Direct Heat Drying, Moving Solids Bed

**Semantic type:** Laboratory Procedure

**Definition:** Heat transfer is accomplished by direct contact between the wet solids and hot gases. The vaporized liquid is carried away by the drying gases. Solids motion is achieved by either mechanical agitation or gravity force, which slightly expands the bed enough to flow one particle over another.

**Synonyms:** - Direct Heating, Moving Solids Bed