水冷壁气化炉熔渣表面形态的几何特性

XU Ying; LIN Weining; LIANG Qinfeng; LIU Haifeng; YU Zunhong

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水冷壁气化炉熔渣表面形态的几何特性

更新时间：2025-12-10

- 水冷壁气化炉熔渣表面形态的几何特性
- CIESC Journal Issue 12, (2007)
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- Online First：05 December 2007，
  
  Published：05 December 2007
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XU Ying, LIN Weining, LIANG Qinfeng, et al. 水冷壁气化炉熔渣表面形态的几何特性[J]. CIESC Journal, 2007, (12).
DOI：

XU Ying, LIN Weining, LIANG Qinfeng, et al. 水冷壁气化炉熔渣表面形态的几何特性[J]. CIESC Journal, 2007, (12). DOI：

摘要

在小型气流床气化炉中进行了水冷壁结渣实验，研究了不同温度下炉内熔渣的表面形态，并进行了定量分析。本文提出了当量温度T的概念，T等于熔渣温度与灰熔点的比值。利用图像分析软件ImageJ测得熔渣表面粗糙度，当量温度小于1时，粗糙度较高；当量温度大于1时，粗糙度较低。用“小岛法”求得了熔渣表面的分形维数，并得到了当量温度与分维数之间的关系。

Abstract

The test of slagging on water cooled wall was performed in a lab-scale entrained-flow gasifier. The gasifier’s slag surface morphology at different temperatures was studied and analyzed quantitatively. The equivalent temperature (T) was proposed

which was the ratio of slag real temperature and ash fusion temperature. The slag surface roughness was obtained by using ImageJ image analysis software. The slag surface was smoother when T>1. 0 than that of T<1. 0. Using fractal theory

the geometric characteristics of slag surface were quantitatively shown by fractal dimensions

and the relationship between equivalent temperature and fractal dimensions was found. The results showed that the whole spread of molten slag particles required T be greater than 1. 0 too.

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