Title:
CONTROL METHOD AND CONTROLLER FOR SOLID-LIQUID SEPARATION SYSTEM
Document Type and Number:
Japanese Patent JP3679359
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control method and a controller capable of rapidly controlling dewatering operation by rapidly perceiving trouble, such as a defective flocculation state, of a solid-liquid separation system using a screw press hydroextractor.
SOLUTION: The control method and controller for the solid-liquid separation system are a solid-liquid separation system of adding and mixing a flocculating agent to and with a suspension to be subjected to a dewatering treatment and dewatering the suspension by the screw press hydroextractor, in which the system has, as at least one requirement, and at least one means of discriminating the case the amount of the dewatered filtrate discharged from an outer cylindrical filter body in a prescribed position of 1/8 to 3/4 of the overall length in the longitudinal direction from the terminal of a sludge feeding side toward a cake discharge side with respect to the outer cylindrical filter body existing on the outer side of a screw shaft attains a prescribed value or below as the defective flocculation state and transmitting this defective flocculation state to the outside is provided.
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Inventors:
Takao Hagino
Application Number:
JP2001320415A
Publication Date:
August 03, 2005
Filing Date:
October 18, 2001
Export Citation:
Assignee:
Ebara Corporation
International Classes:
C02F1/52; B30B9/14; C02F11/12; C02F11/14; (IPC1-7): C02F11/12; B30B9/14; C02F1/52; C02F11/14
Domestic Patent References:
| JP10337598A | ||||
| JP2001198409A | ||||
| JP6003500U |
Attorney, Agent or Firm:
Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu
Yuriko Hamada
Zenichi Soeda
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu
Yuriko Hamada
Zenichi Soeda