CAJ | 학술논문

在考虑孔隙率的基础上采用缩核模型，研究了单颗粒煤焦在烧结床上的燃烧过程，通过数值模拟着重研究了不同氧含量和环境温度下烧结过程中煤焦颗粒的燃烧状况。研究发现：烧结过程中煤焦着火点为973 K时，燃烧所能达到的最高温度为1650 K；随着灰层增加，颗粒反应速率下降；提高助燃剂中氧含量及环境温度有助于颗粒的燃烧；颗粒尺寸对于烧结过程有着重要的影响。
재고필공극솔적기출상채용축핵모형，연구료단과립매초재소결상상적연소과정，통과수치모의착중연구료불동양함량화배경온도하소결과정중매초과립적연소상황。연구발현：소결과정중매초착화점위973 K시，연소소능체도적최고온도위1650 K；수착회층증가，과립반응속솔하강；제고조연제중양함량급배경온도유조우과립적연소；과립척촌대우소결과정유착중요적영향。
On the basic of shrinking core model considering porosity , focus on the progress of coal -ore combustion in the sintering -bed, using simulation method to study the influence of different oxy-gen contents and environment temperatures on the sintering progress .The study results show that while the burning temperature is 937K, the highest temperature during the combustion can be 1650K.The reaction rate of the particle decreases while the thickness of the ash increases .Higher oxygen content and environment temperature will improve the coal -ore combustion , and particle size has a great im-pact on the sintering progress .