煤和市政污泥掺烧的灰熔融特性研究

doi:10.12096/j.2096-4528.pgt.19005

发电技术 ›› 2019, Vol. 40 ›› Issue (4): 347-354.DOI: 10.12096/j.2096-4528.pgt.19005

• 燃煤发电系统能源高效清洁利用 • 上一篇下一篇

煤和市政污泥掺烧的灰熔融特性研究

李德波¹(),崔乘亮²,蒋勇军²,史为民²,张鹏飞²,莫菲³,廖艳芬³(),马晓茜³

¹ 广东电科院能源技术有限责任公司, 广东省广州市 510080
² 广州华润热电有限公司, 广东省广州市 511455
³ 华南理工大学电力学院, 广东省广州市 510640

收稿日期:2019-01-10 出版日期:2019-08-31 发布日期:2019-09-04
作者简介:李德波(1983),男,博士,教授级高级工程师,主要从事燃煤电厂污泥掺烧理论研究、数值模拟和现场优化,煤粉燃烧高级数值模拟,大规模并行计算方法和程序开发等方面的研究, ldbyx@126.com|廖艳芬(1976),女,博士,教授,主要从事能源高效清洁利用领域研究, yfliao@scut.edu.cn
基金资助:
广东电网公司科技项目(NYKJXM20180002)

Investigation of Fusion Characteristics in Co-combustion of Coal With Municipal Sludge

Debo LI¹(),Chengliang CUI²,Yongjun JIANG²,Weimin SHI²,Pengfei ZHANG²,Fei MO³,Yanfen LIAO³(),Xiaoqian MA³

¹ Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou 510080, Guangdong Province, China
² Huarun Power Plant, Guangzhou 511455, Guangdong Province, China
³ School of Electric Power, South China University of Technology, Guangzhou 510640, Guangdong Province, China

Received:2019-01-10 Published:2019-08-31 Online:2019-09-04
Supported by:
Science and Technology Program of Guangdong Power Company(NYKJXM20180002)

摘要/Abstract

摘要：

通过利用Factsage热力学模拟软件、X射线衍射（X-ray diffraction，XRD）等分析方法，对煤与3种市政污泥按不同比例掺混后混合燃料的灰熔融特性进行研究。结果表明，在污泥添加量不超过10%时，混合燃料的灰熔点随着污泥加入比例增大而降低，这是由高温条件下碱性氧化物熔融所形成的共融体，以及磷矿物反应生成的非晶态矿物的共同作用导致的；灰熔融温度的预测趋势与实际测定数据的规律基本一致；煤中掺混污泥后矿物质之间的反应受燃烧温度的影响，低温时几乎不反应，温度升高后各矿物质间相互反应生成新的矿物质。

关键词: 污泥, 灰熔点, 结渣特性, 矿物质

Abstract:

Factsage thermodynamic simulation software and XRD analysis method were used to study the ash fusion characteristics of mixed fuel which was mixed by coal and three municipal sludges in different proportions. The results show that when the sludge addition amount does not exceed 10%, because alkaline oxides forms low temperature eutectic and the phosphorus minerals react to form amorphous mineral, the new mineral lead ash fusion temperature to decrease with the proportion of sludge added increasing. The predicted trend of the ash fusion characteristics is basically consistent with the regularity of actual measured data. The reaction between minerals is affected by combustion temperature, and it hardly occurs at low temperature; when the temperature rises, the minerals react with each other to form new minerals.

Key words: sludge, ash fusion temperature, slagging characteristics, mineral

李德波,崔乘亮,蒋勇军,史为民,张鹏飞,莫菲,廖艳芬,马晓茜. 煤和市政污泥掺烧的灰熔融特性研究[J]. 发电技术, 2019, 40(4): 347-354.

Debo LI,Chengliang CUI,Yongjun JIANG,Weimin SHI,Pengfei ZHANG,Fei MO,Yanfen LIAO,Xiaoqian MA. Investigation of Fusion Characteristics in Co-combustion of Coal With Municipal Sludge[J]. Power Generation Technology, 2019, 40(4): 347-354.

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煤和市政污泥掺烧的灰熔融特性研究

Investigation of Fusion Characteristics in Co-combustion of Coal With Municipal Sludge

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