Study on the Inerting Effect and Migration Law of Nitrogen and Carbon Dioxide in Large Inclined Goaf by Physical Simulation Model-Reference-Cited by-同舟云学术

Study on the Inerting Effect and Migration Law of Nitrogen and Carbon Dioxide in Large Inclined Goaf by Physical Simulation Model

Published:2022-08-31 Issue: Volume:2022 Page:1-16
ISSN:1468-8123
Container-title:Geofluids
language:en
Short-container-title:Geofluids

Author:

Song Xiaolin¹²,Wu Chunlei¹²^ORCID,Liu Chun³,Li Yanlong¹²,Wang Zhiyu¹²,Shi Bobo¹²^ORCID

Affiliation:

1. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China

2. School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China

3. IoT Perception Mine Research Center, China University of Mining and Technology, Xuzhou 221116, China

Abstract

In this paper, the inerting effect and migration law of inert N2 and CO2 in large inclined goaf are studied using a physical simulation model. The differences in oxygen reduction and inert gas migration are analyzed and compared. The results show that as N2 and CO2 injection increased, the oxidation zone’s range and width shrunk, and the end of the loose and oxidation zones moved closer to the working face. The migration profile of CO2 and N2 resembled a trumpet and an L shape, respectively, and under the same inerting flow rate, the effect of CO2 inerting on oxygen reduction was much less significant than that of N2.

Funder

Natural Science Foundation of Jiangsu Province

Publisher

Hindawi Limited

Subject

General Earth and Planetary Sciences

Link

http://downloads.hindawi.com/journals/geofluids/2022/9295411.pdf

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