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本文详细分析了太西选煤厂主选跳汰机在使用过程中存在的主要问题。通过对其排料系统进行自动化改造，经过半年多的运行表明，改造后的系统明显提高了精煤产率，减轻了工人的劳动强度。
This paper analyzes in detail the main problems in the use of the main jig at Taixi Coal Preparation Plant. After more than six months of operation, the discharged system was automatically transformed. It shows that the upgraded system obviously improved the yield of refined coal and reduced the labor intensity of the workers.