
314 Industrial Air Quality and Ventilation
© 2010 Taylor & Francis Group, LLC
The spread of the dust plume depends largely on the relative location of the dust
formation source with respect to the effective wind direction. This is well illustrated
by the dump car unloading example from the pellet storage site at the Zhelezorudnaya
railway station in Rudny town, Kazakhstan. Here, wind speed measured 2 m/s. A
single 85-ton dump car took 45 seconds to unload. Considering that unloading hap-
pened in such a short time, this source was classied as instantaneous. In this case,
the dust cloud was affected by injection pressure and by external environ ...