The Problems And Solutions Of Ball Mill

By Author: shanghai Zenith
Total Articles: 11
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The problems appeared in the use process of ball

mill can be dealt with like this:
Common problem No.1: no powder or little powder with low output.
Reasons: (1) The lock powder device isn't adjusted well and the sealing is loose, which lead

to the powder suck-back. (2) The scraper knife is of great abrasion and can't scoop up the

materials.
Solutions: (1) Check and adjust the sealing of lock powder device. Once found the air

leakage, use the scraper to stop it. (2) Change for a new scraper knife.
Common problem No.2: the powder of the finished product is over-coarse or over-fine.
Reasons: (1) The blades of the classifier is of bad abrasion and can't classify the

material. (2) The fan delivery is inadequacy.
Solutions: (1) Change the balde and decrease the supply air rate of fan properly to make it

finer. (2) For the over-fine products, increase the inlet air quantity.
Common problem No.3: then main engine electric current goes up, the engine temprature goes

up, and the fan elctric ...
... current goes down.
Reasons: (1) The feeding is too much, which makes the air flue blocked by powder lot and the

air exhaust of pipeline is obstructed. The circulating air emits heat and make the

temprature of the main electric current and the engine increase, while the fan elctric

current decrease.
Solutions: (1) Decrease the inlet amount and clean the powder in air flue. (2) Turn up the

air pipe valve, and keep the inlet material temprature below 6 centigrade degreee.
Common problem No.4: the main engine of ball mill is of high noise and great vibration.
Reasons: (1) The inlet amount is little. The scraper knife wear is bad and can't scoop up

materials. The foundation bolt is loose. (2) The hard impact of material is large and there

is no bed of material. (3) The grinding roll and grinding ring is out of round and shape

badly.
Shanghai Zenith is committed to designing, producing mills,
crushers, conveyors, rotary kilns, feeding

machines, drying and calcinating as well as beneficiation equipments and etc, which are

widely applied in electricity, metallurgy, mine and quarry, wharf, granary, chemical

industry. Our products have been spreaded all over China, and also exported to European,

American, Asian, African countries and enjoyed great popularity among our customers.