In the sand and stone factory, we can often see the impact crusher and hammer crusher, but it seems that more businesses choose the impact crusher, what is the reason?
1. Technical structure
Impact crusher and hammer crusher structure difference is still a certain difference. For the crushing chamber, the crushing chamber broken by counterattack is relatively large, and the feed port is also relatively large. When the material enters the crushing chamber of the counterattack from the feed port, the material is not only affected by the impact of the hammer, but also by the impact of the material and the counterattack plate and the material and the material, so the crushing effect is more sufficient, and the production of large materials can be better realized. In comparison, the hammer crusher crushing chamber is smaller, and the sealing performance is better than the impact crusher. Material crushing processing will produce less dust pollution, relatively will have the advantage of environmental protection.
2. Working principle
Impact crusher and hammer crusher crushing material has a large difference, this is due to the different plate hammer. In the interior of the counterattack crusher, hammer plate from down to up to meet the material for crushing materials, and will cast material to the top of the back plate, and the hammer crusher is blow broken down material falling direction, in the interior of the counterattack broken, rotor clockwise operation board hammer from down to up to meet the material, and in the interior of the hammer broken, the rotor anti-clockwise running, The hammer head strikes in the direction of falling material.
Counterattack breaking and hammer breaking these two kinds of crushing equipment can realize the adjustment of the particle size of the finished product. Impact crusher because its lower part does not have grate screen, the regulation of product particle size is mainly controlled by adjusting the rotor speed or rotor diameter, adjusting the size of distributor opening, adjusting the clearance of grinding chamber. For hammer crusher, the adjustment of the particle size of the finished product can be controlled by adjusting the size of the gap of the sieve plate. In this case, the impact crusher can more effectively deal with the material with larger water content and avoid blockage.
3. Process materials
Impact crusher because of its technical structure and working principle of the difference, not only can deal with soft materials, but also can deal with the hardness of the material, and the hammer crusher can only deal with the hardness of the material. Because there is no grate at the bottom of the impact crusher, the particle size of the product is determined by the gap between the impact plate and the hammer head, so when the water content of the material is too large, it can effectively avoid the phenomenon of blocking the grate when crushing wet materials. Hammer crusher because of the bottom grate factors, increase the possibility of blockage, so can not deal with high humidity of the material. In contrast, the impact crusher has a wider range of work.
4. Maintenance costs
When early stage is bought, the price that counterattack breaks generally wants to be higher than the price that hammer breaks. However, due to the impact crusher and hammer crusher structure and work differences, will lead to a certain difference in late maintenance.
Impact crusher plate hammer wear only in the face of the material side, impact crusher plate hammer metal utilization rate can be as high as 45% - 48%. At the same time, the rack part of the impact crusher is a three-split structure, only need to open the rear shell of the crusher, you can replace the plate hammer, impact plate, lining plate and other maintenance operations, and the impact crusher parts of the interchangeability is strong, less varieties of wearing parts, easy to spare parts procurement and management.
And hammer crusher hammer up to more than 100, replacing a set of hammer takes a lot of time and manpower, repair and maintenance costs are high. The hammered rotor, bottom sieve plate, and barrier may also be worn during operation, and the replacement is relatively complicated.
Through the above comparison, it can be learned that if the material hardness or soft material processed by sand and stone factory is more inclined to impact crusher, on the contrary, hammer crusher is selected, and at the same time, it can reduce the later operation cost of equipment and improve its economic benefit. In actual production, there will also be businessmen who choose hammer crusher because of different work, and the specific situation needs to communicate with the businessmen in detail.
