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中文摘要：
采用深锥相似模型动态沉降实验及流变参数测定方法研究深锥浓密机压耙原因．结果发现造成深锥浓密机压耙一方面是由全尾砂进料浓度和絮凝剂添加量波动造成全尾砂絮凝沉降效果不佳而引起的；另一方面是间歇式充填排料引起深锥中料浆浓度分布差异性增强，进而导致料浆流变参数突变引起的．通过对深锥压耙机理的研究，为深锥正常运行及事故预测和排除提供理论依据．
英文摘要：
The reasons for the pressure rake of deep cone thickeners were studied On the basis of deep cone model dynamic settlement test and rheological parameters measurement. It is found that there are two reasons leading to the pressure rake of deep cone thickeners. The first is poor flocculation sedimentation caused by the fluctuations of incoming tailing concentration and flocculant dosage; and the second is the slurry＇s rheological parameters mutation resulting from the difference of deep cone slurry concentration distribution caused by intermittent filling discharge. This research on the pressure rake of deep cone thickeners can provide a theoretic basis for deep cone normal operation, accident forecasting and getting rid of accidents.
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