一、风动碎石机在国内外使用概况近十几年来国外矿山二次破碎多已不采用爆破方法,而采用机械方法。目前大多采用风动碎石机和液压碎石机。风动碎石机具有结构简单,使用方便,故障少等优点。在我国,最早应用风动碎石机的是首钢龙 First, the use of pneumatic lithotripsy at home and abroad profile In the past decade or so more than two foreign mine crushing blasting methods have been used, and the use of mechanical methods. At present, most of the use of pneumatic lithotripsy and hydraulic crusher. Vibratory lithotripsy with simple structure, easy to use, less failure and so on. In our country, the earliest application of pneumatic stone breaker is Shouganglong