Textile Journal of Uzbekistan


The article presents the results of a study of the effect of the polyhedral grate of the manufactured polymer material on the cleaning effect and on the mechanical damage of seeds. To conduct experimental studies, a bench installation was made at Pakhtasanoat Ilmiy Markazi JSC and experiments were conducted on raw cotton of the selection variety S-6524 of the 1st grade of class 2 with an initial weediness of 5.4% and a moisture content of 8.2%. The analysis of the obtained experimental data shows that, when ehamining the tetrahedral grate, the cleaning effect of the machines is 60.2%, and when researching 5, 6, 7 and 8 of the face grates, the cleaning effect of the machines is 59.6, respectively; 58.6; 56.1 and 53.2%. And in studies of 9.10, 11, 12, and 13 face grates, the cleaning effect of the installation remains almost unchanged and amounts to 50.0–50.2%. Analysis of mechanical damage to seeds shows that, when using 4-sided grate, mechanical damage to seeds is 1.8%, and when using 5-sided grate, mechanical damage to seeds was 1.6%, and when using 6-sided grate, mechanical damage to seeds was 1.0% , and a further increase in the number of granules to 7 and 8 mechanical damage to the seeds does not change significantly and is 0.8 ÷ 0.82%

First Page


Last Page


Included in

Engineering Commons



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.