Method, an apparatus and a rotor for homogenizing a medium

摘要

The present invention relates to a method, an apparatus and a rotor for homogenizing a medium. The invention may be utilized in all areas of industry where mere homogenization of a medium or mixing of at least two flowing media is needed. A preferred application of the invention can be found in pulp and paper making industry where various chemicals have to be mixed with fiber suspensions. A characterizing feature of the invention is the symmetry of the homogenizing operation in the homogenizing chamber.

主权项

1. A method of homogenizing a medium in an apparatus,
the apparatus including
a housing having
a homogenizing chamber with a circumferential wall, andtwo end caps at the opposite ends of the chamber,
the circumferential wall having an inlet opening and an outlet opening, the inlet opening communicating with an inlet duct, and the outlet opening communicating with an outlet duct, both openings having a center;a center line plane between the end caps;
the center line plane running essentially via the centers of the inlet opening and the outlet opening; anda rotor having
blades andan axis extending through the homogenizing chamber;the center line plane running at essentially right angles to the rotor axis,the rotor blades being arranged symmetrically on both sides of the center line plane, each rotor blade being inclined in relation to a plane defined by the rotor axis and an intersecting point between the respective rotor blade and the center line plane, in which method the medium to be homogenized
is introduced into the homogenizing chamber transverse to the rotor axis through the inlet duct and the inlet opening,is homogenized in the chamber andis discharged therefrom via the outlet opening and the outlet duct, the method comprising the step of
forcing the medium within the homogenizing chamber
to radially circulating movement, andto axially circulating symmetrical movement on both axial sides of the center line plane by pumping the medium by means of the rotor blades towards the end caps of the housing, i.e. to the axial sides of the blades.