资源开发与粉体的关系极为密切。例举了煤矿中的粉尘爆炸、金属矿和非金属矿由粉尘会产生硅肺病。从资源有效利用的角度看,采出的矿石,使其单体分离,首先要把矿石粉碎成非常细,因为在粗碎、中碎、磨矿的各阶段,都安装有合适的破碎装置和筛分装置、分级装置。得到的粉体经过各种选矿机械进行有 The relationship between resource development and powder is extremely close. Examples of dust explosions in coal mines, silicosis of the metal and nonmetal mine dusts. From the perspective of the effective use of resources, the ores extracted to separate the monomers must first be crushed to a very fine size because the crushing equipment is installed at each stage of the crushing, crushing and grinding and Screening device, grading device. The resulting powder after a variety of mineral processing machinery there