An impact crusher is a type of heavy equipment that uses a striking force to break materials into smaller pieces. It is typically used for crushing various types of ores, rocks, and other construction materials. The machine operates by feeding the material into a rotating rotor, which then accelerates the material and throws it against a stationary surface, causing it to break into smaller fragments. Impact crushers are commonly used in industries such as mining, quarrying, and recycling, and are often used to produce a final product with a specific size or shape. They come in various sizes and models, ranging from small machines that can be easily transported to larger machines that are used in large-scale operations.
Impact crusher is a new, highly efficient crushing equipment. Its characteristics include small volume, simple structure, large crushing ratio (up to 40), low energy consumption, large production capacity, uniform particle size, and selective crushing effect, making it a very promising device. However, its biggest drawback is that the board hammer and counterattack plate are particularly prone to wear, especially when crushing hard ore, leading to more serious wear, thus requiring frequent replacement. Currently, the emergence of a number of wear-resistant materials has been applied in some metallic ore concentration plants.
The crushing process of impact crushing machine starts with the material entering the counter-clockwise rotation of the rotor from the mine mouth through the chain curtain. The material then undergoes the second impact by the board hammer. Part of the material still flies to the first counter board at high speed, while another part of the material (mostly small) flies to the second counter board to be crushed. In this process, some material undergoes multiple rounds of crushing, and finally, the material that reaches the required particle size is discharged from the crushing machinery.
In the production line, impact crusher is often used as a secondary crushing equipment. It can crush various materials with a compressive strength of not more than 350MPa, such as coarse, medium, and fine materials such as granite, limestone, concrete, etc. The finished product has a uniform particle size and is suitable for the construction of various large, medium, and small projects. As a secondary crushing equipment, impact crusher is often used in conjunction with jaw crushers and other crushers in the production line, which can effectively improve the overall efficiency of the entire production line. Moreover, with the continuous development of technology, wear-resistant materials have been widely used in impact crusher production, effectively reducing the frequency of replacement of vulnerable parts and prolonging the service life of the equipment.
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