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7Applications
7.13 Belt conveyor for bulk material
152
Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
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7.13.1.1 Symbols used
7.13.2 Data for the entry
7.13.2.1 Diameter of the drive roll
7.13.2.2 Length of conveyor line
Symbol Description Dimension unit
A
opr
Filling cross-section of the belt M
2
A
abt
Theoretical filling cross-section of the belt M
2
d Diameter of the drive roll mm
F
opr
Conveying force N
F
g
Lifting force N
F
add
Additional force N
f Filling factor
g Gravitational acceleration (g = 9.81 m/s
2
)m/s
2
J Moment of inertia of driving roller kgm
2
J
aux
Moment of inertia of supporting rollers kgm
2
J
sum
Total moment of inertia kgm
2
lConveying length m
m
L
Mass of payload kg
m’
L
Line load of the payload kg/m
m
Blt
Mass of the belt kg
m’
Blt
Line load of the belt kg/m
m
aux
Mass of the supporting rolls kg
m’
aux
Line load of the supporting rolls kg/m
M
App
Required torque of the application Nm
M
sds
Stationary torque Nm
Q Delivery rate kg/h
v Speed of the belt m/s
α Angular acceleration rad/s
2
β Angle of tilt °
Symbol Description
d Outside diameter of drive roll
Symbol Description
l Total conveying length
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