Raymond Pulverizer Coal Mills | AMP Maintenance Forums
Aug 29, 2007#0183;#32;We have 8 Raymond Bowl Mill pulverizer and have the same problem on only one of the mills. I have noticed that the ing mill oil has to be changed more often than others due to increased oxidation (higher TAN). The oil moves up the vertical shaft via a groove on the vertical shaft. I believe this is called an akeli pump.