ultra-clean coal

The oxy-coal technique of blast furnace means the blast furnace operates with ultra-high PCI and more than 40% oxygen enriched blast.

高炉氧煤炼铁是指高炉鼓风富氧超过40%以上的超量喷煤技术。

Study and Application on Gas Drainage Technology in Ultra Thin Seam of Small Coal Mine in Sichuan

四川小煤矿极薄煤层瓦斯抽采技术研究与应用

Ultra-clean coal can be obtained for coal containing less clay minerals and in the contrary, clean coal with less than 2% ash can hardly be obtained for coal containing more clay minerals finely dissimulated in coal matrix;

煤中的无机矿物主要是黏土，黏土含量小的煤可以分选出超净煤，反之，黏土和黏土与有机物连生体含量高的煤，很难分选出灰分低于2%的超净煤；

Study of Thermal Performance Calculation Method in Ultra-supercritical Coal Firing Boiler Furnace

超（超）临界燃煤锅炉炉膛热力计算方法的研究

Experimental Study and Analysis on Explosive Characteristics of Ultra-fine Coal Dust

超细煤粉爆炸特性的实验研究与分析

Method for Ultra Microstructure Study of Coal Field

煤田超显微构造研究方法