Siemens to deliver slurry pump to Erdenet,Mongolia

The Siemens Industrial Solutions and Services Group (I&S) has
received an order from the Erdenet Mining Corporation to supply a pump
system for a copper mine in Mongolia. The purpose of the pump system is
to improve the tailings extraction process in the copper mine and to
cope with the increase in the mine's production. The system will be
supplied and installed by Siemens and is to start operating at the
beginning of 2007. It is the largest slurry pump ever supplied to a
mine. The order is valued at around 3.7 million euros.

The state-owned Erdenet Mining Company operates a copper
mine near Erdenet, a city in the north of Mongolia, and extracts 25.3
million tons of copper ore in 2005. At an annual production rate of
126.000 tons copper per annum and a cup off of 0.25 per cent copper,
the life of the mine is expected to last about 35 years. The mine is
located in Orkhon province approximately 400 km to the north-west of
Ulaanbaatar, the capital of Mongolia. Mining is the largest and most
important industry for the country, which is presently undergoing a
period of economic growth. New technology is therefore being introduced
to increase production.

This Slurry pump system pumps the rock
mass left over from the ore concentration process and transports it to
the settling pond. The pumps can also be used as cyclone and water
pumps because a great deal of water is needed for mining and sometimes
has to be pumped over a distance of many kilometers to the mine.

For
these purposes, Siemens is supplying the Simine Pump GD system with a
KSB slurry pump manufactured by GIW in the United States. The pump is
connected to a slowly operated squirrel-cage induction motor, and a
gearbox between motor and pump. The frequency-controlled drive enables
precise adaptation to any requirement, including operation at the
lowest speeds. This guarantees that the material which is being
transported flows smoothly and quickly. The pump system can be operated
with a low voltage supply of 400 V to 1000 V and with a medium voltage
supply of 1000 V to 3000 V. The system can be upgraded up to an output
of 10 MW.

This will ensure that the necessary energy is used
more effectively and that up to 30 per cent savings can be achieved
compared to conventional systems. Because the system
is optimized
for current and future load conditions the wear rate of the pump is
optimized and there is less need for maintenance and repair work. This,
in turn, leads to greater pump availability. Increased throughput and
shorter down times make a substantial contribution to higher overall
productivity.

Siemens has already supplied lighting systems
for halls and production lines as well as submersible pump systems with
a control unit to the Erdenet Mining Company.

Further information under: http://www.siemens.com/mining

The
Siemens Industrial Solutions and Services Group ( I&S ) is the
integrator of systems and solutions for industrial and infrastructure
facilities and global service provider for the plant and projects
business covering planning, installation, operation and the entire life
cycle. I&S uses the electrical and technical products of other
Siemens Groups in order to enhance productivity and improve
competitiveness of companies in the sectors of metallurgy, water
treatment, pulp and paper, oil and gas, marine engineering, open-cast
mining, airport logistics, postal automation, intelligent traffic
systems and industrial services. In fiscal 2005 ( to September 30 )
I&S employed a total of 31,700 people worldwide and achieved total
sales of EUR 5.390 billion.

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