碱金属氧化物对焦炭热态性能的影响

Influence of metal oxides on coke thermal properties

采用在煤中添加矿物质的炼焦方式,考察了碱金属钾、碱土金属钙镁、过渡金属铁对焦炭高温反应性和反应后强度的影响。得出所添加的矿物质使焦炭的反应性升高,反应后强度降低,焦炭反应性与反应后强度呈一定的负相关关系的结论。

Examined the coke reactivity index （＇CRI） and coke strength after reaction （CSR） under the influence of basic metals potassium, alkaline - earth metals calcium and magnesium, the transition metal iron （by adding mineral oxides to coal ）. The results show that CRI becomes higher and CSR gets worse. The coke reactivity index and coke strength after reaction is a negative correlation.