Cone crusher crushing equipment as often, their broken product shape is the main indicator of the quality of production. In particular, some applications require a cone crusher product needle tabular grains to meet certain standards, so crushed product particle shape control is necessary.

Cone crusher is widely used in metallurgy, mining, water and other buildings, and played a key role in the respective production process. Broken main object machine for ore material, its particle shape (geometry of material particles) is the main indicator of the crushed product quality evaluation, usually divided into a cubic shape and flakiness.

Cone Crusher

Elongated particles in crushed product share of the mass fraction of the rate of the needle is broken product shape evaluate quantitative indicators. Needle rates affect the main factors include the type of ore crusher types, crushing stage, feed particle size, closed side discharge opening size (CSS), the amount of feed material and an eccentric shaft speed.

In the construction sector, the increase in concrete aggregate flakiness particle compressive strength will lead to overall decline in construction and increased construction process of cement consumption; similarly, in the asphalt mix, the particles will increase flakiness resulting in decreased overall density of the mixture and compressive and tensile strength. Thus, the rate of the needle for the crushed product quality plays an important role.

Then we control for the cone crusher product needle chip rate to explain:

When the material by cone crusher chamber, the needle with the extrusion rate of occurrence of breaking events and the rapid increase, to a certain extent and then gradually decline. With related researches found that material before entering the crusher, after screening or separation step size becomes more uniform particle size; after entering the crushing chamber, the material being squeezed crushing effect, flakiness particles began to appear, along with the more An increasing number of material particles squeezed broken, flakiness particles increased rapidly; further increase of extrusion crushing event, part of the material particles include particles including flakiness began to be 2 or more times compression.

In the latter stages of the crushing process, crushing chamber materials needle rates decline and return to the desired range. Seen in the cone crusher operation, squeezing crushing incident frequency increases, it helps to reduce the flakiness crushed product particles. Thus increasing the spindle speed can improve the quality of grain shape crushed product to a certain extent.

It can be seen, taken to raise the spindle speed, improved crusher structure parameters and increase the probability of the occurrence of an event of crushing chamber broken (repeated broken material number) and other measures, it is an effective way to improve the grain shape of the crushed product.