Modeling the Interaction of Fiber Bundles with Airflow and Aerodynamic Correlations in Fiber Cleaners

Abstract

The modernization of process control methods, the development of automated methods for designing equipment and technologies, and the development of automated control systems for the cotton processing process. Currently, due to the improvement of machines for cleaning cotton fiber, which are developed according to the technology of primary processing of cotton, one of the urgent issues is to ensure the production of high-quality fiber. Taking this into account, it is necessary to conduct a constructive analysis of the fiber cleaning equipment and develop an effective design. In view of this, this study was aimed at improving the aerodynamic parameters of a fiber cleaner on the basis of theoretical and applied research by creating and experimenting new saw blade construction.  In process of the research, methods are used optimization by theoretical statistics, evaluation and target electronic programs, theoretical and applied mechanics, higher mathematics and vibration theory. Aerodynamic equilibrium of a freely rotating saw cylinder due to the presence of friction forces arising between the saw blades and air and atmospheric pressure cannot be overcome by centrifugal forces acting on the air mass during rotation. This justification makes it possible to explain the reason for the industry's refusal of the cleaning rate at 1000 min^-1 and its transition to 1500 min^-1.  For the normal operation of the fiber cleaning machine, it is necessary that the saw cylinder, taking air on the cleaning arc. The conducted studies show that the dependence of the reduced velocity of air particles depends on the polar angle practically depends on a linear law, and an increase in air velocity in the initial arc of entry in the zone of the inter-core space also leads to an increase in the velocity when particles exit space, as well as the absolute velocity of air particles in the inter-core space non-linearly depends on the polar angle