Vision
Ensham Resources has developed a
vision to be a sustainably competitive
producer.The starting point is an ambitious
expansion program involving a number of
key projects within the 1 billion tonne
Ensham coal resource – notably::
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Extension of the open cut
operations |
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Purchase of a $100 million
dragline |
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Feasibility of underground
mining within the Ensham Coal
resource |
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Upgrading of associated coal
handling facilities |
The opencut re-development began with
purchase of a Bucyrus 8750-63 dragline
which was commissioned in January 2007.
Pending the necessary approvals, it is
also anticipated that the open cut
mining areas will be extended in 2007
followed by the development of
underground mining operations in
2009/2010.
Existing Operations
Ensham’s mining operations currently
comprises five open cut coal mining
pits: Pits A,B,C & D either side of the
Nogoa River - referred to as the ‘Ensham
Project’ - and the ‘Yongala’ pit, which
is located approximately 5 km to the
North of the main Ensham operation.
Total combined production is currently
in the vicinity of 9 million tonnes per
annum (mtpa).
Ensham Central Project
A key component of Ensham’s vision
is the expansion of its open cut
operations through the development of a
new pit between the existing Ensham
Pits, known as the “Ensham Central”
Project.
It is anticipated this project will
provide access to an additional 60
million tonnes of high grade resource
within Ensham’s existing Mining Lease
immediately adjacent to the Nogoa River.
The company is currently conducting a
comprehensive Environmental Impact
Assessment with a view to securing
approvals to allow the project to
commence in 2007.
Multi seam project
Ensham is currently evaluating a multi seam project to enhance its strip ratios and reduce the average cost of production from its open cut operations. The project involves enhanced resource recovery of multiple thin layers of coal overlying the main seam using a selective truck and shovel methods which could yield an additional 20 million tonnes over the life of mine.
Infrastructure
Ensham is gearing up for the incremental expansion of its pit operations with a coal handling infrastructure expansion program. This will add an additional 2 mtpa of crushing capacity. The project also contemplates truck dumping stations and conveyors adjacent the main pits to reduce haulage distance to coal handling facilities. In addition coal washing is being studied in order to assess the oportunity to access premium markets for High Quality Thermal and Coking Coal.
As part of its vision to meet
market opportunities over the next
20 years, Ensham is currently
undertaking a feasibility study into a
high capacity underground
mining operation, adjacent to the
proposed Ensham Central Project.
The underground operation would enable
the recovery of an additional 70 million
tonnes of coal and may lead to further
underground mining opportunities within
Ensham’s Exploration Lease. Underground
reserves are extensive with some of the
major seams having an average thickness
of more than 5.0 metres.
Ensham has commenced an Environmental
Impact Statement and comprehensive
community consultation program in
relation to its proposed expansion
program prior to the lodgement of an
application for mining approval.
Ensham's giant can move mountains
Ensham Resources is delighted with the performance
of the second biggest dragline in the world, which
it has commissioned at its central Queensland mine.
Play Video
Dragline 4
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Ensham’s equipment
optimisation program is
spearheaded by the purchase
of a new 6600 tonne Bucyrus
8750 dragline to cater for
future expansion of
operations and slash unit
cost of production from the
open cut operations. |
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The $100 million contract with
Bucyrus Australia was commenced in
December 2004, with the dragline
expected to be commissioned in Q1 2007.
The Bucyrus 8750 is the world’s second
largest dragline and will increase
stripping capacity by approximately 60%
while shaving 75% off overburden removal
costs.
A key feature of the Dragline 4 project
is the high local content in the steel
fabrication and cast components – 85% of
which will be supplied and manufactured
within Australia.
Construction of the dragline is well
under way and involves steel
manufacturing, heavy engineering,
fabrication and casting components
produced in Adelaide, Newcastle,
Wollongong, Albury, Mackay, Ipswich and
Brisbane as well as in widespread
centres in the USA.
Ensham and Bucyrus have entered into
a unique collaborative approach
involving engineering integrity
testing and design enhancements
aimed at improving the availability
of the dragline and the life of
machine components.
Optimisation of pre-stripping process
Ensham is currently reviewing its
pre-strip fleet with a view to optimising the number and size of truck
shovels and excavators involved in
pre-strip work with a view to increasing
the efficiency of pre-strip operations
and minimising costs of contract
equipment. High Wall Mining As part of its efforts to maximise resource recovery, Ensham is investigating high wall mining in conjunction with its existing pit operations. Should this project prove to be
economically viable it may provide a
supplementary source of production up to 1 million tonne
P.A. from otherwise sterilised resources. |