ball consumption in sag mill

  • SAG/Ball Mill Optimization KnowledgeScape

    Even though production was dramatically improved the product size of the secondary ball milling was reduced and recovery increased. The results in SAG-Mill line 2 are even more dramatic. Because of segregation on the coarse feed stockpile SAG-mill 2 receives a higher percentage of coarse material. Based on these test results a 6.7 m diameter 2.1 m length SAG mill and a 3.3 m 6.1 m ball mill were installed for commercial operation in closed circuit with a hydrocyclone. The SAG mill had a 6–8 ball charge and the power consumption was 8 kWh/t which agreed well with the expected value. 9.6. Problems. 9.1

  • Autogenous and Semi-Autogenous MillsScienceDirect

    Based on these test results a 6.7 m diameter 2.1 m length SAG mill and a 3.3 m 6.1 m ball mill were installed for commercial operation in closed circuit with a hydrocyclone. The SAG mill had a 6–8 ball charge and the power consumption was 8 kWh/t which agreed well with the expected value. 9.6. Problems. 9.1 Even though production was dramatically improved the product size of the secondary ball milling was reduced and recovery increased. The results in SAG-Mill line 2 are even more dramatic. Because of segregation on the coarse feed stockpile SAG-mill 2 receives a higher percentage of coarse material.

  • Ball Mill Design/Power Calculation

    The basic parameters used in ball mill design (power calculations) rod mill or any tumbling mill sizing are material to be ground characteristics Bond Work Index bulk density specific density desired mill tonnage capacity DTPH operating solids or pulp density feed size as F80 and maximum chunk size product size as P80 and maximum and finally the type of circuit open/closed Online Optical Monitoring of the SAG Mill Chamber Sepúlveda Duarte. 79. 14 00. SAG and Ball Mill Online Ball Charge Level Measurement by Sound Churata. 80. 14 15. Teck s HVC Adaptive Cruise Control for Secondary Grinding Nuñez

  • MODELING THE SPECIFIC GRINDING ENERGY AND BALL

    21 CONCLUSIONS Continued In the present work equations were also derived giving zthe ball-mill power drawP as a function of its dimensions internal mill diameter D and length L zthe ball-mill power drawP as a function of the feed D f (mm) and the product size d (mm) the Bond work index w i (kWh/short ton) and the mill throughput T (short ton/h) zthe ball-mill dimensions (D and L) when The mill product can either be finished size ready for processing or an intermediate size ready for final grinding in a rod mill ball mill or pebble 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.

  • PAI SAG Mill TrainingYouTube

    Jan 08 2016 · In this training module we ll cover the workings of a semi-autogenous grinding mill or SAG mill that s designed to be the first stage of sag mill power consumption . sag mill ball consumption rate penzion-slavkovskyeu. sag mill ball consumption rate Ball mill Wikipedia A ball mill is a type of grinder used to grind materials. Modelling SAG milling power and specific energy.

  • sag mill ball consumption rateofspescaracolli

    sag mill power consumption . sag mill ball consumption rate penzion-slavkovskyeu. sag mill ball consumption rate Ball mill Wikipedia A ball mill is a type of grinder used to grind materials. Modelling SAG milling power and specific energy. Fig. 2 shows the variation of the average torque and power with mill speed for the ball mill described above with a fill level of 50 . The torque increases slowly until the peak is attained around N=80 .As the amount of cataracting increases the balance of the charge improves and the torque required to maintain the asymmetric charge position declines steadily.

  • how to calculate the energy consumption of a ball mill

    Application of SPI for Modeling energy consumption in Thus the ball mill consumes 12.89 kWh/t more energy than the SAG mill in producing the final product. . a Starkey mill was used to measure SAG mill power. Read more Pc SAG mill power consumption kW 600 100 of the fresh feed in the size range 152 25 mm. grinding mills power consumption kw The Power Consumption Calculation of. This dynamic simulation of a SAG and two ball mills simulates the grinding process of one SAG Mill follwed by two ball mills with a sump pump and a battery.

  • Optimization of mill performance by using

    Optimization of mill performance by using online ball and pulp measurements Soon after a stop a mill is a dangerous place to enter for the personnel tasked with taking measurements or samples. Crash stops are difficult to handle. The mill and all feed streams should be stopped simultaneously but often they are stopped around about the same time. Fig. 2 shows the variation of the average torque and power with mill speed for the ball mill described above with a fill level of 50 . The torque increases slowly until the peak is attained around N=80 .As the amount of cataracting increases the balance of the charge improves and the torque required to maintain the asymmetric charge position declines steadily.

  • SAG Mill Ball Size Evaluator Evaluation Factors

    SAG Ball consumption is "average" at 400 g/t while Ball Mill grinding media (3″ balls) usage in 550 g/t. Yet you add steel and nothing seems to happen tonnage is not noticeably improved. You need more tonnage and could actually use a larger/coarser transfer size from the SAG to Ball Mill. Ball Consumption In Sag Mill. Comparison of energy efficiency between ball mills . Comparison of energy efficiency between ball mills and stirred . 1970s by AG and SAG mill . Bond ball mill energy consumption in relation to mill . Get Price And Support Online Optimizing your SAG mill operationInternational .

  • TECHNICAL NOTES 8 GRINDING R. P. KingMineral Tech

    mill is the energy consumption. The power supplied to the mill is used primarily to lift the load (medium and charge). Additional power is required to keep the mill rotating. 8.1.3 Power drawn by ball semi-autogenous and autogenous mills A simplified picture of the mill load is shown in Figure 8.3 Ad this can be used to establish the essential grinding ball consumption and increased risk of liner damage. Also if underloaded significant throughput will be lost in the fine and mid-size fractions as the surface area for attrition is reduced. Typically SAG mill control is performed with respect to bearing pressure and other process variables

  • How energy efficient is HPGR ceecthefuture

    advantages over SAG mills • 2.4 kWh/t vas 12.0 kWh/t • Greater flexibility • Lower unit cost. Of course the installed power for HPGR/Ball mill circuits vs SAG/Ball Mill circuits are generally beneficial but nothing like as advantageous as this however the above number offers a big incentive to plant designers. ball consumption in sag mill use a Semi Autogenous Grinding (SAG) mill ball charge of 8 v/v followed by a ball >>TYY LXP grinding media consumption in ball mill

  • difference between sag mill and ball mill Solution for

    Oct 22 2012 · Before the Esperanza order FL s largest SAG mill measured 38 and its ball mills 26 . To the average person the difference between a 38 and a 40 SAG Autogenous mills semi-autogenous mills and ball mills for wet SAG and ball mill for gold ore grinding. One of three SAG mills with 9.75 m diameter and 2 x 4000 kW drive power. Dec 18 2013 · This quantity is small compared to the power used by a semi-autogenous mill and a ball mill in a primary grinding circuit a ball mill can have an installed power of up to 15 MW while installed power for a SAG mill can go up to 25 MW. However the energy used for fine grinding is still significant.

  • Optimization of mill performance by using

    Optimization of mill performance by using online ball and pulp measurements Soon after a stop a mill is a dangerous place to enter for the personnel tasked with taking measurements or samples. Crash stops are difficult to handle. The mill and all feed streams should be stopped simultaneously but often they are stopped around about the same time. Oct 12 2017 · SAG mill make use of steel balls included with some large and hard rocks for grinding. These mills utilize the balls in making the large fragments of materials broken into pieces. The ball charge of a SAG mill is about 9 to 20 .This process takes place inside the large rotating drum of SAG mill which is filled with balls partially. Interior of

  • Ball Mill Principle construction Working and use of

    Oct 02 2018 · Hello friend I m chadra Prakash Pathak from Lucknow. This video is make on the topic of Ball Mill from pharmaceutics-1 watching this video and Gain much knowledge about the Ball Mill because its Oct 02 2018 · Hello friend I m chadra Prakash Pathak from Lucknow. This video is make on the topic of Ball Mill from pharmaceutics-1 watching this video and Gain much knowledge about the Ball Mill

  • OUTOTEC GRINDING TECHNOLOGIES

    single-stage SAG mills to the largest mill in the worldwith a 40-foot diameter and 28 MW of motor power. Ball mills Ball milling is the most common application for horizontal tumbling mills. Outotec offers a full range of ball mills to suit a wide variety of duties from a few hundred kW all the way up to 20 MW and beyond. Rod millsOverview

  • Ball Mill Grinding Ball Consumptionhaagdeko

    Ball consumption in sag mill luigispizzapastashawano sag mill feed the beast wiki 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. The largest ringmotor- driven mill in the world is a 36-ft diam. 16 000-hp SAG mill that processes up to 2 000 tons of ore per hour. Located at Kennecott Utah Copper near Salt Lake this mill

  • Ring gear drives huge grinding mill Machine Design

    The largest ringmotor- driven mill in the world is a 36-ft diam. 16 000-hp SAG mill that processes up to 2 000 tons of ore per hour. Located at Kennecott Utah Copper near Salt Lake this mill Energy Saving Ball mill Capacity 0.62–90 t/h Applicable Material Ball mill is key equipment for grinding materials after crushing process. It is used to grind kinds of materials into fine powder 20-75micrometer. Based on discharging type It could be grate type overflow type etc.

  • Optimizing your SAG mill operationInternational Mining

    In the past when primary secondary and tertiary crushers fed material directly to large ball mills the energy efficiency of the concentrator was determined for the most part by the ball mill operation whereas now the energy efficiency of a plant often rests largely on the SAG mill operation. Online Optical Monitoring of the SAG Mill Chamber Sepúlveda Duarte. 79. 14 00. SAG and Ball Mill Online Ball Charge Level Measurement by Sound Churata. 80. 14 15. Teck s HVC Adaptive Cruise Control for Secondary Grinding Nuñez

  • sag mill ball consumption rateofspescaracolli

    sag mill power consumption . sag mill ball consumption rate penzion-slavkovskyeu. sag mill ball consumption rate Ball mill Wikipedia A ball mill is a type of grinder used to grind materials. Modelling SAG milling power and specific energy. A comparison of wear rates of ball mill grinding media.pdf Journal of Mining and Metallurgy 52 A (1) (2016 ) 110 # Corresponding author alex.jankovic

  • Ball millWikipedia

    A ball mill a type of grinder is a cylindrical device used in grinding (or mixing) materials like ores chemicals ceramic raw materials and paints.Ball mills rotate around a horizontal axis partially filled with the material to be ground plus the grinding medium. Different materials are used as media including ceramic balls flint pebbles and stainless steel balls. Product Description of Energy Saving Cylindrical energy saving grid ball mill is one of energy saving mills developed by our company which is easy to start and saves 20-30 energy. It is lined grooved ring plate which increases the contact surf

  • Selection of Comminution Circuits for Improved Efficiency

    • Single stage crush/single stage SAG mills and two stage crush/ball mill circuits are typically selected for low throughput plants (<50 t/h) where personnel costs are a large component of costs. • SAB circuits are typically selected for plants of 0.5 to 2 Mt/a. Application Of Spi For Modeling Energy Consumption. That is the sag mill produces about 10 more than the ball mill in the final producthe average consumed energy at sag and ball mills to produce one ton of final product was 23 kwht and 36 kwht respectivelyhus the ball mill consumes 12 kwht more energy than the sag mill in producing the final