Progress in high-efficiency and energy-saving technologies for large-scale intelligent equipment in coal mines
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摘要:
煤矿大型智能装备高效节能技术是推动产业转型升级的核心驱动力。聚焦综采、运输、提升、供电等系统高效节能技术，围绕综采工作面10 kV电压升级、智能高效变频调速一体机、煤矿机动设备电动化与井下充换电、无转轴式磁耦合驱动立井提升机4大技术，剖析最新研究进展及关键技术：① 综采工作面10 kV供电系统升级可减少电压及电能损耗，需优化供电系统设计，强化电气安全与高压电气设备保护，并应用安全性能检验技术确保系统可靠运行。② 智能高效变频调速一体机集成变频控制与永磁直驱电动机技术，以及智能控制和预测性维护技术，可提高煤矿设备运行效率、可靠性和节能效果，降低设备故障率和维护成本。③ 井下设备电动化升级依靠高性能锂电池、数字化线控、自动驾驶和智能调度技术，实现零排放、低噪声和高效运行，配合以防爆锂电池电源标准化、快速换电、车桩电协同全时管理、充换电站应急处置为核心的井下充换电技术，降低设备里程焦虑。④ 无转轴式磁耦合驱动提升机通过一体化磁耦合驱动系统、多通道防冲击安全制动系统及关键部件健康管理技术，提升矿井运输效率和设备稳定性，解决了传统提升机能效低、故障率高等问题。
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关键词:
- 煤矿智能化 /
- 绿色矿山 /
- 煤矿装备高效节能 /
- 工作面10 kV电压升级 /
- 智能高效变频调速一体机 /
- 井下充换电 /
- 无转轴式磁耦合驱动提升机
Abstract:High-efficiency and energy-saving technologies for large-scale intelligent equipment in coal mines are a key driving force for industrial transformation and upgrading. Focusing on high-efficiency and energy-saving technologies in systems such as fully mechanized mining, transportation, hoisting, and power supply, this paper analyzes the latest research progress and key technologies across four areas: 10 kV voltage upgrades at fully mechanized working faces, intelligent high-efficiency variable frequency drive integrated units, electrification and underground charging/swap systems for mobile coal mine equipment, and shaft hoists with shaftless magnetic coupling drives. ① 10 kV power supply system upgrades at fully mechanized working faces can reduce voltage and electric energy losses. This requires optimized power system design, enhanced electrical safety and high-voltage equipment protection, and the application of safety performance testing technologies to ensure reliable operation. ② The intelligent high-efficiency variable frequency drive integrated unit combines variable frequency control and permanent magnet direct drive motor technology with intelligent control and predictive maintenance, improving operational efficiency, reliability, and energy savings while reducing equipment failure rates and maintenance costs. ③ Electrification of underground equipment relies on high-performance lithium batteries, digital drive-by-wire systems, autonomous driving, and intelligent dispatching. This achieves zero emissions, low noise, and high efficiency. Supported by standardized explosion-proof lithium battery power, rapid battery swapping, vehicle-charger coordination with full-time management, and emergency response mechanisms at charging/swap stations, the technology helps alleviate range anxiety in underground operations. ④ The shaftless magnetic coupling drive hoist enhances mine transport efficiency and equipment stability through an integrated magnetic coupling drive system, a multi-channel anti-shock safety braking system, and health management technologies for key components—addressing the low efficiency and high failure rates of traditional hoists.
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图 1 综采工作面电压升级发展历程
Figure 1. Development history of voltage upgrade at fully mechanized mining faces
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图 2 综采工作面10 kV供电系统网络拓扑
Figure 2. Network topology of 10 kV power supply system at fully mechanized mining faces
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图 3 综采工作面10 kV电压升级技术安全问题
Figure 3. Safety issues in 10 kV voltage upgrade technology at fully mechanized mining faces
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