Comprehensive Evaluation of Drum Dryer Flight Designs in The Matlab Environment

This article considers the comprehensive evaluation of flight designs used in drum dryers and the justification of a new three-section flight design. For the analysis, straight radial, inclined, 90° right-angled, 120° angled, hook-shaped, two-segment, optimized two-segment, three-segment, inclined-flight, notched/opening and curved/notched flight designs were selected. These designs were chosen on the basis of real technical solutions reported in literature and patent sources and were evaluated according to their ability to lift the material, redistribute it, disperse it into the gas stream, direct it along the drum, intensify heat and mass transfer, and limit aerodynamic resistance. The comprehensive analysis was performed using a heatmap, radar diagram, 3D surface plot and moisture-profile graphs. The results show that simple straight radial and inclined flights can effectively perform some individual functions, but their ability to simultaneously lift, redistribute and disperse the material into the gas flow is limited. The three-segment design and the proposed three-section flight have high compatibility coefficients in zones 2–4 of the drum and are therefore evaluated as the most suitable structural solutions for intensifying the drying process.

Drum dryer, three-section flight, heatmap

Mirsharipov R.H., Akhunbaev A.A. Research of Hydrodynamic Parameters of Drum Dryer // International Journal of Advanced Research in Science, Engineering and Technology. – 2020. – Vol.7, № 11. – P.15683-15689.

Tojiev R.J., Mirsharipov R.H., Axunbaev A.A., Abdusalomova N.A. Optimized dryer design based on system process analysis // Universum: technical sciences. – Moscow. 2020. – № 11(80). – P.59-65.

Tojiev R.J., Axunbaev A.A., Mirsharipov R.X., Mullajonova M.M., Yigitaliev M.M. Analiz protsessa sushki mineralnыx udobreniy v barabannom apparate // Universum: texnicheskie nauki. – Moskva. 2021. – № 8(89). – S.31-36.

Axunbaev A.A., Xusanboev M.A. Vliyanie vraщeniya sushilnogo barabana na raspredelenie materiala // Universum: texnicheskie nauki. – Moskva. 2022. – № 4(97). DOI: 10.32743/UniTech.2022.97.4.13333.

Axunbaev A.A. Optimizatsiya formы nasadki barabannыx sushilok // Universum: texnicheskie nauki. – Moskva. 2023. – № 6(111). DOI: 10.32743/UniTech.2023.111.6.15705.

Axunbaev A. Industrial Tests of Drying of Mineral Fertilizers in a Rotary Drum Dryer // International Journal of Materials and Chemistry. – 2023. – Vol.13, № 2. – P.28-33. DOI: 10.5923/j.ijmc.20231302.03.

Axunbaev A.A., Xusanboev M.A. Baraban nasadkasining optimal shaklini tajribaviy aniqlash // Nauchno-texnicheskiy jurnal FerPI. – Fergana. 2023. – Spes. vыp. № 3. – S.23-27.

Axunbaev A., Rajabova N., Siddikov M. Matematicheskaya model sushki dispersnыx materialov s uchyotom temperaturы materiala // Zbіrnik naukovix pras SCIENTIA. – 2021.

Akhunbaev A.A., Rajabova N.R., Madaminova G.I. Drying of sprayed dispersed materials // International Conference Dedicated to the Role and Importance of Innovative Education in the 21st Century. – 2022. – Vol.1, № 7. – P.184-191.