Coal “unmanned mining” still faces challenges

Wang Guofa said that intelligent perception, intelligent decision-making and automatic control are the three elements of intelligent mining of coal. The distinguishing feature of intelligent mining is that it has the functions of self-awareness, self-control and self-correction. It has the ability of self-sensing, self-control and self-correction. The intelligent comprehensive mining system with such capability can fully respond to changes in the production environment and realize Intelligent mining in the true sense of the world, achieving unmanned mining targets under limited conditions.

It is understood that foreign countries began to develop coal mine automation intelligent technology from the 1990s. In 2007, China developed the first set of hydraulic support electrohydraulic control system to replace imported, which is the most important foundation of the fully mechanized automation system. In the past ten years, with the support of the national 863, 973 and intelligent manufacturing special projects, we have achieved a series of intelligent mining technology innovation achievements.

“Many coal enterprises have grasped the new trend of technology development. For example, the demonstration work surface of Huangling No. 1 Mine has realized the normal production of unmanned operation and people's inspections.” Wang Guofa said that it is necessary to comprehensively promote the advancement of intelligent mining technology and accelerate Improve coal resource management and production capacity layout, eliminate backward mining methods and production capacity equipment; increase the original innovation of intelligent mining, improve the international competitiveness of the industry; improve the management level of intelligent mining of coal mines, and improve the efficiency and quality of each link.

Limited unmanned mining is the middle and advanced stage of intelligent mining. "At this stage, it is especially necessary to carry out high-precision detection of the coal seam geological conditions of the working face, construct a digital model, and carry out programmed intelligent mining based on this model; monitor the changes of coal seam geological conditions in real time, and predict and correct the mining behavior in advance; Through the high-efficiency machine learning algorithm, the fully mechanized mining system equipment has the ability of self-learning, through training to obtain the ability to solve problems, improve the level of intelligence and mining efficiency, etc., Wang Guofa said.

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