4. Sizing dry process furnaces

4.1 Theoretical method

The proposed calculation method is a two-stage process:

• first, an initial assessment of the furnace diameter is made, based on the desired production (P ₁ ), using the law of material transport inside a rotating, inclined tube ;

• in a second step, reconciling the heat exchange capacity and the energy requirements for clinkerization enables a second evaluation of the kiln output (P ₂ ); this evaluation is based on the diameter estimated above, taking an arbitrary kiln length of 16.4 D _i , of which 12 D _i ...