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水电部杭州机械设计研究所设计,郑州水工机械厂制造、作为三峡工程用混凝十搅拌楼“七五”攻关中间样机的五强溪4×3m~3预冷混凝土搅拌楼评议会,由三峡重大办和能源部电力机械局共同主持,于1990年10月23日至25日在五强溪水电建设工地召开。专家们认为:该楼总体技术构思正确、布置合理,具有骨料混合上料、楼顶二次筛分、连续风冷以及称量精度较高等特点。该楼已正式进入实用阶段,改进完善后定型生产的新型4×3m~3预冷混凝土搅拌楼在其他大型水利水电工程中也可配锵使用,可取代进口搅拌楼,每台约可节约外汇300～400万美元,有较大的经济效益和社会效益。
Ministry of Water and Electricity Hangzhou Mechanical Design Institute, Zhengzhou Hydraulic Machinery Factory, as the Three Gorges Project with 10 mixing concrete mixing tower “mid-five” research Wuqiangxi 4 × 3m ~ 3 pre-cooling concrete mixing council, from Hosted by the Three Gorges Major Office and the Electric Power Machinery Bureau of the Ministry of Energy, was held at the Wuqiangxi hydropower construction site from October 23 to October 25, 1990. Experts believe that: The floor of the overall technical concept of correct, reasonable layout, with aggregate mixing feeding, roof second screening, continuous air cooling and weighing accuracy and so on. The building has officially entered the practical stage, improve the sound after the final production of new 4 × 3m ~ 3 pre-cooling concrete mixing plant in other large-scale water conservancy and hydropower projects can be used with Qiang use, can replace the import mixing plant, each about saving foreign exchange 300 ~ 4 million US dollars, have greater economic and social benefits.