There is a great similarity in the appearance of hammer crusher and
impact crusher, but there is a big difference in structure, because they belong to different crushing equipment, and there is a great difference in function.
1. The direction of action of the hammer/hammer is different
In summary, inside the impact crusher, the rotor runs clockwise, and the plate hammer faces the material from bottom to top, while the hammer crusher hits and crushes in the direction where the material falls.
Second, the difference of crushing chambers
The crushing cavity of the impact crusher is relatively large, and its feed port is relatively large and low, when the material is produced, the material is not only subjected to the impact of the hammer, but also has repeated impact between the material and the impact plate and the material and the material, so the crushing effect is more sufficient, and the production of large materials can be better realized, but for the hammer crusher, the crushing cavity is relatively small, and its sealing performance is better, so when processing materials, It can effectively solve the problems of dust pollution and ash leakage in the crushing space, and has good environmental performance;
Third, the wearing parts are worn differently
Whether it is for the
impact crusher or for the hammer crusher, the hammer and the hammer head are its main wear-resistant parts, for the impact crusher, the wear of the hammer mainly appears on the side facing the material, the metal utilization rate of the hammer can reach 45%-48%, and for the hammer crusher, the hammer head is in a hanging state, the wear occurs on the top, front, rear and side, compared with the hammer, the hammer wear is more serious, and the metal utilization rate is about 35%;
Fourth, the discharge adjustment method is different
These two kinds of crushing equipment can realize the adjustment of the size of the finished particles, for the
impact crusher, there is no grate screen in the lower part, and the adjustment of the size of the product particles is mainly controlled by adjusting the rotor speed or the diameter of the rotor, adjusting the size of the opening of the distributor, and adjusting the gap of the grinding chamber, while for the hammer crusher, the adjustment of the size of the finished particles can be controlled by adjusting the size of the gap of the sieve plate, according to this situation, The impact crusher can more effectively deal with materials with large water content and avoid clogging;
Fifth, the rotor link is different
In the inside of the impact crusher, the plate hammer and the rotor are rigidly linked, that is, the plate hammer is fixedly installed on the rotor, and the inertia of the whole rotor can be fully used to impact the material when crushing, which has great speed and kinetic energy, while the hammer head of the hammer crusher is a single crushing of the material (the hammer head is in a suspended state), and the speed and kinetic energy are limited;
The above content mainly introduces the structural characteristics of the impact crusher and the hammer crusher, and the analysis of this problem is mainly from the different crushing cavities, the different directions of action of the hammer / hammer head, the different wear of wearing parts, the different ways of discharging adjustment and the different links of the rotor, from the analysis of these aspects, it can be seen that the impact crusher is more suitable for crushing large pieces of materials with high water content, and hammer crushing is more suitable for the production of small pieces of materials.
