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现阶段在破磨理论、破磨设备和工艺流程方面有很大发展,破磨功指数理论日趋完善,在美国、加拿大、日本等一些国家得到应用,并取得良好的经济效果。破磨功指数理论的中心意思是:破碎物料时所需要的输入功与颗粒破碎时产生的裂缝长度成正比,对于相似形状的颗粒,裂缝的长度相当于表面积的平方根分之一,新生成的裂缝长度正比于。其基本公式如下:
At this stage, great progress has been made in crushing theory, crushing equipment and process flow. The theory of crushing index is getting more and more perfect. It has been applied in some countries such as the United States, Canada and Japan and achieved good economic results. The central meaning of the broken work index theory is that the input work required to break the material is proportional to the length of the crack generated when the particle is broken. For similar shaped particles, the length of the crack corresponds to one square root of the surface area. Crack length is proportional to. The basic formula is as follows: