Heat load in a ledging stope at free state geduld gold mine
Date
2015-01-19
Authors
de Jager, Ernst Jakobus
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Abstract
The purpose of this study is to gain an understanding of the dynamics
pertaining to beat loads in an underground ledging stops. The
results of an experiment is compared to that of HRATFLOW and
discussed.
The results of the experiment concluded that heat flow from rock in
the scope contributed 92,7% of the total heat load. The remainder
was made up from heat flow from men, material and machinery.
Ventilation air passing through the stope removed 79,3 % of the heat
produced. Chilled service water used in the stope removed 15,8% of
the beat while the remainder was removed by compressed air.
A 2,0®C rise in the air temperature was observed during the main
blast. This rise, in temperature was due to the use of explosives.