Coal Mine Intelligent Fire Monitoring System

This system integrates the early warning and prevention needs for both internal and external cause fires in mines. Through multi-source data fusion, it achieves integrated perception and panoramic situation display. Relying on a big data platform, it conducts cross-validation of multi-source information, accurate risk identification and intelligent deduction, and supports hierarchical and classified early warning. Based on an expert knowledge base, it automatically generates prevention and control strategies, realizing the full-process closed-loop management and control of “early detection, accurate judgment, rapid response, and effective disposal”. It builds a proactive and integrated mine fire prevention and control system that integrates perception, analysis, early warning and decision-making, comprehensively improving the mine’s fire prevention and control as well as emergency response capabilities.

1. Mine Spontaneous Combustion Fire Monitoring and Intelligent Early Warning System

Through laser spectroscopy and cyclic sampling technology, the system accurately analyzes the concentrations of more than ten kinds of coal spontaneous combustion indicator gases. It adopts optical fiber temperature measurement technology to realize continuous temperature monitoring along the entire roadway, and deploys multi-parameter sensors in the return air corner and goaf, thus establishing a full-range fire monitoring network system in the working face.

Data is uploaded in real-time for fusion analysis. Based on the coal spontaneous combustion early warning index model, it realizes trend prediction, hierarchical early warning and linkage disposal. Combined with the advancement of the mining face, it dynamically displays the evolution process of the “three zones” in the goaf, providing decision support for scientific prevention and control.

2. Mine-used Confined Space Multi-parameter Monitoring System

Integrating automatic sampling, multi-parameter detection, data storage and real-time transmission, the system uses an armored temperature measuring probe to go deep into the interior of the closed wall to continuously monitor air temperature and water temperature. It also uses a micro air pump built into the host to collect gas samples at regular intervals, and analyzes the concentrations of spontaneous combustion indicator gases (CO, CO₂, CH₄, O₂, C₂H₄, C₂H₂, etc.) in real time.

Meanwhile, the system integrates differential pressure, absolute pressure and wind speed sensors to monitor the differential pressure inside and outside the closed wall and the roadway wind speed in real time, so as to accurately judge the air leakage status. It not only provides data support for fire prediction, but also offers key basis for the optimization of mine ventilation systems.

3. Regional Fire Detection, Early Warning and Fire Suppression Control System

This system integrates automatic alarm and intelligent fire suppression. It consists of fire monitoring sensors, integrated optical fiber vibration and temperature detection devices, and various fire suppression devices. Adopting a “point-line combination” architecture, it realizes key monitoring of critical areas, as well as full-line temperature and abnormal vibration monitoring.

Data is uploaded to the central platform in real time for fusion analysis and alarm management. According to the type and location of the fire, it intelligently links with sprinkler, dry powder or gas fire suppression devices to quickly suppress the fire and reduce secondary risks, forming a closed-loop prevention and control system covering perception, analysis, response and linkage.

4. Intelligent Fire Monitoring System for Coal Bunker

It realizes real-time collection, analysis and early warning of indicator gas concentration and temperature data in the coal bunker. It can conduct data communication with the nitrogen injection system to achieve linked control of coal bunker fire monitoring and inerting treatment.

The system covers all mine scenarios such as coal bunkers, roadways, goafs and enclosed spaces. It integrates three core capabilities: fire early warning, intelligent analysis and linkage disposal, realizing the transformation from passive response to active prevention and control. It comprehensively improves the efficiency of mine fire prevention and control and emergency response levels, ensuring the safety of mine production and personnel.