The metallization of finished pellets is close to the nature of the coal, it is beneficial effect on the reduction by use high volatile coal.

In the dry distillation period inside, the volatile coal into small molecule hydrocarbons and exhalation, centralized recovery or improve gas calorific value.

The application of horizontal dense-dilute technology in some boilers has resolved many problems, such as the fire, self-supporting burning and burn-up problem of low volatile coal.