Uses of Gangue after Crushing and Processing

Gangue refers to waste materials generated during coal mining and coal processing. After crushing and processing, products with certain uses can be obtained. The following are the uses of gangue after crushing and processing.

The products after gangue crushing and processing mainly include the following:

1. Gangue granular materials: Gangue after crushing and processing can obtain granular materials of different particle sizes, which are widely used. These granular materials can be used as fillers in the construction field, such as backfill in roadbed and foundation engineering, which plays a role in reinforcement and stabilization. In addition, it can also be used for soil improvement to improve soil permeability and fertility.

2. Gangue bricks: Gangue is mixed with an appropriate amount of cementitious materials, and gangue bricks can be produced after molding, pressing and curing. These bricks have certain strength and durability, and can be used for masonry and pavement paving in construction and road engineering, which can make full use of waste resources and contribute to environmental protection and sustainable development.

3. Gangue sand: After screening and washing, the gangue can be converted into sandy products and used as sand in building concrete. This kind of gangue sand can replace natural river sand, meet the demand for sand in construction projects, and reduce the pressure on the exploitation of natural resources.

4. Gangue expansion particles: After high temperature treatment, gangue can be expanded into lightweight particles, called gangue expansion particles. This kind of particles has a low density and good thermal insulation performance, and can be used in building materials, such as making lightweight partition boards, thermal insulation materials, etc.

In general, the gangue after crushing and processing can be converted into a variety of useful building materials, which are widely used in construction, infrastructure and environmental engineering, etc., realizing the effective utilization of waste resources, and at the same time having a positive impact on environmental protection and sustainable development.

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