Computer Simulation And Optimization Of Crusher Inner Liner Wear Resistance

Crusher, widely used in metallurgy, mining, coal, construction, building materials, environmental protection and chemical industries, is a very important machinery. With the rapid development of China’s metallurgical industry, ore extraction and ore species required will increase progressively. Therefore, the required number of broken machines will become more and more. As the crusher increased, the consumption of the liner is increasing correspondingly. The most vulnerable parts in crusher are the liner of the moving cone and fixed cone, which wears rapidly and has a short lifespan because of the squeezing and impact of the ore. This not only increased the consumption of the lining, but also decreased the operation efficiency of the crusher because of frequent replacement of wearing parts or spare parts supply non-timely. From the view point of economic benefit and equipment utilization, improving crushing efficiency and reduce the wearing amount of liner can greatly reduce production costs. Therefore, to design a longer wear liner is a very urgent matter. Prior to this, to conduct an analysis of lining wear is required. With the development of computer technology, software of simulation and optimization emerges, which makes it possible to simulate and optimize the wear resistance of crushers’liner in the lab, so this article’s topic has a very positive theoretical and practical significance on the broken ore production.This paper describes the classification of wearing species mainly through theoretical researches and concludes that the abrasion of cone crusher liner belongs to abrasive wear. Analyzing the crusher liner’s worn surface morphology and the change of subsurface structure through the actual working condition, this article reveals that the wear mechanism of cone crusher liner is that cutting wear, plastic deformation wear and fatigue co-exist. At the same time, on the condition of studying crusher liner kinematics, this paper discusses the ore crushing force of liner. Through the establishment of a mathematical model and using the MATLAB mathematical software on the mathematical model to calculate the parameter, liner wear life curves arc obtained, which will benefit a lot in improving the wear resistance of liner. On the other hand, the content ratio of the original cone crusher liner material is optimized and alloyed. Furthermore, from both economic and practical considerations, a more excellent wear liner material is obtained. According to that non-smooth surface wear has effect of drag reduction when moving, the smooth surface of the liner is designed into a corrugated surface, and that corrugated liner can reduce the abrasion of liner is concluded through calculating the equivalent stress of smooth and corrugated liner in ANSYS software. The wear resistance of lining is improved by optimizing the thickness and cone width of the liner in establishing mathematical model.