Authors: A.S. Nosenko, A.A. Domnitskiy, V.V. Nosenko, I.A. Kirsanov

Title of the article: Theoretical research of the operation of the transfer bunker with gravitational loading of material

Year: 2022, Issue: 3, Pages: 23-30

Branch of knowledge: 05.05.06 Mining machines

Index UDK: 622.619.7

DOI: 10.26730/1816-4528-2022-3-23-30

Abstract: The paper considers technical solutions for tunneling transfer bunkers developed on the basis of the use of a hydraulic drive of translational action and horizontal unloading of the destroyed rock mass. To solve the problem of loading the transfer bunker from the stationary state of the mining machine, structures with a variable angle of inclination of the chute, providing its gravitational loading, have been proposed. The goal is formulated, and the mathematical modeling of the process of filling the transfer chute with bulk material is carried out. The variable factors influencing the loading process are determined. The method for determining the maximum possible and actual volumes of bulk material in the chute of the transfer bunker with gravitational loading has been substantiated, with the aim of developing an engineering technique for choosing its rational parameters. The main regularities of the behavior of bulk material are established, qualitative and quantitative dependences are obtained to determine the actual volume of the material on the angle of inclination φ, the type of material characterized by the angle of repose φ0, the angle of friction along the surface of the gutter μtr, the angle of internal friction ρ0. The final mathematical model for determining the mentioned indicators is represented by a system of equations in the form of a calculation algorithm. The physical picture of the behavior of bulk material in the implementation of gravitational loading of the transfer bunker has been studied. The calculations made it possible to establish rational values of the angle of inclination of the bunker chute to the working soil, at which the maximum volume of material in the reloader chute is achieved.

Key words: transfer bunker gravitational loading gutter filling rational angle of inclination

Receiving date: 13.01.2022

Approval date: 14.05.2022

Publication date: 01.07.2022

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