Product Knowledge

The solution of ball mill common failure

1.When the mill in operation, the very frequency of hitting sound and sound is also great, it should be that some liner bolts are not tight, the solution is that you can judge which parts of ball mill liner is problematic by the sound of the machine, and then find a loose bolt and tighten.

2. When the ball mill and the motor bearing temperature rise exceeding the prescribed standard, you can use hands to touch that the bearing partial or all of the temperature is too high, then you can following this case to check the ball mill:

(1) Check the various parts of the ball mill lubrication points, the grades of lubricants and equipment used in the factory manual are consistent.

(2) Check the ball mill lubricants and greases to see whether the deterioration is true.

(3) Check the ball mill lubrication pipe is blocked, or lubricating oil is no direct access to the lubrication points, lack of fuel causes fever.

(4) Side of the ball mill gap is too small, the bush and shaft clearance is too large, the contact point too much, cannot form a uniform oil film bearing on.

(5) The ball mill roller bearing grease is too much or too little, too much form the rolling body stirred grease to produce heat, and heat is not easy to shed. Too few poor lubrication, should be required to add a little oil, is generally more appropriate bearing gap of 1/3 to 1/2.

(6)Ball mill grinding the ends of the hollow shaft seals tightly sealed body iron directly in contact with the shaft. The above problems, according to the reason for processing, except the bushing side of the gap is too small, or contact angle at the bottom of the cylinder must be grinding with a hydraulic jack from the top, which will bush out from one side of the shaft separately scraped tile mouth.

3. The ball mill reducer bearings fever: you can check the ball mill bearing excessive way to check, you can also check whether reducer vent is clogged, we should always clear the vent.

4. After the start of the mill motor with gear reducer, the main reason for the sudden vibration is the following:

(1) Runout mill coupling two gaps is too small, cannot compensate for the motor starts.

(2) Mill coupling alignment method does not, resulting in two axes of different heart.

(3) Tighten the coupling bolts of the ball mill coupling relative said, and the clamping force is not the same degree with that.

(4) Approach: the required wheel clearance fine, so that the two axes concentric. Tighten the coupling to the same moment of symmetry coupling bolts.

Tremendous vibration mill reducer driven mill:

(1): Ball mill and the balance shaft reducer, the axis is not in a straight line, its causes are: mill to install the liner, there is no secondary grouting or secondary grouting anchor bolts fastening a good winch rotate on one end of the grinding cylinder, resulting in grinding cylinder displacement, two of the axis is not a straight line, driven mill vibration reducer. Approach: To re-adjusted so that the axis of the ball mill reducer axis line in the same plane axis.

(2): The large ball is bulky, heavy weight, so that the ground subsidence; shifted. Settlement point is located next to the basis of monitoring; observation found that there are sinking, making adjustments.

5. Abnormal operation sound of the ball mill gear: ball mill gear box normal operation of the voice, should be uniform and smooth. Slight knocking sound occurs, such as gears, the friction sound of the hoarse, no significant change in operation, you can continue to observe and identify the reasons for the mill stopped processing sounds more and more, you should immediately stop the ball mill to be checked.

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