Coal gangue is a solid waste discharged from the coal mining process and coal washing process.


Coal gangue is not only a mineral resource with a large amount of storage, but also a high-quality sand-making raw material. It can be comparable to natural sand in terms of production performance and particle quality, so coal gangue can be used as concrete aggregate! Coal gangue is widely used after being made into sand by sand making equipment. It can be used in brick making, building aggregates, cinder, brick factories, recycled bricks, building materials, road construction and other engineering projects. It is used in road construction. The base material for paving, the effect is very good.


Moreover, the coal gangue is not used, occupying a large area of land. The escape or leaching of sulfides in coal gangue will pollute the atmosphere, farmland and water bodies. Gangue mountains will also spontaneously combust and cause fires, or collapse in the rainy season, silting up rivers and causing disasters. China has accumulated more than 1 billion tons of coal gangue, and it is estimated that 100 million tons of coal gangue will be discharged every year. Therefore, the use of coal gangue to make sand can not only improve the atmospheric environment, but also relieve the pressure of sand in the market instead of natural sand. After using sand making equipment to make artificial sand, the price can be doubled, the market demand is large, and the profit is very broad.


If coal gangue is used as concrete aggregate, what machines are needed for production?

Stationary Crusher:

1. Jaw Crusher


The jaw crusher adopts deep cavity crushing, no dead zone, the feeding and crushing efficiency is greatly improved, and the energy saving of a single machine is 15%-30%, and the energy saving of the system is more than doubled. It has the advantages of advanced technology, long service life, reliable operation and easy maintenance, etc. It can be used as the first process machine for crushing coal gangue.


2. Impact crusher

CI impact crusher

The impact crusher is often used in the secondary crushing equipment for sand making and shaping. Users who do not have high requirements on the particle size of the finished product can only choose “jaw crusher + impact crusher” to make coal gangue into coarse sand. For those with higher requirements on the quality of sand making, the sand making machine needs to be used again for further fine crushing.


3. C series impact sand making machine


C series impact crusher has three functions of crushing, sand making and shaping, and is often used in the final process of crushing and sand making production line. The finished machine-made sand grain is full, the gradation is reasonable, and the output is stable.


Mobile Crusher:

exv (8)

The Mecru mobile station adopts an integrated operation method, which can be directly driven to any position of the work site for operation, eliminating the complex site infrastructure and auxiliary facilities installation of separate components, and reducing labor time consumption.


Users can adopt a variety of configuration forms according to the type, scale and finished material requirements of processing raw materials, which have the characteristics of convenient installation, strong mobility, efficient material transportation, and strong adaptability.

Post time: Jul-07-2022