1Analysis of the flotation efficiency evaluation methodFU Dongxu, LI Haitao, ZHANG Xiaotao, YUE LirongOverview1-62Finite-element analysis of the airbag of flexible air-chamber coal jigCHEN Yinghua, CUI Zhe, GUO Yongchun, LI Haisheng, WANG Guanghui, KUANG YaliExperiment & Research7-123Experimental study on recovery of kaolinite from flotation tailings through removal of iron using flotation processDENG Mingrui, LIU HongnaExperiment & Research13-184Experimental study on reduction of moisture of flotation concentrate with hydrophobic modifying filter aidZHANG Jiewen, LIU Yi, YANG Xiaohong, LIU ChunfuExperiment & Research19-235Study on accuracy of segmentation of images in refuse X-ray identification processYIN Jianqiang, ZHU Jinbo, ZENG Qiuyu, YANG Chenguang, ZHANG Yong, SHI QinghuiExperiment & Research24-296Study on drying characteristics of medium-grained and fine bituminous coal at low temperatureLIU Kangxiong, GUO Fan, GUO Liangliang, XIAO LuExperiment & Research30-337Application of the heavy-medium slime washing process for separation of anthracite at No.2 Mine Coal Preparation PlantLI Jian, QIAN WenpingOperation & Practice34-388Analytical interpretation of the key points involved in calculation of medium flow of 3-product heavy medium cycloneZHANG Jun, WANG Hainan, MA Zhijun, LI Bingchen, XIE DengfengOperation & Practice39-479Study on rewashing of crushed middling product of heavy medium separation system and related process renovation at Xinzhuang Coal Preparation PlantWANG Fa, ZHAO JiangtaoOperation & Practice48-5810Practice of renovation of the filter press system at Heilonggou Coal Preparation PlantLIU Jinming, SUN Jingbiao, QI Heng, ZHANG Xiaosong, ZHANG JunqiangOperation & Practice59-6311Practice of making local optimization and technical transformation of the process system of power coal washeryCHENG GuoliOperation & Practice64-6712Techniques applied for comprehensive control of rise of dust in operation of the dry cleaning system and its associated equipment at Donghuantuo Coal Preparation PlantKE JianOperation & Practice68-7113Practice of renovation of coarse slime recovery system at Zhengtong Coal Preparation PlantLI XiaoyingOperation & Practice72-7614Application of distributed control system in large coal preparation plantRONG MeiAutomation & Intelligence77-8015Study and design of simplified centralized control system of coal jigging plantLIN GuofuAutomation & Intelligence81-8516Real-time safety monitoring system for closed coal conveying way in coal preparation plantHOU JingAutomation & Intelligence86-9017Design and application of the coal slime water treatment equipment networked change control systemZHAO Xiaohong, ZHU Shuai, YANG Chen, PENG ChenAutomation & Intelligence91-97