RETROFIT OF THE CLASSIFIER FOR MPS-89G TYPE MEDIUM SPEED COAL PULVERIZOR AND PERFORMANCE TEST THEREOF

WANG Xiangwei1; SONG Zhenliang2 1.Department of Power Engineering

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RETROFIT OF THE CLASSIFIER FOR MPS-89G TYPE MEDIUM SPEED COAL PULVERIZOR AND PERFORMANCE TEST THEREOF

更新时间：2025-09-28

- RETROFIT OF THE CLASSIFIER FOR MPS-89G TYPE MEDIUM SPEED COAL PULVERIZOR AND PERFORMANCE TEST THEREOF
- Thermal Power Generation Vol. 40, Issue 5, Pages: 50-52(2011)
- 作者机构：
  
  1. 安徽电气工程职业技术学院动力工程系
  2. 华能国际电力股份公司大连电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.25
- Published：2011
- 稿件说明：
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WANG Xiangwei1, SONG Zhenliang2 1.Department of Power Engineering. RETROFIT OF THE CLASSIFIER FOR MPS-89G TYPE MEDIUM SPEED COAL PULVERIZOR AND PERFORMANCE TEST THEREOF[J]. Thermal power generation, 2011, 40(5): 50-52.
DOI：

WANG Xiangwei1, SONG Zhenliang2 1.Department of Power Engineering. RETROFIT OF THE CLASSIFIER FOR MPS-89G TYPE MEDIUM SPEED COAL PULVERIZOR AND PERFORMANCE TEST THEREOF[J]. Thermal power generation, 2011, 40(5): 50-52. DOI：

摘要

华能大连电厂二期1 150 t/h锅炉配置4台MPS-89G型中速磨煤机。为提高磨煤机适应煤质变化的能力

将A磨煤机原有的挡板式分离器改造为新型旋转式分离器。改造后采用山西大友煤作为试验煤种

确定磨煤机在不同出力下满足设计煤粉细度的分离器运行曲线

当煤种变化时可通过调整试验煤种分离器运行曲线来保证煤粉细度。改造后的性能试验表明:磨煤机旋转式分离器具有根据锅炉运行情况实时调整煤粉细度的能力

但随着煤粉变细

磨煤单耗略有增加。

Abstract

Four MPS-89G type medium speed coal pulverizors have been installed for a 1150 t/h boiler in second-phase project of Huaneng Dalian Power Plant

in order to enhance the adaptability to coal sort variation

the original damper type classifier has been demolished

and a new type classifier being installed for the A coal pulverizor.Taking Shanxi Dayou coal as the test coal

the performance test has been carried out under different capacity of the coal pulverizer.In the test

the runing curves of said pulverizor

which has to meet the requirement of coal fineness

were determined.If the coal sort changed

these curves can be adjusted to ensure the fineness of pulverized coal.The results show that the new classifier of coal pulverizor boasts the ability of adjusting fineness of pulverized coal in real-time according to the operation situation of boiler.However

as the more finely pulverized coal comes from the outlet of said classifier

the unit energy consumption rate of coal pulverizor will increase a little.

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