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Reason of ball mill diafram jamming

ball mill jamming problems . Dear All hi !!!!! I am new in cement industry, presently i am operating a small type of ball mill for production of slag cement. mill dia 2.28 mtr X 12 Mtr. capacity is 15 TPH, ball mill filling level in 1st cahamber is 25 % and 22 % in second chamber. in ball mill, the mill outlet bin has been jamming periodically. the mill vent fan damper operated in 60 % open

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