Selects the Shanxi high quality original coal, after selects the processing but to become. Outward appearance gloss, granularity even, the intensity is high, resistant to compression wear resistant, is suitable in double-decked and three filters.

The anthracite filters the material

The anthracite filters attends to, the performance analysis
Analysis project	Analysis data	Analysis project	Analysis data
Carbon amount %	>= 80	The hydrochloric acid may dissolving rate %	<= 3.5
Proportion g/cm 3	1.4-1.6	Rate of wear %	<= 1.4
Bulk specific gravity g/cm 3	0.95	破碎 rate %	<= 1.6
Silt carrying capacity %	<= 4	Percentage of voids %	47-53