Analysis of Advantages and Disadvantages of Common Crushers Based on Impact
The crushing methods of the two crushers are all broken. The difference is that in the impact crusher, the material receives more repeated impacts and breaks, and has the characteristics of high frequency impact. Both crushers have large crushing ratios and are suitable for crushing brittle materials.
A, the crushing ratio is large. Impact crushers (referred to as impact crushers and hammer crushers) can achieve a crushing ratio of more than 50, while jaw crushers, cone crushers and roller crushers are difficult to exceed 20. Thus, in the case where single-stage crushing is required, such as limestone crushing in the cement industry, the use of impact crushers is very common.
B, product particles are good. Under the action of impact, the crushed material tends to break along its most fragile layer. This selective crushing method has a higher probability that the particles have a cubic shape, so the needle-like percentage content of the impact crusher product can be lower than 10%, and the percentage of needle-like percentage of crusher products such as jaw crusher, cone crusher and roller crusher will be higher than 15%. Thus, where cubic particles are required. For example, the anti-skid pavement of high-grade roads usually uses impact crushers as the ultimate equipment to produce concrete aggregates.
However, the working principle of the crushing methods of these two crushers also has certain defects. Since the impact crusher uses the impact principle to crush the material, its striking parts, such as hammers, hammers, counterattacks, etc., wear very quickly in use. This defect limits the scope of application of the impact crusher for a considerable period of time. Can only be used for the crushing of medium and hard materials. However, with the application of new wear-resistant materials, hard rock impact crushers have been introduced, breaking this limitation.
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