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The advantages of impact crusher compared with impact crushers are that in mining operations, in order to achieve good crushing effect with less energy, the crushing of materials in the crusher should follow its natural cracks, joint surfaces and In the layer, the molecular binding force is weaker. The commonly used crusher, which uses extrusion, shearing or grinding for crushing, cannot achieve the above ideal effect. During the crushing process, a considerable part of its energy is lost as heat. However, by using high-speed impact energy to break the material along its fragile surface in a free state, a relatively satisfactory effect can be obtained.
There are still problems with impact crushers. Among the more prominent are the faster wear of the blow bar (especially when crushing hard materials), and the wider distribution of product particle size (for some industrial sectors, there are more undesirable or unnecessary fine particles in the product). However, the obstacles that really hinder the further promotion and use of impact crushers are that the design and manufacturing department still lacks a systematic and complete understanding of the design and inspection of impact crushers, especially the targeted design. The relationship between the structure and performance of the equipment lacks theoretical calculation basis, and in some places it is also due to improper use.
Impact crusher, due to its high energy utilization rate, uniform crushing particle size and small impact vibration, impact crusher has been widely used in coal preparation, metal mine beneficiation and cement production. Generally, it can be divided into single roller, double roller and multi-roller. The adjustment method of the discharge port and the insurance method of the machine are two important aspects to evaluate the performance of the roller crusher. The general impact crusher adopts a mechanical method to adjust the discharge port, the spring is used as the safety device and the shear pin is used as the safety device, which is safe and reliable, and at the same time strengthens the crushing process, so as to achieve uniform product particle size. http://www.drobilkainc.com/en