 | Be fair to yourself and your pocket – take care of
your booster pumps
Nov/Dec. 1999
Pump failures are more prevalent in some mines than others and more frequent on some
machines than others, and pump failures are generally less common where pumps are serviced
regularly ...
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| Be sure to use the best fan for the job
Dec. 1998
Some mines have opted for a hooded system for their dust suppression, wherein the
hood is integrated into the cutter boom and is connected to the scrubber by means of a
flexible duct. It is perhaps worth examining what happens when the system resistance is
increased on a typical axial flow fan curve ...
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| Beware the pitfalls of a centrifugal booster pump
Sept. 1998
The conventional centrifugal pump currently offered to coal mines is not only
rather costly but uses a bent axis hydraulic motor, which is susceptible to wear from
dirty oil. The rig developed by CDC, in addition to being considerably less expensive, is
much more accommodating to dirty oil supply ...
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| Latest round of 'Inline versus Bifurcated' debate
Dec. 1997
The debate on the relative merits, in terms of safety, of the inline and bifurcated
fan designs used on wet fan scrubber boxes mounted on continuous miners continues ...
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| For safety - bifurcated or inline?
June 1997
A bifurcated fan is inherently safer than an inline fan, which is always running in
a methane-laden atmosphere – true or false? ... |
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