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Extraction and transfer
Extraction, transfer and batching of Rhodimet NP 99 may all
be done with a single variable pitch screw (15° incline minimum).
The screw should have two delivery rates to improve batching accuracy.
However, this equipment is usually used in premix plants, which
use large quantities of Rhodimet NP 99. Usually the inclusion
rate for Rhodimet NP 99 varies between 5 to 20% of the mix,
or 100 to 400 kg of Rhodimet NP 99 (batch size 2 tons). In
this case, a screw with a diameter of 250 mm is necessary.
Extraction for later batching
For later batching, Rhodimet NP 99 may be extracted and transferred
to an intermediate hopper or a microsystem. In this case, either
a single speed screw (Ø 250 mm) or a pneumatic conveying
system should be used.
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