The crusher works in order to achieve the best crushing effect with less energy, and the crushing of the material in the crusher should be generated along the weaker molecular binding force such as natural crack, joint surface and layer inside. The crusher usually used is crushed by means of extrusion, shearing or grinding, and the above desired effect cannot be achieved. During the crushing process, a considerable part of its energy is converted into heat and lost. However, by using high-speed impact energy, the material is broken along its fragile surface in a free state, and a satisfactory effect can be obtained.
The impact crusher is a crushing machine that uses impact energy to break up materials. When the machine is working, the rotor rotates at a high speed under the driving of the motor. When the material enters the action area of ​​the hammer, it collides with the hammer on the rotor, and then is thrown to the counter-attack device to break again, and then from the counter-liner. The spring is returned to the action area of ​​the hammer and re-crushed. This process is repeated. The material is broken into the first, second and third, counter-attack chambers from large to small, until the material is crushed to the required particle size and discharged from the discharge port. Adjusting the gap between the counter frame and the rotor can achieve the purpose of changing the material discharge size and material shape.
Compared with the hammer crusher, the impact crusher has a larger crushing ratio and can more fully utilize the high-speed impact energy of the entire rotor. However, because the hammer of the impact crusher is extremely easy to wear, it is also limited in the application of hard material crushing. The impact crusher is usually used for coarse crushing, medium crushing or fine crushing of limestone, coal, calcium carbide, quartz, dolomite, and vulcanization. Brittle materials below medium hardness such as iron ore, gypsum and chemical raw materials.
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