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MULTIDOS® VDP0 pages
MULTIDOS® VDP
An apron weighfeeder for poor-flowing materials -
because there's no such word as "impossible"
Schenck Process apron weighfeeders are used for continuous gravimetric feeding of
poorly flowing bulk materials from silos. The MULTIDOS® system makes the
impossible possible: it reliably feeds even "sticky" materials such as clay, marl, trass
or sludge with the high accuracy a weighfeeder can provide. Extraction apron
feeders used as prefeeders for conventional weighfeeders or volumetric prefeeders
are no longer needed. Weighing technology integrated in the track allows VDP
apron weighfeeders to perform both silo discharge and gravimetric feeding
functions. This results in signifcantly better feeding accuracy compared with
volumetric extraction apron feeders, which ultimately means a stable, repeatable
improvement in quality in the mixing plants and an excellent return on investment.
Possible Applications
HI Charging of raw and cement mills in cement plants
0 Feeding of bauxite in aluminum plants
H Feeding of poor-flowing materials in mines and quarries
H Feeding of returns/sludges in metallurgical plants
More about
INTECONT® PLUS electronics
on pages 124-125
Advantages
0 Combination of silo discharge and gravimetrically controlled
feeding in one aggregate
E Low investment costs compared to separate aggregates
E Integrated heavy-load weighing technology ensures
high feeding accuracy (± 1 %) related to the actual feed rate
Our Solution Package:
IS Robust extraction apron feeder
E3 AC drive group with speed sensor for speed
control
H Weighing technology integrated into the
track mechanics
IS Feed hopper
E9 Electronic measuring and control device
0 Self-cleaning extraction plates minimize
material loss beneath the apron weigh-
feeder
H Integrated pin gate in the frame
H Discharge aid roller to improve material
discharge
E Scraper conveyor beneath the apron
weighfeeder
(1)aty = 1.4 t/m3
Belt width in mm (inch)
Max. feed rate [t/h]<1>
Accuracy with respect to actual feed rate
Adjustment range
Removal cross-section, length-width [mm]
Available pulley centers for each belt width
[mm]
Options
Pins for pin gates
Discharge-aid roller
Scraper conveyor
MULTIDOS9 VDP
1,000 (39.4")
300 (max. 220 m3/h)
2,250-900
1,200 (47.2") 1,400 (55.1")
430(max.310m3/h) 575 (max. 420 m3/h)
±1%
1:10
2,500-1,100 2,500-1,300
5,120; 5,600; 6,080; 6,560; 7,040; 7,520; 8,000
1,600 (63")
665 (max. 475 m3/h)
2,500-1,500
73-
"
