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Jaw Crusher in China

Author:liming Post Date:2013-10-31

Jaw Crusher Introduction:

Jaw crusher is used to reduce the large material to small piece. jaw crusher can be used together with mine-selecting equipments and gravel processing equipments as well as used independently.

There are two typs of jaw crusher: coarse jaw crusher and fine jaw crusher.jaw crusher can be used to process roadbed stone, railway soil sediments and construction aggregate.

Jaw crusher features high crushing ratio, uniformly final product, simple structure, stable operation, easy maintenance and economical operating cost.

Jaw Crusher Usage Scope:

The jaw crusher is mainly used for medium-grained variety of ores and bulk materials, crushing, widely used in mining, metallurgy, building materials, road, railway, water conservancy and stone industry. The maximum compressive strength of the material to be broken 320MPa.

Jaw Crusher Characteristics:

High ratio of crushing; Even final size; Simple structure; Reliable working condition; Easy maintenance; Low operating cost.

Jaw Crusher Common Sense:

The jaw crusher is often due to improper use caused the crash phenomenon crusher to be crushed when the material, we must pay attention to pay attention to the uniformity of the material under, there is the hardness of the material was suitable, if perfect, canplus one step.

The main factors that generally affect the jaw crusher nip angle and the number of revolutions. Nip angle is moving Hubei and the angle between the fixed jaw. According to the calculation of the maximum nip angle up to 32 degrees. The actual use are less than 25 degrees, typically about 18-20 degrees. Nip angle is too large, make up the ore crushing cavity extrusion, resulting in injuries or damage to other equipment, at the same time as the nip angle increases (broken than increase) decrease in productivity. Adjust the size of the port of discharge, and also change the size of the nip angle. In real life, according to the row of ore particle size to adjust the size of the discharge mouth. Therefore, to ensure that the product size requirements, try to Pai mine mouth amplification is reasonable. Pai mine mouth size can be adjusted by adjusting the block to adjust the size of the port of discharge, pay attention to the broken relationship between the ratio and productivity.

Within a certain range, an increase of the number of revolutions of the eccentric shaft, the production capacity of the crusher can be improved, but also increases the power consumption of the crusher unit weight of ore. The speed is too large, the time to discharge causes the crushing chamber has been crushed ore to produce clogging, but the production capacity to reduce, increase in power consumption, therefore, jaw crusher should be an optimum number of revolutions.

Jaw crusher eccentric shafts, connecting rods, movable jaw plate, shaft and liner wear parts, lubrication and replacement needs constant attention.

Jaw Crusher Working Principle:

Motor through the belt so that the rotation of the eccentric shaft, the up and down movement of the vertical rod that is, when the vertical link up, driven by two brackets gradually stretched flat bracket to force the movable jaw to the fixed jaw forward, crushing chamber (iecomposed of fixed jaw plate and moving jaw space) in the ore being squeezed, splitting, fold flexor and broken. Vertical link-down movement, toggle plate and movable jaw plate, by the force of the springs and tie rods to the back at the port of discharge increase, the ore is broken thus discharged. Visible jaw crusher is intermittently broken ore. The eccentric shaft of a turn each half cycle for crushing and subsequent half cycle for the row of ore. So it is compared with other continuous crushing machinery, power consumption greater mechanical efficiency is lower.