ag sag milling control
We provide a variety of milling equipments and production line. Welcome to consult and purchase.
E-mail: [email protected]
Mine to Mill The influence of feed size on AG/SAG milling
In this presentation an historical perspective of the origins of Mine to Mill is described and is followed by a discussion of how AG/SAG feed size affects throughput and specific energy and the factors that in turn influence AG/SAG feed size such as ore hardness Run of Mine RoM size distribution and crusher operation both primary and secondary .
Get Price
SAG Mill Control It Shouldnt be that Hard
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
Get Price
AG/SAG Mill LinersPolycorpManufacturers of
AG/SAG Mill Liners We have supplied rubber pulp lifters for SAG mills up to 40 ft in diameter We are pioneers in the design of both radial and curved pulp lifters also design and manufacture Rubber PolyStl grates and discharge systems.
Get Price
AMIT 135 Lesson 6 Grinding CircuitMining Mill
AG/SAG mills can accomplish the same size reduction work as two or three stages of crushing and screening a rod mill and some or all of the work of a ball mill Because of the range of mill sizes available AG/SAG milling can often be accomplished with fewer lines than in a conventional rod mill/ball mill
Get Price
Welcome to Manta ControlsManta Controls
Welcome to Manta Controls Manta Controls offers specialised consulting services in optimisation process control general process control safety systems and process information management systems We have extensive practical operational experience on various significant mine sites across Australia Canada and Africa.
Get Price
AG SAG Mill Grinding Circuit Automatic Control
Modeling SAG Mill Performance Prior to embarking on the development of any type of high level control strategy a series of tests is required to determine the nature of the relationships between SAG mill throughput load as measured by bearing pressure and measurements inside the mill
Get Price
Power based modelling of single stage AG and SAG mill
The single stage autogenous grinding AG or semi autogenous grinding SAG mill is a low cost option for milling relatively low tonnages Such circuits consist of an AG or SAG mill that is fed directly from a primary crusher and the mill product is then classified through a hydrocyclone or
Get Price
MILLING CONTROL OPTIMISATION
MILL FEED CONTROL Smooth operation of a milling circuit is difficult to achieve due to The varying nature of the feed material size ore hardness etc The unfavorable dynamics between feeders and the weightometer These dynamics degrade the performance of PID controllers making feed optimisation more challenging.
Get Price
Expert mill control at AngloGold Ashanti
The typical South African ROM run of mine SAG semi autogenous milling circuit is described with the emphasis on the process control systems employed The history of the circuit process controller is then discussed briefly to illustrate the
Get Price
Improved Relationships for Discharge in SAG/AG Mills
AG SAG Milling SAG mill Discharge Comminution Aperture Pebble port Grate Classification Australian and New Zealand Standard Research Classifications ANZSRC ANZSRC code 091404 Mineral Processing/Beneficiation 100 Fields of Research FoR Classification FoR code 0914 Resources Engineering and Extractive Metallurgy 100
Get Price
Taking Control of the Mill Feed R2orway
The effect of feed size in AG/SAG milling has been studied extensively with an early review presented by Abel 1997 whilst the relationship between changes in feed size and comminution has been covered by a number of authors under the banner of Mine to Mill Morrell and Kojovic
Get Price
Grinding Outotec
With over a century of experience Outotec designs and manufactures the most comprehensive line of grinding mills and entire grinding systems for mining companies around the world The comprehensive offering provides reliable and energy efficient technology and solutions across wet dry horizontal and vertical grinding operations.
Get Price
A General Model for Semi autogenous and Autogenous
FAG mill model The FAG mill model is essentially identical to that to the SAG mill model given as Eq 8 except that it is applied as an equivalent series of reactors 8 9 with various degrees of recycle of the material rejected back to the mill by the grate as
Get Price
Evolution of SAG Mill Process Control at the Xstrata
445 PAPER 28 Evolution of SAG Mill Process Control at the Xstrata Nickel Raglan Operation Erik Bartsch1 Chief Engineer Guy Comeau2 Senior Metallurgist Colin Hardie3 Former Chief Metallurgist 1 Process Control Group Xstrata Process Support 6 Edison Rd Falconbridge Ontario
Get Price
AG mills Outotec
Gearless mill drive GMD technology has further expanded the use of large AG milling allowing Outotec to produce the world s largest SAG mill of 42 in diameter drawing power at 28 MW Today Outotec is the world leading supplier of gearless AG mills operating globally.
Get Price
SAGMILLING
Grinding Circuit Modelling Documentation This documentation describes the operating and underlying mathematics of the SAGMILLING grinding circuit modelling program It is intended to be used by the model users who want to operate and understand the functioning of grinding models.
Get Price
Modelling SAG milling power and specific energy
Modelling SAG milling power and specific energy consumption including the feed percentage of intermediate size particles M Silva A Casali⇑ Mining Engineering Department Universidad de Chile Beauchef 850 Santiago Chile
Get Price
SAG and AG MillAmstar Corporation
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 Amstar SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28 000 kW Our team of product engineers
Get Price
Autogenous Grinding Semi Autogenous Grinding Circuits
Semi autogenous plus ball mill has been the work horse of mills SAG vs Ball Mill Advantages AG SAG Mill Grinding ComparedWhich is Best Grinding rods and balls can be obtained in uniform sizes weights and of a specified quality Their action in a mill
Get Price
Digital Control Lab
Founded by Dr Karl Gugel Digital Control Lab started its life in 1998 as an electronics consulting firm known as DiCon Labs During the early years DiCon Lab was contacted by a leading cement manufacturer to replace microphone based systems for real time mill loading measurements.
Get Price
Small Scale Continuous SAG Testing Using the
milling where the ability to control the product size is very limited For a given power draw kW the specific energy input in kWh/t input is purely driven by the AG/SAG mill throughput which in turn is driven by the dynamic of the ore The traditional approach to measure the specific energy requirement was to
Get Price
CURRENT TRENDS IN SAG AND AG MILL OPERABILITY
control of SAG and AG mills to utilis e new advanced control techniques These techniques are necessary to maintain stability and optimise the performance of the new SAG
Get PriceThroughput optimisation in milling circuits
Each milling circuit is unique and as such the goals and most optimal control strategy might differ for individual cases Process IQ is an expert in implementing control systems for SAG and Ball milling circuits making use of advanced stabilisation and optimisation strategies developed by Mintek.
Get Price
Morrell Method GMG ICE v01 r01 Morrell
the tumbling mill stage s µm 8 Product P80 of the tumbling mill stage s µm If there are multiple stages of grinding e.g SAG milling followed by ball milling only the P80 of the product of the final milling stage is required In addition to the above data a representativesample of the primary crusher product is required for
Get Price
Autogenous and Semi Autogenous Mills FL
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 SAG/AG Mills range in size
Get Price
FREDA REBECCA SAGMILLING CIRCUIT OPTIMIZATION
The introduction and subsequent ascendancy of AG and SAG milling for comminution circuits has led to many economic advantages from high processing capacity energy efficiency lower investment and maintenance cost Nunez F and Silva D 2011 .
Get Price
SINGLE STAGE SAG/AG MILLING DESIGNOrway
SAG/AG milling option is ideal for starter projects with significant exploration and expansion potential Currently a number of the largest SAG mills designed are installed in single stage configuration This paper discusses the challenges associated with the process design of single stage SAG/AG milling circuits the design flexibility required to
Get Price
Ag Sag Milling Control Grinding Mill China
Ag Sag Milling Control Grinding Mill China Ball Mill for Sale Mining and Cement Milling EquipmentWith more than 20 years of experience in the manufacturing and research of mineral and cement milling equipment AGICO has more than 50 technical patents All of our ball mills vertical roller mill rod mill and AG/SAG mill have passed the
Get Price
A Method of C alculating Autogenous Semi
AG/SAG SE values to enable the additional power required for AG/SAG milling to be determined AG/SAG inef ciency varies according to the transfer size fi T80 whereby the ner sizes have less ineffi ciency than the fi coarser sizes This means a closed circuit single stage AG SAG mill can operate at a reasonable ef ciency if the fi nal fi
Get Price
SAGMILLING Articles
Blank spreadsheet that is pre populated with the field names needed to import laboratory test results into the SAGMILLING circuit model testwork database subscription required Enter your test results one per row arranged into the columns indicated To import into your testwork database copy the block of cells starting with the top row
Get Price
Converting AG to SAG mills The Gol E Gohar Iron Ore
Converting AG to SAG milling and grinding performance An important prerequisite to convert AG to SAG mills was to assure that the mill fillings was above 20 On two occasions the mill was crash stopped and the fillings were found to be 22 and 26 To provide 5 v/v balls 21 t balls with sizes and amounts shown in Table 2 were added The
Get Price
MILLING CONTROL OPTIMISATION
MILL FEED CONTROL Smooth operation of a milling circuit is difficult to achieve due to The varying nature of the feed material size ore hardness etc The unfavorable dynamics between feeders and the weightometer These dynamics degrade the performance of PID controllers making feed optimisation more challenging.
Get Price
Mine to Mill The influence of feed size on AG/SAG milling
2 days ago In this presentation an historical perspective of the origins of Mine to Mill is described and is followed by a discussion of how AG/SAG feed size affects throughput and specific energy and the factors that in turn influence AG/SAG feed size such as ore hardness Run of Mine RoM size distribution and crusher operation both primary and secondary .
Get Price