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铜录山铜铁矿是露天、井下同时开采的金属矿山。选矿厂日处理量为4000吨,近年井下供矿量约占一半。坑内采矿场原用ZYQ—14型气动装运机37台出矿,由于设备利用率低,每个采场最少要摆2～3台出矿设备。为妥善解决上述矛盾,寻找一种理想的更新换代设备成了当务之急。我矿与南昌通用机械厂,马鞍山矿山研究院共同参照进口设备,选用国产零部件研制了WJD—0.76电动铲运机。该机主要参数和技术性能与美国瓦格纳公司生产的EHST—1A型电动铲运机相似。样机运来时,由于它比ZYQ—14型气动装运机长得多,体积大,又拖了一根380伏的电缆,很不安全,人们顾虑重重。
Tonglushan copper and iron ore is open-pit, underground mining of metal mines at the same time. Concentrator daily handling capacity of 4,000 tons, underground mine ore supply in recent years accounted for about half. There are 37 ZYQ-14 type pneumatic carriers in the pit originally used for mining operations. Due to the low utilization rate of the equipment, at least 2 ~ 3 ore-handling equipments should be set for each stope. In order to properly solve the above contradiction, it is imperative to find an ideal replacement device. I mine and Nanchang General Machinery Factory, Ma On Shan Mining Research Institute jointly refer to imported equipment, the selection of domestic components developed WJD-0.76 electric scraper. The aircraft main parameters and technical performance and the United States Wagner produced EHST-1A electric scraper similar. When the prototype arrived, it was unsafe because it was much longer and bulky than the ZYQ-14 airlift, dragging a 380-volt cable.