1. Gambar hm cyclone
overflow discharge
(atmospheric pressure)
CYCLONE
underflow discharge
(atmospheric pressure)
underflow discharge
(atmospheric pressure)
P required = 135-180 kPa P required = 135-180 kPa
0.5 m
3 m
1 15.5
3
PUMP
pipe section 1
pipe section 3
pipe section 2
pipe section 4
HEAVY MEDIUM PUMP CALCULATION
Data New Pump Worn Pump
Flowrate required, Q (m3/hr) 830 680
Flowrate required, Q (l/s) 230.556 188.889
Flowrate required, Q (m3/s) 0.231 0.189
Solid S.G 2.2 2.2
Slurry S.G 1.47 1.47
Head produced (m slurry) 30 26
Suction line
Suction pipe length l (m) 3 3
Suction pipe diameter, Ds (m) 0.300 0.300
Suction pipe diameter, ds (mm) 300 300
Smaller suction pipe dia (m) 0.203 0.203
Smaller suction pipe dia (mm) 203 203
Total suction line equivalent length (m) 3 3
Discharge Line
Length of pipe l (m) 16.8 16.8
Total long radius bend (each) 0.500 0.500
Total tee (each) 0.250 0.250
Equivalenth length from 90 long radius bend 2 2
Equivalenth length from tee 2.875 2.875
Total discharge line equivalent length L (m) 21.675 21.675
Discharge pipe inside diameter d (mm) 300 300
Discharge pipe inside diameter D (m) 0.300 0.300
Smaller discharge pipe inside diameter d1 (mm) 203 203
Smaller discharge pipe inside diameter D1 (m) 0.203 0.203
Suction pipe diameter, Ds (m) 0.300 0.300
Suction pipe diameter, ds (mm) 300 300
Suction head Zs (m) 2 2
Discharge head Zd (m) 16.3 16.3
Friction value f 0.020 0.020
Gravitation g (m/s2) 9.810 9.810
Slurry velocity at pipeline, V (m/s) 3.261 2.672
Slurry velocity at smaller dia at discharge, V1 (m/s) 7.122 5.835
Slurry velocity at suction pipe, Vs (m/s) 3.261 2.672
Friction head for discharge pipeline, Hfd (m) 0.783 0.526
Friction head for suction pipe line, Hfs (m) 0.108 0.073
Loss in discharge pipe enlargement, He (m) 0.418 0.281
Loss at pipe discharge Hv (m) 0.542 0.364
Loss at entrance to suction, Hs (m) 0.271 0.182
Head loss due to sudden enlargement (m) 0.760 0.510
Head loss due to suddent contraction (m) 0.043 0.029
Total slurry head, Hm (m) 17.226 16.264
Residual head 12.774 9.736
Cyclone pressure (kPA) 184.213 140.402
Total head of the system (m slurry) 30 26
