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美国矿业局双城研究所截煤工艺组正在研究截煤时减少产生初始粉尘的方法。矿业局当前对截齿特性的主要研究是要确定镐形截齿的磨损对产生初始呼吸性粉尘、能量和截割力的影响;研究增强截齿旋转性以提高刀齿寿命的镐形截齿最好的安装条件以及对扁形刀齿和镐形刀齿进行对比。截齿磨损影响装有镐形截齿的连续采煤机其采煤量占美国井下煤产量的一大半。有多种锥形截齿可供
The United States Department of Mines Shuangcheng Institute cut coal technology group is studying the cut coal to reduce the initial dust generation method. The current study of the pick characteristics of the Mines Bureau is to determine the effect of pick-shaped pick wear on the initial generation of respirable dust, energy and cutting force. The study of pick picks that enhance pick rotation and increase tool life The best installation conditions as well as the comparison of flat and helical cutters. The influence of pick wear on the continuous shearer with pick-shaped picks accounts for more than half of the underground coal production in the United States. There are a variety of tapered pick available