How does a magnetic pulley function in the context of coal processing?

A magnetic pulley is specifically designed to remove ferrous (iron-based) contaminants from materials during processing. In the context of coal processing, its primary function is to attract and separate any iron or steel debris that may be present. This is crucial because such contaminants can not only compromise the quality of the coal but also pose risks of damage to equipment downstream in the coal handling process.

When the coal passes over the magnetic pulley, the magnetic field generated by the pulley captures loose metal pieces, effectively delivering clean coal to further stages of processing or transport. This ensures the integrity and purity of the coal being handled, as well as contributing to operational efficiency and safety.

It is important to note that weighing, warming, or crushing the coal are separate processes that do not involve the unique magnetic separation function provided by a magnetic pulley. Thus, the primary role of the magnetic pulley in this scenario is effective separation of iron contamination, making it an essential component in maintaining the quality of coal during processing.