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EP1501380B1 - Separator for shredded tobacco - Google Patents

Separator for shredded tobacco Download PDF

Info

Publication number
EP1501380B1
EP1501380B1 EP03747089A EP03747089A EP1501380B1 EP 1501380 B1 EP1501380 B1 EP 1501380B1 EP 03747089 A EP03747089 A EP 03747089A EP 03747089 A EP03747089 A EP 03747089A EP 1501380 B1 EP1501380 B1 EP 1501380B1
Authority
EP
European Patent Office
Prior art keywords
shredded tobacco
separator
tobacco
column
conveyor
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
EP03747089A
Other languages
German (de)
French (fr)
Other versions
EP1501380A1 (en
Inventor
Mario Martin
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.)
Comas SpA
Original Assignee
Comas SpA
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 Comas SpA filed Critical Comas SpA
Priority to SI200330141T priority Critical patent/SI1501380T1/en
Publication of EP1501380A1 publication Critical patent/EP1501380A1/en
Application granted granted Critical
Publication of EP1501380B1 publication Critical patent/EP1501380B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A24B1/00—Preparation of tobacco on the plantation
    • A24B1/04—Sifting, sorting, cleaning or removing impurities from tobacco

Definitions

  • This invention relates to a separator for shredded tobacco according to the preamble of claim 1.
  • a separator of this kind is already known from FR-A- 2543 456.
  • the processing of shredded tobacco comprises a separation stage in which the shredded tobacco is treated both to separate it from the air and to separate foreign bodies from it such as stones, tobacco agglomerations etc.
  • This stage is currently carried out using a separator consisting of a casing provided at its bottom with a rotary valve for discharging the tobacco and at its centre with a rotating mesh cylinder or other system for withdrawing the air to be fed to the filter.
  • the object of the invention is to eliminate these drawbacks by providing a device which enables the separation to be effected in a simple, comfortable and reliable manner, without the product undergoing "manipulation".
  • the separator of the invention comprises substantially a vertical column 2 of rectangular cross-section provided with a connector for an entry duct 4 for the shredded tobacco and a perforated plate 6 inclined towards a duct 8 for discharging waste such as stones, tobacco agglomerations, etc.
  • the column is connected at its bottom to a pipe 10 for feeding compressed air originating from a centrifugal blower 12.
  • a dome 14 housing a mesh conveyor 18 extending about drive and deviation rollers 20, a horizontal portion 22 of the conveyor 18 being positioned substantially to close the mouth of the column 2.
  • An air withdrawal hood 16 is present above the horizontal portion 22 of the conveyor 18.
  • the dome 14 presents an inclined lower part 24, the upper side of which can be adjusted so that it lies substantially in contact with the conveyor, its lower side being substantially in contact with a discharge belt 26.
  • a compressed air diffuser pipe 30 is provided facing that portion of the conveyor 18 downstream of the portion 22 which closes the mouth.
  • the separator of the invention operates in the following manner: the shredded tobacco fed by the conveyor belt 34 is transferred through the duct 4 to the interior of the column 2, where the suitably regulated compressed air flow feeds the tobacco particles towards the conveyor 18 while allowing the foreign bodies such as stones and tobacco agglomerations to deposit by gravity onto the perforated plate 6 and then descend towards the discharge duct 8.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

A separator for shredded tobacco has a column provided at its bottom with a perforated plate inclined towards a discharge duct. An entry duct for the shredded tobacco and a feed pipe for air propels the shredded tobacco upwards. The upper mouth of the column faces a mesh conveyor movable substantially transversely to the vertical axis of the column. The conveyor forms an element by which the upward rise of the shredded tobacco is halted and is conveyed towards a member for removing and conveying the tobacco.

Description

This invention relates to a separator for shredded tobacco according to the preamble of claim 1. A separator of this kind is already known from FR-A- 2543 456.
The processing of shredded tobacco comprises a separation stage in which the shredded tobacco is treated both to separate it from the air and to separate foreign bodies from it such as stones, tobacco agglomerations etc.
This stage is currently carried out using a separator consisting of a casing provided at its bottom with a rotary valve for discharging the tobacco and at its centre with a rotating mesh cylinder or other system for withdrawing the air to be fed to the filter.
This system results in tobacco degradation because of the rubbing of the tobacco against the separator wall and the fact that the product is withdrawn via the rotary valve.
The object of the invention is to eliminate these drawbacks by providing a device which enables the separation to be effected in a simple, comfortable and reliable manner, without the product undergoing "manipulation".
This and further objects which will be apparent from the ensuing description are attained according to the invention by a shredded tobacco separator as described in claim 1.
The invention is described in detail hereinafter with reference to the accompanying drawing showing a schematic vertical section through a separator according to the invention.
As can be seen from the drawing the separator of the invention comprises substantially a vertical column 2 of rectangular cross-section provided with a connector for an entry duct 4 for the shredded tobacco and a perforated plate 6 inclined towards a duct 8 for discharging waste such as stones, tobacco agglomerations, etc.
The column is connected at its bottom to a pipe 10 for feeding compressed air originating from a centrifugal blower 12.
At the upper end of the column there is provided a dome 14 housing a mesh conveyor 18 extending about drive and deviation rollers 20, a horizontal portion 22 of the conveyor 18 being positioned substantially to close the mouth of the column 2.
An air withdrawal hood 16 is present above the horizontal portion 22 of the conveyor 18.
The dome 14 presents an inclined lower part 24, the upper side of which can be adjusted so that it lies substantially in contact with the conveyor, its lower side being substantially in contact with a discharge belt 26.
A compressed air diffuser pipe 30 is provided facing that portion of the conveyor 18 downstream of the portion 22 which closes the mouth.
The separator of the invention operates in the following manner:
   the shredded tobacco fed by the conveyor belt 34 is transferred through the duct 4 to the interior of the column 2, where the suitably regulated compressed air flow feeds the tobacco particles towards the conveyor 18 while allowing the foreign bodies such as stones and tobacco agglomerations to deposit by gravity onto the perforated plate 6 and then descend towards the discharge duct 8.
At the same time those particles which reach the conveyor 18 deposit thereon and remain retained there along a short portion of the horizontal path as they are subjected to suction. As soon as the particles leave the region of influence of the suction they fall onto the inclined surface 22 with the help of the compressed air blowing from the diffuser, to be then transferred to the discharge belt 26.
From the aforegoing it is apparent that the separator of the invention enables the said stage to be effected easily and comfortably, without the product undergoing "manipulation".

Claims (3)

  1. A separator for shredded tobacco comprising a column (2) provided at its bottom with a perforated plate (6) inclined towards a discharge duct (8), and further provided with an entry duct (4) for the shredded tobacco and a feed pipe 10 for air which propels the shredded tobacco upwards, characterised in that the upper mouth of the column faces a mesh conveyor (18) movable substantially transversely to the vertical axis of the column, said conveyor forming an element by which the upward rise of the shredded tobacco is halted and is conveyed towards a member (30) for removing and conveying the tobacco.
  2. A separator as claimed in claim 1, characterised by comprising a suction system (16) situated in a position overlying the conveyor belt.
  3. A separator as claimed in claim 1, characterised by comprising a compressed air diffuser pipe (30).
EP03747089A 2002-04-24 2003-01-14 Separator for shredded tobacco Expired - Lifetime EP1501380B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200330141T SI1501380T1 (en) 2002-04-24 2003-01-14 Separator for shredded tobacco

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2002VE000010U ITVE20020010U1 (en) 2002-04-24 2002-04-24 SHREDDED TOBACCO SEPARATOR.
ITVE20020010U 2002-04-24
PCT/EP2003/000263 WO2003090569A1 (en) 2002-04-24 2003-01-14 Separator for shredded tobacco

Publications (2)

Publication Number Publication Date
EP1501380A1 EP1501380A1 (en) 2005-02-02
EP1501380B1 true EP1501380B1 (en) 2005-10-26

Family

ID=29267219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03747089A Expired - Lifetime EP1501380B1 (en) 2002-04-24 2003-01-14 Separator for shredded tobacco

Country Status (8)

Country Link
US (1) US20060048788A1 (en)
EP (1) EP1501380B1 (en)
AT (1) ATE307499T1 (en)
AU (1) AU2003263446A1 (en)
DE (1) DE60302060T2 (en)
ES (1) ES2251696T3 (en)
IT (1) ITVE20020010U1 (en)
WO (1) WO2003090569A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2499853C (en) 2004-03-15 2012-11-13 Universal Leaf Tobacco Company, Inc. Apparatus and method for scanning and sorting tobacco leaves
US8281931B2 (en) 2009-09-18 2012-10-09 Key Technology, Inc. Apparatus and method for post-threshing inspection and sorting of tobacco lamina
CN103101744B (en) * 2013-02-01 2015-05-13 湖南润普科技发展有限公司 Cigarette falling device of waste cigarette checking recovery system

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1588511A (en) * 1924-09-29 1926-06-15 American Tobacco Co Machine and process for blending and stripping tobacco
US1879016A (en) * 1929-12-04 1932-09-27 Lorillard Co P Threshing machine for tobacco
US3785384A (en) * 1971-11-08 1974-01-15 Carreras Rothmans Ltd Method of treating tobacco
DE2500833A1 (en) * 1974-03-06 1975-09-11 Hauni Werke Koerber & Co Kg Separating device for tobacco waste - uses compressed air blast to separate lighter waste on vibrating conveyor
DE2522148A1 (en) * 1975-05-17 1976-12-02 Hans Richard Lenz Separator for mixed solids - using cross flow of air through a vertical filter screen for medium particles and then cyclone
FR2503991A1 (en) * 1981-04-16 1982-10-22 Molins Ltd IMPROVEMENTS IN CIGARETTE MANUFACTURING MACHINES
JPS59106282A (en) * 1982-12-07 1984-06-19 日本たばこ産業株式会社 Cut tobacco feed apparatus for tobacco making machine
FR2543456B1 (en) * 1983-04-01 1986-04-11 Femia METHOD AND DEVICE FOR GRAVIMETRIC AND AERODYNAMIC SEPARATION OF A HETEROGENEOUS MIXTURE OF BODY COMPRISING RESPECTIVELY DIFFERENT DENSITY PRODUCTS AND WASTE
JPS60145080A (en) * 1984-01-06 1985-07-31 日本たばこ産業株式会社 Chopped tobacco feeder of cigarette producing machine
US5099863A (en) * 1987-08-24 1992-03-31 Universal Leaf Tobacco Co., Inc. Apparatus for separating threshed leaf tobacco
US4953570A (en) * 1988-05-04 1990-09-04 Rothmans, Benson & Hedges Inc. Cigarette making machine hopper
US4895174A (en) * 1988-05-19 1990-01-23 R. J. Reynolds Tobacco Company Tobacco particle separator
DE3839549A1 (en) * 1988-11-24 1990-05-31 Schlatterer Gmbh & Co Kg Max CONVEYOR BAND FOR CONVEYING A STRING OF TOBACCO
CA2021745C (en) * 1989-07-27 1996-12-17 Warren Arthur Brackmann Controlled opening of fibrous materials
JP3408143B2 (en) * 1998-03-17 2003-05-19 日立造船株式会社 Wind sorting means

Also Published As

Publication number Publication date
ATE307499T1 (en) 2005-11-15
WO2003090569A1 (en) 2003-11-06
ITVE20020010U1 (en) 2003-10-24
DE60302060D1 (en) 2005-12-01
US20060048788A1 (en) 2006-03-09
ES2251696T3 (en) 2006-05-01
AU2003263446A1 (en) 2003-11-10
DE60302060T2 (en) 2006-07-20
EP1501380A1 (en) 2005-02-02

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