Location: Finland
Customer: Sandvik Mining
Key Benefit: Improved efficiency
Case study
Requirement
Surface top hammer drill rigs can only
operate reliably if the dust they generate is
removed from the path of the drill to prevent
the drill string from jamming. However,
the dust cannot simply be exhausted, as
respirable particles present a significant
health and safety hazard. Sandvik Mining, a
global equipment and tool supplier, solves
the loose dust problem by integrating
compressors and patented jet pulse dust
collectors directly on their surface top
hammer drill rigs.
Dust-laden air flows into sock-shaped filter
bags, where the dust collects, or "cakes,"
on the outside. Timed blasts of compressed
air shake the cake into the collector so it
can be discarded safely. Frequent jet pulse
cleaning of the filter bag requires fast acting,
long lasting valves to control the air pulse
Solution
IMI Buschjost valves help Sandvik keep their
dust collectors operating at peak efficiency
by:
l Opening in milliseconds so air pressure
builds quickly to deliver an intense burst
that cleans the filter bag most effectively
l Reducing energy consumption
l Being explosion-proof up to hazardous
area 1/21
l Operated by a unique one-piece
diaphragm rather than a spring
l Performing consistently across a
temperature range from -40°F to 284°F
(-40°C to 140°C)
The Sandvik dust collection system
can be used anywhere in the world to
protect workers from dust regardless of
temperature. Using the same valves across
the complete range of blast hole drill rigs
simplifies ordering specifications.
For more information go to:
www.norgren.com/us/mining
Photo courtesy of Sandvik Mining
© Norgren, Inc. 2015
Dust filter valves make drill rigs
safer, more efficient
Engineering
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