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在打眼爆破和山崖掘进开矿工作中,往往不可避免地要留下一些大矿石块,唯一的办法就是再破碎一次。瑞典阿塔拉斯·冈柯公司的专家用水来替代炸药作二次破碎,水的价格低廉,来源也较广,又不会危及环境安全。他们研制的 Kpak—200型破碎设备是由液压打眼机和固定在与打眼机身成直角之支架上的“水炮”组成的(见图)。为破碎大石块,首先要用钻眼机在岩上凿一个直径32～34公分、深80公分的炮眼,而后水炮的炮口对准炮眼口,再用泵吸水“上膛”,在一个专门的水筒中将水压提高到400个大气压。一
Blasting in the drilling and cliff excavation mining work, often inevitably leave some large ore blocks, the only way is to crush again. Experts from Sweden’s Attallas Gangko use water instead of explosives for secondary crushing. The price of water is low and its sources are also wider without endangering the environment. They developed Kpak-200 crushing equipment is composed of hydraulic eyebolt and the “water cannon” fixed on the frame at right angles to the eye-catching body (see photo). In order to crush boulders, we first drill a hole in the rock with a diameter of 32-34 cm and a depth of 80 cm. The muzzle of the muzzle is then aligned with the hole of the muzzle, and then the pump is sucked in with water to “load” The water pressure increases to 400 atm. one