Device for processing electrolytic manganese dioxide of lithium ion battery

The invention provides a device for processing electrolytic manganese dioxide of a lithium ion battery. The device comprises a feed bin (1), a primary grader (4), a secondary grader (5), a cyclone collection device (8), a cloth-bag dust collection bin (6) and a draught fan (7), wherein a sedimentation tank (10), a calcining furnace (3) and a ball mill (9) are sequentially arranged between the feed bin (1) and the primary grader (4), the sedimentation tank (10) is also connected with a nitric acid tank (2) and is provided with two feeding holes, one feeding hole is connected with a discharging hole of the feed bin (1), and the other feeding hole is connected with a discharging hole of the nitric acid tank (2); a discharging hole of the sedimentation tank (10) is connected with a feeding hole of the calcining furnace (3), a discharging hole of the calcining furnace (3) is connected with the ball mill (9), and the ball mill (9) is connected with a lower discharging hole of the primary grader (4). The device is s