CAJ | 학술논문

为了提高水煤浆成浆浓度，选取一种无烟煤作为研究对象，分别利用常规研磨工艺和分级研磨工艺进行制浆实验考察其成浆性能。结果表明：利用分级研磨工艺优化粒度后，水煤浆浓度能达到67?3％，成浆性良好。选取2种工艺制得的样品进行了燃烧特性实验，发现采用分级研磨工艺制得的样品的燃点和燃烬温度有一定程度的降低，燃烬指数增大，加入助燃剂后该特性更加明显，这是由于分级研磨工艺所制水煤浆中细颗粒含量增加，反应活性变好。重点考察了不同催化剂加入量对煤样气化反应活性的影响。随着催化剂加入量的增加，气化反应活性有不同程度提高，实验样品的催化剂的最佳加入量为0?2％。
위료제고수매장성장농도，선취일충무연매작위연구대상，분별이용상규연마공예화분급연마공예진행제장실험고찰기성장성능。결과표명：이용분급연마공예우화립도후，수매장농도능체도67?3％，성장성량호。선취2충공예제득적양품진행료연소특성실험，발현채용분급연마공예제득적양품적연점화연신온도유일정정도적강저，연신지수증대，가입조연제후해특성경가명현，저시유우분급연마공예소제수매장중세과립함량증가，반응활성변호。중점고찰료불동최화제가입량대매양기화반응활성적영향。수착최화제가입량적증가，기화반응활성유불동정도제고，실험양품적최화제적최가가입량위0?2％。
To inprove the mass concentration of coal water mitture( CWM),a type of anthracite was selected as raw material to investigate its slurryability.Traditional and classified grinding CWM preparation processes were used in the tests.The results show that,the concentra-tion of CWM reaches to 67.3% when the anthracite particle size distribution is optimized by classified grinding process.Investigate the com-bustion characteristics of the CWM samples prepared by traditional and classified grinding processes.It is found that the ignition point and burnout temperature reduce in some extent and the burnout index increase.The combustion improver makes this characteristics more obvi-ous.This is because classified grinding process increases the small size coal particles which has better reactivity.Meanwhile,the effects of catalyst content on gasification reactivity are investigated. The results prove that,the catalyst improves the gasification reactivity. The opti-mum added content of catalyst is 0.2% for the samples.