EP0668478B1 - Receptacle with stirring device - Google Patents

Receptacle with stirring device Download PDF

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Publication number
EP0668478B1
EP0668478B1 EP94117059A EP94117059A EP0668478B1 EP 0668478 B1 EP0668478 B1 EP 0668478B1 EP 94117059 A EP94117059 A EP 94117059A EP 94117059 A EP94117059 A EP 94117059A EP 0668478 B1 EP0668478 B1 EP 0668478B1
Authority
EP
European Patent Office
Prior art keywords
gas
receptacle
pipe socket
gas conducting
cartridge
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
EP94117059A
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German (de)
French (fr)
Other versions
EP0668478A1 (en
Inventor
Lorenz Bernhard Bohle
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.)
L B Bohle Pharmatechnik GmbH
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L B Bohle Pharmatechnik GmbH
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Filing date
Publication date
Application filed by L B Bohle Pharmatechnik GmbH filed Critical L B Bohle Pharmatechnik GmbH
Publication of EP0668478A1 publication Critical patent/EP0668478A1/en
Application granted granted Critical
Publication of EP0668478B1 publication Critical patent/EP0668478B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/409—Parts, e.g. diffusion elements; Accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/003—Supply-air or gas filters

Definitions

  • the invention relates to an agitator tank for Drying and, if necessary, granulating pourable products.
  • a drying container is known from US Pat. No. 3,862,707, which has a funnel-shaped wall that is open at the bottom and has no floor. An agitator is in these containers not provided.
  • the invention has for its object a uniform flow through the product to be treated in an agitator tank with trailing gas reach, but the gas inlet openings can be inspected at any time and can therefore be qualified and validatable machines of pharmaceutical Industry can be offered.
  • the gas supply through the new facility Insulating jacket, the gas being in a cylindrical Cartridge unit is headed.
  • This unit points a cylindrical element with a conical taper on that with a sieve of 10 microns or smaller is equipped and gives the gas the opportunity through this stainless steel screen mesh into the product of the Agitator container to enter.
  • the gas supply through the insulating jacket construction of the actual agitator tank is designed so that when cleaning no dead zones are created in this area but at the lowest point in each case the gas escapes and therefore also occurs any cleaning and disinfection liquid can be supplied.
  • the removable ones Cartridges vacuum-tight with the inside of the container close. This ensures that Towing gas cannot escape to the outside.
  • Air with sufficient air can be used as entraining gas Filtration according to pharmaceutical quality a normal room temperature become, but also an inert gas.
  • a water-bound Granulating aid within one Third of the normal vacuum drying time from the Remove product.
  • FIG. 1 In the drawing is a section of a tank bottom wall 1, which shows a gas inlet opening 2 has.
  • the container bottom wall is from crosses a pipe socket 6, which is fixed with the welded metallic wall parts of the bottom wall 1 is, in the illustrated embodiment further part of the insulating jacket 14 and one Part of the water jacket 15 can be seen.
  • the actual gas inlet opening 2 of the container bottom 1 or the gas supply cartridge 3 is through a sieve 4 closed, which is very close-knit is, for example, has a mesh size of 10 microns.
  • a gas supply line leads into the space of the pipe socket 6 7, free in the space of the pipe socket 6 opens, between the inside of this gas supply line 7 and the interior 5 of the gas routing cartridge 3 a connection is established through gas openings 12 that can be seen in the drawing.
  • the gas guide cartridge 3 has on its outside a ring collar 8 with which they are on the supports the outer part of the pipe socket 6, namely again with the interposition of a Ring seal 10. Determining the gas routing cartridge 3 on the pipe socket 6 takes place via a Clamping ring 11, so that a vacuum-tight connection between the gas guide cartridge 3 and the pipe socket 6 and the interior of the actual agitator tank is created.
  • an agitator tank which is designed according to the innovation is six such gas routing cartridges 3 and pipe socket 6 may be provided, and also the one located in the center of the agitator tank bottom Emptying flap can also be used a gas guide cartridge 3 and a pipe socket 6 be provided.
  • the new device enables the supply of Towing gas into an agitator tank in 35 size Scope, so that the drying time of the Container content can be significantly reduced.

Description

Die Erfindung bezieht sich auf einen Rührwerksbehälter zum Trocknen und ggf. Granulieren von schüttfähigen Produkten.The invention relates to an agitator tank for Drying and, if necessary, granulating pourable products.

Aus der US-PS 3 862 707 ist ein Trocknungsbehälter bekannt, der eine trichterförmige Wandung aufweist, die unten offen ist und keinen Boden aufweist. Ein Rührwerk ist in diesen Behältern nicht vorgesehen.A drying container is known from US Pat. No. 3,862,707, which has a funnel-shaped wall that is open at the bottom and has no floor. An agitator is in these containers not provided.

In bekannten Vorrichtungen zum Trocknen und ggf. Granulieren von pulverisiertem Material für pharmazeutische Produkte, z. B. gemäß der EP-385 965 B1, erfolgt das Zuführen des sogenannten ,,Schleppgases" zum Abführen der Feuchte aus dem Trokkungsprozeß durch einen dreiarmigen Rührflügel hindurch in das Produkt. Dieses hat den Nachteil, daß es nur drei Einlaßstellen in einem Rührwerksbehälter gibt, da der dreiarmige Rührflügel eben nur an drei Stellen das Gas in das Produkt ablassen kann. Hierbei bilden sich im Stillstand des Rührflügels schnell Zonen, durch die das Gas in Kanälen entweicht, und das übrige Produkt kommt nicht mit dem Trocknungsgas in Berührung. Nur wenn der Rührflügel in Bewegung ist, ist eine einigermaßen gleichmäßige Durchflutung des zu bearbeitenden Produktes mit Gas sicherzustellen. Da aber bei einer Granulation mit anschließender oder gleichzeitiger Trocknung das Wesentliche darin besteht, daß das Produkt nicht zu stark durch einen Rührer mechanisch beansprucht wird, ist es vorteilhaft, wenn man den Rührer nicht sehr oft in Bewegung setzen muß, sondern die Schleppgasverteilung auf den Umfang des Produktes durch andere Maßnahmen sicherstellen könnte.In known devices for drying and possibly granulating of powdered material for pharmaceutical products, e.g. B. According to EP-385 965 B1, the so-called "Tow gas" for removing moisture from the drying process through a three-armed impeller in the product. This has the disadvantage that there are only three entry points in an agitator tank because the three-armed Only let the agitator vent the gas into the product at three points can. This is when the impeller stops quickly zones through which the gas escapes in channels, and the rest of the product does not come with the drying gas Contact. Only when the impeller is in motion is a reasonably even flow of water ensure the product to be processed with gas. But since with a granulation with subsequent or simultaneous drying the essentials in it there is that the product is not too strong by one Stirrer is mechanically stressed, it is advantageous if you don't move the stirrer very often must set, but the trailing gas distribution on the Ensure the scope of the product using other measures could.

Bei den bekannten Anordnungen entsteht auch ein hygienisches Problem. Die Aussparungen in den Rührwerksflügeln werden über Sintermetalle oder ähnliche poröse Werkstoffe erreicht, die sich aber schlecht oder gar nicht reinigen lassen, so daß derartige Einrichtungen für pharmazeutische Produkte nicht einsetzbar sind.In the known arrangements also arises hygienic problem. The cutouts in the agitator blades are over sintered metals or the like porous materials reached, but these are poor or not at all, so that such Facilities for pharmaceutical products are not can be used.

Der Erfindung liegt die Aufgabe zugrunde, eine gleichmäßige Durchströmung des zu behandelnden Produktes in einem Rührwerksbehälter mit Schleppgas zu erreichen, wobei aber die Gaseintrittsöffnungen jederzeit inspizierbar sind und somit qualifizierbare und validierbare Maschinen der pharmazeutischen Industrie angeboten werden können.The invention has for its object a uniform flow through the product to be treated in an agitator tank with trailing gas reach, but the gas inlet openings can be inspected at any time and can therefore be qualified and validatable machines of pharmaceutical Industry can be offered.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This object underlying the invention will solved by the teaching of the main claim.

Vorteilhafte Ausgestaltungen sind in den Unteransprüchen erläutert.Advantageous embodiments are in the subclaims explained.

Mit anderen Worten ausgedrückt erfolgt bei der neuen Einrichtung die Gaszufuhr durch den Isoliermantel, wobei das Gas in eine zylindrische Cartridge-Einheit geleitet wird. Diese Einheit weist ein zylindrisches Element mit konischer Verjüngung auf, das mit einem Siebgewebe von 10 µm oder kleiner ausgestattet ist und dem Gas die Möglichkeit gibt, durch dieses Edelstahlsiebgewebe in das Produkt des Rührwerksbehälters einzutreten. Die Gaszufuhr durch die Isoliermantelkonstruktion des eigentlichen Rührwerksbehälters ist so ausgebildet, daß im Reinigungsfall keine Totzonen in diesem Bereich geschaffen werden, sondern an der tiefsten Stelle jeweils der Austritt des Gases erfolgt und somit auch eine eventuelle Reinigungs- und Desinfektionsflüssigkeit zugeführt werden kann. Über einen Schnellverschluß in Form eines Spannringes lassen sich die demontierbaren Patronen vakuumdicht mit dem Behälterinneren verschließen. So ist sichergestellt, daß das Schleppgas nicht nach außen dringen kann.In other words, the gas supply through the new facility Insulating jacket, the gas being in a cylindrical Cartridge unit is headed. This unit points a cylindrical element with a conical taper on that with a sieve of 10 microns or smaller is equipped and gives the gas the opportunity through this stainless steel screen mesh into the product of the Agitator container to enter. The gas supply through the insulating jacket construction of the actual agitator tank is designed so that when cleaning no dead zones are created in this area but at the lowest point in each case the gas escapes and therefore also occurs any cleaning and disinfection liquid can be supplied. Via a quick release in the form of a clamping ring, the removable ones Cartridges vacuum-tight with the inside of the container close. This ensures that Towing gas cannot escape to the outside.

Als Schleppgas kann sowohl Luft mit einer ausreichenden Filtrierung nach Pharma-Qualität mit einer ganz normalen Raumtemperatur eingesetzt werden, aber auch ein Inertgas. Mit der neuerungsgemäßen Einrichtung ist es möglich, ein wassergebundenes Granulierhilfsmittel innerhalb eines Drittels der normalen Vakuumtrocknungszeit aus dem Produkt zu entfernen.Air with sufficient air can be used as entraining gas Filtration according to pharmaceutical quality a normal room temperature become, but also an inert gas. With the innovation It is possible to set up a water-bound Granulating aid within one Third of the normal vacuum drying time from the Remove product.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung erläutert.An embodiment of the invention is as follows explained using the drawing.

In der Zeichnung ist ein Ausschnitt aus einer Behälterbodenwand 1 dargestellt, die eine Gaseinlaßöffnung 2 aufweist. Die Behälterbodenwand wird von einem Rohrstutzen 6 durchquert, der fest mit den metallischen Wandteilen der Bodenwand 1 verschweißt ist, wobei bei dem dargestellten Ausführungsbeispiel weiterhin ein Teil des Isoliermantels 14 und ein Teil des Wassermantels 15 erkennbar ist.In the drawing is a section of a tank bottom wall 1, which shows a gas inlet opening 2 has. The container bottom wall is from crosses a pipe socket 6, which is fixed with the welded metallic wall parts of the bottom wall 1 is, in the illustrated embodiment further part of the insulating jacket 14 and one Part of the water jacket 15 can be seen.

Bei dem dargestellten Ausführungsbeispiel schließt der Rohrstutzen 6 an die Öffnung der Behälterbodenwand so an, daß eine Ringstufe geschaffen wird, auf die sich eine in den Rohrstutzen 6 einsetzbare Gasführungspatrone 3 abstützt. Die Abstützung erfolgt dabei unter Zwischenschaltung einer Ringdichtung 9.In the illustrated embodiment, closes the pipe socket 6 to the opening of the container bottom wall so that a ring step is created on which is a gas guide cartridge that can be inserted into the pipe socket 6 3 supports. The support takes place with the interposition of a ring seal 9.

Die eigentliche Gaseinlaßöffnung 2 des Behälterbodens 1 oder der Gasführungspatrone 3 wird durch ein Siebgewebe 4 verschlossen, das sehr engmaschig ist, beispielsweise eine Maschenweite von 10 µm aufweist.The actual gas inlet opening 2 of the container bottom 1 or the gas supply cartridge 3 is through a sieve 4 closed, which is very close-knit is, for example, has a mesh size of 10 microns.

In den Raum des Rohrstutzens 6 führt eine Gaszuführungsleitung 7, die frei im Raum des Rohrstutzens 6 mündet, wobei zwischen dem Inneren dieser Gaszuführungsleitung 7 und dem Innenraum 5 der Gasführungspatrone 3 eine Verbindung durch Gasöffnungen 12 hergestellt wird, die in der Zeichnung erkennbar sind.A gas supply line leads into the space of the pipe socket 6 7, free in the space of the pipe socket 6 opens, between the inside of this gas supply line 7 and the interior 5 of the gas routing cartridge 3 a connection is established through gas openings 12 that can be seen in the drawing.

Die Gasführungspatrone 3 weist an ihrer Außenseite einen Ringkragen 8 auf, mit dem sie sich auf dem äußeren Teil des Rohrstutzens 6 abstützt, und zwar ebenfalls wiederum unter Zwischenschaltung einer Ringdichtung 10. Die Festlegung der Gasführungspatrone 3 an dem Rohrstutzen 6 erfolgt über einen Spannring 11, so daß eine vakuumdichte Verbindung zwischen der Gasführungspatrone 3 und dem Rohrstutzen 6 sowie dem Innenraum des eigentlichen Rührwerksbehälters geschaffen wird.The gas guide cartridge 3 has on its outside a ring collar 8 with which they are on the supports the outer part of the pipe socket 6, namely again with the interposition of a Ring seal 10. Determining the gas routing cartridge 3 on the pipe socket 6 takes place via a Clamping ring 11, so that a vacuum-tight connection between the gas guide cartridge 3 and the pipe socket 6 and the interior of the actual agitator tank is created.

In einem Rührwerksbehälter, der neuerungsgemäß ausgebildet ist, können sechs solcher Gasführungspatronen 3 und Rohrstutzen 6 vorgesehen sein, und auch die im Zentrum des Rührwerksbehälterbodens angeordnete Entleerungsklappe kann zusätzlich mit einer Gasführungspatrone 3 und einem Rohrstutzen 6 versehen sein.In an agitator tank, which is designed according to the innovation is six such gas routing cartridges 3 and pipe socket 6 may be provided, and also the one located in the center of the agitator tank bottom Emptying flap can also be used a gas guide cartridge 3 and a pipe socket 6 be provided.

Die neue Vorrichtung ermöglicht die Zufuhr von Schleppgas in einen Rührwerksbehälter in 35großem Umfang, so daß dadurch die Trocknungszeit des Behälterinhaltes erheblich verringert werden kann.The new device enables the supply of Towing gas into an agitator tank in 35 size Scope, so that the drying time of the Container content can be significantly reduced.

Claims (6)

  1. Receptacle with stirring device for drying and, if appropriate, granulating pourable products, more particularly for pharmaceutical products, having gas inlet ports (2) which pass right through the receptacle's bottom wall (1) and into each of which can be inserted a gas conducting cartridge (3) which is occluded on the side nearest the interior of the receptacle and opposite its interior (5) by a screen netting (4); inserted into the insulating casing construction of the receptacle are pipe sockets (6) which on their side directed towards the interior of the receptacle define the gas inlet port and which project outwards past the outside of the receptacle and are used to accommodate the gas conducting cartridges (3); communication between the inside of the gas supply line (7) and the inside of the gas conducting cartridge (3) is accomplished via gas ports (12) provided in the casing of the gas conducting cartridge (3).
  2. The apparatus according to claim 1, characterised in that the screen netting (4) is made of stainless steel and has a mesh size of approximately 10 µm.
  3. The apparatus according to either of the preceding claims, characterised in that leading to each pipe socket (6) is a gas supply line (7) which opens out into the interior of the pipe socket (6).
  4. The apparatus according to any of the preceding claims, characterised in that each gas conducting cartridge (3) consists of a cylinder head which is occluded at one end by the screen netting (4), the said end of the gas conducting cartridge being sealingly supported on the inner face of the pipe socket (6) in the region of the gas inlet port (2) and the other end of the gas conducting cartridge (3) being sealingly supported by means of an annular collar (8) and adapted to be located there.
  5. The apparatus according to any of the preceding claims, characterised in that the sealing of the gas conducting cartridge (3) inside the pipe socket (6) is accomplished via ring seals (9 and 10).
  6. The apparatus according to any of the preceding claims, characterised in that a fast-action closure (clamping ring 11) is used to locate the gas conducting cartridge (3) inside the pipe socket (6).
EP94117059A 1994-02-16 1994-10-28 Receptacle with stirring device Expired - Lifetime EP0668478B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9402499U DE9402499U1 (en) 1994-02-16 1994-02-16 Agitator tank
DE9402499U 1994-02-16

Publications (2)

Publication Number Publication Date
EP0668478A1 EP0668478A1 (en) 1995-08-23
EP0668478B1 true EP0668478B1 (en) 1998-07-22

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EP94117059A Expired - Lifetime EP0668478B1 (en) 1994-02-16 1994-10-28 Receptacle with stirring device

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EP (1) EP0668478B1 (en)
DE (2) DE9402499U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8163032B2 (en) 2002-06-13 2012-04-24 Kensey Nash Bvf Technology, Llc Devices and methods for treating defects in the tissue of a living being
US8497236B2 (en) 1998-02-13 2013-07-30 Zimmer Orthobiologics, Inc. Implantable putty material
US8613938B2 (en) 2010-11-15 2013-12-24 Zimmer Orthobiologics, Inc. Bone void fillers
US8690874B2 (en) 2000-12-22 2014-04-08 Zimmer Orthobiologics, Inc. Composition and process for bone growth and repair
US8742072B2 (en) 2006-12-21 2014-06-03 Zimmer Orthobiologics, Inc. Bone growth particles and osteoinductive composition thereof

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
GB191312232A (en) * 1912-08-26 1914-01-08 Theodor Otto Franke Improvements in Processes and Apparatus for Heating Material Containing Liquid.
US3913238A (en) * 1972-07-20 1975-10-21 Day J H Co Method and apparatus for drying particulate materials
US3829022A (en) * 1973-04-04 1974-08-13 Material Control Inc Aerating device for pulverulent material
US3862707A (en) * 1973-05-04 1975-01-28 Material Control Inc Bin aerator assembly or unit
CH641375A5 (en) * 1979-05-21 1984-02-29 Glatt Maschinen & Apparatebau DEVICE FOR THE FORMATION OF GRANULES OR AGGLOMERATES.
US4465238A (en) * 1981-09-04 1984-08-14 Jhina Patel Filter for hot air nozzle
US4622152A (en) * 1983-12-08 1986-11-11 Littleford Bros., Inc. Combined mixing, reacting, drying and filtering device
EP0268691A1 (en) * 1986-11-20 1988-06-01 Thomas Lammers Device for drying construction parts furnished with a surface layer

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8497236B2 (en) 1998-02-13 2013-07-30 Zimmer Orthobiologics, Inc. Implantable putty material
US8690874B2 (en) 2000-12-22 2014-04-08 Zimmer Orthobiologics, Inc. Composition and process for bone growth and repair
US8163032B2 (en) 2002-06-13 2012-04-24 Kensey Nash Bvf Technology, Llc Devices and methods for treating defects in the tissue of a living being
US8419802B2 (en) 2002-06-13 2013-04-16 Kensey Nash Bvf Technology, Llc Devices and methods for treating defects in the tissue of a living being
US8425619B2 (en) 2002-06-13 2013-04-23 Kensey Nash Bvf Technology, Llc Devices and methods for treating defects in the tissue of a living being
US8435306B2 (en) 2002-06-13 2013-05-07 Kensey Nash Bvf Technology Llc Devices and methods for treating defects in the tissue of a living being
US8623094B2 (en) 2002-06-13 2014-01-07 Kensey Nash Bvf Technology Llc Devices and methods for treating defects in the tissue of a living being
US9283074B2 (en) 2002-06-13 2016-03-15 Kensey Nash Bvf Technology, Llc Devices and methods for treating defects in the tissue of a living being
US8742072B2 (en) 2006-12-21 2014-06-03 Zimmer Orthobiologics, Inc. Bone growth particles and osteoinductive composition thereof
US8613938B2 (en) 2010-11-15 2013-12-24 Zimmer Orthobiologics, Inc. Bone void fillers

Also Published As

Publication number Publication date
DE9402499U1 (en) 1994-07-14
DE59406496D1 (en) 1998-08-27
EP0668478A1 (en) 1995-08-23

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