Analyze the Steel Type Coal Ball Grinding Mill Faults

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1. The little pineapple snaggletooth
In the daily use of Ball Mill, the little pineapple
snaggletooth happens most often, the reasons are as follows:
(1). The little
pineapple design strength is weak, and the manufacturing quality requirements is
relatively low.
(2). The lubricating of the little pineapple is bad, the mesh
is bad which lead to localized wear, bubbling, and material quality coming off.
The local stress concentration is worsened which speed up the
(3). Supercharge caused by the too many steel balls added into
the Coal Ball
in production primary which lead to the coal ball mill electric current
reaches to 130A. Decrease the steel ball loading capacity, keeping the current
at around 120A. (the current raises 1A with one ton steel ball added,)
2. The
little pineapple tooth surface abrasion
The gear wheel surface generally
presents bubbling, peeling, scallops, and such corrosive pitting phenomenon.
Besides the little pineapple tooth surface temperature is high which makes the
coal grinding ball mill gear teeth attrition condition seriously.
The reasons
are as follows:
(1). The coal grinding ball mill protection cover sealing is
not good. There is no sealing on the association point of activity and inertia
between the Coal Mill
hollow shaft and shelter which speed up the ash entering to the big pineapple.
The preheater of the boiler is the three branch warehouse, with one way the
secondary air of the blower, one way the primary air of the primary air fan. As
the primary air pressure is over-high, it blows down the ash accumulated from
the smoke side carrying by the preheater heating surface and takes it away. The
pipeline weld bond of the hot air system is unqualified which leads to serious
leakage. The ash then enters to the wheel gear shield and speed up its
(2) The alignment pin problem: It is regulated that the
temperature difference measured along the little cutter teeth width should be no
more than 8??, and the highest temperature on the tooth surface should be no
more than 100??. Hit the alignment pin in after the intervals between each part
is normal. When the temperature difference is more than 8??, raise the bearing
end of low temperature. One of the reasons for the ball mill tooth surface
attrition is that the alignment pin is not hit due to the great work amount
which is also the reason why some individual little cutter teeth surface is high
and the two ends temperature difference is relatively large.
It consists of
motor, reducer, case, milling device, separator, outlet, coal feeding pipe,
loading device, control box and sealing apparatus. The fittings are all of
superior performance in the world at present. We ensure good quality and
durability of the whole machine.

1) The concrete base weight required is
only 3 times of that of other similar machines thus the construction expenses is
greatly reduced
2) Small vibration while using and doesn’t need
shock-absorbing device
3) Large load adjustment scope, so it can run under
various environments
4) Can bear very strong explosion pressure
5) The
grinding roller adopts new material and new craft, which ensures long service
life and low maintenance cost
6) There is gap between the grinding parts; it
can start with load or offload. Get Ceramic Ball Mill,Ball Mill,Beneficiation From


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