THE COAL PULVERIZING SYSTEM FOR LOW RANK BITUMINOUS COAL FIRED BOILER MIXEDLY BURNING BROWN COAL

WU Jingxing1; LIU Jingjun2; SONG Hao3; ZHANG Yongxing1; Zou Tianshu1; LENG Jie1 1.North-east China Electric Power Science Research Institute Co Ltd

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THE COAL PULVERIZING SYSTEM FOR LOW RANK BITUMINOUS COAL FIRED BOILER MIXEDLY BURNING BROWN COAL

更新时间：2025-09-28

- THE COAL PULVERIZING SYSTEM FOR LOW RANK BITUMINOUS COAL FIRED BOILER MIXEDLY BURNING BROWN COAL
- Thermal Power Generation Vol. 41, Issue 6, Pages: 41-43(2012)
- 作者机构：
  
  1. 东北电力科学研究院有限公司
  2. 二道江发电公司
  3. 抚顺热电有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2012
- 稿件说明：
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WU Jingxing1, LIU Jingjun2, SONG Hao3, et al. THE COAL PULVERIZING SYSTEM FOR LOW RANK BITUMINOUS COAL FIRED BOILER MIXEDLY BURNING BROWN COAL[J]. Thermal power generation, 2012, 41(6): 41-43.
DOI：

WU Jingxing1, LIU Jingjun2, SONG Hao3, et al. THE COAL PULVERIZING SYSTEM FOR LOW RANK BITUMINOUS COAL FIRED BOILER MIXEDLY BURNING BROWN COAL[J]. Thermal power generation, 2012, 41(6): 41-43. DOI：

摘要

针对浑江发电公司1 025t/h劣质烟煤锅炉大比例掺烧褐煤产生的问题

在制粉系统增设了中温烟气惰化与干燥系统

在热风送粉系统增设调温风系统

在粉仓增设充氮气系统

将双通道煤粉燃烧器改为水平浓淡燃烧器。改造后掺烧50%褐煤锅炉运行安全稳定

每年可节约燃料费5 368万元

经济效益显著。

Abstract

Directing against the problems resulted from mixedly burning brown coal in large proportion for the low rank bituminous coal fired 1 025 t/h boiler in Hunjiang Power Generation Co Ltd

a mid-temperature flue gas inerting and drying system was additionally installed in the coal pulverizing sytsem

a temperature-regulating air system was installed in the hot air transporting pulverized coal system

and a nitrogen blanketing system was installed in the pulverized coal bunker

and the pulverized coal burners with two channels were retrofitled into honrizontal dense and thin burners.After retrofitting

according to proportion of 50% to burn brown coal

the operation of boiler is safe and stable

the fuel expenses can be saved by 5.436 million yuan in one year

boasting remarkable economic benefit.

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