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The Product of Base/Acid and Silica/Alumina of Ash in Steal Coal——An Index to Ash Slagging Tendency

HUANG Qian-jun(Yunnan Research Institute of Chemical Industry,Kunming 650041, China)  
R_H, the product of base/acid(B/A) and silica/alumina(SiO_2/Al_2O_3) of ash in steal coal,is proposed for an index to ash slagging tendency in this paper.The bigger R_H of ash is,the more the ash tends to form easy-melt glassy aluminosilicate in burning,and the more heavily the ash slags.R_H≤0.30 means slight slagging,0.30R_H0.80 middle slagging,and R_H≥0.80 heavy slagging.The preliminary examination shows the index R_H to have higher accuracy at indicating ash slagging tendency. Tables 2 and refs 9.
【CateGory Index】: TK227.3
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