Description

This document, “A Guide to Clean and Efficient Operation of Coal-Stoker-Fired Boilers,” published by the American Boiler Manufacturers Association (ABMA), serves as a practical reference for boiler operators seeking to improve the efficiency, reliability, and environmental performance of coal-fired stoker boilers. The guide explains the design and operation of underfeed, overfeed, and spreader stokers; the fundamentals of coal combustion; factors affecting boiler efficiency; and the causes of common emissions such as particulate matter, carbon monoxide, sulfur oxides, and nitrogen oxides. It provides operational best practices for optimizing excess air, overfire air, firing rates, maintenance programs, soot blower use, and cinder reinjection, while also offering recommendations for coal sizing and stoker selection. The document is intended to help operators reduce fuel consumption, minimize emissions, and maintain safe, clean, and efficient boiler operation.