PUMPS AND PIPELINES
make sure everything was aligned. Now, nothing
has to be taken apart in terms of splitting the
pump end and it takes one person 30 minutes to
change the belt.”
Reviewing these four improvements to the
latest Godwin pump, Snow said: “In terms of
total cost of ownership, there is an opportunity
to save as much as $60,000-70,000 over five
years with this pump.
“I use the word ‘opportunity’ as you would
have to take full advantage of all the benefits to
realise those savings.
“But, on fuel economy, specifically, customers
will definitely see savings.”
Snow said Xylem’s efforts to comply with both
US EPA Tier 4 and EU Stage V engine
requirements had recently seen the company
adopt a different power generation philosophy
for its pumps.
“In the US, historically, the users – and also
ourselves – always thought bigger was better;
the bigger the diesel engine, the better.
“As the constraints on the engines have come
in...we have learned you have to run these diesel
engines hot and hard for them to run efficiently.
“If you run the engines too slow, with not
enough load on them, they have a tendency to
clog up or stop working when you least expect
it.”
Pairing the right diesel engine with the right
pump has proven key to getting the highest level
of performance out of the company’s new pumps.
As the S for smart indicates, there is an
element of remote monitoring that comes with
the CD150S under Xylem’s Field Smart
Technology (FST).
Customers can see how the pump is operating
– whether it is turned on/off, how fast it is
running, etc – from anywhere in the world, while
also analysing longer-term trends and parameters.
Snow said: “We’ve also introduced the
capability for a customer to be warned if there is
an issue with the pump – either by a telephone
call or text.”
Customers identify a hierarchy of contacts
under the FST solution and the personnel are
contacted accordingly if a problem arises.
Snow added: “The FST effectively allows
miners to cut down on their labour force; they
can coordinate more centrally to see how various
assets are being used within or between mines.”
Xylem has acquired a few sensing,
measurement and analytics companies over
recent years, including Sensus and Pure
Technologies, and expects to continue its
investment in FST.
The CD150S on show at Bauma came with a 6
in (150 mm) flange, and Snow said the company
had plans to release a 4 in (100 mm) version later
this year. “After the 4 in, I would imagine moving
into the high lift applications, which is for
70 International Mining | JUNE 2019
mining, and then also go
into the higher flow version
of these – the 8 in and 12 in
models,” he said.
Xylem’s well-oiled R&D
pipeline is also working on
new power options for
pumps; Snow said the
CD150S can already
accommodate diesel,
electric and natural gas.
Then, there is new
dewatering technology for
deeper mines on the radar.
On the latter, Snow said:
“That is another trend in the
industry – mines are going deeper, having to
pump water at higher heads and pressures.
“This is another investment we are making for
the future; I can’t give you new product dates,
but stay tuned!”
A ‘well-oiled’ program
DXB Pump & Power, the UK’s newest mining
pump manufacturer will, in September 2019,
launch its new range of portable engine-driven
pumpsets for sand and slurry applications in
mines and quarries using a range of Stage 2-5
engines for different locations. This includes Tier
4 Final /EU Stage 5 emission compliant engines
from Cummins for mines in Europe and America.
Built around the Cornell SM and MP range of
Hi-Chrome pumps, the initial range of pumpsets
will be available in either open frame or sound
attenuated, fully bunded canopies with engines
ranging from 55 kW up to 250 kW, or 3.8 litres to
9 litres, generating maximum flows up to 900
m 3 /hr (250 l/sec) and heads up to 140 m (14 bar)
while passing solids up to 80 mm in size.
The new range of pumps slot into the same
engine/canopy solutions DXB offers for its
dewatering and solids handling pumpsets,
already supplied by the manufacturer to its
global quarry/mining and pump hire companies
within Europe and beyond.
Simon Ruffles, Managing Director of DXB
Pump & Power, said: “The new dry-prime slurry
pumps from Cornell are market leading in terms
of efficiency and materials of construction and
innovative features, such as the proven
Cycloseal, make them perform more efficiently
and for less money than any other engine-driven
slurry pumps on the market.”
He continued: “Cornell took the heavy-duty
bearing housing and 50 cfm (110 m 3 /hr) priming
gear that they have used on their Redi-prime
range of dewatering pumps and designed a
range of Hi-Chrome pumps with 650 Brinell
hardness fluid ends, making them perfect for
slurries and silts in the mining industry where
the mines need both high-efficiency dewatering
DXB Pump’s new 300 mm s1400/35SAP pumpset
pumps and portable slurry pumpsets where they
cannot ensure no solids are in the water, such as
settling lagoons.”
The new range of pumps in 100, 150 and 200
mm sizes are matched to suitable engines for
each mining region, allowing for ease of
maintenance and ownership, especially markets
with the more technical aspects of Stage 5
emission compliance, DXB said. With expected
inflated specific gravities of as high as 1.8 seen in
slurry applications, DXB carefully designed each
pumpset to match the expected duty points at
various specific gravities without overloading the
engines, it said.
The development of DXB’s Stage 5 pumpsets
has been ongoing in DXB since October 2018.
Ruffles said: “DXB Pump has worked with six
to eight engines manufacturers in reviewing their
available products and chosen two key European
manufacturers for its future range of Stage 5
engines, ranging from 30 kW right through to 475
kW and will be packaging them in eight different
canopy sizes, and over 35 different pump/engine
combinations, including dewatering and slurry
pumps. This R&D has taken the company over
nine months to finalise and has now already
resulted in the delivery of its first batch of Scania
9 and 13 litre engines, which are being packaged
into pumpsets up to 450 mm in size for its
European customers as well as its own pump hire
fleet.”
The Scania engines, which incorporate
variable pitch turbochargers, allow DXB
pumpsets to operate at lower, quieter speeds
without causing diesel particulate filtration
systems to become clogged so quickly, according
to DXB. This reduces the need for frequent
“regen” or self-clean of the pumpsets, which
could interfere in the user’s normal pumping
operations.
“We felt Scania offered a first-class technical
solution with an integrated treatment programme
that was well designed and supported by the