### A Method of C alculating Autogenous/ Semi

SAG mills mimic the same shortcoming It follows that in order to obtain the speciﬁ c energy (SE) to achieve a certain transfer size based on the 80 per cent passing value an inefﬁ ciency factor must be applied to the SE of single stage ball mills rod mills or AG/SAG mills when calculating power according to the Bond Third Theory method Get price

### JME

studies a SAG mill sampler was designed and constructed and sampling sites were also prepared In addition a laboratory mill was designed and constructed in order to determine the SAG mill power index (SPI) and a formula for the SAG mill consumed power prediction was introduced [2] The formula is Get price

### Sag

Aug 01 2018As promised you can download for free my sag-tension spreadsheet calculator Take note that because of the complexity of the creep in a conductor it is not a factor in these calculations Also this calculator is only for even supports You can use this spreadsheet to verify the results in my sample computation in the previous post Get price

### Optimizing your SAG mill operation

It is imperative to ensure the efficient removal of both slurry and coarse pebbles (critical size) in order to ensure the efficient operation of AG/SAG mills Elimination of the above mentioned material transport problems will allow the mill to respond truly in terms of power draw for changes in mill load which depends on feed ore characteristics Get price

### factors that affect sag mill performance

factors affecting the performance of the sag mill Modelling SAG milling power and specific energy alterations etc) are the most important factors affecting the SAG mills performance Some operations have recognised an opportunity in the relationship between feed size and mill performance and manipulate feed size to and Get price

### MODELING THE SPECIFIC GRINDING ENERGY AND BALL

2 MODELLING THE SPECIFIC GRINDING ENERGY AND BALL-MILL SCALEUP Ball-mill scale up (Bond's Law)Data zBond work index w i zFeed D f and product d size (both 80% cumulative passing) Result The specific grinding energy w Mill power draw P = wT where T the mill capacity Mill dimensions (from Tables or charts) Get price

### power sed sag mill design calculations

power calculation formula of sag mill - greenrevolution A comparison of SAG mill power models - SAGMILLING COM SAG Mill power draw models are used in mill design and grinding circuit modelling to predict Ball charge is not explicitly used in the power formula but is considered in the mill charge density formula 1 Get price

### UTILITY LINE DESIGN CALCULATIONS

Location of Lowest Sag for Unequal Insulator Elevations FAULT CURRENT Three-Phase Secondary Fault Current Single-Phase Secondary Fault Current Single Phase Transformer Resistance and Reactance Three Phase Transformer Resistance and Reactance SUBSTATION DESIGN Substation Impedance CONDUIT SIZING Minimum Conduit Size ECONOMICS Load Factor Calculation Get price

### Sag Mill Ball Charge Calculation

sag mill ball charge calculation Previously at a mill stop the measurement of ball charge filling degree could be undertaken and will provide the static media charge angle static 143 an online measurement of the similar angle dynamic when the mill is running provides information about the dynamics of the charge [email protected] Get price

### RUS Bulletin 1724E

Bulletin 1724E–152 Page 6 the square of the span length This relationship provides the basis for another frequently used sag equation In a line section that has a ruling span Sr with the sag Dr and the same values of W and Th the sag D of any given span S can be calculated as follows 2 Get price

### A Mill Power Equation For Sag Mills

power calculation formula of sag mill greenrevolution PDF (1044 K) Journal of Mining and Environment (JME) power index (SPI) and a formula for the SAG mill calculation of liner weight and volume at each stage a Starkey mill was used to measure SAG mill power Contact Supplier Get price

### Autogenous and Semi

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 from 4 3m through 12 2m in diameter with powers as high as 28 000 kW Get price

### Choosing a SAG Mill to Achieve Design Performance

the correct power required to grind ore in a SAG mill by developing ore hardness variability functions for the ore body to be mined This paper describes the next step in the SAG design process which is choosing a SAG mill to accomplish the required specified design performance Get price

### AMIT 135 Lesson 6 Grinding Circuit

SAG Mill Circuit Example – Gold 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

### Simple Calculations for Cable Pulling

Sample power feeder installation Suppose you're involved in a design/build project for a paper mill and your client needs a 400A 15kV feeder to run as shown in Fig 1 (right) The client has required all feeders on the site to be pull-in-pull-out type in galvanized rigid steel (GRS) conduit Get price

### calculate sag ball mill circulating load

calculate sag ball mill circulating load Heavy Industry is a high-tech company integrating RD production and distribution and provides crusher sand making grinding equipment mobile crushing station etc mature products and solutions used in aggregate mining and waste recycling Get price

### sag mill critical speed calculation

sag mill critical speed calculation Ball Mill Critical Speed - Mineral Processing Metallurgy A Ball Mill Critical Speed (actually ball rod AG or SAG) is the speed at which the centrifugal forces equal gravitational forces at the mill shell's inside surface and no balls will fall from its position onto the shell Get price

### Ring

Mill load sharing – Maintains equal torques on dual pinion mills throughout the whole speed range Controlled rollback – Prevents backlash and reduces downtime Mill power ride through – Keeps the mill operating even under voltage dips Over-duty cycle – Avoids unexpected downtime if the mill Get price

### Calculating voltage dips in power systems

calculation of the dip magnitude can be made more accurate by implementing a calculation method called Moving Fault Node The third part focuses on how the calculation results are presented graphically Chapter 5 shows calculation results for a realistic small network and how the effect of changesin thenetworkcanbe calculated Get price

### Calculating Steel Ball Level In Sag Mill

The hardness of each sample was measured in terms of SAG power index SPI (for SAG grinding) and Bond Ball mill work index BWi (for ball mill grinding) A further measure the Minnovex crusher index Ci was also measured for use in the CEET program to determine SAG mill feed size (Kosick and Bennett 2001) Ball Mill Design/Power Calculation Get price

### Sag Tension in overhead Line?

The shape of sag increases with the increase in the length of the span For a small span ( up to 300 meters) parabolic method and large span ( like river crossings) catenary method is used for the calculation of sag and tension Factors affecting the sag Conductor weight – Sag of the conductor is directly proportional to its weight The Get price

### power sed sag mill design calculations

power calculation formula of sag mill - A comparison of SAG mill power models - SAGMILLING COM SAG Mill power draw models are used in mill design and grinding circuit modelling to predict Ball charge is not explicitly used in the power formula but is considered in the mill charge density formula 1 (3) EXAMPLE CALCULATION Get price

### Mill power draw models

Mill Power Draw Models The mill power draw models are used to predict how much power will be consumed by a particular type of mill mill geometry and set of mill operating conditions This power is transferred to the ore and used to predict the throughput when combined with the specific energy consumption models Get price

### Pump Power Calculation Formula

Hydraulic power Ph = Flow rate X Total developed head X Density X Gravitational constant Pump Efficiency is the ratio of pump input and output power i e Efficiency of the pump is the ratio water horse power to break horse power Pump input power calculation formula or pump shaft power calculation formula Pump Input Power = P Formula – 1 Get price

### What is the Sag in Transmission Lines and How to Calculate

Apr 14 2017What is the Sag in Transmission Lines and How to Calculate it ( Application of Sag Template) Transmission Lines Extra clearance of power line can be got either by reducing the span or by providing lower body extension which is depending on which alternative is most economical Get price

### How to Calculate Industrial Fan Power 6 Steps (with Pictures)

Sep 18 2019How to Calculate Industrial Fan Power Being able to properly calculate fan power is important for many different applications whether you are calculating the power of an industrial fan or a fan When calculating this you will Get price

### Cable Sag Error (Catenary Curve Effect) Calculator

This formula is wide-known as that for the catenary curve Cable sag (h) is value of cable form equation for point l/2 (formula 12) where l is the straightline distance between the position transducer and the application (Figure 1) For cable length we will use the formula for the length of the catenary Get price

### SAG Mill

The SAG Mill is a block added by the EnderIO mod A machine similar to a Pulverizer or a Macerator It is used to process resources to produce dust It accepts energy in the form of Redstone Flux or Minecraft Joule with an internal buffer of 100 000 RF and consumption of 20 RF per tick Get price

### SAGMILLING COM Mill Critical Speed Determination

Enter the width of a mill shell liner Note this is not the width of a lifter! You may use the Mill Liner Effective Width calculation to determine this value The mill critical speed will be calculated based on the diameter (above) less twice this shell liner width Mill Actual RPM Enter the measured mill rotation in revolutions per minute Get price

### Calculation of Sag Tension in Transmission Line

Calculation of Sag Tension Calculation of sag and tension in transmission line depend on the span of the conductor Span having equal level supports is called level span whereas when the level of the supports is not at an equal level is known as unequal level span Get price

### Sag and Tension Calculations

addition to this sag-tension data the program inputs consider conductor composition stress-strain properties adjustment for temperature and creep the annealing factor and tolerances These factors enable the program to calculate regular sags and tensions of ruling spans in Get price