Vol. 2 No. 17 (2025): INTERNATIONAL JOURNAL OF SCIENCE AND TECHNOLOGY
Articles

Constructive analysis of the process of separating cotton from large and small trash impurities

Published 18-12-2025

Keywords

  • raw cotton, separation technology, saw drum, grate, aerodynamic separation, loosening dynamics, impact energy, inertial differentiation, UXK cleaner, structural optimization, reduction of cotton losses, fiber damage, multi-stage cleaning, energy-saving technologies.

How to Cite

Constructive analysis of the process of separating cotton from large and small trash impurities. (2025). INTERNATIONAL JOURNAL OF SCIENCE AND TECHNOLOGY, 2(17), 3-10. https://doi.org/10.70728/tech.v02.i17.001

Abstract

this study analyzes the scientific basis of mechanical and aerodynamic approaches aimed at increasing the efficiency of separating raw cotton from large and small trash. It was established that in the traditional BCH-2M, CHX-3M2, CHX-5, and APT-12 cleaners, due to insufficient optimization of impact energy, inertial differentiation, grate geometry, and loosening dynamics, there is a technological imbalance between cleaning efficiency and fiber damage. In the study, a design model of a new generation UXK unit was developed that eliminates this problem; it combines multi-stage mechanical selection, an optimized grate profile, the impact-displacement mechanism of the saw drum-grate pair, and aerodynamic separation zones. Experimental analysis shows that the cleaning efficiency of the UXK machine has increased, cotton losses have decreased, and fiber damage has significantly decreased. The research results propose constructive solutions for achieving high quality, energy efficiency, and technological stability in the cotton ginning industry

References

  1. 1. Rajabov, O. I., Kurbonov, F. A., Abrorov, A. S., & Gafurova, M. Z. (2021, April). Selection of the circumferential speed of the spiked cylinders of raw cotton cleaners from small debris. In Journal of Physics: Conference Series (Vol. 1889, No. 4, p. 042056). IOP Publishing.
  2. 2. Ibodullayev, O. O., Rasulov, E. N., & Muxidinova, S. N. THE ROLE OF OPTICAL SENSORS IN OPTIMIZING THE TECHNOLOGICAL PARAMETERS OF COTTON CLEANING MACHINES Sh Fayziyev Bukhara State Technical University.
  3. 3. Abrorov, A., Fedorov, S., Rajabov, O., Kuvoncheva, M., & Muhammadov, M. (2021). Microstructural analysis of disc saws of fiber extraction machines. In AIP Conference Proceedings (pp. 20050-20050).
  4. 4. Fayziyev, S. H., Ibodullayev, O. O., Rasulov, E. N., & Muxidinova, S. N. TECHNOLOGY OF ENERGY-EFFICIENT CLEANING OF COTTON RAW MATERIAL USING A VIBRATING SET SURFACE.
  5. 5. Djuraev, A., Sayitkulov, S., Kholmirzaev, J., Haydarov, B., & Mustafaev, N. (2024, January). Substantiated parameters of multifaceted grates in the coarse cleaning zones of a cotton gin. In AIP Conference Proceedings (Vol. 2969, No. 1, p. 050027). AIP Publishing LLC.
  6. 6. Rakhmonov, H., Matyakubova, J., & Fayziev, S. (2025). Optimization of the processes of simultaneous transportation, drying and cleaning of raw cotton in screw dryers-cleaners. Modern Innovations, Systems and Technologies, 5 (3), 3018-3027.
  7. 7. Kurbanov, F. A., Temirov, A., & Sharopov, M. (2019). ROLLER GIN BLOWING BODY AND ITS INFLUENCE ON GINING PERFORMANCE. Internauca, (14-1), 71-73.
  8. 8. Djuraev, A., Sayitqulov, S., Nurboev, R., Xolmirzaev, J., & Berdimurodov, U. (2022). Analysis of full-factorial experiments on improving the cotton gin. Современные инновации, системы и технологии, 2(1), 69-75.
  9. 9. Fayziev, S., Rakhimov, K., Ibodullaev, O., & Qurbonova, S. (2021). New design of the cotton raw material transmission network to the drying drum. Scientific electronic journal “Matrix of scientific knowledge”, 66.
  10. 10. R.Kh. Rosulov. Justification and selection of parameters for the saw-and-grate system of a raw cotton cleaner for removing large debris. Diss... Cand. of Technical Sciences. Tashkent, TITLP, 2008, 112 pp.
  11. 11. Kh, F. S., Fatullaeva, S. I., & Kh, T. O. (2022). Theoretical and experimental study of the influence of temperature, humidity and density on the drying process of raw cotton. Eurasian journal of medical and natural sciences, Innovative Academy Research Support Center, 2 (01), 66-71.
  12. 12. Sayitkulov, S., Nurmatova, N., Sharipov, J., Salomov, A., & Saidova, G. (2024). Optimization of parameters on the combined cotton cleaning machine and analysis of cleaning efficiency. In E3S Web of Conferences (Vol. 508, p. 08020). EDP Sciences.
  13. 13. Fayziev, S. H., Fatullaeva, S. I., & Nazhmiddinov, I. P. (2023). Influence of density and temperature on moisture release rate during cotton raw material drying. In Fundamental and applied scientific research in the field of inclusive design and technologies: experience, practice and prospects (pp. 135-140).
  14. 14. Rakhmonov, K., Fayziev, S., Qodirov, M., Temirov, A., & Toyirova, G. (2023). Development of resource-saving technology that allows increasing the environmental sustainability of drying raw cotton. In E3S Web of Conferences (Vol. 390, p. 06019). EDP Sciences.
  15. 15. Rakhmanov, H. K., & Murodova, I. N. (2017). Fundamentals of improving the saw gin feeder to enhance the cleaning effect. Problems of Science, (1 (14)), 8-12.