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为解决大倾角薄煤层安全高效综采技术难题,四川华蓥山广能公司自主研制了MG200/495-QWD内牵引悬臂式双滚筒采煤机、ZY3500/07/15Q型防倒防滑板式顶梁掩护液压支架、SGZ730/2x200型中双链双驱动刮板输送机等综采设备,并在雷公山煤矿1121工作面进行了现场工业性试验。试验结果表明,工作面“三机”设备配套合理,开采机械自动化程度大幅提高,成功实现了倾角小于45°、厚度小于1 m的大倾角薄煤层综合机械化开采;试验期间工作面安全推进580m,累计产煤16.5万t,工作面最大月产量3万t。
In order to solve the technical problem of safe and efficient fully mechanized coal mining in steeply pitched coal seam, Sichuan Huayang Mountain Guangneng Company independently developed MG200 / 495-QWD internal-towed cantilever double-drum shearer, ZY3500 / 07 / 15Q skid-proof skid-beam Cover hydraulic support, SGZ730 / 2x200 double-chain double-drive scraper conveyor and other fully mechanized mining equipment, and conducted an on-site industrial test at Mine Coal Mine 1121. The test results show that the working face "three machine 580m, a total of 165,000 tons of coal, working face maximum monthly output of 30,000 t.