Pellet Mill Fixed Dies Type for Production of Solid Fuel Pellets from Acacia mangium Bark

1st International Conference on Mechanical Electronic and Biosystem Engineering

Arnalis Renjani, Rengga^1^2 ; Wulandani, Dyah^2

Department of Agricultural Engineering, Stiper Agricultural University (INSTIPER), Nangka 2 Street, Maguwoharjo, Depok, Sleman, Indonesia^1

Department of Mechanical and Biosystem Engineering, Bogor Agricultural University (IPB), Bogor, Indonesia^2

关键词: Acacia mangium;    Biomass density;    Biomass pellets;    Maintenance process;    Rotation speed;    Size reductions;    Small and medium enterprise;    Throughput capacities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/557/1/012057/pdf
DOI  :  10.1088/1757-899X/557/1/012057

来源: IOP

【 摘 要 】

Biomass pellet or pellets are bio solid fuel made from compacted sawdust and other bio waste. Pelletized processes consist of three major unit operations, i.e. drying, size reduction (grinding), and densification. Increasing biomass density needs a machine, to produce pellet with best quality. Pellet mill or pelletization machine in Indonesia still expensive because due to import duties, difficult maintenance process, and suitable for small and medium enterprise or industry. The purpose of this study was to design a prototype pellet mill integrated size reduction that encompasses size reduction as well as extrusion using the fixed dies type pelletizing method, and fabricated using locally available construction materials. Main features of the machine are hopper, gearbox, electric motor (2.23 kW, 1 phase, 3 hp rating), axial shaft, roller, and fixed dies. Material used in this research was A.mangium bark and the results of this study indicated the pellet mill has been able to produce pellets with a throughput capacity of 7.70 kg/h, with rotation speed 68.98 rpm, and load of machine range 0.44-0.51 kW.