DO Coal Grade (25 – 50 mm)

Characteristics:

  • Fraction Coal - 25-50mm;
  • Total Moisture - 5-7%;
  • Ash - 27-31%;
  • Volatile Matter - 33-35%;
  • Total Sulphur - 0,28%;
  • Calorific Value - 4600-4800kcal/kg;
Application
Coal grades D, G, and anthracites are mainly applied in boiling houses because that can burn without backfraft. Coal grades of CC, OC, T are applied in order to get an electricity energy since they have increased heat of combustion, but the combustion of these grades is connected with technological difficulties. Ferrous metallurgy industries usually use grades G and ZH for the production of steel and iron.