Cascade Bulk Material Loading Chute
Bulk material loading of ships and stockpiles
All other dry bulk loading systems allow material
to free fall and in doing so pull volumes of air down with the falling material. This air needs to escape at the
base of the chute and when doing so it carries the separated material particles causing highly visible dust
emissions.
Unlike freefall chutes the Cascade chute gently supports the material being loaded all the way down the
vertical length of the chute and in doing so maintains a constant and low velocity, which together with the cone
shape keeps the material in mass flow form. The low velocity causes the material not to pull air down with it
and therefore if there is no air to escape there is no dust.
A simpler analogy is to take a cup of flour and hold it with an out stretched arm and then tip it out down on
to the floor below - flour dust would be everywhere. Now take the same cup filled with flour and hold the rim
1mm above the floor and then tip the cup - the result would be a small pile of flour and no dust.
So successful is the Cascade principle that dust extraction systems are not required and Cleveland are the
only company in the world who actually guarantee dust emission levels of less than 5mg/m3
The Cascade system also carries the benefit of reduced degradation of material as the low velocity material
constantly flows on to material within the chute and therefore reduces degradation and impact abrasion
Cleveland Cascades Limited guarantee the throughput, dust emission, degradation performance and liner wear
with any chute supplied in a way that can be easily measured or demonstrated to the customer.