• Span Associates

Upward flow filter, self cleaning

Span Associates has developed span upward flow self-cleaning filter. Up flow filtration is a new filtration concept, which utilises the force of gravity. The high hydrostatic load on the filter element allows a high quantity of liquid to pass through reduced surfaces. The filter unit is a rotating drum with a filter fabric wrapped around. The rotation of the drum takes place by means of a dredging system activated by geared motor. Dirty coolant flows into the system through the inlet and passes through the drum. Heavy chips settle down to the bottom of the drum and are carried away by the conveyor. The fine particles are collected in the filtration belt. The belt passes over the back washing spray located inside the drum. The fine particles are cleaned off the belt and carried away in the form of sludge. Due to its versatility, the filter can be used for applications such as grinding, process of removing chips, industrial processes, etc.