Question

Q. Which of the following correctly describes the function of a pulverizer in thermal power plants?

• A. It passes the intermittent electric current for the periodic firing of chimneys
• B. It separated fly ash from the bottom ash
• C. It helps in the removal of sulfur dioxide that can be a wet sludge or a powdered material mixed with assorted sulfates.
• D. It converts raw coal into powdered coal for combustion in steam-generating furnaces.

Answer 1

The correct option is D It converts raw coal into powdered coal for combustion in steam-generating furnaces.

Explanation:

A pulverizer is like a grinder that is a mechanical device for the grinding of many different types of materials. For example, a pulverizer is used to pulverize pieces of coal into fine particles (100μm) before placing it into a boiler, to ensure efficient combustion. Pulverizers have three functions, pulverization, drying, and classification.