Page 36 - HUB-4 Magazine Issue 94

Quarrying
CDE deliver the right solution
for Brett Aggregates
CDE, a leading provider of wet processing solutions for the natural minerals
processing and waste recycling sectors, has commissioned a 400tph sand wash
plant in Portsmouth for Brett Aggregates.
With history dating back over 115 years, Brett is
a building materials group comprising of seven
companies, providing aggregates, concrete and
paving products to commercial and domestic
markets.
As one of the UK’s leading independent aggregate producers,
Brett Aggregates has over 60 locations across the South-East
of England and sells around six million tonnes of aggregate
sales per year.
Commenting on the two companies’ working relationship
William Melanophy, Head of Business Development UK &
Ireland at CDE said: “We have been working with Brett
Aggregates since 2018 having worked together on other sites.
With this pre-existing relationship, we’ve been able to
showcase our innovation, and the team at Brett Aggregates
has seen our technologies in action, so they knew we could
deliver the right solution.”
Ben Johnson, Production Manager for Brett Aggregates added:
“This is my first time seeing a CDE plant be installed from the
ground up. The install was well organised and completed in
good time. The compact size and the efficiency of the plant
really adds value to our operation, allowing us to maximise
storage on site.”
A compact solution
One of the biggest challenges with this plant was the limited
space. The site is in close proximity to a Royal Navy base, and
planning permissions allowed for a low-level plant.
With the limited space available, CDE designed and
commissioned a 400tph modular sand wash plant with a
compact footprint in order to meet Brett Aggregates’ needs.
To process the marine dredged material, CDE engineered a
solution which comprises of an M-Series modular wash plant
with integrated hopper, a triple deck of InfinityTM inclined
screens, an EvoWashTM sand washing system, and
AquaCycleTM thickener for primary stage water management
and an AquaStore water tank.
With Brett Aggregates seeking a plant with a minimised
footprint, CDE provided an AquaCycle and AquaStore to this
solution, both of which work in unison to remove the need for
settling ponds, which was imperative for Brett Aggregates due
to the limited site capacity. The AquaCycle thickener is a single
compact highly efficient water management solution that
minimises costly water consumption by ensuring up to 90% of
the process water is recycled for immediate recirculation. The
AquaStore receives recycled water from the AquaCycle which
is then recirculated, reducing the volume of fresh water
required to feed your washing plant.
Another mechanism to maximise performance in the limited
space, was using a sludge re-blend system. This is product that
is put back into the sand as typically marine dredged product
is less than 3% silt. This allows Brett Aggregates to control the
flow back into the buffer tank and supports the production of
high-quality sand products to be produced on site.
As well as this, CDE’s M4500 modular wash plant integrates
feeding, screening, sand and aggregate washing and
stockpiling on a single chassis. The M4500 also incorporates a
VibroSync drive system on the integrated Infinity dewatering
screen which ensures even distribution of material across the
full screening area for efficient dewatering of material.
| p36 |
www.hub-4.com Sept/Oct - Issue 94