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宜春钽铌矿为露天矿平窿溜井运输系统。溜井深280米,溜井底部装2090×1000毫米指状闸门,装载4米~3侧卸式矿车。在试生产过程中溜井出现跑矿和堵矿的问题。本文结合有关溜井放矿的试验研究资料,分析矿压变化和跑矿原因,并介绍对闸门的改进。 (一)原始资料的变化对闸门设计所提的原始数据,主要来自地质报告。而实际上,矿石自采场运到溜井口,再经280米高的溜井到达井底,使得矿块减小,粉矿量增
Yichun tantalum niobium ore for the open pit smooth hole pass well transport system. Sliding wells 280 meters deep, slides at the bottom of 2090 × 1000 mm finger-shaped gate, loading 4 m ~ 3 side dump truck. In the trial production process appears to run mine and block ore mining problems. Based on the experimental research data about ore slide in the ore slide, the paper analyzes the reason of the change of mine pressure and the reason of running mine and introduces the improvement of the sluice. (A) Changes in the original data The original data provided by the gate design are mainly from geological reports. In fact, the ore from the mining field transported to the slip-well head, and then by the 280-meter-high slip well to reach the bottom of the well, making the mine to reduce the amount of fines