- 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.
- 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
between preparation machinery and washing line it should
be a "buffer" something.
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
motor of this screw conveyor should be driven by an
inverter or DC motor in order to vary the speed according
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)
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.