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101

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

opr

Filling cross-section of the belt M

abt

Theoretical filling cross-section of the belt M

d Diameter of the drive roll mm

opr

Conveying force N

Lifting force N

add

Additional force N

f Filling factor

g Gravitational acceleration (g = 9.81 m/s

)m/s

J Moment of inertia of driving roller kgm

aux

Moment of inertia of supporting rollers kgm

sum

Total moment of inertia kgm

lConveying length m

Mass of payload kg

m’

Line load of the payload kg/m

Blt

Mass of the belt kg

m’

Blt

Line load of the belt kg/m

aux

Mass of the supporting rolls kg

m’

aux

Line load of the supporting rolls kg/m

App

Required torque of the application Nm

sds

Stationary torque Nm

Q Delivery rate kg/h

v Speed of the belt m/s

α Angular acceleration rad/s

β Angle of tilt °

Symbol Description

d Outside diameter of drive roll

Symbol Description

l Total conveying length

1 2 ... 147 148 149 150 151 152 153 154 155 156 157 ... 495 496

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