Abstract

The design of pulverized and packaging machine is discussed. The pulverizer and packaging machine were conceived and designed using appropriate design equations. From design analyis, the speed of the pulverizer shaft, belt velocity, maximum belt tension and power transmitted by the pulverizer belt were 900 rpm, 5.89 m/s, 317.9 N and 1771.2 W respectively. In the same analysis, 102.3 N of centrifugal force was estimated to be acting on the hammers, while the torque acting on the pulverizer pulley and maximum sheer stress on the shaft were 18,794.4 Nmm and 2.5 N/mm². In conveyor analysis, the velocity of the conveyor belt and conveyor capacity were 1.07 m/s and 30.3 tons/hr while the effective tension of the conveyor belt and horse power required to drive the conveyor belt were 201.8 N and 1.5 Hp respectively. The design was simulated using ANSYS to check the structural stability and functionality of the system. Simulation results showed that the maximum deformation experienced by the milling mechanism was 7.284 mm while the maximum static and dynamic load was not more than 131 Mpa.  The beater mechanism had the maximum deformation of 1.283 x 10^-5 mm while the twisting and bending moment was 25707 pa. The maximum stress imposed by the static and dynamic load on the storage device was 12 Mpa at the deformation of 0.016 mm. Packaging machine component had an average factor of safety of 3.5. The results of the design and simulations showed that the machine is safe for the selected working conditions.