关键词: 露天矿, 季节性剥离, 半连续工艺, 半固定破碎站, 移设步距

Abstract: In order to optimize the relocation parameters of No. 3 raw coal semi fixed crushing station in Shengli West No. 2 open-pit coal mine, the development of stope and waste dump engineering positions in each year is deduced through the preparation of the mining schedule, and then the appropriate relocation time node of No. 3 crushing station is analyzed and determined. Two methods of relocation cost compensation and weighted cost minimization are proposed to determine the economic and reasonable relocation step of No. 3 crushing station. The indexes such as raw coal resources, raw coal truck transportation distance, belt transportation distance and service life of the crushing station in the mining block are calculated and determined when the No. 3 crushing station is moved at different distances, and the reasonable moving distance of the No. 3 crushing station is calculated and determined. The research results show that the relocation time point of No. 3 crushing station is before April 2026, and the relocation path is to retreat along the layout direction of the belt transportation system at the east side of the stope, with a relocation distance of 1200 m. At this time, the relocation cost is compensated, the weighted cost is minimal, and the economic effect is good.