 30 a and the lines 40, 40 a two streams of powdery substances in the conveying direction x and y tangentially and according to Fig.2 on the inner surface of the container 20 in opposite orbits x 1 and y 1 transferred.
  • a support ring 51 of a chassis 52 hanging - collecting vessel 12 a funnel-like design, and its tip 46 merges into a T-shaped pipe connection 47, at the cross tube 48, the two lines 40, 40 a are connected.
  • the latter are defined in holding loops 53 that support ring 51.
  • an intermediate piece is integrated as a lock insert 50, to which a branch line 42 and 42 a is connected; this ends on the other hand with an insert tip 44 and 44 a of rigid material.
  • the insert tips 44 and 44 a of the branch lines 42 and 42 a are each immersed in a vessel 54, 55, which include different powders P, Q; These are fed through the lines 40/42 and 40 a / 42 a the vortexing process in the container interior 22.
  • Fig. 4 can recognize - the parallel attachment piece 30, 30 b arranged opposite to each other, so that the circular paths x 2 , y 2 of the streams x, y are rectified. The turbulence arises here by the lateral impact of the circular paths x 2 , y 2 each other.
  • the container 20 more than a pair of connecting pieces 30, 30 a offer for connection to more than two lines 40, 40 a .
  • the system consists - as described - from a main container 12, 12 a with a deflector installed in the middle 36.
  • a conveyor system with two tangential attachment piece 30, 30 a as inputs attached.
  • their butterfly valves 32 open.
  • the powders are automatically introduced with a powder delivery system and circulated through the main container 12, 12 a for a predetermined period of time.
  • a reflection device ensures a homogeneous distribution of the powder mixture in the main container 12, 12 a .
  • the mixing effect allows a significant increase in the speed and efficiency of mixing.
  • the limited circulation speed prevents damage to the particles.
  • the system can easily be operated under exclusion of oxygen. This also allows hygroscopic powders such as powders, which can oxidize or explode, to be mixed.
  • Powders may be automatically sucked from the vessels 54, 55, for example, from drums, sacks, or directly from process apparatus, granulators, or the like. After completion of the mixing process, the system can be fully automatically and completely emptied into the next processing step. This system does not include any moving or rotating mechanical parts, which allows for easy automatic cleaning.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

A device for pneumatic treatment of powder materials in a recipient chamber (22), with introduction of two material streams into the above through two inlet tubes (40, 40a), optionally in a counter-current and/or approximately tangential sense and swirled in the recipient chamber (22). The material streams are for introduction at roughly the same level in the container and the tracks thereof are interleaved. The material streams are also introduced at an inclination angle (w) to a radial plane (E) of the recipient chamber (22) which is inclined downwards.

Description

Die Erfindung betrifft ein Verfahren nach dem Oberbegriff des Patentanspruches 1 und eine Vorrichtung zum pneumatischen Behandeln pulverförmiger Stoffe nach dem Oberbegriff des Anspruchs 7.The invention relates to a method according to the preamble of claim 1 and an apparatus for the pneumatic treatment of powdery substances according to the preamble of claim 7.

Aus der EP 0 538 711 A geht eine Fördervorrichtung etwa für Kunststoffgranulate mit einer Schlauchleitung hervor, die einends mittels einer Lanze in einen Speichersilo eintaucht sowie andernends durch einen Filterträger hindurch in einen Rohrstutzen einragt, der auf dem kastenartigen Einlass einer tangentialen Einzugsöffnung eines Plastifizierzylinders sitzt. Über dem Filterträger ist eine ebenfalls von der Schlauchleitung durchsetzte Deckel-Baugruppe mit einer Saugkammer vorgesehen. Letztere weist zum Rohrstutzen gerichtete Saugöffnungen auf und steht mit einem Düsensystem in Wirkverbindung, dem Druckluft oder Druckgas als Arbeitsmedium zugeführt werden kann. In der Saugkammer wird ein relativ hoher Unterdruck erzeugt, der sich durch die Saugöffnungen und die Filter in den Rohrstutzen sowie von dort aus durch die Saugleitung bis in den Speichersilo fortpflanzt. Jenes Arbeitsmedium soll durch Erhöhung seiner Geschwindigkeit im Fördergut einen so hohen Druck erzeugen, dass die Feststoffe unter Vermischung mit einem Saugluftstrom zu jenem kastenartigen Einlass gesaugt werden. An den Filtern werden die Feststoffe vom Saugluftstrom abgetrennt, und dieser wird mit dem Arbeitsmedium gemischt. Eine Filterreinigung kann während des Prozesses nicht durchgeführt werden.From the EP 0 538 711 A For example, a conveyor device for plastic granules with a hose line protrudes, which dives at one end by means of a lance in a storage silo and the other protrudes through a filter support into a pipe socket which sits on the box-like inlet of a tangential intake opening of a plasticizing. About the filter support a likewise penetrated by the hose line cover assembly is provided with a suction chamber. The latter has suction openings directed towards the pipe socket and is in operative connection with a nozzle system to which compressed air or compressed gas can be supplied as working medium. In the suction chamber, a relatively high negative pressure is generated, which propagates through the suction openings and the filter in the pipe socket and from there through the suction line into the storage silo. By increasing its velocity in the material to be conveyed, that working medium should generate such a high pressure that the solids are sucked into that box-type inlet while being mixed with a suction air stream. At the filters, the solids are separated from the suction air stream, and this is mixed with the working fluid. Filter cleaning can not be performed during the process.

Die EP 0 574 596 A beschreibt eine Anlage für das pneumatische Umschlagen von Zement aus Schiffen in Silos mittels eines sog. Schleusenbehälters aus mehreren Behältersegmenten; im obersten Behältersegment sitzt ein Abluftfilter, das unterste Behältersegment verjüngt sich trichterartig.The EP 0 574 596 A describes a plant for the pneumatic handling of cement from ships in silos by means of a so-called. Lock container of several container segments; in the uppermost container segment sits an exhaust filter, the lowermost container segment tapers like a funnel.

Bei einer Vorrichtung zum pneumatischen Fördern pulverförmiger Stoffe eines spezifischen Gewichtes von 0,1 bis 15,0 g/cm3 sowie mit einem Korngrößenbereich zwischen 0,1 bis 300 µm als Fördergut unter Einsatz eines Filters in Rohrsystemen ist nach US 6,325,572 B1 das Verhältnis der Länge eines eine Pumpkammer enthaltenden Behälters zur zeitweiligen Aufnahme des Fördergutes zu seinem inneren Durchmesser Zwischen 0,5 und 10. Zudem entspricht die Weite eines zwischen einer Vakuumpumpe zum Ansaugen des Fördergutes und dem Behälter vorgesehenen -- als in einem Filtereinsatz auswechselbar angeordnete plattenartige Filtermembrane ausgebildeten -- Filters höchstens dessen von jenem Durchmesser bestimmten Querschnitt.In a device for the pneumatic conveying of powdered substances of a specific gravity of 0.1 to 15.0 g / cm 3 and with a particle size range between 0.1 to 300 microns as conveyed using a filter in pipe systems is after US 6,325,572 B1 the ratio of the length of a container containing a pumping chamber for temporarily receiving the material to be conveyed to its inner diameter between 0.5 and 10. In addition, corresponds to the width of a provided between a vacuum pump for sucking the conveyed material and the container - as interchangeable arranged in a filter insert plate-like Filter membrane formed - filters at most of its diameter determined by that diameter.

Der EP 1 304 304 A2 ist ein Behälter zu entnehmen, an dessen trichterförmigen Basisbereich zwei U-förmige und mit einem Gaseinlass versehene Rohre jeweils beidends angeschlossen sind; das Gas wird am oberen Ende des Basisbereiches in diesen eingelassen und durchwandert ihn -- sowie in ihm lagerndes Schüttgut -- zum unteren Rohrende hin.Of the EP 1 304 304 A2 a container is to be taken, at whose funnel-shaped base region two U-shaped tubes provided with a gas inlet are connected at both ends; the gas is introduced at the upper end of the base region and flows through it - as well as bulk material stored in it - towards the lower end of the pipe.

CH-A-670 399 offenbart ein Verfahren gemäß dem Oberbegriff des Anspruchs 1 und eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 7. CH-A-670 399 discloses a method according to the preamble of claim 1 and an apparatus according to the preamble of claim 7.

Auch in der chemisichen, pharmazeutischen und der Lebensmittelindustrie werden pulverförmige Stoffe gefördert und in einer kontrollierten Atmosphäre transportiert. Die bekannten Anlagen zum Fördern pulverförmiger Werkstoffe dieser Art sind zumeist in der Konstruktion auf das nachträglich zu fördernde Produkt abgestimmt; bei diesen Anlagen handelt es sich um Einzelanfertigungen, die hohe Anlagekosten bedringen.Also in the chemical, pharmaceutical and food industries powdery substances are conveyed and transported in a controlled atmosphere. The known systems for conveying powdered materials of this type are usually tuned in the design of the subsequently to be promoted product; These systems are one-offs which require high investment costs.

Das Einfüllen von Pulver in Reaktionsgefäße oder Reaktoren innerhalb explosiver Zonen erfolgt im allgemeinen manuell über eine Schleuse oder ein Schutzventil, da die meisten Reaktoren nicht über den nötigen Platz für eine adäquate Ladeanlage verfügen. Eine solche Arbeitsweise entspricht nicht den vorhandenen Sicherheitsregeln zur Unterbindung der Explosionsgefahr; wenn der Reaktor inertisiert ist, führt das manuelle Einfüllen von Pulvern vom Mannloch zu atmosphärischen Drücken und hebt den Schutzeffekt des Inertgases auf. Bei manuellem Feststoffeintrag ist die Inertisierung innerhalb kurzer Zeit aufgehoben (02 Konzentration > 8 %) und wird auch nach längerer betriebsmäßiger N2-Spülung nicht wieder hergestellt.The filling of powder in reaction vessels or reactors within explosive zones is generally carried out manually via a lock or a protective valve, since most reactors do not have the necessary space for an adequate charging system. Such an operation does not comply with the existing safety rules to prevent the risk of explosion; when the reactor is inertized, manually charging powders from the manhole results in atmospheric pressures and neutralizes the protective effect of the inert gas. In the case of manual solids entry, the inertization is abolished within a short time (O 2 concentration> 8%) and is not restored even after a prolonged operational N 2 purge.

In Kenntnis dieser Gegeben hat sich der Erfinder das Ziel gesetzt, ein kostengünstiges Vermischen und Konditionieren pulverförmiger Stoffe zu ermöglichen.With this knowledge in mind, the inventor has set himself the goal of enabling cost-effective mixing and conditioning of pulverulent substances.

Zur Lösung dieser Aufgabe führt die Lehre des unabhängigen Anspruches; die Unteransprüche geben günstige Weiterbildungen an. Zudem fallen in den Rahmen der Erfindung alle Kombinationen aus zumindest zwei der in der Beschreibung, der Zeichnung und/oder den Ansprüchen offenbarten Merkmale. Bei angegebenen Bemessungsbereichen sollen auch innerhalb der genannten Grenzen liegende Werte als Grenzwerte offenbart und beliebig einsetzbar sein.To achieve this object, the teaching of the independent claim; the dependent claims indicate favorable developments. In addition, all combinations of at least two of the features disclosed in the description, the drawings and / or the claims fall within the scope of the invention. at given design ranges, values within the stated limits should also be disclosed as limit values and be used as desired.

Erfindungsgemäß werden dem Behälterraum durch zumindest zwei Zuführrohre zwei Stoffströme -- insbesondere gegenläufig -- zugeführt und in dem Behälterraum verwirbelt. Dazu hat es sich als günstig erwiesen, dass die Stoffströme etwa tangential zugeführt werden, bevorzugt zudem in etwa gleicher Behälterhöhe, so dass deren Bahnen ineinandergreifen. Auf diese Weise wird eine innige Verwirbelung erzeugt.According to the invention, two streams of material are fed to the container space through at least two feed pipes, in particular in opposite directions, and are swirled in the container space. For this purpose, it has proved to be advantageous that the material flows are supplied approximately tangentially, preferably also in about the same container height, so that their tracks intermesh. In this way, an intimate turbulence is generated.

Dazu werden bevorzugt die Stoffströme auch in einem Neigungswinkel zu einer Radialebene des Behälters eingeleitet, d.h. die Stoffströme werden abwärts geneigt eingeführt.For this purpose, the material flows are preferably also introduced at an inclination angle to a radial plane of the container, i. the streams are introduced inclined downwards.

Gemäß einer der Möglichkeiten zur Durchführung des erfindungsgemäßen Verfahrens wird jeder der Stoffströme einem gemeinsamen Gefäß entnommen und so ein Kreislauf erzeugt. Hierzu sollen die verwirbelten Stoffströme aus dem Behälterraum in das gemeinsame Gefäß eingeführt sowie gemeinsam aus diesem abgezogen werden.According to one of the possibilities for carrying out the method according to the invention, each of the streams is taken from a common vessel and thus creates a cycle. For this purpose, the swirling streams should be introduced from the container space in the common vessel and withdrawn together from this.

Eine andere -- mit dem vorstehenden Verfahren auch kombinierbare -- Vorgehensweise ist es auch, jeden der Stoffströme einem gesonderten Gefäß zu entnehmen. Im letztgenannten Fall werden bevorzugt unterschiedliche Stoffe miteinander vermischt.Another approach, which can also be combined with the above method, is also to take each of the streams to a separate vessel. In the latter case, preferably different substances are mixed together.

Im Rahmen der Erfindung liegt eine Vorrichtung, die vor allem bei Durchführung vorstehender Verfahren eingesetzt werden soll, bei der zumindest zwei Zuführleitungen für jeweils einen Stoffstrom vorgesehen und diese an jeweils einen Anschlussstutzen angeschlossen sind; diese Anschlussstutzen münden nach einem Merkmal der Erfindung gleichgerichtet in den Behälterinnenraum, so dass die sie verlassenden Stoffströme aufeinandertreffen und so die Verwirbelung durchführen.In the context of the invention is a device which is to be used above all in carrying out the above method, in which at least two supply lines are provided for each a material flow and these are connected to a respective connecting piece; these connecting pieces open according to a feature of the invention rectified in the container interior, so that they meet the flow of material meet and so perform the turbulence.

Als günstig hat es sich erwiesen, am Behälter zumindest zwei zueinander etwa parallele Anschlussstutzen vorzusehen, die bevorzugt einer gemeinsamen Radialebene zugeordnet sind; günstigerweise sollen sie zur Behälterachse hin mit der Radialebene einen Neigungswinkel einschließen und/oder zum Behälterinnenraum hin abwärts geneigt sein. Auch hat es sich als günstig erwiesen, die Anschlussstutzen zueinander etwas höhenversetzt in den Behälterinnenraum münden zu lassen.As low it has proven to provide the container at least two mutually approximately parallel connection piece, which are preferably associated with a common radial plane; Conveniently, they should include an inclination angle with the radial plane towards the container axis and / or be inclined downwards towards the container interior. Also, it has proven to be favorable to let the connection piece to each other slightly offset in height in the container interior.

Bevorzugt sitzt der Behälter mit seinem unteren Ende einem Auffanggefäß auf und ist andernends mit einem Anschlussstutzen versehen.Preferably, the container sits with its lower end to a collecting vessel and the other end is provided with a connection piece.

Es wird bevorzugt, den Gefäßinnenraum des Auffanggefäßes firstwärts an zumindest einen Bodendurchbruch des Behälters anzufügen sowie mit einem bodenwärtigen Auslassorgan zu versehen. Auch kann im Gefäßinnenraum im Strömungsweg wenigstens eine Reflektionseinrichtung als Prallorgan angeordnet sein, an der die Partikel abprallen und in den Strom zurückgedrückt werden.It is preferred to attach the vessel interior of the collecting vessel firstly to at least one bottom opening of the container and to provide it with a bottom outlet body. Also, in the interior of the vessel in the flow path at least one reflection device can be arranged as an impact element, at which the particles bounce off and are pushed back into the stream.

Erfindungsgemäß weist das bodenwärtige Auslassorgan zumindest zwei Ausgangsorgane für jeweils eine -- andernends an einem der Ansatzstutzen angeschlossene -- Leitung auf; letztere soll nach einem weiteren Merkmal der Erfindung das Auslassorgan des Reaktionsgefäßes mit einem Ansatzstutzen des Behälters verbinden, also einen Kreislauf ermöglichen. In einer weiteren Ausgestaltung ist an die Leitung eine Zweigleitung angeschlossen; diese Zweigleitung wird dann andernends mit einem Gefäß verbunden, das einen der pulverförmigen Stoffe enthält.According to the invention, the floor-mounted outlet member has at least two output members for a respective line, which is connected at the other end to one of the attachment pieces; The latter is intended, according to a further feature of the invention, to connect the outlet member of the reaction vessel with an attachment neck of the container, thus enabling a circulation. In a further embodiment, a branch line is connected to the line; this branch is then connected at the end to a vessel containing one of the powdery substances.

Als günstig hat es sich erwiesen, das untere Hohlprofil an einer Bodenkammer enden zu lassen, die durch eine Förderleitung mit dem oberen Hohlprofil verbunden ist, um eine Zirkulation zu ermöglichen.It has proved to be favorable to let the lower hollow section end at a bottom chamber, which is connected by a delivery line with the upper hollow section to allow circulation.

Mit der Erfindung wird die vom Erfinder gesehene Aufgabe in bestechender Weise gelöst; das erfindungsgemäße System bietet an:

  • ein geschlossenes, selbstfüllendes Mischsystem mit hohem Grad an Containment;
  • ein sehr effizientes Mischen, d.h. deutlich geringere Mischzeiten im Vergleich zu herkömmlichen Systemen;
  • die Möglichkeit, unterschiedliche Pulver in sehr verschiedenen Verhältnissen zu mischen (1/10.000) ;
  • das Arbeiten unter Ausschluss von Sauerstoffatmosphäre mit geringem Verbrauch an Stickstoff;
  • ein vollständiges Entleeren des Systems mit der Möglichkeit, an Ort und Stelle zu reinigen;
  • das direkte Hinzufügen kleinerer Produktmengen zur Mischung ohne Prozessunterbrechung;
  • die Möglichkeit, Pulvereigenschaften werden während des Mischvorgangs verändert zu lassen;
  • die Konzeption fester Anlagen, mit denen aus verschiedenen Behältern (Fässer, Big-Bags, Silos etc.) Pulver angesaugt werden können;
  • das Ansaugen von Pulver über beträchtliche Distanzen;
  • den Einsatz äußerst betriebssicherer und nur weniger beweglicher Teile bei geringer Wartung.
With the invention, the object seen by the inventor is achieved in an impressive manner; the system according to the invention offers:
  • a closed, self-filling mixing system with a high degree of containment;
  • a very efficient mixing, ie significantly shorter mixing times compared to conventional systems;
  • the possibility of mixing different powders in very different proportions (1 / 10,000);
  • working under exclusion of oxygen atmosphere with low consumption of nitrogen;
  • complete emptying of the system with the ability to clean in place;
  • the direct addition of smaller quantities of product to the mixture without interrupting the process;
  • the ability to allow powder properties to be changed during the mixing process;
  • the conception of solid plants with which powders can be sucked in from different containers (barrels, big-bags, silos etc.);
  • the suction of powder over considerable distances;
  • the use of extremely reliable and less moving parts with low maintenance.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt in:

Fig. 1:
eine erfindungsgemäße Vorrichtung in teilweise geschnittener Seitenansicht;
Fig. 2:
den vergrößerten Querschnitt durch Fig. 1 nach deren Linie II-II;
Fig. 3:
eine weitere Ausführungsform in teil- weise geschnittener Schrägsicht;
Fig. 4:
einen der Lage der Linie II-II in Fig. 1 entsprechenden vergrößerten Quer- schnitt durch Fig. 3;
Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing; this shows in:
Fig. 1:
a device according to the invention in a partially sectioned side view;
Fig. 2:
the enlarged cross section through Fig. 1 according to their line II-II;
3:
a further embodiment in partially cut oblique view;
4:
one of the location of the line II-II in Fig. 1 corresponding enlarged cross-section through Fig. 3 ;

Eine Vorrichtung 10 zum pneumatischen Fördern von pulverförmigen Stoffen geringen Korngrößenbereiches weist ein Auffanggefäß 12 als Hauptbehälter mit einer zylindrischen Gefäßwandung 14 einer Höhe h und eines äußeren Durchmessers d auf. Der Innenraum 15 des Auffanggefäßes 12 ist nach unten hin von einem Gehäuseboden 16 verschlossen, von dem in der Gefäßachse A ein schüsselartiger Bodenstutzen 17 abragt.A device 10 for the pneumatic conveying of powdery materials of small particle size range has a collecting vessel 12 as a main container with a cylindrical vessel wall 14 of a height h and an outer diameter d. The interior 15 of the collecting vessel 12 is closed at the bottom by a housing bottom 16 from which protrudes in the vessel axis A a bowl-like bottom nozzle 17.

Der Gefäßinnenraum 15 wird von einem Domdeckel 18 überspannt, von dem -- axial zur Gefäßachse A -- ein zylindrischer Behälter 20 aus elektrolytisch poliertem Edelstahl einer Länge a von beispielsweise 600 mm aufragt; dessen Innenraum 22 eines Durchmessers d1 von hier 200 mm dient als Wirbelkammer. Dieser Behälterinnenraum 22 wird von einem plattenartigen Sieb 24 überspannt, oberhalb dessen von einem Behälterdeckel 26 ein -- hier T-förmiger -- Anschlussstutzen 28 aufragt. An diesen sind einends eine Vakuumleitung und andernends eine Fördergasleitung anschließbar, wobei zumindest letztere ein Sperrventil enthält. Solche Ventile sind beispielhaft bei 29 in Fig. 3 angedeutet.The vessel interior 15 is spanned by a dome cover 18, from which - a cylindrical container 20 made of electrolytically polished stainless steel of a length a of, for example, 600 mm, projects axially relative to the vessel axis A; whose interior 22 of a diameter d 1 from here 200 mm serves as a vortex chamber. This container interior 22 is of spans a plate-like sieve 24, above which from a container lid 26 a - here T-shaped - connecting piece 28 rises. At this one end, a vacuum line and at the other end a delivery gas line can be connected, at least the latter containing a check valve. Such valves are exemplary at 29 in Fig. 3 indicated.

In den Behälterinnenraum 22 führen zwei seitliche Ansatzstutzen 30, 30a, welche -- gemäß Fig. 2 parallel zueinander beidends einer gemeinsamen Diametralen -- in einem Winkel w von hier etwa 15° zu einer Radialebene E -- zur Gefäßachse A hin abwärts -- geneigt verlaufen. In diese Ansatzstutzen 30, 30a ist jeweils ein Schmetterlingsventil 32 als Sperrorgan in einem Anschlussflansch 34 integriert.In the container interior 22 lead two lateral attachment piece 30, 30 a , which - according to Fig. 2 parallel to each other at both ends of a common diametrical - at an angle w from here about 15 ° to a radial plane E - to the vessel axis A downwards - inclined. In this attachment piece 30, 30 a , a butterfly valve 32 is integrated as a blocking member in a connecting flange 34 respectively.

Von jedem der Zuführrohre oder Ansatzstutzen 30, 30a führt eine schlauchartige Leitung 40 bzw. 40a zu jeweils einem Radialrohr 38 jenes schüsselartigen Bodenstutzens 17. Im übrigen ist der besseren Übersicht halber die in Fig. 1, 3 rechts liegende Leitung 40a nur abschnittsweise dargestellt.From each of the feed pipes or attachment piece 30, 30 a leads a hose-like line 40 and 40 a to each of a radial tube 38 of that bowl-like bottom nozzle 17. Moreover, the sake of clarity, the in Fig. 1 . 3 right lying line 40 a only partially shown.

Dem Innenraum 22 des Behälters 20 werden durch die Ansatzstutzen 30, 30a sowie die Leitungen 40, 40a zwei Ströme pulverförmiger Stoffe in Förderrichtung x bzw. y tangential zugeleitet und gemäß Fig.2 an der Innenfläche des Behälters 20 in gegenläufige Kreisbahnen x1 bzw. y1 überführt. So entsteht eine Verwirbelung der Stoffe und deren innige Vermischung. Dieses Gemisch gelangt dank eines zentrischenverschließbar gestalteten -- Bodendurchbruches 23 in den Gefäßinnenraum 15.The interior 22 of the container 20 are fed through the attachment piece 30, 30 a and the lines 40, 40 a two streams of powdery substances in the conveying direction x and y tangentially and according to Fig.2 on the inner surface of the container 20 in opposite orbits x 1 and y 1 transferred. This creates a turbulence of the substances and their intimate mixing. Thanks to a centrically sealable bottom perforation 23, this mixture passes into the interior of the vessel 15.

Beim Ausführungsbeispiel 10a nach Fig. 3 ist das -- in einem Tragring 51 eines Fahrgestells 52 hängende -- Auffanggefäß 12a trichterartig gestaltet, und seine Spitze 46 geht in einen T-förmigen Rohranschluss 47 über, an dessen Querrohr 48 die beiden Leitungen 40, 40a angeschlossen sind. Letztere werden in Halteschlaufen 53 jenes Tragringes 51 festgelegt. In jede der Leitungen 40, 40a ist hier jeweils ein Zwischenstück als Schleuseneinsatz 50 integriert, an den eine Zweigleitung 42 bzw. 42a angeschlossen ist; diese endet anderseits mit einer Einsatzspitze 44 bzw. 44a aus starrem Werkstoff.In the embodiment 10 a after Fig. 3 is the - in a support ring 51 of a chassis 52 hanging - collecting vessel 12 a funnel-like design, and its tip 46 merges into a T-shaped pipe connection 47, at the cross tube 48, the two lines 40, 40 a are connected. The latter are defined in holding loops 53 that support ring 51. In each of the lines 40, 40 a here an intermediate piece is integrated as a lock insert 50, to which a branch line 42 and 42 a is connected; this ends on the other hand with an insert tip 44 and 44 a of rigid material.

Die Einsatzspitzen 44 bzw. 44a der Zweigleitungen 42 bzw. 42a sind jeweils in ein Gefäß 54, 55 eingetaucht, welche unterschiedliche Pulver P, Q beinhalten; diese werden durch die Leitungen 40/42 bzw. 40a/42a dem Wirbelvorgang im Behälterinnenraum 22 zugeführt. Bei dieser Ausgestaltung sind -- wie vor allem Fig. 4 erkennen lässt -- die parallelen Ansatzstutzen 30, 30b gegenläufig angeordnet, so dass die Kreisbahnen x2, y2 der Stoffströme x, y gleichgerichtet sind. Die Verwirbelung entsteht hier durch das seitliche Auftreffen der Kreisbahnen x2, y2 aufeinander.The insert tips 44 and 44 a of the branch lines 42 and 42 a are each immersed in a vessel 54, 55, which include different powders P, Q; These are fed through the lines 40/42 and 40 a / 42 a the vortexing process in the container interior 22. In this embodiment are - as above all Fig. 4 can recognize - the parallel attachment piece 30, 30 b arranged opposite to each other, so that the circular paths x 2 , y 2 of the streams x, y are rectified. The turbulence arises here by the lateral impact of the circular paths x 2 , y 2 each other.

Durch einen Umschaltvorgang in jenen Zwischenstücken 50 der Leitungen 40, 40a werden letztere zeitweilig von ihren Zweigleitungen 42, 42a getrennt, und es entsteht ein Kreislauf zwischen dem Gefäßinnenraum 15 und dem Innenraum 22 des Behälters 20 zur weitergehenden Verwirbelung.By a switching operation in those spacers 50 of the lines 40, 40 a , the latter are temporarily separated from their branch lines 42, 42 a , and there is a circulation between the vessel interior 15 and the interior 22 of the container 20 for further swirling.

Nicht dargestellt sind andere mögliche Ausgestaltungen, deren Behälter 20 mehr als ein Paar von Ansatzstutzen 30, 30a anbieten zum Anschluss an mehr als zwei Leitungen 40, 40a.Not shown are other possible embodiments, the container 20 more than a pair of connecting pieces 30, 30 a offer for connection to more than two lines 40, 40 a .

Mit den beschriebenen Vorrichtungen 10, 10a können in völlig geschlossener Weise ganz unterschiedliche Pulver mühelos gemischt werden. Im Pharmabereich eignet sich diese Technologie besonders für die kontaminationsfreie Handhabung aktiver Substanzen, deren Eigenschaften nicht verändert werden dürfen.With the described devices 10, 10 a completely different powder can be easily mixed in a completely closed manner. In the pharmaceutical sector, this technology is particularly suitable for contamination-free handling active substances whose properties must not be changed.

Das System besteht -- wie geschildert -- aus einem Hauptbehälter 12, 12a mit einem in dessen Mitte installierten Deflektor 36. Über dem Hauptbehälter 12, 12a ist ein Fördersystem mit zwei tangentialen Ansatzstutzen 30, 30a als Eingänge angebracht. Während einer Ansaugphase öffnen sich deren Schmetterlingsventile 32.The system consists - as described - from a main container 12, 12 a with a deflector installed in the middle 36. About the main container 12, 12 a is a conveyor system with two tangential attachment piece 30, 30 a as inputs attached. During a suction phase, their butterfly valves 32 open.

Die Pulver werden mit einem Pulverfördersystem automatisch eingeführt und während einer zuvor genau bestimmten Zeitdauer zirkulierend durch den Hauptbehälter 12, 12a geführt. Eine Reflektionseinrichtung gewährleistet dabei eine homogene Verteilung der Pulvermischung im Hauptbehälter 12, 12a.The powders are automatically introduced with a powder delivery system and circulated through the main container 12, 12 a for a predetermined period of time. A reflection device ensures a homogeneous distribution of the powder mixture in the main container 12, 12 a .

Wenn sich die beiden Pulverstrahlen treffen, ermöglicht der Mischeffekt eine erhebliche Steigerung der Geschwindigkeit und Effizienz des Mischens. Durch die beschränkte Zirkulationsgeschwindigkeit wird die Beschädigung der Partikel verhindert.When the two powder jets meet, the mixing effect allows a significant increase in the speed and efficiency of mixing. The limited circulation speed prevents damage to the particles.

Das System kann problemlos unter Sauerstoffausschluss betrieben werden. Dadurch vermögen auch hygroskopische Pulver wie Pulver, welche oxydieren oder explodieren können, gemischt zu werden.The system can easily be operated under exclusion of oxygen. This also allows hygroscopic powders such as powders, which can oxidize or explode, to be mixed.

Diese Technologie lässt sich leicht in eine pharmazeutische Produktionslinie integrieren. Pulver können automatisch aus den Gefäßen 54, 55 -- beispielsweise aus Fässern, Säckenoder direkt aus Prozessapparaten Granulatoren od.dgl.angesaugt werden. Nach Beendigung des Mischvorgangs kann das System vollautomatisch und vollständig in den nächsten Verarbeitungsschritt entleert werden. Dieses System beinhaltet keine beweglichen oder rotierenden mechanischen Teile, was eine leichte automatische Reinigung ermöglicht.This technology is easily integrated into a pharmaceutical production line. Powders may be automatically sucked from the vessels 54, 55, for example, from drums, sacks, or directly from process apparatus, granulators, or the like. After completion of the mixing process, the system can be fully automatically and completely emptied into the next processing step. This system does not include any moving or rotating mechanical parts, which allows for easy automatic cleaning.

Claims (20)

  1. Method for pneumatic treatment of powder materials (P, Q) in a container chamber (22) of a container (20) connected to both a supply line (40, 40a) and a material discharge, two material flows (x, y; P, Q) being supplied to the container chamber (22) by at least two supply tubes (40, 40a) connected to the container (22) and being swirled in the container chamber (22), and the swirled material flows (x1, y1) being introduced from the container chamber (22) into a common vessel (12, 12a) comprising a vessel interior (15), and the swirled material flows (x1, y1) being conveyed in a circuit between the container chamber (22) and the vessel interior (15),
    characterised in that
    the material flows (x, y; P, Q) are supplied to the container (20), which is connected to a vacuum line, from separate vessels (54, 55).
  2. Method according to claim 1, characterised in that the two powder material flows are supplied in opposite directions.
  3. Method according to either claim 1 or claim 2, characterised in that the material flows (x, y) are supplied approximately tangentially.
  4. Method according to any one of claims 1 to 3, characterised in that the material flows (x, y) are supplied at approximately the same container height and the paths thereof interweave (Fig. 4).
  5. Method according to any one of claims 1 to 4, characterised in that the material flows (x, y) are introduced at an angle of inclination (w) to a radial plane (E) of the container (22).
  6. Method according to claim 1, characterised in that the swirled material flows (x1, y1) are removed from the common vessel (12, 12a) together.
  7. Device for pneumatic treatment of powder materials (P, Q), comprising a container (20) connected to both a supply line (40, 40a) and a discharge (23) for the material to be conveyed, for carrying out the method according to any one of the preceding claims, at least two supply lines (40, 40a) being provided for a respective material flow and being connected to a respective connecting piece (30, 30a, 30b) of a container (20), and the container (20) resting with its lower end on a collecting vessel (12, 12a) comprising a vessel interior (15), and the vessel interior (15) being provided with a downwardly directed outflow member (17), and the downwardly directed outflow member (17) comprising at least two outlet members (38) for a respective line (40, 40a) connected at the other end thereof to one of the connecting pieces (30, 30a), characterised in that the material flows are supplied to the container (20) from separate vessels (54, 55) and in that a vacuum line is connected to the container (20).
  8. Device according to claim 7, characterised in that the connecting pieces (30, 30a) open into the container interior (22) in the same direction (Fig. 2).
  9. Device according to claim 7, characterised in that the connecting pieces (30, 30b) open into the container interior (22) in opposite directions (Fig. 4).
  10. Device according to either claim 8 or claim 9, characterised in that the connecting pieces (30, 30a and 30, 30b) are arranged at the two ends of a common diametrical line (D).
  11. Device according to any one of claims 7 to 10, characterised in that at least two connecting pieces (30, 30a, 30b) which are approximately parallel to one another are provided on the container (20) and are preferably assigned to a common radial plane (E).
  12. Device according to claim 11, characterised in that the connecting pieces (30, 30a, 30b) and the radial plane (E) together form an angle of inclination (w) towards the container axis (A).
  13. Device according to claim 12, characterised by an angle of inclination (w) of approximately 10° to 45°, preferably approximately 15°.
  14. Device according to either claim 12 or claim 13, characterised by connecting pieces (30, 30a, 30b) inclined downward towards the container interior (22).
  15. Device according to any one of claims 7 to 14, characterised in that the connecting pieces (30, 30a, 30b) open into the container interior (22) somewhat offset in height with respect to one another.
  16. Device according to any one of claims 7 to 15, characterised in that the container (20) is provided with a connecting piece (28) for flow means at the end thereof remote from the collecting vessel (12, 12a).
  17. Device according to claim 16, characterised in that the vessel interior (15) of the collecting vessel (12, 12a) is connected in the upward direction to at least one base aperture (23) in the container (20).
  18. Device according to any one of claims 7 to 17, characterised in that the line (40, 40a) connects the outflow member (17) of the collecting vessel (12, 12a) to an attachment piece (30, 30a, 30b).
  19. Device according to any one of claims 7 to 18, characterised in that a branch line (42, 42a) is connected to the line (40, 40a).
  20. Device according to claim 19, characterised in that the other end of the branch line (42, 42a) is connected to a vessel (54, 55) which contains one of the powder materials (P, Q) (Fig. 3).
EP05715997A 2004-03-15 2005-03-11 Method and device for pneumatic treatment of powder materials Active EP1742725B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004012772 2004-03-15
DE102004021612A DE102004021612A1 (en) 2004-03-15 2004-05-03 Method and device for the pneumatic treatment of powdery substances
PCT/EP2005/002643 WO2005092485A2 (en) 2004-03-15 2005-03-11 Method and device for pneumatic treatment of powder materials

Publications (2)

Publication Number Publication Date
EP1742725A2 EP1742725A2 (en) 2007-01-17
EP1742725B1 true EP1742725B1 (en) 2011-01-19

Family

ID=34962922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05715997A Active EP1742725B1 (en) 2004-03-15 2005-03-11 Method and device for pneumatic treatment of powder materials

Country Status (6)

Country Link
US (1) US8834011B2 (en)
EP (1) EP1742725B1 (en)
CN (1) CN101421028B (en)
AT (1) ATE495815T1 (en)
DE (2) DE102004021612A1 (en)
WO (1) WO2005092485A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004021612A1 (en) * 2004-03-15 2005-10-06 Dietrich Engineering Consultants S.A. Method and device for the pneumatic treatment of powdery substances
US7794135B2 (en) 2004-11-05 2010-09-14 Schlumberger Technology Corporation Dry polymer hydration apparatus and methods of use
US20100271902A1 (en) * 2006-03-16 2010-10-28 Murphy Braden Apparatus and method for premixing lost circulation material
US20080062812A1 (en) * 2006-03-16 2008-03-13 Murphy Braden Apparatus and method for premixing lost circulation material
CN101628666B (en) * 2009-08-12 2012-09-05 天津市实达电力设备有限公司 Dense phase pneumatic conveying system of high-efficiency energy-saving heavy material
CN102205213A (en) * 2011-05-26 2011-10-05 哈尔滨纳诺医药化工设备有限公司 Material mixing machine
CN203183362U (en) * 2012-11-29 2013-09-11 杨旭梅 Solid grain sterilizing equipment
CN105363361A (en) * 2014-08-29 2016-03-02 北京长峰金鼎科技有限公司 Circulating mixing machine
US10188993B1 (en) * 2018-07-17 2019-01-29 Herbert D. Knudsen Blender
JP6541863B1 (en) * 2018-11-29 2019-07-10 株式会社ソディック Food material powder feeder

Family Cites Families (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US981098A (en) * 1910-08-10 1911-01-10 Jasper A Mccaskell Agitator.
US1601727A (en) * 1921-01-15 1926-10-05 Gulf Refining Co Process and apparatus for cracking hydrocarbon oils
US1471690A (en) * 1922-04-17 1923-10-23 Grant C Fish Paint-spraying apparatus
US1580476A (en) * 1923-07-28 1926-04-13 Fassio Julius Washing apparatus
GB225351A (en) * 1923-11-01 1924-12-04 Walter Sangwin Improvements in or relating to apparatus for drying and heating stone, slag, and other materials
US1576911A (en) * 1925-02-24 1926-03-16 Aaron L Fischer Chemical feeder
US1736065A (en) * 1926-08-05 1929-11-19 Pont Ammonia Corp Du Process of producing hydrogen
US1839456A (en) * 1927-05-23 1932-01-05 Int Precipitation Co Art of mixing finely divided solid materials
US1802475A (en) * 1928-04-13 1931-04-28 Fuller Lehigh Co Gas producer and steam boiler
US1913470A (en) * 1929-02-25 1933-06-13 Weltha Process Corp Dehydrating process and apparatus
US1867739A (en) * 1929-09-25 1932-07-19 Iowa Mfg Company Apparatus for mixing material for making roads
US1984315A (en) * 1931-10-17 1934-12-11 Theodore H Morris Aggregate treating apparatus
US1961548A (en) * 1932-11-28 1934-06-05 Caise Charles Washing machine
US2025404A (en) * 1933-06-27 1935-12-24 Stahn Albert Sand core forming apparatus
US2125913A (en) * 1936-03-04 1938-08-09 Goebels Paul Method and apparatus for mixing finely divided material
US2277361A (en) * 1938-09-15 1942-03-24 Extractol Process Ltd Method and apparatus for directsteam treatment of extracted solid materials
US2193005A (en) * 1939-06-23 1940-03-12 Ish-Shalom Samu-El Apparatus for mixing materials
US2305938A (en) * 1940-05-10 1942-12-22 Universal Crusher Company Material mixing and handling plant
US2331208A (en) * 1940-07-27 1943-10-05 Standard Oil Dev Co Powdered material level indicator
GB543593A (en) * 1940-09-02 1942-03-04 George Bryce Improvements in or relating to the transport of aqueous emulsions of liquid explosives
US2421345A (en) * 1944-11-04 1947-05-27 Kenneth E Mcconnaughay Mixer
US2548332A (en) * 1945-04-14 1951-04-10 Phillips Petroleum Co Agglomerating apparatus
US2435884A (en) * 1945-12-18 1948-02-10 Kermit B Niles Homogenizing unit
US2529530A (en) * 1946-07-01 1950-11-14 Livestock Sprayer Mfg Co Livestock sprayer
US2544616A (en) * 1946-08-09 1951-03-06 Colgate Palmolive Peet Co Cooling of spray-dried soap products
US2586818A (en) * 1947-08-21 1952-02-26 Harms Viggo Progressive classifying or treating solids in a fluidized bed thereof
US2528514A (en) * 1947-12-20 1950-11-07 Tennessee Valley Authority Method for the manufacture of superphosphate
US2564745A (en) * 1948-07-02 1951-08-21 Adolph M Wintermyer Soil dispersing apparatus
US2714043A (en) * 1949-11-05 1955-07-26 Crane Co Conveyor apparatus
US2751425A (en) * 1951-02-01 1956-06-19 Exxon Research Engineering Co Method and apparatus for mixing and contacting fluids
US2687213A (en) * 1952-01-07 1954-08-24 Norman A Macleod Froth flotation process and apparatus
NL186923C (en) * 1953-04-21 Saarbergwerke Ag METHOD AND INSTALLATION FOR GENERATING ENERGY WITH A COMBINED GAS STEAM PLANT.
DE975272C (en) * 1955-05-01 1961-10-26 Benno Schilde Maschb Ag Method, application of the same and device for its implementation for treating such as drying, cooling, moistening or the like of suspended goods
US3035739A (en) * 1958-04-28 1962-05-22 Berg Paul Oliver Feed mill
US3097828A (en) * 1958-04-30 1963-07-16 Grun Gustav Method and apparatus for mixing pulverulent or fine-grain material
US3047275A (en) * 1959-04-29 1962-07-31 Cox Ronald Leslie Mixing of granular and/or powdery solid materials
US3106385A (en) * 1960-04-26 1963-10-08 Du Pont Method and apparatus for solids blending
US3290790A (en) 1963-04-02 1966-12-13 Mizusawa Industrial Chem Method of drying a hydrogel
FR1378555A (en) * 1963-12-24 1964-11-13 Kloeckner Humboldt Deutz Ag Mixer or heat exchanger for gaseous, liquid or fine-grained solids
US3306587A (en) * 1964-07-01 1967-02-28 Combustion Eng Apparatus for mixing fluids
US3391908A (en) * 1966-03-28 1968-07-09 Exxon Research Engineering Co Variable flow opposed jet mixer
US3448965A (en) * 1967-03-10 1969-06-10 Henry T Young Apparatus for blending particulate solids
US3425669A (en) * 1967-11-13 1969-02-04 Preston G Gaddis Dry chemical feeder method and apparatus
US3568733A (en) * 1968-07-16 1971-03-09 Black Products Co Method and apparatus for filling bags
US3627555A (en) * 1968-09-10 1971-12-14 Columbian Carbon Feeding of powders
US3846079A (en) * 1970-05-19 1974-11-05 Inst Francais Du Petrole Vertical reaction vessel for effecting reaction of liquid and gaseous reactants by liquid-gas contact
US3713564A (en) * 1971-06-25 1973-01-30 Butler Manufacturing Co Method and means for facilitating the flow of granular materials
US3832201A (en) * 1971-07-30 1974-08-27 Pavements Systems Inc Process for making asphalt paving compositions
US3840215A (en) * 1973-01-12 1974-10-08 Connaughay K Mc Drier-mixing apparatus
US3866888A (en) * 1973-01-26 1975-02-18 Baldwin Thomas I Apparatus for making hot asphalt paving material
US3879021A (en) * 1973-03-29 1975-04-22 Francis Gerald Riley Gravity flow wetting and mixing device and mixing extension therefor
US3999750A (en) * 1975-12-08 1976-12-28 Perkins Willis E Artificial snowfall producing apparatus
US4002325A (en) * 1976-03-22 1977-01-11 Herfeld Friedrich W Apparatus for mixing powdery or granulated materials
FR2369525A1 (en) * 1976-11-02 1978-05-26 Lacombe Jacques Multistage drier, esp. for cereals - operates under vacuum with state-to-stage pressure gradation, each being heated by vapour from following stage
FR2374073A1 (en) * 1976-12-18 1978-07-13 Peters Ag Claudius MIXING CHAMBER SILO FOR BULK MATERIALS
US4136964A (en) * 1977-04-14 1979-01-30 Cmi Corporation Apparatus for simultaneously mixing and conveying particulate material
US4187029A (en) * 1978-08-08 1980-02-05 Canale Albert S Apparatus and method for preparing lithographic fountain solution
JPS5588834A (en) 1978-12-28 1980-07-04 Matsushita Electric Works Ltd Powder mixing method
JPS56102930A (en) * 1980-01-23 1981-08-17 Hitachi Ltd Mixing method of condensible gas
US4480925A (en) * 1980-11-10 1984-11-06 Dietrich David E Method of mixing fluids
US4398827A (en) * 1980-11-10 1983-08-16 Dietrich David E Swirl mixing device
US4430003A (en) * 1980-11-18 1984-02-07 Hawker Siddeley Canada, Inc. Apparatus for spraying liquids such as resins and waxes on surfaces of particles
US4496076A (en) * 1982-04-16 1985-01-29 Global Manufacturing Co. Inc. Multiple blast aerator system
US4491414A (en) * 1982-06-22 1985-01-01 Petroleum Instrumentation & Technological Services Fluid mixing system
DE3224196A1 (en) * 1982-06-29 1983-12-29 Krupp Polysius Ag, 4720 Beckum METHOD FOR MIXING FINE PRODUCTS
US4498819A (en) * 1982-11-08 1985-02-12 Conoco Inc. Multipoint slurry injection junction
DE8431240U1 (en) * 1984-10-24 1986-02-20 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Dryer for free-flowing dry goods such as wood chips, fibers, grains or the like.
NL8501672A (en) * 1985-06-10 1987-01-02 Aarding Weerstandlas Bv Heat-treating particles to harden them in continuous flow - by uniformly passing through tubes with closed walls and extending through chamber with inlet and outlet for steam or hot gas
US4643582A (en) * 1985-10-08 1987-02-17 Acrison, Inc. Wetting chamber
US4957434A (en) * 1985-12-20 1990-09-18 Cyclean Method and apparatus for treating asphaltic concrete paving materials
US4647212A (en) * 1986-03-11 1987-03-03 Act Laboratories, Inc. Continuous, static mixing apparatus
CH670399A5 (en) 1987-05-07 1989-06-15 Frederic Dietrich Powder mixer with conical container - in circuit for powder entrained in pulsed air
US4812045A (en) * 1987-08-20 1989-03-14 Domtar Gypsum Inc. Gypsum dissolution system
US4934569A (en) * 1988-12-19 1990-06-19 Westinghouse Electric Corp. Pressurized fluid injection method and means
US4863277A (en) * 1988-12-22 1989-09-05 Vigoro Industries, Inc. Automated batch blending system for liquid fertilizer
US5050995A (en) * 1989-11-03 1991-09-24 High Pressure Technology Corp. Jet agitation system
US4955723A (en) * 1990-01-16 1990-09-11 Schneider John R Slurry mixing apparatus with dry powder conveyer
US5073030A (en) * 1990-01-25 1991-12-17 Banks Edgar N Drum apparatus for mixing asphalt compositions
US5009508A (en) * 1990-03-26 1991-04-23 Wojdylo Henry K Apparatus for mixing concrete
US5090813A (en) * 1990-07-23 1992-02-25 Cedarapids, Inc. Dual drum recycle asphalt drying and mixing method and apparatus
US5334012A (en) * 1990-12-27 1994-08-02 Astec Industries, Inc. Combustion chamber having reduced NOx emissions
DE4134824A1 (en) 1991-10-22 1993-04-29 Battenfeld Kunststoffmasch DEVICE FOR CONVEYING GRAINY AND / OR POWDERY SOLIDS
EP0574596A1 (en) 1992-06-13 1993-12-22 Ibau Hamburg Ingenieurgesellschaft Industriebau Mbh Device utilising gas suction and pressure for transporting dustlike goods, especially cement
US5253937A (en) * 1992-06-29 1993-10-19 Nalco Chemical Company Method and apparatus for dispersing or dissolving particles of a pelletized material in a liquid
US5518700A (en) * 1994-06-25 1996-05-21 Shell Oil Company Cyclonic reactor
US5603566A (en) * 1995-11-21 1997-02-18 Abb Flexible Automation Inc. Powder hopper with internal air assist
US6071005A (en) * 1996-06-11 2000-06-06 Merck & Co., Inc. Disposable storage, transport and resuspension system
US6325572B1 (en) * 1996-10-22 2001-12-04 Frederic Dietrich Process and device for pneumatically conveying powdery substances and their use
US6357906B1 (en) * 1999-06-08 2002-03-19 Michael P. Baudoin Method and device for mixing a bulk material with a fluid
US7018435B1 (en) * 1999-09-06 2006-03-28 Shell Oil Company Mixing device
DE10023694C2 (en) 2000-05-16 2002-04-04 Ystral Gmbh Maschb & Processte Devices for mixing fabrics
US20020105855A1 (en) * 2001-01-24 2002-08-08 Richard Behnke Storage/treatment tank mixing system
EP1304304B1 (en) 2001-10-05 2009-07-22 Vervant Limited Material transfer device, in particular for use with blenders
US20030170156A1 (en) * 2002-03-07 2003-09-11 Mionix Corp. Apparatus for mixing acid and base
EP1604730A4 (en) * 2003-02-28 2011-10-19 Okutama Kogyo Co Ltd Mixing device and slurrying device
DE10308722A1 (en) * 2003-02-28 2004-09-09 Degussa Ag Homogenization of nanoscale powders
DE102004021612A1 (en) * 2004-03-15 2005-10-06 Dietrich Engineering Consultants S.A. Method and device for the pneumatic treatment of powdery substances
US7794135B2 (en) * 2004-11-05 2010-09-14 Schlumberger Technology Corporation Dry polymer hydration apparatus and methods of use
US7731411B2 (en) * 2005-04-04 2010-06-08 Schlumberger Technology Corporation Circulating fluid system for powder fluidization and method of performing same
US20080062812A1 (en) * 2006-03-16 2008-03-13 Murphy Braden Apparatus and method for premixing lost circulation material
US7387427B2 (en) * 2006-10-20 2008-06-17 Bristol-Myers Squibb Company Method for blending heat-sensitive material using a conical screw blender with gas injection

Also Published As

Publication number Publication date
DE102004021612A1 (en) 2005-10-06
CN101421028A (en) 2009-04-29
DE502005010880D1 (en) 2011-03-03
EP1742725A2 (en) 2007-01-17
ATE495815T1 (en) 2011-02-15
WO2005092485A2 (en) 2005-10-06
US20080037364A1 (en) 2008-02-14
WO2005092485A3 (en) 2008-12-18
US8834011B2 (en) 2014-09-16
CN101421028B (en) 2016-01-20

Similar Documents

Publication Publication Date Title
EP1742725B1 (en) Method and device for pneumatic treatment of powder materials
EP0937004B1 (en) Process and device for pneumatically conveying powdery substances
EP1982074B1 (en) Device, and method for feeding substances
EP0103894B1 (en) Fluidized bed apparatus
EP1619124A1 (en) Device and procedure for filling powder-like products
EP1790570A2 (en) Method and device for transporting bulk materials
EP2505519B1 (en) Transport device for pulverulent and/or granulated material
EP1427657B1 (en) Device and method for transferring a dusty, powdery, grain-like or granular conveyed material out of a storage receptacle and into a working or transfer receptacle or a similar accommodating space
DE19924130B4 (en) Process for the filtration of gases containing pollutants and apparatus for carrying out the process
DE4225483C2 (en) Bulk throttle device for relaxing, discharging, dosing, dispersing and conveying fine-grained bulk goods
EP0900164B1 (en) Process and device for avoiding product dust or product gas emission when decanting with solid or liquid dosage systems
DE202005016035U1 (en) Transfer device for supplying processing materials, has one valve buffer container arranged between one valve and detachable coupling unit, and other valve arranged between unit and container, where unit couples device to processing device
EP1220805A1 (en) System and method for withdrawing bulk material
DE2406874C2 (en) Method and device for mixing goods containing a solid component
CH692143A5 (en) Method for avoiding dust and gas emissions when decanting fluids and solids
DE19503204A1 (en) Device for introducing of bulk material into feeder system, esp. into conveyor pipe
DE2720094A1 (en) Granular material transporting air separation system - delivers upwards into upright cylindrical vessel with filter disc at top to form metering chamber
DE2844876C2 (en) Process for the dust-free transfer of powdery substances in processing devices
DE10334485B4 (en) Transit container for the pneumatic conveying of powdered material
DE10234013A1 (en) Device and method for transferring a dust, powder, granular or granular material to be conveyed from a storage container into a work or transfer container or the like. accommodation space
DE2125307A1 (en) Pneumatic conveying device for conveying granular or powdery material
DE20221545U1 (en) Device for transferring materials in the form of dust, powder or granules, comprises a material delivery line which leads into a filter space located in a container joined to gas and/or air pipes
EP0707931A2 (en) Device for the pneumatic transport of dry, bulk materials
DE2447742B2 (en) Shut-off device between a storage container for lumpy or granular material and the suction line of a pneumatic conveying device that can be connected to the container
DE19724821A1 (en) Flexible container for discharging particulate material

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20061009

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

DAX Request for extension of the european patent (deleted)
PUAK Availability of information related to the publication of the international search report

Free format text: ORIGINAL CODE: 0009015

17Q First examination report despatched

Effective date: 20090608

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502005010880

Country of ref document: DE

Date of ref document: 20110303

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502005010880

Country of ref document: DE

Effective date: 20110303

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BODENSEEPATENT GMBH

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110119

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110519

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110519

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110420

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110419

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

BERE Be: lapsed

Owner name: DIETRICH ENGINEERING CONSULTANTS S.A.

Effective date: 20110331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110331

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

26N No opposition filed

Effective date: 20111020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110331

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502005010880

Country of ref document: DE

Effective date: 20111020

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 495815

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110119

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: DIETRICH ENGINEERING CONSULTANTS S.A., CH

Free format text: FORMER OWNER: DIETRICH ENGINEERING CONSULTANTS S.A., CH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502005010880

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B01F0003180000

Ipc: B01F0023600000

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230621

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20230402

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20240319

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240327

Year of fee payment: 20

Ref country code: GB

Payment date: 20240322

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240329

Year of fee payment: 20

Ref country code: FR

Payment date: 20240319

Year of fee payment: 20