| 摘要 |
PROBLEM TO BE SOLVED: To provide a centrifugal filtration concentrating device executing efficient automatic washing in good timing by accurately detecting the generation of dirt and clogging of a filter cloth in order to efficiently execute concentrating treatment for eliminating unnecessary washing and executing washing while rotating a rotary basket in a speed easy to peel the dirt in order to increase washing effect. SOLUTION: An alarm control instrument 22 is connected to a vibration sensor 20 attached at the outer surface of the device body 1. The alarm control instrument 22 compares the amplitude of the vibration detected by the vibration sensor 20 and the standard amplitude, and when the detected value is not less than a set standard value, the control instrument 22 judges that abnormal vibration is generated and washing is necessary, and when the detected value is not more than the set standard value, the control instrument 22 judges that the dirt of the filter cloth is low and washing is unnecessary. A controller 24 following the control instrument 22 outputs a control signal to at least two control means among a sludge supply control device 32, a revolving speed control device 30 and a washing control device 26 and controls a feed pump 33, a washing pump 28 and a driving motor 7 through these devices. |
