Gangue is a waste from coal mines and has a wide range of uses, including recycling resources, power generation, and building materials. Crushing and processing requires the selection of appropriate equipment, such as jaw, impact, cone, and impact crushers. Crushing and processing gangue can reduce pollution and transform it into high-quality building materials, promoting resource utilization.

With the vigorous development of the infrastructure industry, the demand for sand and gravel aggregates is increasing. The mining of natural river sand is restricted, and gangue, as a common raw material for machine-made sand production, is gradually becoming a new choice. So, what is gangue? What are its uses? How to effectively crush it?

Gangue Crushing and Processing Equipment

Gangue Overview

Gangue is a solid waste discharged during coal mining and coal washing. It has a low carbon content and high hardness. The main components include black-gray rocks and ore waste. In China, the annual emission of gangue reaches about 1 million tons. Its accumulation not only occupies land, but also may cause pollution and fire.

Main uses of gangue

Gangue has a wide range of applications, mainly including:

Recovery of coal and pyrite: Recover usable coal and pyrite from gangue through simple processes as fuel and chemical raw materials.

Power generation: Mix gangue with washed medium coal and use its heat to generate electricity. At the same time, slag can be made into cement and bricks.

Building materials: Replace

clay as a raw material for brick making, save resources, and produce high-strength gangue bricks.

Kaolin extraction: Kaolin in gangue can be used as a raw material for making high-quality calcined kaolin.

Roadbed materials: Crushed gangue can be used to prepare concrete and mortar, suitable for road construction.

Equipment suitable for crushing gangue

The crushing and processing of gangue requires the selection of appropriate equipment, and the common ones are:

Jaw crusher: used for primary crushing, capable of handling large pieces of gangue, uniform discharge, and easy adjustment.

Impact crusher: uses impact force to crush gangue, and the finished product has good particle shape and is suitable for market demand.

Cone crusher: integrates multiple technologies, has high wear resistance, uniform discharge, and is easy to operate.

Impact crusher: efficient and environmentally friendly, suitable for sand making, reducing dust and noise.

Conclusion

As a reusable industrial solid waste, the crushing and processing of gangue can not only reduce environmental pollution, but also be converted into high-quality building materials. Choosing the right crushing equipment will promote the resource utilization of gangue and contribute to sustainable development.