Pulverized coal firing ensures complete combustion of coal, thus ensuring higher efficiency of steam generators. It is predominantly adopted in large coal-fired utility boilers. The finer the grinding of coal, the more efficient its combustion.

Why do we pulverize coal?

Pulverization of coal is currently the favored method of preparing coal for burning. Mechanically pulverizing coal into a fine powder enables it to be burned like a gas, thus allowing more efficient combustion. ... There are several pieces of equipment involved in processing coal to be burned in this fashion.

Why is coal crushed before burning?

The concept of burning coal that has been pulverized into a fine powder stems from the belief that if the coal is made fine enough, it will burn almost as easily and efficiently as a gas. ... As the coal gets crushed by the rolling action, the hot air dries it and blows the usable fine coal powder out to be used as fuel.