BMH Systems has developed an Air Heating System for aggregates, which can reduce heating costs up to 50% due to the fact that the energy transfer is better and complete. It's simple and efficient.
The gas furnace is connected to a fan with high static pressure. The air is heated by the furnace and then blown, by the fan, through diffusers installed at different levels inside the bin. The hot air will heat the sand and crushed stone to a predetermined temperature and the thermo-switches installed in every bin compartment will send a signal to stop the heating in the individual compartments when it reaches the set temperature.