Research on the layout and optimization of the raw coal crushing system during the transition period of Baorixile Open-pit Coal Mine

During the mining process, the Baorixile Open-pit Coal Mine is facing a turning stage. The original crushing and transportation system is gradually disconnected from the production focus, resulting in a decline in transportation efficiency and an increase in operating costs. This paper takes the mine as the research object, systematically analyzes the current situation and existing problems of the raw coal crushing system, proposes two schemes of centralized layout and decentralized layout, and conducts a comparative study from multiple dimensions such as technical impact, economic benefits and land acquisition constraints. The results show that the centralized layout scheme has significant advantages in reducing transportation conflicts, lowering the growth rate of transportation distance and controlling the total investment cost, and is more in line with the production demands during the transition period of the mining area. Meanwhile, in response to the potential risks of land acquisition, a backup optimization plan is designed to enhance the adaptability and implementability of the system. The research results can provide theoretical references and practical guidance for the planning and optimization of the crushing system in large open-pit coal mines during the process of turning to mining.