- To make all system to perform at the maximum
possible level, material should be dosed at the right
quantity at the beginning of the system.
-
- The most common way to do it is to use a screw conveyor
connected to a variable speed motor to control the speed
and therefore the quantity of material conveyed.
-
- This is also kind of compulsory between the first
part of the system (sorting and granulation) and the
washing line itself that, once again, should run with
a steady, pre-set quantity of material.
info@ledarecycling.it
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- After preparation, meaning
after sorting, shredding, grinding etc, so when
material is in flakes form, the very best results are
achieved when a constant flow is provided to the
washing line.
- So,
between preparation machinery and washing line it should
be a "buffer" something.
- It
can be a silo, in most cases, or any kind of container
where flakes can be stored for a while, provided with
an extraction screw conveyor to transfer flakes to the
washing line.
- The
motor of this screw conveyor should be driven by an
inverter or DC motor in order to vary the speed according
to needing.
- As
far as dimension (diameter) of this screw conveyor the
parameters to take in consideration are the following:
- -
Kg/hour to be fed
- -
Minimum and maximum RPM of screw conveyor (the gear
box reduction ratio)
- -
The density of flakes (the specific volume)
-
- More
or less (according to density) flakes will take about
1/3 of the volume in each volute so divide whatever
result you got by three.
- And
you're done.
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