INFLUENCE OF FEED ROLL GAP ON CLEANING PROPERTIES

The article is devoted to the improvement of feed rollers supplying cotton to cleaning equipment, and the effect of cleaning on the quality of the feed rollers is herewith studied. In this scientific work, it was experimentally substantiated that, only when the gap between the feed rollers is 300 mm, full retention of the cotton on the feed rollers and the ability to control the cotton processing procedure is fully achieved.Based on experiments, it has been proven that widening the gap between the feed rollers has a positive effect on increasing the spacing, reducing the density of the cotton fed into the drums, preventing damage to the cotton from breaking into small bits and pieces. As a result, the efficiency of cleaning from small and large impurities has increased.The cotton composition ratio also increased due to the increase in the number of single component seeds. One of the most important indicators was the decrease in the amount of free fiber by more than two times. The regression equations characterizing the relationship between the formation of free fibers and repetition of cleaning have been developed. It has been shown that the amount of free fiber formation in the feed rolls used in practice is large, which leads to a decrease in the percentage of fiber recovery from cotton.Analysis of the results obtained shows that one of the main sources of free fibers formation is the intermediate zone (gap) of rollers and pile drums, in which the density of cotton is the main factor of influence. Relevant conclusions and recommendations have been given.