1China's coal preparation undertakings over the past 7 decades-retrospect and prospectYANG Junli, YANG Maoqingoverview1-7,122Washability curve plotting methods-analysis and future developmentHAN Mingjun, HONG Xuelioverview8-123Study of the effect of flocculant on centrifugal dewatering of coarse-grained cleaned slimeCHEN LeiExperiment & Research13-174Study of the technology for online monitoring of a multiple of pulp property-related parameters of fine coal flotation systemZHAO Huanyu, YE E, DENG Xiaowei, ZHAO JifenExperiment & Research18-21,265Experimental study on reflotation of flotation tailingsSHI YingxiangExperiment & Research22-266Study on surface electrical property of solid particles in coal slurry waterLI FeiExperiment & Research27-29,337Study of the magnetic fading of magnetite powder for coal preparation useDUAN Haipeng, GUO Yuming, ZHANG Dongpeng, ZHANG LinweiExperiment & Research30-338Application of the ultrahigh-capacity heavy medium cyclone at Huaibei Mining CompanyHUANG Haifeng, HUANG Jianyu, OU Zhanbei, WU Chaodang, YU YidongExperiment & Research34-399Application of the SSC800 sizing crusher at Wudong Coal Preparation PlantDING YongExperiment & Research40-42,4710Practice of technological upgrading of Jinhuagong Coal Preparation PlantHUANG GuodongOperation & Practice43-4711Quantitative interpretation of several hot points at issue in relation to heavy medium separation process from the perspective of medium circulation process flowsheetWEI ZhongkuanOperation & Practice48-52,5612A preliminary study of the key factors influencing the fine coal flotation performanceFENG YangOperation & Practice53-5613Practice of adding coarse middling product rewashing link in coal jigging processFENG JianjunOperation & Practice57-59,6314Application of the automatic agent dosing and emulsion control system at Lyujiatuo Coal Preparation PlantWU DelinOperation & Practice60-6315Property of coal slurry water and factors affecting flocculating settling of solid particles in slurry waterJI WanleiOperation & Practice64-66,7016Application of vibrating screens in renovation of Lingxin Coal Preparation PlantSONG ShuanglongOperation & Practice67-7017Adjustment and control of liquid level of medium tank and density of medium suspensionLIU ChangchunOperation & Practice71-73,7618Structural design of large-sized transfer point with subsurface structureYE GanOperation & Practice74-7619Application of the stacked-type high-frequency vibrating fine screen at Qixing Coal Preparation PlantZHANG Longxin, GE XianhaoOperation & Practice77-7920Application of the PLC-based and touch screen controlled teetered-bed separator at Yanjiahe Coal Preparation Plant in northwest China's Shaanxi ProvinceLIU XinAutomation & Intelligence80-83,88 