METHOD FOR DETECTING FAILURE OF DIAPHRAGM IN FILTER PRESS

PURPOSE:To accurately sense the failure of diaphragms by detecting the fluctuation in the pH of the filtrate discharged in a filtration or pressing process. CONSTITUTION:Pressing water is forcibly fed from a pressing water tank 2 via a pump 3 and a stop valve 4 to the inner side of the diaphragms of...

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Bibliographische Detailangaben
Hauptverfasser:	NAKANO ICHIROU, TOKUNAGA KIYOHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRESSES PRESSES IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To accurately sense the failure of diaphragms by detecting the fluctuation in the pH of the filtrate discharged in a filtration or pressing process. CONSTITUTION:Pressing water is forcibly fed from a pressing water tank 2 via a pump 3 and a stop valve 4 to the inner side of the diaphragms of a filter press through a pressing water supply pipe 5. Next, the filtrate discharged in a filtration or pressing process is flowed via a discharge pipe 8 provided with a filtrate pH detector 10 into a filtrate tank 9. The fluctuations in the pH value of the filtrate are detected, and when the detected pH value attains a certain value, an alarm is emitted from an alarm device 11, whereby the failure of the diaphragms is detected.