An Overview of the Crushing Theory Development

Trust and approval from the customers determine whether an enterprise can subsist. So how can we win more customers, turn new customers into regular ones, and win the trust and approval from customers and broad insiders? First of all, the quality should be good enough, the efficiency high enough, the operation assured enough and the service sound enough. The customers will continuously pour in if you can achieve all of the above. The concept that the customer is God embodies itself fully in the modern society.

Crushing theory refers to the basic theory guiding the structure design of jaw crushers. The theory mainly focuses on the research on the factors which affect the energy consumption during the process of stone crushing, and determines the power when crushing material by external force. When the material is being crushed, first of all, the material cracks along the most vulnerable fracture surface where natural tissue deficiency exists, such as natural fracture, the bonding point of minerals, etc. The number of vulnerable parts will fall off after the first crushing. With the constant crushing process, vulnerable points and surfaces will gradually disappear; with the reduction of material granularity, the material become harder and harder. Hence, when crushing material with smaller particle size, the energy consumption is larger. That’s the reason why mining industry praises “more crushing and less grinding” in recent years.

Due to the complexity of crushing process, many factors account for the energy consumption, such as structural physical property, the shape, size, ambient temperature and crushing pattern. Therefore, the current crushing theory has certain limitations in that they cannot explain the essence of crushing completely. The research on the power dissipation of crushing may be traced back to thousands of years ago. Whereas, it is after the world’s first industrial revolution that it develops into a large-scaled social behavior and ascends...