EP1407206B1 - Trockner für getreide und körniges gut im allgemeinen - Google Patents

Trockner für getreide und körniges gut im allgemeinen Download PDF

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Publication number
EP1407206B1
EP1407206B1 EP02762321A EP02762321A EP1407206B1 EP 1407206 B1 EP1407206 B1 EP 1407206B1 EP 02762321 A EP02762321 A EP 02762321A EP 02762321 A EP02762321 A EP 02762321A EP 1407206 B1 EP1407206 B1 EP 1407206B1
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EP
European Patent Office
Prior art keywords
chamber
drying
flow
air
dryer according
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Expired - Lifetime
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EP02762321A
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English (en)
French (fr)
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EP1407206A2 (de
Inventor
Silvano Barbieri
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AGREX SpA
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AGREX SpA
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    • 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
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
    • 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
    • F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
    • F26B17/14—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas
    • F26B17/1408—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the gas being supplied and optionally extracted through ducts extending into the moving stack of material
    • F26B17/1425—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the gas being supplied and optionally extracted through ducts extending into the moving stack of material the ducts being perforated and arranged vertically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • F26B9/08—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers including agitating devices, e.g. pneumatic recirculation arrangements
    • F26B9/082—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers including agitating devices, e.g. pneumatic recirculation arrangements mechanically agitating or recirculating the material being dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/10—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof
    • F26B9/103—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof using fixed or removable drying air channels placed in the stack, e.g. horizontally or vertically

Definitions

  • the present invention relates to a dryer for cereals and granular materials in general according to the preamble of claim 1.
  • the present invention finds a particular, although not exclusive, application in the field of mobile dryers, or rather those dryers which are stationed close to the cereal harvesting areas in order to dry the cereals on site and in a short time so as to avoid degradation thereof due principally to the moisture contained in the harvested cereal.
  • Dryers of the type indicated typically comprise a vertical cylindrical drying chamber adapted to contain the harvested cereal, and a heating unit including a bumer associated with a combustion chamber for the production of hot air to be introduced inside the drying chamber for the purpose of facilitating the evaporation of the moisture contained in the cereal being dried.
  • a fan is conventionally provided for introducing the flow of air into the drying chamber in a central cavity separated from the stored cereal, for example by means of panels with perforated surface. From this central cavity the flow of hot air generated and mixed with the combustion gases is caused to penetrate into the layers of cereal present in the drying chamber, promoting the aforesaid drying process.
  • the drying air is therefore heated at the combustion chamber, in order then to be conveyed inside the central cavity of the drying chamber. Moreover, the flow of air heated by the heating unit is introduced into the cavity mixed with the combustion gases which therefore come into contact with the cereal in the drying process.
  • a grain dryer having the feature according to the preamble of claim 1 is known from US 4341516.
  • US 1361351 is directed to an air heater designed in general for use in connection with drying apparatus.
  • US 2706345 is also prior art to the present invention, being directed to a vertical drier for grain.
  • Another type of dryer provides for the use of a heat exchanger placed externally of the dryer, by means of which the flow of air is heated which is then conveyed inside the drying chamber.
  • a principal aim of the present invention is that of providing a dryer for cereals or similar materials, of an improved type capable of maximising the efficiency in the thermal exchange between the heat generated by the heating unit and that transferred to the flow of air responsible for the drying process, improving the overall output thereof.
  • Another aim is to produce a dryer which makes it possible to keep the flow of drying hot air separate from the combustion gases, preventing contact of the latter with the cereal, so safeguarding the characteristics of the cereal itself.
  • Yet another aim is to produce a dryer which improves the overall efficiency of the thermal exchange in order to obtain in fast times a high and homogenous degree of drying of the mass of cereal to be dried.
  • the dryer 1 comprises a drying chamber, indicated as a whole by 2, which consists of an upper main part 2a of cylindrical shape, and of a frustoconical lower hopper part 2b which ends in a delivery mouth 3 bearing a plate-type shutter with adjustable opening for partialising the quantity of cereal discharged.
  • the drying chamber 2 is mounted on a frame 4 with wheels 5 so that the dryer is mobile and transportable onto the cereal harvesting site where drying takes place.
  • Conveyor devices preferably screw conveyors, are further provided for the functions of loading/unloading and also recirculating the cereal inside the drying chamber. More particularly, a horizontal screw conveyor 6 is provided, placed below the delivery mouth 3 and connected to a vertical screw conveyor 7.
  • the latter extends parallel to the vertical central axis X of the drying chamber 2, from the lower base of the chamber to the apex thereof, where there is disposed an inclined discharge pipe 8 by means of which the material which ascends from the vertical conveyor 7 can drop down again inside the chamber 2 or to the outside, in the discharge (emptying) phase of the dryer.
  • a third screw conveyor 9 is provided for transferring the cereal at the point of connection of the conveyors 6 and 7.
  • the section of horizontal conveyor 6 extending between the delivery mouth 3 and the connection with the vertical conveyor 7 is further arranged to convey the material delivered by the mouth 3 and to transfer it, through the vertical screw 7 back inside the drying chamber to guarantee the recirculation of the cereal during the drying phase.
  • the dryer 1 also comprises a heating unit 10 including a bumer 11 associated with a combustion chamber 12 for heating a flow of air to be introduced into the drying chamber 2, as will appear more clearly in the continuation of the description, in order to promote drying of the cereal.
  • a flow of air is generated by a fan 13 and is conveyed, through a duct 14, into the drying chamber and, more particularly, into a central cavity 15 of the chamber bounded by a bell 16 with perforated surface, for example formed by panelling 17 of perforated sheet metal adapted to keep the cavity separate from the cereal, but at the same time permitting the passage of the flow of air from the cavity in the direction of the layers of cereal stored in the dryer.
  • Said central cavity 15 is coaxial with the drying chamber so that said bell 16 is surrounded by the cereal loaded into the drying chamber.
  • the combustion chamber 12 is mounted internally of the duct 14, coaxially therewith, and is extended as far as the inside of the central cavity 15 where it communicates with a further chamber 18 constituting a heat exchange device for heating the flow of drying air, as described in greater detail hereinafter.
  • Said chamber 18 is bounded by a lateral wall 19a closed by opposed end walls 19b, 19c, all the walls defining respective surfaces for thermal exchange between the combustion gases conveyed inside the chamber 18 and the flow of drying air, generated by the fan, which flows along the outside of said walls.
  • the chamber 18 is produced so as to be sealed against the escape of the flue gases and their possible introduction into the drying chamber.
  • the chamber 18 is provided with an inlet aperture 20 for the flue gases, communicating with the combustion chamber, and also with a plurality of outlet apertures 21 for the flue gases, connected to conveying means for the flue gases to transfer them to the outside of the drying chamber.
  • Said conveying means comprise a plurality of tubular ducts 22 communicating at an axial end thereof with the chamber 18, and at the opposite end with a common manifold 23, connected in its turn to a flue gas discharge chimney, indicated by 24.
  • the ducts 22 are extended in a bundle around the combustion chamber 12 and are housed internally of the duct 14 so as to be assailed in a counterflow by the flow of air generated by the fan and directed into the drying chamber. The result is thus a further thermal exchange between the flue gases conveyed outside by the ducts 22 and the flow of drying air induced by the fan for pre-heating of said flow of air, exploiting the heat of the combustion gases directed to the discharge chimney.
  • the latter is provided with further finned surfaces consisting, for example, of suitably shaped plate-like members 25 fixed to the lateral wall 19a so as to define passages for channelling the flow of drying air with an increase in the thermal exchange surface flowed over.
  • Tubular members are further provided, all indicated by 26, passing inside the chamber 18 and open at the opposed ends and also suitably secured to the lateral wall 19a, which are intended to be assailed by the hot combustion gases inside the chamber 18 to induce a thermal exchange between said gases and the flow of drying air conveyed in said tubular members for a further transfer of heat to the flow of air.
  • the chamber 18 has an approximately annular configuration comprising a central cylindrical opening 27 coaxial with the axis X, suitable for permitting the passage of a central shaft 28 for the actuation of mixing means 29 for mixing the cereal.
  • the cylindrical opening 27 is selected to be of such dimensions and shape as to allow the positioning of the conveyor.
  • the chamber 18 may alternatively be devoid of a central through opening or provide a reduced opening for the passage of transmission devices such as for example the aforesaid shaft 28.
  • the surface of the cylindrical opening is also conveniently provided with further fins 30, for example in the form of profiles extending axially at a predetermined angular pitch, and adapted to increase the thermal exchange surface.
  • the lateral wall 19a of the chamber 18 is further provided with an indentation 31 defining, within the chamber itself, a pair of deflector surfaces 32a, 32b adapted to deflect the flow of hot flue gases introduced into the chamber, inducing internal circulatory motions to facilitate the transfer of heat to the walls of the chamber itself, maximising the relative thermal exchange.
  • Each duct 22 of the tube bundle which envelopes the combustion chamber 12 is further provided on the inside with a respective helical body 33, coaxial therewith.
  • a respective helical body 33 is in the shape of a double helix or rather is formed by a pair of superposed and angularly spaced helices which define, in each duct 22, a flow channel with a double-helical course in which the combustion gases are conveyed.
  • the helical bodies 33 are axially slidable in the corresponding ducts 22 and for this purpose they are provided with a respective manipulation handle 34 provided at the axial end of the body 33 facing towards the flue gas discharge manifold 23.
  • a ring of openings 35 coaxial with the tube bundle 22 is provided to permit the extraction and insertion of the helical bodies 33 from and into the respective ducts of the bundle.
  • the invention thus fulfils the aims proposed by obtaining numerous advantages with respect to the known solutions.
  • a principal advantage is that with the dryer according to the invention the efficiency of the thermal exchange in the heating of the drying air is increased, owing to the fact that the combustion and also the combustion gases are brought directly inside the drying chamber and collected in a chamber constituting a heat exchanger in which the thermal exchange is maximised. Tests conducted by the Applicant have shown a greater efficiency in the overall thermal exchange with respect to the known solutions.
  • a further advantage is that the heat of the hot combustion gases directed to the discharge chimney is effectively transferred to the flow of drying air for pre-heating of the flow itself, benefitting from a thermal exchange in counterflow.
  • a further advantage is that according to the invention the combustion gases are kept separate from the flow of drying air inside the drying chamber so as to avoid contact between the flue gases and combustion products and the cereal, preserving the characteristics and properties of the latter.
  • a still further advantage is that the efficiency of the thermal exchange in counterflow between the flue gases conveyed in the bundle of discharge ducts and the flow of air generated by the fan is increased owing to the helical flow channels provided within the ducts, which also make it possible to limit advantageously the overall axial dimensions of the tube bundle, reducing the overall size of the dryer.
  • a further advantage is that the application of the exchanger does not involve structural and dimensional changes to the dryer, thus allowing its application to existing machines, and also the containment of the production costs. Moreover, the overall dimensions do not change, thus keeping the transport costs unaltered.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Cereal-Derived Products (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Claims (15)

  1. Trockner für Getreide und körniges Material im Allgemeinen, umfassend:
    - eine Trocknungskammer (2) geeignet zum Aufnehmen des zu trocknenden Getreides und des körnigen Materials im Allgemeinen,
    - eine Erwärmungseinheit (10) mit einem Brenner (11) dem eine Verbrennungskammer (12) zum Erwärmen eines Luftstroms zugeordnet ist, der in die Trocknungskammer (2) zum Trocknen des Getreides und des körnigen Materials im Allgemeinen eingeführt werden soll,
    - eine weitere Kammer (18) angeordnet in der Trocknungskammer (2), so dass sie von der Masse an zu trocknendem Getreide und körnigem Material im Allgemeinen umgeben ist, wobei sich die Kammer (18) in Verlängerung und in Kommunikation mit der Verbrennungskammer (12) der Erwärmungseinheit (10) in solcher Weise erstreckt, dass sie eine Wärmeaustauscheinrichtung zum Erwärmen der Trocknungsluft bildet,
    - einen Kanal (14), durch den der Strom von Trocknungsluft in einen zentralen Hohlraum (15) der Trocknungskammer befördert wird, wobei der zentrale Hohlraum von einer Glocke mit perforierter Oberfläche begrenzt wird, die die Kammer (18) umgibt, die den Wärmeaustauscher bildet, um den Hohlraum (15) vom Getreide und dem körnigen Material im Allgemeinen getrennt zu halten, aber gleichzeitig den Durchtritt des Luftstroms vom Hohlraum in Richtung des Getreides und des körnigen Materials im Allgemeinen zu erlauben, die im Trockner gelagert sind,
    dadurch gekennzeichnet, dass die Kammer (18), die den Wärmeaustauscher bildet, gegen das Eindringen von Verbrennungsgasen in die Trocknungskammer (2) abgedichtet ist, so dass die Verbrennungsgase deshalb direkt in die Trocknungskammer getrennt vom Trocknungsluftstrom eingebracht werden,
    und dadurch, dass der zentrale Hohlraum koaxial zur Trocknungskammer ist.
  2. Trockner nach Anspruch 1, worin die Trocknungskammer (2) einen oberen Teil im Wesentlichen in zylindrischer Form umfasst, wobei die Kammer (18), die den Wärmeaustauscher bildet, zur Trocknungskammer koaxial ist.
  3. Trockner nach Anspruch 1 oder 2, worin die Kammer (18), die den Wärmeaustauscher bildet, durch Wände (19a, 19b, 19c) begrenzt ist, die Oberflächen für Wärmeaustausch zwischen den Verbrennungsgasen, die in die Kammer (18) befördert werden, und dem Trocknungsluftstrom der entlang der Außenseite der Oberflächen (19a, 19b, 19c) strömt, definieren.
  4. Trockner nach Anspruch 3, worin die Wände ferner mit strukturierten Oberflächen (25) versehen sind, die geeignet sind, den thermischen Austausch in der Austauschervorrichtung zu erhöhen.
  5. Trockner nach einem oder mehreren der vorhergehenden Ansprüche, worin rohrförmige Elemente (26) vorgesehen sind, die in der Kammer (18) verlaufen und von den Verbrennungsgasen angegangen werden können, so dass thermischer Austausch zwischen den Gasen und dem Trocknungsluftstrom induziert wird, der in den rohrförmigen Elementen (26) zum Erwärmen der Luft befördert wird.
  6. Trockner nach einem oder mehreren der vorhergehenden Ansprüche, worin die Kammer (18), die den Wärmeaustauscher bildet, eine erste Einlassöffnung (20) für die Abgase umfasst, die direkt mit der Verbrennungskammer (12) verbunden ist, und mindestens eine zweite Auslassöffnung (21) für die Abgase verbunden mit Mitteln (22) zum Befördern der Abgase aus der Trocknungskammer (2).
  7. Trockner nach Anspruch 6, worin das Beförderungsmittel mindestens einen rohrförmigen Kanal (22) mit gegenüberliegenden Enden umfasst, die mit der Kammer (18) verbunden sind, die den Wärmeaustauscher bildet, und mit einem Abgasableitkamin (24).
  8. Trockner nach Anspruch 7, worin eine Mehrzahl der rohrförmigen Kanäle (22) vorgesehen ist, um die Abgase in den Kamin (24) zu befördern, außerhalb der Trocknungskammer (2).
  9. Trockner nach Anspruch 8, worin die Kanäle (22) sich in einem Bündel um die Verbrennungskammer (12) erstrecken und mit einer Verteilervorrichtung (23) verbunden sind, die mit dem Abgasableitkamin (24) kommuniziert.
  10. Trockner nach Anspruch 9, worin das Bündel Kanäle (22) in einer Position derart angeordnet ist, dass sie im Gegenstrom von einem Luftstrom angegangen werden, der von einem Lüftermittel erzeugt ist, für einen thermischen Austausch zwischen den Abgasen und dem Luftstrom, so dass der in die Trocknungskammer (2) eingeführte Luftstrom vorgewärmt wird.
  11. Trockner nach einem der Ansprüche 7 bis 10, worin Mittel vorgesehen sind, um den von den Abgasen in jedem der Kanäle (22) des Bündels zurückgelegten Weg zu verlängern, so dass der thermische Austausch zwischen den Abgasen und dem Luftstrom, der vom Lüftermittel in einem Gegenstrom zu den Verbrennungsgasen geschickt wird, erhöht wird.
  12. Trockner nach Anspruch 11, worin die Mittel jeweils einen schraubenförmigen Körper (33) umfassen, der koaxial in jedem der Kanäle untergebracht ist, um einen Strömungskanal mit schraubenförmigem Verlauf entlang der axialen Erstreckung der Kanäle (22) zu definieren.
  13. Trockner nach Anspruch 12, worin jeder der schraubenförmigen Körper (33) entfernbar im jeweiligen Kanal (22) angebracht ist.
  14. Trockner nach Anspruch 12 oder 13, worin jeder der schraubenförmigen Körper (33) im jeweiligen Kanal (22) axial verschiebbar ist.
  15. Trockner nach einem der Ansprüche 12 bis 14, worin jeder der schraubenförmigen Körper (33) mit einem entsprechenden Handhabungsgriff (34) versehen ist, der sich vom Ende des Körpers (33) erstreckt, das dem Ableitkamin (24) für die Verbrennungsgase zugewandt ist.
EP02762321A 2001-07-18 2002-07-04 Trockner für getreide und körniges gut im allgemeinen Expired - Lifetime EP1407206B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2001PD000181A ITPD20010181A1 (it) 2001-07-18 2001-07-18 Essiccatoio per cereali e materiali granulari in genere.
ITPD20010181 2001-07-18
PCT/EP2002/007426 WO2003008887A2 (en) 2001-07-18 2002-07-04 Dryer for cereals and granular materials in general

Publications (2)

Publication Number Publication Date
EP1407206A2 EP1407206A2 (de) 2004-04-14
EP1407206B1 true EP1407206B1 (de) 2006-06-28

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EP02762321A Expired - Lifetime EP1407206B1 (de) 2001-07-18 2002-07-04 Trockner für getreide und körniges gut im allgemeinen

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EP (1) EP1407206B1 (de)
AT (1) ATE331924T1 (de)
AU (1) AU2002328314A1 (de)
DE (1) DE60212845D1 (de)
IT (1) ITPD20010181A1 (de)
PL (1) PL200040B1 (de)
RU (1) RU2295682C2 (de)
UA (1) UA80683C2 (de)
WO (1) WO2003008887A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT15660U1 (de) * 2015-11-25 2018-04-15 Lasco Heutechnik Gmbh Mobiles Trocknungssystem

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US8578624B2 (en) * 2006-05-05 2013-11-12 Solex Thermal Science Inc. Indirect-heat thermal processing of particulate material
WO2008137691A2 (en) * 2007-05-03 2008-11-13 Archer-Daniels-Midland Company A system for using heat to process an agricultural product, a fluidized bed combustor system, and methods of employing the same
CN106322940A (zh) * 2016-08-19 2017-01-11 苏州毕诺佳医药技术有限公司 一种医疗机械配件的智能烘干系统
CN106322931A (zh) * 2016-08-19 2017-01-11 苏州毕诺佳医药技术有限公司 一种医疗器械的配件的烘干机器人
IT201700053106A1 (it) * 2017-05-16 2018-11-16 Agrex Spa Gruppo scambiatore di calore, gruppo generatore di calore e apparecchiatura per l´essicazione di prodotti sfusi
IT201700082606A1 (it) * 2017-07-20 2019-01-20 Agrex Spa Impianto termico
IT201800003153A1 (it) * 2018-02-28 2019-08-28 Styl Tecnology Soc A Responsabilita Limitata Generatore di calore a combustibile solido
JP7267529B2 (ja) * 2018-08-17 2023-05-02 株式会社山本製作所 穀物乾燥装置
CL2021003552A1 (es) * 2021-12-29 2022-02-11 Univ Tecnica Federico Santa Maria Utfsm Sistema dual para el calentamiento de aire u otros gases mediante combustión directa o indirecta

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US1361351A (en) * 1920-09-08 1920-12-07 Spoelstra Watze Air-heater
US2706345A (en) * 1951-01-17 1955-04-19 Arndt Raymond Vertical drier
US2776654A (en) * 1953-04-09 1957-01-08 Hartzell Industries Hot air furnace type drying apparatus
FR2239165A5 (en) * 1973-07-23 1975-02-21 Guyer Elbert Animal feed grain cooker - uses burner deoxygenated hot air supplied to grain space between concentric perforated vessels
US4341516A (en) * 1981-05-18 1982-07-27 Blount, Inc. Grain dryer with heat exchange assembly
US4402302A (en) * 1981-06-19 1983-09-06 Westelaken C Air heating apparatus
IT1183301B (it) * 1985-01-25 1987-10-22 Francesco Forestan Essiccatoio agricolo a fuoco diretto
DE4339045A1 (de) * 1993-11-16 1995-05-18 Knoll Anlagenbau Gmbh Lufterhitzer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT15660U1 (de) * 2015-11-25 2018-04-15 Lasco Heutechnik Gmbh Mobiles Trocknungssystem

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Publication number Publication date
ITPD20010181A1 (it) 2003-01-18
AU2002328314A1 (en) 2003-03-03
WO2003008887A3 (en) 2003-09-04
UA80683C2 (en) 2007-10-25
DE60212845D1 (de) 2006-08-10
RU2295682C2 (ru) 2007-03-20
ATE331924T1 (de) 2006-07-15
EP1407206A2 (de) 2004-04-14
PL366843A1 (en) 2005-02-07
WO2003008887A2 (en) 2003-01-30
PL200040B1 (pl) 2008-11-28
RU2004104640A (ru) 2005-05-10

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