Design and analysis of coal pulverizing system of a 1025t/h oxy-lignite fired boiler

GAO Jianqiang; WANG Ning; WANG Yulan

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Design and analysis of coal pulverizing system of a 1025t/h oxy-lignite fired boiler

更新时间：2025-09-28

- Design and analysis of coal pulverizing system of a 1025t/h oxy-lignite fired boiler
- Thermal Power Generation Vol. 44, Issue 2, Pages: 106-109(2015)
- 作者机构：
  
  华北电力大学能源动力与机械工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.6
- Published：2015
- 稿件说明：
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GAO Jianqiang, WANG Ning, WANG Yulan. Design and analysis of coal pulverizing system of a 1025t/h oxy-lignite fired boiler[J]. Thermal power generation, 2015, 44(2): 106-109.
DOI：

GAO Jianqiang, WANG Ning, WANG Yulan. Design and analysis of coal pulverizing system of a 1025t/h oxy-lignite fired boiler[J]. Thermal power generation, 2015, 44(2): 106-109. DOI：

摘要

以某燃用高水分、低硫褐煤的1 025t/h富氧燃烧锅炉制粉系统为例

采用干燥后的一次再循环烟气作为干燥剂

对制粉系统流程和磨煤机选型进行了设计和分析

并通过热力计算

确定了磨煤机出口煤粉温度、煤粉水分等参数值。结果表明:MPS200HP-Ⅱ型磨煤机能够满足高水分褐煤富氧燃烧锅炉制粉系统的需要

原煤水分变化对磨煤机出口煤粉温度、煤粉水分含量的影响较大。

Abstract

By taking the coal pulverizing system of a 1 025t/h oxy-fuel boiler firing lignite with high moisture and low sulfur as an example

process flow of the coal pulverizing system and mill type selection were designed

using the first flue gas recirculation as the desiccant.Moreover

thermal dynamic calculation was carried out to ascertain parameters values like the coal temperature and moisture at mill outlet.The results show that

the MPS200HP-Ⅱtype mill can satisfy the requirements of coal pulverizing system in oxy-coal combustion boilers which fire high-moisture lignite.Variation of moisture in raw coal has great influence on temperature and moisture of the pulverized coal at the mill outlet.

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