低阶煤储存煤质变化影响因子分析
汪后港¹，谭彦平²，陆超³，翟鹏宇¹，周臣³，洪新华¹
（1. 中电华创（苏州）电力技术研究有限公司，江苏 苏州 215123；2. 中电国瑞物流有限公司，北京 100080；3. 中电华创电力技
术研究有限公司，上海 200086）
摘要： 选择一批干燥无灰基挥发分大于37%的标称最大粒度均为3 mm 的低阶煤进行储存煤质变化试验，试验煤样密
封储存10~60 d，对储存前和储存后的煤样进行发热量、灰分、挥发分及全硫等煤质参数的准确测定。将储存前煤样的
煤质参数、储存时间及储存前后煤质参数的变化值作为变量，通过SPSS 软件进行因子分析，提取出2 个公因子F1和F2。
因子分析的结果显示：影响所选低阶煤储存过程煤质变化的主要因素是灰分产率、储存时间及全硫含量；其中F1中干基
灰分的权重系数达到了-0.988，表明干基灰分与储存变质程度成反比关系；F2中储存时间和干基全硫的权重系数分别为
0.742 和0.735，表明储存时间和干基全硫与储存变质程度成正比关系。
关键词： 低阶煤；储存；煤质变化；SPSS；因子分析
中图分类号： TQ533     文献标识码： A     文章编号： 2095-0802-(2021)10-0050-03
Impact Factor Analysis of Coal Quality Variation in Storage of Low-rank Coal
WANG Hougang¹, TAN Yanping², LU Chao³, ZHAI Pengyu¹, ZHOU Chen³, HONG Xinhua¹
(1. China Power Huachuang (Suzhou) Electricity Technology Research Co., Ltd., Suzhou 215123, Jiangsu, China; 2. China
Power Guorui Logistics Co., Ltd., Beijing 100080, China; 3. China Power Huachuang Electricity Technology Research Co., Ltd.,
Shanghai 200086, China)
Abstract: The low-rank coal with dry ash-free base volatile content greater than 37% and nominal maximum particle size of 3 mm
were chosen to carry out storage coal quality change test. The test coal samples were sealed and stored for 10-60 days. The
calorific value, ash content, volatile content, total sulfur and other coal quality parameters of the coal samples before and after
storage were accurately measured. Taking the coal quality parameters of coal samples before storage, storage time and the change
value of coal quality parameters before and after storage as variables, factor analysis was carried out through SPSS software to
extract two common factors F1 and F2. The results of factor analysis show that the main factors affecting the change of coal quality
are ash yield, storage time and total sulfur content; the weight coefficient of dry basis ash in F1 is -0.988, indicating that the dry
basis ash is inversely proportional to the degree of storage deterioration; the weight coefficients of storage time and dry basis total
sulfur in F2 are 0.742 and 0.735 respectively, indicating that the storage time and dry basis total sulfur are directly proportional to
the degree of storage deterioration.

Key words: low-rank coal; storage; coal quality variation; SPSS; factor analysis