【摘要】 通过对山东各口岸进口118批次朝鲜无烟煤品质指标的统计分析,并对其一些关键指标进行了回归分析,总结出进口朝鲜无烟煤的主要品质特点:全水、灰分指标波动大,因此固定碳和收到基低位发热量指标波动也较大;挥发分、氢含量较低且稳定;硫含量较低;灰分和高位发热,全水、灰分和低位发热量都有显著的相关性,经销部门和实验室可用其回归方程进行质量控制和检验工作的质量审核。更多还原

【Abstract】 Based on the statistical analysis of quality index on No. 118 North Korean anthracite imported from ports of Shandong, make a regression analysis on some key index. Summarize main quality characteristics on the imported anthracite that are major fluctuation of total moisture(TM) and ash content. Fixed carbon and NAR (Net as received) fluctuate accordingly; volatile matter(VM) and hydrogen content are low and stable; Sulfur is of low content; GCV (Gross Calorific Value) is remarkably related with Ash content, so is the NAR and TM, Ash Content. Referred to the above summarization, Sales department and laboratory are able to make full use of regression equation to verify quality controlling and inspection.更多还原