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二段破碎
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     二.
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     Two.
     .
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     PROCESS PROCEDURE FOR THE BAKING OF SECONDARY REFORMER
     转化炉烘炉工艺过程
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     COMPREHENSIVE UTILIZATION OF TWO\|STAGE PURIFIED RESIDUE
     净化渣综合利用
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     Impac Crushing of Coal
     煤的冲击破碎
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  two stage crushing
Ore was crushed using a two stage crushing system, ground with ball mills, and then cyanide-leached.
      


This paper has introduced the productive heap leaching experiment in the micrograined disseminated low-grade gold oxidized ore from Luolou gold mine in Lingyun County in Guangxi. The cyaniding heap leaching is adopted in the experiment. Its technological process is: crude ore-second order crushing-heaping-washing-spray leaching-charcoal absorbing-disabsorbing-electrolysising-smelt-ing. The experimental result is concluded as follows: selected ore quantity: 3231 t, with gold ore grade: 2.56g/t, baching time:...

This paper has introduced the productive heap leaching experiment in the micrograined disseminated low-grade gold oxidized ore from Luolou gold mine in Lingyun County in Guangxi. The cyaniding heap leaching is adopted in the experiment. Its technological process is: crude ore-second order crushing-heaping-washing-spray leaching-charcoal absorbing-disabsorbing-electrolysising-smelt-ing. The experimental result is concluded as follows: selected ore quantity: 3231 t, with gold ore grade: 2.56g/t, baching time: 48 days, tail cinder gold grade: 0.69g/t, gold leaching rate: 72.86% , gold recovery: 70.25% . This has made better economic benefic.

本文介绍了广西凌云县逻楼金矿微细粒浸染型金氧化矿石的生产性堆浸试验。试验方法采用氰化法堆浸,其工艺流程是:原矿石—二段破碎—筑堆—洗矿—喷淋浸出—炭吸附—解吸—电解—熔炼。试验结果:入选矿石量3231t,矿石品位Au2.56g/t,浸出时间48天,尾渣品位Au0.69g/t,金浸出率72.86%,回收率70.25%,回收黄金5735.24克。金生产单位成本为39.67元/克,获纯利润4.7万元,取得了较好的经济效益。

The raw material program and technological chain had been put forward in the artificial aggregate system of the Qimaling Hydropower Station,Meanwhile,the plan layout of workshops of the system and environmental measures had also been introduced.The paper could be as a good reference for other similar scale hydropower station under construction in two stage crushing technology.

介绍了骑马岭水电站砂石加工系统的料源规划、系统规划设计、系统工艺流程及环保措施。该加工系统采用的典型的二段破碎工艺,对中小型水电站混凝土骨料生产系统的设计具有一定的参考价值。同时,该加工系统在废水处理水回收利用及细砂与石粉回收、防尘、降低噪声,以及固体废弃物处置等方面,均采取了相应的环保措施,以减少其对施工人员和周围环境的影响。

 
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