Combined Drier for Effective Drying of the Ground Wood Pulp

Abstract

In order to intensify drying of disperse wood and vegetable materials to specified humidity parameters, a design of the effective manufacturing apparatus combining the elements of air-fountain drier and tube drier is developed. A two-stage drying process, which proceeds in this apparatus, ensures the removal of the main amount of moisture from the treated material in a severe temperature mode (600–700 °C) in a tube drier and considerably increases its residence time in an air-fountain cap providing the finite material humidity in limits of 8 – 12 %.