Iron fine removal and sorting system for magnetic hard rocks

An iron fine removal and sorting system for magnetic hard rocks. The system comprises a feeding system (1-1), a hard rock screening system (1-2), a whole hard rock sorting system (1-3), a hard rock coarse sorting system (1-4), a hard rock fine sorting system (1-5), and an automatic hard rock return system (1-6). The hard rock screening system (1-2) can conduct size grading on hard rocks. Materials containing whole balls and crushed balls are subjected to whole ball iron removal and sorting. The hard rock coarse sorting system (1-4) can sort out all ferrous metal. The hard rock fine sorting system (1-5) can accurately separate the sorted metallic iron from the hard rocks. The whole sorting system uses the low-energy-consumption energy saving technology. A PLC-controlled pneumatic push rod (5-4) is used in the separation technology, the precision of an execution mechanism (5-3) is high, and the iron piece separation precision is high. By using the whole sorting system, the continuous operation of a discharging system of produced tailings can be ensured, and it is ensured that all the hard rocks and iron return to a production system (1-6) after sorting, and the environment-friendly zero-emission standard is satisfied. The iron fine removal and sorting system for magnetic hard rocks has a high automation degree, a compact structure and a small occupied area and is convenient to install.