磁山铁矿职工们在增产节约运动中,学习和推广用石英砂代替炸药爆破取得了成功。今年按7个月计算,可节约炸药26.25吨,降低成本54100元。用石英砂代替炸药有许多优点。首先是方法简单,只要把石英砂加工成中粗砂子那 Magnesium iron ore workers in the campaign to increase production and conservation, learning and promoting the use of quartz sand instead of explosives blasting has been successful. Calculated according to 7 months this year, it can save 26.25 tons of explosives and reduce the cost of 54100 yuan. There are many advantages to replacing explosives with quartz sand. First of all, the method is simple, as long as the quartz sand processed into coarse sand that