Atlas Copco 公司现在采用一种崭新方法,用来处理一向认为是困难的、费时间的和有危险的、破碎爆破后残留的大块。这种方法就是采用水炮。最近在西德幕尼黑举行的会议上,此法被认为既有效又安全,可以预期它对矿山和采石场的工作条件会有很大贡献。该设备叫 CRAC 200,全部机械化,已在二十个国家取得了专利。1979年末以来,这种方法在瑞典的许多现场做了试验,据报道这种方法已得到一些工会和管理部门 Atlas Copco now uses a brand new approach to handling chunks that have been considered difficult, time consuming and dangerous, remaining after a broken blast. This method is to use water cannons. At a recent meeting held in Munich, West Germany, the Act was considered as effective and safe and could be expected to make a significant contribution to the conditions of work in mines and quarries. The device, CRAC 200, is fully mechanized and has been patented in twenty countries. Since late 1979, this method has been tested on many sites in Sweden and it has been reported that this method has been supported by a number of unions and administrations