MICROFLUID APPARATUS FOR FINE GRANULAR MATERIALS THERMAL TREATMENT

The existing equipment possibilities for the fine-grained materials thermal treatment are very limited. Therefore a significant portion of the materials is considered to be waste, even though its qualities are satisfactory. In the research of fine granular material thermal treatment the apparatus working on the fluidization principles was developed and verified on the semi-operational scale. The microfluid furnace is conceptually new solution consists of autonomous fluidization chambers, which are arranged in counter-flow. The counter-current principle provides an integrated solution for fine-grained fractions thermal treatment including individual process phases in one equipment. Experimental microfluid furnace has 9 fluidization chambers providing drying, heating, calcination and cooling of the material. The magnesite calcination experiments were carried out on the furnace. Within the experiments a high quality product at low specific energy consumption was obtained.