Pusher Centrifuge

Özyurt Makine

Pusher Centrifuge

Pusher centrifuges are continuous filtering centrifuges used for dewatering and washing free-draining bulk crystalline, polymer, or fibrous materials . Where suited, they provide the best washing characteristics of any continuous centrifuge due to control of retention time, uniform cake bed, and essentially plug flow of solids through the unit . For a typical appli- cation such as salt, they range in capacity from about 1 ton/h for small (250-mm-diameter) units up to about 120 tons/h or more in the largest units (1250-mm-diameter) . They are generally applied where the mean particle size is at least 150 µm . Typical solids retention time is between 10 and 30 s . Normally the machine is fed by a feed pipe, but it can also be used as post- treatment of a prior dewatering step such as a vacuum filter . In this case it is fed by a feed screw . Due to the gentle handling of the product, pusher centri- fuges are better suited Due to the gentle handling of the product, pusher centri- fuges are better suited for fragile crystals than are other types of continuous filtering centrifuges