High Temperature Gas Permeability Tester for Refractories and Its Application

doi:10.19691/j.cnki.1004-4493.2020.01.007

China's Refractories ›› 2020, Vol. 29 ›› Issue (1): 36-39.DOI: 10.19691/j.cnki.1004-4493.2020.01.007

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High Temperature Gas Permeability Tester for Refractories and Its Application

HU Piao^*(), SONG Yanyan, WANG Zhanmin, LI Ruhang, LI Xiaorui

Sinosteel Luoyang Institute of Refractories Research Co., Ltd., Luoyang 471039, China

Online:2020-01-10 Published:2020-01-10
Contact: HU Piao
About author:Hu Piao, born in 1984, is a senior engineer. He graduated from Wuhan University of Science and Technology and received his bachelor’s degree in 2005. From 2005-2017, he worked as the vice manager in the Oxide Refractories Plant of Sinosteel Luoyang Institute of Refractories Research Co., Ltd. Since 2018, he has been working as the manager of the Instrument and Equipment Works of the the same institute. His research interests are mainly in oxide refractories and high temperature testing equipment for refractories.

Abstract

Abstract:

In this paper, an ideal structural model and a scientific and practical mathematical model of high temperature permeability testing technology were established based on the formula of gas permeability at room temperature according to Darcy’s equation and Forchheimer equation and combined with the basic law of gas mechanics and the resistance loss of gas movement process at high temperatures. Through a gas heater, the safe heating of gas from room temperature to the test temperature was realized; the pressure sealing of high temperature permeability test technology was studied using high temperature resistant flexible material instead of silica gel material and combining preloading with system expansion and continuous loading. Based on the above research, a high temperature gas permeability tester for refractories has been developed and the test temperature can be up to 1 000 ℃. The equipment was applied to research refractories, showing well using effects.

Key words: high temperature, gas permeability, application

HU Piao, SONG Yanyan, WANG Zhanmin, LI Ruhang, LI Xiaorui. High Temperature Gas Permeability Tester for Refractories and Its Application[J]. China's Refractories, 2020, 29(1): 36-39.

Model	Equations
Model	Incompressible fluid	Compressible fluid
Darcy
Forchh-eimer

Model	Equations
Model	Incompressible fluid	Compressible fluid
Darcy
Forchh-eimer

T /℃	Corundum brick permeability constant/ ×10^-14 m²		High alumina brick permeability constant/ ×10^-14 m²
T /℃	K₁	K₂	K₁	K₂
60	10.27	19.17	11.23	22.60
200	11.06	8.69	9.98	9.22
400	13.61	4.43	9.61	4.32
600	16.47	2.98	9.67	2.78
800	16.67	2.88	10.26	1.91
1 000	16.87	1.02	9.97	1.32

T /℃	Corundum brick permeability constant/ ×10^-14 m²		High alumina brick permeability constant/ ×10^-14 m²
T /℃	K₁	K₂	K₁	K₂
60	10.27	19.17	11.23	22.60
200	11.06	8.69	9.98	9.22
400	13.61	4.43	9.61	4.32
600	16.47	2.98	9.67	2.78
800	16.67	2.88	10.26	1.91
1 000	16.87	1.02	9.97	1.32

[1]	Zhao Jin, Wang Zhanmin, Cao Xiying . Status of gas permeability of refractory castables. Naihuo Cailiao (Refractories, in Chinese), 2014,48(2):149-153.
[2]	Yu Xiaomin, Wang Zhanmin, Zhao Huizhong . Hennan: CN 208026591U(2018).
[3]	Yu Xiaomin, Wang Zhanmin, Zhao Huizhong . Hennan: CN 108020495A(2018).

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High Temperature Gas Permeability Tester for Refractories and Its Application

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