US3310059A - Apparatus for removing the ribs from tobacco leaves or the like material and classifying same - Google Patents

Apparatus for removing the ribs from tobacco leaves or the like material and classifying same Download PDF

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Publication number
US3310059A
US3310059A US399738A US39973864A US3310059A US 3310059 A US3310059 A US 3310059A US 399738 A US399738 A US 399738A US 39973864 A US39973864 A US 39973864A US 3310059 A US3310059 A US 3310059A
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United States
Prior art keywords
section
beating
ribs
air separator
separating
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Expired - Lifetime
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US399738A
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English (en)
Inventor
Grinzinger Josef
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.)
A Heinen GmbH Maschinenfabrik
Maschinenfabrik und Eisengiesserei A Heinen GmbH
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A Heinen GmbH Maschinenfabrik
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B5/00—Stripping tobacco; Treatment of stems or ribs
    • A24B5/10—Stripping tobacco; Treatment of stems or ribs by crushing the leaves with subsequent separating

Definitions

  • This invention relates to apparatus for removing the ribs from tobacco leaves and separating by air classification the deribbed parts of the leaves from the mixture formed by such parts and the ribs.
  • Such apparatus comprise one or more drums fitted with beating teeth of different shapes and-since they operate On the principle of a disintegratorsurrounded by beater baskets rotatable relative thereto. Relative to the feeding direction of the leaves these drums rotate either with forward or reverse motion and their speed can be adapted to any individual case.
  • the mixture produced by the deribbing process and consisting of the deribbed leaf parts and of the ribs separated therefrom will be fed by belt conveyors or pneumatically to an air separator arranged in series therewith.
  • the deribbed leaf parts will be separated from the ribs and the oversized material composed of ribs and not yet sufficiently comminuted leaves or ribs, respectively, which are still adhered to by leaf parts will be recirculated into the deribbing device and further disintegrated during the following repeated treatment.
  • Deribbing is to be effected so that there remains as small as possible an amount of tobacco fines and dust which can hardly be utilized later on. This requirement is not met or at least not in a fully satisfactory manner, by the known apparatus.
  • the present invention provides an apparatus for deribbing tobacco leaves and subsequently treating the mixture of deribbed leaf parts and ribs and stems, which operates according to the initially specified principle and by which, on the one hand, the quota of fines produced is reduced and, on the other hand and in conjunction therewith, also the efficiency of the air separation is improved at the same time by providing that a substantial part of leaf components that should be fed to further treatment immediately subsequent to air separation is reintroduced in the circuit.
  • the invention proposes to subdivide the deribbing device, which is provided with an impeller fitted with beating teeth, into two seriesconnected, differently-working sections, viz. a first section in which the tobacco leaves are merely subjected to a separating action and a following section in which the tobacco leaves are subjected in the hitherto customary manner to a beating action, the leaf parts completely separated from the ribs and stems in the first section being directly fed from this latter to an air separator so that only the ribs and stems with the leaf parts still adhering thereto are subjected to the subsequent beating treatment and the material resulting from this latter treatment is handled separately by a special air separator.
  • the greater part of the derib- Patented Mar. 21, 1967 bed leaf parts is thus Withdrawn from the beating treatment and in this way prevented from being undesirably disintegrated.
  • the two mentioned sections are defined by a casing, in which the beating tools rotate, and separated from each other by a connection to the first air separator.
  • the first section of the machine which in the following will be referred to as the separating section, may have for separating tools a hight-adjustable and, if desired, completely removable comb bridge suspended in the interior of the casing in the upper regions thereof immediately adjacent the feed point, which comb bridge has fastened to its inside, a plurality of rows of stationary comb-s constituting the separating tools proper.
  • the rows of combs may be replaced by rotatable separating discs having the function of keeping the separating edges free from deposits, particularly in the case of heavily moistened tobaccoes.
  • the rotating separating discs moreover, oppose the centrifugal force acting on the tobacco leaves and thus assist the separation.
  • the second section of the machine which hereinafter will be referred to as the beating section, follows the first or separating section in circumferential direction and extends close up to the feed point.
  • This beating section which now contains only material consisting for the greater part of ribs, is surrounded by the bar shell forming the beater basket and connected to a second air separator.
  • This stagewise disintegrating treatment including a first or careful stage and a second or intensified stage, and the direct separation of the pure leaf parts stripped off in the first stage results in an extraordinary reduction of the amount of fines, which need not be explained further, and, moreover, in a substantially improved separating action in the beating section since there the action of the beating tools is no longer impaired by the presence of a large part of pure leaf material.
  • the feeding of the tobacco leaves to be treated into the disintegrating device or into the separating section of same is effected so that the tobacco leaves enters as far as possible the interior of the impeller and, sliding outwardly on the beating teeth under the action of centrifugal force, are subjected to the action of the rows of combs or separating discs of the comb bridge which begins immediately above the feed opening for the tobacco leaves, to be stripped off the ribs by the comb rows or separating discs.
  • the two air separators one of which is fed with the separated leaf material while the other one is fed with the heavily-rib-containing material from the beating section, may be of any desired design.
  • the air separators are conveniently so constructed that they effect stepwise preliminary and after-classification.
  • the air separators which are preferably used by the invention, consist of two turbulence chambers arranged in tandem in symmetrically superimposed staggered relation.
  • the first air separator is mounted above the deribbing machine on a connection pipe fastened thereto and the wall of this pipe ascends at an inclination and is so curved that the material to be classified is retarded during its upward travel along this wall and thus starts to revolve when entering the separating chamber, which motion is particularly advantageous for the classification under the action of the air flowing through this chamber.
  • This design results in a double effect due, on the one hand, to the different retardations to which the leaf parts are subjected in dependence on their size and, on the other hand, to their form drag in the air current, the afterclassification being effected at reduced air and particle speeds in the second turbulence chamber arranged above and in series with the first one and generally having the same shape.
  • the oversized material from the first air separator falls through appropriately shaped guide threads into a bucket wheel sluice closing the classifying or separating chamber at the bottom and from the bucket wheel sluice into the beating section of the disintegrating device arranged therebelow.
  • the air separator for handling the material treated in the beating section is on principle of the same design and connected through a pipe to the casing in a place below the bar shell of the beating section.
  • the oversized material from this air separator is discharged through a bucket wheel sluice and either fed for after-treatment to a further air separator or, in accordance with another embodiment of the invention, to an after-deribbing device of a known type associated with a further air separator connected in series therewith, for repeated treatment.
  • FIG. 1 is a diagrammatic vertical section through an apparatus according to the invention, all details not necessary for the understanding of the invention having been omitted;
  • FIG. 2 is a similar view showing another embodiment of the rib removing means.
  • FIG. 3 is a top plan view of the rib removing means of FIG. 2.
  • the numeral 1 generally designates a rib-removing machine.
  • This machine includes a casing in which a beater basket 4 of arcuate cross section is accommodated and an impeller 3 carrying beating teeth is arranged to rotate at preferably variable speed in the direction of feeding the material to be treated.
  • the circumferential region covered by the impeller 3 carrying the beating teeth is subdivided into a separating section designated by A which extends directly behind the feeding station in the direction of travel of the impeller, and a beating section designated by B which is formed by the beater basket 4 and extends as far as the feeding station.
  • A which extends directly behind the feeding station in the direction of travel of the impeller
  • B which is formed by the beater basket 4 and extends as far as the feeding station.
  • Between these two sections there are provided a connection pipe 5 leading to an air separator 2 and a return pipe 6 coming from the air separator 2 and opening into the machine shortly before the beating section B.
  • the working tool of the separating section A consists according to the embodiment shown in FIG. 1 of an adjustable and completely removable comb bridge 16 which is carried by suspension devices 11 and 12. Arrows indicated in the suspension devices in FIG. 1 show the possibilities of adjusting the comb bridge it Feeding of the tobacco leaves to be treated into the device is effected by means of a conveyor 7 of any desired suitable construction in the direction indicated by the arrow shown in FIG. 1.
  • the impeller 3 arranged to rotate in the direction of feeding the material has spokes 8 carrying the beating teeth 9 and extending somewhat eccentrically with respect to the impeller axis.
  • the tobacco leaves drop far into the interior of the impeller 3 "before they are flung outwardly by the action of centrifugal force and are first retained on the beating teeth of the impeller due to the peripheral speed of the beating teeth while passing through the rows of the combs or separating discs 34 (FIGS. 2 and 3) of the comb bridge which strip leaf parts off the stems and ribs of the leaves.
  • the deribbed leaf parts are passed under the action of a suction air stream through the connection pipe 5 into the air separator 2.
  • the air separator 2 consists according to the preferred embodiment shown in FIG. 1 of two turbulence chambers 14 and 15 arranged in tandem in superimposed staggered relation.
  • FIG. 1 Arrows shown in FIG. 1 indicate the direction of movement of the material passing through these two turbulence chambers having the function already explained above.
  • the fine deribbed leaf parts are drawn off through a pipe 21 and a conventional tobacco sluice whereas the oversized material is again introduced into the machine through a bucket-wheel sluice 16 and the return pipe 6 at a point situated in front of the beating section B in the direction of travel of the impeller 3.
  • connection pipe 5 has such a curvature that the stripped-off material is directed in the direction of arrows shown in FIG. 1 along an obliquelyupwardly-extending wall 13 of the first turbulence chamber 14 and a curved wall 22' ⁇ following thereto and is decelerated thereby so that a turbulent motion is imparted to the material which is particularly advantageous for subjeCting the material to a classifying action.
  • Flaps 17 and 18 serve for air regulation.
  • the numerals 19 and 22 designate drive means or driving motors for the bucket-wheel sluice 16 and the impeller 3, respectively, which may be variable if desiredc
  • the material further treated in the beating section B passes through a hopper 23 and a suction pipe 24 into a second air separator 25 which is fundamentally of the same construction as the first air separator 2, i.e. has two turbulence chambers 26 and 27 arranged in tandem.
  • the leaf parts separated in this second air separator 25 are drawn off from the upper region of the air separator through a pipe
  • the oversized material is discharged through a bucket-wheel sluice 2?
  • a mechanism 39 for the ultimate removal of ribs which is connected through a channel 31 to a further air separator 32.
  • An apparatus for removing ribs from tobacco leaves and classifying by air separation the leaf parts separated from ribs and stems comprising a rib-removing machine including an impeller fitted with heating teeth and a beater basket cooperating with said impeller, said rib-removing machine having a separating section and a beating section following said separating section and formed by said heater basket, a first air separator connected to said ribremoving machine between said separating section and said heating section and receiving the deribbed leaf parts stripped-off in the separating section of the rib-removing machine, and a second air separator connected to the beating section of the rib-removing machine, the oversized leaf parts remaining over after separation being reintroduced at least from said first air separator in the region between the separating section and the beating section into the rib-removing machine.
  • separating section of the rib-removing machine includes separating tools comprising an adjustable comb bridge which directly follows the point where the leaves are fed into the apparatus and to which the leaves can be raised by the impeller rotatable in the direction of feeding the leaves, spokes being provided on the impeller and carrying the beating teeth.
  • connection pipe connects the separating section with the first air separator and at least the first air separator comprises two turbulence chambers arranged in symmetrically superimposed staggered relation and connected to the connection pipe.

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  • Manufacture Of Tobacco Products (AREA)
US399738A 1963-09-30 1964-09-28 Apparatus for removing the ribs from tobacco leaves or the like material and classifying same Expired - Lifetime US3310059A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0073698 1963-09-30

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US (1) US3310059A (xx)
DE (1) DE1432577B1 (xx)
GB (1) GB1023725A (xx)
NL (1) NL131889C (xx)
SE (1) SE300188B (xx)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3401701A (en) * 1965-06-11 1968-09-17 Seita Process and means for separating the parenchyma from lignacious parts of vegetable leaves and in particular tobacco
US3410280A (en) * 1965-09-03 1968-11-12 Hauni Werke Koerber & Co Kg Method and apparatus for separating tobacco leaf laminae from tobacco ribs
US3450139A (en) * 1964-01-14 1969-06-17 Seita Device for separating the parenchyma from the woody portions of plant leaves and,in particular,tobacco leaves
US3513858A (en) * 1965-11-03 1970-05-26 Seita Process for stemming tobacco leaves
US3624748A (en) * 1967-12-18 1971-11-30 Mauritz L Strydom Cigarette making
US3899139A (en) * 1972-09-04 1975-08-12 Osaka Gas Co Ltd Crushing apparatus
US4083499A (en) * 1976-11-15 1978-04-11 Philip Morris Incorporated Cigarette package ripper with recycling air leg
FR2468315A1 (fr) * 1979-06-11 1981-05-08 Brown & Williamson Tobacco Procede et dispositif de separation des veines du limbe d'une feuille de tabac
US4323083A (en) * 1979-06-11 1982-04-06 Brown & Williamson Tobacco Corporation Method for separating veins from lamina of tobacco leaf
US4328816A (en) * 1979-06-11 1982-05-11 Brown & Williamson Tobacco Corporation Process for improving the fill power of reconstituted tobacco
US4566639A (en) * 1984-08-27 1986-01-28 Williams Patent Crusher And Pulverizer Company Center feed material grinding mill
WO1995033566A1 (en) * 1994-06-06 1995-12-14 Irwin Research & Development Inc. An improved apparatus for comminuting solid waste materials
US5836527A (en) * 1994-06-06 1998-11-17 Irwin Research & Development Apparatus for comminuting solid waste materials
US5860607A (en) * 1997-01-08 1999-01-19 Irwin Research & Development, Inc. Apparatus for comminuting waste materials having screw delivery features
US5893523A (en) * 1997-06-13 1999-04-13 Irwin Research & Development, Inc. Apparatus for comminuting waste materials having feed roll delivery features
US6357680B1 (en) 1999-06-16 2002-03-19 Jere F. Irwin Self-feeding comminuting apparatus having improved drive motor features
US6446888B1 (en) * 2000-11-08 2002-09-10 Robert M. Williams, Sr. Grinding apparatus with vertical static separators
US6644573B2 (en) 2001-06-18 2003-11-11 Jere F. Irwin Comminuting apparatus and pneumatic recirculation systems for comminuting apparatus
US6644570B1 (en) 1999-10-15 2003-11-11 Jere F. Irwin Downstream pneumatic recirculation comminuting apparatus
CN103263074A (zh) * 2013-06-11 2013-08-28 红塔烟草(集团)有限责任公司 一种高效节能打叶风分工艺及设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US96257A (en) * 1869-10-26 Chaeles m u l l e e
US2150493A (en) * 1935-10-25 1939-03-14 Formator Ab Device for disintegrating tobacco leaves
US2667174A (en) * 1947-11-28 1954-01-26 American Machine Dev Corp Apparatus and method for ripping and assorting tobacco leaves
GB864367A (en) * 1958-03-19 1961-04-06 Mignot & De Block Nv Improvements in and relating to machines for threshing and winnowing tobacco
US3200947A (en) * 1960-10-04 1965-08-17 Hauni Werke Koerber & Co Kg Apparatus for separating tobacco and the like material
US3245415A (en) * 1960-12-16 1966-04-12 Hauni Werke Koerber & Co Kg Tobacco processing machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1625953A (en) * 1925-07-23 1927-04-26 Banting Mfg Company Thrashing machine
GB463583A (en) * 1935-10-03 1937-04-02 Int Cigar Mach Co Improvements in and relating to mechanism for winnowing disintegrated tobacco leaves
US2755930A (en) * 1951-04-06 1956-07-24 American Mach & Foundry Tobacco and dust separating apparatus
BE576651A (fr) * 1958-03-19 1959-07-01 Mignot & De Block Nv Procédé pour l'écôtage de feuilles de tabac et dispositif pour l'application de ce procédé.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US96257A (en) * 1869-10-26 Chaeles m u l l e e
US2150493A (en) * 1935-10-25 1939-03-14 Formator Ab Device for disintegrating tobacco leaves
US2667174A (en) * 1947-11-28 1954-01-26 American Machine Dev Corp Apparatus and method for ripping and assorting tobacco leaves
GB864367A (en) * 1958-03-19 1961-04-06 Mignot & De Block Nv Improvements in and relating to machines for threshing and winnowing tobacco
US3200947A (en) * 1960-10-04 1965-08-17 Hauni Werke Koerber & Co Kg Apparatus for separating tobacco and the like material
US3245415A (en) * 1960-12-16 1966-04-12 Hauni Werke Koerber & Co Kg Tobacco processing machine

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3450139A (en) * 1964-01-14 1969-06-17 Seita Device for separating the parenchyma from the woody portions of plant leaves and,in particular,tobacco leaves
US3401701A (en) * 1965-06-11 1968-09-17 Seita Process and means for separating the parenchyma from lignacious parts of vegetable leaves and in particular tobacco
US3410280A (en) * 1965-09-03 1968-11-12 Hauni Werke Koerber & Co Kg Method and apparatus for separating tobacco leaf laminae from tobacco ribs
US3513858A (en) * 1965-11-03 1970-05-26 Seita Process for stemming tobacco leaves
US3624748A (en) * 1967-12-18 1971-11-30 Mauritz L Strydom Cigarette making
US3899139A (en) * 1972-09-04 1975-08-12 Osaka Gas Co Ltd Crushing apparatus
US4083499A (en) * 1976-11-15 1978-04-11 Philip Morris Incorporated Cigarette package ripper with recycling air leg
FR2468315A1 (fr) * 1979-06-11 1981-05-08 Brown & Williamson Tobacco Procede et dispositif de separation des veines du limbe d'une feuille de tabac
US4323083A (en) * 1979-06-11 1982-04-06 Brown & Williamson Tobacco Corporation Method for separating veins from lamina of tobacco leaf
US4328816A (en) * 1979-06-11 1982-05-11 Brown & Williamson Tobacco Corporation Process for improving the fill power of reconstituted tobacco
US4566639A (en) * 1984-08-27 1986-01-28 Williams Patent Crusher And Pulverizer Company Center feed material grinding mill
US5836527A (en) * 1994-06-06 1998-11-17 Irwin Research & Development Apparatus for comminuting solid waste materials
WO1995033566A1 (en) * 1994-06-06 1995-12-14 Irwin Research & Development Inc. An improved apparatus for comminuting solid waste materials
US5860607A (en) * 1997-01-08 1999-01-19 Irwin Research & Development, Inc. Apparatus for comminuting waste materials having screw delivery features
US5893523A (en) * 1997-06-13 1999-04-13 Irwin Research & Development, Inc. Apparatus for comminuting waste materials having feed roll delivery features
US6695239B2 (en) 1999-06-16 2004-02-24 Jere F. Irwin Self-feeding comminuting apparatus having improved recirculation features
US6357680B1 (en) 1999-06-16 2002-03-19 Jere F. Irwin Self-feeding comminuting apparatus having improved drive motor features
US7048215B2 (en) 1999-06-16 2006-05-23 Irwin Jere F Comminuting apparatus having screen and access tray
US20040159725A1 (en) * 1999-06-16 2004-08-19 Irwin Jere F. Comminuting device with access tray
US6644570B1 (en) 1999-10-15 2003-11-11 Jere F. Irwin Downstream pneumatic recirculation comminuting apparatus
US20040251348A1 (en) * 1999-10-15 2004-12-16 Irwin Jere F. Comminuting apparatus
US6969017B2 (en) 1999-10-15 2005-11-29 Irwin Jere F Comminuting apparatus
US6446888B1 (en) * 2000-11-08 2002-09-10 Robert M. Williams, Sr. Grinding apparatus with vertical static separators
US6644573B2 (en) 2001-06-18 2003-11-11 Jere F. Irwin Comminuting apparatus and pneumatic recirculation systems for comminuting apparatus
CN103263074A (zh) * 2013-06-11 2013-08-28 红塔烟草(集团)有限责任公司 一种高效节能打叶风分工艺及设备

Also Published As

Publication number Publication date
SE300188B (xx) 1968-04-08
NL131889C (xx) 1971-02-15
NL6411365A (xx) 1965-03-31
GB1023725A (en) 1966-03-23
DE1432577B1 (de) 1970-01-22

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