Experience in Application of XLPD Extra Low-Profile Robotic LHD for Narrow Bedded Vein Mining at Mine No.8 of 'PIMCU' PJSC named after E.P. Slavsky

DOI: http://dx.doi.org/10.30686/1609-9192-2019-6-148-44-48

The paper presents the demonstration test results of the XLPD trackmounted low-profile LHD designed by DOK-ING for narrow bedded vein mining (m=1.6-1.8 m). These tests were performed in Mine No.8 of 'PIMCU' PJSC. The demonstration results proved the applicability of this equipment for the conditions of Mine No.8 due to reduced dilution, improved safety of mining operations, decreased volumes of both mined and processed ore keeping the metal production at the same level. The main economic effect of utilizing this complex can be obtained by cutting the metallurgical conversion costs.

Global Oil and Gas Market: basic trends

DOI: http://dx.doi.org/10.30686/1609-9192-2019-6-148-24-29

After several years of crunch , the oil and gas industry demonstrates signs of revival given the ramping up of U.S. oil and gas production and the sense of optimism that is sweeping the sector. In general, the industry feels much healthier than it did 12 months ago: the price of oil has rebounded. After appearing limited to a range between the mid-$40s and $50 per barrel, Brent crude is now trading above $60. The industry is thus recovering from the brutal last few years of weak prices. The fundamental challenge, of course, is the intrinsic volatility in the sector facing serious problems.

Management of Complex Stability Monitoring of External Dumps Made up of Soils with Low Bearing Capacity and Located on Weak Base for Conditions of PJSC «Mikhailovsky GOK»

DOI: http://dx.doi.org/10.30686/1609-9192-2019-3-145-15-19
УДК: 622.83

External dumps of PJSC «Mikhailovsky GOK» were formed on a weak watered base which presents the least favourable conditions to ensure their stability. Refuse rock was dumped in the controlled deformation mode. This method can be applied if enough free land is available and the mining equipment makes it possible to locate the dump outside the deformation zone. However, at the present time it does not seem possible to dump the refuse material in this way.

A Concept of Development Strategy for Gold Deposits in Southern Urals through Application of Innovative Geotechnologies

DOI: 10.30686/1609-9192-2019-3-145-21-24

Specific features of the Urals gold deposits at the mature stage of their development are considered in the paper. It presents principal provisions of a long-term project for time-phased implementation of lean operations at the ‘Noviy Kochkar’ Mining and Concentration Complex. A new concept of the strategy to develop gold deposit in the Southern Urals is based on unleashing the resource base potential through application of innovative geotechnologies and securing sustainable development of the company in the present-day context.

Current and Emerging Technologies in Development of Diamond Deposits

DOI: 10.30686/1609-9192-2019-3-145-26-31

Mining and geological as well as natural and climatic features of the primary diamond-bearing deposits in Yakutia create uniquely complex conditions for the mining operations. As a rule, efficient and most complete development of such deposits is only possible with application of innovative technologies. New technologies and design solutions are required to ensure safety and acceptable operating costs of further development of some deposits all the way down to the explored depths. Development of new geotechnologies for the pit reserves mining is becoming a priority task in academic research.

«Magnet for the Talent. A Success Vector»: Nosov Magnitogorsk State Technical University Celebrates its 85th Anniversary

DOI: 10.30686/1609-9192-2019-3-145-42-46

The article summarizes the 85-year history of the Nosov Magnitogorsk State Technical University, one of the 33 cornerstone Universities in Russia. It describes the University’s progress in International ratings, educational sphere, research activities and students’ self-administration. In 2019 the NMSTU is celebrating its 85th Anniversary. Enjoying world recognition and offering a wide range of modern competences to its students, the University and its staff set ambitious goals for the future.

Re-Lining of Large-Size Ball Mills

DOI: 10.30686/1609-9192-2019-3-145-58-59

The paper describes an innovative engineering solution to replace lining in large-size ball mills with the diameter over 7 m. The arrangements currently used for re-lining of such mills are considerably bulky and require a lot of open space for preparation. This approach aims to minimize the mill downtime caused by the relining activities. The author suggests replacing the mill lining with a hydraulically-driven manipulator installed on an extension platform with a device to deliver the lining inside the mill shell through the trunnion.

Justification of Possibility to Use CassetteHType Minesweeper for Prospecting and Sampling of Nodule Fields

DOI: 10.30686/1609-9192-2019-3-145-65-68

Prospecting and exploration of ferromanganese nodule fields, which are a valuable source of ferrous and non-ferrous metals, is characterized with a large number of unresolved problems. A particular attention should be paid to the detailed exploration phase which defines the site boundaries, as well as density, volumes and conditions of nodule deposition. The paper reviews equipment and process flows of bulk sampling and recognizes positive experience in application of the box-type dragharrow. A cassette-type minesweeper developed by the authors is offered aiming to improve sampling reliability, accuracy and efficiency. Engineering calculations of the minesweeper have been made and the efficiency of its application has been compared with other known types of sampling equipment as applied to various methods of nodule field sampling. It was established that the use of the cassette-type minesweeper improves the performance and decreases the sampling time.