FIELD: industry of building materials. SUBSTANCE: method for heat treatment of lump and granular material, mostly cement mix, involves counterflow, direct-flow and cross-flow filtration of heat carrier effected by alternating the delivery into the layer, and withdrawal of heat carrier. At the initial stage of heat treatment the velocity of heat carrier in the direction of counterflow and direct-flow fitration is increased 2-3 times as compared with gas velocity for cross-flow filtration. EFFECT: higher efficiency. 1 dwg, 1 tbl
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