CALCULATION AND DESIGN OF TAPE DRYERS WITH ACTIVE HYDRODYNAMIC REGIME

Abstract

Summary. Belt dryers, using in the food industry, are inferior in many technical and economic indices foreign counterparts due to low technical level. The aim of the work was to develop a methodology for calculating belt dryers with active hydrodynamic regime on the basis of theoretical and experimental data on the kinetics and hydrodynamics. The executed calculation allowed to design the belt dryer with an active hydrodynamic mode. The offered dryer has the following advantages: high operational reliability due to the lack of numerous cycles of deformation and a considerable abrasion of mesh plates; achievement of uniform drying of a product owing to use of soft, sparing modes of oversleeping and hashing at the maximum preservation of particles of a processed product at the expense of a rational design of a gravitational device for agitating; universalization of a design of the dryer and its adaptation for drying of various products, differing physicomechanical properties (a corner of a natural slope, granulometric structure, adhesion, etc.); lack of need for readjustment of a design of the dryer for the products, differing physicomechanical properties (a corner of a natural slope, granulometric structure, adhesion, etc.) ; use of a being poured layer reduces a balling of a dried-up product and prevents formation of agglomerates.