1Research on influencing factors of hard flotation tiny coal in Kailuan mining areaWANG Jie, DING Hua-qiong, GUI Xia-huiTest and Research1-5,92Research on effect of influence factors on key technical parameters of XJM - S45 flotation machineZHANG PengTest and Research6-93Effect of lignite microorganism on surface modification of fine coalWANG Li-yan, WANG Zhong-qi, CHEN Yu, ZHU Shu-quan, WU PengTest and Research10-144Research and application of combined process of classification and separation of coal with liquid- solid fluidized bedWU Chao-long, LI Yan-feng, ZI Tao, HAN Heng-wang, XIE Yan-jun, ZHANG Xiao-bo, ZHAO Wen-daTest and Research15-185Research on improved nozzle of bubble generator and two- phase flow based on numerical simulationCHEN Wen-yi, TANG Kai, SUN Bing, CHEN Xiao-dongTest and Research19-22,266Research on new dual - source driving movable sieve jigLIU Xiao-junTest and Research23-267Research on effect of smell removal of collector treated by activated clayCUI Guang-wen, WANG Le-ming, WU Jiang-ming, WANG Jing-faTest and Research27-298Measures of reducing medium consumption in Zhaogezhuang colliery coal preparation plantLIU Yan-pingTechnology and Experiences30-329Application of TBS - 3.6 teetered bed separator in Sanjiaohe coal preparation plantTAI Xin-ping, ZHAO Yong-shengTechnology and Experiences33-35,3910Research and practice on vibration and noise control for main workshop in Chengjiao coal preparation plantZHANG Yun-sheng, JI Ji-xingTechnology and Experiences36-3911Application of CSS coarse slime separator in separating coarse slime in jigging processLIU Yi, YU Zhi-heng, XU Yi, MENG Ye-sheng, ZHAO Xiu-fangTechnology and Experiences40-42,4612The renovation practice of slurry treating system in Chengjiao coal preparation plantHAO Chun-jian, JI Ji-xing, JING Lei-gangTechnology and Experiences43-4613Application of two section flotation and two stage dewatering of clean fine coal processes in Tianchen coal preparation plantJI Yu-hua, ZHAO Tian-bo, HAO Tian-feng, SUN You-sen, YIN Jian-chaoTechnology and Experiences47-49,5314Reform and practice of separation system in Zhongxing coal preparation plantGUO Wen-jun, REN Zeng-liangTechnology and Experiences50-5315Application of screw conveyor system preventing breakage of lump coal in Jining No.3 colliery coal preparation plantMA Shi-zhong, JIN Ji-yuan, YU De-fangTechnology and Experiences54-56,5916Renovation of coarse slime separation process at Renjiazhuang coal preparation plantWANG Hong, GE Xian-haoTechnology and Experiences57-5917Practice of coal slurry treatment in process of separating high sulfur coalCHEN Shi-peng, ZHU Gui-xu, ZHAO WeiTechnology and Experiences60-6218Research on reverse hand refuse picking technology in Jinhui coal preparation plantCHENG Ying-kun, YU Tao, LI YunIssue Discussion63-6519Think about utilizing clean coal of maximum yield principle to realize automatic control of coal separation process parameterZHANG You-junIssue Discussion66-6920A summary of extraction algorithms of froth features in slime flotationDING Li-hua, YANG Jian-guo, ZHANG Ze-lin, ZHAO Yue-minAutomation of Coal Preparation70-74 