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    • 46. 发明专利
    • SCREW PRESS FOR PAPER MAKING
    • JPH01321986A
    • 1989-12-27
    • JP15016088
    • 1988-06-20
    • AIKAWA TEKKO
    • AIKAWA YOSHIHIKO
    • D21F1/66D21B1/00D21C9/18
    • PURPOSE:To provide the subject press, having a specified screw divided to the inlet side for charging the raw material and the outlet side for discharging the raw material and capable of readily applying a load by a compression action enough to prevent clogging phenomena. CONSTITUTION:The raw material added from an inlet 1 for charging the raw material into a casing 3 is sent under pressure by a screw 5. A screw plate 53 is forced to rotate through a screw shaft 51 by a drive unit 7 and the raw material is sent under pressure to a screen basket 4. The transfer speed is decreased at a residence zone 6 for the raw material to increase the filling ratio. A screw plate 54 is rotated through a screw shaft 52 by a drive unit 8 at a different rotational speed and the raw material is dehydrated while being sent under pressure to the screen basket 4 and transferred to the outlet 2 side for the raw material. The concentration during the treatment process is regulated by operation of an exhaust valve 9 for adjusting opening and closing.