In coal mining operations, communication cables are not only used for information transmission“Neural network”It is also a key infrastructure for ensuring safe production and improving operational efficiency. Compared to ordinary communication cables, communication cables used in coal mines have formed unique performance advantages through material innovation, structural optimization, and safety certification, and are widely used in underground communication, monitoring, scheduling, and emergency command scenarios. This article will analyze from three aspects: technological advantages, application scenarios, and industry value.

1、 Technical advantage: adaptable to extreme environments“hardcore”performance

Flame retardant and explosion-proof, safeguarding life safety

There are flammable and explosive substances such as methane and coal dust in coal mines, and ordinary cables are prone to fire or explosion under high temperature or electric spark. Communication cables for coal mines (such asMHYVTheMGTSVSeries) adopts flame-retardant polyvinyl chloride（PVC）Or low smoke halogen-free（LSZH）Sheath, throughMT818-2011Certified according to the "Flame retardant Communication Cable for Coal Mines" standard, it will not ignite surrounding combustibles during combustion and has a smoke density lower than50%Toxicity index≤10Strive for critical time for underground personnel to escape. For example, in a fire accident at a coal mine in Shaanxi, flame-retardant cables ensured the continuous operation of the emergency communication system and supported it300The safe evacuation of the remaining miners.

Anti interference and high bandwidth ensure data stability

Underground equipment is dense, electromagnetic interference is strong, and traditional cables are prone to signal attenuation or distortion. The communication cables used in coal mines are designed with tin plated copper wire braided shielding layer and full chromatographic insulation, effectively suppressing external noise and reducing signal transmission attenuation rate to0.8dB/km（800-1000HzFrequency band), supporting parallel operation of multiple systems such as voice scheduling, video surveillance, and personnel positioning. For example, Shandong Energy Group adoptsMGTSVUnderground construction of optical cable5GThe network has achieved4KReal time video transmission with latency below20ms.

High mechanical strength, suitable for complex working conditions

Underground cables need to withstand compression, bending, pulling, and chemical corrosion. Reinforced cables (such asMHY32TheMHYBV）Adopting a steel wire armor structure, the tensile strength reaches120N/mm²Can withstand the self weight and transportation equipment impact during vertical laying; Flexible version (such asMHYVR）The minimum bending radius is only6Multiple cable outer diameter, suitable for dynamic wiring requirements of mobile equipment such as coal mining machines and tunneling machines.

2、 Application scenario: Full link coverage from communication to intelligence

Underground core communication network

Backbone link:MGTSVFiber optic cables connect various underground areas with the ground dispatch center, transmitting voice, video, and production data, and supporting 100 concurrent communications.

Branch link:MHYVThe cable extends to key stations such as distribution chambers and water pump rooms to achieve real-time transmission of equipment status data (such as voltage and current).

Security monitoring system

Gas monitoring: Connect distributed sensors to transmit methane concentration data at high speed to the ground platform. When the concentration exceeds the standard, an alarm will be automatically triggered and the power will be cut off.

Roof pressure monitoring: adapted with displacement sensors, transmitting deformation data of surrounding rock, assisting in determining support stability, and preventing roof collapse accidents.

Emergency Command and Rescue

In the event of sudden accidents such as fires and water leaks, flame-retardant cables ensure the smooth flow of critical links, supporting voice communication, video conferencing, and location tracking between emergency rescue command centers and underground personnel. For example,2024In a coal mine flooding accident in Guizhou province,MGTSVThe redundant design of the optical cable ensures3An independent communication channel provides real-time basis for the development of rescue plans.

Intelligent production scheduling

Personnel positioning system: throughMHYVPCable transmissionUWBPositioning label data, formed in the scheduling center“Personnel distribution heatmap”Optimize manpower allocation.

Remote control of equipment: Connect coal mining machines, scraper conveyors, and other equipment to achieve remote operation of start, stop, and speed regulation, improving work efficiency.

3、 Industry value: promoting the dual improvement of coal mine safety and efficiency

Safety benefits

According to statistics, the accident rate of coal mines using flame-retardant communication cables has decreased60%Reduction of secondary disasters caused by communication interruptions85%For example, after the comprehensive replacement of traditional cables in coal mines under the National Energy Group, the annual average reduction in production losses caused by cable failures exceeded2000Ten thousand yuan.

economic benefits

Long service life of communication cables used in coal mines15Over years old, it is a regular cable3Doubling, reducing overall maintenance costs40%At the same time, the high bandwidth feature supports intelligent device access, promoting“Depersonalization”Mining reduces labor costs for individual wells30%.

social benefits

With the "Guidelines for Intelligent Construction of Coal Mines"（2025The release of the "Edition" has made communication cables for coal mines a construction tool“Transparent mine”“Digital Twin”The infrastructure. Its technological iteration (such as5G+Fiber optic cable integration will further promote industry transformation and upgrading, helping to achieve“Zero deaths”Goal.

4、 Conclusion

Communication cables used in coal mines have become the core advantage of underground communication systems due to their flame retardant, explosion-proof, anti-interference, and high mechanical strength“safety valve”With“Efficiency engine”From traditional voice scheduling to intelligent monitoring, and then to the future5G+With the integrated application of industrial Internet, its technological evolution has always resonated with the demand for coal mine safety at the same frequency. With the continuous improvement of industry standards (such asGB 12706-2020）The communication cables used in coal mines will continue to provide hardcore support for the high-quality development of mines and become a key infrastructure for the digital transformation of the energy sector.