Operation of High Power Cycloconverter Fed Gearless NEIM
26 000 hp semiautogeneous SAG mill feeding three ball mills with a power of 18000 hp each The power of K Tischler and N Becker are with the Mining Technologies Siemens AG 31052 Erlangen Germany e mail typical gearless synchronous motor that is used in SAG mills The machine operates with reduced nbsp …
Id CEMTEC
Unirotor Hammer Mills for burnt lime amp Dolomite and 2x350 TPH feeder breaker for coal PSUs Since 2009 our team down allminerai in association with Siemens VAi paved its way to book an order from the Steel giant uct line being Ball Mill Rod Mill AG Mill SAG Mill pel ietizing disc Bali Mill sorting machine drier nbsp …
Gearless mill drives Mining Weekly
26 Jun 2009 Power and automation technologies solutions provider ABB and technology firm Siemens are currently the only manufacturers of GMDs in the world The largest GMD currently in opera tion is a 22 MW unit on a SAG mill in Chile Edited by Shannon de Ryhove Creamer Media Senior Deputy Editor Polity nbsp …
Availability and Reliability of Siemens 39 Gearless Drives
the SAG mill motor was a problem at start up and for some months thereafter Cadia stated in a letter to Siemens that the availability of the Gearless Drive was 98 5 during that time At the end of 1999 Cadia and Siemens installed the final solution to the problem a strong back on the stator housing designed to stiffen of nbsp …
Gearless Mill Drives Mining Industry Siemens
Siemens has provided around 80 SIMINE Gearless Mill Drives to the mining industry beginning from the year 1980 In these thirty plus years our Gearless Mill Drives have so far accumulated a combined total of over 500 years of operation time – growing even bigger as you read This is a benchmark of which we are nbsp …
Gearless Mill Drive systems for copper mine in Zambia Solwezi
Solwezi Zambia Siemens supplied Gearless Mill Drives for two SAG Semi Autogenous Grinding mills and two ball mills The two SAG mills form the core of the new Sentinel copper mine located 150 kilometers west of Solwezi in the middle of the savannah The First Quantum Minerals FQM mining company is expecting nbsp …
Downsizing for the future Minerals Engineering International
savings are achieved through the elimination of the large geared drives used on SAG and ball mills A further major benefit in either dry applications or in a ball Many Siemens mill drives have been in operation for decades While motors easily achieve this lifetime the situation with electronic controls can be different …
SAG What does SAG stand for The Free Dictionary
SAG is listed in the World 39 s largest and most authoritative dictionary database of abbreviations and acronyms sAg Surface Antigen SAG Semi Autogenous Grinding mills SAG State Advisory Group OJJDP SAG Support and Gear bicycling support transportation accompanying SAG Siemens Aktiengesellschaft …
Innovative Gear Drive Solution for Grinding Mills EMJ
29 Dec 2014 Both the SAG mill and ball mill are each driven by two gear units Because on a conventional drive variant only one engagement per pinion with the girth gear is possible per side an economic power limit of about 8 MW per drive is in effect With the DMG2 gear units Siemens said this limit expands to as nbsp …
MIPAC gets global recognition in Siemens industry magazine
7 Aug 2017 MIPAC was recognised as the Australian Siemens solution partner that was selected to design install and commission the Siemens Simatic PCS7 control system at a major African copper smelter The article emphasized the tried and tested technology as being behind the fast start up and easy operation of nbsp …
Sentinel Siemens Gearless Mill Drives YouTube
19 Jan 2016 The mills at Sentinel in Zambia are amongst the world 39 s biggest with 2 off 40 ft SAG mills complete with 28 MW drives and 2 off 28 foot ball mills with 22 MW drives For mines of this size reliable high efficiency mills are top priority Siemens Gearless Mill Drives result in reduced total costs and assure a nbsp …
sag mill Deutsch Übersetzung – Linguee Wörterbuch
Viele übersetzte Beispielsätze mit quot sag mill quot – Deutsch Englisch Wörterbuch und Suchmaschine für Millionen von Deutsch Übersetzungen …
SIMINE MILL
s Industrial Solutions and Services SIMINECIS MILL GD Completely Integrated Solutions for the Mining Industry Set new standards for productivity Your Success is Our The extreme high reliability and availability of Siemens SIMINECIS MILL Whether SAG or Ball Mill space is a sensitive subject especially in the con …
Live Webinar Austmine
2 May 2017 New Technologies Being Embraced By The Mining Sector Austmine Webinar Brad Maurice May 2017 siemens com au A few areas of Innovation in mining being looked at by Siemens Cloud based data analytics Predictive maintenance 1 SAG mill overload prediction at Lihir – only 3 months …
Integrated drive technology from Siemens enhances productivity
Siemens will be delivering two gearless mill drives Fig and water cooled Sinamics SL150 cycloconverters to meet these special Toromocho requirements In future the 36 foot SAG mill of the new production line will be operated with a 13 5 megawatt drive A further gearless mill drive with 22 megawatt output will ensure nbsp …
KCGM SAG Mill Circuit
speed Siemens electric motors each rated at 6000kW Power is supplied to the motors from a cycloconverter unit to provide a controlled speed variation of the mill Product from the SAG mill passes through internal grates onto a trommel screen which scalps 7mm material and returns it to the SAG mill feed con veyor …
Antapaccay Copper Mine Mining Technology
ThyssenKrupp Robins was awarded the contract for supplying the conveyor system It sub contracted the same to Siemens Siemens was awarded the contract to supply three grinding mills and a gearless belt conveyor system The supply included entire switchgears and gearless drive system for the SAG and ball mills …
Frozen charge detection and automatic loosening with gearless mill
controllers FROZEN CHARGE SHAKER – FIELD EXPERIENCE The SIEMENS Frozen Charge ShakerTM is presently installed at 3 operations throughout the world The installations are Rio Paracatu Mineração RPM with a 38ft 20MW SAG Mill in Brazil and Lumwana having a 38ft 18MW SAG and one 26ft 16MW Ball nbsp …
02 2010 Cover Story Commitment To Quality Download Primetals
1 Feb 2010 Extension of service contract for gearless drives by one year Minera Los Pelambres Ltda Chile FAC received for SAG mill and ball mill Minera Penasquito S A de C V Mexico Start up of second Siemens supplied SAG mill receipt of maintenance contract and Level 2 service support for gearless drives …
Ok Tedi plans for long term with SAG mill upgrades by Siemens
Ok Tedi plans for long term with SAG mill upgrades by Siemens Posted by Paul Moore on 22nd November 2017 In the island state of Papua New Guinea Ok Tedi Mining Limited OTML runs the copper and gold mine Ok Tedi OTML 39 s drive train infrastructure at the Ok Tedi mine is in excess of 30 years old In order to nbsp …
Evolution of direct coupled pinion drive technology for grinding mills
For mining operations globally the scale and criticality of the grinding mill drive has meant that selection of the correct mill drive Rotor Induction Motor Dual Pinion Mill Drives SAG Mill AG Mill Ball Mill control part of Siemens 39 standard Mill Technology Control package includes added mill functionality features nbsp …
Olympic Dam Urgent Repair Australia Winders
30 Nov 2015 After an unforseen breakdown on Olympic Dam 39 s 18Mw Siemens Svedala Mill Australian Winders were called out to site for an initial urgent inspection and diagnosis Finding mechanical and electrical December 1st 2015 Cadia Valley Newcrest noticed 2 stator coils on their 20Mw Siemens SAG nbsp …
PSP Machinery References
2015 PSP Rod mill 2 7x4 5m 52 2 t 2015 PSP Ball mill 3 6x5 7m 88 7 t 2015 FL USA Ball mill shell 18x36 feet 281 6 t Foto 2015 Andritz Hydro Upper and lower covers 4sets 70 t 2015 FL Smitdh USA Ball mill shell 15x21 5 feet 40 6 t 2015 Gebr Pfeiffer Sichtrad 4 6 t 2015 FL SAG mill shell nbsp …
SAG Mill Control It Shouldnt be that Hard WOMP
The mill the first of five to be installed at Sino has a diameter of 12 2 m 40 ft is 15 m 49 2 ft long and will be powered by a 28 MW Siemens GMD Siemens also supplied the gearless drives for a 36 ft SAG mill with a rated power of 15 MW and a 26 ft ball mill with 15 5 MW of rated power recently installed at the Minera nbsp …
Increasing availability through advanced Gearless Drive Technology
Answers for industry siemens com mining Increasing availability through advanced Gearless Drive Technology M Combes C Dirscherl T Rösch Figure 1 – Top view of SAG mills with alternative drive options left side dual pinion drive including motor gearbox pinion and girth gear right side gearless ring motor …
Control of Large Salient Pole Synchronous Machines IEEE Xplore
8 May 2015 Fig 1 Construction of a SAG mill with the stator and the rotor separately mounted Fig 2 Cross section of a SAG mill synchronous ring motor The stator is separately mounted to the basement It is fed by a load commutated cycloconverter with a power rating of typically 20 MW at a maximum fundamental …
A standard of reliability and efficiency
all over the world If the hours days months and years that all of these drives have been in operation are added up the result is well over 500 years Siemens engineers are able to draw on this experi ence for further development efforts The Gearless Mill Drives in Peñasquito 39 s 38 ft SAG mill A standard of reliability …
SAG Milling At The Fimiston Plant KCGM 2 0 0 1
This product is stockpiled as SAG mill feed on a coarse ore stockpile with a live capacity of 30 000 tonnes The SAG mill was supplied by Fuller and measures 10 97m 36 39 in diameter It is driven by two constant torque variable speed Siemens electric motors each rated at 6 000kW Power is supplied to the motors from a …
Updates on geared vs gearless drive solutions for grinding mills
been in operation for the last century The gearless drive came into the minerals industry in 1980 and as per their reference lists Siemens have approximately 60 installations and ABB have approximately 85 The reasons why these gearless drives on mills came about in the late 1970 39 s is because of SAG mills requiring nbsp …
EVENT SPONSORS Austmine 2019
Big data mine to mill study identified opportunities to optimise drill and blast to improve SAG mill performance and rail food and beverage manufacturing buildings and construction pharmaceuticals water and energy utilities and even the latest wind farms being built in South Australia all rely on Siemens technologies …
SIEMENS LTDA Mining News and Commentary MINING com
Siemens has supplied the gearless drives for a 10 9 m 15 MW SAG mill and a 7 9 m 15 5 MW ball mill at Antofagasta 39 s Los Pelambres operation in Chile The mills in operation since January are part of an expansion to increase copper production by 100 000 t y with the order worth around €16 million The nbsp …
Services EdRockMan IV LLC
Construction Superintendent Harold Young was responsible for the installation commissioning and startup of a 38 39 X 20 39 sag mill with a 44 000Hp Siemens wraparound motor and 4 24 39 X 60 39 ball mills each mill with 2 10 000 hp GE Synchronous motors and all of the process equipment which included 4 cyclones 150 39 nbsp …
SIMINE Gearless Mill Drives
Answers for industry siemens com mining SIMINE Gearless Mill Drives New standards for productivity ability of Siemens SIMINE Gearless Mill Drives is based on mature technology which we continually update with new Whether you 39 re talking about SAG or ball mill space is a sensitive subject especially in the nbsp …
model predictive control to optimize milling circuits using
Siemens gearless mill drive The SAG mill discharges over a steel trommel screen into a sump shared with the secondary ball mill Trommel screen oversize is conveyed back to the SAG mill feed chute and primary ground slurry is pumped by two variable speed MF600 Krebs MillMax pumps to twin Cyclone packs nbsp …
Allis Chalmers 13 39 x 21 39 ball mill 2000 HP Machinery amp Equipment
Description Ball Mill 13 39 Diameter X 21 39 Long Manufactured By Allis Chalmers Svedala Rubber Lined Mill With Siemens Allis 2 000 Hp 4000 Volt 200 Rpm Synchronous Motor Eaton Airflex Clutch Includes Trommel Discharge Ball Mill Rejects Conveyor Lube System Etc Offered Complete With Controls New In nbsp …
Scott Ruddle Professional Profile LinkedIn
Tony Obrien the Managing Director at Australian Winders Pty Ltd provided me with the opportunity to work on large Gearless Mill Motors GMD 39 s and power generation equipment in Australia and worldwide for companies including ABB Siemens and General Electric Projects include 2009 Complete rewind to 22MW SAG nbsp …
Brakes For Grinding Mills Ball amp Sag Mills Kor Pak
Brakes For Grinding Mills Ball amp Sag Mills Caliper Disc Brakes for Mining Applications hydraulic released caliper brakes for sag mills industrial clutch …
Conga The world 39 s first 42 foot diameter 28 MW gearless SAG mill
In 2010 Newmont made the decision to purchase a 42 foot ft Semi Autogenous Grinding SAG mill from and a 28 Mega Watt MW Gearless Mill Drive GMD from ABB for the Conga Project in Peru The test and study work showed that a single line 42 ft SAG mill circuit gave the most favorable project economics in nbsp …
Flexible Slip Energy Recovery Drive
Flexible Slip Energy Recovery Drive Alternative drive system for variable speed siemens com mining Answers for industry SAG mills and ball mills in the mining industry where an increase of efficiency and productivity is desired while availability is maintained Vertical mills Conveyors Applications with square load nbsp …
Project Development South America Region Glencore
4 Oct 2012 Xstrata Bechtel Strategic Alliance Standard Concentrator Application Other Supplier Alliances 2 Antapaccay Concentrator Antapaccay 40 ft SAG mill Las Bambas Concentrator Mass Next Alliance established with Siemens for all mill Gearless Motor Drives in Q1 2008 Expanded Alliances where nbsp …
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