Basic conception of intelligent open-pit mine construction

3) Intelligent discharge equipment. As shown in Figure 8, the application of wireless remote control bulldozer in open-pit soil discharge operation is studied, and the full hydraulic bulldozer is operated unmanned in remote control mode. By using the global positioning system (GPS) and the sensors installed on the construction machinery to grasp the position of the bulldozer itself, the status of the shovel and the robot arm and the ground conditions in real time, the operation indication data is transmitted to the control box equipped with the construction machinery, and the construction can be confirmed by the measurement system while the construction is carried out.

4) Intelligent perforation blasting operation. As shown in Figure 9, the intelligent three-dimensional design system for open-pit mine blasting engineering is developed by using geographic information system, virtual reality, geostatistics and other methods, combined with rock blasting theory and blasting technology, to realize blasting parameter design, blasting process simulation and blasting effect prediction and analysis. The application of GPS, strapdown inertial navigation system and other technologies to achieve accurate positioning of drilling equipment, and real-time drilling position and depth verification, to achieve the intelligent and accurate operation of drilling rig.

5) Crusher (station) intelligent. As shown in Figure 10, the image recognition of material lumpiness, vibration sensing during crushing process, automatic control and adjustment of electrical appliances and other technologies are used to judge the shape and lumpiness of materials through real-time image processing, build a classification standard to distribute materials and statistically analyze the proportion of different lumpiness. Based on the real-time monitoring and judgment of the lumpiness of the material and the vibration frequency and amplitude of the crushing process, the feedback blasting effect is analyzed through the lumpiness. On the other hand, the feed speed, the crushing roll steering and the rotational speed are intelligently adjusted to achieve efficient operation.

6) Real-time intelligent diagnosis of equipment failure. The technology of high-speed synchronous acquisition and long-distance transmission of parameter signals is studied. Based on embedded technology, real-time analysis of massive data is studied to realize local real-time analysis of mechanical and electrical equipment faults. The feature extraction and quantitative intelligent diagnosis technology of equipment weak fault are discussed to overcome the over-dependence of equipment fault diagnosis on professionals. This paper discusses the remote centralized monitoring and diagnosis technology of electromechanical equipment to realize information sharing and multi-point access.

3.4 Intelligent system IV: Intelligent system for open pit production planning and project management

Based on the integrated logic relationship planning of production and construction, the intelligent system of open-pit mine production planning and project management mainly realizes the intelligent design of piercing, mining, loading, transportation and discharge links, deduction and analysis of local operation processes, refinement and quantification of key points in operation links, standardization of construction standards, automatic accounting of production costs and automatic performance assessment. The intelligent control of mine construction quality can realize the dynamic simulation of mining process, the interactive analysis and optimization of mining design and construction, and the automatic decision-making and construction of each process link under the optimal production target, and finally achieve the purpose of intelligent decision-making.

On the basis of intelligent equipment, combined with comprehensive scheduling optimization to achieve the optimal automatic decision-making of all process links under the optimal production objectives, and at the same time to achieve the intelligence of auxiliary production links, that is, to build a comprehensive intelligent supervision and decision-making platform of production process system (or called the open-pit whole system (man-machine environmental management) intelligent decision-making platform). According to the production objectives determined in time and stage (optimization objectives such as the lowest cost, maximum overall production capacity, etc.), apply the Internet of Things + to calculate the real-time spatial location, running track, operation status, intact condition of a single device, as well as various economic and technical indicators, etc., comprehensive scheduling optimization. The sub-objective optimization operation of the main process systems of perforation, blasting, mining, transportation and discharge is realized under the overall optimal goal. Accurate positioning, exchange and optimal matching between each device; Complete main information push at any time (ranking of key equipment performance, failure, performance assessment, etc.); Gradually extended to the intelligence of auxiliary production links: later cover the drainage, road maintenance, power supply maintenance and other auxiliary operating equipment.