Kimberlite deposit completion technology using a cable hoisting system
https://doi.org/10.21285/2686-9993-2019-42-4-495-501
Abstract
The objective of the study is to increase mining productivity and economic efficiency by introducing new technical-and-technological solutions for extracting and transporting the rock mass in the open-cast development of steeply dipping ore bodies, in particular at kimberlite deposits. The article analyzes the known technological schemes and mining equipment for extracting and lifting the rock mass from the lower horizons of deep quarries. A promising way to improve the technologies of developing steeply dipping ore bodies is to use sink zones with high vertical ledges. The author proposes a technology for kimberlite deposit completion using a mining equipment complex that includes an advanced milling machine and a cable hoisting system. The milling machine is equipped with a packing assembly that ensures continuous loading of soft containers with the rock mass without stopping the milling process when сhanging the containers under loading. The cable hoist system consists of three winches mounted on the day surface of the quarry, and a telpher with a gripper. The system lifts soft containers from the work platform of the deep zone to the transfer point at the intermediate horizon of the quarry, from where the rock mass is delivered by dump trucks to the surface. The proposed technical-and-technological solution enables non-stop extraction when completing the ore body. The lifting process has a low specific energy intensity and provides a minimum current overburden ratio, which enhances the efficient mining of the remaining reserves.
About the Author
A. Yu. Cheban
Mining Institute, Far East Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Docent, Leading Researcher, Laboratory of Geotechnology and Mining Thermophysics
51 Turgenev St., Khabarovsk 680000, Russia
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Review
For citations:
Cheban A.Yu. Kimberlite deposit completion technology using a cable hoisting system. Earth sciences and subsoil use. 2019;42(4):495-501. (In Russ.) https://doi.org/10.21285/2686-9993-2019-42-4-495-501
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