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| Project: |
Conveyor Gallery and Transfer Chutes |
| Location: |
Endako, BC |
| Client: |
Thompson Creek Mining Ltd. (Endako Mines) |
| Services: |
Detailed design and drafting of conveyor supports,
transfer chutes and a conveyor bridge in connection
with the installation of an in-pit crusher
at a molybdenum mine in northwestern BC.
The conveyor bridge crossed an existing
ore haul road and blended material pre-crushed in the pit
into the primary material stream at the head end crusher.
The project provided the client with the flexibility to
choose any combination of truck hauled or conveyed ore,
depending on process demand at the mill. |
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| Project: |
Improvements to Pressure Reducing Station |
| Location: |
Kemess, BC |
| Client: |
Northgate
Exploration Ltd. (Kemess Mine) |
| Services: |
Design of improvements to an existing
pressure reducing station on the return
leg of the mill's process water loop. A
custom designed and fabricated hydraulic
energy attenuator was installed immediately
downstream of the orifice plate assemblies
and immediately upstream of the stilling
basin to reduce hydraulic forces and wear
in the pressure reducing station chest.
The attenuator allowed a 25% net increase in the capacity of the
station, making more water available to the mill for process requirements.
Structural improvements were also made by installing a laterally
post-tensioned, precast concrete baffle and grouting an existing,
badly deteriorated concrete weir. |
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| Project: |
Vertical
Flotation Columns |
| Location: |
Kemess, BC |
| Client: |
Northgate
Exploration Ltd. (Kemess Mine) |
| Services: |
Design of vertical flotation column shells, integral support
brackets, internal baffle sets, internal
and external launders, sparger air header,
ports and accessories. Detailed design
and drafting of structural steel grillage
to support the extremely heavy (250 tons
each) flotation columns on existing foundation pedestals.
The flotation columns incorporate a unique 'tic-tac-toe' baffle configuration that improves laminar flow and contact
conditions within the column shell, increasing metal recoveries and copper concentrate grade considerably. The two cell
vertical flotation circuit, constructed at a cost of approximately $500,000 is expected to generate over $2
million per year in improved metals recovery. |
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Click for detail image |
| Project: |
Effluent
Clarifier and Clarifier Building |
| Location: |
Quesnel, BC |
| Client: |
Quesnel
River Pulp |
| Services: |
Detailed civil and structural design
of a large diameter cast-in-place concrete
effluent clarifier complete with building
foundations, launder walls and sump pits.
The clarifier vessel has a maximum retained
fluid height of over 6 metres, and is
designed to be crack-free under all operating
conditions. Seismic 'sloshing' of the
retained fluid, and the durability of
the concrete materials in an aggressive
industrial environment, were important
design considerations.
The clarifier itself was covered by
a large diameter, near round (16 sided)
steel framed structure, complete with
a central compression ring element. An
adjacent steel framed annex building contains
mechanical and electrical process equipment
including pumps, valves and control systems.
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Click for detail image
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