
Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23 151
7Applications
7.13 Belt conveyor for bulk material
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The filling degree is the ratio of the actual to the theoretically filled surface of the belt:
[7-144] Equation 7: Filling degree
[7-145] Equation 8: Lifting force
The additional force takes the frictional resistance and inertial resistance occurring in different po-
sitions of the belt conveyor into consideration:
[7-146] Equation 9: Additional force
• The additional force (F
add
) results from:
• The inertial and frictional resistance between the material to be conveyed and the belt at the
feeding position
• Frictional resistance between the material to be conveyed and lateral chutes
• Frictional resistance by the belt cleaner
• Flexural resistance of the belt
Torque of the application
[7-147] Equation 10: Torque of the application
Tip!
Further equations to complete the calculations required for an application can be found in
the chapter "Basic calculations
". ( 68)
Shunt-force factor
The coefficients f apply to filling degrees of the belt in the range of ϕ = 0.7 ... 1.1:
l [m] 80 100 150 200 300 400 500 600 700 800 900 1000 1500 > 2000
C 1.92 1.78 1.58 1.45 1.31 1.25 1.20 1.17 1.14 1.12 1.10 1.09 1.06 1.05
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