CAJ | 학술논문

长期以来,一些学者结合煤粉颗粒粒度分布、煤粉工业分析,在煤粉颗粒粒度与煤的着火、燃烧及燃尽特性等方面作了不少研究.但对煤粉在不同粒度下煤中元素组成变化的影响研究还不够.煤在送入磨煤机粉碎过程中,由于煤的粒度减小,煤粉被磨细,煤中的矿物质会解离出来,因此煤粉在不同粒度下的元素含量、煤粉中组分及其物理特性会有很大变化.文中采用德国元素分析系统公司的VARIO EL Ⅲ元素分析仪测量不同煤粉在不同粒度下的元素组成,对邢台和阳泉电厂用煤各4种不同粒径下的煤粉进行了实验研究.结果表明煤粉颗粒粒度对煤粉中不同组分特性有很大的影响,并从而影响煤粉中元素的百分含量.文中还进一步推断了这两种煤的硫元素存在形态和矿物质特性.
장기이래,일사학자결합매분과립립도분포、매분공업분석,재매분과립립도여매적착화、연소급연진특성등방면작료불소연구.단대매분재불동립도하매중원소조성변화적영향연구환불구.매재송입마매궤분쇄과정중,유우매적립도감소,매분피마세,매중적광물질회해리출래,인차매분재불동립도하적원소함량、매분중조분급기물리특성회유흔대변화.문중채용덕국원소분석계통공사적VARIO EL Ⅲ원소분석의측량불동매분재불동립도하적원소조성,대형태화양천전엄용매각4충불동립경하적매분진행료실험연구.결과표명매분과립립도대매분중불동조분특성유흔대적영향,병종이영향매분중원소적백분함량.문중환진일보추단료저량충매적류원소존재형태화광물질특성.
Since a long time, many scholars studied on granularity and ignition, combustion and burnout characteristics combined with particle granularity distribution and proximate analysis of pulverized coal. But it isn't enough that study on the change of element component in the difference of granularity.In the milling process, the mineral of coal will be separated out because of decrease of granularity and milling of coal. So, the element component and physical character of pulverized coal will be changed in the difference granularity. Elementary analyzer made in Germany was applied to analyze respectively samples of pulverized coals over four kinds of different particle sizes from Xingtai power plant and Yangquan power plant. The results show that there is great influence of particle granularity of pulverized coal on fractional characteristic, thereby element percent content was influenced. The sulfur formation and mineral characters was concluded.