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sag mill motors
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sag mill motors
Used Sag Mills for sale Hardinge equipment & more | Machinio
26 x 14 ft (79 x 42 m) SAG Mill 6,300 HP (4700 kW) Motor 26 x 14 ft (79 x 42 m) SAG Mill 6,300 HP (4700 kW) Motor Variable speed drive available at extra cost Mill includes: main drive motor Slip Ring 6,300 HP liquid resistance starter, includes variable speed dA SAG mill is usually a primary or first stage grinder SAG mills use a ball charge of 8 to 21% The largest SAG mill is 42' (128m) in diameter, powered by a 28 MW (38,000 HP) motor A SAG mill with a 44' (134m) diameter and a power of 35 MW (47,000 HP) has been designedMill (grinding) Wikipedia
Gearless mill drives Grinding | ABB
ABB’s 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, servicefriendly and fit for purpose design to provide highest throughput, reliabilityFrozen charge detection and automatic loosening with gearless mill drives (SAG Conf 2015) Mill drives: the desire for increased power and the associated limits and conditions (SAG Conf 2015) The engineering and process effects of choosing a motor design speed (SAG Conf 2015)Gearless Mill Drives | Beneficiation | Global
Sentinel: Siemens Gearless Mill Drives
Jan 19, 2016· The mills at Sentinel in Zambia are amongst the world’s biggest, with 2 off 40 ft SAG mills complete with 28 MW drives, and 2 off 28 football mills with 22 MW drives For mines of this sizeEvery mining operation has a unique grinding process minevik has experience of over 8,000 grinding mills globally, including manufacturing and delivering the largest SAG/AG mills in the world Our experts welcome the opportunity to assist you with circuit and circuit control design as well as startup, operation, and optimization of your millGrinding mills for mining and minerals processing minevik
Uneven SAG Mill Drive Power Draw Grinding
There are two GE motors for SAG mill but unfortunately sometimes current draw exceeds more than 300 A in one of them and makes SAG mill shut down I was not sure about process issues Thanks a lot :) (unknown) 4 years ago (unknown) 4 years ago Like Interested in getting update from you:Dec 19, 2014· Advantages of SER drives for SAG mills For large mills requiring variable speed, the wound rotor motor and SER drive are economical for a total rating of approximately 2MW to 16MW Above 16MW, the gearless drive (cycloconverter) is typically used because gearboxes and pinion gears reach their present limit in size I expect that thisAdvantages of SER drives for SAG mills | GoHz
THE ENGINEERING AND PROCESS EFFECTS OF CHOOSING A
The motor output torque is a major cost driver in the construction of a motor as the torque determines the loading that the motor structure must accommodate (ergo, affecting the stiffness of the motor and mill structures) Increasing the motor speed, ω, holding the power, P,Inventory ID: 6CHB02 UNUSED minevik 22' x 1025' (67m x 3m) SAG Mill with 3,300 HP (2463 kW) ABB LSS Synchronous Motor with ACS 6,000 VFD & Liners & Liner HandlerUsed Sagmills For Sale AM King
Vibration measurement on SAG mill drive motor | IEEE DataPort
Dataset Files Vibration measurement on SAG mill drive motor; You must be an IEEE Dataport Subscriber to access these files Login or subscribe now Sign up to be a Beta Tester and receive a coupon code for a free subscription to IEEE DataPort!Grinding mill machine is an essential part of many industrial processes, there are mainly five types of mills to cover more than 90% materials sizereduction applications Do you the difference between the ball mill, rod mills, SAG mill, tube mill, pebble mill? In the previous article, I made a comparison of ball mill and rod mill Today, weWhat's the Difference Between SAG Mill and Ball Mill
Grinding mills for mining and minerals processing minevik
Every mining operation has a unique grinding process minevik has experience of over 8,000 grinding mills globally, including manufacturing and delivering the largest SAG/AG mills in the world Our experts welcome the opportunity to assist you with circuit and circuit control design as well as startup, operation, and optimization of your millLocated at Kennecott Utah Copper near Salt Lake, this mill uses a ringmotor drive, Figure 5 The SAG mill is followed by two 20ft diam, 7,500hp geardriven ball millsRing gear drives huge grinding mill | Machine Design
Advantages of SER drives for SAG mills | GoHz
Dec 19, 2014· Advantages of SER drives for SAG mills For large mills requiring variable speed, the wound rotor motor and SER drive are economical for a total rating of approximately 2MW to 16MW Above 16MW, the gearless drive (cycloconverter) is typically used because gearboxes and pinion gears reach their present limit in size I expect that thisSep 10, 2014· The Collahuasi motor was for a 40 ft SAG mill The Antamina 38 ft SAG mill was also driven by an ABB motor and the hanger plates had not failed on that machine after several years of operation Similarly, the Sossego motor for the 38 ft SAG mill had not failed It too had an ABB motor and it had operated longer than the Collahuasi motorLiterature Review: Gearless Motor Failures – A Mill
Gearless Drives Siemens
Utah, SAG mill and a 11,200 kW gearless drive for the El Teniente, Chile, SAG mill In a continued call for larger, even more powerful drives, Siemens kept pace In 1996, Freeport ordered the first gearless drive for a 38foot SAG mill located at the company’s Grasberg plant inBOLIDEN ALLIS CHALMERS 73M X 274M (24' X 9') SAG MILL 3,000 HP (2,237 KW) MOTOR VIEW DETAILS 3,0005,000 TPD Iron Ore Process Plant 3,000 HP FLS Ball Mill, minevik VTM 1500, Derrick 5deck Sizers, SLon Outotec Magnetic Separators & More VIEW MORE DETAILS LOCATED IN MINNESOTA USA Affordable Proven – Experienced – Reliable MILLUsed Mining & Processing Equipment Grinding Mills
(PDF) Evaluation of synchronous motors on grinding mills
Figure 1 SAG Mill and synchronous motor The complexity and in itial cost of a low speed sy nchronous motor and VFD is offset by the simplicity in Application: 1 x 11000kW SAG Mill driven by Dual 5500kW motors, 1 x 5500kW Ball Mill Equipment: 3 x 5500kW 6 pole 11000 volt Wound Rotor Induction Motors Location: Cloncurry, Queensland West Angelas Mine Site and Cape Lambert Port Loading Facility Application: Crushers and Conveyors Equipment: 27 x 6600 Volt High Voltage Motors from 260 to 800kWMineral Processing | Toshiba International Corporation
Paper # 25 Copper Mountain Overview on the Grinding
SAG mill rated motor speed 204 rpm, max motor speed 214 rpm Ball mill rated motor speed 195 rpm, max motor speed 209 rpm Starting torque: 150% for 15 s Main voltage level where the drive system is connected: 25 kV Excitation power is provided by a 416 kV bus As the power requirements for the SAG and ball mill drives are identical and theVoltage waveform at the rectifier input side of an 18 000hp LCI SAG mill drive (a) Linetoline bus voltage waveform (11 270V peak) (b) Average rms value of the associated frequency spectrum(PDF) Technical Evaluation and Practical Experience of
Vibration measurement on SAG mill drive motor | IEEE DataPort
Dataset Files Vibration measurement on SAG mill drive motor; You must be an IEEE Dataport Subscriber to access these files Login or subscribe now Sign up to be a Beta Tester and receive a coupon code for a free subscription to IEEE DataPort!On site we have a Sag Mill Driven by a 5500KW Motor We have a vibration issue right across the Mill The highest vibration is 30mm/sec RMS axial on the motor non drive end bearing(White metal Bearing) The gear mesh frequency is 4200 CPM The dominant frequency is 2400 CPMSag Mill Syncronis Motor high axial vibration non drive
Paper # 25 Copper Mountain Overview on the Grinding
SAG mill rated motor speed 204 rpm, max motor speed 214 rpm Ball mill rated motor speed 195 rpm, max motor speed 209 rpm Starting torque: 150% for 15 s Main voltage level where the drive system is connected: 25 kV Excitation power is provided by a 416 kV bus As the power requirements for the SAG and ball mill drives are identical and thedrive application is a dualpinion SAG mill driven by two 5,000 kW wound rotor induction motors (WRIM) Two TMdrive10SPRs control motor speed by recovering rotor current and returning the power to the utility supply Confi gured in a twin motor arrangement, the motors share load in the tandem mill The Customer NeedDrive Solutions for the Global Mining Industry
What's the Difference Between SAG Mill and Ball Mill
Grinding mill machine is an essential part of many industrial processes, there are mainly five types of mills to cover more than 90% materials sizereduction applications Do you the difference between the ball mill, rod mills, SAG mill, tube mill, pebble mill? In the previous article, I made a comparison of ball mill and rod mill Today, weThe standard inching drive motor is a NEMA or IEC frame typically foot mounted to a motor scoop or base plate Typical motor speeds are either 4 or 6 pole, ie 1750 rpm or 1170 rpm for 60 Hz applications and 1450 rpm or 970 rpm for 50 Hz applications The advantage of using a four pole motor allows for a smaller footprint and a smaller brake ifSelecting Inching Drives for Mill and Kiln Applications
Mineral Processing | Toshiba International Corporation
Application: 1 x 11000kW SAG Mill driven by Dual 5500kW motors, 1 x 5500kW Ball Mill Equipment: 3 x 5500kW 6 pole 11000 volt Wound Rotor Induction Motors Location: Cloncurry, Queensland West Angelas Mine Site and Cape Lambert Port Loading Facility Application: Crushers and Conveyors Equipment: 27 x 6600 Volt High Voltage Motors from 260 to 800kWUtah, SAG mill and a 11,200 kW gearless drive for the El Teniente, Chile, SAG mill In a continued call for larger, even more powerful drives, Siemens kept pace In 1996, Freeport ordered the first gearless drive for a 38foot SAG mill located at the company’s Grasberg plant inGearless Drives Siemens
CONGA: THE WORLD’S FIRST 42 FOOT DIAMETER 28 MW
SAG mill, 40 ft, 42 ft, gearless mill drive, GMD, SAG manufacture, reliability THE PROJECT The Conga Project is located in Peru adjacent to Newmont’s existing Yanacocha operations The Conga Project has been in various development stages for approximately the last 15 years In the last 5Jun 06, 2019· “The motor on our SAG mill is the fascinating part for me,” Hope said “The mill is its own motor,” Tucker explained “The mill is what would be considered the rotor in a motorPhoenix: Big mill and latest tech keep longlived mine
(PDF) Technical Evaluation and Practical Experience of
Voltage waveform at the rectifier input side of an 18 000hp LCI SAG mill drive (a) Linetoline bus voltage waveform (11 270V peak) (b) Average rms value of the associated frequency spectrumGearless mill drive (GMD) technology has further expanded the use of large SAG milling allowing minevik to produce the world's largest SAG mill of 42’ in diameter drawing power at 28 MW Today, minevik is the world leading supplier of gearless SAG mills operating globallySAG mills (semiautogenous grinding mills) minevik
gearless ring motor for sag mill principles MC Machinery
Gearless Warp Around SAG Mill Metallurgist Mineral Gearless Warp Around SAG Mill Previous Next View Larger Image; For almost a decade now, very good operating experiences have been gained with a total of 28 gearless ring motor drives in the cement industry, driving tube mills with diameters of 25 to 4 meters with drive powers ranging from 3000 to about 5000kWAn inching drive is used as an auxiliary system to the main drive for a large machine such as a ball mill, industrial kiln, conveyor, or elevator Its purpose is to turn the equipment at a speed slower than the normal operating speed — typically 1 to 2 rpm, although fractional rpms are also common — and to do so at high torque — typicallyWhat is an inching drive? Motion Control Tips
