摘要
为降低不连沟煤的灰熔融性,进行了配煤试验和加入不同助熔剂的试验,得到了较为合理的操作方法:利用A煤可在配入量为60%时有效降低不连沟煤的灰熔融性,利用CaO作为助熔剂可在干基煤添加量为2%时将原煤的流动温度降低至1390℃。由配煤添加助熔剂以降低灰熔融性的试验可知,不同的助熔剂对于2种配煤各有不同的作用结果。通过对煤中灰分的理想化假设,计算出理想灰分的硅铝比和硅钙比分别为1.18、1.07,以此推算并解释不同助熔剂在降低煤灰融性方面的作用机理,指出推算结果与试验结果基本相符。
For reducing the ash fusion temperature of Buliangou coal,coal blending test and addition of different fluxing agents tests were completed.A reasonable operation method was obtained：the use of A coal at dosage of 60% could effectively reduce the ash fusion temperature of Buliangou coal;the use of CaO as fluxing agent at the dosage of 2% could make the FT of Buliangou coal reduce to 1390℃.From the experiment of coal blending and adding fluxing agent to reduce ash fusibility we can see that：different fluxing agents for two kinds of coal blending had the different effects.Through the ideal assumption of ash in coal,silicon and aluminum ratio and silicon and calcium ratio of ideal ash was 1.18、1.07 respectively,mechanisms of different fluxing agents used for reducing the ash fusibility could be calculated and explained,the derivation result and experimental results were consistent.
出处
《煤质技术》
2015年第3期19-22,42,共5页
Coal Quality Technology
关键词
灰熔融性
液态排渣
配煤
助熔剂
灰组分
ash fusion point
slag tapping
coal blending
fluxing agent
ash content
