To download article.DOI: 10.15507/2658-4123.031.202103.414-429
Studying Grain Flow Immersion into Liquids of Various Densities Based on the Methods of Experiment Design
Aleksey V. Saitov
Junior Researcher in the Winter Rye Laboratory, Federal Agricultural Research Center of the North-East Named after N. V. Rudnitsky (166a Lenin St., Kirov 610007, Russian Federation); Postgraduate Student of Engineering Faculty, Vyatka State Agricultural Academy (133 Oktyabrskiy Prospekt, Kirov 610017, Russian Federation), Researcher ID: B-7315-2019, ORCID: https://orcid.org/0000-0003-0266-4727, This email address is being protected from spambots. You need JavaScript enabled to view it.
Vasily A. Sysuev
Scientific Director, Federal Agricultural Research Center of the North-East Named after N. V. Rudnitsky (166a Lenin St., Kirov 610007, Russian Federation), Academician of RAS, D.Sc. (Engr.), Professor, Researcher ID: B-8519-2019, ORCID: https://orcid.org/0000-0002-1172-005X, This email address is being protected from spambots. You need JavaScript enabled to view it.
Viktor Е. Saitov
Senior Researcher of the Laboratory for Field Agriculture, Federal Agricultural Research Center of the North-East Named after N. V. Rudnitsky (166a Lenin St., Kirov 610007, Russian Federation), D.Sc. (Engr.), Professor, Researcher ID: B-6098-2019, ORCID: https://orcid.org/0000-0002-5548-8483, This email address is being protected from spambots. You need JavaScript enabled to view it.
Introduction. In addition to grain, a grain heap of rye may contain poisonous ergot sclerotia. Modern grain cleaning machines do not isolate ergot sclerotia in one technological process because of the similarity of physical properties in linear dimensions. Isolation of ergot sclerotia from rye grain in one technological process is possible through the use of aqueous solutions of inorganic salts. The purpose of the study is to determine the optimum elevation of the loading hopper relative to the liquid surface. The data obtained contribute to increasing the quality of the technological process of the machine being developed.
Materials and Methods. The paper considers the delivery of rye grain flow from the loading hopper outlet into the liquid by varying the specific grain load, liquid density and the delivery height. To set up the experiments, the experiment design methods have been used. The experimental data have been processed using the statistical package Statgraphics Plus 5.1.
Results. The estimation of the effective elevation of the loading hopper outlet relative to the liquid surface when delivering grain flow has been carried out. There have been obtained regression models for the fraction of grains, which did not submerge and rose up to the liquid surface with air bubbles.
Discussion and Conclusion. It has been found that the density of the aqueous salt solution has a significant effect on the percentage of grains, which did not submerge and rose up to the liquid surface with air bubbles. The smallest values of at different density of the liquid and specific grain load are achieved at a grain delivery height 56.0 ∙ 10–3 m.
Keywords: grain of winter rye, ergot sclerotia, experimental design method, aqueous salt solution, liquid surface tension, analysis of variance
Conflict of interest: The authors declare no conflict of interest.
For citation: Saitov A.V., Sysuev V.A., Saitov V.E. Studying Grain Flow Immersion into Liquids of Various Densities Based on the Methods of Experiment Design. Inzhenernyye tekhnologii i sistemy = Engineering Technologies and Systems. 2021; 31(3):414-429. DOI: https://doi.org/10.15507/2658-4123.031.202103.414-429
Contribution of the authors:
A. V. Saitov – reviewing and analyzing scientific sources, conducting practical experiments, design graphic material.
V. A. Sysuev – formulating the main concept of the study and finalizing the text.
V. Е. Saitov – writing the draft and drawing the conclusions.
All authors have read and approved the final manuscript.
Submitted 14.04.2021; approved after reviewing 16.05.2021;
accepted for publication 25.05.2021
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