Blog Center
1. Home >
2. Blog >
3. Ball Mill

# Specific Comminution Energy Of Ball Mills

The Coalition for Energy Efficient Comminution (CEEC) has been established and is supported by a broad range of mining sector companies keen to accelerate awareness, ... A new general formula to predict the specific energy of grinding in ball mills and vertimills. Pechea. Published in Proceedings of the IMPC2020 Congress, SAIMM

Get Price
• specific comminution energy of ball mills 2012

specific comminution energy of ball mills 2012. Consultants - EdRockMan IV LLC. ... A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing processes paints pyrotechnics ceramics and selective laser sintering. The effect of feed moisture on the comminution

Get Price
• COMMINUTION CIRCUITS A SUMMARY OF ENERGY

Ball Mill Survey power draw at VFD input kW 13,055 Power draw at pinion kW 11,914 SMC Calculations Coarse particle tumbling specific energy, W a kWh/t 8.21 Fine particle tumbling specific energy, W b kWh/t 5.15 Pebble crushing specific energy, W c kWh/t of fresh feed 0.12 Total Predicted Specific Energy kWh/t

Get Price
• Relationships between comminution J energy and

tional ball mills (fine particles) it is labelled Mib, W is the specific comminution energy at pinion (kWh/t), x 2 is the 80% passing size for the product ( m) and x 1 is the 80% passing size for the feed ( m). [9] The work index related to the breakage property of an

Get Price
• Specific Comminution Energy Of Ball Mills

Specific comminution energy of ball mills 2012 pdfthe test determines the bond rod mill work which is used with bonds third theory of comminution to calculate comminution wikipedia comminution is the reduction of solid materials from one average particle size to a smaller average particle machines like the ball mill vertical roller mill

Get Price
• Estimation of the Specific Energy Requirement for Size

Nov 08, 2016 Design engineers generally use Bond equation to estimate specific energy requirements using a parameter called, Bond Work Index, which is determined experimentally in a laboratory ball mill [1–3]. Morrell [4–6] has proposed different equations for the specific energy and Work Index. Both the set of equations have been widely tested

Get Price
• Comminution Testing Equipment in Mineral Processing

The total specific energy input in Kwh per short ton, or the energy register, required to produce each product size, is listed in Col. (A) of Table I. Col. (B) lists the energy input required per ton of rod mill feed, and Col. (C ) lists the energy required, per ton of ball mill feed. It is seen from Fig. 1 that the energy

Get Price
• A Review of Advanced Ball Mill Modelling

A more in-depth look at ball mill operation clearly sug - gests the richness of the information hidden behind the value of specific energy in an operation, which should be regarded as merely an average number. The emphasis on this number suggests, in principle, that it would not mat-ter how the material receives energy, just the amount

Get Price
• Energy efficiency • Energy intensity in copper and gold

While complete data for SAG and ball mills were available, only partial data were obtained for crushers and post-grinding, so that some results were estimated. Fig. 17 presents the results for the specific comminution energy for the grinding of copper ore. The average consumption is 1.223 MWh/t Cu

Get Price
• Energy Use of Fine Grinding in Mineral Processing

Dec 18, 2013 where W is the specific grinding energy (kWh/t), W i is the Bond ball mill work index (kWh/t), F80 is the feed 80 pct passing size (μm), and P80 is the product 80 pct passing size (μm). It can be seen that in the regime in which the Bond equation is valid, energy use increases exponentially as product size decreases with constant feed size

Get Price
• Comminution Circuit Design for the Constancia Project

The specific energies of the SAG and ball mills were determined using AusGrind (Ausenco’s in-house software) (Lane, Foggiatto, Bueno and McLean, 2013 and Morrell’s ) method. SAG mill specific energy was a function of the inverse of the Axb value, the mill geometry and the mill operating conditions

Get Price
• (PDF) Comparing energy efficiency of multi-pass high

It is therefore important to consider methods for comparing comminution energy efficiency on a fair basis. 7 Performance benchmarking The specific energy used by each circuit is calculated by totalling the specific energy of each comminution step including the calculated grind energy from the Bond ball mill

Get Price
• Study on the Selection of Comminution Circuits for a

Standard drop weight, SMC, and Bond ball work index tests have been conducted to investigate the comminution circuit of a magnetite ore located in Eastern Hebei, China. In addition, simulations based on JKSimMet and Morrell models have been performed to compare the specific energy consumption of various comminution circuits. According to the desired capacity and the ore communition

Get Price
• Energy efficiency - IsaMill™ Advantages | Isamill

The high energy efficiency of stirred mills compared to ball mills is well understood. The use of tower mills as an energy efficient alternative to secondary and regrind ball milling became a common inclusion in the latter part of the previous century. ... the problem of inefficient use of energy in comminution was so serious that new

Get Price
• APPENDIX A. USE OF THE Mia, Mib, Mih, Mic IN

i = Specific comminution (kWh/tonne) x 2 = 80% passing size for the product ( m) x 1 = 80% passing size for the feed ( m) f(x j) = -(0.295 + x j/1000000) (Morrell, 2006) (2) For tumbling mills the specific comminution energy (Wi) relates to the power at the pinion or for gearless drives - the motor output. For HPGRs it is the energy inputted

Get Price
• SPECIFIC COMMINUTION ENERGY - SMC Testing

The Total Comminution Specific Energy window at the top of the page gives the specific energy for the entire circuit. It is made up of the sum of any crusher/HPGR net specific energies plus the tumbling mill circuit specific energy at pinion. The associated 95% confidence levels are also shown and are based on the accuracy of model as indicated by the data base (see Figure 3). This indicates that the

Get Price
• The energy efficiency of ball milling in comminution

In a second approach, comminution efficiency is based on comparing the energy to produce some size distribution parameter of the product from ball milling with that by single-particle breakage. For

Get Price
• Comminution - an overview | ScienceDirect Topics

Typical specific energy values (in kWh t −1) are (Morrell, 2014b): primary crushing (i.e., 1000-100 mm), 0.1-0.15; secondary crushing (100-10 mm), 1-1.2; coarse grinding (10

Get Price
• (PDF) Measurement of electrical energy consumption in a

The specific comminution energy for milling in the Bond test mill appears to be based on 60 J/rev, which defines the net energy required in the Bond ball mill to realise the same grinding

Get Price
• Predicting the Overall Specific Energy Requirements of

conventional ball mills (fine particles) it is labelled M ib. For HPGRs it is labelled M ih Wi = Specific comminution energy at pinion (kWh/tonne) x2 = 80% passing size for the product (microns) x1 = 80% passing size for the feed (microns) f(x j) = -(0.295 + x j/1000000) (Morrell, 2006) (2)

Get Price
• Improving energy efficiency in comminution

Oct 01, 2018 SLW: Another example of improving wear life for increased mill performance, including reduced specific energy consumption, is given in a paper by Sever Ciutina (Metso MLS) and R.J.Soriano (Senior

Get Price