有色设备

The study focuses on selecting the shaft hoisting system for a mining operation facing reduced resource reserves, with the shaft already constructed and partial equipment ordered, aiming to minimize investment. By comparing the original design (two independent hoisting systems with tower arrangement) against three optional solutions, i.e., single hoisting system with tower layout, single system with headframe layout, and single system utilizing pre-ordered equipment with tower layout. The study evaluates their technical parameters, investment costs, advantages, and disadvantages. Key findings reveal that while the original design involves the highest investment, it benefits from ready-to-use equipment, minimal retrofitting, sufficient hoisting capacity to reliably meet production targets, and the lowest risk.Although single-system options (Options 1 and 2) reduce investment, they entail equipment cancellation (with penalty risks), shaft retrofitting, tight operational capacity, and elevated construction risks.Option 3, despite having the lowest investment, fails to meet demand due to inadequate hoisting capacity.Considering reliability, production stability, and long-term costs, the original design is recommended as the optimal solution.