Instruction Handbook KL
Chapter 5
BA KL V11 en 10/2014 page 5-4
5.3 Bio-Mix pumps
Make sure that pump aggregates will be adequate ventilated.
Before starting, make sure that all the lines are properly connected and that the valves are
open.
By using suitable measures (rock catchers), make sure that no foreign material enters the
pump which may cause damage.
The pump is not suitable for mincing the solid phase.
If the WANGEN BIO-MIX pump feed via the feeding pump fresh gassing substratum, the
hopper room is also vented through forced ventilation to the outside. The fan should be
such that the air in the hopper room x 1 is exchanged per minute. In the vent the current
rules are observed.
1. Start the supply pump (supply device) for the liquid substrate (re-circulated material, slurry,
separated medium etc.) simultaneously with the Bio-Mix-pump.
2. After switching on both pumps, start feeding in the well-disintegrated
solid phase (maize silage etc.).
3. Control the amount supplied from the liquid phase according to the different DS contents.
(frequency converter, torque controller)
When shutting down the plant, first make sure that the supply of solid phases has been
terminated and then shut down the Bio-Mix pump. The feeding of liquid phases has to be
shut down after the inducer was flooded. (I.e. the hopper is filled)
The material being pumped into the fermenter should not have a DS-content
greater than 13-15%.
The mixing ratio of solid to liquid substances can be from 1:2 (water/maize)
to 1:5 (re-circulated material/maize). This is mainly dependent on the DS
content of the liquid phase since a DS content of 35% can be assumed for
maize silage.
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