中国第三代FJC系列煤用喷射式浮选机的应用实践

Field application of the 3rd-generation FJC series jet type coal flotation machine in China

介绍了拥有中国自主知识产权的第三代FJC系列煤用喷射式浮选机的充气性能和工艺技术指标;其充气均匀系数和充气容积利用系数分别达到90·36%和100%;选煤厂生产实践表明,FJC系列浮选机的各项工艺指标均优于机械搅拌式浮选机,分选选择性好,处理能力大,电耗低,尤其适合于低浓度、大流量的浮选入料。

Since the successful introduction of the jet flotation cell in the 80s of the last century,extensive theoretical and experimental work has been continuously conducted for the optimization and renovation of the structural parameters of the trough,aerator-agitator mechanism,the pattern of pulp flow in cell and the pulp feeding mode of this kind of cell. Based on the result of the study and through optimum selection of a pulp circulating pump capable of working with a higher efficiency and longer service life in collaboration with the specialized pump producer,the 3rd-generation FJC series jet flotation cell (FJC cell for short) was successfully developed. Now,7 sizes of the FJC cells are available,with a unit volume per cell ranging from 4m3 to 20m3 (See Table 1). These cells are now in operation at 130-odd coal preparation plants.