Dec 06, 2011 GMD system SAG mill. Slip Energy Recovery Drives. These drive systems use slip ring motors and are started similarly using starting resistors, thereby limiting the inrush current. To adjust the speed the slip resistance needs to be changed accordingly. This can be achieved by inserting resistance in the rotor circuit and dissipating this energy ...
Gearless mill drive GMD technology has further expanded the use of large SAG milling allowing Metso Outotec to produce the worlds largest SAG mill of 42 in diameter drawing power at 28 MW. Today, Metso Outotec is the world leading supplier of gearless SAG mills operating globally.
Description. The CSE Uniserve Rotor Drive Slip Energy Recovery System SER is designed for reliable and repeatable mill starting and speed control and to return all unused energy into circuit below when operating 100 speed. It exclusively offers operators full torque at hyper synchronous speeds. Typical applications include mills, crushers, fans and pumps.
New 6500 kW SER Drive for a SAG mill finishes the FAT at ElectroDrives premises. Last February we successfully completed in our Madrid plant the FAT of a new SER Drive Slip Energy Recovery Drive for a 6500kW SAG mill. This drive will allow the mill to operate at variable speed, increasing the efficiency of the grinding process.
Sep 21, 2012 The mill will be driven by a Gearless Motor Drive GMD which at 28.0MW is equal to the largest grinding mill power ever used in the mining industry. The SAG mill design is based on Outotecs proprietary grinding mill technology, developed over decades for maximum reliability and performance.
This gold mine installed Mill Safe Start Systems on both their Ball and Sag mills. The Sag mill switches over to a Slip Energy Recovery Drive after start-up. Media Gallery. Play. Play. Previous. Next. Go Back to All Projects. Menu Links.
When mill diameter and mill power became again increased, only the Gearless Mill Drive GMD could be envisaged to cover this requirement above 10 MW. The GMD is by its nature a variable speed drive system. Process operators, once having the facility of adjustable speed, could not live anymore without it for SAG mills.
Slip power is recovered and fed back to power system, saving energy This ore processing facility in Papua New Guinea can process up to 4.7 million tons of ore per year. The variable frequency drive application is a dual-pinion SAG mill driven by two 5,000 kW
GMD SAG mills have bee n sold in sizes from 8,20 0 kW 11,000 HP through 28,000 kW, 37,548 HP. The first SAG mill to utilize a GMD motor design were the two 32 x 17 1 5 EGL - 8,2 00 kW
Specialties. Power Electronics, SER Drive Slip Energy Recovery, LRS Liquid Resistor Starter, Doubly Fed, Power Converter, Medium Voltage Drives, Mini-Hydro Generation, SAG and Ball Mills ...
Ball mill motor power Manufacturer Of High end Mining . Ball mill power page of ball mill power dear experts we have a ball mill in bi mode for cement grinding roller press before the ball mill the supplier has given grinding media filling , with shaft power kw only ball mill size is m grinding media size is max mm it is a monochamber mill designed to grind the roller press product
Typical Load Factor For Sag Mill Motor Typical Load Factor For Sag Mill Motor. Choosing a SAG Mill to Achieve Design Performance - Starkey ... To summarize t
Install, repair and troubleshoot Slip Energy Recovery S.E.R, Sag Ball Mills, Filter press, Paste back-fill, Gensets controls. Have a basic knowledge and troubleshooting skills of Programmable Logic ControllersP.L.C, Varriable Frequency DriveV.F.D Install, repair
Last week we successfully completed in our Madrid plant the FAT of a new SER Drive Slip Energy Recovery Drive for a 6500kW SAG mill. The project Recomendado por Joaqu n Romero Prada
high-speed, geared mill applications, we offer a variety of innovative and differentiating technology to suit the budget, including drives for slip energy recovery systems. These enable speed and process adjustment for mills using wr IM technology. Our mill Master Sequence Control MSC has many automation embedded software features
Slip Energy Recovery Systems Soft Starters Dual Load Sharing, Running Duty, or Starting Duty Secondary Resistance Controllers A variety of enclosure options are available to provide protection to your motor investment. Our wide selection allows you to choose the one that best meets your unique needs ODP Open Drip Proof IP 12
Single stage SAG Mills are very beneficial in reducing CAPEX for plants with a staged throughput approach. When future tonnage is to be increased, the SAG Mill can feed downstream ball milling to boost capacity. Fuller-Traylor SAGAG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28,000 kW.
Technical and Commercial Benefits of Gearless Mill Drives for Grinding Applications - Free download as PDF File .pdf, Text File .txt or read online for free. Technical and Commercial Benefits of Gearless Mill Drives for Grinding Applications
A cycloconverter can be programmed to generate variable-frequency variable-voltage to drive an induction motor. It can also be used in the rotor circuit of a slipring motor for slip-energy recovery, as described below. The output frequency is limited to approximately 40 of its input frequency to maintain an acceptable waveform.
- 4 - Glossary . Mining Terms and Frequently Used Abbreviations. AA atomic absorption.. AISC all-in sustaining cost. Base Case base case mine plan. Bond Ball Mill Work Index is a measure of the resistance of the material to grinding in a ball mill.It can be used to determine the grinding power required for a given throughput of material under ball mill grinding conditions.
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.
2. To study the energy recovery systems and braking of a DC drive. 3. To study the braking methods of a three-phase induction motor. 4. To study the performance of VSI fed three-phase induction motor using PWM technique. 5. To control the speed of a three phase slip
These included power-generation projects in Angola and the DRC as well as working on a project to solve a major vibration problem on a SAG Mill in the DRC, which also led to the investigation of the operation of the Slip Energy Recovery drive.
3250kw motors for ball mills and sag mills at the milling section 450KW slurry pump motors ... Slip Energy Recovery Drives ABB VSDs and ABB VFDs and SOFT starters
May 02, 2017 Dear all, I am Graduate Control System Engineer for a processing mining plant at the moment as my background is Electrical Engineering. here weve got a SAG mill that its speed is being controlled by Slip ring Energy Recovery SER system with the motor speed range is 85-105. my question is how the SER adjust the speed in this range which parameter perform to rotor to revolving
Rotor Drive Slip Energy Recovery QLD SAG Mill sub and hyper synchronous speed control and starting with Unistarter LRS. Water Fuji LV Drives QLD Specified drives due to ongoing reliability and locally-based service and support. Mining Rotor Drive Slip Energy Recovery QLD Pump drive and energy recovery. Mining Transformers QLD
Request PDF Case History Innovative Milling Operation of Stuck Wellhead Tubing Master Valve using Coiled Tubing at South Ghawar Field Saudi Arabia Milling a stuck partially opened wellhead ...
For SAG Milling, optimizing the throw and converting the available electrical energy installed motor power to potential energy height of throw, trajectory to kinetic energy rock breakage is the key function. Therefore, having a speed range available allows this tuning of the SAG mill.
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grinding SAG mill with gearless mill drive GMD to increase the existing plant capacity from 8 ktd to 12 ktd. This expansion has been sized to accommodate the proposed Phase 2. Phase 1 also includes the addition of three leach tanks, new tailings facility capacity, new process water pond and upgrades to some reagents areas.
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Enteringchanging a mill. Mills are added to projects, and then circuits are created out of combinations of mills. See the section on Creating a project to create a project to add a new mill to.. For the purposes of the model, a crusher is considered a special type of mill. Adding a crusher is the same as adding a mill.
SlipStream . SlipStream is a proprietary, patented technology that utilizes vented hydrocarbons, which would otherwise be lost to the atmosphere, as a supplementary fuel source for natural gas engines. SlipStream technology monitors and controls the addition of these vented hydrocarbons to ensure safe, reliable, and efficient engine operation.
SlipStream is a proprietary, patented technology that utilizes vented hydrocarbons that would otherwise be lost to the atmosphere, as a supplementary fuel source for natural gas engines. SlipStream technology monitors and controls the addition of these vented hydrocarbons to ensure safe and reliable engine operation.
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