Ball Mill

Ball Mill

Ball mills are used primary for single stage fine grinding, regrinding, and as the second stage in two stage grinding circuits.…

Belt Conveyor

Belt Conveyor

TRS delivers the world’s most comprehensive range of Heavy-duty conveyor belts. Base on more than 30 years of experience…

CS Cone Crusher

CS Cone Crusher

Comparing with other kinds of crushers, CS Series spring cone crusher is quite excellent in hard material crushing and the…

Flotation Machine

Flotation Machine

With the development of mining industry, investors present various requirements of the features of flotation machine. Now…

Hammer Crusher

Hammer Crusher

Hammer crusher designed by TRS fits for producing 0-3MM coarse powder products. This machine adopts theories of traditional…

Frozen charge detection and automatic loosening with

Frozen charge detection and automatic loosening with

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

2009 Gearless Mill Drives - CB MUA

2009 Gearless Mill Drives - CB MUA

Siemens the company that introduced Gearless Mill Drives GMD to mining industry started up its first GMD on a ball mill in Norway in 1980 The mill and its drive system are still in service Today GMDs are mainly used for SAG mills between 36 and 40 feet 10 7 to 12 2 m and ball …

Gearless mill drive images - ABB Group

Gearless mill drive images - ABB Group

The mill used for this comparison is a 4 4-meter diameter by 13 6 meter long ball mill with a 5000 HP drive motor It is designed for approximately 90 s ton per hour This type two-compartment mill is a state- of-the-art shell supported cement finish mill The torque and time requirements of the mill with the ball

Gearless Mill Drive Sales Rev Up to Meet Demand

Gearless Mill Drive Sales Rev Up to Meet Demand

Significant energy and cost economies can be achieved with a gearless mill drive working with a ball mill in these upper power ranges This prospect should also be of interest to the cement industry The technology is available for an up-sizing of cement grinding installations and the gearless mill drive is a proven reliable drive

Increasing Availability through Advanced Gearless Drive

Increasing Availability through Advanced Gearless Drive

geared vs gearless drive solutions for grinding mills Gearless mill drives - Grinding ABB ABBs GMD is the most powerful mill drive system in the market to power semiautogenous SAG ball and autogenous AG mills This workhorse for grinding operations combines a robust service-friendly and fit for purpose design to provide highest throughput

Sag And Ball Mill Drive Failures - antwerpsehavenpijl be

Sag And Ball Mill Drive Failures - antwerpsehavenpijl be

relying on the robust Gearless Mill Drive GMD solution This paper describes the new features introduced with the revolutionary ABB drive controller for Gearless Mills and explains the benefits this can bring to the operation Extensive surveys have been performed with GMD users to gather suggestions and understand the market wishes

Gearless Warp Around SAG Mill - 911metallurgist com

Gearless Warp Around SAG Mill - 911metallurgist com

conventional mill drive system such as ring gear pinion gearbox coupling or air clutch motor shaft and motor bearings Eliminating such components significantly increases the efficiency and the availability of the mill The gearless motor is fed by a cyclo-converter which lets the operator easily vary the mill s operating speed

Gearless Mill Drive - How is Gearless Mill Drive abbreviated

Gearless Mill Drive - How is Gearless Mill Drive abbreviated

Baden Switzerland March 29 2012 ABB the leading power and automation technology group was recently contracted to supply gearless mill drives GMDs for six ball mills and twin-drive systems for eight high pressure grinding rolls HPGRs at Cerro Verde copper mine in Peru The two contracts were awarded in the first quarter of 2012

geared vs gearless drive solutions for grinding mills

geared vs gearless drive solutions for grinding mills

Farnell-Thompson- gearless ball mills Working as a member of the FFE Minerals team Farnell-Thompson performed the conceptual engineered design calculations and major component design for the 38 gearless SAG mill and three 25 gearless ball mills constituting a major Gearless drive systems for belt conveyor and grinding mills - Siemens18 Feb 2013 The Siemens scope of supply includes

Gearless mill drives - Grinding ABB

Gearless mill drives - Grinding ABB

Gearless Mill Drive Sales Rev Up to Meet Demand By Russell A Carter Managing Editor Gearless mill drives are becoming the drive system of choice on large AG SAG and ball mill installations for new projects and existing mill expansions At least 31 GMDs have been ordered from Siemens and ABB for …

BALL MILL DRIVE MOTOR CHOICES - artec-machine com

BALL MILL DRIVE MOTOR CHOICES - artec-machine com

Siemens gearless drive technology of 99 46 to 99 71 - as confirmed by real operational data from the Antapaccay mine in Peru It was the first plant worldwide to use gearless drives for both applications KEYWORDS Gearless Mill Drives Gearless Conveyor Drives Availability SAG Mill Ball Mill Overland Conveyor Antapaccay 15

gearless ball mill images - rajcaterers co in

gearless ball mill images - rajcaterers co in

Two 18 6MW GMD systems for 27-foot ball mills at Esperanza copper mine Chile 01126974 2 jpg 8605 kB 22 4MW GMD system for a 40-foot semi-autogenous SAG mill at Esperanza copper mine Chile Gearless mill drive jpg 9609 kB 22 5MW GMD system for a 38-foot autogenous AG grinding mill at Boliden Aitik mine Sweden

SIMINE Gearless mill drives - assets new siemens com

SIMINE Gearless mill drives - assets new siemens com

Gearless mill drives The ABB gearless mill drive GMD is the most powerful mill drive system on the market It combines highest efficiency reliability flexibility and availability at competitive cost In the GMD concept the mill becomes the rotor of a synchro-nous motor The torque is transmitted through the magnetic field between

Ring-geared mill drives - Grinding ABB

Ring-geared mill drives - Grinding ABB

A gearless synchronous direct drive of the wrap-around design was selected instead offering several inherent advantages to the owners and operators The new mill with 10x the rated capacity could be installed in place of the old obsolete 100tph mill without disturbing the remaining 13 mills

ABB wins major grinding drive systems order for Cerro

ABB wins major grinding drive systems order for Cerro

GMD - Gearless Mill Drive Looking for abbreviations of GMD It is Gearless Mill Drive Gearless Mill Drive listed as GMD Gearless Mill Drive - How is Gearless Mill Drive abbreviated curves the influence of slurry theology on stirred media milling of limestone the selection of mill liners the gearless mill drive and ball mill circuit

15000 HP gearless ball mill drive in cement-why not

15000 HP gearless ball mill drive in cement-why not

With the proven use of gearless drive technology the limitation of AG SAG mill size due to gearing constraints has been eliminated is the world s leading images of working of ball mill images of working of ball millThe Easiest Way to Make Black Powder You may also choose to use a ball mill If this is the case The ingredients you are

Increasing Availability through Advanced Gearless Drive

Increasing Availability through Advanced Gearless Drive

Whether you re talking about SAG or ball mill space is a sensitive subject especially in the concentrator That s why we always design our SIMINE MILL Gearless Drives to combine maximum performance with limited space requirements Suitable foundation and adequate ground conditions Since our solutions have a low motor weight this notice-

Gearless mill drive images - ABB Group

Gearless mill drive images - ABB Group

Table of ContentsStructural Design of Mill and BearingsStructural Design of the BearingOperational ResultsMaintenance of Gearless Drive Mill The reliability of large diameter high horsepower ball mill is paramount when large production and minimum downtime is required The 17 ft x 56 ft double compartment ball mill at St Lawrence Cement Company has the first gearless drive built in

gearless ball mill drive - keuken310 nl

gearless ball mill drive - keuken310 nl

Two 18 6MW GMD systems for 27-foot ball mills at Esperanza copper mine Chile 01126974 2 jpg 8605 kB 22 4MW GMD system for a 40-foot semi-autogenous SAG mill at Esperanza copper mine Chile Gearless mill drive jpg 9609 kB 22 5MW GMD system for a 38-foot autogenous AG grinding mill at Boliden Aitik mine Sweden

gearless ball mills - loof-amsterdam nl

gearless ball mills - loof-amsterdam nl

Wide offering Our comprehensive line of grinding mills spare and wear parts as well as maintenance and optimization services provide reliable and energy efficient technology and solutions across wet dry horizontal and vertical grinding operations

Preprint 13-050 - ceecthefuture org

Preprint 13-050 - ceecthefuture org

Presently the gearless drive is more costly than the complete mechanical portion mill rotating element and accessories supplied by the mill manufacturers and hence the customer consultant needs to have two parties to deal with from the start of any project There is an interface between the mill vendor and the gearless motor supplier

GMD technology for Minera Escondida - Mineral Processing

GMD technology for Minera Escondida - Mineral Processing

Gearless mill drives go gearless the gearless mill drive eliminates all mechanical components of a conven tional mill drive ball mill drives process advantages mining congress leandro the capability of the reasons why these gearless drives on mills came about in the late Gearless mill drive what does gmd stand Get Price

siemens com mining SIMINE Gearless Mill Drives

siemens com mining SIMINE Gearless Mill Drives

gearless ball mill drive Grinding Mill China Hydraulic Ball Mill Drive hydraulic ball mill drive Description Gearless Direct Hydraulic Drive Apron Feeders Gearless Direct Hydraulic Drive Apron Feeders Ball Mills who is the largest supplier of mining equipment in china Geared Vs Gearless Drive …

Grinding mills Energy efficient solutions to maximize

Grinding mills Energy efficient solutions to maximize

further Gearless Mill Drives with FCS are presently being erected or are in fabrication phase Los Bronces suffered a Frozen Charge in their expansion plant Confluencia on 10th September 2012 at its Ball Mill No 2 By applying the Frozen Charge ShakerTM with the described procedure in …

2009 Gearless Mill Drives - CB MUA

2009 Gearless Mill Drives - CB MUA

SIMINE Gearless mill drives outstanding reliability for your mine The gearless concept The gearless drive avoids any contact between the rotating mill and the static parts of the motor This allows for contin-uous workflow without maintenance on the gears …

Gearless Ball Mill Operation - 911metallurgist com

Gearless Ball Mill Operation - 911metallurgist com

Collahuasi Sag Mill Failure Gearless mill drive protection improvements and its abb laguna seca concentrator uses a sag mill and three ball mills Snubber network system and failed thyristors detection thus the sag mill motor has 72 Get Price Cement Ball Mill Failures