• 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 means for degassing paper pulp stock, comprising an elongated horizontal cylindrical tank, a distribution pipe parallel to the tank and wherefrom departs a plurality of consecutive jet tubes for introducing pulp stock into the tank close to one end of the tank, an exit tube located close to the opposite end of the tank and towards which the pulp stock flows on the bottom of the tank, members to maintain the pulp stock level constant in the tank, an additional exit tube for returning to circulation the excess pulp stock that has entered the tank, and members for producing a vacuum in the tank. The distribution pipe and the flow therewithin are directed in opposition to the flow within the tank. The cross section area of the flow diminishes towards that end of the tank where the jet tubes are located, the diminishing flow cross section area extending at least over the region of one jet tube.
    公开号:SU1384210A3
    申请号:SU823451506
    申请日:1982-06-04
    公开日:1988-03-23
    发明作者:Матула Йони
    申请人:Энсо-Гутцайт Ой (Фирма)；
    IPC主号:
    专利说明:


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    The invention relates to a device for removing gases from an aqueous suspension of paper pulp and is intended for use in the pulp and paper industry.
    The purpose of the invention is to increase the reliability of the device by preventing changes in mass concentration from occurring. .
    The drawing shows a device for the removal of gases from an aqueous suspension of paper pulp, longitudinal section.
    A device for removing gases from a water suspension of paper pulp contains an elongated horizontal cylindrical degassing tank 1, a distribution pipeline mounted parallel to the tank
    2d orientation of the slurry flow in the direction opposite to the direction of flow in the tank, equipped with several successive jet tubes
    3d feed the suspension into the tank from one end, a collection tank (not shown) connected through the inlet pipe 4 to the opposite end of the tank, pipe 5 to remove excess suspension from the tank and means 6 to maintain the level of the suspension in the tank and create in it in a vacuum vessel collecting vessel. The bottom of the tank at the end, where at least one jet tube is placed, has a conical section 7.
    The mass loading level is kept constant in the reservoir by means of overflow 8. The jet tubes 3 are vertical. Their number can vary widely.
    The device works as follows.
    The aqueous suspension of paper pulp is fed into the distribution pipe 2, and the flow in it has a direction opposite to the direction of its movement in the tank. In the jet pipes 3, the stream is divided into separate streams.
    From the leftmost jetting tube 3, the flow first of all reaches the bottom of reservoir I and is ahead of all other individual flows. From the extreme right of the jet tube 3, the flow comes out last. In this way, the difference in advance advance time is created between the individual streams which keeps them apart, separate streams. Using overflow 8, the mass level in the tank is kept constant. Through the conduit 5, the excess mass is recycled. As the mass strikes upward, strike the ceiling part of the tank and, due to the vacuum in the tank, the gas contained in it leaves. The mass is then sent to a collection container, preferably to the press box of the paper machine. The cross-sectional area of the flow is reduced at the end of the reservoir where the jet tubes are located. This is due to the fact that the bottom of the reservoir at the end where at least one jet tube is placed has a conical section 7. The inclination of the reservoir bottom is about 15 in vertical section. With such an inclination, the mass velocity is greater than 0.15 m / s, as a result of which the fibers are not deposited on the bottom of the tank, the possibility of changes in the mass concentration is eliminated and the reliability of the device increases.
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    权利要求:
    Claims (1)
    [1]
    DEVICE FOR REMOVING GASES FROM WATER SUSPENSION OF PAPER MASS, containing an elongated horizontal cylindrical degassing tank, a distribution pipe mounted parallel to the tank for orienting the suspension flow in the direction opposite to the direction of flow of the tank, equipped with several successive jet pipes for feeding the suspension into the tank with one end, a collection tank connected through the inlet pipe to the opposite end of the tank a, a pipeline for removing excess suspension from the tank and means for maintaining a constant level of suspension in the tank and creating a vacuum pressure in it and in the collecting tank, characterized in that, in order to increase reliability in operation by preventing changes in the concentration of the mass, the bottom of the tank the end, where at least one jet tube is located, has a conical section.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU1384210A3|1988-03-23|Apparatus for removing gases from water suspension of paper-making stock
    US4578199A|1986-03-25|Cyclone separators
    EP1641554A1|2006-04-05|Method and device for separating sulphur dioxide from a gas
    US3754377A|1973-08-28|Gas-liquid mass transfer process
    JPH0671109A|1994-03-15|Deaeration tank
    US3538680A|1970-11-10|Papermaking apparatus and process
    FI87247C|1992-12-10|MATNINGSARRANGEMANG OCH -FOERFARANDE FOER EN PAPPERSMASKIN FOER BEHANDLING AV EN FIBERMASSASTROEM
    US2931503A|1960-04-05|Conditioning paper-making stock
    US4276059A|1981-06-30|Deaerator for pulp stock
    US1989937A|1935-02-05|Cleaning of carbonaceous materials
    US3801436A|1974-04-02|Fibrous web forming machine with white water recirculating arrangement
    US6425986B1|2002-07-30|Process for degassing a paper stock suspension
    US6630014B1|2003-10-07|Mist eliminator
    US3237763A|1966-03-01|Method and apparatus for concentrating fibrous suspensions
    US3364660A|1968-01-23|Device for intimately contacting a gas with a liquid
    SU994014A1|1983-02-07|Unit for filtration cleaning of waste waters
    JPH06316886A|1994-11-15|Pressure-type flotation machine
    US3224581A|1965-12-21|Self-cleaning hydraulic classifier control
    SU1170027A1|1985-07-30|Apparatus for deaeration of paper pulp
    GB2055733A|1981-03-11|Method of producing a uniform stream of particles conveyed in a conveying duct by means of a conveying medium and apparatus for carrying out the method
    SU1143581A1|1985-03-07|Arrangement for hydraulic abrasive machining
    SU1093356A1|1984-05-23|Foam separation machine
    SU1230623A1|1986-05-15|Settler-thickener
    SU1031453A1|1983-07-30|Apparatus for separating flotation froth
    SU893752A1|1981-12-30|Chip feeder
    同族专利:
    公开号 | 公开日
    US4419109A|1983-12-06|
    SE8203450L|1982-12-06|
    FR2507219B1|1986-02-28|
    FI63613B|1983-03-31|
    FI63613C|1983-07-11|
    DE3219740A1|1982-12-30|
    ES512865A0|1983-05-01|
    ES8305446A1|1983-05-01|
    CA1175365A|1984-10-02|
    SE455315B|1988-07-04|
    JPS57210096A|1982-12-23|
    BR8203271A|1983-05-24|
    FI811751A0|1981-06-05|
    FR2507219A1|1982-12-10|
    JPH0240793B2|1990-09-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US11015292B2|2016-09-01|2021-05-25|Essity Hygiene And Health Aktiebolag|Process and apparatus for wetlaying nonwovens|CA692408A|1964-08-11|G. Kaiser Robert|Deaerated stock flow control|
    US1774363A|1928-09-04|1930-08-26|Fletcher Harry|Stock conduit|
    US2518814A|1944-11-11|1950-08-15|Leje & Thurne Ab|Method and means for the separation of fibers suspended in a liquid|
    US2571219A|1950-05-17|1951-10-16|Cew Judson A De|Deaeration of paper making fibers|
    US2717536A|1952-12-24|1955-09-13|Rotareaed Corp|Conditioning paper-making stock|
    US3131117A|1960-03-01|1964-04-28|Clark & Vicario Corp|Treating paper-making stock by vacuum deaeration prior to addition of diluting water|
    US3206917A|1961-10-04|1965-09-21|Clark & Vicario Corp|Deaerated stock flow control|
    FR1343635A|1962-10-04|1963-11-22|Clark & Vicario Corp|Adjusting the flow of an air purged product|
    US3432036A|1964-12-09|1969-03-11|Clark & Vicario Corp|Conditioning papermaking stock|
    US3407569A|1965-03-05|1968-10-29|Owens Illinois Inc|Method and apparatus for separating compressible and incompressible fluids in a mixture thereof|
    US3421622A|1965-08-19|1969-01-14|Nichols Eng & Res Corp|Cleaning and deaerating paper pulp suspensions|
    US3538680A|1967-12-29|1970-11-10|Clark & Vicario Corp|Papermaking apparatus and process|
    US4146469A|1977-10-11|1979-03-27|Clark & Vicario Corporation|Mounting of cleaners in papermaking system|
    US4219340A|1978-12-14|1980-08-26|Clark & Vicario Corporation|Method and apparatus for outflowing liquids from chamber maintained under vacuum|FI79361B|1988-01-05|1989-08-31|Ahlstroem Oy|FOERFARANDE OCH APPARATUR FOER UNDERLAETTANDE AV UTTOEMNING AV FALLROER ELLER LIKNANDE OCH BEHANDLING AV MASSA I SAGDA UTRYMME.|
    FI81397C|1988-07-12|1990-10-10|Ahlstroem Oy|Method and apparatus for removing light material from a fiber's suspension|
    FI93314C|1991-10-16|1995-03-27|Ahlstroem Oy|The gas separation tank|
    US5643418A|1994-11-14|1997-07-01|Witschi; William A.|Method of and arrangement for separating fluid mixtures|
    FI100950B|1995-10-24|1998-03-31|Andritz Ahlstrom Oy|Gas separation tank and its use|
    FI103519B1|1998-01-30|1999-07-15|Valmet Corp|Device for removing gas from water suspensions containing pulp fibers|
    FI108802B|1998-02-26|2002-03-28|Wetend Technologies Oy|A method and apparatus for feeding a chemical into a liquid stream and a paper machine feeding system|
    US7234857B2|1998-02-26|2007-06-26|Wetend Technologies Oy|Method and apparatus for feeding a chemical into a liquid flow|
    DE19946575A1|1999-09-29|2001-04-05|Voith Paper Patent Gmbh|Assembly for the separation of gas from a fiber suspension has a main and a secondary dividing wall in the container with underpressure to recirculate the suspension and direct gas-free suspension into a dwell zone|
    DE19947905A1|1999-10-06|2001-04-12|Voith Paper Patent Gmbh|Device for the gasification of fiber suspensions|
    DE10017037A1|2000-04-05|2001-10-11|Voith Paper Patent Gmbh|Assembly to degas a paper fiber suspension, comprises separate outlets with an overflow as required for the surplus suspension, and the gas-free suspension for effective degassing in a reduced space|
    DE10131982A1|2001-07-02|2003-01-16|Voith Paper Patent Gmbh|Method and device for degassing suspension, in particular fiber suspension|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI811751A|FI63613C|1981-06-05|1981-06-05|PAPER MUSCLE PENSION|
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