DefinePK

Abstract

The use of non-uniform jet-pulsating mode of fluidization allows increasing the intensity of diffusion-controlled processes of mass isothermal crystallization in granulation of liquid heterogeneous systems due to the intensive volumetric mixing of granular material by pulsating removal beyond the initial layer up to 40% of its mass with a frequency of 1.6...1.8 Hz. Efficiency of application of the non-uniform jet-pulsating mode of fluidization is confirmed by the granulation of multi component liquid heterogeneous systems with obtaining humic-potassium-nitrogen-calcium-sulfur-containing fertilizer with micro-impurities of magnesium and phosphorus with chemical composition [Hum.]:[K]:[N]:[Ca]:[S]:[Mg]:[?]=[1.5]:[21.5]:[9.1]:[13.8]:[4.6]:[3.2]:[1.8] with a layered structure, spherical shape with an equivalent diameter in the range daverage=2.2...3.6 mm and a strength P greater than 12 N per granule. In this case the granulation coefficient ? is more than 85%, and the average specific load of bed by moisture is at least 1.5 times higher than this index in the case of homogeneous fluidization.