Jaw crusher is often due to improper use can cause crash phenomenon crusher, therefore, in the material for crushing. They must pay attention to pay attention to the uniformity of cutting, and there is the hardness of the material was suitable, if perfect, you can coupled with a process.
The main factors affecting the general jaw crusher work has nip angle and revolutions. Nip angle is the angle between the movable jaw and the fixed jaw between. According to calculate the maximum nip angle up to 32 degrees. The actual use is less than 25 degrees, usually about 18-20 degrees. Nip angle is too big, ore crushing chamber upward extrusion, resulting in injury or damage to other equipment, and with the engagement angle increases (crushing ratio increase) productivity. Adjust the size of discharge port, also change the size of the nip angle. In real life, according to the requirements of discharge size to adjust the size of discharge opening. Therefore, to ensure product granularity request, try to discharge mine mouth amplification is reasonable. Pai mine mouth size can be adjusted by adjusting the block, when adjusting the size of discharge port to pay attention to the broken relationship between the ratio and productivity.
Within a certain range, increasing the number of revolutions of the eccentric shaft, the production capacity of the crusher can be increased, but also increases the weight of the ore crushing unit power consumption. Speed too big, the crushing chamber has been crushed ore too late to discharge, and generate clogging, but to make lower production capacity, power consumption increases, and therefore, there should be a jaw crusher optimum number of revolutions.
Eccentric jaw crusher, rod, movable jaw plate, shaft and liner wear are the main components, lubrication and replacement needs constant attention.