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The standard line of mills includes autogenous ( AG ) and semiautogenous ( SAG ) mills, beginning with a 6 ft x 2 ft ( 1.83 m x 0.61 m ) 25 hp ( 18.7 kW ) laboratory mill and is followed by 12 ft to 36 ft ( 3.7 m to 11 m ) diameter mills ranging in power from 150 to 20,000 hp ( 112 to 14,900 kW ).
vibration packing machine for 25kg powder - jbauctions.co.za. Batch Powder Handling in Food and Other Industries - Matcon IBC. Feb 27, 1998 ... avoid the problem occurring on the way to the packing machine. ... external vibration, extra lift force and height and extreme containment using air .... 25kg bags are by far the dominant means of distributing powder …
Vibration Screens Engineering Drawings - chelseadecor.co.za. Mac's Screens - English Company Profile Drawing and Design. • Fabrication Mac's Engineering designs and builds both double deck Resonance Screen as well as Brute Force The Mac's Screen, therefore, transmits no vibration to the base frame or supporting structure.
The 6.2 MW SAG mill is fitted with a single pinion drive with variable speed drive. The SAG mill product discharges via 40 mm discharge grates and trommel screen with 30 x 5 mm slotted aperture. Oversize from the SAG Mill trommel is transported by pebble recycle conveyors onto the SAG mill feed conveyor and returned to the SAG mill.
Dual pinion sag mill huisarts vansichemnl. Ball Mill Failure Modes stundengebet SAG mill, ball mill, ring gear, dual pinion, drive systems, variable Chat With Sal Chat With Sal ball mill failure modes OptonClinic Ball Mill Ball mills are used primary for single stage fine grinding, regrinding, and as the second stage in two stage grinding circuits According to the need of Chat
Thus, with condition monitoring of the SAG mill behaviors employing vibration, acoustic and thermal signals, the relevant parameter can be diagnosed and monitored. Accordingly, the mill may work on its optimum conditions without the concern of any imminent problem like mill congestions and unplanned stops.
SAG mill product feeds two parallel ball mills of 6.6 m×11.1 m (internal diameter×length), each with a 9.7 MW twin pinion drive. The ball mills are operated at a ball charge volume of 30–32% and 78.5% critical speed. The SAG mill trommel undersize is combined with the ball mills' discharge and pumped to two parallel packs (clusters) of ...
Jun 25, 2008· a gearless mill drive motor We have numerous problems with insulation. ie partial discharge. The main problem I think is the derating factor at high altitudes.(insulation at high and cold altitudes over 2000 metres) Could I please have suggestions around this
vibration analysis systems ... problems with the lubricant such as ing ... Make pinion 2 HRC points harder than gear Use oil with high micropitting resistance Keep lubricant cool, clean, and dry Use high-viscosity lubricant Operate at high speeds
ball mill helical pinion gear vibration cause. OrBall MillHelical Ring Gears Description. Sag orball millhelical ring gears description.Following the sagmillwill be two 9,000-hpball.The largest gear-drivenmill.Chat with sales girth gear sagmillgrindingmillchina.Ball millhelical pinion gearvibrationcause description causes of poor output on coalball mill.Gears or the single …
ball mill pinion bearing hotelenergie . ball mill pinion bearing vibration Odysseus Project. High vibrations on a ball mill AMP Matenance Forums Hello everyone, I have a problem with high levels of vibration at the supports of the pion (fixed and floatg beargs) of the ball mill pion beargHenan Mg Heavy Machery Co., Ltd. axial vibration of ball mill pion Description : Ball …
The ultimate crystalline size of graphite, estimated by the Raman intensity ratio, of 2.5 nm for the agate ball-mill is smaller than that of …
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Basically they support equipments like motor, reducer gears, pinion drive blocks and mills with girth gears. A portion of Sag mill foundation is a wall almost 10m x 2m x 8.2m in height. It is coupled with mill foundation system consisting of four wall columns braced by two tier beams to support two end bearings of rotating mill.
This customer then engaged our reliability team and an SKF IMx-S online Mill condition monitoring system was installed on their SAG mill. This system monitors the complete drive line and includes: Motor, three stage gearbox, pinion bearings, trunnion bearings, pinion and girth gears. Careful analysis exposed the gear fault
We sight herewith the most common problems, with their solutions. No. 1 – GEAR AND PINION VIBRATION. Cause A – EXCESSIVE BACKLASH. Move mill gear toward the pinion and check for proper backlash per separate instructions. Cause B …
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.
Reason and solution of sharp vibration of ball mill pinion Published on May 3 2020 May 3 2020 • 0 Likes • 0 CommentsGet price 6 common causes of machine vibrations — Istec Excessive vibrations on rotating equipment like pumps gearboxes turbines and compressors are a clear sign that the equipment is not functioning properly Equipment that ...
Problems with gear spindles on rolling mills are a common occurrence. ... would be transmitted to the pinion stand gear assembly, due to ... any vibration conditions. The mill load was returned to for the tests. The spindle was designed for 1,225,200 in-lbs. of torque. The highest level of torque seen during the
1- Wear pattern should be even along the teeth and around the pinion. Side wear tend to suggest misalignment while specific tooth wear point to hunting tooth, load shock, natural frequency or torsion vibration. The pictures suggest superficial fatigue flaking that should be part of a normal service life depending on load, hardness, and lubricant.
consist of a crusher followed by a SAG mill followed by a ball mill. In this context, the SAG ... rod gates and rack and pinion gates is provided before screens to permit ... vibration and noise. Weight concentrated within rotor eliminates the external fly-wheels.
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 0.039 mils.
Pinion Gear For Ball Mill - ball mill. Ball Mill Pinion Vibration Analysis Machinery. I have an issue with a gear drive on a ball mill 2xgm is rising and i have sidebands at 107cpm and i dont know why they are at 107 not relevant to any turning speeds ect i checked the root clearance a week ago and the inboard is about a 066 smaller than the outboard the …
This pinion is a spur gear, engaging a rack on the underside of the table. Apparently, a previous owner had the machine apart and had lost the original pinion. He then put in an 'off the shelf' pinion, but the result was a 'notchiness' as the pinion engaged the rack. I took this pinion off and determined it to be a 16 pitch x 18 tooth gear.
The vibration measurements at the feet and concrete are rms. What vibration levels would you expect in mm/rms Not being a structural engineer but the foundation is quite massive. When they commissioned and started the Sag Mill up I was quite impressed with the low vibration which included the motor, gearbox and pinion bearings.
Once the oil was changed, the vibration did not increase any further. The mill has been in operation one year since the lubrication problem was detected at an early stage Case 2) asset analytics system installed to overlook two (2) GMDs of 38 feet (~11.6 m) diameter SAG mill drives; in a remote location, recording simultaneously data of relevant
The pinion bearings have been inspected, the air clutch. The pinion girth gear although some wear does not indicate it to be the cause. The level or this high level vibration tends to lead you back to the motor. They were running the motor on red line on 5600KW to 5700KW for up to 8 days.
ABB provides a variety of different types of drive solutions for the mining industry. For example, ring-geared mill drive (RMD) systems are good solutions when the power required to drive the mill is under 18 MW, i.e., a maximum of 9 MW per pinion (Fig. 4). Yet as tube mills grow in size in order to meet the demand for larger throughputs, the ...
Horsburgh & Scott (H&S) received a call from large steel mill with journal bearings burning up on their mill back up roles. The H&S Sentry® team collected vibration data and developed a dynamic model while simultaneously monitoring the problematic unit and a good unit with analog sensor for oil pressure.
Vibration readings taken at mill HP pump running at various RPM, The vibration level was less and almost 8mm/sec to 9mm/sec when the pump was running at 900 rpm, so it is advisable to run the pump at 900 rpm to have minimum vibration in the SAG Mill. Conclusion: