Dynamic characteristics and mathematic models of process parameters of ball mills with double inlets and outlets

WAN Wenjun; LIU Hao; HUANG Weijian; CHEN Shihe

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Dynamic characteristics and mathematic models of process parameters of ball mills with double inlets and outlets

更新时间：2025-09-28

- Dynamic characteristics and mathematic models of process parameters of ball mills with double inlets and outlets
- Thermal Power Generation Vol. 44, Issue 11, Pages: 58-61(2015)
- 作者机构：
  
  1. 广东电网有限责任公司电力科学研究院
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2015
- 稿件说明：
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WAN Wenjun, LIU Hao, HUANG Weijian, et al. Dynamic characteristics and mathematic models of process parameters of ball mills with double inlets and outlets[J]. Thermal power generation, 2015, 44(11): 58-61.
DOI：

WAN Wenjun, LIU Hao, HUANG Weijian, et al. Dynamic characteristics and mathematic models of process parameters of ball mills with double inlets and outlets[J]. Thermal power generation, 2015, 44(11): 58-61. DOI：

摘要

由于缺乏反映火电机组锅炉制粉系统双进双出磨煤机过程参数动态特性的数学模型

因此使得难以对磨煤机进行自动控制

从而降低了机组运行的经济性。对此

本文基于对双进双出磨煤机料位、出口温度、入炉煤量等过程参数的分析

采用机理建模方法建立了过程参数的动态特性数学模型

并结合实际运行数据对料位动态特性数学模型进行了验证。结果表明

所建模型输出与实际料位动态特性基本吻合

因此该模型可用于表征实际过程参数的动态特性。

Abstract

Automation level in thermal power units with double inlets and double outlets coal mills is relatively low because the mills dynamic characteristics and mathematical models were lack of studying.Thus the unit operation economy is decreased.Against this problem

the process parameters of the coal mill with double inlets and outlets were investigated

such as the pulverized coal level

outlets temperature and feed coal flow.On this basis

the mechanism modeling method was employed to establish the mathematic model for process parameters' dynamic characteristics.Moreover

combing with the practical running data

the pulverized coal level model was verified.The results show that

the output of the built model agrees well with the actual coal level's change

indicating this established model is applicable for describing the real dynamic characteristics of process parameters.

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