Abstract
The authors of the article present and prove the possibility of reducing the economic and environmental indicators in the processes of mineral fertilizers granulation by means of recycling and using organic agricultural waste. It is shown that such waste products are in the form of very moist suspensions, therefore, in order to minimize energy consumption for their processing, the optimal technology for granular product preparation is granulation in the fluidized bed apparatus. For this purpose there has been conducted the physical modelling of the granule formation process and one found out the conditions of suspended layer formation, which determine the nature of the dispersed suspension and dispersed solid phase interaction. One has experimentally established the temperature regimes of organic suspensions granulation and determined the operating parameters of the process. The kinetics of coarsening of granules was studied depending on the temperature of dehydration of organic suspensions. Analytical dependencies that are determined by the heat transfer coefficient are obtained to determine the time and temperature of granule heating.
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Acknowledgement
This research was conducted under the project «Improving the Efficiency of Granulators and Dryers with Active Hydrodynamic Regimes for Obtaining, Modification and Encapsulation of Fertilizers» (State Reg. No. 0116U006812).
Also this research was partially supported by research grant from the Slovak Grant Agency VEGA Project 1/0731/16 «Development of Modern Numerical and Experimental Methods of Mechanical System Analysis».
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Ostroha, R., Yukhymenko, M., Lytvynenko, A., Bocko, J., Pavlenko, I. (2019). Granulation Process of the Organic Suspension: Fluidized Bed Temperature Influence on the Kinetics of the Granule Formation. In: Ivanov, V., et al. Advances in Design, Simulation and Manufacturing. DSMIE 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-93587-4_48
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DOI: https://doi.org/10.1007/978-3-319-93587-4_48
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