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为突破倾角60°~70°中厚煤层综合机械化开采技术难题,四川华蓥山广能公司自主研发了MG500/1150-QWD型电牵引双滚筒采煤机、SGZ764/315型工作面刮板输送机、ZZ4200/15/36JD型工作面液压支架和ZTHJ14300/16/28型支撑掩护式端头支架等综采设备,并在绿水洞煤矿3212(Ⅱ)段工作面进行了现场工业性试验。试验结果表明:工作面综采设备配套合理,设备防倒、防滑、防飞矸等安全性能大幅度提高,成功实现了60°~70°中厚煤层综合机械化开采,年产量达到45万t以上,取得了显著的安全经济社会效益,推广应用前景广泛。
In order to overcome the technical problems of comprehensive mechanized mining with medium-thick coal seams with a dip angle of 60-70, Sichuan Huayang Guangneng independently developed MG500 / 1150-QWD electric traction double drum shearer and SGZ764 / 315 face scraper conveyor ZZ4200 / 15 / 36JD working face hydraulic support and ZTHJ14300 / 16/28 support cover type terminal support. The site industrial test was carried out in the working face 3212 (Ⅱ) of the section of Lvshuidong Coal Mine. The test results show that the safety of fully mechanized coal mining equipment is reasonable and the safety performance of anti-down, anti-skid and anti-gangue is greatly improved. The comprehensive mechanized mining of medium-thick coal seam of 60 ° ~ 70 ° has been successfully achieved with an annual output of more than 450,000 tons , Has made significant security economic and social benefits, promote the application of a wide range of prospects.