Textile Journal of Uzbekistan


In the article, it is noted that in the technology of cleaning raw cotton from weed impurities, research has been conducted on the creation of cleaners and the production cleaning line, Engineering Science and Materials: Technology of cotton and textile industry 2 Textile Journal of Uzbekistan №2/2019 but the issues of the vertical layout of the cleaning sections have not been sufficiently addressed so far. Based on the analysis of previously conducted practical and theoretical studies, the authors obtained theoretical regularities describing the process of efficient extraction of small weed impurities from raw cotton. The obtained results allow us to establish the speed of the drum and the angle of its circumference by the mesh s urface, at which the required degree of loosening of the raw cotton is ensured and at which small weed impurities are effectively released. At the result of complex research, an innovative version of the cleaner with the arrangement of spike-slatted drums according to the “Z” scheme has been developed, which allows the cotton to carry out an unstressed movement, excluding the counter impact effects. The unidirectional rotational speed of the spike drums allows to eliminate bottomhole situations in the machine. In this case, the circumference angle of the spike drum with the mesh surface is more than 180 ° and unstressed trajectory of the movement of raw cotton is carried out during its cleaning. During the processing of raw cotton in the new vertical cleaner, the natural quality indicators of the processed raw cotton are preserved to the maximum. After the development of a new vertical cotton cleaner, the authors proposed a new classification of raw cotton cleaners from small weed impurities.


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