Study on influence factor of preparing high mass fraction coal-water slurry from Huanxian coal

Based on analyzing characteristic of Huanxian coal,investigated the effect of additive dosage, amount of water and coal powder ration on coal-water slurry（CWS）. The results showed that the effect of water amount is less on the mass fraction of CWS. When the water quantity is 32 g,the additive dosage is 0. 50%~0. 60%,and the ratio of coarser/fine coal between 1. 60 to 1. 70,the slurry mass fraction can reach 68. 40%,and slurry has a good stability.