First of all, using 2T chains along the rotor blade diameter cut to pull the rotor rotation, after checking the powder selecting machine bearing set in during the rotation of the rotor of abnormal sound and vibration, rotor parts and related structure without interference or card die situation, then ruled out the possible causes .

vertical roller mill

Secondly, by using the measured level tools such as ruled out . Then, we take the transmission by measuring the V device of belt pulley center distance, and according to the V model calculation with stress, the results accord with the requirement of equipment, excluding 4 reasons.

vertical roller mill

Finally, we removed the protection of V belt drive cover, after inspection of packing powder selecting machine sealing device (see Figure two S view) found that the packing sealing device is completely crushed, makes the packing on the frictional resistance increase with round after dismantling, re installation, 5Hz starting powder selecting machine, rotor smoothly starting operation, and motor current value is stable, conforms to the normal range.

vertical roller mill

In the whole process of debugging, various accidents occur, we found a big reason is the assembly of components or equipment installation quality caused by. So, for equipment installation work, we should give high attention, try to avoid the resulting engineering rework and debugging production delays and losses.