02. Savin V. Yu., Ozherelev V. N., Nikitin V. V. Separating Light Impurities from the Combed Heap in the Adapter Case

DOI: 10.15507/2658-4123.034.202403.370-387

Separating Light Impurities from the Combed Heap in the Adapter Case

Vladimir Yu. Savin
Cand.Sci. (Eng.), Associate Professor, Associate Professor of Chair of Heat Engines and Hydromachines, Kaluga Branch of Bauman Moscow State Technical University (2 Bazhenova St., Kaluga 248000, Russian Federation), ORCID: https://orcid.org/0000-0002-2476-9768, Researcher ID: D-4378-2019, This email address is being protected from spambots. You need JavaScript enabled to view it.

Viktor N. Ozherelev
Dr.Sci. (Agric.), Professor, Professor of the Chair of Technical Systems in Agribusiness, Environmental Management and Road Construction, Bryansk State Agrarian University (2a Sovetskaya St., Kokino 243365, Russian Federation), ORCID: https://orcid.org/0000-0002-2121-3481, Researcher ID: AAD-8298-2022, This email address is being protected from spambots. You need JavaScript enabled to view it.

Viktor V. Nikitin
Dr.Sci. (Eng.), Associate Professor, Head of the Technical Service Chair, Bryansk State Agrarian University (2a Sovetskaya St., Kokino 243365, Russian Federation), ORCID: https://orcid.org/0000-0003-1393-2731, Researcher ID: AAD-7368-2022, This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract
Introduction. It is possible to increase the separating of loose grain on the lattice bottom of the combine harvester feeder house by removing most of the light impurities from the combed heap using an inertial cleaning system built into the combing adapter body.
Aim of the Study. The study is aimed at developing an inertial system for separating light impurities in the combing header body and optimizing its main parameters.
Materials and Methods. The object of the study was a large-scale model of a pneumatic cleaning device to simulate the motion of air and components of a combed grain heap inside the combing adapter body. It was a two-factor experiment with three variations of the air flow velocity (4.5; 5.5; 6.5 m/s) and the width of the air channel (0.26; 0.29; 0.32 m). The studies were conducted on a combed heap of Moskovskaya 56 wheat with a moisture content of about 12%. As a parameter for optimization and response function, a portion of the combed heap was selected from the body of the installation with an air flow.
Results. ocity has a greater effect on separating glumes than the width of the air channel. A simultaneous increase in both factors leads to an improved separation. At the same time, if increasing the air flow velocity ensures a stable increase in the proportion of the combed heap and is limited only by the air velocity at which grain appears in the combed heap along with the glumes, then changing the channel width allows achieving the parameter optimal value.
Discussion and Conclusion. The use of an inertial cleaning system makes it possible to remove almost completely light impurities from the combed heap. The optimal parameters of the device are: channel width 0.28...0.3 m, air flow velocity 6...6.5 m/s.

Keywords: combine harvester, combing adapter, combing of standing plants, inertial cleaning system, separation of light impurities, air flow velocity

Acknowledgments: The authors express their gratitude to anonymous reviewers, whose objective comments contributed to improving the quality of the article.

Conflict of interest: The authors declare that there is no conflict of interest.

For citation: Savin V.Yu., Ozherelev V.N., Nikitin V.V. Separating Light Impurities from the Combed Heap in the Adapter Case. Engineering Technologies and Systems. 2024;34(3):370–387. https://doi.org/10.15507/2658-4123.034.202403.370-387

Authors contribution:
V. Yu. Savin – analyzing literary data, preparing the original version of the text and finalizing the text, conducting experiments and processing their results.
V. N. Ozherelev – scientific guidance, formulating the basic concept of research, general management of experimental research, conducting a critical analysis of the results and formulating conclusions.
V. V. Nikitin – literary and patent analysis, revision of the text, formation of general conclusions, final revision of the article.

Submitted 08.04.2024; revised 07.06.2024; accepted 13.06.2024

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