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This article introduces the design features of original loading mode of MPS coal mill and proposes that using technology of electro-hydraulic proportional to improve the loading mode. The original loading mode exists many defects. The improvement combines the hydraulic loading system with electronic technology so that the deficiencies of original system are solved and the automatic degree of coal mill loading mode is improved.

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Potamocorbula laevis)、中国绿螂(Glaucomya chinensis)、焦河篮蛤(Potamocorbula ustulata)和羽须鳃沙蚕(Dendroneris pinnaticirrus)。大型底栖动物年平均密度 为269.3 ind./m 2 , 年平均生物量为129.61 g/m 2 。12个站次的丰富度指数(D)、均匀度指数(J')和Shannon-Wiener多样 性指数(H')平均值分别为1.81 ± 1.38、0.