分析了二峰山铁矿选矿厂工艺流程存在的问题，并通过技术改造提高金属回收率，取得了显著的经济效益。
This paper analyses the problem of the technological flowsheet for concentractor, Er-fengshan Iron Mine, and obtain obvious economical profit by improving technology to increase metal recovery.
通过技术改造使选矿工艺流程及设备日趋完善，提高了设备运转率和选矿回收率。
After the technological transformation, the ore processing flowsheet and equipment was improved, and the equipment operation rate and ore dressing recovery rate was enhanced.
针对大吉山钨矿的原次生细泥处理流程进行了改造，应用新技术新产品，提升选矿生产水平。
The process technology of the primary and secondary fine slime in Dajishan tungsten mine was transformed to improve the process technique.
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