Title:
FILTER PRESS TYPE DEWATERING SYSTEM, DEWATERING METHOD, DEAERATOR, CHECK VALVE, AND OPENING/CLOSING VALVE
Document Type and Number:
WIPO Patent Application WO/2002/078815
Kind Code:
A1
Abstract:
A filter press type dewatering system comprising a filter press machine, a hydraulically driven pressure-feed pump for compressing the slurry introduced from a slurry supply source to drive it into the filter press machine, a pressure control valve for adjusting the flow rate of pressure oil fed to the pressure feed pump, a flow rat sensor for detecting the flow rate of the filtrate discharged from the filter press machine, a pressure sensor for detecting the dewatering pressure in the filter press machine, and a control means for sending a control signal to the pressure control valve in response to input signals from the flow rate sensor and pressure sensor.
Inventors:
UCHIYAMA SEIJI (JP)
Application Number:
PCT/JP2002/003206
Publication Date:
October 10, 2002
Filing Date:
March 29, 2002
Export Citation:
Assignee:
TEMJIN ECO SYSTEM CO LTD (JP)
UCHIYAMA SEIJI (JP)
UCHIYAMA SEIJI (JP)
International Classes:
B01D25/00; F04B9/107; F16K1/12; F16K15/02; (IPC1-7): B01D25/12; B01D19/00; F15B3/00; F16K15/06; F16K15/18; F16K31/122
Foreign References:
| JPH09276612A | 1997-10-28 | |||
| JPS6234566Y2 | 1987-09-03 | |||
| JPS51139183A | 1976-12-01 | |||
| JPS5710398A | 1982-01-19 | |||
| JPS56145105A | 1981-11-11 | |||
| JPH06134497A | 1994-05-17 | |||
| JPS6257615A | 1987-03-13 | |||
| US5263679A | 1993-11-23 |
Attorney, Agent or Firm:
Okuda, Hiroyuki (8-10 Toranomon 1-chom, Minato-ku Tokyo, JP)
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