"This article provides an analysis of current news about the development of
the cotton industry in the country. It is also based on theoretical research and analysis
of cleaning processes used in foreign countries, as well as ways to improve the
efficiency of cleaning the pile drum, which is the main working body of equipment for
cleaning cotton from small impurities. It is based on the need for theoretical
calculations of its cleaning surface to increase the cleaning efficiency of fine-grained
cleaning equipment. The results of theoretical research on the calculation of useful
surfaces of mesh surfaces based on the calculation of the surface of the pile and the
mesh located at the bottom, which are currently used in the republic and abroad. The
need to develop new structures and their calculations were made to increase the use of
mesh surfaces up to 100%."