Patent ID: 8490798

Claim:
A hydrocyclone separation assembly comprising: a cylindrical, vertically oriented vessel with a longitudinal axis; a first plurality of hydrocyclones within the vessel, each of the hydrocyclones comprising a body with an inlet section having a first diameter and a separation section having a second diameter, where the first diameter is greater than the second diameter, where each separation section has an underflow nozzle, and where each underflow nozzle of the first plurality of hydrocyclones communicates with a first common guide having a central axis; a second plurality of hydrocyclones within the vessel, each of the hydrocyclones comprising a body with an inlet section having a first diameter and a separation section having a second diameter, where the first diameter is greater than the second diameter, where each separation section has an underflow nozzle, and where each underflow nozzle of the second plurality of hydrocyclones communicates with a second common guide having a central axis, where the first common guide and the second common guide are in communication, where the first plurality of hydrocyclones is positioned above the second plurality of hydrocyclones.