Artyukhov A. Hydrodynamic factors of granulation devices with a decreased hight of granules flight

The dissertation deals with the theoretical and experimental research of hydro-dynamic indicators of one or two phase flows in the operating space of small-sized vortical devices with the variable area of an operating space intersection. At present Ukrainian enterprises are specialized in the manufacturing of different granular products from solutions and fusions using granulation towers. This equipment requires great money input for its making, technical maintenance and repair. It is rather complex to be produced and maintained because of its dimensions. Setting up of new enterprises based on the manufacturing of granular products by means of false boiling vortex layer granulators is one of the ways expenses of decline for producing granular porous products and increasing their quality. To achieve this goal we must introduce the newest developments of modern science and technology. The methods of computation of operating space hydrodynamics in vortical devices were worked out based on physical and mathematic models. Hydrodynamic characteristics of flows were defined and the effects of starting, technological and geometrical conditions on the sizes of granulation devices were estimated. An algorithm and method of engineering calculation of vortical type vehicles is created. The new method of granular production and new small-sized high efficient devices for granulation were put forward and patented in Ukraine. Experimental and industrial installation of vortical devices was made alongside with analysis of marketable products. The results proved the high efficiency of the devices made. Keywords: granulation, hydrodynamics of flows, vоrtical granulator, modeling, sizes.