River Pebble 2020-01-03 16:06:09

River pebble

River pebble is a kind of pure natural stone. It is taken from the gravel mountain produced by the ancient river bed uplift after crustal movement over tens of millions of years ago. It has been extruded and rubbed during the impact of torrential floods and flowing water. The main chemical composition of river pebble is silicon dioxide, followed by a small amount of iron oxide and trace elements such as manganese, copper, aluminum, and magnesium. They have different pigments, such as red for iron, blue for copper, purple for manganese, yellow translucent for silica colloidal pith, emerald containing green minerals, etc .; because these pigment ions dissolve into the dioxide The types and contents of the hydrothermal fluids are different, so they show a variety of shades, shades, and colors, making the river pebbles black, white, yellow, red, dark green, cyan and other colors. Most of the river pebbles are near the Haihe River. Black sand grains accumulate on the river pebbles. Cobblestone should occupy more than half of the volume. Because it is widely distributed, it is relatively common and has a beautiful appearance. select.


Name: River Pebble

River pebble: a natural stone

Taken from: in the gravel hills of the ancient river bed uplift

Classification: river pebble, rain flower stone, dry sticky stone, spray stone

River pebble processing technology

River pebble processing is divided into three stages: coarse crushing of jaw crusher, medium fine crushing of impact crusher or cone crusher and sand shaping of sand making machine.

The primary crushing of river pebble crushing is to feed the natural river pebble raw material to the jaw crusher through a vibrating feeder. Large pieces of river pebble are evenly fed by the vibrating feeder through the silo, and then conveyed to the jaw crusher for coarse crushing. The coarsely crushed river pebble is screened by a vibrating screen and then conveyed by a belt conveyor to an impact crusher or Cone crusher performs fine crushing.

Broken river pebble

The materials crushed by the jaw crusher can be treated in two ways according to the actual production situation: one is first stored in the transfer pile, and then the material is divided by the transfer pile; the second is directly transferred to the medium and fine crushing equipment ( The best river pebble crusher is a cone crusher). This is also the reason why some production lines have high production and operation costs. First of all, due to the design of the river pebble crusher production line, if the output of the primary crushing is higher than the throughput capacity of the secondary crushing, and there is no intermediate stockpile in the middle, a material blocking phenomenon will occur, which will cause unnecessary downtime maintenance. Secondly, the use of medium and fine crushers is part of the design. In the design of the river pebble crusher, an impact crusher is used, which causes the wear parts to be consumed too quickly and the replacement frequency is high, which directly affects the production cost.

River Pebble Broken River Pebble Shaping

After being crushed by the cone crusher, part of the river pebble can reach the particle size of the finished sand. Most of the grain types and sizes can not meet the needs of high-quality engineering construction. Crushing and shaping, and sand washing the qualified finished sand to reduce the dust content in the product and increase the added value of the product.

Washed sand products

The material sent to the sand washer is washed by the sand washer and then transferred by a belt conveyor to the storage pile as part of the final product.

River Pebble Sand Making Machine

River pebble sand making machine (pebble sand making machine) is also called river pebble sand making machine, cobblestone sand making machine. River pebble has high hardness. The machined sand produced by river pebble has the characteristics of good gradation and high strength, but the high hardness of river pebble makes the cost of mechanically producing river pebble sand greatly increased. There are such disadvantages. The traditional rod mill mechanism has low sand output and more fine sand. The hammer sander has been eliminated by many manufacturers due to its excessive mechanical loss. SBM machinery combines years of production experience with river pebble sand making equipment. We recommend the following two types of purlin-free vertical sanders to customers.

Working principle of vertical shaft impact sand making machine:

The stone falls directly into the high-speed rotating turntable from the upper part of the machine. Under the action of high-speed centrifugal force, the target that is shunted around the turntable in an umbrella manner produces high-speed impact and high-density crushing. In addition, a vortex motion is formed between the turntable and the casing, which causes multiple strikes, frictions, and crushes, and is discharged directly from the lower part. Unique 5-channel material distribution tray, forming multiple closed-loop cycles, free switching between stone-on-stone and stone-on-iron, controlled by the screening equipment to achieve the required particle size.

SBM vertical shaft sand making machine features:

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