• 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 screen for fibre pulp is provided with means for removal of light reject. The screening apparatus comprises a vertical cylindrical screen (2); and a rotor (3) which is concentrically disposed inside the screen and the substantially closed outer surface (9) of which together with the inner surface (10) of the screen defines a screening zone (11) for the pulp. A pipe (19) is provided inside the rotor (3) the upper end of the pipe being disposed adjacent to the inner surface (21) of the closed upper end (12) of the rotor (3).
    公开号:SU1373329A3
    申请号:SU853903655
    申请日:1985-06-04
    公开日:1988-02-07
    发明作者:Симола Маркку；Хаапоя Веса
    申请人:А.Альстрем Корпорейшн,Ой Вильх Шауман Аб (Фирма)；
    IPC主号:
    专利说明:

    //
    (L
    DO 1
    00
    with y
    cm
    fig 2
    the sieve, the outer surface 3 of the rotor and the inner surface 6 of the sieve form the sorting zone 7 of the pulp. The device has a receiving chamber 8 of sorted mass surrounded by the external surface of the sieve, an opening 9 for feeding the mass for sorting, a chamber 10 for sorting waste, a means for separating heavy and light waste 11, located inside the rotor, a tubing 12 for removing light waste, which passes through the bearing 13 of the rotor's bearing, and its upper end is adjacent to
    73329
    the inner surface 14 of the end face 5. The device comprises means 15 for introducing a diluting liquid into the lower part of the sorting zone 7. The lower part of the rotor is provided with openings 16 connecting the cavity 17 of the rotor with the lower part of the sorting zone. In the housing 18 there is an inlet 19 for dilution water located in the chamber 10 of sorting waste. The rotor is mounted on the shaft 20. The upper part of the body is made up of a chamber for supplying paper pulp for sorting. 2 3.p. f-ly, 2 ill.
    The invention is a sorting device for separating heavy and light waste from paper pulp and is intended for use in pulp and paper industry.
    The purpose of the invention is to simplify the design of the sorting device while ensuring the efficiency of the disposal of light waste.
    Figure 1 shows the sorting device, a vertical section; Fig. 2 shows a sorting device equipped with means for injecting a diluting liquid into the lower part of the pulp sorting zone.
    The sorting device comprises a vertical cylindrical sorting screen I, a rotor 2 having a closed outer sorting surface 3 with hemispherical lugs 4 and an upper end 5. The rotor is concentrically located inside the sieve, the outer surface 3 of the rotor with the inner surface 6 of the sieve forms the paper sorting zone 7. The device has a receiving chamber 8 of sorted mass surrounded by the outer surface of the sieve, an opening 9 for feeding paper pulp for sorting into the upper end of the sorting zone, connected to the lower end of the lower part of the sorting chamber waste sorting chamber 10, means 11 for separating heavy and light waste ( the lower end of the rotor, near
    which accumulates waste) and a pipeline 12 inside of the rotor for removing light waste that passes through the bearing 13 of the rotor bearing, and its upper end adjoins the inner surface 14 of the end 5. The device contains means 15 for introducing dilution liquid into the lower part 7 sorting zones
    neither The lower part of the rotor is equipped with
    holes 16, connecting the cavity 17 of the rotor with the lower part of the sorting zone of paper pulp. In the housing 18 there is an inlet 19 for dilution water located in the chamber 10 of sorting waste. The rotor is mounted on the shaft 20. The upper part of the body is made up of a pulp supply chamber 21 for sorting.
    The device works as follows.
    The pulp to be sorted is fed into the device through the opening 9 and circulates tangentially in the feed chamber 21. This chamber also serves as a waste collector, where stones and other essential items are removed. From the feed chamber, the mass flows into the gap between the rotor and the sieve (from its upper end), which functions as sorting zone 7. The sorted mass flows from the sorting zone to the receiving chamber 8 of the sorted mass and is removed.
    out of the device. Waste sorting, i.e. a portion of the stream that does not pass through the surface of the sieve terminates its path in the chamber 10 of the sorting waste, where it is diluted with dilution water supplied through the inlet 19, and discharged from the device. Light waste is collected inside the rotor in space at its upper end 5, from which it can be removed through conduit 12 either continuously or periodically. The light waste flows into the space 17 inside the rotor through the means 11 for separating heavy and light waste, which is the bottom end of the rotor. The high rotational speed which is typical for a given rotor leads the mass in the sorting zone, in the waste chamber and in the space inside the rotor into a state of rotation, which creates the centrifugal field necessary to separate the light waste. Dilution water can be fed into the waste chamber to control the concentration. Figure 2 shows an alternative version of the proposed device. The mass is diluted at the bottom of the sorting zone with liquid supplied through the means 15. Through the holes 16 the main part of the waste is fed into space 1-7, where the light waste is separated and flowed up into the space at the upper end 5 of the rotor, from which it is removed through conduit 12, and the remaining waste flows down into the waste chamber
    The proposed device, while simplifying the design by arranging a pipeline for the disposal of light waste inside the rotor, provides for the effective removal of light waste.
    Q 15 20
    73329
    F o
    25
    thirty
    35
    40
    45
    Scope of the Invention 1. A sorting device comprising a vertical cylindrical sorting sieve, a rotor closed outside the sorting surface and an upper end rotor concentrically disposed within the cylindrical sorting sieve, the outer surface of which together with the inside surface of the cylindrical sorting sieve forms the sorting zone of the paper pulp, the receiving chamber of the sorted weight surrounded by the outer surface of the cylindrical screening sieve, the paper feed inlet assy for sorting in the upper end of the sorting zone, waste sorting chamber connected to the lower end of the lower sorting zone, means for separating heavy and light waste, located inside the rotor pipeline for removing light waste and mounted in the rotor cavity of the rotor bearing, characterized by that, in order to simplify the design while ensuring the efficiency of light waste disposal, the light waste disposal pipeline passes through the rotor bearing support, and its upper end flushes the inner surface of the closed upper end of the rotor,
    2. The device according to Claim I., of which it is, in that it comprises means for introducing the dilution liquid into the lower part of the paper stock sorting zone.
    3. A device according to claim 2, characterized in that the lower part of the rotor is provided with openings connecting the rotor cavity to the lower part of the paper stock sorting zone.
    FIG. one
    21
    权利要求:
    Claims (3)
    [1]
    Claim
    1. A sorting device comprising a vertical cylindrical sorting sieve having a closed outer sorting surface and an upper end rotor concentrically located inside a cylindrical sorting sieve, the outer surface of which together with the inner surface of the cylindrical sorting sieve, forms a paper sorting zone, a receiving chamber of the sorted mass surrounded the outer surface of the cylindrical sorting sieve, the inlet for feeding paper pulp for sorting to the upper end of the sorting zone, a chamber for sorting waste connected to the lower end of the lower part of the sorting zone, means for separating heavy and light waste, a pipe for removing light waste located inside the rotor and a rotor bearing support mounted in the rotor cavity, characterized in that, In order to simplify the design while ensuring the efficiency of light waste removal, the pipeline for light waste removal passes through the bearing of the rotor bearing, and its upper end adjoins the inner surface awn of the closed upper end of the rotor.
    [2]
    2. The device according to claim 1, characterized in that it comprises means for introducing dilution liquid into the lower part of the paper pulp sorting zone.
    [3]
    3. The device according to claim 2, characterized in that the lower part of the rotor is provided with holes connecting the rotor cavity with the lower part of the paper pulp sorting zone.
    FIG. 1
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1373329A3|1988-02-07|Sorting arrangement
    US4167438A|1979-09-11|Method and apparatus for preparing and cleaning fibrous material
    FI63795C|1983-08-10|APPARATUS FOER RENING AV FIBERMASSASUSPENSIONER MED RINGA MASSATAETHET
    US4043919A|1977-08-23|Pressure screen with turbulence chamber means
    CA1156975A|1983-11-15|Center flow screening apparatus
    US4634059A|1987-01-06|Method and device for emptying suspension from a pulper
    US6613191B2|2003-09-02|Pressurized screen and process for removing contaminants from a fibrous paper suspension containing contaminants
    CA1064428A|1979-10-16|Stationary cylindrical screen for liquid suspensions including a heavy impurities trap and dilution means
    KR950004725B1|1995-05-06|Sorting appartus for fiber suspensions
    CA1053184A|1979-04-24|Apparatus for eleminating specks from fibrous suspensions, especially in the reprocessing of mixed waste paper
    FI63789B|1983-04-29|ADJUSTMENT OF FIXED-RELEASED PENSION
    CA1068959A|1980-01-01|Apparatus for pulping and grading waste material
    CA1083395A|1980-08-12|Stock pulper installation having a stock pulper for pulping and sorting waste paper
    KR840000020B1|1984-01-25|Screening apparatus
    CA1163236A|1984-03-06|Dual flow screening apparatus
    US3399772A|1968-09-03|Duplex pulp screen
    SU746008A1|1980-07-07|Apparatus for sorting fibrous suspension
    CA1335191C|1995-04-11|Screening method and apparatus for light reject removal
    EP0801696B1|2000-01-26|Screening arrangement
    CN211471953U|2020-09-11|Combined type tailings sieve
    CA2023693A1|1991-02-22|Method and apparatus for removing impurities from paper pulp in pulpers
    SU1137127A1|1985-01-30|Sorting hydraulic disintegrator for final milling and grading of waste paper pulp
    FI82720B|1990-12-31|SORTERINGSANORDNING FOER FIBERSUSPENSIONER.
    SU1231093A1|1986-05-15|Apparatus for sorting fibrous mass
    SU937586A1|1982-06-23|Apparatus for sorting and cleaning fibrous suspension
    同族专利:
    公开号 | 公开日
    PT79394A|1984-11-01|
    FI833895A0|1983-10-25|
    ES8600441A1|1985-10-16|
    DK285485D0|1985-06-24|
    EP0142054B1|1989-04-26|
    EP0142054A2|1985-05-22|
    DE3477946D1|1989-06-01|
    DK285485A|1985-06-24|
    ES536855A0|1985-10-16|
    DK156078B|1989-06-19|
    PT79394B|1986-08-28|
    FI67589B|1984-12-31|
    WO1985001967A1|1985-05-09|
    DK156078C|1989-11-13|
    US4634521A|1987-01-06|
    FI67589C|1985-04-10|
    EP0142054A3|1987-04-01|
    AT42592T|1989-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1722874A|1928-01-13|1929-07-30|Harold D Wells|Pulp screen|
    US2510781A|1947-11-03|1950-06-06|Charles W Howard|Centrifugal separator|
    US3363759A|1964-04-29|1968-01-16|Bird Machine Co|Screening apparatus with rotary pulsing member|
    US3726401A|1970-12-16|1973-04-10|Bird Machine Co|Screening machine|
    US3912622A|1974-05-30|1975-10-14|Bird Machine Co|Screening machine with lights removal|
    DE2701737B2|1977-01-18|1980-03-20|Hermann Finckh Maschinenfabrik Gmbh & Co, 7417 Pfullingen|Process for the preparation and cleaning of fiber material as well as an installation for carrying out such a process|
    SU746008A1|1978-05-03|1980-07-07|Ленинградский технологический институт целлюлозно-бумажной промышленности|Apparatus for sorting fibrous suspension|
    US4268381A|1979-05-03|1981-05-19|Uniweld Inc.|Rotary pulp screening device of the vertical pressure type|US4749474A|1986-08-27|1988-06-07|Ingersoll-Rand Company|Screening apparatus|
    SE466269B|1990-05-25|1992-01-20|Sunds Defibrator Ind Ab|DEVICE FOR SILENCE OF MASS PENSIONS|
    FI88414C|1991-01-30|1993-05-10|Ahlstroem Oy|Device for treating fiber suspension|
    US5085771A|1991-05-15|1992-02-04|Huang Tien Hung|Centrifugal filter casing|
    US5312544A|1992-10-23|1994-05-17|S. P. Kinney Engineers, Inc.|Continuous strainer|
    US5326470A|1992-12-08|1994-07-05|Bird Escher Wyss Inc.|Non-compressive loading of a screen basket for a pulp pressure screening apparatus|
    US5323913A|1992-12-08|1994-06-28|Bird Escher Wyss Inc.|Pressure screening apparatus with baffle|
    FI91648C|1993-01-11|1994-07-25|Tampella Oy Valmet|An arrangement in a pressure sorter for separating impurities from the pulp fed to it|
    US5575395A|1994-07-15|1996-11-19|A. Ahlstrom Corporation|Method and apparatus for screening fibrous suspensions|
    US5580446A|1994-10-20|1996-12-03|International Paper Company|Screen, vortex apparatus for cleaning recycled pulp and related process|
    SE507905C2|1995-10-11|1998-07-27|Sunds Defibrator Ind Ab|Device for sieving pulp suspensions|
    US5960962A|1996-02-19|1999-10-05|Ahlstrom Machinery Oy|Screen|
    SE511142C2|1997-12-19|1999-08-09|Sunds Defibrator Ind Ab|Device with diluent supply for screening of fiber suspensions|
    JP4015527B2|2002-10-16|2007-11-28|相川鉄工株式会社|Screen device|
    JP4909693B2|2006-07-24|2012-04-04|相川鉄工株式会社|Screen device|
    FI122745B|2010-11-23|2012-06-15|Aikawa Fiber Technologies Oy|A method for making a screen cylinder and a screen cylinder|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI833895A|FI67589C|1983-10-25|1983-10-25|SORTERARE WITH SEPARATION AV LAETT REJEKT|
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