EP0252067A2 - Procédé et dispositif de tri des semences - Google Patents

Procédé et dispositif de tri des semences Download PDF

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Publication number
EP0252067A2
EP0252067A2 EP87890143A EP87890143A EP0252067A2 EP 0252067 A2 EP0252067 A2 EP 0252067A2 EP 87890143 A EP87890143 A EP 87890143A EP 87890143 A EP87890143 A EP 87890143A EP 0252067 A2 EP0252067 A2 EP 0252067A2
Authority
EP
European Patent Office
Prior art keywords
seed
inlet slot
fan
sorting
curved
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Withdrawn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
EP87890143A
Other languages
German (de)
English (en)
Other versions
EP0252067A3 (fr
Inventor
Franz Harold
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.)
Maschinenfabrik Heid AG
Machinefabrik Heid AG
Original Assignee
Maschinenfabrik Heid AG
Machinefabrik Heid AG
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 Maschinenfabrik Heid AG, Machinefabrik Heid AG filed Critical Maschinenfabrik Heid AG
Publication of EP0252067A2 publication Critical patent/EP0252067A2/fr
Publication of EP0252067A3 publication Critical patent/EP0252067A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall

Definitions

  • the present invention relates to a method for seed processing in which the seeds of light seedings, e.g. Straw, husks, weeds are cleared and the seeds are sorted according to grain width and thickness, grain length and grain weight.
  • the invention also relates to an arrangement for presorting seeds.
  • Seed processing generally consists of a chain of machines in which contaminants or weakly germinated or non-germinable grains are sorted out according to various criteria. It is known, in a first stage, to use suction sifters to suck off the light admixtures such as straw, husks, weeds, etc., and then to feed the crop flow to a screening plant, where it is sorted according to grain size and thickness using different sieving methods. The broken grains or long parts are then separated lengthwise using a trimmer. The boundary grains lying on the weight limit from poor to good grains, such as sluggish grains or hollow grains, are separated by means of a weight reader in a fluidized bed process.
  • an air classifier for separating a mixture into a heavy and a light fraction which comprises a first vibratory conveyor for conveying the material mixture against an upward air flow at the outlet end of the conveyor and a second vibratory conveyor, which in Height of the first conveyor or lower is arranged, wherein the input end of the second vibratory conveyor has an upward inclined portion on which the heavy fraction falls from the exit of the first conveyor, so that the heavy fraction of the light fraction, which by the air flow on the horizontal main part the second conveyor is carried, is separated.
  • US-A 4 219 410 describes a method and an apparatus for separating heavy metal pieces from lighter chips.
  • the chips that surround the heavy metal pieces are moved along a conveyor track via a slot running transversely to the conveyor track.
  • a gas stream is directed through the cross slot to carry the chips away from the slot into a separate processing path while the heavy metal pieces fall through the slot due to their weight.
  • EP-A2 126 177 describes a device for sorting granular products which comprises a column-like housing divided by sieves of different mesh sizes.
  • a means is provided for generating an artificial l cozy air flow through the housing so that the passed product to be sorted along with the air flow through the sieves and is sorted in a substantially independent manner.
  • the invention is now based on the idea of separating about 30-40% of the good seed from the seed stream with a type of pre-sorting in the air stream and no longer feeding this separated part to the usual sorting devices, such as trimmer and weight reader, but to use it immediately as usable seed .
  • the crop stream is subjected to an air stream directed transversely to the crop stream direction for the purpose of pre-sorting and is preferably divided into light, mixed and heavy and only the mixed is subjected to further sorting.
  • the pre-sorting is therefore carried out in an air flow directed transversely to the crop flow direction, which fans out the fruit according to the specific weight and the surface shape, whereby it can be divided into any number of fractions.
  • the flow of material is preferably broken down into three parts, namely into Light goods, mixed goods and heavy goods.
  • the light goods are waste or can be used for example in compound feed.
  • the mix must go through the entire usual preparation process.
  • the heavy goods are only subjected to a short sieving process and flow together with the pure goods, bypassing the usual sorting devices such as the door and weight readers.
  • a device for the pre-sorting of the seeds, which is characterized in that it consists of an annular channel, which is composed of two opposite curved sections and two opposite straight sections and in which a cross-flow fan or axial fan is arranged, the annular channel in the Wall region of its inner circumferential boundary at the beginning of one of the curved sections has an inlet slot for the seed which extends over the width of the annular channel and in the wall region of its outer circumferential boundary opposite the inlet slot has an outlet opening for the seed which extends over the width of the annular channel.
  • the section of the ring channel that is pre-curved in the conveying direction of the fan immediately after the inlet slot is composed of two sections with different radii of curvature, the radius of curvature of the section immediately adjacent to the inlet slot being greater than the radius of curvature of the adjoining section of the curved section.
  • the fan is preferably arranged in the conveying direction of the fan at the end of the curved section, at the beginning of which the inlet slot is provided. This achieves a good leveling of the air flow before it hits the seed flow.
  • a discharge device is arranged in the conveying direction of the blower at the end of the curved section, which is opposite the curved section, at the beginning of which the inlet slot is provided.
  • the device for seed sorting consists of an annular channel 1, which is composed of two curved sections 2, 2 'and two straight sections 3, 3'.
  • a cross-flow fan or axial fan 4 is arranged in the ring channel 1.
  • the ring channel 1 has in its wall of the inner circumferential boundary 5 an inlet slot 6 for the seed.
  • An outlet opening 8 is provided in the wall 7 of the outer circumferential boundary of the ring channel 1 opposite the inlet slot 6.
  • the curved section 2 of the ring channel 1, which is provided immediately after the inlet slot 6, is composed of two sections 9, 9 'with different radii of curvature. The radius of curvature of section 9 is greater than that of section 9 '.
  • a discharge device 10 for the light components such as dust and husks carried along by the air flow.
  • the air flow generated by the fan 4 describes a curved track around the inlet slot 6 for the seed to be sorted.
  • Each individual particle is thereby struck by the air flow transversely to its trajectory and is thus swept along by the air for a maximum distance, so that the largest possible compartment is created.
  • the individual particles After exiting the air flow, the individual particles pass through the outlet opening 8 into a trajectory which is exclusively subjected to gravity, the separation limits being drawn further apart until the particles pass into free fall.
  • the fanned-out good is divided into three partial flows LG, MG and SG.
  • the light good LG is discharged via a discharge device 11.
  • the medium MG is fed to the usual sorting devices, for example a screening device 12.
  • the heavy load SG will be used directly as seeds, bypassing the usual sorting equipment. If necessary, as indicated in the drawing, the heavy material can also be subjected to sieving with the sieve 13, the coarse sieve transition at 14, at 15 the pure goods and at 16 the sieve diarrhea is obtained.
  • the air is circulated around the inlet of the seed, the light particles that are carried away during the sorting process get into the outer zone of the ring channel 1, where they are discharged via a discharge device 10, e.g. Flap to be separated with about 10% air. 90% of the total air volume is circulated via the cross-flow fan or the axial fan, with about 10% of the air being constantly renewed. The separated air is led outside via a fan and a cyclone or filter. The missing amount of air is sucked in through the outlet of the seed, in the heavy goods area.
  • a discharge device 10 e.g. Flap to be separated with about 10% air.
  • 90% of the total air volume is circulated via the cross-flow fan or the axial fan, with about 10% of the air being constantly renewed.
  • the separated air is led outside via a fan and a cyclone or filter. The missing amount of air is sucked in through the outlet of the seed, in the heavy goods area.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
EP87890143A 1986-06-27 1987-06-26 Procédé et dispositif de tri des semences Withdrawn EP0252067A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0174986A AT386363B (de) 1986-06-27 1986-06-27 Verfahren und vorrichtung zur saatgutaufbereitung
AT1749/86 1986-06-27

Publications (2)

Publication Number Publication Date
EP0252067A2 true EP0252067A2 (fr) 1988-01-07
EP0252067A3 EP0252067A3 (fr) 1990-03-14

Family

ID=3520174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87890143A Withdrawn EP0252067A3 (fr) 1986-06-27 1987-06-26 Procédé et dispositif de tri des semences

Country Status (7)

Country Link
US (1) US4801374A (fr)
EP (1) EP0252067A3 (fr)
AT (1) AT386363B (fr)
DD (1) DD263469A5 (fr)
DK (1) DK295087A (fr)
HU (1) HU200118B (fr)
SU (1) SU1547698A3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126065C2 (de) * 1991-04-15 1994-09-29 Buehler Ag Verfahren zur Luftführung für das Putzen von Griessen sowie Griessputzmaschine
US6367161B1 (en) 1998-08-14 2002-04-09 The Stanley Works Rule assembly with increased standout
US6454098B1 (en) * 2001-06-06 2002-09-24 The United States Of America As Represented By The Secretary Of Agriculture Mechanical-pneumatic device to meter, condition, and classify chaffy seed
UA111922C2 (uk) * 2015-05-25 2016-06-24 Олена Іванівна Кострубяк Аеродинамічний рециркуляційний сепаратор сипучих матеріалів

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE90345C (fr) *
FR537987A (fr) * 1921-07-06 1922-06-01 Tarare perfectionné
US3572503A (en) * 1968-11-04 1971-03-30 Waste Reclamation Corp Trash segregation apparatus
DE2556548A1 (de) * 1975-12-16 1977-06-23 Krauss Maffei Ag Vorrichtung zum sortieren einer gutmischung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US27171A (en) * 1860-02-14 Gbaibt-sepabatob
US760852A (en) * 1902-11-21 1904-05-24 James Dewar Manufacture of nickel carbonyl.
FR739594A (fr) * 1931-10-08 1933-01-13 Procédé d'enrichissement de minerai de phosphate
US2325080A (en) * 1938-10-15 1943-07-27 Thermo Plastics Corp Method and apparatus for comminuting or drying materials
US3252663A (en) * 1961-04-11 1966-05-24 Reduction Engineering Corp Classifying and reducing method and apparatus
US3378140A (en) * 1962-03-27 1968-04-16 Hauni Werke Koerber & Co Kg Method and apparatus for pneumatically separating solid particles
US3643797A (en) * 1969-07-31 1972-02-22 Dickson Paper Fibre Inc Trash-separating apparatus and method
SU473532A1 (ru) * 1973-04-10 1975-06-14 Государственный проектно-конструкторский институт "Гипромашуглеобогащение" Установка дл классификации сыпучих материалов
US3856217A (en) * 1973-06-04 1974-12-24 Garbalizer Corp Combination shredder and air-classification equipment
US4219410A (en) * 1978-11-15 1980-08-26 Prab Conveyors, Inc. Bar end separator
SE439122C (sv) * 1981-01-29 1987-03-15 Forsberg G L K Vindsiktningsanordning
IT8321934V0 (it) * 1983-05-20 1983-05-20 Barbieri Adriano Macchina selezionatrice di prodotti granulari in genere.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE90345C (fr) *
FR537987A (fr) * 1921-07-06 1922-06-01 Tarare perfectionné
US3572503A (en) * 1968-11-04 1971-03-30 Waste Reclamation Corp Trash segregation apparatus
DE2556548A1 (de) * 1975-12-16 1977-06-23 Krauss Maffei Ag Vorrichtung zum sortieren einer gutmischung

Also Published As

Publication number Publication date
DD263469A5 (de) 1989-01-04
US4801374A (en) 1989-01-31
SU1547698A3 (ru) 1990-02-28
HU200118B (en) 1990-04-28
EP0252067A3 (fr) 1990-03-14
HUT49255A (en) 1989-09-28
DK295087D0 (da) 1987-06-10
DK295087A (da) 1987-12-28
AT386363B (de) 1988-08-10
ATA174986A (de) 1988-01-15

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Inventor name: HAROLD, FRANZ