This puts the application in the realm of dual motor, dual pinion installations. xPower demand of 16 – 28 MW. ... The SAG mill model in the JKSimMet software has not been shown to accurately reproduce the performance of a single stage mill for greenfield design. A review of most modern power models shows that the prediction of
Get Quote
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. Confi gured in a twin motor arrangement, the motors share load in the tandem mill. The Customer Need
Get Quote
UNUSED FL 36' X 24′ (11M X 7.3M) DUAL PINION SAG MILL WITH 2 ABB 9,000 KW (12,069 HP) VFD MOTORS FOR TOTAL POWER OF 18,000 KW (24,138 HP) Category: Sag Mills Item #: 6C-HMG03 ... UNUSED 36′ X 20.5′ (11M X 6M) SAG MILL, 15,000 KW (20,107 HP) GEARLESS MOTOR DRIVE, 50 HZ. Category: Sag Mills …
Get Quote
Figure 2.6 Typical motor-starting voltage sag . Autotransformer starters have two autotransformers connected in open delta. Taps provide a motor voltage of 80,65, or 50percent of system voltage during start-up. ... Part-winding starters are attractive for use with dual-rated motors (220/440 V or . 230/460 V). The stator of a dual-rated motor ...
Get Quote
Table 1 includes the technical data for the Copper Mountain SAG mill. Table 1 - general SAG mill data Specification Data Mill size 10.363 M [34 feet] diameter by 6.096 M [20 feet] long Mill type Wet grinding, grate discharge Mill drive motor size 17,000 HP Mill drive motor type Synchronous 200 RPM Inside diameter 10,363 mm Length 6,096 mm
Get Quote
This puts the application in the realm of dual motor, dual pinion installations. xPower demand of 16 – 28 MW. This puts the application in the realm of a single mill with …
Get Quote
This paper will first give a short overview of the Copper Mountain project in British Columbia, which just has started commercial operation earlier this year. The grinding process with one 34' x 20' SAG mill and two 24' x 39.5' ball mills will be briefly discussed. All three mills are gear driven by a ring gear, dual pinion and two low speed ...
Get Quote
Mill application features. Frozen charge protection – Detects frozen charge in the mill, minimizing equipment wear and liner replacements.; Coupling supervision – Detects if a failure or slippage occurs in the couplings and stops the system in case, preventing major damages.; Stand-still detection – Prevents the motors from re-starting if the mill is still …
Get Quote
22 ft x 7 ft (7 x 2 m) Hardinge SAG Mills, - Motor Quoted separately, - Previously ran on two 800 HP motors, - Dual Flender gearboxes, - Shell reconditioned. View ... (13,410 HP) fixed speed dual motor-gearbox-pinion drive. Designed as an overflow ball mill with rubber liners. Includes lube systems, feed chute, jack cradles, currently less ...
Get Quote
Induction motors For ball and SAG/AG mills with single or dual pinion configuration, Slip Ring Motors drive the gearboxes and are normally used when fixed speed and low starting current are required. WEG Induction Motors (Master Line) are designed with air cooling system (totally enclosed air-air cooling) or water
Get Quote
Advanced Process Control Systems. With systems, there is an assumption that any issues in the plant's control system will be resolved once the system is installed. However, if the in-place base layer control is operating poorly, the system is not effective at maintaining the operational targets. Any variability created from the base ...
Get Quote
Paper held at SAG Conference 2011 - By S. Gaulocher (ABB), K.S. Stadler (ABB), Th. von Hoff (ABB), R. Veldsman (ABB), A. Fuerst (ABB) and J. Koponen (ABB): Gearless mill drives (GMDs) are the workhorse in the mineral processing industries, more specifically when it comes to grinding crushed ore and cement (in various production stages) in …
Get Quote
dual pinion sag mills – Gold Ore Crusher. 22' x 36.5' Our Company ball mills, (2) dual pinion synch 4650 KW mtrs. CONSTRUCTION & MINING EQUIPMENT BALL, PEBBLE, SAG MILLS, MINING 22' x 36.5' Our Company ball ….
Get Quote
Search through huge mining inventory of used Ball mills, Sag mills, Pebble mills, grinder mills for sale today and ready for shipping! ... 5' x 3' (1.5m x 0.9m) SAG Mill with 20 HP (15 kW) motor. View Details Contact Seller Request Price. Expand. 10 Photos. ... - Eaton Airflex 28VC650 dual narrow air clutch, Falk parallel shaft gear reducer ...
Get Quote
Mill motor gear drives can be offered for AG/SAG grinding mill as dual pinion drives with power deliver of up to 20 MW (2 x 10,000 kW), and this can be accomplished on mill sizes up to 36 ft in diameter Gearless mill drive (GMD) technology has further expanded the use of large AG/SAG milling allowing to produce the world's largest SAG.
Get Quote
When mill power is between 18 and 20 MW, which is the current manufacturing limit of ring geared mills [2], either a gearless mill drive (GMD) or a ring geared mill with dual pinion motors can be ...
Get Quote
With our SAG mill running at 65.4% critical speed (mill @ 8.7 RPM), the SER motor speed reference is 850 RPM or 85% of 1000 RPM. We are recovering approximately 1.2 MW of slip energy; the power ...
Get Quote
SAG mill and two 26 ft ball mills, all made by . The drive systems that enable the mills to operate at benchmark levels of reliability, efficiency and availability were made by ABB, whose solution comprises a 23.5 MW gearless mill drive (GMD) for the SAG mill, and two 13 MW low-speed dual-pinion ring-geared mill drive (RMD) systems for the ...
Get Quote
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: Declining ore grades, leading to increased material transport and …
Get Quote
This gap becomes wider with increased pole pair construction and lower base speeds. Synchronous motors ope rate with higher efficiency, lower curre nts due to high P F and have usa ble low speed ...
Get Quote
installed power to maximise net present value. The use of a dual SAG mill arrangement in a cost effective layout added substantial value to the project by increasing both initial and post Year 6 plant throughput for a modest increase in project capital cost when compared with the DFS case of a single 21.5 MW Gearless Motor Drive (GMD) SAG mill.
Get Quote
Conventional mining process circuits use both Semi-Autogenous Grinding (SAG) and Ball mills. It is very common that the SAG mills are operated with adjustable frequency drives (AFDs) and the Ball mills are operated at fixed speed [1]. Recently, however, adjustability of Ball mill speed has been given more consideration. Also, to maximize throughput, the …
Get Quote
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 …
Get Quote
SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also 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%. [6] [7] The largest SAG mill is 42′ (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor. [8] A SAG mill with a 44 ...
Get Quote
With successful operation of 2 x 6.5MW (Phu Kham, Laos) and three 2 x 7MW units under manufacture (Pascu Lama) and a 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.
Get Quote
(EGL) SAG mill driven by a 24,000 kW gearless drive. The SAG mill feeds two FL ball mills each 26 ft. in diameter × 40 ft. long (EGL), each driven by a 16,400 kW drive. The SAG mill is one of the largest volumetric capacity SAG mills in the world and represented the first 40 ft. SAG mill in Peru (Garcia & Villanueva, 2013 [1]).
Get Quote
Conga: The world's first 42-foot diameter 28 MW gearless SAG mill ( en - pdf - Technical publication ) Copper Mountain: Overview on the grinding mills and their dual pinion mill …
Get Quote
dual pinion sag mill vs single pinion sag mill motor, twin pinion or dual motor and pinion installation twin pinion single drive mill Get Prices Live Chat. 【Live Chat Support】 Mill (grinding) 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, SAG mills are primarily used at gold.
Get Quote
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.
Get Quote