Impact Crusher wear and tear problems

The emergence of impact crushers has made a big step forward in the stone processing process. At present, impact crushers can not only meet the construction requirements of various projects in terms of quantity and quality, but also adapt to the requirements of mechanized construction. But then the good machine in long-term working condition, coupled with other external factors, will make the machine has a certain degree of wear and tear, making the work efficiency reduced.

So which parts are easy to wear?

The wearing parts of impact crusher usually include plate hammer, impact liner, housing liner and rotor body guard plate. The wear time of the plate hammer is the shortest, and the wear cost is also higher. Therefore, reducing the wear of the plate hammer is the key to solving the wear of impact crushers.

And what causes the wear of these parts?

1. First of all, the influence of line speed. The linear speed is the operating parameter that has the greatest influence on the wear of the plate hammer. The reason is: the size of the linear speed directly affects the size of the impact energy exerted by the plate hammer on the material, the size of the crushing ratio, and plays a decisive role in the size of the product. In addition, excessive linear speed may also lead to a sharp increase in plate hammer wear, which is caused by the high linear speed, the material can not enter the impact zone (or into the depth is very small), and the plate hammer end of the violent wear. Foreign research data show that: the wear of the plate hammer and the linear velocity of the primary to secondary proportional relationship.

2. The second is the influence of processing capacity and discharge gap. The processing capacity of the impact crusher also has a certain influence on the wear of the plate hammer. When the processing capacity increases, the product size becomes coarser, the crushing ratio decreases, and the pure wear per unit of the plate hammer decreases, likewise, changing the gap size of the discharge can also change the coarseness of the product size to some extent, so it has a certain influence on the plate hammer wear.

3. And the impact of the nature of the material to be crushed. The impact of the material to be crushed on the plate hammer wear includes: the nature of the material, the size of the feed a particle size and water content and other factors, and the biggest impact of the nature of the material, corresponding to different crushing materials, the unit pure wear of the plate hammer varies greatly.

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