显微矿化类型含量对高灰煤配煤炼焦的影响  

Effect of carbominerite content on high-ash coal blending for coking

作　　者：白永建 Bai Yongjian(Shanxi Gengyang Investment Co.,Ltd.,Taiyuan Shanxi 030025,China)

机构地区：[1]山西梗阳投资集团有限公司,山西太原030025

出　　处：《煤化工》2024年第S1期26-30,65,共6页Coal Chemical Industry

摘　　要：选用不同矿物分布、不同变质程度的高灰煤,通过对其炼制焦炭的质量与光学显微结构的对比分析,研究其矿物质分布对成焦性的影响。结果表明,灰分含量接近的焦煤和肥煤,显微矿化类型含量较多时对焦炭的热性质有较好的改善作用,有更好的成焦性能;而显微矿质类型含量较多则会负面影响煤的成焦性;但对低变质气煤和高变质瘦煤来说,显微矿化类型含量对成焦性影响较小。基于上述试验结果,分析了富含显微矿化类型的中等变质程度焦煤或肥煤的成焦机理,认为富含显微矿化类型的焦煤或肥煤中矿物质并不完全属于惰性组分,在成焦过程中产生“增活降惰”的效应,其容惰能力加大,这种赋存条件有利于成焦。By selecting high-ash coal with different mineral distributions and metamorphic grades as the object,the influence of its mineral distribution on the coking performance was studied through the comparative analysis of the quality and optical microstructure of the coke made from it.The results showed that coking coal and fat coal with high carbominerite content could improve the thermal properties of coke and had better coking performance,while high minerite content had a negative impact on the coking performance of coal.However,the carbominerite content had little impact on the coking performance of low-rank gas coal and high-rank lean coal.Based on the above experiment results,the coking mechanism of medium-rank coking coal and fat coal rich in carbominerite was analyzed.It was believed that the minerals in fat coal and coking coal rich in carbominerite were not totally inert components.It showed the effect of“increasing the activity and decreasing the inertia”by improving its tolerance of inert components,which was conducive to coking.

关 键 词：高灰煤 中等变质程度 光学显微结构 成焦性 配煤炼焦 显微矿化类型 焦炭质量 

分 类 号：TQ520.62[化学工程—煤化学工程]