Acoustic emission detection of slag performance in coal gasifiers

Zhengliang Huang; Peng Zhang; Yao Yang; Jingyuan Sun; Jingdai Wang; Yongrong Yang; Chenghao Huang; Zhixiong Huang

doi:10.1016/j.cjche.2020.05.038

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Acoustic emission detection of slag performance in coal gasifiers

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Acoustic emission detection of slag performance in coal gasifiers
- Chinese Journal of Chemical Engineering Vol. 28, Issue 8, Pages: 2200-2207(2020)
- Affiliations：
  
  1. College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology,Hangzhou,China,310027
  2. State Key Laboratory of Chemical Engineering,Hangzhou,China,310027
  3. Sinopec Group, Anqing Branch,Anqing,China,246000
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2020.05.038
  CLC：
- Published：2020
- Accepted：
Scan QR Code
Zhengliang Huang, Peng Zhang, Yao Yang, Jingyuan Sun, Jingdai Wang, Yongrong Yang, Chenghao Huang, Zhixiong Huang. Acoustic emission detection of slag performance in coal gasifiers[J]. Chinese Journal of Chemical Engineering, 2020, 28(8): 2200-2207.
DOI：

Zhengliang Huang, Peng Zhang, Yao Yang, Jingyuan Sun, Jingdai Wang, Yongrong Yang, Chenghao Huang, Zhixiong Huang. Acoustic emission detection of slag performance in coal gasifiers[J]. Chinese Journal of Chemical Engineering, 2020, 28(8): 2200-2207. DOI： 10.1016/j.cjche.2020.05.038.

摘要

Abstract

This work first investigated the detection of slags

slag pool liquid level

and slag accumulation height in laboratory scale based on acoustic emission (AE) detection

and further tried the feasibility of this method in an industrial scale coal gasifier. Results show that the energy and variance of acoustic signals can realize the accurate detection of large slag (criterion:

1.5

1.2

)

and the average relative error is only 0.28%. The acoustic energy in the frequency range of 20-40 kHz is defined as the characteristic energy

which can realize the accurate detection of slag accumulation height and slag pool liquid level

and the average relative error is only 3.94%. Furthermore

AE detection also realize accurate detection of large slag in an industrial scale gasifier and the acoustic signals at slag screen can be used to realize the early warning of the slag collapse (5 h earlier).

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