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• The WRIM + LRS system is causing high transient torques during the start-up. Figure 5. The WRIM + LRS is causing high transient torques during the start-up. Based on a study done by Anglo Technical Division, presented in a technical paper on the occasion of the SAG 2006 in Vancouver, B. C.
Jun 28, 2019· 1.6 x Full load torque, very typical for a ball mill or sag mill as Chris mentioned. The liquid starter simply adds resistance in the rotor during starting toAppliion of Liquid Resistance Starter ...
meaning of ser on sag mills in How Much Crusher[], ... » photos of sag mills » maintenance of size reduction of hammer mills and plate mills. ... Maintaining & repairing Mills LRS and SER for SAG Mill. Maintaining HT switchgear and transformers. » Learn More. USING THE SMC TEST® TO PREDICT COMMINUTION CIRCUIT PERFORMANCE.
Oct 10, 2008· In 2003, following a competitive tender, Outotec were awarded the contract to supply Kansanshi with a low aspect SAG mill. Not only did variations in ore type and throughput need to be considered in the mill design, but the design also needed to be flexible enough for future expansions at .
Jan 24, 2008· Se que ball mill es molino de bola, pero no se qué sea un molino de bola ¿Hay alguna otra palabra para describirlo? Entiendo que sag es como una depresión, hendidura o caída debida al peso, pero no se en sí que sea 'sag mill'. También quisiera saber qué es 'tower mill', ya que molino de torre me suena muy literal. Gracias.
SAG Mill LRS Control. The Problem Bottle Neck: Hard ore in circuit reducing throughput Major Issue No control of mill rotational speed due to old equipment and no capital expenditure Current System Control System - Mill control power to weight ratio Register for your free account. Login to continue reading ...
Mar 31, 2017· SAG MILL ELLER SAGGGGG MILL? | Ensomhetsøya 3.0 #4 | Norsk Minecraft Noobwork - Norsk gaming! ... Takk for at du ser på! Før du går videre, En .
Sep 20, 2019· The SER delivers 100 per cent of rated (nameplate) motor shaft power at above synchronous speeds, an exclusive benefit of this SER technology. The CSE Uniserve Modern SER Drive is a compact, powerful, multi-functional and reliable addition to other SAG mill control technologies on the market today. Electrical features
COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS AND THEIR DUAL PINION MILL DRIVES ABSTRACT 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
Data and Tools. Academic Libraries. Examine academic library research data from federal agencies, professional organizations, and state research projects. ... interactive tool from LRS. ... Download an Excel document outlining current mill levies and associated revenues for library districts across Colorado.
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SAG Mill Control: It Shouldn't be that Hard An economically appealing method for improving operations is available without the capital expense — get more out of a mill by applying the advanced control capabilities in the existing plant control system By Andrew Thornton
Sep 17, 2013· For now I am working on a mining project which involves starting two SAG mills, the method of starting these mills is by rotor resistance and likewise we are using an energy recovery system (SER), could someone tell me how this system works SER? each mills have two motors of 8000 kW at 13.8 kV. thank you for all.
The mill used for this comparison is a 4.4-meter diameter by 13.6 meter long ball mill with a 5000 HP drive motor. It is designed for approximately 90 s.ton per hour. This type two-compartment mill is a state- of-the-art shell supported cement finish mill. The torque and time requirements of the mill with the ball
EPM Electrolytic starter (LRS) for slipring motors from 550 to 20,000 kW. ... EPM electrolytic starter can be used to start slipring motors from 500 kW to 20,000 kW. It will supply the power necessary to drive the motor by resistance variation. Designed for controlled starting and speed control of large slipring motors in demanding applications ...
Jul 30, 2015· Critical Monitoring of SAG Mill Electrical Systems. ... pictured below consists of 2x 4 inch Turtle Tough Extreme IR windows and visual viewports installed on the SAG Mill LRS electrical panel. Turtle Tough . This is a critical piece of infrastructure to keep the MILL running and is under extreme load and environmental conditions.
exhibits many of these aspects. Maintaining the SAG mill weight at the optimum value is critical for achieving maximum grind rate efficiency and mill production (Powell, M.S., van der Westhuizen, A.P., & Mainza, A.N. 2009). However, SAG mill weight is difficult to control as the dynamic response changes as the mill approaches maximum capacity.
Mill speed can be adapted to upstream and downstream processes – avoids overgrinding, and optimizes load distribution between SAG and ball mill (Mular, Halbe & Barratt, 2002). Power consumption is influenced by load respectively torque and mill speed. This means that further energy can be saved if a mill speed below the rate speed is re-
Grinding plant with SAG and tube mill for Gold/copper ore grinding in Australia.This is the world's biggest SAG mill equipped with sliding shoe bearing arrangement and COMBIFLEX® drive system (a favourably-priced alternative to the ring motors normally used with SAG mills of this size).
SAG Mill Process Control - What do you prefer? Controlling Weight (within a range) by manipulating mill speed and keeping a constant feed rate? ... Grinding & Classification Circuits. ... There are multiple ways to provide variable speed, the common ones are WRIM+LRS+SER or SCIM+VSD, the top of the range is gearless mill drives. Victor Bergman ...
Starting of the mill is possible by either using two of the 1250kVA sets or one 1250kVA and the 500kVA set. No theoretical analysis had been performed on the system, due to being an existing plant. Commissioning on site involved testing the LRS for the correct resistance to ensure the mill motor would develop ample torque to accelerate the mill.
Dec 19, 2014· Advantages of SER drives for SAG mills; Advantages of SER drives for SAG mills. Friday, December 19, 2014 ... starting the usual way with the LRS. ... I expect that this type of drive would be the most common large mill variable speed mill drive in the world's minerals processing industry for the range mentioned above for the last 15 years ...
We are experts in Slip Energy Recovery Drives (SER Drives), Liquid Resistor Starters (LRS), Static Excitation Systems and Harmonics filters. Find out the solutions we provide our customers for their SAG mills, AG mills and ball mills commonly used in the mining sector.
Our Modern SER is a compact, powerful, efficient, multi-functional and reliable addition to the SAG Mill control technologies on the market today.
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