FCA-2500型雾化-跌落式煤浆预处理器的研究与应用  

Study on FCA-2500 spray-drop coal slurry pre-processor

作　　者：张立华 周国亮[2] 朱金波[3] 江明东 任利勤 吴大为 

机构地区：[1]北京国华科技有限公司,北京101300 [2]淮北矿业(集团)有限责任公司临涣选煤厂,安徽淮北235141 [3]安徽理工大学材料科学与工程学院,安徽淮南232001

出　　处：《洁净煤技术》2011年第3期89-92,共4页Clean Coal Technology

摘　　要：介绍了FCA-2500型雾化-跌落式煤浆预处理器的工作原理和结构。乳化剂雾化、煤浆与浮选剂跌落式混合试验表明风动喷射式雾化器的雾化情况好于起雾盘,煤浆跌落式混合的滑板结构满足了不同粒径煤粒的工艺要求。FCA-2500型雾化-跌落式煤浆预处理器的工业应用试验表明:在分选指标相似的情况下,雾化-跌落式煤浆预处理器的浮选剂单位用量(风压0.06～0.08 MPa)比矿浆准备器节省了20%以上,节油效果明显。Coal slurry pretreatment is a very important process during coal flotation. Introduce the mechanism and structure of FCA-2500 spray-drop-coal slurry pre-proeessor. Emulsifier atomization experiment as well as coal slurry and flotation agent cascading mixed expermient show that the effect of pneumatic injection atomizer is better than fogging dics. The sliding plate used in cascading mixed experiment can meet the requirement of mixing coal particles with different sizes. The industrical-scale testing results show that compared with the previous coal slurry pre-processor,under similar separation index, the air pressure is between 0.06 MPa and 0.08 MPa,the FCA-2500 pre-processor can significantly save flotation reagent consumption more than 20%.

关 键 词：雾化 跌落 浮选剂 煤浆预处理 

分 类 号：TD94[矿业工程—选矿]