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湖南省衡东县水泥厂生产水泥和石灰,每年石灰石需用量在四万吨左右,原来放炮爆破时石灰石飞扬,危及房屋和人身安全。为了解决这一问题,这个厂职工大胆革新,经过多次试验,采用土黑硝、炸药混装,用皮纸药引点火的办法,不仅石灰石飞扬范围不超过五十米,保证了厂区、民房以及人身的安全,而且爆破效率提高百分之三十至六十,每炮眼可开石灰石四至五立方米,爆破费用可大大降低。
Cement production in Hunan Province Hengdong Cement Plant and lime, the annual amount of limestone needs about 40,000 tons, the original lime blasting blasting blasting, endangering the housing and personal safety. In order to solve this problem, the factory workers bold innovation, after many tests, the use of soil black nitrate, explosives mixed with leather paper cited ignition method, not only limestone flying range of not more than 50 meters, to ensure that the plant, houses and Personal safety, and blasting efficiency increased by 30 to 60 per hole can open four to five cubic meters of limestone, blasting costs can be greatly reduced.