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近日,山东新汶矿业集团新阳能源公司煤矿新型选煤双层振动分级筛技术获国家知识产权局实用新型专利。该技术将煤矿选煤双层振动分级筛的上下层筛面均分为筛孔不等的上下两段,其中上层的上段筛面由圆钢按一定等距间隙排列而成;上层
Recently, Shandong Xinwen Mining Group Xin Yang Energy Coal Mine new coal-fired double-vibrating grading sieve technology by the State Intellectual Property Office utility model patents. The technology will be coal dressing coal double-deck vibration screening sieve upper and lower sieve surface are divided into upper and lower sieve sieve unequal upper and lower sieve, which the upper sieve from the round steel is arranged at equal intervals from the upper;