MCM then converts the signal to
900 MHz and retransmits the data to
the base station located in the mineʼs
tyre bay via a network of solar-powered
repeaters installed around the mine site.
The data is monitored and analysed by
the TTT team based in the tyre bay and
is also transferred to Kal Tire’s central
server where it can be accessed through
the TTT console by registered
personnel.
Conclusion
Through the monitoring of vehicle
tyres over the years on mine sites,
Kal Tire has developed various
protocols and procedures that are used
in conjunction with the TTT system.
Trends can be spotted and acted upon
rapidly, the mine dispatch are notified
whenever there is an issue starting to
arise and avoidance procedures are set
in motion to avert a potentially critical
incident. The most recent of these
procedures is the trigger action
response protocol (TARP) that
manages warnings and alarms. This
will then initiate an emergency rapid
response protocol (ERRP) in the event
that the chamber temperature reaches
80˚C. This is the tyre manufacturer’s
chamber temperature threshold that
should not be exceeded in order to
prevent pyrolysis. Pyrolysis is the
spontaneous combustion of the air
inside the chamber with no visible
signs that the tyre is under duress.
This catastrophic event is ten times
more violent than a normal tyre
blow-out and can potentially result in
loss of life. Fortunately, due to the
procedures in place, this situation has
never arisen and it is extremely rare
that a tyre has heated up to 80˚C
triggering the ERRP, due to the early
warnings given by the TTT system.
In addition, with an increased focus
on the filling of OTR tyres with
nitrogen, TTT will be used to monitor
and record the long-term condition of
the nitrogen filled tyres on complying
sites. The data will then be analysed
along with historical data taken while
standard techniques were used for
inflation. This will help Kal Tire
produce reports that will give a very
good indicator for the benefits of
nitrogen filled tyres.
About Kal Tire
Kal Tire’s Mining Tire Group is a global leader delivering best-in-class
customised solutions that ensure maximum productivity for all mining tyre
service, supply and safety needs. The company operates on more than 100
mine sites across five continents and, with more than 1500 team members
operating globally, Kal Tire has built a reputation for innovation, reliability
and outstanding service.
Having an international reach with one set of safety standards and
operating processes across all mine sites, Kal Tire gives mining customers
peace-of-mind when it comes to one of the top three expenses of a mine’s
operating budget: its tyres. For over 40 yr, the group has been operating in a
vast array of conditions and climates and are able to confidently match a
mine operation's needs to the right tyre and services.
The company’s objectives remain simple: with the constant rise in
commodity prices, miners must strive to maximise the full.
Typical installation of Kal Tire's TTT system.
Live online monitoring provided by Kal Tire's TTT console.
44
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World Coal
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January 2016
