High hardness material made of sand, how to choose the stone crusher?
Natural sand resources are exhausted, but the raw materials of machine-made sand are rich, and many stones can be used as raw materials of machine-made sand. However, some stones, such as granite, quartzite, pebbles, etc., their hardness is very high, how should we choose the right crusher?
The stone sand needs to go through three stages, which are coarse crushing, medium crushing and sand making. The first stage, coarse crushing, mainly for particularly large rocks, can be 120-1200mm rock processing into 10-350mm small stones, the second stage, medium crushing, medium crushing will be coarse crushed stones further broken, generating about 3-60mm gravel, the third stage, sand making, The gravel is broken into sand with a particle size of about 0.55-5mm using sand making equipment.
1. Coarse crushing, this stage generally uses the jaw crusher, jaw crusher through the extrusion of the material to achieve the crushing of the material, this crusher has two crushing surfaces, after the material into the crushing chamber, you can squeeze the material. The characteristic of this crushing method is that the force gradually increases, and the force has a larger scope of action, so it is usually used as a coarse crushing.
2. Medium crusher, medium crusher will generally choose cone crusher, in the crushing process, the bulk material will be broken along the rock cracks or crystal defects and other stress concentration, coupled with the equipment body wear-resistant, so it is especially suitable for medium hardness and high hardness stone crushing processing, high crushing ratio, less wearing parts, low failure rate, stable work.
3. Sand making, impact crusher has a better crushing effect on ore, so it is often used for deep grinding sand making operations, and can be used in a multi-purpose machine, both to make sand and to shape the sand, using the crushing principle of stone beating stone to ensure that our finished products have good particle shape, rigorous structure, good sealing, less dust, less noise, and more environmentally friendly production process.
