Theoretical modelling of the briquetting process with different pressing equipment
¹Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague,Kamýcká 129, 16500 Prague 6 – Suchdol, Czech Republic;
²Faculty of Agricultural Engineering and Auto Transportation, State AgrarianUniversity of Moldova, Mircesti 44, 2049 Chisinau, Republic of Moldova
Recently, a large number of technologies for production of solid biofuels in the formof briquettes has been researched and put into practice. The main advantages and disadvantagesof modern production methods are analysed in this study. The lack of information about theprocess of formation and agglomeration of briquettes of different types of processing equipmentadversely affects the quality of bio-fuel, rapid and intensive wear and tear of the main workingparts and higher energy compaction; this influences the cost of the final product. In order tosolve the above problems, a theoretical modelling of the process of bio-briquettes’ formation onthe piston press is proposed in the present paper. The main task was not only an analysis of theoptimal technologies for briquette production, but also a comparison and elaboration ofmathematical multifactorial linear models of the pressing process. During the theoreticalmodelling the main factors influencing the mechanical quality of briquettes were analysed andcalculated. For a more understandable description of the briquetting process in a piston press,the pressing chamber was divided into three pressing zones. Analysis of forces and pressuredistribution during the passage of material through the pressing chamber was done. The studypretends to improve the design and operational parameters of the pressing equipment.