Development trend and path analysis of China's smart mine

On the whole, many foreign countries and mining companies have exceeded the scope of mechanization and automation in the construction of smart mines, and the green, safe, intelligent and efficient concept of smart mines has penetrated into all aspects of mine production.

1.2 Domestic smart mine development status

Over the past 40 years of reform and opening up, China's mining industry has provided a large number of basic raw materials for economic and social development, but there are also multiple pressures such as energy, resources and environment. As a traditional industry, mining industry needs to solve a series of problems such as extensive development methods, low production efficiency and energy utilization efficiency, and low resource utilization level as soon as possible. The state's continuous attention and support for the mining industry requires that we vigorously promote the coordinated transformation and development of digital green, especially the "promoting digital technology to enable the green transformation of the mining industry" as an important task for the transformation and upgrading of mining enterprises and to accelerate the development. In recent years, with the promotion of the "efficient, safe and environmental protection" of mine construction and mining activities, the penetration rate of digital design tools and the numerical control rate of key processes in many domestic mining enterprises have been improved to a certain extent, and the intelligent level of mines is also constantly improving, especially the popularity of big data, automatic control, Internet of things and 5G technology applications, so that the intelligent construction of some mines A breakthrough has been made.

China's mine intelligent construction has its own characteristics. For example, Shandong Gold Sanshandao Gold Mine excavates a new engine for mine development through new network, new technology and new application construction, creates a new model of mine construction and operation, and realizes industrial digitalization. The 5G intelligent mining industrial application of Yunnan Pulang Copper Mine has successfully landed in the mine, realizing the automation and intelligence of underground threading shovel, transportation and unloading operations, and successfully creating intelligent solutions for the whole process of small and unmanned production operations. Yuxi Dahongshan Iron Mine integrates more than 30 subsystems, integrated control of intelligent mining and beneficiation, data decision-making, energy control and safety management, 3D modeling of ground survey and mining production, unmanned shovel, remote centralized control of main production equipment and real-time dynamic adjustment of production parameters in mineral processing, automatic control and online monitoring of road spray dust removal on the ground. Zhejiang Puxin Mining has built a decision command and dispatch center and a three-dimensional geological twin model of mineral resources, as well as six systems such as mine cross-border mining early warning, online real-time monitoring of mine dust, real-time positioning and tracking of personnel and vehicles, all-round video surveillance, intelligent vehicle scheduling, and online detection of aggregate quality. The intelligent mine of Baowu Resources has been improved as a whole, and the unmanned and centralized indexes in 2022 have reached 60.2% and 54.2% respectively. The intelligent mineral processing system of Zhangzhuang Mine of Masteel has realized the intelligent operation of the whole process, which has increased the concentrate production capacity by more than 10%, and the intelligent filling system has realized the intelligent control and one-click filling of the whole filling process. Based on the whole process control of "ore flow", WISCO Daye Mine has built an intelligent management and control platform integrating mining, selection and charging. Aiming at shock wave damage in stope, power network technology has been introduced to establish intelligent decision-making and remote control system for mine ventilation, and technologies such as aerial photography, subsidence area monitoring points and three-dimensional reconstruction have been integrated. Xizang Yulong Copper Mine realizes intelligent truck scheduling, intelligent ore allocation, high-precision positioning of electric shovel, automatic hole layout of drilling rig, etc., as well as high-precision online grade detection of raw, fine and tail ore dressing and intelligent control of crushing and grinding. Through production, safety and environment energy monitoring platform and MES system, cost process control and comprehensive mobile application are realized. The West Mining Xitieshan Lead and zinc mine has carried out a complete architecture design from three aspects of mining, beneficiation and management, realized electric locomotive driverless, remote loading, mining data integration, intelligent ventilation, and centralized control of the whole process of beneficiation, grinding and flotation expert control system, realized automatic statistics and intelligent analysis of mine data, and fully realized process cost control. Tongmao Datang Tashan Coal Mine has carried out intelligent construction and transformation of 27 professional subsystems of 10 large systems covering mine production, such as mining, digging, machinery, transportation, communication, geological water control and ground washing, etc., and built an intelligent decision-making platform of mine cloud map. Through modern communication technology and control technology, remote, collaborative and automatic control of the whole process of safe production is realized. Luoyang Molybdenum Sandaozhuang open-pit mine adopts a new generation of Internet of Things, big data, artificial intelligence and other technologies, integrates UAV dynamic modeling, multi-metal multi-target ore allocation, intelligent scheduling of loading and unloading and intelligent analysis and management of production data, and builds a comprehensive new modern intelligent production control and decision system for open-pit mine.