Grindability of Coal – the new approach

Abstract

The method of evaluation of grindability of hard coal and its blend is shown. The standard Hardgrove test is used as a base to work out this method. The essence of this method consists in the simulation of the milling process in a close circuit (mill-classifier) and the determination of energy consumption and quantity of product under the constant feed flow. The research equipment designed specially for this project is described.

Keywords

• grindability
• coal
• Hardgrove method