New energy-saving method for drying maize seeds
Ya. Kyrpa, O. F. Stasiv, V. O. Kulyk, Yu. Yu. Kupar, V.Yu. Cherchel
The study aimed to analyze the known methods of energy-saving drying in chamber grain dryers, to study the technical and technological parameters of a new energy-saving drying method, and to establish its influence on the sowing and yield properties of seeds of maize hybrids and their parent components, to determine the technical-economic efficiency of drying when using different types of fuel. Various technical and technological energy-saving methods during drying of corn seeds are investigated, such as two-stage drying of cobs with drying in grain, the return of spent heat carrier to the drying zone (recirculation), application of maximum allowable temperatures of heating of cobs (intensive drying). To study a new method of drying maize hybrids and their parent components used a typical chamber dryer SKP-10 in combination with a new heat generator TPG-1/25, for burning plant materials. During the complex operation, the temperature and ventilation regimes, parameters of the working and spent heat carrier's relative humidity, drying speed, dryer productivity, and quality indicators of dried seeds were determined. Sowing qualities and yield properties of dried corn seeds at the new complex were at the level of control, and in some cases, exceeded it. For control were seeds were dried in a laboratory dryer at 39 ? with forced air circulation and indoors at 20-25 ?. The new drying method's technical-economic efficiency is determined, and the significant economic effect of using corn rods as fuel is established.
Keywords: chamber dryer, heat generator, types of fuel, technological process, seed quality, economic efficiency
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