1,ball mill full load test: in half a load test check everything is normal, will add the medium, to appropriately increase the amount of ore, full load operation 10 ~ 20 h, finally should achieve the following requirements: smooth operation no abnormal sound; The main motor in the current temperature allowed; All normal lubrication; The main bearing temperature not more than 60 degrees; Each no leak, water, mineral oil leakage.
2, ball mill no-load test: is in not ship medium (ball, great) and material to the idling. Continuous operation should not be less than 4 h, general to running 8 to 16 h, and may, according to the specific conditions. Test run time to grow more, on the gear tooth surface grind the bearing, the better.
3 and a half, ball mill load test: medium filling rate Φ = 25% ~ 30%, give a person the appropriate number of and water (discontinuous running 8 ~ 10 h)

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