BELT FEEDER Preliminary Dimension Ing
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Transcript of BELT FEEDER Preliminary Dimension Ing
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DIMENSIONING BELT FEEDER (Version 1.0 - Oct/2008)mario cerda / BE mech / [email protected]
a Material bulk density kg/m3 2500Material
Idler type
Ky Idler flexure factor 0.04fm Internal friction coefficient 0.80
fsm Steel friction coefficient 0.54q Angle of repose of material 37
Belt type
B Belt width inch
m 1.83Wb Belt Weight kg/m3 35.7 (for preliminary design)B1 Material guide opening m 1.31 OkD Depth of material on the belt m 0.45 OkL Length as show on figure m 7.8L1 Length as show on figure m 2L2 Length as show on figure m 2.7L3 Length as show on figure m 2.2
H Material lift height m 0Feeder Angle 0.0 OkKa Ratio between side & vertical forces 0.25Kx Idler friction factor k/m 4.46Q Capacity (metric ton) T/Hr 1295
Qa Actual capacity (metric ton) T/Hr 1323Qa / Q Capacity ratio 1.02 Ok
VC Volumetric capacity m3/Hr 529.57V Belt speed m/s 0.25
m/min 15
Material type
Vmax Maximun recommended speed m/s 0.30
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V / Vmax Actual speed ratio 0.83 Ok
EFFECTIVE TENSION CALCULATION
Pe Force to move the empty conveyor kg 97
P1 Force to move the material kg 683
Ps Force due to material shear kg 5853
Pfs Force due to friction against skirtboard kg 1031
Ph Force to lift material kg 0
Te Tension effective kg 7665
POWER CALCULATION
N Actual required Power HP 25.5
Nmax Maximun required Power HP 30.7
Nmax / N Power ratio 1.20 Ok
4.45)*02.0** WbWbKyKxLPe
aLDBLaBKyP gg *3**2***2.1*1 2
fmLaDBPs **1***2.1 g
DLDBfsmKaaDPfs 1**4.2**** g
HaDBPe *** g
PhPfsPsPPeTe 1
4500/* VTeN
4500max/* VTeN
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LL *93.83*
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rad 0.646 material fm fsm idler type1 5 8 1
Abrasive Sand 0.65 Sand 0.33 Flat 0.04
Non-abr Coal 0.65 Betumin 0.32 V type 0.05
Coke 0.65 Antracito 0.29 U type 0.05
Fine ore 0.65 Gravel 0.5
Coarse 0.8 Coke 0.47
Fine, Dry 0.7536 Fine ore 0.55Coarse 0.75Crushed 0.54Phospha 0.54
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conveyor type Wb1 10
plylon B plylon HDRN
HDRN 16 5.2 6.4
20 6.5 8
24 7.7 9.6
30 11.9 13.5
36 14.3 16.242 17.7 2148 20.2 2454 26.8 37.660 29.8 41.8
72 35.7 50.1
84 41.6 58.496 73.263 65.818
