Impact crusher is a kind of crushing machine, which has a wide development future. Every country around the world is concerned much about the crushing theory and design. Nowadays, the future development trends are in the following aspects:
1. Large-scale
The current mining machinery and crushing machine are developed in large scale orientation. It has been found that large scale crushing machine is economic in foundation investment and power consumption, so impact crusher is manufacturing in large size.
2. High Speed
The rotor kinetic energy is proportional to the rotation speed. So increase rotation speed is equal to increase rotor kinetic energy, thus enhancing crushing ratio and improving production capacity. At the same, it can decrease the hammer weight under the same power situation.
3. Reduce the abrasion of wear parts
Plate hammer and impacting plate are the main wear parts of impact crusher. Especially the plate hammer, it is easy to wear, and needs to be replaced regularly, which will influence the production and waste working time. Therefore, people pay more attention to develop in new wearable materials, so as to improve the hammer shape such as changing the cross section of hammer into symmetry form for exchanging face.
4. Improve feeding method and device
There are many factories apply re-screening to separate qualified products grain in advance, and design the feeding base in a certain angle to make the materials enter into the most appropriate location in the chamber to improve working efficiency.