Mixed-type technology of crystal mineral mining

A mission of the crystal mineral mining industry is creation and improvement of new and conventional technologies that provide maximum preservation of natural quality of crystals. It is possible to enhance mining efficiency by integrating rationally technologies and equipment with regard to natural properties of individual areas within a deposit. This can considerably reduce the loss of mineral quality in the course of mining and can save the extraction cost. In Russia the conventional technology of kimberlite mining includes drilling-andblasting, which affects integrity of diamonds. In the meanwhile, blast free mining gradually finds wider application with the use of different design cutters, rotary excavators and other equipment. Regarding kimberlite, which is a high-value and high-strength ore, the effective extraction is possible via combining different mining methods and equipment in different zones of a deposit. This article reviews the mixed-type technologies of crystal mineral mining using different sets of extracting machinery, water-assisted mining, blasting and rock loosening (softening) techniques. The authors propose a mixed-type technology of underground mining of primary diamond deposits, including mechanical cutting in areas of high-value ore and moderate blasting in the rest rock mass, with generation of a perimeter protection layer with drainage piping for by-pass of brines from upper lying aquifers. Furthermore, the article puts forward a method of selective preparation of kimberlite ore for mining.

Keywords: kimberlite ore, integrity of crystals, loosening, extraction, cutters, excavators, special softening techniques, technologies.
For citation:

Cheban A. Yu., Sekisov A. G., Khrunina N. P., Vasyanovich Yu. A. Mixed-type technology of crystal mineral mining. MIAB. Mining Inf. Anal. Bull. 2022;(7):55-67. [In Russ]. DOI: 10.25018/0236_1493_2022_7_0_55.

Acknowledgements:

The research used the resources of the Scientific Knowledge Sharing Center supported by the Ministry of Science and Higher Education of the Russian Federation, Project No. 075-15-2021-663.

Issue number: 7
Year: 2022
Page number: 55-67
ISBN: 0236-1493
UDK: 622.271
DOI: 10.25018/0236_1493_2022_7_0_55
Article receipt date: 03.03.2022
Date of review receipt: 28.04.2022
Date of the editorial board′s decision on the article′s publishing: 10.06.2022
About authors:

A.Yu. Cheban1, Cand. Sci. (Eng.), Leading Researcher, e-mail: chebanay@mail.ru, ORCID ID: 0000-0003-2707-626X,
A.G. Sekisov1, Dr. Sci. (Eng.), Chief Researcher, e-mail: sekisovag@mail.ru, ORCID ID: 0000-0001-5780-6150,
N.P. Khrunina1, Cand. Sci. (Eng.), Leading Researcher, e-mail: npetx@mail.ru, ORCID ID: 0000-0001-8117-0922,
Yu.A. Vasyanovich, Dr. Sci. (Eng.), Professor, e-mail: vasyanovich_2011@mail.ru, Far East Federal University, 600091, Vladivostok, Russia,
1 Mining Institute, Far Eastern Branch of Russian Academy of Sciences, 680000, Khabarovsk, Russia.

 

For contacts:

A.Yu. Cheban, e-mail: chebanay@mail.ru.

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