论文部分内容阅读
一、基本概况南京晨光机器厂系航空航天工业部所属生产各种机械产品的大型工厂。年耗两万吨以上标准煤,单锅炉总蒸发量为50吨/小时,其中SHL20—13/300—A一台,SHL10—16/350—A三台。原来消烟除尘采用重力沉降式除尘室,锅炉运行时含尘烟气在引风机的作用下,以3～5米/秒的流速在烟道中流动,进入沉降室后截面突然扩大,流速下降,烟气在沉降室人字墙作用下,改变流动方向,形成一股涡流,烟气中较大的尘粒借自身的重力作用而沉降
First, the basic profile Nanjing Chenguang Machinery Factory Department of Aerospace Industry belongs to the production of a variety of mechanical products factory. Annual consumption of more than 20,000 tons of standard coal, a single boiler total evaporation of 50 tons / hour, of which SHL20-13 / 300-A one, SHL10-16 / 350-A three. The original smoke and dust removal using gravity-settling chamber, dusty flue gas boiler operation in the role of induced draft fan to 3 ~ 5 m / s flow in the flue flow into the settlement after the sudden expansion of cross-section, the flow rate decreased, Flue gas in the settling chamber word wall under the action of changing the flow direction, the formation of a swirl, flue gas larger dust particles by their own gravity and settlement