DISPERSER Russian patent published in 1999 - IPC

FIELD: equipment for grinding and fine dispersion of mineral and organic substances such as black and brown coal in liquid medium. SUBSTANCE: disperser has rotary-pulsating unit, grinding chamber made in the form of cyclone, charging and discharge devices, bypass and acoustic reflector. Rotary-pulsating unit has stator, rotor and mixing pump impeller. Rotor and impeller are mounted on common shaft. Bypass inlet is connected to delivery side of pump and bypass outlet is in communication with cavity of hydraulic cyclone adjacent to its conical part at the level of reflector focus tangentially to conical surface of cyclone so that direction of flow from bypass coincides with vortex direction of flow created by impeller. Space between reflector and grinding chamber may be filled with soundproofing material. Top part of grinding chamber may be made in the form of acoustic reflector. EFFECT: increased efficiency, improved quality of dispersion of solid materials and reduced power consumption. 3 cl, 1 dwg