Big Dutchman Dry Rapid DR 1500, Mounting And Operating Instructions

Page: 69 / 185

Feed supply
Page 59
DR 1500
Edition: 08/10 M 4021 GB
8.8.3 Operation
Calculating the required mineral feed quantity
m
Mt
mineral feed [g/min]
n mineral feed content [%]
m
t
conveying capacity of the DR1500 [kg/min]
Evaluating the conveying capacity of a dry feeding system at one drop tube:
Place the container underneath a drop pipe and let the installation run for 1 minute.
Subsequently weigh out the caught quantity.
Example:
Desired mineral feed content: 0,5%
Conveying capacity determined in self-experimentDR1500: 50 kg/min
The following mineral feed quantity results from this when the formula is used:
Adjusting the mineral feed dosimeter at the transfer shaft:
1. Open cover of vessel. Collect and weigh the quantity dispensed by the mineral feed
dosimeter.
2. Finally compare the weighed quantity with the required quantity and readjust at the
control if necessary.
3. Repeat this procedure until the dispensed quantity matches the calculated quantity.
If the mineral feed is changed, the mineral feed quantity has to be adjusted
according to the manufacturer's instructions!