武汉科技大学学报（自然科学版）
武漢科技大學學報（自然科學版）
무한과기대학학보（자연과학판）
JOURNAL OF WUHAN UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
3期
184-187
,共4页
鲍俊芳%詹立志%尹秀利%项茹
鮑俊芳%詹立誌%尹秀利%項茹
포준방%첨립지%윤수리%항여
黏结指数G值%炼焦煤%结焦性%高温塑性%成焦光学组织%局限性
黏結指數G值%煉焦煤%結焦性%高溫塑性%成焦光學組織%跼限性
점결지수G치%련초매%결초성%고온소성%성초광학조직%국한성
value of bonding index G%coking coal%coking property%high temperature plasticity%co-king optical organization%limitation
对7组相同变质程度和黏结指数 G值炼焦煤煤岩显微组分、高温塑性和成焦光学组织结构进行研究。结果表明，相同变质程度和 G值的炼焦煤高温塑性差异明显，软化温度相差3～29℃，固-软温度区间相差8～42℃，最大基氏流动度比值为1．3～1266；其炼焦煤焦炭光学组织结构差异亦明显，粗粒镶嵌结构占比相差9％～43％，同性结构占比相差2％～16％，纤维结构占比相差15％～36％。因此， G值对煤料受热所产生胶质体的数量能较好地表征，但对其结焦性的判断存在缺陷。
對7組相同變質程度和黏結指數 G值煉焦煤煤巖顯微組分、高溫塑性和成焦光學組織結構進行研究。結果錶明，相同變質程度和 G值的煉焦煤高溫塑性差異明顯，軟化溫度相差3～29℃，固-軟溫度區間相差8～42℃，最大基氏流動度比值為1．3～1266；其煉焦煤焦炭光學組織結構差異亦明顯，粗粒鑲嵌結構佔比相差9％～43％，同性結構佔比相差2％～16％，纖維結構佔比相差15％～36％。因此， G值對煤料受熱所產生膠質體的數量能較好地錶徵，但對其結焦性的判斷存在缺陷。
대7조상동변질정도화점결지수 G치련초매매암현미조분、고온소성화성초광학조직결구진행연구。결과표명，상동변질정도화 G치적련초매고온소성차이명현，연화온도상차3～29℃，고-연온도구간상차8～42℃，최대기씨류동도비치위1．3～1266；기련초매초탄광학조직결구차이역명현，조립양감결구점비상차9％～43％，동성결구점비상차2％～16％，섬유결구점비상차15％～36％。인차， G치대매료수열소산생효질체적수량능교호지표정，단대기결초성적판단존재결함。
The maceral ,high-temperature plasticity and coking optical structure of 7 groups of coking coals with the same metamorphic degree and bonding index G value were studied .The results indicate that coking coals of the same metamorphic degree and G value differ greatly in high-temperature plas-ticity .Their difference in softening temperature can be as large as between 3~29 ℃ ;in solid-soft temperature range ,8~42 ℃ ;and in maximum Gieseler fluidity ratio ,1 .3~1266 .Their coking opti-cal structures also differ hugely ,with the difference in mosaic structure proportion at 9% ~43% ;in same-sex structure proportion ,2% ~16% ;and in fiber structure proportion ,15% ~36% .It is thus concluded that ,G value can well characterize the quantity of metaplast arising from coal heating ,yet it has limitations w hen used to judge coking properties of coal .
