What Are The Advantages Of Impact Crusher?

Impact crushers are equipment that pulverises materials using the principle of impact crushing. Within aggregate production lines, they are primarily employed for medium and fine crushing operations. They can readily process materials with a maximum edge length of 100-300mm. The discharge particle size is flexibly adjustable, accommodating diverse crushing requirements. The crushed material exhibits a cubic particle shape. Impact crushers find extensive application across industries including building materials, railways, motorways, energy, chemicals, cement, and metallurgy.

What Are The Advantages Of Impact Crusher?

Wide Material Adaptability

Impact crushers can process hard materials with compressive strengths not exceeding 350 MPa. During operation, impact plates are secured to the crusher rotor via mechanical clamping mechanisms. As the rotor rotates, significant rotational inertia is generated. Compared to traditional hammer crushers, impact crushers possess greater kinetic energy. This enables crushing of harder materials while consuming less energy. Suitable materials include: limestone, shale, coal gangue, dolomite, brick and tile fragments, gypsum, pyrite ore, calcium carbide, chemical raw materials, and other brittle materials below medium hardness.

Fine Crushing Capability and Wet Material Processing

Impact crushers can process materials with high moisture content, effectively preventing material blockages. Its wide range of applicable material hardness accommodates diverse crushing requirements. The feeder chute and impact plates may incorporate heating systems. When processing high-moisture materials, bottom screen plates are unnecessary; heating alone effectively prevents material adhesion. This equipment offers flexible output particle size adjustment. Controlling output size is straightforward by regulating rotor speed, impact plate settings, and grinding chamber clearance.

Flexible Adjustment of Discharge Particle Size

Compared to other crushers, the impact crusher employs multiple methods to regulate product particle size. It readily achieves particle size control by adjusting rotor speed, impact plates, or grinding chamber clearance. Common approaches involve modifying rotor speed or diameter. Increasing rotor speed or diameter extends crushing duration, thereby adjusting the discharge particle size of the final product. This simultaneously boosts output and enhances material crushing efficiency. The second method involves altering the finished product size by adjusting the distributor. Reducing the distributor opening increases material overflow supply flow, internally restricting the mutual collision movement of materials within the crushing chamber. This shortens the residence time of particles within the crushing chamber. Furthermore, the finished product size can be modified by adjusting the grinding chamber clearance.

Minimal wear on vulnerable components, high metal utilisation rate

Wear on impact crushers typically occurs only on the side facing the material. Provided the rotor speed is normal, feed material falls onto the striking surface of the impact plates. The rear and sides of the impact plates remain unaffected by wear. Even the material-facing surface experiences minimal abrasion. Replacement of the bottom grinding bars is exceptionally straightforward, facilitating subsequent maintenance and servicing.

Spare part replacement is straightforward, with low maintenance costs

The rotor of an impact crusher requires fitting only six impact plates. Replacing these plates using specialised tools is simple and efficient. A complete set of impact plates can be replaced within a single shift. Similarly, replacing the grinding bars in the bottom grinding chamber takes approximately ten minutes. This significantly reduces the time and associated costs associated with repairs and maintenance.

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