Which stones can be used to make sand

At present, there are many kinds of stones that can be used to make sand in the mining industry, at least more than 200 kinds, basically, as long as the added value is not high, the water content below a certain range of ores can be used to make sand, including the tailings produced by mineral processing can also be used to make sand, so what kind of stones can be made into mechanical sand? What is the process of sand production line?

What are the common raw materials that can be used to produce the mechanism sand?

Raw materials that can be used for sand making: river pebbles, granite, basalt, etc.

  1. River pebbles, basalt, granite, limestone, lime stone, iron ore, etc.

These are ideal green building materials, hard texture, in the sand and gravel production line with can be used as raw materials for sand, stone, like basalt made of sand mixed in slow-setting soil, can make the concrete weight reduction, with heat insulation, sound insulation effect, is a good aggregate for high-rise building lightweight concrete, lime, granite and other crushed stone powder can also be reused, etc., these are a better alternative to natural sand.

  1. Sandstone, quartz sandstone, etc.

Sandstone is a sedimentary rock, mainly composed of quartz and feldspar, both strength and particle size, is one of the good raw materials for mechanism sand, in addition to its outdoor non-weathering, water does not melt, moisture, sound absorption and other advantages is one of the good building decoration materials.

  1. Tailings, slag, construction waste, etc.

These originally existed as industrial waste, but after reacquainting themselves with them, these are also a “treasure”, like the concrete blocks, stone blocks, masonry blocks, etc. in construction waste are often used to crush into sand and gravel aggregates for construction, highway and other industries, using them as raw materials to produce mechanism sand can save the investment cost of raw materials.

Raw materials that can be used as sand making: construction waste, waste brick and tile, crushed stone blocks, etc.

The following points should be noted when choosing the raw materials for mechanism sand.

  1. The compressive strength of raw materials used to produce mechanism sand should not be less than 80 MPa, and the materials should not be acidic or alkaline, and clean and hard raw materials should be used.
  2. In the selection of mines, avoid using mines with thick overburden layer, interlayer with more mud and poor quality such as rock layering into flakes.
  3. Choose the raw materials with exposed rock layer, if the top is covered with soil layer or contains weathering layer, it should be removed in time.

What is the process of mechanism sand production line? (Take river pebbles as an example)

As river pebbles itself is hard in texture, I introduce two production processes according to the size of production capacity.

  1. Above 200 tons per hour

Configuration equipment: vibrating feeder, jaw crusher, cone crusher, impact sand making machine, sand washing machine, vibrating screen, conveyor belt, etc.

For hard materials, “jaw crusher + cone crusher” is one of the high-efficiency collocation. The reason why we configure impact crusher is that the aggregate after cone crusher processing has more needle-like content, and impact crusher can make the material size uniform and crushing effect good.

River pebble sand production line: jaw crusher + cone crusher

River pebble sand production line: impact sand making machine

  1. Under 200 tons per hour capacity

Equipment: Feeder, jaw crusher, compound crusher (roller crusher, double-stage crusher), vibrating screen, conveyor belt

The jaw crusher is undoubtedly the primary crusher, the feed material within 1200mm can be crushed, and the jaw crusher can handle a wide range of materials, general ores and rocks can be crushed, the output between 1-2200 tons per hour can be, the user can choose according to the actual process.

Compound crusher, double-stage crusher, roller crusher are small crushing and sand making equipment, with small output design, generally below 100t/h, small power, power saving, and small space occupation, suitable for small stone plant.

River pebble sand production line: impact sand making machine + vibrating screen

River pebble sand production line: high efficiency fine crusher

With the increasing scarcity of natural sand resources, artificial sand is bound to replace natural sand, compared with natural sand mining difficulties, grade may not meet the requirements, mechanism sand is convenient to take materials, production process is scientific, are in line with the construction of sand, in the sand and gravel aggregate prices rise again and again and the market demand exceeds supply, the sales of mechanism sand will be better and better!

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