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从世界范围来看,60年代到70年代期间,由于对能源和矿物需求的增加,促进了露天开采和露天采矿设备的发展,露天开采强度越来越大,开采深度在逐渐增加,成本在不断上升。为适应竞争形势,迫使露天矿经营者和设备制造者必须从露天开采技术工艺及设备设计制造技术两个方面进行改进,以补偿由于成本增加而损失的经济效益。 一、60年代到70年代露采设备发展特点
From a global perspective, in the 1960s and 1970s, due to the increased demand for energy and minerals, the development of open-pit mining and open-pit mining equipment was promoted. As a result, the intensity of open-pit mining was increasing and the depth of exploitation was gradually increasing and costs were constantly rising rise. In order to adapt to the competitive situation, it is necessary to force the operators and equipment makers of open mines to make improvements from the aspects of open-pit technology and equipment design and manufacturing technology to compensate for the economic loss lost due to the increase of costs. First, 60 years to 70 years mining equipment development characteristics