掺烧污泥对垃圾焚烧发电厂烟气净化系统的影响——以某污泥协同焚烧项目为例  

Effect of Sludge Co-incineration on Flue Gas Purification System of Waste Incineration Power Plant:A Case Study of a Sludge Co-incineration Project

作　　者：李俊成 毛梦梅 龙吉生 LI Juncheng;MAO Mengmei;LONG Jisheng(Shanghai SUS Environment Co.Ltd.,Shanghai 201703)

机构地区：[1]上海康恒环境股份有限公司,上海201703

出　　处：《环境卫生工程》2024年第3期54-58,共5页Environmental Sanitation Engineering

基　　金：南宁建宁康恒环保科技有限责任公司项目(JNKH-FD-2023-0037)。

摘　　要：以某运行的协同焚烧污泥项目为例,分析了掺烧污泥对垃圾焚烧发电厂烟气量、烟气中污染物浓度、烟气净化物料消耗与焚烧灰渣产生率的影响。结果表明:掺烧污泥后烟气量变化不明显,烟囱出口烟气SO2浓度升高,但仍能达标排放,其他污染物浓度变化不明显。污泥掺烧比例每升高1%,消石灰耗量增加0.14 kg/t (以入炉物料计),氨水耗量降低0.22 kg/t (以入炉物料计),飞灰产生率增加0.04%,炉渣产生率减少0.57%。本项目掺烧1 t污泥(含水率78%)将导致烟气净化系统运行费用增加约19.73元。A sludge co-incineration project was taken as an example,the effect of mixed sludge on flue gas volume,pollutant concentration in flue gas,material consumption of flue gas purification and incineration ash production rate in waste incineration power plant were analyzed.The results showed that the change of flue gas volume was not significantly with the sludge co-incinerated.The SO2 concentration at the chimney outlet increased while it still could meet the emission standard.The concentration of other pollutants did not change significantly.For every 1%increase in sludge mixing ratio,slaked lime consumption increased by 0.14 kg/t(based on furnace materials),ammonia water consumption decreased by 0.22 kg/t(based on furnace materials),fly ash production rate increased by 0.04%,slag production rate decreased by 0.57%.Mixing one ton of sludge(moisture content was 78%)in this project would increase the operating cost of flue gas purification system by about 19.73 yuan.

关 键 词：污泥 掺烧 垃圾焚烧 烟气净化 经济性分析 

分 类 号：X703[环境科学与工程—环境工程] X799.3