On Record Length and Productivity of Highwall Mining the V.D. Yalevsky Mine

The use of frequency converter and active rectifier of voltage for the power quality improvement in coal longwalls

“…Enhancement of productivity and performance in coal longwalls is achievable via transition to longwalls up to 250-400 m long and by increasing installed capacity of longwall machine system [1,2]. For example, it is succeeded to raise the rated capacity of SL shearer-loaders to 1200-2200 kW and of scrape conveyors Anzhera 38 and PF 4/1032 up to 1600-2500 kW.…”

The Analysis of Technologies of Recovery Rooms Creation in Flat Coal Seams

“…Годом позже, в августе 2018 года, предыдущий рекорд был побит и составил 1,627 млн тонн угля. Лава был оснащена комплексом DBT, в который входили: механизированные крепи DBT 220/480 и 2400/5000, очистной комбайн SL-900, забойный скребковый конвейер SH PF 6/1342, дробилка SK 11/14 [1]. Повсеместное В работе [3] приведена таблица результатов анализа эффективности проведения монтажнодемонтажных работ на шахтах АО «СУЭК-Кузбасс».…”

Methane Emission Control at the High-Productive Longwall Panels of the Yalevsky Coal Mine

“…Most of the being mined coal seams in Russia are gas-bearing and their intensive mining requires effective methane emission control including ventilation, degassing and isolated removal of the methane-air mixture. The use of reliable high-productive equipment at Russian coal mines has significantly increased the longwall productivity and provided record levels of productivity [1][2][3][4][5]. However, as the depth of mining operations increases, the natural gas content of coal seams gradually increases and the methods used for methane emission control are often not effective enough.…”

“…This paper includes the analysis of the experience of methane emission control during the longwall mining of the series of gas-bearing coal seams at the V. D. Yalevsky mine. In 2017-2018, several longwall productivity world records 1.4-1.56 million tons per month [1] were set at the V. D. Yalevsky mine during the coal seam 50 mining. The purpose of the research is to study the mining and geological factors that determine the effectiveness of methane emission control at high-productive coal panels and to develop recommendations for improving the efficiency of methane emission control techniques during intensive mining of gas-bearing coal seam series.…”