EP2096394B1 - Vorrichtung zur Trocknung eines wasserhaltigen Gemisches - Google Patents

Vorrichtung zur Trocknung eines wasserhaltigen Gemisches Download PDF

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Publication number
EP2096394B1
EP2096394B1 EP09153726.6A EP09153726A EP2096394B1 EP 2096394 B1 EP2096394 B1 EP 2096394B1 EP 09153726 A EP09153726 A EP 09153726A EP 2096394 B1 EP2096394 B1 EP 2096394B1
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EP
European Patent Office
Prior art keywords
mixture
plate
orbital path
entraining elements
water
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Application number
EP09153726.6A
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English (en)
French (fr)
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EP2096394B2 (de
EP2096394A1 (de
Inventor
Lieven DEPRAETERE
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Spiessens bvba
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Majast bvba
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Application filed by Majast bvba filed Critical Majast bvba
Priority to PL09153726T priority Critical patent/PL2096394T5/pl
Publication of EP2096394A1 publication Critical patent/EP2096394A1/de
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Publication of EP2096394B1 publication Critical patent/EP2096394B1/de
Publication of EP2096394B2 publication Critical patent/EP2096394B2/de
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    • 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
    • F26B17/008—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material being a slurry or paste applied onto moving elements, e.g. chains, plates, for drying thereon, and subsequently removed therefrom
    • 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
    • F26B17/28—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve, the axis of rotation being in fixed position

Definitions

  • the present invention relates to a device for drying a water-containing mixture comprising at least one body which can be moved along a closed orbital path and is situated in the mixture during a first part of the orbital path and is situated outside the mixture during a second part of the orbital path.
  • the present invention relates in particular to a device for drying slurry.
  • the flotation thickener comprises a tank into which small air bubbles are blown in order thus to create a separation between the solids and the water which is present.
  • a third technique is mechanical thickening, in which the water is separated off by means of mechanical forces, as a result of which higher solids contents can be achieved compared to the techniques mentioned earlier.
  • the present invention relates in particular to such mechanical thickeners.
  • a number of (drying) devices are known for mechanically thickening water-containing mixtures.
  • an endlessbelt screen or thickening table in which the mixture to be thickened is poured onto a movable endless belt, are known. Due to the screening action of the belt, the mixture can be drained, as it were.
  • the mixture to be thickened is poured into a container.
  • This container is provided with a number of perforated conveyor belts which are situated next to one another and partly extend into the mixture. Thickening is achieved by conveying the mixture away from the mixture by means of the conveyor belts and subsequently drying the mixture by passing an air flow through the perforations.
  • this thickening procedure has the drawback that the conveyor belts are subjected to high wear.
  • the various components (e.g. shafts, roller bearings) of the device can be damaged or soiled by the mixture to be thickened, as a result of which these components become jammed and have to be replaced on a regular basis.
  • FR-A-2 645 042 describes a device for drying a water-containing mixture, comprising a trough and one or a number of series of parallel discs driven in rotation by horizontal shafts. The discs are half-immersed in the product to be dried.
  • the object of the invention is achieved by providing a device for drying a water-containing mixture comprising at least one body which comprises a number of plate-shaped entraining elements extending along approximately the entire length of the device and which are designed in such a manner that they entrain part of the mixture, wherein said body is a rotor which is rotatable about a central axis so that said plate-shaped entraining elements can be moved along a closed orbital path and are situated in the mixture during a first part of the orbital path and are situated outside the mixture during a second part of the orbital path, wherein said plate-shaped entraining elements are arranged in a fan-shaped way and in a curved manner, in the direction of rotation of the body, on this body.
  • Such an arrangement offers the advantage that when the entraining elements come into contact with the mixture to be dried during their rotation, they scoop up this mixture, as it were.
  • This device has the advantage that, in use, only the plate-shaped entraining elements come into contact with the water-containing mixture, as a result of which downtime as a result of damaged or soiled components can be reduced to a minimum.
  • This invention furthermore offers the advantage that a large number of plate-shaped entraining elements can be provided in the device, as a result of which, on the one hand, a large amount of mixture to be dried can be entrained and, on the other hand, a large drying surface is created in the second part of the orbital path. In this way, mixtures can be dried (thickened) much more quickly.
  • the device in a preferred embodiment, comprises ventilation means for generating an air flow directed at the device in order to dry the entrained mixture during the second part of its orbital path.
  • the generated air flow is heated.
  • the temperature of the generated air flow is between 20 and 130°C.
  • the plate-shaped entraining elements extend substantially along the central rotation axis.
  • said body comprises two side walls, with each plate-shaped entraining element being connected to both side walls.
  • Said entraining elements are preferably fixedly arranged between both side walls.
  • said body is provided in a housing, said housing comprising an inlet and outlet for the air flow generated by the ventilation means.
  • the generated air flow is, as it were, forced across the entraining elements which are situated in the second part of their orbital path, in order to achieve an optimum drying effect in this manner.
  • the device furthermore comprises drive means for the body, in particular for the rotor.
  • the drive means preferably consist of asynchronous motors.
  • said device comprises a storage container for the water-containing mixture.
  • the device (1) is a drying device for water-containing mixtures.
  • This device (1) can in particular be used for drying (thickening) manure, slurry, sludge, industrial effluents, and the like.
  • the device (1) comprises a body (2) which can be moved along a closed orbital path and is situated in the mixture during a first part of the orbital path and is situated outside the mixture during a second part of the orbital path. It is obvious that it is also possible to achieve the effect of the invention by providing two or more of such bodies (2) next to one another.
  • the movable body (2) is in particular a rotor which is rotatable about a central axis (8) and which comprises a number of fixedly arranged plate-shaped entraining elements (3) which are designed to entrain the mixture to be dried from the first part to the second part.
  • the plate-shaped entraining elements (3) extend along approximately the entire length of the device (1) in a direction along the rotation axis. As the entraining elements (3) have a certain width (preferably variable between 0.5 and 2 m), they will also partly extend (see Fig. 3 ) in the direction of the central axis (8).
  • the plate-shaped entraining elements (3) When the movable body (2) is rotated, the plate-shaped entraining elements (3) will be immersed one by one and at least partly (first part) into the mixture provided in the storage container (7). Preferably, the entraining elements (3) are completely immersed in the mixture provided in the storage container (7). As a result of the immersion, part of the mixture will cling to the elements (3) and be carried along to the second part, where the entrained mixture can dry.
  • the device (1) is furthermore provided with ventilation means (not shown) for generating an air flow (L) directed at the device (1) in order to dry the mixture carried along by the entraining elements (3) during the second part of its orbital path.
  • This air flow is preferably a hot air flow and may, for example, emanate from an electrical group, flue gasses from a chimney, air from a stable, etc.
  • the rotor is provided in a housing (5) (see Fig. 1 ), said housing (5) comprising an inlet and outlet for the air flow (L) generated by the ventilation means.
  • the rotor is arranged in such a manner that only the plate-shaped entraining elements (3) come into contact with the mixture. As a result thereof, downtime as a result of damaged or soiled components can be reduced to a minimum.
  • the rotor comprises two circular side walls (4) situated opposite one another.
  • one end of the plate-shaped entraining elements (3) is connected to the one side wall (4) and the other end is connected to the other side wall (2).
  • Said entraining elements (3) are positioned at a certain distance from one another and are, as can be seen in Fig. 3 , placed on this rotor in the shape of a fan in the direction (of rotation) (R) of the rotor.
  • the plate-shaped entraining elements (3) can be designed to be flat, deflected or profiled. They are preferably made of stainless steel.
  • the entraining elements (3) may have both a smooth and a perforated surface. Their surface may also be provided with protuberances by means of, for example, sandblasting.
  • the device (1) according to the invention may be provided with a large number of plate-shaped entraining elements (3) as a result of which, on the one hand, a large amount of mixture to be dried can be entrained and, on the other hand, a much greater drying surface is created in the second part of the orbital path, compared to the known thickeners, as is clear from the following example.
  • each rotor comprises 40 plate-shaped entraining elements (3) which as it were move along a closed orbital path, as they form part of the movable body (2), with each entraining element (3) being situated in the mixture during a first part of its orbital path and being situated outside the mixture during a second part of its orbital path.
  • the arrangement of the rotor and the dimensions (in particular the width) of the various entraining elements (3) are such that there are always 8 entraining elements (3) which are immersed in the water-containing mixture.
  • there are 32 entraining elements (3) which are situated in the second part of their orbital path.
  • one entraining element (3) has the following dimensions: length: 3 m; width: 0.75 m; thickness: 1.5 mm.
  • one side of an entraining element has a surface area of 2.25 m 2 .
  • the total drying surface of the device is formed by these 32 plates.
  • the dimensions of the entraining elements can be greater or smaller or the number of entraining elements (3) of the device can be higher (e.g. 60 or 80) or lower (e.g. 25 or 35).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Claims (7)

  1. Vorrichtung (1) zum Trocknen eines wasserhaltigen Gemischs, umfassend mindestens einen Körper (2), der eine Zahl von plattenförmigen Mitnahmeelementen (3) umfasst, die sich entlang ungefähr der gesamten Länge der Vorrichtung (1) erstrecken und die auf derartige Weise ausgeführt sind, dass sie einen Teil des Gemischs mitnehmen, wobei es sich bei dem Körper um einen Rotor handelt, der um eine mittlere Achse (8) drehbar ist, sodass die plattenförmigen Mitnahmeelemente (3) entlang einer geschlossenen Umlaufbahn bewegt werden können und sich während eines ersten Teils der Umlaufbahn in dem Gemisch befinden und sich während eines zweiten Teils der Umlaufbahn außerhalb des Gemischs befinden, dadurch gekennzeichnet, dass die plattenförmigen Mitnahmeelemente (3) auf fächerförmige Weise und auf gekrümmte Weise in der Drehrichtung (R) des Körpers (2) an diesem Körper (2) fest angeordnet sind.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Vorrichtung Lüftungsmittel zum Erzeugen eines auf die Vorrichtung gerichteten Luftstroms (L) umfasst, um das mitgenommene Gemisch während des zweiten Teils ihrer Umlaufbahn zu trocknen.
  3. Vorrichtung (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich die plattenförmigen Mitnahmeelemente (3) im Wesentlichen entlang der mittleren Drehachse erstrecken.
  4. Vorrichtung (1) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Körper (2) zwei Seitenwände (4) umfasst, wobei die plattenförmigen Mitnahmeelemente (3) jeweils mit beiden Seitenwänden verbunden sind.
  5. Vorrichtung (1) nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass der Körper (2) in einem Gehäuse (5) bereitgestellt ist, wobei das Gehäuse (5) einen Einlass und einen Auslass für den von den Lüftungsmitteln erzeugen Luftstrom (L) umfasst.
  6. Vorrichtung (1) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung (1) Antriebsmittel (6) für den Körper (2) umfasst.
  7. Vorrichtung (1) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung (1) einen Speicherbehälter (7) für das wasserhaltige Gemisch umfasst.
EP09153726.6A 2008-02-27 2009-02-26 Vorrichtung zur Trocknung eines wasserhaltigen Gemisches Active EP2096394B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09153726T PL2096394T5 (pl) 2008-02-27 2009-02-26 Urządzenie do suszenia mieszaniny zawierającej wodę

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2008/0113A BE1017939A3 (nl) 2008-02-27 2008-02-27 Inrichting voor het drogen van een waterhoudend mengsel.

Publications (3)

Publication Number Publication Date
EP2096394A1 EP2096394A1 (de) 2009-09-02
EP2096394B1 true EP2096394B1 (de) 2013-08-28
EP2096394B2 EP2096394B2 (de) 2016-11-30

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ID=40139316

Family Applications (1)

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EP09153726.6A Active EP2096394B2 (de) 2008-02-27 2009-02-26 Vorrichtung zur Trocknung eines wasserhaltigen Gemisches

Country Status (7)

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EP (1) EP2096394B2 (de)
BE (1) BE1017939A3 (de)
DE (1) DE202009018720U1 (de)
DK (1) DK2096394T4 (de)
ES (1) ES2436797T5 (de)
PL (1) PL2096394T5 (de)
PT (1) PT2096394E (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014016150A1 (de) 2014-11-04 2016-05-04 Tanja Droste Vorrichtung zum Eindampfen einer Suspension

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015105780U1 (de) 2015-10-30 2015-11-11 Josef Fliegl jun. Trocknungsvorrichtung
BE1027387B1 (nl) 2019-07-19 2021-03-05 Spiessens Bvba Verbeterde inrichting voor het drogen van een waterhoudend mengsel
DE202022102484U1 (de) * 2022-05-06 2022-06-01 FLIEGL AGRARTECHNIK GmbH Trocknungsvorrichtung
DE202022102483U1 (de) * 2022-05-06 2022-06-01 Fliegl Agrartechnik Gmbh Trocknungsvorrichtung

Family Cites Families (16)

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BE663158A (de) *
BE372959A (de) *
BE464599A (de) *
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DE17571C (de) † G. v. GOERNE, Major a. D. in Hangelsberg Neuerung an Apparaten zum Trocknen von Braunkohlenklein
DE44624C (de) * 1883-10-25 1888-09-21 LANGEN & HUNDHAUSEN in Grevenbroich Verdampfungs- oder Condensations-Apparat
DE513660C (de) † 1927-09-16 1930-12-02 Aonyme Pour L Utilisation Des Mit Mahlkoerpern ausgestattete Trockentrommel
DE731184C (de) * 1937-09-12 1943-02-03 Friedrich Haas Kom Ges Maschf Trockner fuer breiige und fluessige Stoffe
DE1804154B2 (de) † 1968-10-19 1976-12-16 Klöckner-Humboldt-Deutz AG, 5000Köln Rieseleinbauten einer drehtrommel, insbesondere fuer trommeltrockner
US4269719A (en) * 1979-08-13 1981-05-26 Morio Yamamoto Slurry dehydrating apparatus
DE3132950A1 (de) † 1981-08-20 1983-03-03 Karl-Heinz Wenz KG, 4050 Mönchengladbach Vorrichtung zum entwaessern und/oder trocknen von schuettgut
FR2645042B1 (fr) * 1989-03-29 1991-06-07 Jagoueix Robert Concentrateur en couches minces dans gaz neutre ou air deshydrate pour produits visqueux et sensibles
US5203693A (en) † 1991-10-01 1993-04-20 Astec Industries, Inc. Rotary drum dryer having internal flights
DE19631998C1 (de) † 1996-08-08 1997-10-09 Buettner Ges Fuer Trocknungs U Drehtrommel zum Trocknen von rieselfähigem Gut
US6007782A (en) * 1996-09-11 1999-12-28 Arteva North America S.A.R.L. Reactor with a flexurally rigid stirrer element
FR2874605B1 (fr) * 2004-08-24 2007-07-20 Degremont Sa Dispositif pour le retournement et la translation d'un materiau pateux ou granuleux

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014016150A1 (de) 2014-11-04 2016-05-04 Tanja Droste Vorrichtung zum Eindampfen einer Suspension

Also Published As

Publication number Publication date
DE202009018720U1 (de) 2012-11-27
BE1017939A3 (nl) 2009-12-01
PL2096394T3 (pl) 2014-02-28
EP2096394B2 (de) 2016-11-30
PL2096394T5 (pl) 2019-04-30
PT2096394E (pt) 2013-12-03
EP2096394A1 (de) 2009-09-02
ES2436797T3 (es) 2014-01-07
DK2096394T4 (en) 2017-02-27
ES2436797T5 (es) 2017-06-12
DK2096394T3 (da) 2013-12-09

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