Continuous squeeze-dewatering device

Abstract

A continuous compression-type dewatering apparatus has a filter chamber ( ), a drive shaft ( ), a vane ( ), and a supply path ( ). The filter chamber ( ) is delineated by an annular plate ( ) and two side plates ( ). The drive shaft ( ) passes through the center axis of the annular plate ( ) and through the inside of the filter chamber ( ), and is free to rotate with respect to the filter chamber ( ). The vane ( ) is disposed within the filter chamber ( ), is fixed with respect to the drive shaft ( ), and rotates in concert with the drive shaft ( ). The supply path ( ) passes through the drive shaft ( ) and supplies raw fluid to the filter chamber ( ). The vane ( ) as two side edges ( ) facing the side plates ( ) and an end edge ( ) facing the annular plate ( ). The side plates ( ) include a screen ( ) for separating the raw fluid into a filtered fluid and a cake. The annular plate ( ) includes an ejection port ( ) for the cake. Inflow pressure of the raw fluid from the supply path ( ) into the filter chamber ( ) and rotation of the vane ( ) causes the filtered fluid to flow out from the filter element ( ) to the outside of the filter chamber ( ), a cake that remains inside the filter chamber ( ) being pushed to the outside of the filter chamber ( ) via the ejection port ( ).