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矿井回采工作面装备高效采煤机械与综采机组,以及工作面产量的增长,大大提高了对采煤设备可靠性的要求。矿井设备可靠性的经济实质在于改善如增加产量、提高劳动生产率和降低成本这样一些技术经济指标。 乌克兰西部煤炭生产联合公司契尔沃诺格拉德斯克矿井群开采的煤层,厚度在0.6～1.78米范围内变化。围岩为砂岩、砂质页岩和泥质砂页岩,地质条件良好。由于列沃夫斯科—沃伦斯克煤田各矿井煤层底板等高线复杂,有地质破坏带,矿井采区长度都不大(400～700米)。因此,
Coal mining face equipped with efficient mining machinery and fully mechanized mining units, as well as the growth of face production, greatly improving the reliability of coal mining equipment requirements. The economic realities of mine equipment reliability lie in improving some of the technical and economic indicators such as increasing output, improving labor productivity and reducing costs. Coal seams that are mined in the Chernivtsi Gladys Mine Group, a joint coal production company in Ukraine, vary in thickness from 0.6 to 1.78 meters. Surrounding rocks are sandstone, sandy shale and shale shale, with good geological conditions. Due to the complex coal seam floor contour lines in the coal mines of the Lvovsk-Volensk coal field and the geological destruction zone, the length of the mine area is not large (400-700 m). therefore,