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苏联煤炭工业是在采用新型煤矿机械和新的采煤工艺系统的基础上提高煤炭生产效率的,近年来就研制矿井地质条件复杂的缓倾斜薄煤层综采设备做了大量工作。 许多煤矿机械研究所积极参加新型采掘设备的研制工作,已陆续研制出一批新型煤矿机械。其中如:投入批量生产的型掘进机组,该掘进机组可掘进断面积18米~2、岩层硬度6—10级的巷道(其中包括有突出危险的巷道)。由于分两次破岩(先用端面开口钎子,然后用锥形扩孔器),所以在主传导
The Soviet Union’s coal industry is to increase coal production efficiency on the basis of adopting new coal mining machinery and new coal mining technology system. In recent years, a great deal of work has been done on the development of fully mechanized mining equipment with gently inclined thin seam with complex geological conditions in mines. Many coal mining machinery institute actively participate in the development of new mining equipment, has developed a number of new coal mining machinery. Among them are: type boring units put into mass production, which can drive tunnels with a cross-sectional area of 18m ~ 2 and rock formations with a hardness of 6 to 10 (including those with prominent danger). Breaking the rock twice (using the end face of the opening of the brazing rod, and then using a conical reamer), so in the main conduction