市政污泥干化-独立焚烧系统的模拟及优化

赵亮; 李昂; 罗赛贝; 张海

doi:10.19805/j.cnki.jcspe.2026.240679

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市政污泥干化-独立焚烧系统的模拟及优化

绿色低碳 | 更新时间：2026-10-10

- 市政污泥干化-独立焚烧系统的模拟及优化
- Simulation and Optimization of Drying-Independent Incineration System for Municipal Sludge
- 动力工程学报 2026年46卷第4期页码：172-180
- 作者机构：
  
  1. 上海发电设备成套设计研究院有限责任公司,上海,200240
  2. 上海交通大学机械与动力工程学院,上海,200240
- 作者简介：
  
  赵亮(1986-),男,江苏淮安人,高级工程师,硕士研究生,主要从事火电厂废气、废水及固废等处置技术的研究,E-mail:zhaoliang@speri.com.cn。
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2026.240679
  中图分类号： X502
- 纸质出版：2026
- 稿件说明：
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赵亮, 李昂, 罗赛贝, 张海. 市政污泥干化-独立焚烧系统的模拟及优化[J]. 动力工程学报, 2026, 46(4): 172-180.
赵亮, 李昂, 罗赛贝, 张海. 市政污泥干化-独立焚烧系统的模拟及优化[J]. 动力工程学报, 2026, 46(4): 172-180. DOI： 10.19805/j.cnki.jcspe.2026.240679.

DOI： 10.19805/j.cnki.jcspe.2026.240679

摘要

利用数值模拟软件对市政污泥干化-独立焚烧系统进行了模拟

探讨了湿污泥含水率、入炉污泥含水率、入炉空气温度、过量空气系数及天然气补燃等对污泥焚烧系统关键参数、污染物排放特性及运行收益的影响。结果表明:入炉污泥含水率、过量空气系数等主要影响焚烧炉内燃烧温度、锅炉蒸发量和辅助蒸汽量等关键参数;污泥焚烧污染物排放特性主要受炉膛内燃烧温度、过量空气系数及补燃工况的影响

其中烟气中NOx及SO2浓度主要与炉膛内燃烧温度和过量空气系数有关

而CO浓度的变化除了以上2种影响因素

还主要受补燃的影响;设定焚烧炉内平均燃烧温度为960 ℃

排烟温度为190 ℃

当入炉污泥含水率高于41%

湿污泥含水率高于79%时

系统无法维持独立焚烧

需进行天然气补燃。对运行收益影响最大的参数为湿污泥含水率。通过多变量最优化运算

针对湿污泥处置的最优收益为292.81元/t。

Abstract

The municipal sludge drying-independent incineration system was simulated using numerical simulation software

and the impacts of factors such as the moisture content of wet sludge

moisture content of sludge into the furnace

inlet air temperature to the furnace

excess air coefficient

and natural gas supplementary flow rate on key parameters of the sludge incineration system

pollutant emission characteristics

and operational benefits were explored. Results indicate that key parameters such as the combustion temperature inside the incinerator

boiler evaporation flow rate

and auxiliary steam flow rate are primarily influenced by the moisture content of sludge into the furnace and the excess air coefficient. The pollutant emission characteristics of sludge incineration are mainly affected by the combustion temperature within the furnace

the excess air coefficient

and the auxiliary combustion conditions. Among them

the concentrations of NOx and SO2 in the flue gas are primarily related to the combustion temperature within the furnace and the excess air coefficient

while changes in CO concentration are not only influenced by above two factors but also mainly affected by auxiliary combustion. When the average combustion temperature inside the incinerator is set at 960 ℃ and the exhaust gas temperature is set at 190 ℃

if the moisture content of sludge into the furnace is higher than 41%

and the wet sludge moisture content is higher than 79%

the system could not sustain independent incineration and required natural gas supplementary combustion. The parameter that has the greatest impact on operational benefits is the wet sludge moisture content. Through multi-variable optimization calculations

the optimal benefit for wet sludge disposal is determined to be 292.81 yuan/t.

关键词

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