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洛兹多尔硫矿床的剥离岩石和矿石与中等硬度的石灰石相类似,需要进行松动爆破。在1958—1960年期间,矿山仅使用БУ-20-2М型钢绳冲击或钻机穿凿孔深8—15米的炮孔,其生产能力平均不超过18—22米/班。提高钢绳冲击式钻机生产能力是没有多大潜力可挖的。尽管各部件有所改进,以及采用新的锻钎法,使钻机生产指标有所改善,但其生产能力仍没有显著提高。 1961—1962年,洛兹多尔露天
Peeling rocks and ores in the Lotzdorferite deposit are similar to those of moderately hard limestone and require loose blasting. During 1958-1960, the mines used only БУ-20-2М steel cable impact or drill holes drilled 8-15 meters deep, with an average production capacity of no more than 18-22 meters per class. There is not much potential to improve the productivity of a steel cord impact drill. Despite the improvements in the components and the adoption of the new forging method, the productivity of drilling rigs has not been significantly improved. From 1961 to 1962, Lotz was open-air