1 Optimization and Control of a Primary SAG Mill Using Real-time Grind Measurement C.W Steyn*, K Keet**, W Breytenbach*** *Control Engineer, Anglo American Platinum, Control and Instrumentation Department, Johannesburg,
SAG Mill Control Sag mill design SAG Mill Processing Customers want and that is our goal we produce ore crusher sag mill controller in Mongolia mill Autogenous and Semi-Autogenous Mills 's AG/SAG mills accomplish the same size reduction work as 2 or For most ores small with circuit and circuit control design as well as start.
Currently, the SAG mill expert control system is operational roughly 90% of the time with excellent results. Below is a very basic overview of the strategies and typical results we have seen. Objectives. Protect the SAG mill; Maintain smooth and stable operation of the SAG mill (SAG mill optimization) Maximize SAG mill tonnage
Grinding & Classification Circuits. ... There were some good correlations, but not reliable enough to use mill control. In one 36 ft SAG we used load cells for weight control (to adjust speed), with feed rate control and power control were used in conduction with the speed control. Worked excellent.
Jan 08, 2016· In this training module, we'll cover the workings of a semi-autogenous grinding mill, or SAG mill, that's designed to be the first stage of a grinding circuit. Ore that's crushed in a primary ...
Using Fuzzy Control to Optimize SAG Mill Production Lynn B. Hales, KnowledgeScape Systems, a Division of EIMCO, Salt Lake City, UTAH Charlie Moquin, KnowledgeScape Systems, a Division of EIMCO, Salt Lake City, UTAH
Monitoring Load Movement in Large Mills for Mineral Grinding Using LabVIEW and the NI PXI Platform ... (SAG) mill control system an indication of the positioning of the load cataract through counting and classification of impacts to the mill. The Solution: Using NI LabVIEW to program an algorithm for audio analysis, which detects, classifies ...
adequately control the mill; resulting in poor stability, frequent operator interventions and less than optimum performance. This paper describes the successful integration of advanced field systems such as mill feed image analysis (Wipfrag) and crusher gap controller (ASRi), into a multi-variable fuzzy logic SAG mill controller.
SAG Mill Control: It Shouldn't be that Hard | E & MJ. A control strategy recently implemented on a large variable-speed SAG mill at MMG's Century Zinc operation in Australia is shown in the chart (found on pg. 32). In this case, mill speed is the primary manipulated variable used to control mill load.
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800xA control system for gearless mill drive at Cajamarca mone in Peru More robust and more reliable control system for GMD, all future upgrades of the control system are executed online, one common source for all GMD system data ... Conga: The world's first 42-foot diameter 28 MW gearless SAG mill (English - pdf - Technical publication) Copper ...
Nov 21, 2013· Starting a 6kV 3Ph - 2,200 kW - 1,000 rpm slip-ring motor for a cement ball mill - Duration: 3:51. Yves Mamin 327,388 views
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Enhanced mill performance. SAGwise total process control uses specially designed acoustic sensors and proprietary process control software to monitor and respond to critical impacts inside your SAG Mill. Conditions inside your mill are automatically adjusted to minimise liner damage, stabilise and then optimise the operation of a SAG Mill.
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In this case, mill speed is the primary manipulated variable used to control mill load. While there is no generic control strategy for SAG milling there is a considerable amount of reusable engineering. In contrast to an expert or black box system, the control loop approach was built using standard blocks, connected as shown.
BrainWave Control solutions for SAG mills. 02 The solution: Measure. Control. And profit. BrainWave SAG mill is a unique control package using patented model-based predictive adaptive control technology. It is well known within the mining industry that effective grinding in a SAG mill depends
Model Predictive Control for SAG Milling in Minerals Processing | 5 Model Predictive Control on a SAG Mill and Ball Mills The solution for the SAG Mill is an adaptive controller which controls mill load using direct mill weight measurement or indirectly from bearing oil pressure.
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SAG Mill Control at Northparkes Page: 1 SAG Mill Control at Northparkes Mines (Not So Hard After All) A. J. Thornton, Principal Process Control Engineer1 Tom Pethybridge, Production Superintendent – OPD2 Tom Rivett, Process Control Engineer2 Richard Dunn, Metallurgical Superintendent2 1.
Advanced Controller for Grinding Mills: Results from a Ball Mill Circuit in a Copper Concentrator Anoop Mathur, Sujit Gaikwad, ... upsets such as mill spills and/or power excursions in SAG mills, "centrifuging" in ball mills, ... MILL CONTROL: BALL MILL CONTROL EXAMPLE
A SAG mill is usually a primary or first stage grinder. Get price. sag mill controller in mongolia Using Fuzzy Control to Optimize SAG Mill Production Lynn B. Hales, KnowledgeScape Systems, a Division of EIMCO, Salt Lake City, UTAH Charlie Moquin, KnowledgeScape Systems, a Division of EIMCO, Salt Lake City, UTAH ... Fire in Oyu Tolgoi sag mill.
MODEL PREDICTIVE CONTROL OF SAG MILLS AND FLOTATION CIRCUITS *Michael G. Forbes and Bill Gough . ANDRITZ AUTOMATION Ltd. 100 – 13700 International Place Richmond, BC V6V 2X8 Canada (*Corresponding author: [email protected]) ABSTRACT . Precise control of SAG mill loading and flotation cell level is critical to maximize production and
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.
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The Oyu Tolgoi mine is in the South Gobi Desert of Mongolia, 80 kilometres (50 mi) north of Mongolia's border with the People's Republic of China, where the mined copper is expected to be shipped. Oyu Tolgoi deposits contain an estimated 2,700,000 tonnes of …
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SAG and AG Mills operate by lifting ore/grinding media and dropping it on the operating bed of the mill charge. High impacts from lifting ore and media promote impact breakage which is the primary mechanism for size reduction in the mill.
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