Effect of sludge-coal blending combustion on operation of coal-fired boiler

ZHOU Lingyu; WANG Yikun; CHEN Gang; CHENG Ruishen; XIE Bing; ZHANG Guangcai; LIU Honggang

doi:10.19666/j.rlfd.201908179

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Effect of sludge-coal blending combustion on operation of coal-fired boiler

更新时间：2025-09-28

- Effect of sludge-coal blending combustion on operation of coal-fired boiler
- Thermal Power Generation Vol. 49, Issue 7, Pages: 77-83(2020)
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华能太仓发电有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201908179
  CLC： X705;TK227.1
- Published Online：27 June 2020，
  
  Published：2020
- 稿件说明：
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ZHOU Lingyu, WANG Yikun, CHEN Gang, et al. Effect of sludge-coal blending combustion on operation of coal-fired boiler[J]. Thermal power generation, 2020, 49(7): 77-83.
DOI：

ZHOU Lingyu, WANG Yikun, CHEN Gang, et al. Effect of sludge-coal blending combustion on operation of coal-fired boiler[J]. Thermal power generation, 2020, 49(7): 77-83. DOI： 10.19666/j.rlfd.201908179.

摘要

为了研究燃煤机组掺烧污泥后对锅炉运行的影响

针对某电厂330 MW等级燃煤机组

以能量守恒定律为基础

通过热力校核计算分析了机组在330、280、180、80 MW电负荷时

分别掺烧含水率为82%、60%、35%和10%的污泥对锅炉热效率、燃煤量、排烟温度及减温水量等参数的影响。结果表明:在掺烧污泥的含水率一定时

对锅炉运行产生的影响随负荷降低而增大;而在锅炉负荷一定时

对锅炉运行产生的影响随污泥含水率的增大而增大;在80 MW电负荷下掺烧82%含水率污泥时影响最大

其锅炉热效率降低0.89个百分点;污泥掺烧对锅炉燃煤量的影响不定

在今后的工程评价与实践中应区别对待

具体核算。

Abstract

In order to study the influence of blending sludge on operation of coal-fired boilers

thermal calculation for a 330 MW coal-fired unit was carried out

on the basis of the energy conservation equation. At the load of 330 MW

280 MW

180 MW and 80 MW

the thermal efficiency

coal consumption

exhaust temperature and spray water flux were analyzed by blending sludge with moisture content of 82%

60%

35% and 10%. The results show that

when the moisture content in the co-fired sludge is kept constant

the influence of sludge blending on the boiler operation increases as the load decreases. When the unit load is kept constant

the effect of sludge blending on the boiler operation increases with the moisture content in sludge. The maximum efficiency reduction is 0.89 percentage point at 80 MW when blending the sludge with moisture content of 82%. The influence of sludge-coal co-combustion on the coal consumption of uncertain

which should be judged and calculated under specific situations.

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