moisture, rotation time and rotation speed. 27 tests were applied to find the optimal process for granulation. For each test, the samples were sieved using the 4mm and 2mm sieves and the percentage of granules of each size were counted. The results are shown in Table 2.1. Table 2.1. Results from pelletising process. % of mass of % of mass of % of mass of pellets pellets pellets 4mm>x>2mm 4mm>x>2mm 4mm>x>2mm for Rotation speed for Rotation speed for Rotation speed =3 =1 =2 Time = 1 Time = 1 Time = 1 Moisture = 1 32,3% 38,2% 29,9% Moisture = 2 41,6% 38,3% 40,0% Moisture = 3 41,0% 38,1% 39,9% Time = 2 Time = 2 Time = 2 Moisture = 1 43,2% 50,0% 41,4% Moisture = 2 53,2% 60,7% 51,6% Moisture = 3 53,6% 60,0% 50,8% Time = 3 Time = 3 Time = 3 Moisture = 1 42,1% 49,5% 38,1%
moisture, rotation time and rotation speed. 27 tests were applied to find the optimal process for granulation. For each test, the samples were sieved using the 4mm and 2mm sieves and the percentage of granules of each size were counted. The results are shown in Table 2.1. Table 2.1. Results from pelletising process. % of mass of pellets 4mm>x>2mm for Rotation speed =1 % of mass of pellets 4mm>x>2mm for Rotation speed =2 % of mass of pellets 4mm>x>2mm for Rotation speed =3 Time = 1 Time = 1 Time = 1 Moisture = 1 32,3% 38,2% 29,9% Moisture = 2 41,6% 38,3% 40,0% Moisture = 3 41,0% 38,1% 39,9% Time = 2 Time = 2 Time = 2 Moisture = 1 Moisture = 2 Moisture = 3 43,2% 53,2% 53,6% 50,0% 60,7% 60,0% 41,4% 51,6% 50,8% Time = 3 Time = 3 Time = 3 Moisture = 1 42,1% 49,5% 38,1%