Anthracite coal is the most ancient high-quality pit coal. Coal reserves are only 3% of scope volume of the world coal reserves. High degree of incarbonization is a predominant feature of anthracite coal. It contains 95% of carbon that is why anthracite burns without open flame and odor and smoke emission. Anthracite coal can be both of velvet and iron-black color with strong steel luster.
Anthracite coal is widely applied both in various industrial spheres and household spheres as a fuel for accommodation heating.
Anthracite coal burning
To kindle anthracite you need more efforts and heat than for wood-polymer composites but after flaming up anthracite will burn longer. But anthracite coal burns only in the presence of an air-draught and do not sinter.
Though anthracite is a product of what is formed after the slow tabes, anthracite is harder than brown and mineral coal formed in the same way.
Specific heat of anthracite amounts 8100-3850 kcal/kg.
Depending on fraction size, anthracite coal is classified according to the following types:
- Anthracite horn nut — fraction 26-100 mm;
- Anthracite horn, large – fraction 50-100 mm;
- Anthracite nut – fraction 26-50 mm;
- Anthracite small – fraction 13-25 mm;
- Anthracite seed – fraction 6-13 mm;
- Anthracite slime (product of coal washing) – A-slime;
- Anthracite dust coal – fraction less than 6 mm.
Anthracite is packed in polypropylene bags marked with the brand logo of our company. In order to protect the product from moisture during transportation and storage we insert an additional plastic bag in each bag.