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rn通过粉煤压球后参与配煤炼焦的试验研究,发现炼焦煤经干燥筛分之后得到的粉煤经过高压压球机成球后参与配煤炼焦,可以提高焦炭质量,其原因是恢复了粉煤本身的粘结性,并增加了与周围煤料的接触和融合;另外,焦炭微观结构中的粗粒镶嵌结构明显增加。“,”rnCoal blending and coking experiment is carried out as follows: fine coal is compacted after being sieved from blended dry coal and then mixed with other coal in coking.The results show that the coke quality can be improved by taking this process.The reasons are that compacted fine coal's caking ability was recovered and aeolotropic degree in the microstructure increased.