陕西省金家河磷矿系一座年产原矿石20万吨,选精矿9.3万吨的采、选联合企业。矿山开采工程建成后,经过生产实践,在开拓运输系统中暴露出不少问题。为弥补这些问题,需对原系统进行改造,现就改造方案进行探讨。一、原开拓运输系统该矿区地形陡立,沟谷深切,属高山深谷区。矿床为泥盆纪浅海沉积磷块岩矿床,呈层状产出,层位稳定。由于折 The Jinjia River Phosphorus Mine in Shaanxi Province produces an annual output of 200,000 tons of ore and a combined mining and selection enterprise with 93,000 tons of concentrate. After the completion of the mining project, many problems were exposed in the development of the transportation system through the production practice. In order to make up for these problems, the original system needs to be reconstructed. First, the original development of the transport system The terrain is steep, deep valleys, is a deep valley. The deposit is a paleo-deposited phosphorite deposit in the Devonian, showing a layered output and stable horizon. Due to fold