# sag mill drawing

##### Grinding mill partsMetso

The line includes grinding mill heads shells gears and pinions main bearings trunnions trunnion liners and more for select machines. For certain designated parts additional enhancements have been made for increased safety and reliability. Examples of this includes correcting OEM design flaws and using improved materials for cost savings

Get Price##### IMPROVING ENERGY EFFICIENCY IN BARRICK GRINDING

The discovery of excess mill pooling in the SAG mill prompted a review of the "pumping" capacity of the SAG mill. The excess slurry pool inhibited grinding and caused unnecessary power draw on the mill with the internally recirculating slurry. Crash stop inspections (Figure 2) of the mill interior

Get Price##### Optimization and Control of a Primary SAG Mill Using Real

Each Module at Waterval Concentrator (WvalC) employs a φ7.3 m x 8.2 m EGL SAG mills with 2 x 5200 kW motors in primary milling duty. Two silos containing Merensky and UG2 ore respectively feed the mill that operates at a fixed 75 of the critical speed. The circuit is closed with a 600 µm aperture classification screen with

Get Price##### Minerals Free Full-Text Optimizing Performance of SABC

The power draw of the SAG mill has room for significant improvement. As ball filling in the SAG mill is quite low additional grinding media would likely increase the processing capacity of the SAG mill however the capacity of the ball mill with installed power

Get Price##### ball mill drawing pdf

Ball mill media optimizationMetcom Tech. Ball mill feed chute design drawings ga. Mining c ball mill drawingfilipinokyushobe. drawings of a mining ball mill drlainabe drawing civil ball mill cad civil ball mill design search cad design ball mill to find your need gulin mining and construction machinery is a ball . more info ga drawi.

Get Price##### (PDF) Selection and design of mill liners

Development of models relating charge shape and power draw to SAG mill operating parameters and their use in devising mill operating strategies to account for liner wear. Article.

Get Price##### SAG Mill Liner DesignMineral Processing Metallurgy

No discussion of SAG milling would be complete without mention of relining. Unlike a concentrator with multiple grinding lines conducting SAG mill maintenance shuts down an entire concentrator so there is a tremendous focus on minimizing required maintenance time the reline timeline often represents the critical path of a shutdown (but typically does not dominate a shutdown in terms of

Get Price##### (PDF) The Effect of Aspect Ratio on the Grinding

draw ball load speed etc and grind to the same P 80 will hav e. In terms of SAG mill aspect ratio there are now mainly three tendencies the lower the medium and the higher aspect

Get Price##### SINGLE STAGE SAG/AG MILLING DESIGN

SAG mill (4 ball charge 90 Nc) A cross between AG and SAG for average competency abrasive ores. Typically operated in RSA on Witwatersrand Gold Ore Driefontein (Underground) Kloof Jacobina 6 SAG mill with recycle crusher (815 ball charge) Competent ores better suited to coarse grind sizes. High aspect mills are recommended to

Get Price##### ONLINE SAG MILL PULSE MEASUREMENT AND OPTIMIZATION

The product from the SAG mill is further reduced in size using pebble crushers and ball mills. Hence typical gold or copper ore requires between 2.0 and 7.5 kWh per ton of energy to reduce the particle size. Considering a typical mining operation processes 10 000 to 100 000 tons per day the energy expenditure in grinding is 50 percent of the

Get Price##### AN OVERVIEW OF SINGLE STAGE AUTOGENOUS AND

3 SAG mill (815 ball charge) Variable competency ore 4 High ball charge SAG mill (15 to 25 ball charge) Incompetent ore 5 Low ball charge SAG mill high mill speed. (4 ball charge 90 Nc) A cross between AG and SAG for competent abrasive ores. As typically operated in RSA. 6 SAG mill (configurations 3 and 5 ) with recycle crusher

Get Price##### Sag Mill Drawing

Sag Mill Drawing. MILLING CONTROL OPTIMISATIONMintek. MILLING CONTROL OPTIMISATION . close to the maximum mill power draw. . Figures 8 and 9 on the right show results from a gold plant s SAG mill achieved with .

Get Price##### Mill power draw modelsSAGMILLING

You must manually check the motor s tent diagram to confirm that the predicted power draw is actually within the motor s capability at the indicated speed. Liner and grate design. The design of mill liners and SAG mill discharge grates will have a large effect on how efficiently the mill

Get Price##### AMIT 135 Lesson 6 Grinding CircuitMining Mill Operator

SAG Mill Circuit ExampleGold Processing SAG mill circuit example for gold processing image (135-6-3) AG/SAG Mill. AG/SAG mills are normally used to grind run-off-mine ore or primary crusher product. Wet grinding in an AG/SAG mill is accomplished in a slurry of 50 to 80 percent solids. 2D and 3D simulations of particles in a SAG Mill

Get Price##### Multi-component AG/SAG mill modelScienceDirect

Morrell s power model assumes the mill charge shape as shown in Fig. 9 and the mill gross power draw to have two components net power and no-load power. Download Download full-size image Fig. 9. Simplified AG/SAG mill charge shape (Napier-Munn et al. 1996).

Get Price##### AMIT 135 Lesson 6 Grinding CircuitMining Mill Operator

SAG Mill Circuit ExampleGold Processing SAG mill circuit example for gold processing image (135-6-3) AG/SAG Mill. AG/SAG mills are normally used to grind run-off-mine ore or primary crusher product. Wet grinding in an AG/SAG mill is accomplished in a slurry of 50 to 80 percent solids. 2D and 3D simulations of particles in a SAG Mill

Get Price##### AG millsMetso

Gearless mill drive (GMD) technology has further expanded the use of large AG milling allowing to produce the world s largest SAG mill of 42 in diameter drawing power at 28 MW. Today is the world leading supplier of gearless AG mills operating globally.

Get Price##### Modelling the influence on power draw of the slurry phase

If one looks back over the last 70 years or so there is a fairly common theme to most of tumbling mill power draw models (Bond 1961 Hogg and Fuerstenau 1972 Arbiter and Harris 1982 Austin 1990).This is that the models used the charge shape shown in Fig. 1 in which it was assumed that all particles moved with same rotational rate and that the slurry phase was not explicitly considered.

Get Price##### Multi-component AG/SAG mill modelScienceDirect

Morrell s power model assumes the mill charge shape as shown in Fig. 9 and the mill gross power draw to have two components net power and no-load power. Download Download full-size image Fig. 9. Simplified AG/SAG mill charge shape (Napier-Munn et al. 1996).

Get Price##### MiningGrinding and Processing WEG

Variable Speed . Single or double pinion driving systems. Designed to drive and control the speed of the medium voltage motors coupled to the SAG/AG ball and HPGR mills with single or double pinion the MVW01 frequency drive uses state of the art technology through a multilevel structure with medium voltage IGBTs reducing the harmonic currents on the motor to extremely low levels.

Get Price##### Optimizing Performance of SABC Comminution Circuit of the

The combined power draw of the SAG mill and ball mill was 8658 kW which caused partial over-grinding. From experience in processing plants outside of China the power rating of the ball mill should be higher than that of the SAG mill 5 . The pebble crusher had an over-powered conﬁguration. The installed power draw of 630 kW

Get Price##### MIRL Mill Simulator

any item on the list to start drawing the circuit. There are six unit process that the user can add to their circuit. They are as follows 1. Feed 2. Ball Mill 3. Semi-Autogenous Mill (SAG Mill) 4. Hydrocyclone 5. Sump Pump 6. Screen Apart from these six unit processes there are some added features that makes the simulator easy to use.

Get Price##### Modelling SAG milling power and specific energy

mill diameter mill length grates openings and pebble ports size the power equation is also function of all the operational variables selected for this study. The applied force is a function of the mass inside the mill and it is composed of balls ore and water. The ball charge is a function of the bulk fraction of the SAG mill volume (Jb)

Get Price##### SAGMILLING

Model types mill power draw. Austin SAG model (hybrid phenomenological and empirical model) Morrell C-model for SAG ball mills (phenomenological model with empirical fitting). Sub-divided into a simplified model with typical defaults and a full model with all parameters editable.

Get Price##### Uneven SAG Mill Drive Power DrawGrinding

Uneven SAG Mill Drive Power Draw (26 replies) Raje Singh. 4 years ago. Raje Singh 4 years ago. Differences between drives power draw of two drives sag mills. In a double drive/pinion SAG we face different power draw between each drives. Can this be caused by charge motion or some others process problem Maya Rothman.

Get Price##### Sag Mill Power Calculations

Orway Mineral Consultants Canada Ltd Mississauga On. The sag power index spi test starkey dobby 1996 uses a benchscale sag mill test to determine the specific energy of an industrial sag mill the test is operated in closed circuit and the time required to grind the material to a

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