The relationship between the output of the crusher and the motor
In the process of the crusher, the motor drives the eccentric sleeve to rotate through the transmission device. The moving cone rotates and swings under the action of the eccentric shaft sleeve. The static cone was crushed by multiple squeezing and impacts. When moving away from the section, the material that has been crushed to the required size will fall under its own gravity and be discharged from the bottom. The number of swings of the crushing cone; the length of the parallel crushing zone; the size of the meshing angle determines the output of the crusher .
1. Swing time of broken mine cone
The number of swings of the crushing cone is one of the key factors affecting the capacity of the crusher.
Due to the meshing angle of the crushing cavity and the limitation of the parallel discharge area, the crushed ore is discharged along the slope mainly by gravity and vibration. When the rotation of the main shaft increases, the ore is easy to discharge, but the rotation speed is too high, which is not conducive to the discharge of the ore, and sometimes causes acceleration and cannot be produced. Therefore, the number of swings of the broken wall has a certain limiting effect on the improvement of production capacity.
2. The length of the parallel crushing zone
Parallel crushing area is the area where the crusher ensures uniform particle size. The crushing capacity is related to the thickness of the material layer in the parallel area, and the thickness of the material layer is also directly related to the size of the ore outlet. The increase of the length of the parallel zone is conducive to the control of particle size, but the discharge capacity is relatively reduced; the reduction of the length of the parallel zone is conducive to the discharge of ore, but the particle size of the crushed ore is difficult to guarantee.
At the same time, because the productivity of the crusher is mainly related to the nature of the ore, the performance of the machine, the specifications and operating conditions of the crusher, and the configuration of the crusher in the production process. Therefore, other conditions remain unchanged. In this case, changing the operating conditions (adjusting the size of the crusher's outlet) will change the productivity of the crusher.
3. The size of the meshing angle
The angle between the mortar rolling wall and the crushing wall of the -shaped crusher is called the meshing angle. The engagement angle is usually 22-23°, the larger is 27°.
The shape of the crushing cavity from the feed port to the discharge port is affected by the bite angle and the height of the crusher. The relative change of the cavity volume of the crusher has a certain impact on the crushing efficiency.
In theory, if the meshing angle is too large, the ore will easily slip in the crushing cavity, thereby reducing production capacity and increasing the wear and power consumption of the liner. If the engagement angle is too small, the crushing cavity will be too small to hold the amount of ore. The relative reduction will affect the output, while increasing the manufacturing cost of the equipment and the height of the machine.
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