How to process and utilize river pebbles
River pebbles is a kind of natural stone, taken from the experience of millions of years ago after the crustal movement by the ancient riverbed uplift in the sand and gravel mountain, experiencing the impact of flash floods, running water handling process of constant extrusion, friction. In tens of thousands of years in the evolution of the process, they are full of waves and water movement, the gravel collision friction lost the irregular angles, and together with the sediment was buried in the ground silence for millions of years.
The main chemical composition of river pebbles is silica, followed by a small amount of iron oxide and traces 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 for silica colloidal pith, emerald with green minerals, etc.; As these pigment ions dissolved in silica hydrothermal fluid in different kinds and content, thus showing the intensity, depth of the changing colors, so that the river cobbles show black, white, yellow, red, dark green, greenish gray and other color systems. By the sea river near the river cobbles predominate, river cobbles gathered on the black sand particles, cobblestones should account for more than half of the volume, because of its wide distribution, more common, and beautiful appearance, so it has become an ideal choice for the courtyard, roads, building construction stone.
Cobblestone is a by-product of mining yellow sand, is a pure natural stone, the main component is silica, but also contains a small amount of iron oxide and trace elements and compounds such as manganese, copper, aluminum, etc., is widely used in construction and road construction and other industries, mainly including public buildings, courtyard buildings, paving, park rockery, bonsai filler material, cobblestone material, garden art and other advanced superstructure. Cobblestone is an auxiliary material for ceramics, precision casting, paper making, spray grinding, chemical industry, monocrystalline silicon and other fields. It also provides high quality materials for water purification, sewage treatment, electricity, gardening and other projects.
Cobblestone has high hardness, but the highest silicon content. Therefore, the crushing process of pebbles should be designed reasonably, while considering the investment cost of the crushing project, the production cost of the production line must be considered. The raw material is pebbles in the crushing operation, jaw, hammer, impact plate and other wear parts of the loss is very high. Therefore, the crushing process design, as far as possible, choose the principle of lamination of crushing equipment, in order to reduce the wear parts of the loss. Typical lamination equipment configuration is two-stage jaw or jaw plus cone process configuration.
If customers do not have high requirements for the grain size of the finished stone, they can use the two-stage jaw crusher program for production. This configuration is the lowest investment, the simplest maintenance program, the production cost is also the most economical of all programs. However, the disadvantage of this program is that the grain size of the stone material is relatively poor, and the proportion of needle and flake material is high. The stone is not very competitive in the market because high grade construction requires stone with excellent grain size. If the customer has higher requirements for the final stone granularity, another impact crusher can be configured for whole crushing, which forms a three-stage crushing process configuration. The specific process configuration needs to be analyzed according to the actual situation on site, welcome to visit and exchange. Click on the website customer service immediately consulting, 24 hours online.
