Research on the Tracing and Fire Prevention Performance of New Mining Composite Gel

ABSTRACT

A WG/C/XG (water glass/sodium carboxymethyl cellulose/xanthan gum) gel was created in this study by incorporating a tracer indicator into the fire protection material. The gel is both a tracer and flame retardant. First, scanning electron microscopy, UV spectrophotometer, and chromatography-mass spectrometer was used to characterize the samples. The microstructure of the WG/C/XG gel was investigated, as well as its impact on high-temperature response. The average rate of tracer gas release varies significantly before and after 55°C. Moreover, the release patterns of the two tracer gases are similar, indicating that the WG/C/XG gel is suitable for the solid loading of tracer gases. A thermal analyzer and programmed warming oxidation experiment analysis were used to investigate the inhibitory effect of WG/C/XG gel on the oxidation of spontaneous coal combustion. The experimental results demonstrated that the WG/C/XG gel improved the thermal stability of coal samples and inhibited spontaneous coal combustion. In mined areas, WG/C/XG gel is an excellent tracer material.

KEYWORDS:

• Composite gel
• tracer gases
• high temperature mitigation
• monitoring and warning

Acknowledgements

This research was jointly supported by the National Natural Science Foundation of China (51904172), the China Postdoctoral Science Foundation (2020M682209), the QingdaoWest Coast New Area Science and Technology Benefiting People Project (2019-109).

Disclosure statement

The authors have no relevant financial or non-financial interests to disclose.

Authors contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Wei Lu, Zhandong Yin, Hainan Fu, Xiaowei Mou, Xingfeng Pan and Biao Kong. The first draft of the manuscript was written by Huimin Cao and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Availability of data and materials

Data sharing not applicable to this article as no datasets were generated or analyzed during the current study.

Consent to participate

All coauthors of this article have participated in the research of this paper.

Consent to publish

All authors have no objection to the paper and agree to publish.

Ethical approval

This article does not involve any ethical issues.

Additional information

Funding

The work was supported by the China Postdoctoral Science Foundation [2020M682209]; National Natural Science Foundation of China [51904172]; Natural Science Foundation of Shandong Province [ZR2019QEE041]; Research Fund of Key Laboratory of Safe and Effective Coal Mining [JYBSYS2020102]