Research of heat and mass transfer during drying of conversion lime carbonate in a tube-dryer

Abstract

Research of heat and mass transfer during drying of conversion lime carbonate in a tube-dryer

Dolmatova M.O., Dolmatova J.A., Solovjeva-Gogoleva L.V.

Incoming article date: 28.11.2016

The article presents the results of researches of heat and mass transfer in the flow of the gas-suspension of conversion lime carbonate in a tube-dryer. For the first time equations for determining the influence of initial air temperature at moisture content in a tube-dryer, the influence of air temperature on heat rate are received. The research results can be used to design pipes-dryers for large-tonnage productions of conversion of calcium carbonate. Experiments of researches of heat and mass transfer in the flow of the gas-suspension of conversion lime carbonate were carried out on the tube-dryer with an internal diameter to 0.069 m, length 4.8 m. Along the axis of the pipe on the rod vertically mounted discs, the first disc below the auger to 0.6 m, the second – above the auger to 0.7 m and further 1 m, total 5 disks.

Keywords: conversion lime carbonate, drying, tube-dryer