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CYCLONE SIZING EXPLAINATIONBased on Richard A. Arterburn paper(The sizing and selec on of hydrocyclones)

1 Rela onship of D50c to Over ow Size Distribu onRequired O' ow in % Passing of target size

in µMul plier to nd D50c

(applica on)

98,8 0,5495 0,7390 0,9180 1,2570 1,6760 2,0850 2,78

2 D50c (applica on or required)in µ

where Tµ = target size product in µand M = mul plier in the table above

3 Coe cient C1 (see Figure 1)

where C1 is the correc on factor for the cyclone feed concentra onand Sv = % of solids by volume in the cyclone feed

4 Coe cient C2 (see Figure 2)

where C2 is the correc on factor of the cyclone pressure dropand p is the pressure drop in kPa

5 Coe cient C3 (see Figure 3)

where C3 is the correc on factor for speci c gravity,SGs is the speci c gravity of solids in t/m3and SGl is the speci c gravity of liquid in t/m3 (1 for water)

6 D50c (base) in µ

7 Dc (see Figure 4)

where Dc is the cyclone diameter in cm

8 Cyclone capacity Convert the units! (see Figure 5)

9 Number of cyclones equals the total slurry ow rate divided by the cyclone capacit

10 Da in cm Apex diameter (see Figure 6)

11 Dv

where Dv is the vortex diameter in cm

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Explanation of the cyclone sizing procedure http://www.thecementgrindingoffice.com/mining/explaincyclonesizing...

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