NUMERICAL SIMULATION OF COAL PARTICLE FLOW IN THE COAL PULVERIZER

DONG Suyan1; LIU Songling1; HU Bin2; YANG Wenhao2 1.College of Power and Energy

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NUMERICAL SIMULATION OF COAL PARTICLE FLOW IN THE COAL PULVERIZER

Thermal Power Generation Vol. 41, Issue 2, Pages: 20-23(2012)

更新时间：2025-09-28

- NUMERICAL SIMULATION OF COAL PARTICLE FLOW IN THE COAL PULVERIZER
- 作者机构：
  
  1. 西北工业大学动力与能源学院
  2. 北京博希格动力技术有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.25
- Published：2012
- 稿件说明：
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DONG Suyan1, LIU Songling1, HU Bin2, et al. NUMERICAL SIMULATION OF COAL PARTICLE FLOW IN THE COAL PULVERIZER[J]. Thermal Power Generation, 2012, 41(2): 20-23.
DOI：

DONG Suyan1, LIU Songling1, HU Bin2, et al. NUMERICAL SIMULATION OF COAL PARTICLE FLOW IN THE COAL PULVERIZER[J]. Thermal Power Generation, 2012, 41(2): 20-23. DOI：

摘要

对磨煤机的三维几何模型进行了拉格朗日离散相模拟分析

得到了不同粒径、旋转分离器不同转速下煤粉颗粒的运动规律。研究了磨煤机内煤颗粒粒径和旋转分离器喉口尺寸对分离效率的影响

指出通过放大旋转分离器喉口尺寸

在不增加磨煤机压力损失的前提下可以提高煤粉分离效率及改善煤粉的细度分布。

Abstract

The Lagrangian discrete phase simulations and analysis have been carried out for three dimentional geometric model of the coal pulverizer

the movement regularity of coal particles with different particle size being obtained at different rotation speed of the classifier

and then the influence of particle size concerning coal in the pulverizer and throat size of the rotary classifier upon the separation efficiency has been studied.Through enlarging the throat size

the separation efficiency and coal fineness distribution have been improved without increasing the pressure loss in coal pulverizer.

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