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Recent Projects
Headframe and Hoisting Upgrade, Saskatchewan
This
project involved the installation of the world’s largest AC
Drive friction hoist. Cook Engineering was chosen to design the
structure to support the new hoist, to modify the shaft as
required to accommodate the new 50 ton, 75 ft long skips, to
design the 50 ton loading flasks to load the skips and the
ancillary building systems. The new structure was designed to be
independently mounted above and straddling the existing 260 ft
high headframe (also designed by Cook Engineering over
40 years ago). This allowed
production to continue during construction with a minimum
shutdown for hoist changeover.
This project has been in
operation since 2005. This unique design approach is currently
being duplicated on two
additional headframe upgrade designs currently underway for the
Potash industry.
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Power Boiler Upgrade, Thunder Bay , Ontario
This
boiler upgrade project consisted of modifications to the biofuel
processing and metered feed systems, new lower furnace, grate
and over-fire combustion air systems, combustion controls and a
new ash handling system. The project successfully minimized the
use of fossil fuel in the boiler by eliminating biofuel firing
outages during grate ash removal and, by providing vastly
improved biofuel firing control, allowed the boiler to respond
to mill process demand swings without using fossil fuel.
Cook Engineering worked
as part of a design-build team, consisting of a contractor,
EKT-90 Inc, and Alstom Power. The multi-discipline Cook team
was responsible for the design of the biomass fuel infeed,
preparation and metering system from the yard to the windswept
spout fuel distributors on the boiler, the ash system design,
including an innovative adaptation of ash conditioning
technology, and structural design for the Detroit Stoker VCG
grate and other boiler ancillaries. The project required an
innovative approach to construction, with the grate foundation
being installed beneath the operating boiler to reduce the
length of the boiler outage.
The system has been
contributing to the reduction of greenhouse gases since 2005.
The project was the
subject of a Pulp and Paper Canada article in Oct/Nov. 2009.
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Island Drive Bridge, Thunder Bay
Cook
Engineering provided civil, structural, electrical and
environmental engineering design services for this bridge as
part of a design-build team. The structure is the longest
integral abutment bridge in Canada. The integral abutment
concept accommodates the thermal movement of the bridge by
deflecting the abutments in combination with the piling. This
eliminates the need for expansion joints over any of the
structural girders and therefore reduces the maintenance issues
associated with these components. This approach provides the
capability of accepting larger thermal displacements at each
abutment.
In
terms of the total thermal displacement, it is believed that
this structure experiences the largest overall movements of any
integral abutment bridge in North America. |
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TERRACE BAY PULP INC
Detailed engineering for 875 psig steam supply and 75 psig
exhaust piping associated with a 25 MWe back-pressure steam
turbine installation as part of a biofuel cogeneration plant.
MTO BRIDGE INSPECTIONS
Large-scale bridge inspection assignment involving more than 120
bridges & culverts on the Trans-Canada Hwy and other highways
and local roads throughout Northwestern Ontario.
ZELSTOFF CELGAR Castlegar, B.C.
Detailed engineering associated with a 48 MWe condensing
steam turbine installation, steam savings associated with
implemen- implementation of a number of pinch projects, and a
power boiler upgrade.
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