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运煤通道是拉斗铲倒堆工艺煤炭运输的咽喉,针对厚覆盖层拉斗铲工艺中间沟开拓特点,建立地面破碎站和中间沟运煤通道移设步距模型及计算方法.结果表明:破碎站移设主要受作业空间限制,中间沟运输通道移设受经济效益和储煤仓容量的限制,移设步距的大小决定着移设工程量,工程量和系统失效时间决定了储煤仓的大小,同时,储煤仓作为提高系统可靠性的一种途径,对运煤通道的移设起着重要的作用,保证了运煤通道移设时矿山的连续供煤,黑岱沟露天煤矿破碎站的最佳移设时间为41个月,运煤通道的移设时间为8.36个月,当储煤仓容量为40万t时,运煤通道移设和系统故障对矿山生产影响较小.
The coal passage is the throat of dragline dumping technology coal transportation. According to the characteristics of middle groove of dragline shovel in thick overburden, this paper establishes the model and calculation method of moving step distance of coal passage in ground crushing station and intermediate groove. The results show that: The crushing station relocation is mainly limited by the work space. The middle canal transport channel is relocated by the economic benefits and the capacity of the coal storage. The size of the displacement step determines the amount of the transfer project. The project volume and the system failure time determine the coal storage At the same time, as a way to improve the reliability of the system, coal bunker plays an important role in the relocation of the coal transportation channel and ensures the continuous coal supply for the coal transportation channel when it is relocated. Heidigou open air The optimal relocation time of coal crushing plant is 41 months and the transport time of coal passage is 8.36 months. When the coal storage capacity is 400,000 t, the influence of coal passage and system failure on the mine production small.