FIELD: heating.
SUBSTANCE: raw humid material is loaded via charging chute 6 into aggregate 4 for drying in pseudo-liquefied layer, and pseudo-liquefied layer 7 is formed by ascending gas flow created by high temperature gas fed from bottom part of the aggregate 4 for drying in pseudo-liquefied layer. Raw humid material is discharged through discharging chute 8. Part of high temperature gas is supplied over first bypass pipe 9 branching from gas main 2 to space close to gas outlet 5 in top part of the aggregate 4 for drying in pseudo-liquefied layer. Part of high temperature gas is blown over second bypass pipe 11 branching from the first bypass pipe 9 to the charging chute 6.
EFFECT: prevented sticking or sedimentation of raw humid material to charging chute.
8 cl, 8 dwg
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