【摘要】 通过分别测定不同比重段的青山烟煤煤粉中部分重金属元素Cd,Co,Pb ,Cu和Ni以及三态硫的含量 ,采用回归分析法经交互验证建立了这些重金属元素与三态硫关系的模型 .该模型对青山烟煤不同比重段煤粉中的重金属元素含量的预报结果令人满意 .更多还原

【Abstract】 Based on the determination of the contents of several heavy metal elements Cd, Co, Pb, Cu, Ni and three species of sulfur of different specific gravities of Qingshan bituminous, the regression models of three variables were established to fit the data of the several heavy metal elements and three species of sulfur in coal by means of cross test. These regression models were used to predict these heavy metal elements in individual parts of coal with different specific gravities. The results were satisfied.更多还原