Progress and Development Trend of Key Technology and Equipment for Large-Scale Hoisting of Deep Wells in Metal Mines
In recent years,with the depletion of shallow mineral resources,underground metal mines in China have been developing towards large-scale mining of deep wells with a depth of over 1500 m and an annual output of over 10 million tons per year.The hoisting system is a crucial equipment for deep mining in mines,but the existing hoisting technology is unable to meet the needs of large-scale mining of deep wells in China.Therefore,the current research status of key theories and technical equipment in two main research directions of large-scale hoisting of deep wells were reviewed,namely friction hoisting and multi-rope winding hoisting,and their technical advantages and characteristics were analyzed.It is also proposed that the continuous hoisting,reducing the hoisting volume through the integrated mining-processing-filling,and reducing the weight proportion of the hoisting carrier are key research directions and development trends for addressing the hoisting needs of large-scale deep mining in the future.The study is in the hope of providing new solutions and methods for the hoisting system of large-scale mining of deep wells in metal mines.
Metal mineDeep wellLarge-scale hoistingContinuous liftingLightweight carrier