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采集内蒙古某矿区1#和2#井田主采煤层的煤样,分析煤样中的有机和无机组分,及煤中全硫和硫酸盐硫、硫化铁硫、有机硫三态的硫质量分数,并对煤样进行烧灼试验,测定了灰分中砷的质量比。运用SPSS软件,将煤中砷质量比与煤中有机和无机显微组分、全硫及三态硫质量分数分别进行一元回归分析。结果表明,煤中砷与有机显微组分中的半镜质组的相关系数为0.997,与无机显微组分黏土类、硫化物、碳酸盐的相关系数分别为0.998、1、0.981,呈正相关(p<0.05);煤中砷与全硫、硫化铁中硫和有机硫化物相关系数分别为0.986、0.979、0.991,呈显著正相关(p<0.001)。随着产灰率的增高,灰分中砷质量比也相应有增高趋势,二者存在显著线性关系。
Coal samples collected from main coal seams of No. 1 and No. 2 miners in a mining area in Inner Mongolia were collected to analyze the organic and inorganic components in coal samples and the total sulfur and sulfate sulfur, sulfur iron sulfide and organic sulfur tri-state sulfur in coal Scores, and the burning of coal samples were tested to determine the mass ratio of arsenic in ash. Using SPSS software, the coal arsenic mass ratio and coal organic and inorganic microstructure, total sulfur and three-state sulfur mass fraction were carried out a one-way regression analysis. The results showed that the correlation coefficient between arsenic in the coal and the semi-vitrinite in the organic micro-component was 0.997, and the correlation coefficient with the clay, sulfide and carbonate in the inorganic micro-component was 0.998,1,0.981, (P <0.05). The correlation coefficients of sulfur and organic sulfur in arsenic, total sulfur and iron sulfide were 0.986,0.979 and 0.991 respectively (p <0.001). With the increase of the rate of ash production, the arsenic mass ratio in ash also has a corresponding increase trend, the two have a significant linear relationship.