Attrition of Parts Reduces Service Life of Crushers

The pulverization is an indispensable technical process in the mineral processing. The task of the pulverization is to provide the raw materials for processing with a certain particle size, size distribution, adequate dissociation and unduly pulverization to make the next step of processing, handling and use become easy. The crushing operation (including crushing and grinding) is an essential link in the contemporary rapid development of industrial technology. In a variety of processing procedures of metals, non-metallic, chemical, mineral raw materials and construction materials, the crushing operations need to consume a lot of energy. Especially with the increase in the amount of low-grade ore mined and environmental need to deal with the increase in the amount of waste recycled energy, the energy consumption will also gradually increases. It is expected that the energy consumption which is used in crushing process may be up to 15%. With the development of the society and the continuous consumption of raw materials, the high-grade ore resources are depleted and the proportion of lean ore resource extraction increases.
 The crushing operation is the leader of the ore beneficiation and it is also the operation which has high energy consumption and high consumption of metallic materials. Therefore, the efficient, energy-conservation crushing machinery will play an increasingly important role. The liner is a kind of important wear part of the crusher. In the working process, the liner should withstand certain impact and wear in the course of the work. Material wear is a procedure in which the shape, size, structure and properties change due to the effect of the relative motion, the media, the temperature and the environment. The abrasive wear is a kind of attrition which is caused by the migration or falling off of the surface material due to the effect of the hard protuberance material in the friction process.
The attrition is caused by friction. It is a common phenomenon in the various fields of the national economy and daily life and it is an important factor to cause the loss of materials and energy. In the field of mining, building materials industry, electric power industry, machinery industry, agricultural machinery, defense industry, aviation and aerospace, friction is everywhere and the attrition is also everywhere. The wear is a widespread phenomenon, but its causes and manifestations are very complex. Therefore, we should research and analyse the using situation and the wear mechanism to create the best working condition of the crusher.
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