The products are part of an important order for electric motor drives for eighteen ball mills and semi-autogenous grinding SAG mills with dual and single pinions. Autogenous grinding means that the mining ore essentially grinds itself. Such ball mills are used for grinding and crushing mining ore within a large rotating drum.
1 x Metso SAG Mill amp Siemens Motor For SaleRe-Assignment Mill Details Type of Mill Metso SAG Mill Mill Dimensions 11,582 mm x 7,759 mm 38 x 26 D x L Default Mill Speed 7.5-8.0 RPM Mill Speed 7.56-10.08 RPM Liners Excluded Mill Drive Motor Type Wrap Around included Mill Drive Motor Size 19,400 KW 26,016 hp Variable Speed Drive Yes Max.
You must manually check the motors tent diagram to confirm that the predicted power draw is actually within the motors capability at the indicated speed. Liner and grate design. The design of mill liners and SAG mill discharge grates will have a large effect on how efficiently the mill
10.5 ft x 14 ft Marcy Ball Mill with 800hp GE Synchronous Motor, 1200rpm, 4160v, 60 cycle, starter included 5 KV air breaker style, Pinion and clutch driven by a Falk Gearbox, single helical pinion, trunnion sole plates, Eaton Airflex Clutch 28VC 650 dual bladder, NO LINERS, trunnion bearings inserts, trunnion beraings housing, trunnion ...
SAG mill. SAG is an acronym for Semi-Autogenous Grinding. SAG mills are autogenous mills but use grinding balls like a ball mill. A 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 12.8m in diameter, powered by a 28 MW 38,000 HP motor.
The company stand behind their product 100 and are proud of their top quality, versatile and efficient mills. Since the invention of the swingblade mill by Peterson Portable Sawmills, many people have tried to replicate the technology. The ease of use, the amazing versatility and the machines portability all make Petersons swingblade the ...
Oct 05, 2010 Metso has been selected to design and supply a 42ft x 25ft, 12.8m x 7.6m 28MW gearless SAG mill, plus two 26ft x 42ft, 7.9m x 12.8m 15.6MW ball mills and two VTM-1500-WB VERTIMILLS for Newmont Minings Yanacocha Conga copper-gold project in Peru. The 42ft diameter SAG mill is the worlds largest and the first of its kind.
mill gear in normal running mode P millmotor is the actual power of the main drive motor or 2 x main drive motor for dual pinion drives. The power computed above is considered P inch N oinch P millmotor N omill
Application Ball Mill Equipment 1 x 44000kW 30 pole 6600 volt Synchronous Motor Location Kalgoorlie, Western Australia Ernest Henry Mine 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
Show details of benchmarking. Benchmarking BondBarratt SAG Mill Specific Energy Consumption - Detour Lake. J. Torrealba-Vargas, J.-F. Dupont, J. McMullen, A. Allaire and R. Welyhorsky, The successful development of the detour lake grinding circuit from testwork to production.Proceedings of the SAG 2015 Conference, September 2015, Vancouver, Canada, Paper 38.
20 EGL SAG mill, a Raptor 900 pebble crusher and two 24 x 396 ball mills. Each mill is equipped with a 2 x 8500HP dual pinion drive system. The plant was designed to process 1585 h mtpof SAG feed. From startup, the mill struggled to meet the required production rates. Over time, a
Aug 16, 2021 Metso Outotec says it will deliver a high-capacity, high-powered Premier SAG mill to Northern Star Resources Limiteds Thunderbox gold mine expansion project in Western Australia. The typical value of such a delivery is approximately 15 million 17.7 million depending on the final scope, according to the OEM.
Nov 02, 2015 Metso explained that in the past, grinding mills operating between 18MW and 28MW required a large electrical wrap-around motor, known as a gearless mill drive GMD. The Metso QdX4 mill drive system is an alternative option to the GMD. Until now, the gear-driven solution for large SAG and ball mills was limited to 18MW.
vertical mill gear dual pinion Grinding Mill China. Ring-geared mill drives Single and dual pinion ABB Download designed for single and dual pinion mills depending on the customer We know the operated More detailed
drive application is a dual-pinion SAG mill driven by two 5,000 kW wound rotor induction motors WRIM. Two TMdrive-10SPRs control motor speed by recovering rotor current and returning the power to the utility supply. Con gured in a twin motor arrangement, the motors share load in the tandem mill
SAG mill motors have been upgraded to total 13.8 MW by adding cooling to drive transformers 6.9 MW per motor. SAG mill operating with 17 vv ball charge and 27 to 28 vv total filling SAG mill operating typically 10.2 RPM. Ball mills operating 34 to 35 vv total filling Circuit P 80 150 m was 180 m before SAG motor upgrade
Designed for the single or dual motor Semi-Autogenous Grinding SAG mill market, this new technology addresses all mechanical, electrical, environmental and cost concerns. Delivering unmatched SAG Mill speed and power. Sub and hyper synchronous mill motor speed control is offered without speed deadband.
Feb 06, 2014 ONTARIO ABB, the leading power and automation technology group, has commissioned an upgrade to Vales existing Clarabelle dual pinion semi-autogenous SAG mill.The project was completed on-time and on-budget with an excellent safety record. The Clarabelle mill beneficiates nickel-copper ore from various sources and companies and to produce a nickel-copper
17 x 21.8 Morgardshammar 5.2m x 6.6m Egl Sag Mill With 1, 800 KW 2413 HP Motor, 4160 Volts, 1190 Rpm A M King Industries Oroville, CA Albert King 530-53...
The Critical Speed for a grinding mill is defined as the rotational speed where centrifugal forces equal gravitational forces at the mill shells inside surface. This is the rotational speed where balls will not fall away from the mills shell. Result 1 This mill would need to spin at RPM to be at 100 critical speed. Result 2 This mills ...
Sag Mill Motor Stator. Sag mill sag is an acronym for semiautogenous grinding and applies to mills that utilize steel balls in addition to large rocks for grinding the sag mills use a minimal ball charge of 6 to 15 a rotating drum throws large rocks and steel balls in a cataracting motion which causes impact breakage of
Nov 03, 2016 Relining professionals are the NASCAR pit crews of mill relining. The relining of mills is a necessary process and it is very often the critical maintenance path of a concentrator shut down. Generally speaking, and depending on current ore prices, the production of a large SAG mill usually equates to between US30,000 and US200,000 per hour.
Aug 10, 2020 The motor will be attached to the belt which will cause the cylinder, or drum, to rotate. Attach the motor in the center of the platform about 1 inch from the left side. The motor should only fit into the mount in one position. Position the motor in the mount and screw one side of the mount in place.
Mar 07, 2021 The motors are being applied in pairs to SAG and ball mills that operate through dual pinion drives supplying power to each mill. Historically, WEG says the customer was facing problems for a number of different reasons such as mechanical fits,
SAG mill drives as GMDs by some operators and principal motor designersmanufacturers until the reasons for known problems in design or manufacturing were better understood and resolved. Accordingly, the latest 40 ft dia. SAG mill is rated at 29 MW and 78 C.S., with a 42 ft dia. mill built but not yet operational. The more recent option
Inventory ID 6C-HM03. UNUSED FLSMIDTH 36 x 24 Dual Pinion SAG Mill with 2 ABB 9,000 kW 12,069 HP Motors for Total Power of 18,000 kW 24,138 HP
number of the largest SAG mills designed are installed in single stage configuration. This paper discusses the ... This puts the application in the realm of dual motor, dual pinion installations. xPower demand of 16 ... capacity is too high for a single SAG mill, a two stage grinding or alternate circuit is generally recommended. 4
part inventory. If required, ring motor drives can be fitted to shell-supported grinding mills up to the largest sizes. SAGball mill circuit incorporating pebble crushers and a POLYCOM high-pressure grinding roll. SAG and ball mill for gold ore grinding. One of three SAG mills with 9.75 m diameter and 2 x 4000 kW drive power. These mills
An electric motor asynchronous or synchronous machine, ... General overview of the high speed and low speed drive system solutions for gear driven mills single or dual pinion Ingeteam. ... The breakage rate function shape of the SAG mill is largely governed by the mill load particle size
It is situated near the Newmont Yanacocha gold mine, where Metso installed what was then the worlds largest single-stage SAG mill, a 32 x 32-ft 9.75 x 9.75-m EGL mill, driven by a 16.5-MW ABB gearless motor, in 2008. That mill design was also the first of its kind and was customized for Newmont.
Motor behavior during normal operation with a loaded mill The result is the design of a Gearless Mill Drive motor for a 42ft Grinding Mill providing up to 35MW of power. Evolution is still the main GMD design philosophy, but realistic and proven computer models help to look beyond experience, where testing is impossible.
Aug 15, 2021 The SIMINE Gearless mill drives pump system significantly enhances concentrator productivity by eliminating the reducer gear between motor and pump and all corresponding maintenance. In addition, the cyclone pumps with variable speed can adjust their energy consumption to the optimized flow of pulp, resulting in energy savings of up to 30. The ...
Sag Mill Synchronous Motors. Prompt Caesar is a famous mining equipment manufacturer well-known both at home and abroad, major in producing stone crushing equipment, mineral separation equipment, limestone grinding equipment, etc. large synchronous motor. The poles of ... stage mill no ball mill after the SAG mill and has a diameter and ...
The PSD from multiple revolutions of AGSAG mill surface vibration data has been shown to be a good bulk spectroscopic inferential measure particularly in terms of frequency band power of what ...
Feb 21, 2013 To date, this is the largest hydraulic motor installed on a SAG mill, with 950kW of power, torque of 1200 kN.m start-up and 650 kN.m operational, and speed of 13.86 rpm, said Van Der Walt.