研制概况随着露天采矿工业的发展,国外大型采矿设备被广泛应用。通过生产实践证明,这些大型设备不仅效率高,能改进开采工艺,而且单位产量运营成本低,经济效果好。我国矿山生产、科研和设备制造部门学习了国外的实践经验,一致认为,要发展露天采矿工业,必须发展与之相适应的大型矿用设 Development Overview With the development of open-pit mining industry, large-scale foreign mining equipment is widely used. Production practice has proved that these large-scale equipment not only have high efficiency and can improve the mining process, but also have low unit operating cost and good economic effect. China’s mine production, research and equipment manufacturing sector to learn from foreign practical experience, agreed that the development of opencast mining industry, we must develop compatible with the large mining set