Common knowledge of daily operation of jaw crusher

Jaw crusher common crushing equipment in various ore production lines is usually used as rough crushing, mainly to crush large stones, so jaw crusher often causes crashes due to improper use. Therefore, we need to pay attention to the uniformity of the blanking, the hardness of the material and other factors during the operation.

In general, the main factors affecting the work of the jaw crusher are the bite angle and the number of revolutions. The bite angle is the angle between the moving jaw and the fixed jaw. According to the calculation, the maximum biting angle can reach 32 degrees. The actual use is less than 25 degrees, generally about 18-20 degrees. If the angle of the rod is too large, the ore in the crushing cavity will be squeezed upward, which will hurt people or damage other equipment. At the same time, the productivity will decrease as the angle of the rod increases (the crushing ratio increases). Adjusting the size of the ore outlet also changes the size of the rodent angle.

In actual life, the size of the discharge opening is adjusted according to the requirements of the discharge granularity. Therefore, it is reasonable to enlarge the ore outlet as much as possible while ensuring the granularity of the product. The size of the discharge port can be adjusted by adjusting the block. When adjusting the size of the discharge port, pay attention to the correlation between the crushing ratio and the productivity.

Within a certain range, increasing the number of revolutions of the eccentric shaft can increase the production capacity of the crusher, but it will also increase the power consumption of crushing the unit weight of ore. If the rotation speed is too large, the crushed ore will be discharged too late, which will cause blockage. Instead, it will reduce the production capacity and increase the power consumption. Therefore, the jaw crusher should have an optimal number of revolutions.

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