Mining machinery for thin bed ore bodies and technology of its application
https://doi.org/10.21285/2541-9455-2019-42-2-194-200
Abstract
The purpose of the study has been to create a compact and mobile excavating machine that allows permissible-dilution mining of thin bed strata and seams with different rise angles, and thus, cleaning-up of the mineral reserves both in quarries and underground mines. The article analyzes the known mining machinery and technologies used to extract mineral raw materials from thin bed seams in both opencast and underground mining. Geohods are considered promising mining machines as they make it possible to create significant pressure on the face by using the workings’ contour as a support structure for the power loads. The paper presents a geohod structure developed for mining mineral reserves in thin bed ore bodies, and the technology of its application. It is an autonomous device consisting of a frame with guides and hydraulic cylinders, and double disc cutters with supporting sheets and pushers. The double disc cutters of the geohod create pressure on the face due to the frame expansion in the workings, the loosened rock mass being removed with a pneumatic conveying system. Thus, the machine structure is simplified in comparison with the known geohod structures. The power supply and control of the geohod are realized from an external module located on a quarry face or in an underground mine working. The layout of the geohod mill unit allows rectangular cross-section workings, resulting in a high extraction factor. The extraction technology using geohods provides an economic ground for cleaning-up the reserves of thin bed ore bodies.
About the Author
A. Yu. Cheban
Far Eastern Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Researcher, Laboratory of Geotechnology and Mining Thermal Physics
51, Turgenev St., Khabarovsk, 680000, Russia
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Review
For citations:
Cheban A.Yu. Mining machinery for thin bed ore bodies and technology of its application. Earth sciences and subsoil use. 2019;42(2):194-200. (In Russ.) https://doi.org/10.21285/2541-9455-2019-42-2-194-200
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