Methods of increasing the efficiency of dust-laden air cleaning from the aspiration system of the UHK cleaning unit

Termez Engineering-Technological Institute, Termez, Uzbekistan

^* Corresponding author: usanovabduhxakim@gmail.com

Abstract

The article covers the results of an analytical review of technology and technical means for cleaning dust-laden air released during the cleaning of raw cotton by the UHK cleaning unit; the air is taken into cyclones using an aspiration system including pneumatic lines, a fan and a conical cyclone. As a result, the drawbacks of the existing aspiration system for UHK cleaning units were identified; it was determined that the efficiency of the aspiration system for cotton cleaning units largely depends on the correctly chosen design of the diffuser, in which part of the dynamic pressure is converted into static pressure. A working hypothesis that allows reducing pressure losses in aspiration pipelines arising due to the irrational design of their elements has been developed. The chosen direction for further research consisted of determining the optimal diameter of the air duct, considering the speed mode of operation of the cyclone connected to it, which serves to clean polluted air emitted by the fan into the atmosphere, choosing the length of the diffuser, ensuring minimal losses of dynamic pressure, air speed in the narrow and wide sections of the diffuser in depending on the performance of the fan of the aspiration system of the UHK cleaning unit for cleaning raw cotton from small and large impurities.