• 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:
    In order to achieve a uniform quality of the pulp the rate of feed movement of each piston is controlled to an essentially constant value by direct digital measurement of the actual rate of feed movement, by comparing the actual value to a present value and by compensating differences therebetween. Variations in the piston feed pressure and in the grinding power are preferably taken into account by means of additional signals related to these factors and added to or subtracted from the signal representing the actual value of the rate of piston feed movement, depending on the situation.
    公开号:SU1324590A3
    申请号:SU813307371
    申请日:1981-07-03
    公开日:1987-07-15
    发明作者:Савоньоуси Аслак
    申请人:Ой Стремберг Аб (Фирма)；
    IPC主号:
    专利说明:

    go
    15
    1 1324590
    The invention relates to pulp and paper production and can be used to control the operation of a piston feed pulverizer.
    The purpose of the invention is to improve the quality of the ground mass.
    Fig. 1 shows a block diagram of a device implementing the proposed method} in Figs. 2 and 3 are graphs of dependencies of the pressure on the piston and the power of the grinder on the speed of the piston, respectively.
    The method is carried out as follows.
    The abrasive stones 1 and 2 are driven in rotation from the electric motor 3. The wood 4 charge is pressed to the stone 1 by the piston 5. The moving speed and power of the cooler measured by sensors 20 and 7 and 8, respectively, and the pressure on the piston measured by block 6, - are fed to the input of the regulator 9, where the signals of the given values of the piston speed, pressure on the piston and power of the pulper are received. The signal from the regulator 9 is fed to the actuator 10, which acts on the valve of the piston 5.
    2, solid lines 11 and 12 reflect the relationship for the piston pair with the second stone, and lines 13 and 14 g for the first grinding machine during normal operation. With
    25
    thirty
    c and represented as dashed lines.
    In FIG. This also characterizes line 19 with respect to total power.
    When approaching the predetermined upper limit of the total power of the cooler, the operation of the pistons changes as indicated by dotted lines. If the specified upper limit of the total power of the ribwheel is reached, a transition is made from operation control based on piston speed to power control, which is reflected by line 20.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The method of controlling the operation of the piston feeding puller by maintaining a predetermined pressure on the piston, characterized in that, in order to improve the quality of the pulp, the power of the feed puller is measured, the speed of the piston is controlled by direct digital measurement, and the pressure on the piston is adjusted depending on the mismatch between the measured and the set speeds of the piston movement, and when
    power of the grinder above a given value - depending on the mismatch of pressure on the piston of the bottom 35, between the setpoint and the measured
    at a given value, the operation varies power.
    Siltation
    P
    V
    ; j
    five
    0
    five
    0
    c and represented as dashed lines.
    In FIG. 3, solid vertical lines 15, 16, and 17, 18 reflect the normal operation of the fertilizer. This also characterizes line 19 with respect to total power.
    When approaching the predetermined upper limit of the total power of the cooler, the operation of the pistons changes as indicated by dotted lines. If the specified upper limit of the total power of the ribwheel is reached, a transition is made from operation control based on piston speed to power control, which is reflected by line 20.
    Invention Formula
    The method of controlling the operation of the piston feeding puller by maintaining a predetermined pressure on the piston, characterized in that, in order to improve the quality of the pulp, the power of the feed puller is measured, the speed of the piston is controlled by direct digital measurement, and the pressure on the piston is adjusted depending on the mismatch between the measured and the set speeds of the piston movement, and when
    12
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    Editor M.Petrova
    Compiled by G. Plotnikova Tehred N. Glushchenko
    Order 2975/58 Circulation 340 Subscription
    VNISh of the USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, 4/5 Raushsk nab.
    Production and printing company, Uzhgorod, Projecto st., 4,
    20
    fi.Z
    Proofreader L. Patay
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1324590A3|1987-07-15|Method of controlling operation of wood grinder with piston feed of wood
    US5580003A|1996-12-03|Method for controlling a gyratory crusher
    GB1519238A|1978-07-26|Garbage disposal apparatus
    EP0496303A1|1992-07-29|Grinding machine for cylindrically grinding as-grown crystalline ingot
    US4222362A|1980-09-16|Speed control for a rotary dressing wheel
    US3776475A|1973-12-04|Automatic pulp grinder control
    US3961757A|1976-06-08|Method and machine for refining wood chippings, shavings, paper pulp and the like
    JPS571664A|1982-01-06|Grinder apparatus
    SU408660A1|1973-11-30|METHOD OF MANAGING THE WORK OF MILLS OF WET SELF-MILLING
    SU836983A1|1982-04-15|Method of automatic control of slip production process
    SU606621A1|1978-05-15|System of automatic control of the material-desintegration process in grate-free hammer mill
    SU1011262A1|1983-04-15|Method of controlling wet grinding process in drum mill
    JPS5947164A|1984-03-16|Control of concentration of slurry supplied from classifying tank
    SU1440537A1|1988-11-30|Method of controlling the process of grinding
    SU1362655A1|1987-12-30|Method of automatic control of pressing the oil-producing material in screw press
    SU964402A1|1982-10-07|Method of controlling clay raw material feeding into rotary kiln
    SU988936A1|1983-01-15|Method of automatic control of defibration process
    SU691194A1|1979-10-15|Method for automatically controlling the loading of a drum mill
    SU1294894A1|1987-03-07|Method of automatic control of pulp grinding process in disc mill
    SU503593A1|1976-02-25|The method of regulating the process of wet grinding in a drum mill
    SU399347A1|1973-10-03|METHOD OF REGULATING SUPPLY VALUE
    SU370312A1|1973-02-15|METHOD OF REGULATING THE PERFORMANCE OF DEFIBRATOR
    SU1357073A1|1987-12-07|Method of controlling the process of grinding in tumbling barrel
    US16239A|1856-12-16|Machinery fob grinding paper-puirp
    SU507359A1|1976-03-25|Method for automatic control of a wet grinding process in a mill operating in a closed loop with a classifier
    同族专利:
    公开号 | 公开日
    EP0046755A1|1982-03-10|
    FI793500A|1981-05-09|
    NO156615C|1987-10-21|
    NO812283L|1981-07-03|
    FI59824B|1981-06-30|
    US4515318A|1985-05-07|
    NO156615B|1987-07-13|
    JPH0229789B2|1990-07-02|
    JPS56501493A|1981-10-15|
    SE424883B|1982-08-16|
    DE3049999C2|1988-10-13|
    SE8107128L|1981-11-30|
    GB2087111B|1984-08-30|
    DE3049999A1|1982-05-19|
    GB2087111A|1982-05-19|
    WO1981001303A1|1981-05-14|
    CA1154621A|1983-10-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2965315A|1957-03-22|1960-12-20|Armstrong Cork Co|Wood grinder and means for operating the same|
    DE1222578B|1963-06-14|1966-08-11|Siemens Ag|Feed control device for wood grinders in the paper industry|
    US3314615A|1964-04-21|1967-04-18|Boise Cascade Corp|Pulpwood grinder control|
    DE1511170B2|1966-12-09|1977-03-10|Siemens AG, 1000 Berlin und 8000 München|CONTROL DEVICE FOR A FEED MOTOR IN A WOOD SANDER|
    DE1813287C3|1968-12-07|1979-08-16|Siemens Ag|Wood grinder drive|
    US3599154A|1970-03-19|1971-08-10|Gen Motors Corp|Digital speed control system|
    GB1317260A|1970-06-02|1973-05-16|Plessey Telecommunications Res|Apparatus for providing a control signal indicative of any deviationof the speed of movement of a moving object from a desired speed|
    US3690568A|1970-06-11|1972-09-12|Koehring Waterous Ltd|Wood grinding|
    US3693891A|1971-06-24|1972-09-26|Norton S Remmer|Wood grinding|
    US3776475A|1972-07-17|1973-12-04|Norton Co|Automatic pulp grinder control|DE3325049C2|1983-05-20|1985-03-14|J.M. Voith Gmbh, 7920 Heidenheim|Method and device for controlling a wood grinder|
    DE3418267A1|1984-05-17|1985-11-21|Haindl Papier Gmbh, 8900 Augsburg|Method and device for measuring the rate of wood feed in a continuous grinder|
    FI69882C|1985-01-25|1986-12-31|Tampella Oy Ab|FOERFARANDE FOER REGLERING AV SLIPPROCESSEN I EN UGNSLIPMASKIN.|
    US4844363A|1987-07-06|1989-07-04|Shredding Systems, Inc.|Hopper ram for shredder|
    US4807638A|1987-10-21|1989-02-28|Bomed Medical Manufacturing, Ltd.|Noninvasive continuous mean arterial blood prssure monitor|
    DE3804869A1|1988-02-17|1989-08-31|Feldmuehle Ag|METHOD FOR CONTROLLING A WOOD GRINDER|
    DE3920273A1|1989-06-21|1991-01-03|Hermann Getzmann|METHOD AND DEVICE FOR REGULATING THE SPEED OF AGITOR BALL MILLS|
    US5207390A|1990-08-30|1993-05-04|Mitsubishi Jukogyo Kabushiki Kaisha|Operation control system for a shredder|
    US5417375A|1994-02-22|1995-05-23|Peterson Pacific Corporation|Material reducing machine|
    US5881959A|1995-05-04|1999-03-16|Cmi Corporation|Materials grinder with infeed conveyor and anvil|
    US6293479B1|1999-11-29|2001-09-25|Clark Equipment Company|Feed control hydraulic circuit for wood chipper attachment|
    US8684291B2|2007-05-10|2014-04-01|Vermeer Manufacturing Company|System for controlling the position of a feed roller|
    WO2008140953A2|2007-05-10|2008-11-20|Vermeer Manufacturing Company|Wood chipper feed roller|
    WO2008140958A1|2007-05-10|2008-11-20|Vermeer Manufacturing Company|Feed control arrangement|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI793500A|FI59824B|1979-11-08|1979-11-08|ADJUSTMENT OF OPERATING TRAESLIMMASKIN MED KOLVMATNING|
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