CAJ | 학술논문

为实现内蒙古乌拉盖褐煤的高效利用，以粒度小于6 mm 乌拉盖褐煤为原料，用马弗炉模拟工业炭化炉热解条件，制取了乌拉盖褐煤中低温热解半焦，测定了热解半焦的工业分析、发热量、哈氏可磨性指数，分析了半焦的燃烧动力学，研究了热解条件与半焦燃烧特性之间的关系。结果表明：热解终温对乌拉盖褐煤热解半焦燃烧特性影响最大，升温速率和保温时间对半焦燃烧特性影响不显著。乌拉盖褐煤热解半焦反应活化能随热解终温、保温时间的升高而增加，燃烧特性指数随热解终温、保温时间的升高而降低。热解终温为600℃时产生的半焦具有最高发热量24.50 MJ/ kg，比原煤提高77％；燃烧特性指数最高为1.4×10-7％2/(min2??℃3)，适宜燃料比为7~9，是很好的燃料。
위실현내몽고오랍개갈매적고효이용，이립도소우6 mm 오랍개갈매위원료，용마불로모의공업탄화로열해조건，제취료오랍개갈매중저온열해반초，측정료열해반초적공업분석、발열량、합씨가마성지수，분석료반초적연소동역학，연구료열해조건여반초연소특성지간적관계。결과표명：열해종온대오랍개갈매열해반초연소특성영향최대，승온속솔화보온시간대반초연소특성영향불현저。오랍개갈매열해반초반응활화능수열해종온、보온시간적승고이증가，연소특성지수수열해종온、보온시간적승고이강저。열해종온위600℃시산생적반초구유최고발열량24.50 MJ/ kg，비원매제고77％；연소특성지수최고위1.4×10-7％2/(min2??℃3)，괄의연료비위7~9，시흔호적연료。
In order to use Wulagai lignite (Inner Mongolia) efficiently,taking -6 mm Wulagai lignite as raw material,the test prepared the Wulagai lignite semi-coke in muffle which was used to simulate the industrial carbonization furnace.Then the proximate analysis,calorific value,grindability index,combustion dynamics of semi-coke,relationship between pyrolysis condition and semi-coke combustion charac-teristics were researched.The results showed that,the final temperature of pyrolysis was the main influencing factor,the influence of heating rate and holding time ware not significant.The reaction activity of semi-coke improved with the rise of final temperature and heat preserva-tion time,while the influence on combustion characteristics index was opposite. The semi-coke which was obtained at 600 ℃ pyrolysis had superior calorific value of 24.50 MJ/ kg which was 77% higher than that of raw coal. The combustion characteristics index were 1.4× 10-7%2 / (min2??℃ 3 ),the suitable fuel ratio R ranged from 7 to 9,which was a fine fuel.