bond power 2 chambers mill
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20/5/2016 Bond power 2 chambers mill
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20/5/2016 Bond power 2 chambers mill
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Bond power formula
(For 2 chambers mill) 85 Date 20/05/2016 86
Company/Plant Thaigroup cement Thaigroup cement 87
Mill N° 1 1 88
Mill diameter 4,2 m
Speed 15,8 rpm Criĕcal speed 20,64 rpm % of the criĕcal speed 76,55 %
Chamber 1:
Lining average thickness 75 mm Internal diameter 4,050 m
Useful length chamber 1 2,715 m
Volume load (Filling degree) 28,8 %
Gross power by ton of ball 12,751 kW
Maximum ball size 40 mm ‐0,23048720472440948 Ball size factor ‐0,230
Gross power by ton of ball corrected 13,540 kW
Bulk density of ball charge 4,607 t/m3 Tons of balls chamber 1 46,4 t
Absorbed power at sha├ 628 kW for chamber 1 85 Chamber 2: 86
Lining average thickness 55 mm 87 Internal diameter 4,090 m 88
Useful length chamber 2 9,5 m 89
Volume load (Filling degree) 29 % 9091
Gross power by ton of ball 12,756 kW 9293
Maximum ball size 20 mm 0 94 Ball size factor 0,000 ‐0,6751919291338584 95
96 Gross power by ton of ball corrected 13,776 kW 97
98 Bulk density of ball charge 4,699 t/m3 99 Tons of balls chamber 2 170,1 t 100
Absorbed power at sha├ 2343 kW for chamber 2
Absorbed power at sha├ 2972 kW for mill
Transmission efficiency 91 % Motor efficiency 92 %
Absorbed power at terminals 3550 kW for mill
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