Coal gangue is discharged as coal industrial waste, which is discharged from various stages of coal mining, such as coal mine construction, mine reconstruction and expansion, coal extraction process and raw coal washing process. The annual emission of coal gangue is equivalent to about 10% of the coal output of that year, which is large and has high reuse value. The manufacturer of coal gangue grinding mill will introduce the use of coal gangue for you.

HC series coal gangue Raymond mill

As the world’s largest coal producing country, China has a large amount of coal gangue stockpiled. Exploring the use of coal gangue can realize its resource utilization, improve the ecological environment of mining areas, and ensure the green and sustainable development of modern coal mining enterprises.

Coal gangue is piled up for a long time, and spontaneous combustion will occur when the internal temperature reaches a certain value. Therefore, coal gangue is often divided into two types: undisturbed coal gangue and spontaneous combustion coal gangue. Among them, the appearance of the original coal gangue is mostly black or grayish black, and the surface is mostly adhered with slime and fine coal gangue. Spontaneous combustion coal gangue has low carbon content, relatively high porosity, stacking density between 0.9 and 1.3 g/cm3, surface layer is mostly ceramic red or ceramic yellow, and internal carbon combustion is not sufficient, there will be black core.

What are the uses of coal gangue grinding mill after processing? The comprehensive utilization of coal gangue is affected by factors such as the ratio of aluminum to silicon and the content of carbon and sulfur. It is mainly used for the production of alumina, fuel, chemical raw materials, ceramic raw materials, preparation of building materials and road engineering filling.

According to the knowledge of the manufacturer of coal gangue grinding mill, the most important application is to produce building materials and backfill or subgrade materials. The preparation of building materials from coal gangue mainly includes brick making, cement raw materials, ceramic materials, etc. The main components of coal gangue are SiO2 and Al2O3, which are similar to the chemical composition of clay, and can replace part of clay to produce cement. The crushed coal gangue and lime are mixed in a certain proportion, and the clinker mainly composed of calcium silicate is obtained after calcination. The cement with high compressive strength can be obtained by grinding it with gypsum and other materials. Coal gangue is used as road base material for public square surface decoration, pavement or parking lot, which can reduce the cost of subgrade, foundation or dam foundation construction and reduce the land area occupied.

Understanding the use of coal gangue can promote the development of comprehensive utilization of coal gangue. The manufacturer of coal gangue grinding mill recommends you a professional and easy-to-use coal gangue grinding mill equipment – HC series coal gangue Raymond mill produced by HCMilling(Guilin Hongcheng). The equipment has been widely praised by the market, and is suitable for technicians to produce high-quality coal gangue powder to promote the development of the resource utilization of coal gangue.

If you want to know more information about coal gangue Raymond mill, please consult the manufacturer of coal gangue grinding mill online, please contact mkt@hcmilling.com or call at +86-773-3568321, HCM will tailor for you the most suitable grinding mill program based on your needs, more details please check www.hcmilling.com. Our selection engineer will plan scientific equipment configuration for you and quote for you.