Hello to everybody,
We have 6 ball mills in a cupper concentrator plant. These mills suport over two pad bearings (fixed and floating) that are lubricated with high pressure oil.
Every mill has a lubrication room with two oil modules, one for each pad and works with high pressure Rickemeir gear pumps.
Our problem is that almost all of these high pressure pumps have a very high level of vibration in some cases they reach 54 mm/s at GMF of pump gears.
Do you suspect which could be the source of this high vibration?
Pump case material is inox steel.
I would aprecciate you help.
Additional information: In our old concentrator plant we have 5- 6 mm/s vibration on similar gear pumps on our ball mills lubrication rooms.