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Case Study Grinding Mill Bearing Failure SlideShare

Jul 31 2013 nbsp 0183 32Case Study Grinding Mill Bearing Failure two 2 cylindrical roller bearings and one 1 ball bearing The mill is being belt driven by a 100 hp twopole motor The mill normally operates at 3 150 rpm 1 Outboard Motor Bearing Legend 2 Inboard Motor Bearing 3 Inboard Mill Bearing 4 Outboard Mill Bearing Bearing that was failing The

1000 HP Synchronous Motor Electric motors generators

Jun 16 2004 · I have a Synchronous Motor coupled to a Ball Mill by clutch It starts uncoupled and after it synchronizes the clutch engages the load 180 coils 40 poles 1 5 coils per group 2 circuits wye Lap winding which allows users to draw from an almost limitless amount of compute power that is not only affordable by consultants and small

Used Ball mills For Sale

Buy used Ball mills from A M King Industries We can help guide you to the best solution for your equipment needs

INNOVATION NEWS Mills and GMDs ABB Ltd

Mills and GMDs Maarten van de Vijfeijken looks at large larger and the largest units in grinding ore T he gearless motor also called wraparound motor or ring motor is a very large synchronous motor The poles of the motor are directly installed on a pole flange on the mill shell this means the mill body becomes the rotor The stator of the

Synchronous motor Shanghai Pinnxun Electric Motor Co

China Synchronous motor catalog of 3200kw T Series Synchronous Motor for Grinding Miller Synchronous Motor 30 Pole Electric Motor 6000V IC01 Motor provided by China manufacturer Shanghai Pinnxun Electric Motor Co Ltd page3

Milling Energy intensive and high maintenance

Ball mills on the other hand as far as process requirements are speed motors with 30 to 40 poles is the compactness of the motor transportation of the equipment on site Motor Figure 6 Arrangement drawing of high speed solution Figure 7 Arrangement drawing of low speed solution

1 x FLS SAG Mill excl Motor Drive globalpam

Mill Dimensions 12 192 x 7 620 mm 40 x25 Diam x L Default Mill Speed 9 31 RPM Ball Mill Trunnion Lubriion System for each mill Ball Mill Feed Spouts Ball Mill Braking Motor Type ONAN of Poles 60 Preferred Synchronous Speed 11 41 RPM Standard Design IEC

Ball mill Ball Mill Price Ball Mill for Sale

Ball mill is the key equipment for re crushing the materials after they are primarily crushed Ball mill is widely used for the dry type or wet type grinding of all kinds of ores and other grindable materials in cement silicate product new building material refractory fertilizer black and non ferrous metals and glass ceramic industry

Ball Mills an overview ScienceDirect Topics

The ball mill is a tumbling mill that uses steel balls as the grinding media The length of the cylindrical shell is usually 1–1 5 times the shell diameter Figure 8 11 The feed can be dry with less than 3 moisture to minimize ball coating or slurry containing 20–40 water by weight

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copper rod mill plant manufacturers germany offers 73581 cold rolling mill manufacturers products About 9 of these are Used Steel Rebar Cold Rolled Machine Cold Rolling Mill for Sale Get Price Ball Mill Supplier In Germany silica sand gold copper ore grinding mill machine by ball mill supplier in germany US 990 21000 Set 1 Set Min Order

Frequency domain characterization of torque in tumbling

Jan 01 2018 · Frequency domain characterization of torque in tumbling ball mills using DEM modelling Application to filling level monitoring The power consumption of the electric motor driving a ball mill has low sensitivity to detect variations in the quantity power draw segregation and wear in ball mills using discrete element methods Miner

Gearless mill drives

ball mill at Ciments Lambert Lafarge France The 22 MW GMD for 28 ball mill 28 MW GMD for a 40 SAG mill The poles of the gearless or synchronous motor also called wrap around motor or ring motor are directly installed on the pole flange of the mill

AMIT 135 Lesson 7 Ball Mills Circuits – Mining Mill

Diameter 40 – 100 cm at 30° to 60° Mill Power Draw The motor power draw required to turn a mill from rest to the operating speed includes the energy required for the initial starting torque and mechanical arrangements to rotate the mill Wet Ball Mill Power Draw Bond

PDF Grinding in Ball Mills Modeling and Process Control

Grinding in Ball Mills Modeling and Process Control synchronous motors equipped with an air cl utch or gear transmission After the mill 40 The process control in a ball mill grinding

Ball Mill 40 Poles Motor Drawing Mining Equipment Crusher

Ball Mill 40 Poles Motor Drawing Mining Equipment Crusher We are a large scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment milling equipment mineral processing equipment and building materials equipment

The Motor Guide ABB Ltd

The Motor Guide basic technical information about low voltage standard motors 1 3 pmd 3 3 16 2005 12 08 PM 3 5 Standard voltage ranges 40 Code letters for voltage bands 40 Motors for other voltages 41 drawings and certificates from various authorities worldwide can be downloaded

Choosing a SAG Mill to Achieve Design Performance

Choosing a SAG Mill To Achieve Design Performance John Starkey1 Principal Consulting Engineer Sami Hindstrom2 Manager provide the required grinding chamber and motor to draw the required grinding power This 40 60 80 100 0 2 4 6 8 10 12 14 SAG Shell Energy to Grind to T80 1700 microns kWh t C u m Di s t o f O r e

Drawings Details Facilities and Services University of

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Causes of frequent burning of induction motor 400kw slip

Dec 19 2011 · I am currently assign to investigate the frequent burning of Ball Mill motor slip ring Induction Motor Specification 400KW output 870rpm 3300V 60hz 8 poles This motor drives an equipment called Ball Mill My initial finding is that maybe the motor experienced over loading which allows users to draw from an almost limitless amount

Stirred Milling VERTIMILL® Grinding Mills Stirred Media

Stirred Mills have been proven to provide energy savings compared with traditional ball mills The finer the product required the more efficient stirred mills will be than a ball mill The attrition grinding action vertical arrangement and the finer media size distribution contribute to make stirred mills more energy efficient grinding machines

Ball Mill Design Power Calculation

A motor with around 1400 Horse Power is calculated needed for the designed task Now we much select a Ball Mill that will draw this power The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill drive in order to grind the tonnage of feed from one size distribution The following shows how the size or select the matching mill required to

Gearless mill drives Grinding ABB

Our GMD eliminates all mechanical components of a conventional mill drive system such as ring gear pinion gearbox coupling motor shaft and motor bearings By mounting the rotor poles directly onto the mill the mill itself becomes the rotor of the gearless motor

ball mill 40 poles motor drawing accinsa

Ball Mill 40 Poles Motor Drawing oxyliveservices ball mill withchein redstudio Ball Mill Poles Motor Drawing Henan Mining Machinery and ball mill to buy capacity The ball mills are driven by motor Online Service 5 tph ballmill south africa k consulting

Selecting Motor Controls for Mining Process Torque

Selecting Motor Controls for Mining Process Torque Demands Slide 1 Selecting Motor Controls Ball Mill Ore is crushed by collisions with steel balls CONSTANT Poles Typical Induction Motor SpeedTorque Profile Mill Starting can be a challenge MILL TORQUE

ball mill 3D CAD Model Library GrabCAD

ball mill for ore ginding The Computer Aided Design CAD files and all associated content posted to this website are created uploaded managed and owned by third party users

Soft Start For Ball Mill Appliion LMPForum

Mar 25 2007 nbsp 0183 32Soft Start For Ball Mill Appliion posted in Soft Starters Hello All I have a customer who is manufacturing ball mills for chemical industry He is interested to install Softstarter or VFD for the motor but is apprehensive about whether it can do the job of starting the mill

motor selection for ball mill edaboard

Mar 09 2016 · Hi All I am planning to build a ball mill due to its high price A ball mill is a device to grinder any media Only induction motor achieves long life A motor with 2 or 4 pole pairs 1500 or 750 rpm 50 Hz with pulley drive seems to be a straightforward solution 40 5 mr byte31 View Forum Posts Private Message View Blog Entries

model drawing ball mill

ball mill 40 poles motor drawing model x 4500 ball mill catalog allanswersin used gump grinding mill model 666 model drawing ball mill hammermill with 150kw 4 pole motor ball Get Price ball mill design and drawing for ore

Mill grinding Wikipedia

Ball mills are commonly used in the manufacture of Portland cement and finer grinding stages of mineral processing one example being the Sepro tyre drive Grinding Mill Industrial ball mills can be as large as 8 5 m 28 ft in diameter with a 22 MW motor drawing approximately 0 0011 of the total world s power see List of countries by

Polysius Roller Mills For grinding

4 Advantages of Polysius roller mills at a glance xHigh operating reliability and availability as well as easy system handling due to the fact that grinding drying and separation all take place in a single compact unit xConsistently high product quality with minimum

Products Canadian Mill Equipment

Motor Electrical Motor Gear Operator s Cab Pellet Plant Equipment Planer 4 Sided Planer Double Surfacer Planer Infeed Bridges Planer Parts Components Plywood Equipment Lathe Plywood Equipment Miscellaneous Plywood Equipment Sander Portable Sawmill Post Pole Equipment Primary Breakdown Systems

Synchronous motor Wikipedia

Single phase synchronous motors such as in electric wall clocks can freely rotate in either direction unlike a shaded pole type See Shaded pole synchronous motor for how consistent starting direction is obtained The operational economics is an important parameter to address different motor

Preprint 13 050

further 40 projects worldwide energy efficient Hyper Synchronous SER drives are now mature and ready for use on 2 X 10MW dual drive mills Speed variation required is in the range of 15 of synchronous motor speeds VVVF drive packages from ABB and Siemens are also available for 2 x 10MW in low and high speed options

When it Comes to Mining Bigger is Best

been well established over the past 40 years with the benefits increasing exponentially as the mills get bigger In the GMD solution the drum of the mill forms the rotor of the motor with the motor poles mounted along the external circumference of the drum Fig 5 The stator is mounted around the pole assembly The operation is

1000 HP Synchronous Motor Electric motors amp generators

Jun 16 2004 nbsp 0183 32I have a Synchronous Motor coupled to a Ball Mill by clutch It starts uncoupled and after it synchronizes the clutch engages the load 180 coils 40 poles 1 5 coils per group 2 circuits wye Lap winding We cut out 2 coils each loed in different phases The motor work with unbalanced phases for around 40 days and did not show

Synchronous Motor for Sale DC Motors Electric Motors AC

We offer the most reliable choice for all kinds of Electric Motors Sychronous Motors DC Motors Used Motors Ball Mills Rod Mills Pebble Mills SAG Mills Mine Hoists Crushers Flotation Mixers Pumps Diesel Generators Natural Gas Generators and all the Mining Equipment you require

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2017 WEG Standard Product Catalog Motors Enclosed Motor Controls Gears and Alternators 2018 WEG Automation Catalog LV Variable Frequency Drives and Soft Starters Full Catalog 2018 2019 Power and Controls Products Catalog

China Yr3 Rolling Mill Wound Roto Motor 75kw IP54 China

Yr3 Rolling Mill Motor Wound Rotor Motor manufacturer supplier in China offering Yr3 Rolling Mill Wound Roto Motor 75kw IP54 AVR Excitation Generator 2000kw Three Phase Squirrel Cage Compact Type 560kw Induction Motor and so on