渣煤 meaning in Chinese

cinder coal
dross coal

Experimental study of a retrofit slagging coal combust or
改进型液排渣煤粉燃烧器实验研究
The measurement of the running result indicates that its efficiency achieves 90 to 93 percent when using in a liquid state pulverized coal fired boiler and 92 to 95 percent when using in a solid state ptdverized coal fired holiler
运行测试表明：用于液态排渣煤粉锅炉，其除尘效率达到90 93 ；用于固态排渣煤粉锅炉，其除生效率达到93 95 。
These results show that since the existent defects of combustion device structure and its hypothetical circle of contact , these make a poor primary and secondary wind rigidity in operation and a too big actual circle of contact . in addition , the coal used is extreme prone to burn and reside in boiler . under such a condition , the coal powder ignites earlier in a short time and short distance when it leave the jet - combustioning device , and splashes the water cooler , eventually this results in a burned coal residue in boiler
针对宏伟热电厂410t / h燃煤锅炉严重结渣问题,对燃煤的结渣性、炉内温度工况及空气动力工况等进行实验研究,由于燃烧器结构和假想切圆选择的缺陷,使得锅炉在正常运行时,一、二次风刚性较差,实际切圆过大,加上目前燃用煤质属于极易燃、易结渣煤质,致使煤粉在离开喷燃器很短的时间、较短的距离内开始着火,并冲刷水冷壁,最终造成炉膛结渣。