Impact crusher installation and commissioning
Impact crusher is a crusher that uses impact energy to crush materials. When the machine is working, driven by the motor, the rotor rotates at a high speed. When the material enters into the impact zone of the plate, it collides with the plate hammer on the rotor and is broken. Then it is thrown again on the counterattack device to crush again, and then it rebounds from the counterattack. Return to the hammer area and break it again. This process is repeated. The material enters one, two, three from large to small, and the counter-attack cavity is repeatedly broken. Until the material is broken to the required size, it is discharged from the discharge port.
Impact crusher is widely used in hydropower, highways, artificial gravel, crushing and other industries, counterattack crusher can handle side length of 500mm, compressive strength of 350MPa, but a variety of coarse, medium and fine materials broken. The big ones have to pass the prescribed value. The discharge particle size is adjusted by the user according to the need to adjust the hammer head and the counterattack plate to achieve the gap between the entire components.
Impact crusher working environment
The single-rotor impact crusher has the advantages of simple structure, large crushing ratio, low energy consumption, high output, light weight, and cubic structure after the crushing. It can be used for beneficiation, chemical, cement, construction, refractories, ceramics, glass, etc. The industrial sector is used to crush and crush all kinds of medium hardness materials such as: limestone, clinker, slag, coke, coal, etc. Compared with the hammer crusher, the impact crusher of this series has a larger crushing ratio and can fully utilize the high-speed impact energy of the entire rotor. However, because the hammer of the impact crusher is easy to wear, it is also limited in the application of hard material crushing. Counterattack is usually used to crush, smash or crush limestone, coal, calcium carbide, quartz, dolomite, sulfide iron ore Stone, gypsum and chemical raw materials, such as brittle materials below the hard.
Impact crusher working principle:
The stone material falls directly from the upper part of the machine into a high-speed rotating turntable. Under the action of high-speed centrifugal force, another part of the flying stones around the turntable in the form of an umbrella produces high-speed collisions and high-density comminution. After the stone strikes each other, it will A vortex motion is generated between the turntable and the casing, resulting in multiple blows, friction, and smashing, and is discharged through the lower portion. A closed-circuit multiple cycle is formed and controlled by the screening equipment to achieve the required particle size.
Impact crusher installation and commissioning:
Installation: Select the installation location according to the applicable scope of the machine, and ensure that there is enough space for inspection.
Debugging: 1. The rotor has been balanced before leaving the factory. The user generally does not need to perform the balance test. When replacing the hammer head and rotor parts, it should be balanced.
2. The host installation should be balanced. The spindle level error is less than 1mm/m. The main driven wheel is in the same plane. Adjust the elasticity of the belt and fix the motor.
3. Check that the mounting position of each component moves, deforms, tightens all bolts, and checks for good seals.
4. Check the wiring and fastening of the electrical box, adjust the time delay relay and overload protector, connect the circuit, test the motor steering, and select the appropriate size fuse.
5. Check whether the hydraulic system operation is reliable and there is no leakage.
6. Remove the foreign material in the impact crusher and move the rotor by hand to check for friction and impact.