【摘要】 目前我国矿区铁路运营的机车绝大多数是蒸汽机车。但蒸汽机车在我国已停止生产 ,致使蒸汽机车的配件供应困难 ,检修周期长、费用高 ,而且蒸汽机车的牵引速度和重量难以提高 ,对环境污染大 ,已不适应矿山生产和国家铁路发展的要求 ,因此 ,对矿区铁路牵引机车换型更新已迫在眉睫。通过分析比较内燃机车和电力机车的特点和运营费用 ,认为矿区铁路机车换型应优先考虑内燃机更多还原

【Abstract】 Currently, locomotives running on railways in mining districts in China are mostly steam engines, the manufacturing of which, however, has been stopped in China, which has led to shortage of spare parts supply, long overhaul period and high repair cost of the steam engines. Being very difficult to enhance the traveling speed and hauling load and causing serious environmental pollution, steam engines no longer satisfy the requirements of mining production and the needs of the national railroad development. Therefore, model renewal of railway engines is pressing in mining districts. A comparison of features and operating costs between diesel engines and steam ones concluded that the former should be a priority for engine model renewal in mining districts.更多还原