• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A pneumatic classifying procedure and means for dividing particulate material into a fines product consisting of lighter particles and a coarse product consisting of heavier particles. The classification takes place in a cylindrical classifying space (1) in which can be established a centrifugal field with the aid of tangential supply of the material to be classified or with the aid of a mechanical rotor, said field separating the fines product into the centre of the classifying space and the coarse product to its outer margin. It is essential in the invention that the coarse product is removed with the aid of a separate gas flow which is tangential to the centrifugal field. The gas flow runs in a passage (11) which is tangential to the classifying space (1) at the site of the coarse product removal aperture (9). When the coarse product has been separated from the gas flow, the gas may be returned to the process to serve as fluid in the centrifugal classification taking place in the classifying space (1) of the process.
    公开号:SU1528333A3
    申请号:SU874028935
    申请日:1987-01-04
    公开日:1989-12-07
    发明作者:Оваскайнен Пертти
    申请人:Ларокс Ой (Фирма)；
    IPC主号:
    专利说明:

    (L

    O4
    P 7 is removed to remove the small product, from where the small product is output to the cyclone 8. In housing 1, an adjustable opening 11 is made for output of a gearbox, under which the branch pipe 1 2dp of supplying additional air flow is located tangentially to the body. The device also contains a cyclone 14, the inlet 15 of which is in communication with the outlet of the nozzle 12, and the outlet 16 from C 5. The source material in CC 3 is set into rotational motion, Mel 15283334
    Kie particles are separated at the center, and the gearbox - at the boundary of QC 3. The supply of additional air reduces the amount of small particles captured from the gearbox. The separation limit and its accuracy are governed by the size of the holes 11, the amount of gaseous medium passing through the hole 11, the amount Q out of the gas coming out of the process, and adjusting the power of P7. The flow rate in the nozzle 12 is controlled by means of a valve, 3 з, П, f-ly, 1 sludge,
    This invention relates to the field of separation of materials using centrifugal force,
    The purpose of the invention is to improve the classification accuracy by improving the conditions for withdrawal of a large fraction from the separation zone,
    The drawing shows the devices a general view.
    The device comprises a housing 1 with a curvilinear section 2 located in the discharge zone of a shallow product. The supply of the source material and gas to the classification chamber 3 is made through the device for supplying the source material 4 and air 5, the Device 5 is placed tagektsial to the housing 1 and the fan 6 is located in it,
    In the central part of the classification chamber 3, there is a device 7 dp for removing the shallow produt, from where the small product is discharged into the cyclone 8, which separates the small product from the medium removed together with CM. From cyclone B, the gas is returned through connecting channel 9 to fan 6; Inlet 10 of fan 6 is provided with a device for adjusting the separation classification limit. Hole II dl
    large product output located
    In the housing 1 and made adjustable, and under the opening 11 tangentially to the housing 1 is the pipe 12 for supplying additional air flow. Part 1 3 of housing 1, adjacent to with methods 4 and 5, is also made curved and both curvilinear sections 13 and 2 are smoothly connected with each other. The device also contains a cyclone 14,
    0
    five
    Q
    . ,, .г
    five
    0
    g
    the inlet 15 of which is communicated with the outlet of the nozzle 12, and the outlet of the 16 is with an auxiliary 5,
    The device works as follows.
    The source material is rotated in a classification chamber 3, where small particles are separated at the center, and a large product is at its boundary. The supply of additional air that does not take part in the classification serves to reduce the amount of fine particles trapped with the large product. The separation limit and its accuracy can be controlled by the size of the opening 11, the amount of gaseous medium passing through the channel 11, the amount of gas, the output from the process, and by adjusting the power of the fan 7, the flow rate in the nozzle 12 is controlled by a valve,
    invention formula
    权利要求:
    Claims (3)
    [1]
    1. A device for pneumatic classification of materials, including a body with a curved section, located 1 Shm in the discharge zone of a small product, and with devices for feeding raw material and air into a classification chamber, a device for removing a fine product located in the central part of the classification chamber, a hole for the output of a large product, made in the housing, and a nozzle for supplying additional air flow, located under the hole for the output of the crushing product, are l and h - so that, in order to improve the classification accuracy by improving the conditions for withdrawing the coarse fraction from the separation zone, the part of the body adjacent to the feedstock and air supply devices is also curvilinear, with both curvilinear parts of the body smoothly are interconnected, and the nozzle for supplying additional air flow is located tangentially to the body,
    [2]
    2. The device according to p, I, about t l and - with the fact that, the hole
    Editor M.Blanar
    Order 7520/58
    VNI1-SHI of the State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5 Raushsk nab.
    Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101
    for the withdrawal of a large product. non-adjustable,
    [3]
    3. The device according to claim 1, about which it is equipped with a cyclone, the inlet port of the Topoi o communicates with the outlet of the nozzle for supplying additional air flow, and the outlet of the cyclone for purified air is communicated with - air supply to the classification chamber - RU.
    4, the apparatus according to claim 1, wherein the device for supplying air to the classification chamber is located tangentially to the body.
    Compiled by L. Kasatochkina
    four
    Tehred M.DidykKorrektor M.Maksimnnnets
    Circulation 54-2
    Circulation
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1436859A3|1988-11-07|Separator for separating material particles into fine and large fractions
    GB704890A|1954-03-03|Process and apparatus for separating mixtures of particles differing in specific gravity and particle size, into fractions according to specific gravity
    SU1528333A3|1989-12-07|Device for pneumatic classification of materials
    US4235612A|1980-11-25|Device for separating gaseous mixtures
    SU929232A1|1982-05-23|Thickener-turbocyclone
    GB1401331A|1975-07-16|Grader for fine-grained material
    SU1479103A1|1989-05-15|Hydraulic classifier for fine granular materials
    US4935123A|1990-06-19|Apparatus for the classification or separation of solid materials
    SU645704A1|1979-02-05|Hydraulic classifier
    SU1150042A1|1985-04-15|Multiproduct cyclone-classifier
    SU952350A1|1982-08-23|Classifying hydraulic cyclone
    SU1585018A1|1990-08-15|Separator
    GB1425482A|1976-02-18|Centrifugal separators
    SU1000107A1|1983-02-28|Hydraulic cyclone
    SU1036401A1|1983-08-23|Separator for powdered materials
    SU1331579A1|1987-08-23|Hydrocyclone
    EP0338019A1|1989-10-25|Multiple cyclone separator.
    SU1627219A1|1991-02-15|Vortex dust collector
    SU921154A1|1984-02-29|Hydrocyclone for classifying granular materials
    RU21876U1|2002-02-27|INSTALLATION AND JET-ROTOR GRINDING CAMERA FOR GRINDING
    SU1175547A1|1985-08-30|Apparatus for crushing materials
    SU1660758A1|1991-07-07|Hydrocyclone
    SU1720755A1|1992-03-23|Air-operated grain separator
    SU1197742A1|1985-12-15|Hydraulic cyclone
    SU766652A1|1980-09-30|Cyclone and separator
    同族专利:
    公开号 | 公开日
    HU199318B|1990-02-28|
    AU5864786A|1986-12-04|
    FI78241C|1989-07-10|
    WO1986006660A1|1986-11-20|
    HUT45929A|1988-09-28|
    DE3662756D1|1989-05-18|
    DK614986A|1987-01-20|
    DK614986D0|1986-12-18|
    DK157980C|1990-08-27|
    FI851762A0|1985-05-03|
    AU574922B2|1988-07-14|
    EP0222802B1|1989-04-12|
    JPS62502734A|1987-10-22|
    US4784756A|1988-11-15|
    FI78241B|1989-03-31|
    EP0222802A1|1987-05-27|
    DK157980B|1990-03-12|
    FI851762L|1986-11-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1832256A|1929-05-24|1931-11-17|Albert H Stebbins|Air classifier|
    FI54681C|1971-09-27|1979-02-12|Insinoeoeritoimisto Engineerin|PNEUMATIC CLASSIFICATION FOR OVERFLOWER FUEL|
    GB1580655A|1977-07-09|1980-12-03|Lappeenrannan Konepaja Oy|Method and apparatus for pneumatic fine classification|DE3912077C2|1989-04-13|1993-11-04|Happle Gmbh & Co Maschf|CLEANING MACHINE FOR GRAINY CLEANING GOODS|
    US6910585B1|2000-08-31|2005-06-28|Fisher-Klosterman, Inc.|Dynamic centrifugal gas classifier and method of classifying performed therewith|
    US20070023328A1|2005-07-29|2007-02-01|Flora Jonathan J|Recycling horizontal cyclonic segregator for processing harvested nuts and fruits|
    DE102005053617A1|2005-11-10|2007-06-14|Khd Humboldt Wedag Gmbh|Classifying device for sifting granular material|
    US8016117B2|2009-07-31|2011-09-13|Mac Process Inc.|System and method for eliminating emissions from an air classification device|
    UA111922C2|2015-05-25|2016-06-24|Олена Іванівна Кострубяк|AERODYNAMIC RECIRCULATION BULLING MATERIALS|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI851762A|FI78241C|1985-05-03|1985-05-03|Pneumatic grading method and device|
    [返回顶部]