A MATHEMATIC MODEL FOR PREDICTING VISCOSITY-TEMPERATURE PROPERTIES OF THE COAL ASH

XU Shi-shen; WANG Bao-min; LI Guang-yu; LIU Gang; REN Yong-qiang; XIA Jun-cang; LI Xiao-yuXi'an Thermal Power Research Institute Co Ltd

doi:10.19666/j.rlfd.2007.07.002

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A MATHEMATIC MODEL FOR PREDICTING VISCOSITY-TEMPERATURE PROPERTIES OF THE COAL ASH

更新时间：2025-09-28

- A MATHEMATIC MODEL FOR PREDICTING VISCOSITY-TEMPERATURE PROPERTIES OF THE COAL ASH
- Thermal Power Generation Issue 7, Pages: 5-7(2007)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2007.07.002
  CLC： TQ533
- Published：2007
- 稿件说明：
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XU Shi-shen, WANG Bao-min, LI Guang-yu, et al. A MATHEMATIC MODEL FOR PREDICTING VISCOSITY-TEMPERATURE PROPERTIES OF THE COAL ASH[J]. Thermal power generation, 2007, (7): 5-7.
DOI：

XU Shi-shen, WANG Bao-min, LI Guang-yu, et al. A MATHEMATIC MODEL FOR PREDICTING VISCOSITY-TEMPERATURE PROPERTIES OF THE COAL ASH[J]. Thermal power generation, 2007, (7): 5-7. DOI： 10.19666/j.rlfd.2007.07.002.

摘要

整理煤气化产生灰渣的粘温特性试验数据

发现当煤灰粘度η150 Pa.s时log(η/(T-Ts))和1/(T-Ts)存在线性关系。同时

推导出log(η/(T-Ts))和1/(T-Ts)存在线性关系时Ts为灰渣的凝固温度。利用多元线形回归

综合考虑SiO2、Al2O3、Fe2O3、CaO、Na2O等组分的影响

得到了预测灰渣粘度的经验公式。用3个煤种对预测模型进行了检验

结果显示预测的灰渣粘度与试验值吻合较好。

Abstract

Sorting out the test data of viscosity-temperature properties for coal ash produced from coal gasification

it has been discovered that a linear relationship is existing between log(n/(T-Ts)) and 1/(T-Ts) in the event of viscosity of coal ash η150 Pa·S.At the same time

it has been deduced that the Ts to be the solidifying temperature of ash at time the linear relationship is existing between log(η/(T/Ts)) and 1/(T-Ts).Adopting multivariate linear regression

and comprehensively considering influence of components SiO2

Al2O3

Fe2O3

CaO

and Na2O etc.

an empiric formula for prediction of the viscosity has been obtained.The prediction model has been examined by using three coal sorts.the results show that the predicted viscosity of ash tallies well with the test value.

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