EP2805631A1 - Séchoir à tambour pour le séchage de tabac et procédé de séchage correspondant - Google Patents

Séchoir à tambour pour le séchage de tabac et procédé de séchage correspondant Download PDF

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Publication number
EP2805631A1
EP2805631A1 EP14168013.2A EP14168013A EP2805631A1 EP 2805631 A1 EP2805631 A1 EP 2805631A1 EP 14168013 A EP14168013 A EP 14168013A EP 2805631 A1 EP2805631 A1 EP 2805631A1
Authority
EP
European Patent Office
Prior art keywords
lifting blades
drum
dryer according
drum dryer
attack
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.)
Withdrawn
Application number
EP14168013.2A
Other languages
German (de)
English (en)
Inventor
Dietmar Zielke
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.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
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
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Publication of EP2805631A1 publication Critical patent/EP2805631A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a drum dryer for drying tobacco, comprising a rotatably mounted drum having a drum body and a plurality of projecting into the drum body lifting blades.
  • the invention further relates to a drying method using such a drum dryer.
  • Conventional drum dryers are used for drying cut tobacco.
  • the tobacco is dried by heated blades and heated air.
  • the transport of the tobacco through the drum is carried out by lifting the tobacco by means of lifting blades and subsequent falling in the drum.
  • the tobacco falls through a slowly flowing air flow, whereby the vaporized water is transported out with the air.
  • the tobacco drops from a certain drop height and with a certain fall path.
  • a drum dryer with a plurality of heat medium through, arranged on the inside of the jacket wall lifting blades is for example from EP 1 929 888 A1 known.
  • the object of the invention over the known prior art is to provide a tumble dryer which enables more effective drying of the tobacco.
  • the lifting blades with different axial and / or radial lengths and / or different angles of attack relative to the drum body of the tobacco falls down at several positions and in several ways through the drum.
  • Due to the plurality of fall paths or tobacco cases results in a flat case characteristic that covers a considerable part of the cross-sectional area of the interior of the drum.
  • the tobacco falls substantially distributed over the entire diameter or the entire volume of the drum and results in an increase in the contact between tobacco and process air.
  • the drum volume is better utilized and there is a better distribution of falling tobacco through the process air flowing inside the drum. This leads to a uniform, better mixing and thus to a more uniform, more effective drying of the tobacco.
  • a drum dryer for drying tobacco or tobacco mixtures comprises a rotatably mounted drum 10 with a drum body 11, which is designed in particular cylindrical, whereby not only circular cross sections, but also, for example, polygonal or polygonal cross sections are included.
  • the drum 10 has not shown outer shell and end walls. In the interior of the drum 10 or of the drum body 11, a drying space 12 is thus formed for the tobacco to be dried.
  • the rotary bearing for the drum 10 and means for rotating the drum 10 in the drying operation are not shown in the figures.
  • the direction of rotation of the drum 10 in the drying operation is exemplified in the figures in the clockwise direction.
  • the drum dryer also has means not shown, in particular a circuit, for generating a hot air flow through the interior of the drum 10 during the drying operation, namely, ducts, fans, heaters, rotary joints and the like.
  • lifting blades 13 On the inner circumference of the drum body 11 a plurality of projecting into the drying chamber 12 lifting blades 13 is provided.
  • the lifting blades 13 are distributed uniformly over the circumference of the drum body 11 in the embodiments shown. However, it may be advantageous in other embodiments to arrange the lifting blades 13 unevenly distributed over the circumference of the drum body 11.
  • the lifting blades 13 take the tobacco to be dried due to the rotation of the drum 10.
  • the tobacco entrained by the lifting blades 13 falls back to the ground from a certain lifting height, which depends on different parameters, such as rotational speed of the drum 10, shape and positioning of the lifting blades 13, shape and positioning of any edge parts 16 (see description below), etc. the drum 10 back. In this way, there is a certain discharge characteristic 14 for the discarded by the lifting blades tobacco, see Fig. 1 to Fig. 3 , This will be explained in more detail below.
  • the lifting blades 13 or surfaces of the lifting blades 13 are preferably heatable.
  • the lifting blades 13 have for this purpose preferably by a hot fluid, such as hot water or steam, through-flowable cavities.
  • the drum dryer advantageously has means, not shown, for generating a hot fluid flow through the lifting blades 13 during the drying operation, in particular in a circuit, namely lines, pumps, heaters, rotary joints and the like.
  • the lifting blades 13 may alternatively be electrically heated, for example.
  • the lifting blades 13 have different axial and / or radial lengths and / or different angles of incidence relative to the drum body 11.
  • the lifting blades 13 have on the one hand different (here radial) lengths relative to the drum body.
  • pairs 13a, 13b, 13c, 13d (alternatively triple, quadruple, etc.) of lifting blades of the same radial length and with the same angle of attack are provided.
  • the lifting blades 13 accordingly have different lengths and / or angles of attack in groups.
  • the lifting blades 13a, 13b, 13c, 13d are advantageously arranged in repeating sequences, here for example (13a, 13b, 13c, 13d), (13a, 13b, 13c, 13d).
  • the lifting blades 13a and 13c for example, have the largest radial length.
  • the lifting blades 13b have, for example, a mean radial length.
  • the lifting blades 13d have, for example, the smallest radial length.
  • the length of the longest blades 13a, 13c is preferably more than one and a half times, for example, about twice as large as the length of the shortest blades 13d.
  • the lifting blades 13 have different angles of incidence relative to the drum body 11.
  • the lifting blades 13a, 13d are not inclined, ie have an angle of attack of zero against the normal to the inner wall of the drum.
  • the lifting blades 13b are inclined in the clockwise direction against the fictitious, pointing to the center of the drum Normal, ie have a positive angle of at least 10 °, for example, about 15 °.
  • the lifting blades 13c are inclined in the counterclockwise direction against the normal, ie have a negative angle of at least 10 °, more preferably at least 20 °, for example about 25 °.
  • the most different, here positive and negative, inclined blades 13b, 13c preferably have a pitch angle difference of at least 10 °, more preferably at least 20 °, even more preferably at least 30 °, here for example about 40 °.
  • the tobacco falls significantly earlier from the blades 13b as compared to the blades 13c, which have a greater length and a negative angle of attack.
  • Fig. 1 shown.
  • the tobacco thus falls down at several positions and in several ways through the drum 10; in Fig. 1
  • four fall paths or tobacco cases are shown.
  • the tobacco falls substantially distributed over the entire diameter or the entire volume of the drum and results in an increase in the contact between tobacco and process air.
  • the drum volume is better utilized and there is a better distribution of falling tobacco through the process air flowing inside the drum. This leads to a uniform, better mixing and thus to a more uniform, more effective drying of the tobacco.
  • Fig. 2 is the 90 ° opposite the position in Fig. 1 rotated drum 10 shown. Due to the smaller radial length of the blades 13d, the tobacco falls off considerably earlier compared to the blades 13a, which have a larger radial length Have length. Also in this angular position thus results in a desired surface case characteristic 14th
  • the lifting blades 13 can be secured to the drum body 11 immovable. The desired discharge characteristic is then fixed.
  • the lifting blades 13 on the drum body 11 individually adjustable, for example, be pivotally mounted.
  • the lifting blades 13 may optionally be adjustable in length.
  • different discharge characteristics can be adjusted in particular depending on the application by adjusting the lifting blades.
  • the tobacco falling off from a particular blade falls on a blade having a different characteristic, ie a blade of a different length and / or a different angle of attack.
  • a blade having a different characteristic ie a blade of a different length and / or a different angle of attack.
  • the tobacco from the blade 13b is advantageously in the region of the blades 13a and 13d, while the tobacco from the blade 13c at least partially falls in the region of the blade 13b.
  • Fig. 2 The tobacco falls from the blade 13d mainly into the region of the blade 13c and from the blade 13a at least partially in the region of the blade 13b.
  • This advantageous arrangement prevents individual amounts of tobacco always go through the same path in the drum. Rather, it is achieved that the individual Tobacco sequentially through all fall paths in the drum, in the figures so times left, sometimes right drops, making a further homogenization of the mixture and drying.
  • FIG. 4 Further embodiments of a drum dryer according to the invention are in the Fig. 4 to Fig. 9 shown.
  • All lifting blades 13 different lengths and arranged with increasing in the clockwise radial blade length. All lifting blades 13 have an angle of attack of zero.
  • the embodiment according to Fig. 5 differs from the embodiment according to Fig. 4 in that the lifting blades 13 each have an angled or bendable edge part 16 at their free end.
  • the edge portions 16 may advantageously have different radial and / or axial lengths and / or different angles of attack relative to the blade bodies of the lifting blades 13, whereby the discharge behavior of the lifting blades 13 is also influenced individually.
  • Fig. 6 In the embodiment according to Fig. 6 are all lifting blades 13 radially equal length, but have different angles of attack (positive, negative and zero) on.
  • the embodiment according to Fig. 7 differs from the embodiment according to Fig. 6 in that the lifting blades 13 additionally have different radial lengths.
  • the embodiment according to Fig. 7 thus resembles the embodiment according to the Fig. 1 and Fig. 2 ,
  • Fig. 8 have all lifting blades 13 a constant, here negative angle of at least 10 °, preferably at least 20 °, and alternately different radial lengths.
  • a drum 10 has a plurality of axially offset, mutually different blade rings.
  • the lifting blades can have different axial lengths as an alternative or in addition to the different radial lengths and / or different angles of attack described above.

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  • Drying Of Solid Materials (AREA)
EP14168013.2A 2013-05-23 2014-05-13 Séchoir à tambour pour le séchage de tabac et procédé de séchage correspondant Withdrawn EP2805631A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013209607.0A DE102013209607A1 (de) 2013-05-23 2013-05-23 Trommeltrockner zum Trocknen von Tabak, und entsprechendes Trocknungsverfahren

Publications (1)

Publication Number Publication Date
EP2805631A1 true EP2805631A1 (fr) 2014-11-26

Family

ID=50685832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14168013.2A Withdrawn EP2805631A1 (fr) 2013-05-23 2014-05-13 Séchoir à tambour pour le séchage de tabac et procédé de séchage correspondant

Country Status (3)

Country Link
EP (1) EP2805631A1 (fr)
CN (1) CN104172456A (fr)
DE (1) DE102013209607A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3163239A1 (fr) * 2015-10-30 2017-05-03 Fliegl Agrartechnik GmbH Sécheur
US20190093278A1 (en) * 2017-09-25 2019-03-28 Midea Group Co., Ltd. Laundry drying machine with adjustable baffle
CN109654838A (zh) * 2019-02-19 2019-04-19 扬州快乐机械有限公司 一种干燥机的分仓

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105455186B (zh) * 2016-01-21 2017-04-19 昆明船舶设备集团有限公司 旋转薄板阶梯式烟丝干燥系统
CN105639713A (zh) * 2016-04-14 2016-06-08 龙岩烟草工业有限责任公司 可调式耙钉、滚筒及耙钉调节方法
CN106307598A (zh) * 2016-09-26 2017-01-11 秦皇岛烟草机械有限责任公司 一种穿流筒式白肋烟烘干机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191228905A (en) * 1911-12-27 1913-06-12 Theodor Holtz Drying-cylinder.
GB502225A (en) * 1937-05-13 1939-03-14 Oscar Van De Putte Rotary drying apparatus for tobacco
WO1991006228A1 (fr) * 1989-11-03 1991-05-16 Gbe International Plc Ameliorations concernant les cylindres rotatifs de traitement du tabac
DE202008001800U1 (de) * 2008-02-08 2008-04-24 Heinen Drying Gmbh Vorrichtung zur Behandlung von Schüttgütern, insbesondere von Tabak
EP1929888A1 (fr) 2006-12-07 2008-06-11 Hauni Maschinenbau AG Séchoir à tambour de l'industrie de traitement du tabac

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE530272C (de) * 1929-03-28 1931-07-25 Elsbeth Verw Zarniko Geb Witti Rieselraeder fuer Trocknung, Kuehlung, Lueftung und Mischung
CH199853A (de) * 1937-09-29 1938-09-15 Jenny Heinrich Ing Dr In sich bewegenden Behältern angebrachte Vorrichtung zum Mitnehmen und Ausbreiten von im Behälter befindlichem, zu behandelndem Gut.
US3717937A (en) * 1971-04-19 1973-02-27 S Thompson Flighting for dehydrator drum
DE19631998C1 (de) * 1996-08-08 1997-10-09 Buettner Ges Fuer Trocknungs U Drehtrommel zum Trocknen von rieselfähigem Gut
DE10201506A1 (de) * 2002-01-17 2003-07-31 Asa Anlagentechnik Service Ana Scharnierwurfschaufeln
CN201319848Y (zh) * 2008-12-04 2009-10-07 安徽中烟工业公司 烘丝机炒料筒
CN202232943U (zh) * 2011-10-19 2012-05-30 江苏智思机械集团有限公司 烟草物料复烤设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191228905A (en) * 1911-12-27 1913-06-12 Theodor Holtz Drying-cylinder.
GB502225A (en) * 1937-05-13 1939-03-14 Oscar Van De Putte Rotary drying apparatus for tobacco
WO1991006228A1 (fr) * 1989-11-03 1991-05-16 Gbe International Plc Ameliorations concernant les cylindres rotatifs de traitement du tabac
EP1929888A1 (fr) 2006-12-07 2008-06-11 Hauni Maschinenbau AG Séchoir à tambour de l'industrie de traitement du tabac
DE202008001800U1 (de) * 2008-02-08 2008-04-24 Heinen Drying Gmbh Vorrichtung zur Behandlung von Schüttgütern, insbesondere von Tabak

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3163239A1 (fr) * 2015-10-30 2017-05-03 Fliegl Agrartechnik GmbH Sécheur
WO2017162430A3 (fr) * 2015-10-30 2017-11-16 Fliegl Agrartechnik Gmbh Dispositif de dessiccation
US10473395B2 (en) 2015-10-30 2019-11-12 Fliegl Agrartechnik Gmbh Drier
RU2736973C2 (ru) * 2015-10-30 2020-11-23 Флигль Аграртехник Гмбх Сушильное устройство
US20190093278A1 (en) * 2017-09-25 2019-03-28 Midea Group Co., Ltd. Laundry drying machine with adjustable baffle
US10487441B2 (en) 2017-09-25 2019-11-26 Midea Group Co., Ltd. Laundry drying machine with adjustable baffle
CN109654838A (zh) * 2019-02-19 2019-04-19 扬州快乐机械有限公司 一种干燥机的分仓
CN109654838B (zh) * 2019-02-19 2024-02-27 扬州快乐机械有限公司 一种干燥机的分仓

Also Published As

Publication number Publication date
CN104172456A (zh) 2014-12-03
DE102013209607A1 (de) 2014-11-27

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