Automatic fire extinguishing system for monorail cranes in coal mines: a new benchmark for intelligent safety and security
1. Industry Background and Safety Challenges
Underground environment of coal mine is complex, there are gas, coal dust explosion risk and high temperature, humidity and other harsh working conditions. As an important transportation equipment in underground coal mines, monorail crane undertakes the task of transporting people, materials and equipments, and its operation safety is directly related to the production efficiency of the mines and the safety of people's lives. Traditional fire-fighting means due to response lag, insufficient coverage and other issues, it is difficult to meet the protection needs of monorail crane dynamic operation. In view of this pain point, Shandong Zhongdao fire research and development of coal mine monorail crane automatic fire extinguishing system device came into being, through intelligent monitoring and accurate fire extinguishing technology, for mine transportation safety provides an innovative solution.
2, the system overview and technical principle
Coal mine monorail crane automatic fire extinguishing system device is designed for monorail crane operating environment, real-time monitoring, rapid warning and automatic fire extinguishing functions in one, the core consists of the following modules:
Intelligent detection module
Adopting multi-spectrum infrared thermal imaging technology and high-precision smoke sensing technology, combined with temperature gradient analysis algorithm, it can real-time monitor the temperature changes and fire signals in the engine compartment of the monorail crane, the hydraulic system, the electrical cabinet and other key parts of the monorail crane.
Supports graded warning mechanism: when the temperature is abnormal or the smoke concentration exceeds the standard, the system triggers sound and light alarms and uploads the data to the mine monitoring center synchronously, buying time for manual intervention.
Efficient Fire Extinguishing Module
Equipped with customized extinguishing agent spraying device, which is automatically activated according to the fire level. The system prioritizes neutral gas extinguishing agent (such as perfluorohexanone), which has the characteristics of rapid cooling, non-corrosive, environmentally friendly and non-toxic, etc. It can effectively extinguish electrical fires and oil fires to avoid secondary damage.
The layout of the nozzle is optimized by fluid dynamics simulation to ensure that the extinguishing agent covers the fire source area and reduces the interference to the equipment and personnel at the same time.
Explosion-proof and Reliability Design
The key components of the system have passed the Ex d I Mb class explosion-proof certification, adapting to the flammable and explosive environment of coal mines.
Adopting redundant power supply (lithium battery + intrinsically safe power supply), it has strong anti-interference ability and ensures continuous operation under extreme working conditions.
3、Technical Advantages and Innovations
Accurate prevention and control, reduce losses
The system recognizes the fire development pattern through AI algorithm, and can provide early warning at the budding stage of fire (before the temperature reaches the set threshold), with the response time of fire extinguishing ≤ 3 seconds, which improves the efficiency by more than 80% compared with the traditional means, and significantly reduces the risk of equipment damage and production stoppage.
Modularized design, flexible adaptation
It supports the customization of detection units and the number of nozzles according to the model of monorail crane and the characteristics of operation area, and is compatible with diesel-driven and electric-driven models, which is applicable to various scenarios such as mining face and transportation roadway.
Intelligent management platform
Integrating the Internet of Things (IoT) technology, the fire extinguishing system is interconnected with the mine safety monitoring system, realizing remote status monitoring, fault diagnosis and data retrospectivity, and assisting in upgrading the digital safety management of the mine.
4、Future Prospect
As the Coal Mine Safety Regulations enhance the requirements for intelligent disaster prevention, Golden Mean Fire-Fighting Equipment Co.,LTD. continues to optimize the performance of the system, and plans to integrate 5G communication and edge computing technology to further improve the accuracy of fire prediction and the ability of multi-equipment collaborative firefighting to provide a cornerstone of safety and security for the intelligent transformation of mines.
Conclusion
Through technological innovation and scenario-based design, the automatic fire extinguishing system device for monorail cranes in coal mines has solved the limitations of traditional fire-fighting means in the dynamic operating environment, and has become an important breakthrough in the field of mine transportation safety. Shandong Zhongdao Fire Protection, with its patented technology and engineering experience, is promoting the industry to move forward to a more efficient and intelligent safety protection era.
