CAJ | 학술논문

为了探讨TG实验过程不同实验条件对煤氧化燃烧特性的影响，采用控制变量法对不同煤样粒度、不同升温速率、不同试样量条件下煤氧化燃烧过程进行了研究。通过TG/DTG曲线上的特征温度点将煤的氧化燃烧过程划分为五个阶段。结果表明：煤样粒度增加、升温速率增大都会使TG曲线向高温侧移动，对应的各特征温度值也都会升高；随煤样量增加，TG曲线在受热分解段及燃烧阶段向低温侧移动，煤样着火点温度T4降低。
위료탐토TG실험과정불동실험조건대매양화연소특성적영향，채용공제변량법대불동매양립도、불동승온속솔、불동시양량조건하매양화연소과정진행료연구。통과TG/DTG곡선상적특정온도점장매적양화연소과정화분위오개계단。결과표명：매양립도증가、승온속솔증대도회사TG곡선향고온측이동，대응적각특정온도치야도회승고；수매양량증가，TG곡선재수열분해단급연소계단향저온측이동，매양착화점온도T4강저。
In order to investigate the effect of different experimental conditions on the oxidative combustion charac -teristics of coal in the process of TG experiment , control variable technology was used to research the oxidative com-bustion process under different size , different heating rate and different sample quantity .The process was divided into five stages according to the characteristic temperature on the TG/DTG curves.The results showed that: with the increase of coal particle size and heating rate , TG curves move to the high-temperature side , each of the corre-sponding characteristic temperature value also increases;with the increase of coal sample quantity , TG curves move to the low-temperature side in thermal decomposition stage and combustion stage , and the coal ignition temperature T4 decreases.