The factors influence the crushing effect of impact crusher

14 Jul,2020 UTC+8 Views:


The impact crusher is widely used in metallurgy, mining, building materials, transportation and other engineering technology fields. It can crush hard materials with compressive strength above 300MPa, and has the characteristics of large crushing ratio and good product granularity. So, what are the factors that affect the crushing effect of the impact crusher?

Rotor speed

Studying the rotation speed of the rotor can guide the impact crusher to choose the appropriate rotation speed when crushing materials of different particle sizes and materials, to prevent the materials from being excessively crushed, and also reduce energy consumption. Under the condition that other conditions remain unchanged, the rotor is rotated at three different speeds of 1000r/min, 700r/min and 400r/min, and the effect of rotation speed on the crushing force is analyzed.

Rotor inertia

The range of materials that can be crushed by the impact crusher is certain, which is largely related to the size of the rotor inertia of the type of crusher installed. Hongxing Heavy Industry believes that under the same rotor speed, the rotors with different rotational inertia The crushing power that can be provided is different, that is, the crushing capacity is different, which directly affects the performance of the crusher.

Influence of different angles of counterattack plates on crushing effect

The angle of the counterattack plates at all levels has a great influence on the effective crushing force generated when the stone hits the counterattack plate. The force perpendicular to the collision contact interface is generally called the effective crushing force, that is, the force that can cause the stone to break. The situation is that the stone can be perpendicular to the impact plate each time it collides with the impact plate, and at the same time, the impact plate with different angles has a greater impact on the impact and shear breaking of the material.