1Characteristics and selection of power coal washing equipmentZHANG Zhen, XIE Guangyuan, ZHOU Guanghua, XIA WenchengOverview1-62Innovative development and application of China's heavy medium cyclone coal washing technologyYANG MaoqingOverview7-133Notes on the process water concentration measuring methods specified in the national standard GB/T 35051-2018《Grade for Closed Process Water Circuit in Coal Preparation》ZHANG Xianxian, REN Liqin, YANG Chengyu, WU DaweiOverview14-194Status quo of the work on the challenging points in fine coal flotation and some viewpointsLI BaomingOverview20-295Study of the influence of surface moisture on effects of air classification of wet fine coalCHEN Xiaoguo, WANG Yuling, YANG JianguoExperiment & Research30-346Study of the technology for in-depth separation of the slime generated in coal preparation plants in Lu'an Mining AreaCHENG Zhihong, SHEN LiangExperiment & Research35-407Analytical study of the properties and compatibleness of the clean lean coal products of different separation systemsTANG Shuai, SUN Zhanlong, XU Xiuli, GUO Peirui, HU Liang, HOU Jinpeng, WU ChenglinExperiment & Research41-458The occurrence form of sulfur in coal and the law of the generation of sulfur dioxide during heatingLI Wei, ZHU Xiaofeng, SHEN Guoxin, ZHOU LeiExperiment & Research46-529Study of flotation pulp mixing and conditioning based on turbulent flow enhanced energy-density adaptation technologyZHANG Kai, LIU YouguoExperiment & Research53-5810Study on optimization of coal flotation agent emulsification parametersZHOU Zongfeng, ZHAO Qing, GAO Guangyu, LIU FengExperiment & Research59-6311The TGS intelligent gradient-fluidization dry separator applied by Huaibei Mining GroupOU Zhanbei, ZHANG WeiOperation & Practice64-6912Practice of reducing medium consumption at Changping Coal Preparation PlantGONG GuOperation & Practice70-7413Technical transformation of the flotation system at Guotun Coal Preparation PlantSHAN HongkeOperation & Practice75-7914Practice and technical transformation of the coarse slime separation process at Pingmei No.8 Mine Coal Preparation PlantLYU Jiawei, ZHANG Guangwei, WU Erdong, DING JiyuOperation & Practice80-8415Application of intelligent control technology in fine coal flotation process controlZHAO Xiaohong, ZHANG Mingming, WEN ZhipingAutomation & Intelligence85-9116Design and application of the sieve bend automatic cleaning mechanismFANG QiAutomation & Intelligence92-9517Study of the schemes for washing coal of varying properties coming from multiple seams in a blended mannerSHI Xuefeng, GOU Xiaodong, ZHAO Wei, WANG ZhangguoAutomation & Intelligence96-102 