Improving the operation of a drum grain dryer with justification of the low-temperature mode parameters
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Файли
Дата
2020
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
Анотація
The proposed engineering and tech-nological solutions are aimed at improv-ing the operation of a low-temperature drum grain dryer by using a combined mechanical vibration exciter, with the further justification of low-temperature regime parameters. Existing vibration technologies imply the high-temperature drying of food grains with further utili-zation of spent heat carrier for reheat-ing it. In this case, the high-temperature drying of cereals and seed crops (grains, onions, etc.) does not make it possible to maintain high germination, emphasizing the need for low-temperature treatment, which, in this case, reduces the efficien-cy of spent heat carrier. Therefore, to improve the efficiency of the drying pro-cess and technology, it has been pro-posed to employ vibration low-frequen-cy technologies that ensure seed quality.The trajectory and the kinetic ener-gy of the drum container with a com-bined mechanical vibration exciter have been calculated for the improved vibratory drum grain dryer. The ratio-nal vibration intensity for seed dry-ing providing the following kinetic characteristics has been established: vibration speed, to 0.03 m/s; vibration acceleration, 30 m/s2; vibration inten-sity, 2.6 m2/s2; at amplitude vibration not exceeding 2 mm. It has been also established that the intense warming of a barley layer occurs at a tempera-ture of 50 °C and a humidity of 13.5 %, the final temperature is 42.4 °C, and, at 40 °C, is, accordingly, 35.4 °C. This has confirmed that the low-tempera-ture drying of barley seeds of the vari-ety “Stalker” (Ukraine) takes place during the periods of constant and falling drying speed characterized by a high level of germination (95...93 %).
Опис
Ключові слова
cereal crops, grain dryer, drum container, kinetics, combined mechanical vibration exciter, vibration intensity, vibration speed, зернові культури, зерносушарка, барабанний контейнер, кінетика, комбінований механічний віброзбудник, інтенсивність вібрації, швидкість вібрації, кафедра автоматизації та комп'ютерних технологій систем управління
Бібліографічний опис
Improving the operation of a drum grain dryer with justification of the low-temperature mode parameters / V. Pazіuk, V. Dub, O. Tereshkin, A. Zahorulko, I. Lebedynets, D. Pankov, A. Hotvianska // Eastern European Jornal of Enterprise Technologies. – 2020. – Vol. 5, № 8 (107). – P. 24–30. (Energy-saving technologies and equipment).