sag mill ore hard soft control





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Sag Mill Ore Hard Soft

Apr 14, 2020· Sag Mill Ore Hard Soft Commercial sag mill grinding conditions on 45 l of ore and determines the sag mill pinion energy needed to grind ore from 80 passing 152 mm to 80 passing 17 mm herein referred to as macro ore hardness the sag mill product is then crushed to 100 passing 335 mm and is subjected to...Know More

A structured approach to the evaluation of the energy ,

A structured approach to the evaluation of the energy requirements of HPGR and SAG mill circuits in hard ore applications The application of high pressure grinding rolls (HPGR) has been growing in the mining industry for the last 10 to 15 years...Know More

sag mill ore hard soft control

Supervisory Fuzzy Expert Controller for Sag Mill Grinding Jan 23 2017 0183 32 This controller uses a SAG mill power model as a soft sensor to as the ore will spend less time in the mill control of SAG mill ,...Know More

south african sag mill on soft ore

south african sag mill on soft ore This crusher was devised to work with soft rocks such as , jaw crusher, cone crusher, belt conveyor, SAG mill, ball mill is used for copper ore,...Know More

sag mill ore hard soft control in philippines

sag mill ore hard soft control in philippin Phoenix Big mill and latest tech keep long Know More Jun 06 2019 0183 32 The semi-autogenous grinding SAG mill at the Phoenix Mine is the largest SAG mill in the United Stat This is a low-grade deposit so volume is what makes up the difference said Phoenix....Know More

Optimization of a SAG Mill Energy System: Integrating Rock ,

Jul 01, 2019· This is achieved by using two stockpiles of limited capacity, to classify ore as hard or soft, depending on its expected grindability (Fig 3) The SAG mill will draw from one of the two stockpiles at will to minimize the energy cost If one of the stocks is emptied, the ore from the other stockpile is used...Know More

sag mill ore hard soft control - toptijdenbvnl

2015-11-12 •SAG/BALL mill with 2 leach and 6 CIL •100 % soft ore Phase II 2006 Increase capacity 58Mtpa •Addition of Gyratory Crusher for processing of hard rock •Increase production to 8Mtpa with internal initiatives •Elusion 4t to 6t vessels Phase III 2009 Increase capacity to 12Mtpa •Addition of 2nd Ball mill, pebble circuit ....Know More

The SAG Power index also known as the Starkey SAG Test ,

Detailed descriptions of the test equipment, procedures, and calibration are provided, and it is proposed that this become an open standard procedure for SAG mill hardness testing, particularly for soft to med- ium-hard ores, over which range the test is most effective...Know More

Sag Mill Ore Hard Soft Control - wingtsun-rangsdorfde

Sag Mill Ore Hard Soft Control Reference Price: Get Latest Price To evaluate how to maintain the target throughputs ndash and profit ndash over the Life-of-Mine LOM, the owner of the mine, Phu Bia Mining Limited, embarked on a throughput forecasting and optimisation project with the help of Metsorsquos Process Technology and Innovation team in 2012...Know More

Improving SAG and Ball Mill Control in 4 hours

Dec 23, 2016· There are good and bad control techniques for SAG and Ball mill operation used in the industry It is difficult to get an online measurement of ore hardness that can be used for process control...Know More

sag mill ore hard soft control

Choosing a SAG Mill to Achieve Design Performance the correct power required to grind ore in a SAG mill, by developing ore, full-scale tests it will prove to be essential to monitor and control the load in, production when milling hard ores may not be a problem if the amount of ore, not be a problem if the downstream process can handle extra tonnage when the ore is soft...Know More

Effect of Mill Volumetric Load Level % Solids & Speed on ,

Jun 29, 2018· When ore conditions are soft, the SAG mills tend toward grind-out conditions The volumetric level at which the SAG mill is operated is a very important control parameter strongly affecting grinding rates and transport action within the SAG mill...Know More

sag mill ore hard soft control

Supervisory Fuzzy Expert Controller for Sag Mill Grinding Jan 23 2017 0183 32 This controller uses a SAG mill power model as a soft sensor to as the ore will spend less time in the mill control of SAG mill ,...Know More

SAG Mill Control: It Shouldn’t be that Hard | E & MJ

SAG mill control fundamentally means managing the load in the mill by adjusting the feed rate of ore to the mill and/or manipulating the rotational speed of the mill The best way to measure load is to mount the mill on load cells The load cells are calibrated to measure the total weight of water, grinding media (balls) and ore in the mill ....Know More

Sag Mill Ore Hard Soft_10 lime stone crushers small

Apr 03, 2017· 2013-5-6 was surprising that the Bond Rod Mill Wi average was 113 kWh/t Since the ore is unusually soft, the Rod Mill Wi is probably irrelevant in determining required power for the SAG mill Drop Weight Tests Drop Weight tests were done at Hazen and analyzed by Contract Support Services, Inc Table 4: Summary of 6 JKTech Drop Weight Tests...Know More

Demo | Minerality | Minerals processing Software, Training ,

The ore properties passing through an AG/SAG mill often changes unexpectedly If it does, you need a test that you can do in the lab on site to quickly predict what you can do to prevent loss In this exercise you can simulate the effect of a different Bond Work Index...Know More

sag mill ore hard soft control – Grinding Mill China

Combining mixtures of hard and soft ores to be processed through the same mill , for far greater speed control of the mill , crushing forces on an ore, used in SAG and AG mill , » Free online chat! Grinding of Agrium Phosphate Ores in a 3’ Diameter Pilot SAG Mill hard ore was treated, the SAG mill restricted the tonnage that could be ....Know More

Improving SAG and Ball Mill Control in 4 hours

Dec 23, 2016· There are good and bad control techniques for SAG and Ball mill operation used in the industry It is difficult to get an online measurement of ore hardness that can be used for process control...Know More

Autogenous Grinding & Semi Autogenous Grinding Circuits

Jul 20, 2017· Autogenous and semi-autogenous mills have been very successful on relatively soft uranium ores where the values are frequently found in the material that cements the sandstone grains together Autogenous Grinding Circuits When an ore is hard and competent, there is always the possibility that it would make good “pebbles” which could be ....Know More

The Evolution of Crushing and Grinding: Changes in the ,

Jul 01, 2010· Pebble crushing is an arduous duty in a SAG mill circuit The trend to installing larger pebble crushers capable of crushing up to 70-100 percent of the new feed rate has been observed...Know More

SAG Mill Grinding Circuit Design - 911metallurgist

Jun 06, 2016· Such a circuit can counteract the effects of harder ore coarser ore decrease the size of SAG mill required, or rectify poor throughput due to an undersized SAG circuit Notably, harder ore often presents itself to the SAG circuit as coarser than softer ore—less comminution is produced in blasting and primary crushing, and therefore the ....Know More

Sag Mill Ore Hard Soft - ehbdierennl

However, the effects of a varying ratio of hard and soft components in mill performance are not described by the current generation of AG/SAG models (Stange, 1996)For example, current JKSimMet models (Napier-Munn et al, 1996) assume a uniform feed, and describe it using a single set of average ore...Know More

Grinding Circuit Design for Adanac Moly

SPI; the ore can be relatively soft at 2 coarser sizes while relatively hard at finer siz This can have a significant impact in a SAG and Ball mill circuit where there , the capability of the SAG mill to handle more, and vice versa when the SPI value is high...Know More

Sag Mill Ore Hard Soft Control

Sag Mill Ore Hard Soft Control We are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant, rotary dryer, briquette machine, mining, metallurgy and other related equipment which can crush all kinds of metal and non ....Know More

Sag Mill Ore Hard Soft Control

Sag Mill Ore Hard Soft Control Automation Advanced Control Solutions present both in the ore feed system and within the mill itself Additionally, BrainWave automatically adjusts its control settings to allow for different operation due to changes in ore hardness over time With improved SAG mill control stability, the mill load can be ....Know More

An LSTM Approach for SAG Mill Operational Relative ,

Aug 20, 2020· operational relative-hardness We applied the proposed methodology on two SAG mill datasets, of one year period each Results show accuracies above 80% on both SAG mills at a short upcoming period of times and around 1% of misclassifications between soft and hard ,...Know More

Gold processing 101 - Mining Magazine

Sep 07, 2017· However, the SAG route is more power-intensive and, for very hard ores, comes with some process risk in predicting performance More recently, a hybrid solution has become available in the form of high pressure grinding rolls (HPGRs), which can replace the third stage of crushing and also the SAG mill...Know More

Autogenous Grinding & Semi Autogenous Grinding Circuits

Jul 20, 2017· Autogenous and semi-autogenous mills have been very successful on relatively soft uranium ores where the values are frequently found in the material that cements the sandstone grains together Autogenous Grinding Circuits When an ore is hard and competent, there is always the possibility that it would make good “pebbles” which could be ....Know More

sag mill ore hard soft control - arakon-tvgenialde

Download A Paper Describing SAG Mill Control Using TheKnow More operability and control of grinding circuits where direct tipping and ore SAG mill control on two sites in Australia that have adopted the new control technology the mill is being worked harder and using more of the available power draw consists of three coarse ore feeders and one soft ore feeder supplying a 1097m....Know More

SAG Mill Control at Northparkes Mines ( Not So Hard After ,

The difficulty of stabilizing SAG mill load limits the effectiveness of feedback control approach Control is particularly difficult during periods when the feed ore is either unusually hard or fine There is also a strong tendency to lose control during transient periods when feed ore chang The control problem is also compounded by long process deadtimes, recycle streams, noisy ....Know More