Kinetics of quartz sand and its mixtures drying by microwave radiation

Purpose. Kinetics research and description of drying by microwave radiation mechanism development quartz sand its mixes with sodium silicate in limited quantity water steam medium. Methodology. Distilled water, solute have been used this research. Study has performed on samples weighing 200 g. Mixtures structuring power 700W frequency 2.45 GHz air saturated 1 g Accuracy temperature measurement is 1, mass 0.02 Realized investigation kinetics specified as specimen weight change dependence moisture evaporation from mixture rate vs. duration. Dependencies built the results video recording corresponding chrono-gravimetric measurements data digitalization. during heating changes registration an interval 1560 s. Samples average estimated calculation based their determination first 2 minutes radiation. Findings. For time, mixtures medium (structured SMS-process) studied. SMS-process material balance, analytical developed. This application allows sand-sodium-silicate structured maximum to calculate when using (silicate module 2.83.0) for cladding structuring. It established that according extraction them takes place three stages at ~100, 100108 125138 . Maximum appropriate recommended ~125 Exceeding leads hydrated releasing form condensation colder working surface model-rod rigging. Resulting condensate restructuring contact equipment places and, accordingly, sharp quality deterioration prepared molds rods. manufactured rods stabilization, it pre-dry cladded field least 3 before SMS-process. Originality. obtained Influence number basic parameters regularities established. Practical value. Research will be useful terms ideas expanding about processes accompany granular materials drying, well technologies fine-grained dielectric development, creating new capillary-porous media, etc. under influence.