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国内外对不合格大块矿岩的二次破碎的研究结果和实际经验证明,研制单次冲击功达25000～30000焦耳以上的大功率风动液压冲击式碎石器很有发展前途。卡拉干达工业学院、北部采选公司和德聂伯罗彼特罗夫斯克矿业学院共同研制了固定式和自行式碎石机。1982～1983年有两种自行式碎石机在北部采选公司安诺夫斯克露天矿进行了初步的工业试验。БПГ-30Э碎石机用ЭО-3322А型挖掘机的底盘,取消了铲杆,换上转换托架,借以将碎石器
The research results and practical experience of the secondary crushing of unqualified large ore rock at home and abroad show that it is very promising to develop a high-power pneumatic impact stone crusher with a single impact energy of 25,000 ~ 30,000 Joules. Karaganda Industrial Institute, the northern mining company and Dnepropetrovsk Mining Institute co-developed a fixed and self-propelled lithotripsy. Two types of self-propelled lithotripsy machines were used in the preliminary industrial tests in the northern mining company, the Anovsky open pit, from 1982 to 1983. БПГ-30Э lithotripsy machine with ЭО-3322А excavator chassis, remove the shovel, put the conversion bracket, in order to gravel