Patent ID: 8205756
Filing Date: 2012-06-26
Classification: B04C,D21D

Abstract:
1. A hydrocyclone for separating a liquid mixture into a heavy fraction and a light fraction, comprising: a housing forming an elongated separation chamber having a circumferential wall, a base end, an apex end, at least one inlet member for supplying a liquid mixture into the separation chamber, at least one of the inlet members positioned at the base end, a first outlet member for discharging separated light fraction from the separation chamber at the base end, a second outlet member for discharging separated heavy fraction from the separation chamber at the apex end, means for supplying the liquid mixture to the separation chamber via the at least one inlet member, so that during operation a liquid stream is generated as a helical vortex about a centre axis in the separation chamber, said helical vortex extending from the base end to the apex end, at least one path in the circumferential wall at least over a portion of the separation chamber, and at least one means for creating turbulence, which comprises at least one step in the path of the circumferential wall showing an increase of the radius of the separation chamber, wherein the at least one step has an angle (α) relative the centre axis.