EP0519173B1 - Procédé pour le conditionnement en continu, notamment pour le conditionnement thermique de matière particulaire, de préférence matière particulaire végétale comme les céréales, les herbes, le tabac ou analogues - Google Patents

Procédé pour le conditionnement en continu, notamment pour le conditionnement thermique de matière particulaire, de préférence matière particulaire végétale comme les céréales, les herbes, le tabac ou analogues Download PDF

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Publication number
EP0519173B1
EP0519173B1 EP92106304A EP92106304A EP0519173B1 EP 0519173 B1 EP0519173 B1 EP 0519173B1 EP 92106304 A EP92106304 A EP 92106304A EP 92106304 A EP92106304 A EP 92106304A EP 0519173 B1 EP0519173 B1 EP 0519173B1
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EP
European Patent Office
Prior art keywords
process according
conditioning station
conditioning
jet
bulk material
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
EP92106304A
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German (de)
English (en)
Other versions
EP0519173A1 (fr
Inventor
Franz Dipl.-Ing. Sagemüller
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.)
Franz Sagemueller GmbH
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Franz Sagemueller GmbH
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Classifications

    • 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
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
    • 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
    • F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
    • F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
    • 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
    • F26B17/26—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by reciprocating or oscillating conveyors propelling materials over stationary surfaces; with movement performed by reciprocating or oscillating shelves, sieves, or trays

Definitions

  • the invention relates to a method for continuous conditioning, in particular thermal conditioning, such as cooling, heating, drying, damping and the like, of bulk goods, preferably vegetable bulk goods, such as cereals, herbs, tobacco or the like, in which the bulk goods along a closed tunnel-like Conditioning station leading transport track is continuously mechanically conveyed, and thereby exposed in the conditioning station to the action of an essentially gaseous heat transfer medium supplied to the conditioning station through at least one opening, which is sharply bundled as it passes the opening and through the bulk material against a ceiling of the conditioning station opposite the respective opening is emitted.
  • thermal conditioning such as cooling, heating, drying, damping and the like
  • German patent 24 02 538 for conditioning tobacco
  • steam is blown into a tunnel-like conditioning station in such a way that the tobacco is conveyed through the conditioning station in a floating manner on a cushion of steam and is thereby exposed to the action of the steam.
  • the known method has the disadvantage that an excess of steam is used to form the steam cushion is needed, which escapes into the environment as brothers.
  • the conditioning can hardly be influenced due to the excess steam. Areas remain within the bulk material to be treated which have hardly been exposed to the action of steam, while there may also be areas which have been excessively exposed to the action of the steam.
  • the heat transfer medium is displaced as a free jet through the bulk material while displacing the bulk material such that an all-round deflection of the jet is generated on the opposite ceiling that the deflected parts of the jet downward by the pumping action of the free jet and be sucked back into the effective area of the free jet and that the bulk material between the negative pressure area of the upward free jet and the positive pressure area of the downward parts of the jet in a right angle movement directed towards the free jet is compressed.
  • the compression that occurs advantageously brings about a reduction in the escape of the heat transfer medium from the conditioning station, since a compressed area of the bulk material can act like a plug closing the tunnel-like conditioning station.
  • the process according to the invention is particularly advantageous in that the transported bulk material can be used as a heat carrier, catalyst or active ingredient in a chemical reaction with respect to the blown-in medium.
  • An advantageous measure which has a particularly advantageous effect on the drying of bulk materials, is suctioning off the blown-in heat carriers loaded with moisture from the bulk material, dehumidifying the heat carriers and blowing them in again.
  • a compressor compressed and heated air are fed to a heat exchanger, in which cooling and dehumidification take place.
  • the dehumidified air can then be blown into the conditioning station in order to exert its effect on the bulk material.
  • the use of at least one of the walls of the conditioning station as a heat exchanger is particularly expedient because the heat released for cooling and dehumidification reaches the bulk material directly and without the supply of special external energy for its conditioning, e.g. Drying, contributes.
  • the tunnel-like conditioning station comprises a floor 1, a ceiling 2 and side walls 3 and 3 '(FIG. 2), only the side wall 3 being visible here.
  • An angle profile 4 is placed under the bottom 1.
  • the chamber 5 enclosed by the bottom 1 and the angular profile 4 can be charged with heat transfer medium.
  • the opening 6 shown here In the bottom 2 is the opening 6 shown here, which is designed as a Laval nozzle. Due to the excess pressure prevailing in the chamber 5 when the heat transfer medium is introduced, the heat transfer medium is pressed out of the opening 6.
  • Bulk material that is to be conditioned passes through the conditioning station in the channel delimiting by the floor 1, ceiling 2 and side walls 3, 3 'in the direction indicated by the arrow 7.
  • Mechanical conveyance takes place e.g. by vibratory conveying, for which purpose the entire conditioning station can be designed in the manner of a vibratory conveyor.
  • FIG. 2 shows a top view of the detail of the conditioning station according to FIG. 1 with the blanket removed. Openings 6, 6 'and 6' 'are arranged in a row transversely to the conveying direction indicated by arrow 7 through the conditioning station.
  • the free rays blown out of the openings which are directed perpendicularly out of the plane of the drawing, strike the ceiling, not shown, and are deflected radially in the direction of the arrows 10 on the ceiling.
  • the effective areas of the deflected parts of the free rays are indicated by circles 11 drawn in. Of course, the effective areas indicated by the circles 11 can also overlap.
  • a heat transfer medium heated air suitable for drying bulk goods, for example
  • the sharply focused heat transfer medium emerges from the openings 6 as a free jet 8 and, as described above, strikes the ceiling 2 of the conditioning station.
  • the free jet is blown from below through the upper run 13 of the conveyor belt designed as a sieve belt.
  • the angle profiles 4 visible under the openings 6 are again provided for the supply of the heat transfer medium.
  • FIG. 4 shows a view of the device according to FIG. 3 in the Section along the line IV-IV in Fig. 3.
  • the same components are denoted by the same reference numerals.
  • Fig. 4 shows that the air supplied by the compressor after cooling and dehumidifying and passing through the condensate drain 21 passes through a second heat exchanger 23, to which heat is added and, if necessary, condensate is discharged again, so that the Air to be blown dry and heated is entered into the conditioning station.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Preparation Of Fruits And Vegetables (AREA)

Claims (21)

  1. Procédé de conditionnement en continu, en particulier conditionnement thermique tel que réfrigération, chauffage, dessiccation, humidification et analogues, de produits en vrac, de préférence produits végétaux en vrac, tels que céréales, herbes, tabac ou analogues, selon lequel lesdits produits en vrac sont transportés mécaniquement le long d'un convoyeur traversant un poste de conditionnement fermé du type tunnel, et sont exposé, à l'intérieur de ce poste de conditionnement, à un fluide caloporteur essentiellement sous forme gazeuse, acheminé à travers au moins un orifice (6, 6', 6''), ledit fluide étant fortement concentré lors de son passage à travers l'orifice (6, 6', 6'') et rejeté par les produits en vrac, contre un plafond (2) du poste de conditionnement, faisant face à l'orifice respectif (6, 6', 6''), caractérisé en ce que le fluide caloporteur, déplaçant les produits en vrac, est dirigé à travers ceux-ci sous la forme d'un jet libre (8), de telle manière que sur le plafond opposé (2) ledit jet (8) subit une dérive omni-directionnelle, en ce que les parties (10) dérivées du jet (8) sont aspirées vers le bas, et retournent dans la zone active du jet libre (8) de par son effet de pompe, et en ce que, entre la zone (9) à pression négative du jet libre (8) dirigé vers le haut et la zone de surpression des parties dudit jet (8) dirigé vers le bas, les produits en vrac sont compactés en un mouvement perpendiculaire au jet libre (8).
  2. Procédé selon la revendication 1, caractérisé en ce que les produits en vrac sont transportés par l'effet et à travers au moins un rideau formé par plusieurs jets libres (8) à l'intérieur du poste de conditionnement, et s'étendant transversalement au convoyeur (7).
  3. Procédé selon la revendication 2, caractérisé en ce que la distance entre deux orifices (6) qui se suivent dans la direction du transport (7) est choisie de telle manière qu'entre leurs jets libres (8) se forment les zones de compactage pour un poids en vrac déterminé et une pression choisie en conséquence.
  4. Procédé selon les revendications 1, 2 ou 3, caractérisé en ce que, dans le cas de la présence de plusieurs orifices (6, 6', 6''), le fluide caloporteur est conduit vers des orifices prédéterminés (6, 6', 6'') par des procédures d'ouverture et d'arrêt.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que, en cas de présence de plusieurs orifices (6, 6', 6'') disposés en rangées, le fluide caloporteur est amené vers des rangées prédéterminées par des procédures d'ouverture et d'arrêt.
  6. Procédé selon l'une des revendications 1 à 4, caractérisé en ce qu'en cas de présence de plusieurs orifices (6, 6', 6'') disposés en zones séparées, le fluide caloporteur est amené aux zones prédéterminées par des procédures d'ouverture et de fermeture.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que, pour servir de fluide caloporteur, on utilise de la vapeur.
  8. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que, pour servir de fluide caloporteur, on utilise de l'air.
  9. Procédé selon la revendication 8, caractérisé en ce que l'on amène à un échangeur de chaleur (22) de l'air comprimé par un compresseur et chauffé pendant cette opération, en ce que dans l'échangeur de chaleur (22), l'air est refroidi et déshydraté, et en ce que cet air déshydraté est amené au poste de conditionnement et mis en contact sous la forme de jets libres (8) avec les produits en vrac.
  10. Procédé selon la revendication 9, caractérisé en ce que l'air déshydraté est chauffé une nouvelle fois avant son introduction dans le poste de conditionnement au moyen d'un deuxième échangeur de chaleur (23).
  11. Procédé selon les revendications 9 et/ou 10, caractérisé en ce que l'air est aspiré du poste de conditionnement et reconduit vers le compresseur.
  12. Procédé selon l'une des revendications 8 à 11, caractérisé en ce que les parois (1, 2, 3, 3') du poste de conditionnement sont utilisées pour servir de surface d'échange de chaleur (22).
  13. Procédé selon l'une des revendications précédentes, caractérisé en ce que pour servir d'orifices (6), on utilise des injecteurs de Laval.
  14. Procédé selon l'une des revendications précédentes, caractérisé en ce que le poste de conditionnement est utilisé pour servir de transporteur à vibrations.
  15. Procédé selon l'une des revendications 1 à 13, caractérisé en ce que, pour servir de convoyeur, on utilise une goulotte à vibrations passant à travers le poste de conditionnement.
  16. Procédé selon l'une des revendications 1 à 13, caractérisé en ce que, pour servir de convoyeur, on utilise un tapis de convoyage passant à travers le poste de conditionnement.
  17. Procédé selon la revendication 16, caractérisé en ce que, pour servir de tapis de convoyeur, on utilise un tamis sans fin.
  18. Procédé selon les revendications 1 à 13 et 17, caractérisé en ce que des jets libres (8) sont soufflés d'en bas et traversent le tamis sans fin (13).
  19. Procédé selon les revendications 1 à 13 et 17, caractérisé en ce que des jets libres (8) orientés dans des directions antagonistes sont soufflés simultanément d'en bas et d'en haut vers le tamis sans fin (13).
  20. Procédé selon l'une des revendications 17 à 19, caractérisé en ce que des orifices (6, 6', 6'') émettant les jets libres (8), se déplacent en un mouvement de va-et-vient.
  21. Procédé selon la revendication 20, caractérisé en ce que les orifices (6, 6', 6'') se déplacent transversalement à la direction du transport du tamis sans fin (13).
EP92106304A 1991-06-15 1992-04-11 Procédé pour le conditionnement en continu, notamment pour le conditionnement thermique de matière particulaire, de préférence matière particulaire végétale comme les céréales, les herbes, le tabac ou analogues Expired - Lifetime EP0519173B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4119787 1991-06-15
DE4119787A DE4119787A1 (de) 1991-06-15 1991-06-15 Verfahren zum fortlaufenden konditionieren, insbesondere thermischen konditionieren, von schuettguetern, vorzugsweise pflanzlichen schuettguetern, wie getreide, kraeuter, tabak oder dergleichen

Publications (2)

Publication Number Publication Date
EP0519173A1 EP0519173A1 (fr) 1992-12-23
EP0519173B1 true EP0519173B1 (fr) 1996-03-13

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ID=6434029

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Application Number Title Priority Date Filing Date
EP92106304A Expired - Lifetime EP0519173B1 (fr) 1991-06-15 1992-04-11 Procédé pour le conditionnement en continu, notamment pour le conditionnement thermique de matière particulaire, de préférence matière particulaire végétale comme les céréales, les herbes, le tabac ou analogues

Country Status (6)

Country Link
EP (1) EP0519173B1 (fr)
AT (1) ATE135169T1 (fr)
DE (2) DE4119787A1 (fr)
DK (1) DK0519173T3 (fr)
ES (1) ES2086019T3 (fr)
GR (1) GR3020021T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19625338C2 (de) * 1996-06-25 2003-07-03 Hollstein Gmbh Lueftungs Klima Anlage zur Lagerung und Konditionierung von fasrigen Produkten, insbesondere von aufbereitetem Tabak
WO2005017431A1 (fr) 2003-08-19 2005-02-24 Bühler AG Procede et dispositif de sechage continu du riz
WO2010091141A2 (fr) * 2009-02-04 2010-08-12 George Holmes Séchoir à bande à faible impact
DE102017120626A1 (de) * 2017-09-07 2019-03-07 Hauni Maschinenbau Gmbh Konditionieren von Tabak
CN111578673A (zh) * 2020-06-09 2020-08-25 济源市阳光兔业科技有限公司 一种用于兔饲料生产的烘干设备
CN112539637B (zh) * 2020-12-11 2022-06-21 江苏长能节能新材料科技有限公司 连续干燥六羟甲基三聚氰胺的方法
CN114322460B (zh) * 2021-12-20 2022-09-06 湖南中医药大学 一种智能圆盘中药烘干机构

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AT195446B (de) * 1953-12-08 1958-02-10 Zellwolle Lenzing Ag Verfahren und Vorrichtung zum kontinuierlichen Kühlen oder Erwärmen oder zur kontinuierlichen chemischen Behandlung, insbesondere Sulfidierung von Alkalizellulose
DE1094078B (de) * 1956-12-22 1960-12-01 Miag Muehlenbau & Ind Gmbh Verfahren und Vorrichtung zum Vorbereiten von vorgewaermtem Getreide
US3229617A (en) * 1961-04-07 1966-01-18 Altman Russell Stacy Grain and bean cooker
US3198729A (en) * 1962-01-02 1965-08-03 Socony Mobil Oil Co Inc Continuous conversion of hydrocarbons with sensitive catalyst
DE2007588B2 (de) * 1970-02-19 1975-08-07 Holtz & Willemsen Gmbh, 4150 Krefeld Verfahren zur Behandlung von Leguminosesamen und Vorrichtung zur Durchführung dieses Verfahrens
DE2151844C2 (de) * 1971-10-19 1982-08-12 Hauni-Werke Körber & Co KG, 2050 Hamburg Verfahren und Vorrichtung zum Konditionieren von Tabak
US3861058A (en) * 1972-12-18 1975-01-21 California Pellet Mill Co Fluidized bed grain processor
US4109394A (en) * 1977-01-05 1978-08-29 Wolverine Corporation Material treatment system
DE3325967C2 (de) * 1983-07-19 1985-10-24 NEOTEC Gesellschaft für Nahrungsmittelverfahrenstechnik mbH & Co KG, 2000 Norderstedt Fördernde Wirbelschicht-Vorrichtung
DE3616630A1 (de) * 1986-05-16 1987-11-19 Krupp Polysius Ag Kuehlvorrichtung
JPS6352845A (ja) * 1986-08-20 1988-03-07 Shinmei Seisakusho:Kk 穀物の圧扁フレ−クの製造法及びその装置
DE3702768C2 (de) * 1987-01-30 1998-12-10 Sagemueller Franz Gmbh Vorrichtung zum Trocknen loser Schüttmengen feingeschnittener Pflanzenteile, insbesondere Tabak
DE3713763C2 (de) * 1987-04-24 1996-12-19 Hauni Werke Koerber & Co Kg Anordnung zum Konditionieren von Tabak oder ähnlichem faserförmigem Material

Also Published As

Publication number Publication date
GR3020021T3 (en) 1996-08-31
DE59205641D1 (de) 1996-04-18
EP0519173A1 (fr) 1992-12-23
DK0519173T3 (da) 1996-07-08
ES2086019T3 (es) 1996-06-16
DE4119787A1 (de) 1992-12-17
ATE135169T1 (de) 1996-03-15

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