Introduction of river pebbles
River pebble is a kind of purely natural stone, which is taken from the sand and gravel mountains produced by the uplift of the ancient riverbed after the crustal movement tens of thousands of years ago and formed under the condition of long-term impact, compression and friction. Its main chemical composition is silicon dioxide, followed by a small amount of iron oxide and trace elements and compounds such as manganese, copper, aluminum, magnesium, and so on with the maximum compressive strength can reach more than 300 MPa and the comprehensive hardness is more than 7 degrees Mohs. River pebble has good compression resistance, wear resistance and corrosion resistance. Therefore, it is an ideal raw material for machine-made sand and building materials. So how do river pebbles crush?
Design of river pebble crushing scheme
Nile Machinery Company has developed a set of simple and reasonable river pebble crushing production line according to the nature of river pebbles. The production line is mainly composed of vibrating feeder, jaw crusher, cone crusher, circular vibrating screen, sand making machine, sand washing machine, belt conveyor and other equipment. The specific process is as follows:
1. Coarse crushing
Because the block size of raw material river pebbles are relatively large, it is necessary to carry out primary crushing operation first. The vibrating feeder evenly feeds the raw river pebbles into the jaw crusher for the first crushing operation, which process called coarse crushing.
2. Finely crushed
According to the actual production situation, the river pebbles crushed by jaw crusher can be processed in two ways: one is to store it in the transfer pile, and then separated by the transfer material pile, the other is directly transported to the fine crushing equipment for medium and fine crushing(the better river pebble fine crusher is cone crusher).
It should be noted that in the river pebble stone crushing production line, if the output of primary crushing is higher than the passing capacity of secondary crushing, and there is no transfer pile in the middle, material blocking will occur, which will cause unnecessary downtime and maintenance. The second is the use of medium and fine crushers. In some designs, the impact crusher is used to crush river pebbles. When the impact crusher is used to crush high-hardness stones, it is easy to cause problems such as rapid loss of vulnerable parts and high replacement frequency of components, which directly affects the production cost. So it is more appropriate to use cone crusher to finely crush river pebbles.
3. Screening
The river pebbles crushed by the cone crusher are screened and processed by a circular vibrating screen. The larger particles are returned to the cone crusher for crushing again, the medium-sized materials are sent to the sand making machine for shaping and the qualified materials are used as the final product after being cleaned by the sand washer.
4. Shaping
After being crushed by cone crusher, most of the river pebbles cannot meet the needs of high-quality engineering construction either in particle shape or in size. Therefore, it is necessary to use sand making machine to shape them and wash qualified finished sand to reduce dust content in products and improve added value of products.
5. Sand washing
After being sent to the sand washing machine and cleaned, the materials are transported to the storage pile by the belt conveyor as part of the final product, thus completing the crushing operation of river pebbles.
Advantages of river pebble crushing scheme
1. This set of river pebble crushing scheme has a high degree of automation. Only need the staff to control the switch and other manual operations are not required, which saves a lot of time.
2. The crushing ratio and processing capacity is large, and even if the water content of the river pebbles is relatively high, there will be no blockage failure.
3. Good energy saving and consumption reduction effect. The energy consumption of the whole crushing process has been reduced by more than 30%, which saves a lot of costs for users.
4. The river pebbles crushing plants has a long service life and low failure probability during construction, which reduces maintenance costs to a certain extent.
5. The equipment is equipped with a multi-effect dust removal device, which effectively improves the construction environment of the river pebble crushing plant.
6. Affordable price, small investment, quick return, which makes customers get a higher return after two or three months of use.
Nile Machinery can provide reasonable river pebble crushing production solutions for river pebble investors, and help river pebble factories to improve the benefits, which worth buying by river pebble investors.
Purchase phone: 008615137168510
