The results indicate that high concentration CWS can be made from Laoyingshan raw coal in Guizhou Province by using modified sodium lignosulfonate as additives.

• 采用正交设计法选取制取水煤浆所适用的添加剂配方及最佳粒度分布,结果表明用改性木质素磺酸钠和贵州老鹰山煤能制取高浓度水煤浆。