I work in an industrial copper company as vibration analysis supervisor. This company started to work about 2 years ago. We have two Ball Mills and one Sag Mill. We had some visual inspection on pinion and ring gears, during these inspections we found some abnormal wear on this gears (pictures show this problem in enclosure).
The Ernest Henry SAG mill (11 MW) is currently the largest twin pinion single drive mill installed in Australia. Problems have been experienced with the twin pinion drive at Fimiston and with the ring motor at Cadia. At Cadia, excessive vibration and deflections in the drive stator were encountered during commissioning of the mill and later ...
Vibration Sag Mill Motor NDE Bearing. At our mine we have an issue with vibration at the Sag Motor NDE bearing. The bearing is a journal white metal bearing. The motor has been running for about 14 months now. The vibration at the NDE bearing was around 2mm/sec. In the last month it has climbed to 4.5mm sec with the dominate frequency 1x RPM.
vibration problem in cement mill. Mechanical failure is an important factor affecting the efficiency of Cement Grinding Mills which is a problem that many users worry about It is believed that many customers in the production encounter the phenomenon of severe vibration of the Cement Grinding Mill First of all we must know what causes this and then we can prescribe the right medicine SBM ...
When the Sag Mill was in operation the clutch operation just did not look ok and pad wear was uneven. The clutch was changed with a used clutch and the results were significant. The axial vibration on the Sag NDE bearing axial plane reduced from 30mm/sec rms to under 2mm/sec rms. The motor vibration is now satisfactory in all planes.
Fig. 1 shows a dynamic analysis by ODS, detecting high deflections (the red area) in the pinion bearing housing of a semi-autogenously grinding (SAG) mill. This problem occurred when the company increased the production (i.e., load) in the SAG mill. The root cause to the problem was that this mill was not designed to operate at such a high load.
Sag Mill Vibration Problems. Sag Mill Pinion Vibration Problems Sag Mill Pinion Vibration Problems. As mentioned the Sag Mill was run for 8 days at its limit 5500kwto 5700 kw and this is the time the high vibration started I still have the motor suspect but the. Service Online Problems in the cement industry. PROBLEMS.m m.
Figure 1 shows a dynamic analysis by ODS, detecting high deflections (the red area) in the pinion bearing housing of a semi autogenously grinding (SAG) mill. This problem occurred when the company increased the production (i.e., load) in the SAG mill. The root cause to the problem was that this mill was not designed to operate at such a high load.
High Axial Vibration On A Ball Mill. FOB Reference Price: Get Latest Price High Axial Vibration On A Ball Mill. Axial vibration cement mill qlifebeigh vibration cement ball mill ball mill wikipedia the ball mill is a key piece of equipment for grinding crushed materials and it is widely used in production lines for powders such as cement silicates refractory.
Misalignment Unbalance Looseness Defective Bearings Resonance Electrical Problems Aerodynamic / Hydraulic Forces Vibration applications Compressor Blower Sag mill and Ball mill motor, reducer and pinion Crusher motor inner/outer pinion shaft CHARACTERISTICS OF VIBRATION Amplitude Displacement Units are mils or microns(1 micron = 0.001mm or 0 ...
table 1 - ball mill shaft speeds, expected forcing & fault frequencies ball mills, forcing frequencies (cpm) shaft speeds 1x rpm motor speed 1,191 ball mill pinion speed 226 ball mill gear speed 18 gearbox (between motor & ball mill) nb ftf bsf 2x bsf bpfo bpfi input brgs, skf#22330 15 491 3,192 6,384 7,358 10,507
the range of gear driven mills to a theoretical limit of 32 MW. The Ernest Henry SAG mill (11 MW) is currently the largest twin pinion single drive mill installed in Australia. Problems have been experienced with the twin pinion drive at Fimiston and with the ring motor at Cadia. Get Price; High Vibration Ball Mill Duel Pinion Drive Mechanical ...
Grinding Mill Foundations. admin 23 September 2014 2014, Design, Foundations, Stiffness, System Analysis, Vibration. Most of our work since 2000 has been in developing grinding mill foundations to avoid vibration and unacceptable deflections. On a recent project for a plant in Peru, the client was told by the mill vendor that there was no need ...
Sag Mill Syncronis Motor high axial vibration non . When the Sag Mill was in operation the clutch operation just did not look ok and pad wear was uneven The clutch was changed with a used clutch and the results were significant The axial vibration on the Sag NDE bearing axial plane reduced from 30mm/sec rms to under 2mm/sec rms The motor vibration is now satisfactory in all planes
Out Problem Cement Mills Pinion Vibrations. Ball mill drive motor bearing vibration. The pinion and girth gears of two 9 MW ball mills exhibited severe vibration can cause premature gear damage 1 more closely than a helical gear however Vibrations on tube ball mill pinion gear bearings SKD crusher quarry BALL MILL GEARBOX PROBLEM Vibration Photo Of Ball Mill Motor 1191 rpm Parallel Gearbox ...
Sag Mill Pinion Vibration Problems - Crusher USA . About sag mill pinion vibration problems-related information:contents. introduction; power from water; impulse turbines the pelton wheel; reaction turbines ... Mills - SAG, Ball & Rod - CJT Surplus Equipment . Mills: SAG, Ball & Rod. ... •Used 11.5' dia x 18' long Kennedy Van Saun ball mill ...
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SAG mill drives (as GMDs) by some operators and principal motor designers/manufacturers until the reasons for known problems in design or manufacturing were better understood and resolved. Accordingly, the latest 40 ft dia. SAG mill is rated at 29 MW and 78% C.S., with a 42 ft dia. mill built but not yet operational. The more recent option
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