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根据中国有色金属工业总公司和广西区科委下达平桂矿务局的《低品位冲积砂锡矿船采法工业试验》任务,北京矿冶研究总院和平桂矿务局机械厂合作,研究了使用单位对YT—7750型跳汰机的改进意见,在YT—7750型跳汰机的基础上进行五个方面的改进,试制成功了DYTA—7750型和PYTA—7750型液压径向跳汰机。通过260小时的性能测试及清水连续运转试验,证明改进型跳汰机的机械—液压传动系统运转正常,跳汰运动曲线达到设计要求。1985年7月24—26日,中国有色金属工业总公司南宁公司和广西壮族自治区有色金属工业公司召集有关部门的领导和专家、研制和使用单位的代表共45人,对设备的设计、制造和性能进行了评审。
According to the China Nonferrous Metals Industry Corporation and the Guangxi Science and Technology Commission Pinggui Bureau of Mines issued “low-grade alluvial tin mining shipbuilding industry test” task, Beijing Mining and Metallurgical Research Institute and Pinggui Mining Bureau Machinery Factory cooperation, research The use of units on the YT-7750-type jig improvement advice, based on the YT-7750 jig five aspects of improvement, trial success DYTA-7750 and PYTA-7750-type hydraulic radial jig machine. Through 260 hours of performance test and continuous running test of water, it is proved that the mechanical-hydraulic transmission system of the improved jig operates normally and the motion curve of the jig reaches the design requirement. From July 24 to July 25, 1985, Nanning Corporation of China Nonferrous Metals Industry Corporation and non-ferrous metals industry company of Guangxi Zhuang Autonomous Region convened leaders and experts from related departments, and a total of 45 representatives from the research and development units used the design, manufacture and Performance was evaluated.