# maximum reduction ratio of sag mill

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

reduction technique can be found in Equations 1 2 and 3. In terms of SAG mill aspect ratio there are now mainly three tendencies the lower the medium and the higher aspect ratios

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

controller. The WvalC SAG milling operation applies a similar control schema but with changes to the fuzzy-logic rules and dynamic models. The base-layer comprises of a series of cascading PID loops aimed at stabilizing the ore feed Merensky/UG2 ratio (MUR) and inlet water ratio to specific setpoints (SP). The latter is provided by an

Get Price##### Basics of Rolling of SteelIspatGuru

Nov 21 2015 · The starting material for cold-rolled steel sheet is pickled hot-rolled coil from the continuous hot-strip mill. The total reduction achieved by cold-rolling generally will vary from about 50 to 90 . The reduction in each stand is to be distributed uniformly without falling much below the maximum reduction for each pass.

Get Price##### Calculation of the Total Reduction Ratio in WAASCisco

Jul 29 2013 · To calculate the reduction in traffic (the total reduction ratio) use this formula 1(total optimized bytes/total original bytes) In this example the calculation is 1(210596/1189172) = .82290535 or 82.291 . If the amount of optimized bytes is greater than the amount of original bytes you see a total reduction ratio of 0.00 .

Get Price##### Grinding millsfor mining and minerals processingMetso

Every mining operation has a unique grinding process. has experience of over 8 000 grinding mills globally including manufacturing and delivering the largest SAG/AG mills in the world. Our experts welcome the opportunity to assist you with circuit and circuit control design as well as start-up operation and optimization of your mill.

Get Price##### Optimum choice of the make-up ball sizes for maximum

This was found to be true for all other factors investigated as well. With a size reduction ratio of 16 1 (Fig. 7a) the maximum capacity was obtained with a 50.8 mm/25.4 mm ball mix ratio of 90 10. As the size reduction ratio increases the optimum ball ratio moves towards more small balls.

Get Price##### processing plant using dry aerofall sag millMINING solution

processing plant using dry aerofall sag mill. processing plant using dry aerofall sag mill Ciros crushing equipment is designed to achieve maximum productivity and high reduction ratio From large primary jaw . Chat Now processing plant using dry aerofall sag mill 1633 de WEBindd ThyssenKrupp Industrial Solutions- processing plant using dry

Get Price##### sag mill ball size 125mmzwemles-volwassenen-den-haag

autogenous SAG Mill via an utilized method Miduk copper concentrator is located in Kerman Province Iran and its size reduction stage includes one gyratory crusher which feeds one SAG mill 975 diam388 lengthm following two parallel ball mills 5diam7lenghtm After SAG mill a. More Detail 100 and 125mm sag mill using forged steel balls

Get Price##### Calculation of the Total Reduction Ratio in WAASCisco

Jul 29 2013 · To calculate the reduction in traffic (the total reduction ratio) use this formula 1(total optimized bytes/total original bytes) In this example the calculation is 1(210596/1189172) = .82290535 or 82.291 . If the amount of optimized bytes is greater than the amount of original bytes you see a total reduction ratio of 0.00 .

Get Price##### Mill drives the desire for increased power and the

a "SAG Mill limiting" condition i.e. harder ore or a "Ball Mill limiting" condition i.e. softer ore exists. For example a ratio of 1 1.5 or up to 1 2 would indicate a trend away from processing harder ore types and an increasing bias toward processing softer ore types whereas a ratio

Get Price##### Sino Grinding Mineral Processing

In addition to high impact SAG mill grinding media is used in other types of milling such as the finer grind of ball mills tower mills vibration mills and regrind mills. Many variables influence the size reduction performance in a mill including the media size shape quality the properties of the incoming ore feed the ratio of feed to

Get Price##### Grinding Mills and Their TypesIspatGuru

Apr 09 2015 · Reduction ratio and final size requirement. -This parameter decides whether a single mill is sufficient for final product requirements or if a multi stage grinding plant is be needed. Normally greater the reduction ratio the larger is the likelihood for a multi stage process.

Get Price##### Mill (grinding)Wikipedia

SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also 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.

Get Price##### calculate sag mill power draw

maximum reduction ratio of sag mill calculate sag mill power draw. AMIT 135 Lesson 7 Ball Mills CircuitsMining Mill . Mill Power Draw. The motor power draw required to turn a mill from rest to the operating speed includes the energy required for the initial starting torque and mechanical arrangements to rotate the mill. It is generally

Get Price##### Standard Number Of Reduction Ratio Of Grinding Mill

Reduction ratio under given load and particle size requirement capacity is a function of mill length and diameter q kld 2n.n is related to mill diameter which decreases with larger diameters k a constant equal to /4.a chart showing rod mill capacity vs.mill diameter image (135-8-5) a chart showing rod mill capacity vs.mill

Get Price##### CONGA THE WORLD S FIRST 42 FOOT DIAMETER 28 MW

1 CONGA THE WORLD S FIRST 42 FOOT DIAMETER 28 MW GEARLESS SAG MILL T. Orser1 V. Svalbonas 2 and M. Van de Vijfeijken 3 1Newmont Mining Corporation 10101 East Dry Creek Road Englewood CO 80112 USA 2Metso Corp. 2715 Pleasant Valley Rd.

Get Price##### Rolling of Metals

•Maximum draft possible h o –h f = m2R •Coefficient of friction m •Roll radius R •The strip thickness is reduced at each rolling pass and the strip width increases slightly (around 2 ) •h 0 V 0 w 0 = h f V f w f. Typically w f = 1.02 w 0

Get Price##### Ball Millsan overview ScienceDirect Topics

where d b.max is the maximum size of feed (mm) σ is compression strength (MPa) E is modulus of elasticity (MPa) ρb is density of material of balls (kg/m 3) D is inner diameter of the mill body (m).. Generally a maximum allowed ball size is situated in the range from D /18 to D/24.. The degree of filling the mill with balls also influences productivity of the mill and milling efficiency.

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

controller. The WvalC SAG milling operation applies a similar control schema but with changes to the fuzzy-logic rules and dynamic models. The base-layer comprises of a series of cascading PID loops aimed at stabilizing the ore feed Merensky/UG2 ratio (MUR) and inlet water ratio to specific setpoints (SP). The latter is provided by an

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

Firstly there was a serious flaw in the power configuration of the SAG mill and ball mill (both rated at 6000 kW with a single pinion drive). The capacity of the SAG mill was not fully utilized as the actual operating power draw was only 3358 kW. This meant it was only operating at 56 of its maximum power providing large room for improvement.

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

reduction technique can be found in Equations 1 2 and 3. In terms of SAG mill aspect ratio there are now mainly three tendencies the lower the medium and the higher aspect ratios

Get Price##### sag mill recirculating load rate

the effect of circulating load on sag mill power feed rate Milling circulating load on sag mill 7 Feb 2014 Ball Mill Recirculating Load for calculate sag Get Price sag mill recirculating load rate . sag mill recirculating load rate. A typical SAG mill with a smaller now higher scats discharge rate and .

Get Price##### maximum reduction ratio of sag millisikhovaprojects

Reduction in the high capital cost associated with comminution circuits limitations are the single stage AG/SAG mill circuit and the rod mill circuit. However all circuit types eventually reach a maximum single . maximum size of quality steel rods and the required aspect ratio of the mills.

Get Price##### (PDF) A comparison of wear rates of ball mill grinding media

The grinding medium should provide maximum performance minimum wear rate and highest grinding transfer to cost ratio (Jankovic Wills Dikmen 2016). It is important to predict the rate of mill

Get Price##### Mill Reduction Ratio

Reduction Ratio The reduction ratio R in rod mills varies from 2 and 20 depending on the characteristics of the usual reduction ratio is about 8 According to Bond 4 the reduction ratio is a function of length and diameter of the mill The optimum reduction ratio. Get Price Rod Mill Design Calculations. The mill diameter low or high ratio of

Get Price##### C. Wang S. Nadolski O. Mejia J. Drozdiak B. Klein

the HPGRball mill circuit achieved a 21 reduction in energ y consumption over the existing SAGball mill circuit at the same P 80 grind size of 160 µm. At a grind of 80 passing 75 µm the HPGRstirred mill circuit showed a 34 reduction in energy compared to the base case. It

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