Anthracite coal is the largest degree of coal, the general carbon content of more than 90%, volatile matter below 10%, has high density, hardness and ignition, burning with no smoke. Anthracite appearance is black solid hard, metallic luster. To grease friction will not stain, fracture into a shell-shaped, burning flame short and less smoke, no coke, no glial layer thickness. Anthracite calorific value of about 7000-8000 kcalkg, sometimes the large volatile content called semi-anthracite;small called high anthracite.
Characteristics and use of anthracite
Characteristics of anthracite:Anthracite has the characteristics of high thermal stability, high heat capacity, high mechanical strength, low ash and low sulfur, less volatilization, high fixed carbon content, high chemical activity, high gray point, high yield. Its the best coal for industrial and civil use, environmental protection, smoke-free, mainly used for chain boilers, hand boilers, etc.It is a gas coal, fat coal, the main gas for chemical plants, paper mills, chemical plants, breweries, fertilizer plants, brick and slaughter plants and so on.