NOVEMBER 2016
| WORLD FERTILIZER |
101
Shiploading is carried out by a combination of
slewing, luffing-lowering and telescoping movements.
All movements are controlled from the same control
cabin by means of a PLC automation.
Advantages of using a telescopic chute with
an extraction system
A telescopic chute is an ideal solution to prevent the
problem of breaking particles and to minimise dust
generation when loading bulk material. The design of
a telescopic chute ensures that material particles are
kept in mass flow form and at a low velocity. In fact,
the internal lining of the module cones minimises the
liberation of dust particles without affecting loading
rates. The extraction system, represented by the top
boom filters, guarantees a perfect vacuum into the
vessel hold, preventing any dust emission.
Due to the minimal free-fall and the low velocity
that the material experiences, material degradation is
greatly reduced when loading sized product.
Case study: France
Bedeschi is currently manufacturing a raw materials
handling machine for the new Le Havre port
shiploader, which will be used by Yara France to
unload urea. The contract is EPC based and includes
commissioning and start-up activities. The shiploader
is being designed for loading at a rate of up to
250 tph and vessels with a capacity of
up to 20 000 DWT. The shiploader is a
luffing and travelling type and
equipped with the traditional belt
conveyor boom. The machine will be
installed in substitution of the existing
one at the harbour terminal, located a
few kilometres away from the Le Havre
Yara plant, and will become the
connection point for the final products'
export operations. Commissioning of
the machine is planned for the middle
of 2016. This is the third project Yara
has awarded to Bedeschi.
Figure 4.
PAL PD reclaimer at the AT Bontang plant.
Figure 5.
Bedeschi portal reclaimer with main and secondary boom.
Going beyond shiploaders
As well as port projects, Bedeschi has also provided storage
and handling solutions to fertilizer plants.
Gresik plant
In July 2012, Petrokimia commissioned Bedeschi to upgrade an
existing fertilizer (KCL, UREA, ZA, NPK) handling plant. The
stockpile has a length of 200 m, width of 50 m and storage
volume of 50 000 t. A portal reclaimer with main and
secondary booms had been installed with a reclaiming capacity
of up to 1000 tph.
In 2013, the company supplied a circular rock phosphate
storage facility as part of a revamp of a phosphoric acid plant.
The storage volume was 103 000 t. The machine supplied had
a stacking capacity of 1100 tph and a reclaiming capacity of
300 tph.
AT Bontang plant
In 2014, PT Krakatau Engineering awarded Bedeschi a contract
to supply a urea bulk storage facility for AT Bontang plant.
The supply consisted of a PAL PD reclaimer with main and
secondary booms. The distance between rails is 47.4 m and
the reclaiming capacity was up to 1000 tph.
Bibliography
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nitrogenous-fertilizer-market
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