Relationship between the intensity of grain release by an indented cylinder separator and the speed mode of operation

   Optimal performance of an indented cylinder separator relies on carefully selected settings and operating parameters. To enhance the cleaning efficiency, the authors conducted experimental studies to determine rational operating modes. The obtained results demonstrate that increasing the cylinder speed from 36.0 to 39.0 rpm at a feed rate of 1840 kg/h reduces residual mass by a factor of 2.77. At this feed rate, a free section of the cellular surface forms, reaching up to 0.75 m, which can increase residual contamination. Increasing the feed rate to 4420 kg/h reduces this free cellular surface to only 0.2 m. The authors observed that the effective speed ranges broaden as feed rates are increased. Within these ranges, grain separation intensity initially increases by 4.1 to 26 %, but then stabilizes due to less effective grain capture. Importantly, inclining the cylinder by 1° significantly equalizes grain separation intensity. This equalization minimizes process losses and reduces the risk of increased residual grain contamination under consistent operating conditions. By utilizing the established operating speed ranges for different loading values of an indented cylinder separator, one can ensure acceptable process losses, ranging from 0.99 to 2.38 %,

1. Tishannov N.P., Anashkin A.V., Emelyanovich S.V. Dynamics of the process of trier separation of the grain mixture at different operating modes. Science in Central Russia. 2024;3(69):16-28. (In Russ.) doi: 10.35887/2305-2538-2024-3-16-28

2. Tishannov N.P., Anashkin A.V., Tishannov K.N., Alshinayin H.J.J. Dynamics of separation of barley grains from the grain mixture. Science in the Central Russia. 2021;1(49):29-36. (In Russ.) doi: 10.35887/2305-2538-2021-1-29-36

3. Burkov A.I., Odintsov D.V. Optimization of the speed of indented cylinders with a polymer cellular surface. Tekhnika v selskom khozyaystve. 2008;4:49-51. (In Russ.) EDN: KAWKKH

4. Bekarov A.D., Gabaev A.Kh. Optimization of the rotation frequency of the cylindrical trier for the conditions of the Kabardino-Balkarian Republic. Izvestia Orenburgskogo gosudarstvennogo agrarnogo universiteta. 2023;1(99):106-110. (In Russ.) EDN: BYVPUU

5. Abiduev A.A., Radnaev D.N., Togmidon A.Yu., Shagzhiev A.D., Abiduev A.A. Barley seed grain cleaning under conditions Republic of Buryatia. ESSUTM Bulletin. 2023;1(88):46-52. (In Russ.) EDN: AFVYLQ

6. Medvedev A.V. Automation of grain cleaning machine control. Tendentsii razvitiya tekhnicheskikh sredstv i tekhnologiy v APK. Proceedings of the International scientific and practical conference. Voronezh. 2024. P. 240-245. (In Russ.) EDN: DUGONH

7. Mironenko D.N. Research on the functioning of an indented cylinder separator. Vestnik of Voronezh State Agrarian University. 2009;2(21):45-49. (In Russ.) EDN: LEVOWH

8. Abiduev A.A., Pekhutov A.S., Baldanov M.B. Barley seeds cleaning from hard-separable impurities. Dalnevostochniy agrarniy vestnik. 2022;3:74-80. (In Russ.) EDN: RVKSDJ

9. Meng X., Jia F., Qiu H. et al. DEM study of white rice separation in an indented cylinder separator. Powder Technology. 2019;348:1-12 doi: 10.1016/j.powtec.2019.03.013

10. Kim M.H., Park S.J. Analysis of broken rice separation efficiency of a laboratory indented cylinder separator. Journal of Biosystems Engineering. 2013;38(2):5-102. doi: 10.5307/JBE.2013.38.2.095

11. Zapevalov M.V., Kovalenko N.V., Redreev G.V. Technology for cleaning grain seeds from long impurities. Vestnik Omskogo gosudarstvennogo agrarnogo universiteta. 2022;4(48):200-206. (In Russ.) doi: /10.48136/2222-0364_2022_4_200

12. Tishaninov N.P., Anashkin A.V., Emelyanovich S.V. Assessment of the sensitivity of the trier grain cleaning process to operating modes. Science in Central Russia. 2024;1(67):23-31. (In Russ.) doi: 10.35887/2305-2538-2024-1-23-31