PROCESS AND APPARATUS FOR THE CALCINATION OF MINERAL MATERIALS REDUCED IN POWDER

摘要

THE INVENTION CONCERNS THE CALCINATION OF POWDERED MINERAL MATERIALS BY SUSPENSION IN A GAS CURRENT CONSTITUTED BY A MIXTURE OF A COMBUSTIBLE GAS AND A FUEL THE COMBUSTION OF WHICH PROVIDES THE NECESSARY CALORIES. /P P TO ALLOW. THE USE OF SOLID FUELS RICH IN ASH, NOT REACTIVE OR DIFFICULT TO CONDITION, THE FUEL IS CARBONATED IN A FIREPLACE WITH A FLUIDIZED BED 10 BY MEANS OF AIR INSUFFICATED FROM THE BOTTOM UP IN THE FLUIDISE BED 23 TO PRODUCE A GAS CLEAR THE BED UP BY DRAWING THE THINEST PARTICLES OF THE FUEL AND MIXING AIR AND THE MATERIALS TO BE CALCINATED WITH THIS GAS.