CAJ | 학술논문

在分析微量元素燃烧过程中迁移变化机理的基础上，对电厂用煤和煤灰进行了采样测试，分析了电厂燃煤过程中微量元素的析出变化及在各种灰中的分布富集规律；同时用五个不同的温度段分别对煤进行了燃烧实验，研究了在不同温度下，微量元素从煤中析出的浓度和析出率。通过实验分析，多数有害微量元素在飞灰中的富集浓度高于其它灰中。燃烧时温度的高低是影响微量元素迁移析出的重要因素，温度越高，有害微量元素析出率相对越大。
재분석미량원소연소과정중천이변화궤리적기출상，대전엄용매화매회진행료채양측시，분석료전엄연매과정중미량원소적석출변화급재각충회중적분포부집규률；동시용오개불동적온도단분별대매진행료연소실험，연구료재불동온도하，미량원소종매중석출적농도화석출솔。통과실험분석，다수유해미량원소재비회중적부집농도고우기타회중。연소시온도적고저시영향미량원소천이석출적중요인소，온도월고，유해미량원소석출솔상대월대。
In this paper, the enrichment and concentration of trace elements Pb, Zn, Th, Cu , As, V, Cl and F in coal ashes during coal combustion with various temperatures from power plant ware analyzed . The minerals and chemi cal composition of coal ashes used were studied. It is found that the content of some hazardous trace elements in fly ash is higher than that in other ashes and the temperature is an important factor for transfer of trace elements. More hazardous trace elements are evolved with increasing temperature.