在毛主席无产阶级革命路线指引下,在无产阶级文化大革命和批林批孔运动的推动下,河北铜矿广大职工,以阶级斗争为纲,坚持党的基本路线,认真贯彻“鞍钢宪法”,大打矿山之仗,大搞技术革新,于1972年首先实现了平巷机械化作业线,并在全国推广。即由PYT—2型双机液压凿岩台车——华—I型装岩机——斗式转载列车——电机车组成的作业线。矿山机械化作业线是高速度、高工效、低成本实现快速掘进的有效途径之一。这种机械化作业线经过几年来的生产实践证明,效果很好,在生产中发挥了很大作用,为年年超额完成国家计划奠定了基 Guided by Chairman Mao’s proletarian revolutionary line and under the impetus of the Great Proletarian Cultural Revolution and the “Campaign to Punch the Hole and Bore”, all the workers and staff of Hebei Copper Mine took the class struggle as the key link, adhered to the party’s basic line, conscientiously implemented the Anshan Iron and Steel Constitution, Fighting mines battle, engage in technological innovation, in 1972, the first realization of Lane mechanization operations line, and in the country to promote. That is PYT-2-type dual hydraulic rock drill trolley - Hua-I type rock loader - bucket-loaded trains - electric locomotive line consisting of operations. Mine mechanized operation line is one of the effective ways to realize fast excavation with high speed, high work efficiency and low cost. After several years of production practice, this kind of mechanized operation line has proved to be very effective and has played a significant role in the production and laid the foundation for exceeding the national plan every year