The Largest CFB Boiler (440t/h) in China and Power Station Design

Xinxiang Thermal Power Plant Construction Project adopts the first largest set of CFB boiler. The paper makes an introduction to its characteristics in practical use. The boiler has the proper construction, advanced technique, complete function and reliable operation after technological improvements in abrasion proof, desulfurizing, jellaba, high–temperature cyclone separator, ash cooler and combustor. The paper also discuss on the unfeasible side bunker program, optimum design on span of deaerator and coal bunker bay, no adoption of independent control building and whole platform on the operating floor of boiler, no enclosure below boiler operating floor in detail. It greatly decreased the project cost on the premise of safety and economic operation.