Advantages of using impact crusher
Liming heavy industry impact crusher series adopts keyless connection, which makes the overall strength of the equipment high, easy to use, low maintenance rate, and the size of the finished product can be adjusted; The ideal feeding particle size of the material is 100-500mm, and various coarse, medium and fine materials (granite, limestone, concrete, etc.) whose compressive strength does not exceed 350MPa; so what are the advantages of the impact crusher?
Liming Heavy Industry will introduce the advantages of the impact crusher in detail:
1. It can effectively process materials with high moisture content and prevent the clogging of the crusher
When the water content of the material being processed is too high, the feed chute and impact plate of the impact crusher can be equipped with a heating device to prevent the material from sticking. The impact crusher does not need to be equipped with a bottom sieve plate to effectively prevent clogging. The hammer crusher cannot use heating to prevent the material from sticking, and must be equipped with a bottom sieve plate, which increases the possibility of clogging.
2. The impact crusher is suitable for both soft materials and very hard materials
The blow bar of the impact crusher is firmly fixed on the rotor with a mechanical clamping structure, and it has a large moment of inertia when it rotates with the rotor. Compared with the hammer crusher (the hammer head is in a suspended state), the rotor of the impact crusher has greater momentum, which is suitable for crushing harder materials, and at the same time consumes less energy.
3. It is convenient and flexible to adjust the discharge particle size, and the adjustment range is wide
The impact crusher can adjust the output particle size in various ways, such as adjusting the rotor speed, adjusting the gap between the impact plate and the grinding chamber, etc. The gap adjustment can be adjusted mechanically or hydraulically, and the hydraulic adjustment system can be used to easily adjust the gap through the local operation button or the travel control system. However, the adjustment of the output particle size of the hammer crusher can only be realized by replacing the bottom sieve plate.
4. The wear of the wearing parts is smaller than that of the hammer crusher, and the metal utilization rate is high
The wear of the blow bar of the impact crusher only occurs on the side facing the material. When the rotor speed is normal, the feed material will fall to the surface (strike surface) of the blow bar, and the back and side of the blow bar will not be worn. Even the side facing the material suffers very little wear. And the bottom grinding rod is also easy to replace. The metal utilization rate of ultrafine mill board hammer can be as high as 45% - 48%. The hammer head of the hammer crusher is in a hanging state, and the wear occurs on the upper, front, rear and side surfaces. Compared with the blow bar, the hammer head wears more seriously, and the metal utilization rate of the hammer head is only about 25%. Also the rotor body itself may be subject to wear. The sieve plate at the bottom of the hammer crusher is seriously affected by wear, and all the grilles must be replaced, and the work of replacing the sieve plate is also relatively complicated.
5. Easy replacement of spare parts and corresponding reduction in maintenance costs
There are only 6 blow bars installed on the rotor of the impact crusher, and special tools are provided to easily replace the blow bars. It only takes one shift to replace a set of blow bars. The replacement of the grinding rod in the bottom grinding chamber only takes tens of minutes, which greatly reduces the time and cost of overhaul and maintenance. However, there are as many as more than 100 hammer heads in a hammer crusher, and it takes a lot of time and manpower to replace a set of hammer heads, and the repair and maintenance costs are relatively high. It is also troublesome to replace the bottom sieve plate.
