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原地浸析采矿技术在龙南稀土矿取得进展
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作者 周炳珍 《稀土信息》 1997年第2期9-9,共1页
1995年,在国家计委稀土办和有色总公司科技局支持下,江西龙南稀土矿以中南工业大学资开系汤洵忠高工提出的“自然压力渗透浸出、集液沟池回收母液、上清液闭路循环使用”的一整套“水封闭”工艺为依据,在首采采场和露天池浸工艺丢弃矿... 1995年,在国家计委稀土办和有色总公司科技局支持下,江西龙南稀土矿以中南工业大学资开系汤洵忠高工提出的“自然压力渗透浸出、集液沟池回收母液、上清液闭路循环使用”的一整套“水封闭”工艺为依据,在首采采场和露天池浸工艺丢弃矿石的残采采场进行了推广试生产。两采场总面积9820m^2,矿石量7.39万吨,注入电解质硫酸铵304吨,回收混合稀土氧化物61.775吨;产品中REO总量92.24%。 展开更多
关键词 原地浸析 稀土矿 采矿技术 池浸工艺 混合稀土氧化物 硫酸铵 沉淀稀土 大规模试生产 闭路循环 江西龙南
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Advanced run-out table cooling technology based on ultra fast cooling and laminar cooling in hot strip mill 被引量:8
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作者 刘恩洋 彭良贵 +3 位作者 袁国 王昭东 张殿华 王国栋 《Journal of Central South University》 SCIE EI CAS 2012年第5期1341-1345,共5页
In order to meet the severe requirements of market and reduce production costs of high quality steels,advanced run-out table cooling based on ultra fast cooling(UFC) and laminar cooling(LC) was proposed and applied to... In order to meet the severe requirements of market and reduce production costs of high quality steels,advanced run-out table cooling based on ultra fast cooling(UFC) and laminar cooling(LC) was proposed and applied to industrial production.Cooling mechanism of UFC and LC was introduced first,and then the control system and control models were described.By using UFC and LC,low-cost Q345B strips had been produced in a large scale,and industrial trials of producing low-cost dual phase strips were completed successfully.Application results show that the ultra fast cooling is uniform along the strip width and length,and does not affect the flatness of strips.The run-out table cooling system runs stably with a high precision,and makes it possible for the user to develop more high quality steels with low costs. 展开更多
关键词 hot strip mill ultra fast cooling laminar cooling run-out table cooling control model control system
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