煤炭转化2017，Vol.40Issue(2)：6-10,15,6.
镜质组随机反射率对焦炭热态强度的影响
Effect of Vitrinite Random Reflectance on Thermal Strength of Coke
郑超 1罗东 1颜科求 2王勋 1周勇 1田永胜 1王光辉1
作者信息
- 1. 武汉科技大学化学工程与技术学院,湖北省煤转化与新型炭材料重点实验室,430081武汉
- 2. 湖南煤化所新能源有限公司,417000湖南娄底
- 折叠
摘要
Abstract
The respective percentage of five subintervals of vitrinite random reflectance was defined as R1,R2,R3,R4 and R5 indicators.35 groups of 5 kg test coke oven stamping coking experiments were carried out,with the five indicators as experimental variables and on the condition of meeting the blended coal quality requirements in tamping coking process.The results show that there is strong linear correlation between the five indicators and content of the dry ashfree volatile matter w(Vdaf),the mean maximum reflectance of vitrinite (Rmax),the caking index (G) and the maximum thickness of plastic layer (Y).The correlation coefficient is 0.933,0.976,0.858 and 0.564,respectively.And there is high prediction accuracy by using R1,R2,R3,R4 and R5 to predict the coke reactivity index.Moreover,the coke reactivity index improves obviously for the increasing of the content of R1,and reduces for the increasing of the content of R3 and R4.Meanwhile,the degree of impact of R1,R2,R3,R4,R5 on the coke reactivity index is R1＞R3=R4＞R5＞R2.Therefore,the thermal strength of coke can be effectively improved by adjusting the respective content of R1,R2,R3,R4 and R5 to 25％-35％,20％-30％,10％-20％,15％-25％ and 5％-15％.关键词
镜质组/随机反射率/焦炭/热态强度/预测模型/配煤Key words
vitrinite/random reflectance/coke/thermal strength/prediction model/blending coal分类
化学化工引用本文复制引用
郑超,罗东,颜科求,王勋,周勇,田永胜,王光辉..镜质组随机反射率对焦炭热态强度的影响[J].煤炭转化,2017,40(2):6-10,15,6.
