With the development of the construction industry, the demand for machine-made sand has increased significantly, so what are the raw materials for sand making? There are at least 200 kinds of machine-made sand that can be used to make machine-made sand. Generally, stones with high hardness (such as river pebbles, granite, quartz stone, basalt, etc.) and stones with medium hardness (such as coal gangue, limestone, etc.) are used as raw materials. At the same time, weathered stones, construction waste (concrete blocks), mine tailings, etc. are also suitable for processing into machine-made sand. Basically, as long as the added value is not high and the ore with a water content below a certain range can be used for sand making.
1. River pebbles, basalt, granite, limestone, bluestone, iron ore, etc.
These are ideal green building materials with hard texture. They can be used as raw materials for sand and gravel in sand and gravel production lines. Sand made of basalt is mixed with retarded soil, which can reduce the weight of concrete and has the functions of heat insulation and sound insulation. As a result, it is a good aggregate for lightweight concrete in high-rise buildings, and the stone powder produced after crushing lime, granite, etc. can be reused, etc. These are in line with the standards for making sand from natural sand and can be used directly as construction sand.
2. Sandstone, quartz sandstone, etc.
Sandstone is a kind of sedimentary rock, mainly composed of quartz and feldspar. It is also widely used in sandstone production lines and can solve the problem of stone powder supply. Compared with quartz sandstone, it is still a better raw material for artificial sand making. In terms of strength and particle size, it can meet the standards of natural sand and gravel sand making. In addition, its advantages of not being weathered outdoors, not melting in water, moisture-proof, and sound-absorbing are one of the good building decoration materials.
3. Tailings, slag, construction waste, etc.
These originally existed as industrial waste, but after re-recognition of them, they are also a “treasure”. For example, concrete blocks, crushed stones, bricks and tiles in construction waste are often used to crush them into sand and gravel Aggregate is used in construction, highway and other industries. Using them as raw materials to produce machine-made sand can save raw material investment costs.
Recommended sand making machine:
1. PLS series sand making machine
The PLS series vertical impact crusher can adopt the high speed mode of more than 80 m/s, which is used for fine crushing and shaping of coarse sand particles in the sand and gravel aggregate processing industry, so as to optimize and adjust the particle size distribution of the finished sand, so that the sand The fineness modulus can be smaller. It has the characteristics of low cost of use, strong adaptability, large throughput, excellent quality of finished products, wide application and unparalleled competitive advantages.
PLS series sand making machine, production capacity 16-550t/h
2. Recommended mobile sand making machine:
The mobile sand making machine is mainly composed of mobile equipment equipped with sand making equipment. There are two types of tire design and crawler design. With the cooperation of the mobile frame, it can move with the migration of the construction site; and the mobile sand making machine automatically Equipped with a power generation unit and a diesel unit, it is dual-purpose for switching between oil and electricity, and integrates material receiving, crushing, sand making, screening, and transportation into an integrated operation. It is suitable for work sites with limited sites and difficult construction operations.
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