生活垃圾焚烧厂炉渣热灼减率影响因素  

Factors Affecting Ignition Loss in Domestic Waste Incineration Plants

作　　者：张轲囝 Zhang Kenan(Shanghai SUS Envionment Co.Ltd.,Shanghai 201703,China)

机构地区：[1]上海康恒环境股份有限公司,上海201703

出　　处：《机电工程技术》2024年第5期294-297,306,共5页Mechanical & Electrical Engineering Technology

摘　　要：为提高生活垃圾焚烧发电厂精细化管理水平,从控制炉渣热灼减率入手,通过热灼减率的检测方式、垃圾热值及燃烧的稳定性3个影响因素开展研究,对义乌某生活垃圾焚烧(炉排炉)项目热灼减率数据进行收集,采用控制变量法及数据回归分析法对数据进行分析,并对分析结果进行对比。结果表明:检测方式的取样位置宜选在炉渣输送设备上或其末端落渣部位,该取样位置的热灼减率均值比渣坑取样的均值低了1.49%;垃圾热值与热灼减率呈负相关,2021年热值较2020年升高973.459 kJ/kg,热灼减率降低0.68%;蒸发量波动率与热灼减率呈正相关,蒸发量波动率最高与最低点的热灼减率差值为1.32%;热灼减率与燃烧异常情况占比呈正相关,异常情况占比最大时的热灼减率比最低时高出2.4%。研究有助于提升对生活垃圾炉排炉炉渣热灼减率控制的水平,开拓了生活垃圾焚烧发电厂精细化管理的思路。In order to improve the fine management level of domestic waste incineration power plant,starting from the control of slag ignition loss,the data of ignition loss of a domestic waste incineration(grate furnace)project in Yiwu are collected through three influencing factors:the detection method of thermal reduction rate,the calorific value of waste and the stability of combustion,and the data are analyzed by control variable method and data regression analysis method,and the analysis results are compared.The results show that the sampling location of the detection method should be selected on the slag conveying equipment or its end slag falling part,and the mean value of the ignition loss at this sampling location is 1.49%lower than that of the slag pit sampling,the calorific value of the garbage is negatively correlated with the ignition loss,the calorific value in 2021 is 973.459 kJ/kg higher than that in 2020,and the ignition loss decreases by 0.68%,the steam evaporation fluctuation rate is positively correlated with the ignition loss,and the difference between the highest and lowest points of the evaporation fluctuation rate is 1.32%.There is a positive correlation between the ignition loss and the proportion of combustion anomalies,and the ignition loss is 2.4%higher than that at the lowest when the anomalies accounted for the largest proportion.This study is helpful to improve the level of control of ignition loss of domestic waste grate grate furnace slag,and opens up the idea of fine management of domestic waste incineration power plant.

关 键 词：生活垃圾焚烧 精细化管理 热灼减率 检测方式 垃圾热值 燃烧的稳定性 炉排炉 

分 类 号：X799.3[环境科学与工程—环境工程]