锅炉二次风是指火床上方以压力送入炉膛的强烈气流。二次风的使用对不同形式的链条锅炉、燃用不同煤种有着不同的要求。对于层式燃烧链条锅炉,使用二次风能使进入炉室的氧气和可燃气体良好的混合燃烧,减少化学不完全燃烧损失;使用二次风还能将高温烟气送到前拱下帮助燃煤点火;二次风使用合理还可以防止或减少炉室内结焦、 Boiler secondary air refers to the fire bed above the strong pressure into the furnace gas flow. The use of secondary air on different forms of chain boilers, burning different coal has different requirements. For the stratified combustion chain boiler, the use of secondary air can make the oxygen and combustible gas entering the chamber well mixed combustion, reduce the chemical incomplete combustion loss; the use of secondary air can also send high temperature flue gas to the front arch to help coal Ignition; use of secondary air is also reasonable to prevent or reduce the furnace coke,