HOISTING TECHNOLOGY
to meet the regulatory standards in safety terms
which includes a lot of risk analysis and innovative
engineering with provision of back up units.”
Winder Controls Australia has so far
commissioned one of the single drum winders
without ropes, with the other three winder
projects currently in the installation phase. The
commissioned single drum has an 8 t payload
and covers a hoisting distance of 1,028 m at a
speed of 12 m/sec and will hoist 700,000 t/y. The
other single drum is a man winder for a 40
person cage. The double drum has a 9.5 t
payload at 12.5 m/sec and will hoist 3.1 Mt/y.
Finally, the Koepe hoist has two conveyances and
has a payload in one skip of 7.8 t and the other
13 t with a winding distance of 891 m and 15
m/sec speed making for 2.12 Mt/y. The Koepe is
also used to transport mine personnel and
materials, in addition to hoisting ore.
All four winders are driverless and fully
automated. Compliance to SIL 2 has been
achieved with components such as a speed
distance protection device known as an Electronic
Hoist Monitoring Unit (EHMU), which was
developed by Winder Controls and is proprietary to
them. The winders also incorporate a SIL 2 rated
closed loop braking system.
MCA completes another contract
Also in Australia, MCA Engineering has
completed another build of another two 1200
class winders as well a 24 m construction head
frame and working stage and cage that meets the
SIL 2 requirements under MDG 33, MDG 2005
and AS 61508. The equipment was built for the
contracting arm of MCA Engineering Pty Ltd. The
equipment was contracted to a Glencore site for
the refurbishment of an existing 1,000 m shaft
which is being used to install 8,000 m of rising
mains pipe of diameter DN150 (schedule 80 and
120), as well as 7,000 m of electrical cable and a
loading station. The stage winder has 2,200 m of
30 mm rope doubling down to the stage giving a
32 t capacity at 0.6 m/sec. The cage winder has
1,200 m of 30 mm rope in a single fall giving 14.5
t capacity at 3.6 m/sec.
The five deck stage is complete with a
hydraulic crane that can handle four 9 m pipes in
a pack for installation. The project was
completed over 18 months that included the
build of equipment. The same equipment is now
available for hire and can be deployed to any
location globally.
Stantec’s depth of experience
Stantec, the global mining design and
consultancy group, has designed hoist systems
using everything from double drum production
hoists, single drum service hoists, friction hoists,
and Blair hoists, to winches for work stages
during shaft sinking. The company also has
experience with deep shafts, materials handling
systems, hoisting plants and headframes, and
associated infrastructure for mine shafts and
hoisting plants of all sizes and varieties; as well
as experience in shaft configuration, the ground
consolidation method, the sinking method, and
collar excavation.
To continue to meet worldwide demand and
production goals, a global potash miner set out
to expand their operations. The expansion
required, among other things, an update to the
hoisting plant. The existing headframe could not
support an upgraded hoist plant, so Stantec
engineers took a unique approach to the new
headframe: a design that included a ground
mounted friction hoist and a construction
approach that allowed for maximum plant up-
time. The new A-frame structure allowed a 40%
shaft capacity upgrade and was assembled in
modules above the operating shaft. Because the
new A-frame was constructed over the existing
headframe, shaft change over to the new hoist
was accomplished within 90 days, saving many
months of demolition and reconstruction. Most
importantly, production downtime was kept to a
minimum. Since then, Stantec engineers have
designed and managed construction of a second
large A-frame above an active shaft sinking
operation. The headframes at 96 m and 98 m, are
among the tallest in the world.
Stantec states: “Sinking a shaft can be
expensive and time consuming. So when faced
ELEVATING
YOUR JOB
At Mine
e Hoists International Limited we offer a single-source
y of all mine hoisting plant services to North American
supply
and International mining industries. We maintain a huge
inventory of mine hoists, and more than 80 stage winches –
up to 130,000 pounds – that are available for rent.
Mine Hoists International brings together our knowledge
and retains outside experts with world-wide experience.
This combination of expertise allows us to
offer you exceptional services.
A division of Mining Equipment Limited
Phone: (705)495-8587 | www.minehoist.com
AUGUST 2017 | International Mining 23