4IpaUJbnm

Figure 6. The Cascade bulk cargo handling solution
The mode of operation of this technology is relatively simple and illustrated in figure 6. The
Cascade solution overcomes this problem by constraining the material to flow in a zig-zag
path through inclined cones to limit the flow velocity and therefore prevent particulate
separation, material degradation and segregation at source. In this manner dust generation
is practically eliminated at source without the need for expensive and energy intensive dust
extraction and filtration systems. This means there is no requirement for energy-intensive
dust extraction systems and wear damage is significantly reduced. Even under
extreme operating conditions, pollution levels of no more than 5g/m3 are guaranteed.
Loader length of over 15 m has been fitted with a special ceramic lining material to prevent
wear damage from handling millions of tons of this abrasive material. For this system
doesn’t need high maintenance extraction and filtration apparatus, thereby system is saving
capital and ongoing service charges as well as energy costs associated with conventional
loading chute systems. In almost all instances dust free loading chutes are supplied by
specialist manufacturers and purchased as a separate item by the operator of a ship loader
(PortTechnology, 2014).
Also there is few more technologies which helps to manage dust concentration, one of them
– a fully contained telescoping loading chute attached to the end of the ship loading boom,
extending down into the vessel’s hold so that it rests on top of the cargo. The outlet is
lowered as close as possible to the receiving vessel, to control material flow, but there
remains a gap that is sufficient to allow dust release. As the loading operation proceeds and
the level of cargo rises in the hold, the outer bellows of the chute will compress thus
ensuring that the base of the chute is constantly resting on the cargo where a skirt
arrangement provides a dust-proof seal. It has supplied this type of equipment to ports
throughout the world, helping to protect and improve the general environment and working
conditions while at the same time offering port operators a safe and efficient out loading
system.
212