按煤质分灰分含量大的煤种，其含有高水平杂质、致污物及其它污染成分，可燃烧的热值较少。
结果表明，低变质程度和高灰煤浆多呈屈服假塑性，煤的性质起主导作用；
The results show that the CWS rheology of low rank or high ash coal is mainly due to the physical and chemical properties as well as surface structure characteristics of coal.
结果表明，HF酸对高硅低钙含量的煤和石墨有显著的脱灰效果；
The results showed that HF acid has remarkable deashing capacity for coal and graphite with high Si and low Ca content.
通过气化机理分析认为，双高煤采用非熔渣气化、固态排灰的操作方式是可行的。
After analyzing gasification mechanism, it is believed that the operation of dry ash process can be used.
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