River pebble is a kind of natural stone, taken from the sand and stone mountain produced by the uplift of the ancient river bed after the crustal movement tens of thousands of years ago, and has experienced the continuous extrusion and friction in the process of mountain flood impact and water transport. The main chemical composition of river pebbles is silica, followed by a small amount of iron oxide and trace amounts of manganese, copper, aluminum, magnesium and other elements and compounds. They themselves have different pigments, such as red for iron, blue for copper, purple for manganese, yellow translucent silica colloidal stone pulp, emerald color containing green minerals and so on; Due to the different types and contents of these pigment ions dissolved into the silica hydrothermal solution, they show a variety of colors, so that the river pebbles show black, white, yellow, red, dark green, bluish gray and other colors. Near the Haihe river pebbles are mostly gathered on the river pebbles, pebbles should account for more than half of the volume, because of its wide distribution, more common, and beautiful appearance, so it has become the ideal choice for courtyard, road, building construction stone.
The natural river egg ore is produced into river egg sand after a series of processing such as crushing, sand making and screening, and river egg sand is an important industrial mineral raw material. Widely used in the engineering field of water conservancy and hydropower, high-grade highways, expressways, high-speed railways, passenger dedicated lines, Bridges, airport runways, municipal engineering, high-rise building mechanism sand production and stone shaping. River pebble sand is also widely used as aggregate for concrete. River pebble resources are abundant, the collection cost is relatively low, and the application value is high.
The problem in the crushing process of river pebbles is that wear-resistant parts are easy to wear, because the silicon content of river pebbles is very high. Therefore, the crushing process must be carefully studied for the stone plant project using river pebbles as raw materials. Where customer conditions permit, it is recommended to use laminating equipment and multistage crushing solutions as much as possible. Jaw breakage and cone breakage can greatly reduce the wear cost of wear-resistant parts, and reduce the reverse material after screening, and increase the production capacity of the production line.
If the customer does not have high requirements for the grain type of the finished stone, the two-stage jaw breaking scheme can be used for production. This configuration is the lowest investment, maintenance and repair of the simplest scheme, the production cost is also the most economical of all schemes. However, the disadvantage of this scheme is that the grain shape of the stone is relatively poor, and the proportion of needle sheet materials is high, which leads to the competitiveness of this stone in the market is not high, because most high-grade buildings need stone with excellent grain shape.
For customers who require excellent particle shape of products and want to reduce production costs, it is recommended to use single-stage jaw crusher (such as jaw break + cone crusher) and impact crusher supporting process solutions. This configuration can make the main crushing work be completed by the head and the second break, and finally only by the counter break for integral crushing. This configuration can make the main crushing work completed by the head and the second break, and finally only by the counter break for integral crushing, such configuration process can greatly reduce the reverse material formed after screening.
Post time: Dec-23-2024