Adaptability of coal pulverizing systems when high-volatile coal is burned or co-fired

WANG Chunchang; WANG Zhigang

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Adaptability of coal pulverizing systems when high-volatile coal is burned or co-fired

Thermal Power Generation Vol. 44, Issue 5, Pages: 35-38(2015)

更新时间：2025-09-28

- Adaptability of coal pulverizing systems when high-volatile coal is burned or co-fired
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.25
- Published：2015
- 稿件说明：
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WANG Chunchang, WANG Zhigang. Adaptability of coal pulverizing systems when high-volatile coal is burned or co-fired[J]. Thermal Power Generation, 2015, 44(5): 35-38.
DOI：

WANG Chunchang, WANG Zhigang. Adaptability of coal pulverizing systems when high-volatile coal is burned or co-fired[J]. Thermal Power Generation, 2015, 44(5): 35-38. DOI：

摘要

对比分析了各种制粉系统在锅炉燃煤变化时对燃煤的适应性

提出了各类制粉系统在锅炉掺烧或改烧高挥发分煤时的改进途径及技术措施。中储式热风送粉系统对高挥发煤的适应性较差

对混煤的适应性也较差

该类锅炉掺烧或改烧高挥发分煤时

中储式热风送粉系统需通过增加热一次风加热器降低一次风粉温度

与掺冷风技术相比

该技术节能效果明显。

Abstract

The adaptability of coal pulverizing systems when the fired coal changed was comparatively analyzed.On this basis

the improvement ways and technical measures were put forward for each pulverizing system

when the high-volatile coal is burned or co-fired.The intermediate coal pulverizing system with hot air blowing has poor adaptability to high-volatile coal and mix coals.For this type of boilers

when highvolatile coal is used

the hot primary air heater should be added to decrease the primary air/fuel temperature.Compared with the cold air blending technology

this hot primary air heater scheme has obvious energy saving effect.

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