Kinetics of the filtration drying of match splints

For energy-efficient drying of match splints, it is necessary to ensure the minimum duration of the process, the efficiency of moisture extraction and the preservation of the quality of the material. The filtration drying method was chosen for the research. In this work, the influence of the following process parameters on the drying kinetics was determined: the height of the stationary layer of the material (150 mm, 200 mm, 250 mm, 300 mm, and 350 mm), the temperature of the heat agent (40, 50, 60, 70, and 800С) and the velocity of the heat agent through the layer of dispersed material (0.18, 0.21, 0.23, 0.26, and 0.29 m/s). Kinetics of the filtration drying of match splints was studied. Obtained dependences allowed determining the moisture content of the material in the process of drying match splints in periods of complete and partial saturation of the heat agent with moisture. The equation for determining the duration of drying in the first and second conditional periods was derived. Correlation dependence between experimental data and calculated values was given. The average relative error did not exceed 8.5%, which makes it possible to use the obtained dependences for design calculations of drying installations.