Patent ID: 9468893
Filing Date: 2016-10-18
CPC Classification: B01F,D21B,D21C,D21F

Claim Text:
1. A mixing unit for use in a mixing apparatus for mixing treatment media in liquid or gaseous state into a fiber suspension, which apparatus comprises a housing defining a mixing chamber, a first inlet for feeding a fiber suspension to the mixing chamber, in a flow direction F, a second inlet for feeding treatment media into the mixing chamber, a drive device, a drive shaft connected to said drive device for rotation of the drive shaft in operation, and an outlet for discharging the mixture of fiber suspension and treatment media, said mixing unit adapted to be installed in the mixing apparatus and comprising the at least two rotor bodies and the at least one stator body being adapted to interact to produce a turbulent zone in between them so as to form multiple mixing zones within the mixing chamber, the respective configuration of the at least two rotor bodies and at least one stator body in their radial extension adapted to enable insertion and/or removal of (1) at least one of the at least two rotor bodies past said at least one stator body or (2) the at least one stator body past the at least two rotor bodies, wherein said plurality of concentric rings comprises a plurality of interrupted concentric ring portions.