印尼煤的煤质特征及与国内炼焦煤配伍性研究

对某焦化公司进口的印尼焦煤、肥煤、1/3焦煤以及国内同牌号的田庄焦煤、两渡肥煤和枣庄1/3焦煤进行煤质及单种煤结焦性对比分析，并以生产常用配比为基础进行20 kg实验焦炉配煤炼焦实验，探讨印尼煤与国内炼焦煤的配伍性能。结果表明，印尼煤均是低灰、低硫、强黏结性、高膨胀性、低流动性的单一煤，其活性高，活惰比均不低于24，而国内炼焦煤有一定的混配，其活惰比为1～2，活性组分和惰性组分含量较为均衡；印尼单种煤所制焦炭的强度和热性能较差；印尼煤替代国内同牌号煤进行配煤炼焦，所制焦炭质量明显下降，并且替代量越大，焦炭质量下降越多。

Properties of Indonesian coal and its compatibility with domestic coal for coking

Indonesian coking coal ,fat coal and 1/3 coking coal imported by a certain coking company were compared with the same sort of domestic Tianzhuang coking coal , Liangdu fat coal and Zaozhuang 1/3 coking coal in coal property and coking property .The common coal blending ratio was followed in coal blending for coking experiment in a 20 kg coke oven ,in order to find out the compati-bility of Indonesian coal with domestic coking coal .The results show that the Indonesian coals are sin-gle with low ash ,low sulfur ,strong bonding ,high expansibility ,and low liquidity ,and they also have high activity with the live-idle index reaching as high as more than 24 while domestic coking coals are mixed and more balanced with the live-idle index at 1 to 2 .The coke produced from Indonesian coal has low strength and poor thermal property .If the domestic coal is replaced by Indonesia coal , the quality of coke produced will decrease in quality sharply ,and the more replaced ,the greater de-crease in the coke quality .