At present, in the face of production pressure caused by resource shortage, environmental pollution and safety accidents, a global mining digital transformation revolution is accelerating. According to statistics, there are nearly 20000 large-scale metal mines in China, of which only about 10% of the large-scale mines with high degree of modernization, technical equipment level and comprehensive utilization of resources are close to the level of developed mining countries. The equipment of other large-scale mines and small and medium-sized mines is still at the level of 1980s and 1990s, with low comprehensive utilization rate of resources, extensive management mode, safety and environmental problems The problem is outstanding. On the road of ensuring the sustainable supply of mineral resources, promoting energy conservation and emission reduction, and promoting the modernization of mining industry, how to use technology as the driving force for innovation and lead China to transform from a "mining power" to a "mining power"?

With the transformation of new and old kinetic energy and the continuous advancement of supply side structural reform, information and communication technology is changing with each passing day, and social development has entered a new era of intelligent development. In recent years, under the guidance of a series of major strategies and actions, such as the "network power" strategy, the national informatization development strategy, the big data strategy, the "Internet plus" action plan, and the "5G+ industrial Internet" 512 project, the intelligent construction in China's mining field has been continuously deepens, and the technical requirements for the development of high technology and high quality industry have been continuously upgraded.

As the leader of China's intelligent mines and the supplier of intelligent manufacturing system solutions for the Ministry of industry and information technology in 2020, China ENFI Engineering Technology Co., Ltd., relying on 67 years of rich engineering implementation experience and profound technical accumulation, has jointly carried out special research by academicians of the Chinese Academy of engineering, more than 100 doctoral researchers and multi professional engineering and technical personnel, and joined hands with the National Supercomputing Tianjin Center Beijing Engineering Research Center, China Mining Information Collaborative Innovation Center, has launched the "MIM +" digital integration solution for intelligent mines, realizing the deep integration of new generation information technology and industrial control technology, making it the "ENFI key" to promote the digital and intelligent transformation of the industry.

Who are the MIM families?

China ENFI's "MIM +" digital integrated solution for intelligent mine includes three main parts: MIM transparent, MIM digital and MIM twins.

Full information visualization can realize the digitization of top-level design of the project, make the construction and implementation units coordinate their work according to the unified standards, and cover the whole life cycle data flow of the project construction and operation and maintenance stages; The three-dimensional model, equipment and materials, data information, survey, design and construction management in the construction period and the real-time production control data, operation and maintenance data and enterprise management data in the operation and maintenance period are displayed.

The whole process digitization condenses the digital fusion communication technology (DFCT) of China ENFI intelligent mine, which is composed of "one system, one network and one platform".

"One system" digital fusion control system DFCs

DFCs can realize the production monitoring and all factor data acquisition and edge intelligent control of the whole production process of the mine through intelligent fusion control unit and edge computing terminal, multiple data intelligent acquisition unit, multiple data fusion and integrated base station.

"One network" multi data fusion network mdfn

Mdfn adopts industrial Internet data security penetration data stable transmission technology, and establishes a flexible, scalable, low-cost, multi-level, hierarchical and converged network in the mining area through a unified edge cloud collaborative industrial Internet solution. Taking the multi fusion network constructed by the integrated integration technology as the core, covering the whole mine production and business process, building the production information superhighway of the whole mine, effectively simplifying the network structure, improving the degree of digital integration, reducing the infrastructure investment and reducing the operation and maintenance costs.

"One platform" unified production control platform upcp

Upcp integrates stope, equipment, personnel, energy, security and environment systems into one platform for collaborative management and control through visualization of production control, intelligent information processing, and collaborative operation integration, which greatly improves the efficiency and efficiency of mine operation control.

The digital twin of operation cycle combines China ENFI's nearly 70 years of engineering design, engineering data and project practice experience, and carries three-dimensional modeling technology, system simulation technology, engineering simulation technology, virtualization technology, big data service technology, cloud computing technology, expert system technology and artificial intelligence technology to establish real-time data coupling and interactive interface between virtual system and physical system It can effectively provide intelligent and visual auxiliary decision-making such as scheme evaluation, dynamic optimization and emergency disposal for mine production and operation and process site.

How effective is the "MIM" family?

"MIM +" digital integrated solution can realize the whole factor modeling of mine, establish the diversified corresponding relationship between the data platform of physical entity object and digital virtual model based on material flow, energy flow, information flow, value flow and business flow, realize the whole process of data acquisition, digital transmission, knowledge mining, information feedback, raw material procurement, logistics transportation and warehousing Management, production process, market forecast and product sales are the whole process of digital integration of "human, machine, material, law and environment". Through multi-level digital collaborative computing such as edge computing, cloud computing, intelligent management and terminal application, it provides enterprises with digital integrated solution of Intelligent Collaborative Management and control based on MIM knowledge.

More importantly, the total factor data platform also encapsulates national standards, industry standards, industrial knowledge, mathematical models and management modes. On this basis, it develops management applications such as "process housekeeper", "equipment housekeeper", "energy housekeeper", "environmental housekeeper" and "safety housekeeper", so as to realize the intelligent solution of "housekeeper integration" for enterprises and open up the digital design delivery digital platform Through the whole life cycle service process of digital production and operation and maintenance, we can break through the core technology of intelligent manufacturing, change the ecological chain mode and operation management mode of nonferrous metals industry, and provide enterprises with information and intelligent comprehensive digital overall solutions, so as to greatly improve the operation efficiency of enterprises, enhance the intelligent construction level of intrinsically safe metal mines, and promote the number of traditional industries The transformation and intelligent upgrading of the word, improve the quality of production and economic benefits.

Industry classic created by MIM

How wonderful?

At present, ENFI has provided digital and intelligent top-level design and digital integrated solutions for many foreign mines. Among them, the general contracting project of intelligent mine of CSFC Chambishi copper mine has become the "national big data industry development pilot demonstration project in 2020" by virtue of its leading and benchmarking nature, and has attracted the attention of the industry.

Chambishi copper mine is the first nonferrous metal mine successfully operated overseas in China, which is known as a landmark project of China Africa cooperation. Since taking over Chambishi Copper Mine in 1998, China Nonferrous Metals Group has long-term close cooperation with ENFI in mining, beneficiation, metallurgy and other projects, creating the banner of "going out" of China nonferrous metals industry. Facing the needs of digital transformation and intelligent upgrading of the mining industry, China Nonferrous Metals Group entrusted China Enfei to implement the project of "mine informatization automation fusion control system". China ENFI conducted in-depth research and Analysis on the underground mining of Chambishi copper mine from the perspective of industrial digital transformation, and clarified the key to intelligent upgrading of production system, transportation system and production auxiliary system - digital fusion control.

In the main west orebody of Chambishi, the digital fusion technology DFCT of intelligent mine was applied as a whole for the first time. Focusing on the intelligent management and control of power supply and distribution, the framework of integrated network was adopted to design the overall mine network. The three demand levels of mining production system, mine transportation system and production auxiliary system were fully considered. Iterative innovation and integration innovation were carried out from three aspects of technology, management and concept The renewal and transformation of automation and information system and the application of intelligent automatic mining and transportation system realize the process control and data collection of the whole production factor from the monitoring end of the field level to the enterprise management level, and solve the problem of isolated mine monitoring information. At the same time, its open architecture design provides the function of integrating customer business level information and digital information, and integrates multiple subsystems to form a mine monitoring information system The large system of mine production control effectively improves the mine production efficiency and system maintenance efficiency, establishes the digital control and service platform of the whole production process, and improves the coordination between the systems.

Chambishi Zhuxi automation and electric energy management and control transformation project mainly upgrades the electric energy management and control system, underground drainage system, underground sludge drainage system, on-line monitoring of fixed equipment, video monitoring system, fire alarm of drainage pump station, production scheduling and information management system of main west ore body, so as to create the whole process digitization (MIM) Digital), through the digital fusion control system DFCs and multiple data fusion network mdfn, comprehensively improve the control and information management level, build the unified platform for production management and control of the whole mine, and reduce the production cost. Since 2017, the project has implemented the upgrading of digitalization, informatization and automation technology. At present, it has realized the personnel positioning system and communication network covering the whole mine, the large-scale and intelligent mining operation equipment, the automation and unattended of auxiliary production system, such as drainage system, the informatization of production management system, and the distribution of reduced operators to the southeast ore body. At present, the labor efficiency per capita has increased from 2 tons per person per day in the past to nearly 4.81 tons per person per day, the labor productivity has increased by 1.8 times, and the comprehensive total cost per ton of copper has decreased by 13.4% compared with that before the transformation. A number of equipment shift indicators have set new records in Zambia, and the main indicators have reached the advanced level of similar mines in Africa.

The southeast orebody project of Chambishi copper mine has a total investment of 830 million US dollars, with a design mining and dressing scale of 10000 tons / day, which is the largest investment project of China in Africa. As the general contractor of its automation and information fusion system, ENFI of China carries out the design and integrated application of new underground digital and automatic mining fusion control, builds "MIM +" digital integrated intelligent mine, deeply integrates information technology and mining technology, and realizes system fusion control (DFCs), network fusion (mdfn) and data fusion between production control systems of mines Upcp, all the systems of on-site production achieve real-time monitoring, and the main systems realize remote operation and automatic operation.

The automation and digitization of equipment and process in Southeast orebody working layer has been fully implemented. The project adopts advanced mine digital modeling software to realize the comprehensive digital operation of geological modeling, mining design, medium depth hole design, survey acceptance and plan preparation. The 3D development of mining design makes geology, mining, survey and plan preparation enter the "expressway". Intelligent equipment is used in driving and supporting operations, and intelligent and digital operation of relevant process production is fully realized. The stope is transported by automatic scraper and unmanned truck, and the automatic mining operation is realized by automine and Optimine system. The practical application shows that the running speed of scraper is increased by more than 20%. In the underground, the main production areas are fully covered by integrated control network, in which the transportation, lifting, water supply, power supply, drainage, ventilation and other auxiliary production systems realize automatic control and intelligent operation. In the surface production management and control center, the production data of the whole mine is analyzed, managed and scheduled by the unified production management and control platform, which lays the foundation for the subsequent establishment of the whole mine big data service platform, MIM twins, 3D platform and MIM transparent platform.

Chambishi copper mine is benchmarking to the world's best mines with high digitization, high production efficiency and low production cost, so as to realize safe and efficient production. This is the vision of Chambishi Copper Mine's "digital benchmarking" mine, and also the long cherished wish of China ENFI to promote the digital transformation of traditional mining industry.

Carry on the past and open up the future. China ENFI will continue to promote technology upgrading and platform building, improve enterprise production efficiency, decision-making ability and management level, strive to build a new format of industry digital transformation, promote the international competitiveness of "non-ferrous + digital", and assume the national responsibility of high-quality development to promote the transformation from a mining power to a mining power.