CAJ | 학술논문

伊宁凹陷煤系地层主要分布于侏罗系中下统水西沟群（J1-2sh）八道湾组（21-23煤、27-29煤）、西山窑组（6-7煤、10煤），煤层厚度大，分布稳定，结构简单。研究结果表明：伊宁凹陷4套主要煤层显微组分以惰性组为主，镜质组次之，壳质组极少，自下而上惰性组含量逐渐增高，镜质组含量逐渐减少；煤质属低-中灰、低硫、中高-高挥发分、高-特高发热量不粘煤；煤的挥发分与灰分呈弱负相关关系，与全硫含量、发热量分别弱正相关。究其原因，传统的煤变质指标挥发分对于低变质长烟煤、不粘煤适用性较差。
이저요함매계지층주요분포우주라계중하통수서구군（J1-2sh）팔도만조（21-23매、27-29매）、서산요조（6-7매、10매），매층후도대，분포은정，결구간단。연구결과표명：이저요함4투주요매층현미조분이타성조위주，경질조차지，각질조겁소，자하이상타성조함량축점증고，경질조함량축점감소；매질속저-중회、저류、중고-고휘발분、고-특고발열량불점매；매적휘발분여회분정약부상관관계，여전류함량、발열량분별약정상관。구기원인，전통적매변질지표휘발분대우저변질장연매、불점매괄용성교차。
The coal-bearing strata of Yining hollow distribute in Badaowan Formation and Xishanyao Formation of Shuixigou Group. The main coal-seams of Badaowan Formation are 21-23 and 27-29 while Xishanyao Formation is 6-7and 10. The coal seams are thick, steady and simple. According to the research, we got the following concludes:the coal macerals content of four main coal seams of Yining Hollow are Inertinite, Vitrinite, and Exinite, from high to low. The coal quality belongs to non-caking coal of low-middle ash, low sulfur, high volatiles and high calorific value. The coal content of volatiles has a low-negative correlation with ash, while sulfur and calorific is low-positive correlation. The reason for low-correlation is that the traditional coal metamorphic indicators of volatiles has a poor suitability for coal of non-caking coal and long flame coal in lower metamorphic.