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目前，选铜企业精矿脱水设备主要是以GN－40(使用年限10年左右）为主，它以脱水高效和过滤成本低而被广泛使用。内滤机的运转率和出力车是完成生产任务的重要指标，因此对于内滤机追求抗腐蚀、耐磨和密封性非常重要。但内滤机在使用中存在以下不足：（1）首轮电动滚筒在尾轮等
Currently, copper concentrates concentrate dehydration equipment is mainly based on GN-40 (service life of about 10 years) based, it is highly efficient dehydration and filtration costs are widely used. Internal filter efficiency and output car is an important indicator of the completion of production tasks, so the pursuit of internal filter corrosion resistance, wear and sealing is very important. However, the use of filter in the following deficiencies: (1) the first round of electric drum in the tail wheel