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Title:
ベルトプレス型脱水機の制御装置
Document Type and Number:
Japanese Patent JP3057983
Kind Code:
B2
Abstract:
PURPOSE:To maintain the specified moisture content of dehydrated cake and to attain a target processing quantity by detecting the cake thickness and filter cloth traveling speed of a gravity filter section and controlling a filter cloth speed and/or sludge supply rate. CONSTITUTION:The flocculated sludge is supplied to the gravity filtration zone 3 of the dehydrating machine 2 by a piping 13. The flocculated sludge is gravity filtered and is made into gravity filtered cake. The thickness of the gravity filtered cake and the filter cloth traveling speed are measured and the results thereof are inputted to a dehydration control section 7. Such fresh filter cloth traveling speed at which the cake thickness attains the target value is calculated from the difference of the measured value of the cake thickness and the target value and the measured value of the filter cloth traveling speed. The filter cloth traveling speed is changed if the fresh filter cloth traveling speed is within the control range of the previously set filter cloth traveling speed. The sludge supply rate is so changed that the filter cloth traveling speed restores the value within the control range if the filter cloth traveling speed described above deviates from the control range.

Inventors:
中村 賢三
服部 保
林 知幸
田中 倫明
菱谷 和信
Application Number:
JP29932793A
Publication Date:
July 04, 2000
Filing Date:
November 30, 1993
Export Citation:
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Assignee:
オルガノ株式会社
東京都
東京都下水道サービス株式会社
栗田工業株式会社
International Classes:
B01D33/04; B30B9/24; C02F11/12; (IPC1-7): B30B9/24; B01D33/04; C02F11/12
Attorney, Agent or Firm:
重野 剛



 
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