Coal gangue refers to the waste rock or mineral mixture that remains after coal is extracted from the ground. In the past, this material was typically discarded in piles, but in recent years, there has been increasing interest in using coal gangue for various industrial applications. One of the most common uses for coal gangue is as a construction material, particularly for the production of cement.
In order to utilize coal gangue effectively, it must first be crushed and processed to remove any impurities and make it suitable for use. The crushing process typically involves two stages: primary crushing and secondary crushing. In the primary crushing stage, the raw coal gangue is crushed by a jaw crusher, and the resulting particles are then fed into a secondary crusher for further size reduction.
Coal gangue crushing equipment
There are several types of crushers that can be used for coal gangue crushing, including jaw crushers, impact crushers, cone crushers, and hammer crushers. Each type of crusher has its own unique characteristics and advantages, depending on the application and specific requirements.
After the coal gangue is crushed, it needs to be processed further. This can be done using various techniques, such as screening, magnetic separation, and washing. These processes can remove impurities and separate the coal gangue into different grades, which can then be used for different purposes.
Crushing and processing coal gangue is an important step in making this waste material useful for industrial applications. By carefully crushing and processing the material, it can be transformed into valuable construction materials that can be used to build a wide range of structures and infrastructure projects.