The Planetary Dual Disperser, from Charles Ross & Son Co., is ideal for mixing of high viscosity applications that require ultra-fine dispersion quality. The disperser has two planetary stirrers and two high-speed shafts. Two saw-tooth blades are on each shaft for shearing and promoting solids dispersion. Stirrers and dispersers are independently driven and controlled.
In 2016, Ross fabricated three 1000-gallon Planetary Dual Dispersers.
For that design, a dual-post hydraulic lift raises and lowers four sets of agitators, two pairs of helical high viscosity blades and two dual-blade high speed dispersers, into the jacketed mix can. Two 150HP explosion-proof, inverter-duty motors drive the variable speed agitators. All wetted parts, as well as the specially fabricated gearbox, are stainless steel 316L; exterior surfaces are stainless steel 304. In addition to the planetary blades and dispersers, scrapers for the vessel sidewall and bottom are also supplied for maximum temperature and mass uniformity throughout the mixing zone. All three mixers include PLC controls, a chiller, built-in vacuum pump and a custom CIP spray system for flushing the gearbox and mixer cover.