Background
A large state-owned coal mine with an annual output of 3 million tons, located in Shanxi Province, is classified as a high-gas mine due to its significant methane emissions. The mine uses fully mechanized mining methods that can lead to gas accumulation and carbon monoxide generation. To enhance safety, the mine deployed multiple explosion-proof infrared methane sensors and electrochemical CO sensors, integrated with an advanced safety monitoring system, which successfully prevented several potential accidents.
Real-World Applications and Disaster Prevention
1. Preventing Methane Explosion at the Mining Face
- Scenario: Abnormal methane emissions occurred at a mining face due to unexpected geological changes.
- Sensor Role:
- Infrared methane sensors installed in key areas detected methane concentration rising above safety thresholds and triggered alarms.
- The monitoring system automatically cut off power and increased ventilation to disperse the gas.
- Disaster Avoided:
- Without early warning, methane could have reached explosive levels, potentially causing a catastrophic explosion.
- This real-time intervention prevented injuries and significant equipment damage.
2. Preventing Carbon Monoxide Poisoning in Tunnels
- Scenario: During excavation, signs of spontaneous combustion led to dangerous CO levels.
- Sensor Role:
- CO sensors detected hazardous concentrations and activated alarms.
- The system initiated safety protocols, including increased airflow and worker evacuation.
- Disaster Avoided:
- CO is a silent, deadly gas; timely detection ensured workers evacuated before exposure reached critical levels.
3. Monitoring Gas Buildup in Mined-Out Areas
- Scenario: Sealed sections of the mine showed methane leakage due to imperfect sealing.
- Sensor Role:
- Wireless gas sensors detected rising methane levels and triggered inert gas injection to neutralize the threat.
- Disaster Avoided:
- Unchecked gas accumulation could have led to explosions or toxic gas leaks into active mining zones.
Key Safety Improvements
- Automated Hazard Control: Sensors are linked with ventilation and power systems for immediate response.
- Robust Safety Design: Sensors meet strict explosion-proof standards, eliminating ignition risks.
- Data-Driven Predictions: Historical gas data helps optimize ventilation and anticipate risks.
Conclusion
By using explosion-proof gas sensors for real-time monitoring, the mine drastically reduced gas-related hazards, ensuring safer operations. Future integration with AI could further enhance early warning systems and prevent accidents before they occur.
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Post time: Aug-15-2025