Patent ID: 7562465

Claim:
Process for drying sticky materials in a single rotating drying means characterized in that the process comprises the steps: a) establishing a ring shaped bed of material in the processing chamber of the single rotating drying means wherein said ring shaped bed comprises an amount of material M(t)=∫p dV with a moisture level of F(t)=1/M ∫pf dV where F(t)<f g with f g being the glue phase lower limit, and b) that to this amount M(t) is added an amount of wet material m i with a moisture content f l , where f i >f h , where f h is the glue phase upper limit, and c) that the relationship between m i *f i and M(t)*F(t) is regulated so that F(t)<f g , and d) that sufficient fast mixing is established to maintain the mixture of said ring shaped bed and said added wet material below the glue phase lower limit f g so that f(X,t)<f g .