Centrifugal sieve type OSO

Sieves type OSO belongs to the group of static processing devices applied for fine coal desludging and dewatering. This devices do not use energy, do not need any service and do not emit noise. OSO sieves can be applied for the following technological processes: 

• For preliminary fine coal dewatering after enrichment in jig,
• For fine coal desludging before enrichment in jigs and other devices,
• For concentrated fine coal separation from silting circulation water before filtering and flotation processes.
• For fine coal classification aiming to pyrites release.

We produce OSO sieves in two executions: as supported or suspended and in three variations: OSO -A, OSO – B i OSO – C. The common assemble for all variations is cone sieve insert, which base diameter (top diameter) signifies also size of the sieve in particular variation. 

The sieves differ from each other in design of guiding trough, application and operating parameters. 

A variation – applied for preliminary fine coal dewatering, for low inlet pressures and needs steady feed inflow. It varies from remaining variations in lack of sieve insert in guiding trough.
B variation – varies from A variation in cone sieve insert mounted in guiding trough (it is guiding wheel). An ability to obtain higher capacity at preserved principal dimensions of device as well as possibility to adjust capacity by partial covering of the sieve insert (guiding wheel).
C variation – differs from B variation in smaller depth of guiding trough and different design of sieve insert (guiding wheel). It is used in sludge grain size classification systems. Higher pressure of the feed inflow is required.
The OSO sieve is composed from the following basic elements: inlet nozzle, guiding trough, sieve inlets (basket and guiding wheel), outer box, solids outlet and filtrate outlet.