Vortex granulators. Part I: Hydrodynamics

Vortex granulator produces granular products without the use of granulation towers. Its granulation from melts, solutions and suspensions is based on the improvement of the granules flow dynamics, which provides increasing monodispersity of granules which grow in the vortex layer, increasing homogeneity of the obtained product granulometric composition, obtaining of granules of given structure, classifying them due to their size, obtaining of granules with porous structure preserving their firmness (without destroying their internal crystalline structure) Granulator main advantages: its dimensions are small so there is no need in big working place for it, (including height), the time of granules spend in the working space of the vortex apparatus is increased, control of the granules movement in the granulator working space, creating of intense turbulence in the whole granulator workspace, multifunctionality (using one device to fulfill both granulation and drying processes), high production effectiveness and easy construction, qick changeover of the device, possibility of process and construction parameters changing.