THE INFLUENCE OF BASIC PARAMETERS OF SEPARATING CONVEYOR OPERATION ON GRAIN CLEANING QUALITY
Journal Title: INMATEH-Agricultural Engineering - Year 2019, Vol 57, Issue 1
Abstract
The rational succession of technological operations of all-purpose grain cleaning machines was substantiated at the Department of Agricultural Engineering at Central Ukrainian National Technical University. The original design of a separating conveyor used in the first stage of the proposed cleaning scheme was created. The experimental separating conveyor allows extracting large impurities before feeding the grain mass to aspiration, reducing the resistance of the system and creating optimal conditions for air cleaning. The objective of our research was to identify rational parameters and operating modes of the suggested separating conveyor. The objective was achieved by studying the influence of the basic parameters of the conveyor: the inclination angle α, sieve hole diameter d, buckets velocity v, as well as the specific loading of the sieve width unit qB on one of the most important qualitative indicators which is grain separation fineness. The fineness is characterised by the content of full-value grains in fodder waste. The experimental device and methodology for laboratory research were developed to identify the most influential factors on the separation fineness. During the research, the matrix of the full factorial experiment of the 24 type was implemented. The basic level and intervals of factors variation were chosen based on the analysis of theoretical studies results and experimental research preliminary data. The obtained regularities confirmed the efficiency of the suggested design and allowed identifying the rational parameters of the separating conveyor to ensure acceptable separation fineness of grain.
Authors and Affiliations
Oleksii Vasylkovskyi, Kateryna Vasylkovska, Serhii Moroz, Mykola Sviren, Larysa Storozhyk
Keywords
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