# kwh t ball mill

### Comparison of Ore Hardness Measurements for

Bond Ball Mill Wi kWh/t (Crushed ore) Dawson 8.3 10.4 6.6 6.5 8.0 10.7 8.4 Bond Abrasion Test A i grams Hazen 0.010.060.080.100.090.390.12 UCS psi (average of 3 subsamples) ATT 7260 4343 890 860 1913 1970 2873 It is i

Get Price### COMMINUTION 10

ball mill work index (13 kWh/t) had SAG hardness as low as 1.4 kWh/t in one case (Aurora) and up to 34 kWh/t in the other case where NICO data was reported in January 2010 at the CMP in Ottawa. This proved that a Bond BM

Get Price### SAG MillGrinding Solutions Ltd

Grinding Solutions offers the following tests for SAG mill testing and/or sizing. JKTech Drop Weight The JKTech Drop-Weight Test measures the breakage characteristics of an ore for five size fractions in the range of 13 to 63 mm at various energy inputs (0.1 to 2.5 kWh/t). The ore-specific parameters derived from these measurements can be used in

Get Price### CORRELATION BETWEEN BOND WORK INDEX

Journal of Engineering Sciences Assiut University Vol. 40 No 1 pp.271- 28 0 January 2012 271 CORRELATION BETWEEN BOND WORK INDEX AND MECHANICAL PROPERTIES OF SOME SAUDI ORES Gamal S. Abdel

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32kWh /t 1.8 kWh/t 17 .7 97 24 ・04kWh t Work Index14.5k Wh /t BondのボールミルWork 16.

Get Price### Ball Mill Design Power Mill (Grinding) Iron Ore

Ball Mill Power requirement kWh/t 10 0 P = W x Q xEFT P = 16 2 x 50 x 1 3 = 1053 kW Therefore a ball mill ø Wi = 15 Wi = 100 Wi = 90 WF = 2 Wi = 10 Wi = 70 Wi = 60 Wi = 3 Wi = 25 1 0 Wi = 30 Material size in microns

Get Price### Benchmarking Morrell MihTropicana

Ball mill E ball = MiEquation(20.21 750.0 3500.0) 1.000 MiEquation(25.390 75.0 750.0) = 18.41 kWh/t Ball mill model Use the wet overflow ball mill model Quantity 1 Mill dimensions diameter 24 ft EGL 43 ft 3

Get Price### Factors That Affect Ball Mill Grinder Capacity And Quality

2019/08/18 · Ball mill grinder is the important equipment during the production of cement. Its capacity and quality even can directly affect the effiency of whoile production line. Then what will affect the capacity and quality of ball mill

Get Price### Comparing ball and vertical mills performance An

seen the vertical mill consistently presented lower net specific energy consumption than the ball mills which operate on the same circuit. The averages were 11.3 11.7 and 6.5 kWh/t respectively for ball mill 01 ball mill 02 and

Get Price### Ball Mill Design/Power Calculation

2018/04/08 · 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

Get Price### Grinding of Weakly Agglomerated Black Sand Ore

The obtained results were 3.0 kWh/t for 2-3 inch are by impact method 9.9 1 (Wh/t) by Hardgrove method and 13.1 kWh/t by standard ball mill method (screening size is 65 mesh) respectively. It is thinkable that these differences of the

Get Price### Multi-Compartment Rod/Ball Mill Evaluation on

4 Table 2 F80 and BWI values Samples F 80 μm Rod WI (kWh/t) Ball WI (kWh/t) Blend 1 280 Blend 2 405 4.6 Blend 3 1800 8.1 Blend 4 3700 9.2 Blend 5 4900 18.0 11.0 Blend A (Survey) 56000 16.8 11.0

Get Price### Optimization of mill performance by using

Optimization of mill performance by using online ball and pulp measurements In the platinum industry by increasing the solid content in the slurry the product becomes finer. At a higher percentage solid than 73 to 74 the product

Get Price### JISM4002 2000 の

2008/03/12 · JIS M 4002 2000 の Testing method of grinding work index 1. このは びこれにずるのをボールミルをいて するについ

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reduction of approx. 0.5-1.5 kWh/t-clinker 50 57 Finishing Pre-grinding roller mill systems Specific electric energy consumption in finishing process reduction of 10-20 Grinding capacity of finishing ball mill increase of 30-60 .

Get Price### 20150821 Morrell Method-GMG-ICE-v01-r01

mill revolution (laboratory ball mill) HPGR High Pressure Grinding Roll Mi Generic term for hardness parameters Mia Mib Mic and Mih Mia Coarse ore (> 750 µm) work index in tumbling mill circuit(s) (kWh/t) Mib Fine material Mic

Get Price### Application of Operating Work Indices in

AG/SAG Wio AWio (kWh/t) 28.5 Ball Mill Wio BWio 8.6 Circuit Wio OWio 14.6 Bond Ball Mill Work Index BWi kWh/t 13.4 Bond Rod Mill Work Index RWi kWh/t 18.1 Table 1. Example of AG/SAG Ball Mill Circuit Wio 1

Get Price### Energy and exergy analyses for a cement ball mill of a

Ball mill (kWh/t) 30.0 28.8 Separator fan (kWh/t) 2.6 2.6 Others (kWh/t) 5.3 5.1 Sum (kWh/t) 37.9 36.5 Product Production rate (t/h) 193.7 203.8 Fineness (cm 2 /g) 3000 3010 Residual on sieve 45 μm ( ) 21.4 14.6 Efficiency 80.5

Get Price### 20150505 Bond Efficiency-GMG-ICE-v1-r04

(kWh/t) W is the specific energy input (kWh/t) P80 is the 80 passing size of product (µm) and F80 is the 80 passing size of circuit feed (µm). 2. Calculate the Standard Circuit Bond Work Index (WiSTD) for the material being

Get Price### Ball mill grindingRamkrishnaLinkedIn SlideShare

2016/09/19 · Ball mill grindingRamkrishna 1. Improvement of Ball MillImprovement of Ball Mill grinding efficiencygrinding efficiency Presented ByPresented By Ramkrishna HalderRamkrishna Halder Under the guidance ofUnder the

Get Price### 20150821 Morrell Method-GMG-ICE-v01-r01

mill revolution (laboratory ball mill) HPGR High Pressure Grinding Roll Mi Generic term for hardness parameters Mia Mib Mic and Mih Mia Coarse ore (> 750 µm) work index in tumbling mill circuit(s) (kWh/t) Mib Fine material Mic

Get Price### Calculation of energy required for grinding in a ball mill

Calculation of energy required for grinding in a ball mill. Int. J. Miner. Process. 25 41-46. The Bond work index Wi as an indicator of the grindability of raw materials is not a material constant but rather it changes with change of

Get Price### Vertical roller mill for raw Application p rocess

- 1Item Vertical roller mill for raw materials Application p rocess Raw material process Background Grinding raw materials needs lots of energy. Tube mills had been used for grinding but the energy efficiency level was lower.

Get Price### MODELING THE SPECIFIC GRINDING ENERGY AND

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 not only D f d w i

File Size 256KB Get Price### Energy-Efficient Technologies in Cement Grinding

2016/10/05 · The energy consumption is 2.5–3.5 kWh/t and about 10 kWh/t when recycling of the material is used. The comminution efficiency of a HPGR is better than ball mills such that it consumes 30–50 of the specific energy as

Get Price### LARGE DIAMETER SAG MILLS NEED LARGE DIAMETER

2001/01/01 · Ball mill scale-up is primarily by increasing mill diameter. This is subject to diameter relationships varying from the square root of the diameters in an inverse ratio to the diameters raised to

Get Price### Orway Mineral Consultants Canada Ltd. Mississauga

BM = Ball mill specific energy from T 80 1.7 mm to final product P 80 using Bond s Law (kWh/t) W T = Total grinding mill circuit specific energy (kWh/t) Note that K BM is the composite of EF3 EF4 and EF5 factors for ball

File Size 1MBGet Price### 1-day Technical Seminar

o The single biggest consumer of electricity is the cement mill which consumes upward of 25 kWh / t of cement ground. Electrical energy consumption for cement production 5 24 38 6 22 5 Quarrying preblending

Get Price### TECHNICAL NOTES 8 GRINDING R. P. King

A simplified picture of the mill load is shown in Figure 8.3 Ad this can be used to establish the essential features of a model for mill power. The torque required to turn the mill is given by Torque T Mcgdc T f (8.9) Where Mc is thef

Get Price### MODULE #5 FUNCTIONAL PERFOMANCE OF BALL

(t/kwh) Effective mill power draw (kw) We can then define the grinding efficiency of a ball mill as the ratio between the specific grinding rate of the coarse solids in the ball mill

Get Price### Energy-Efficient Technologies in Cement Grinding

2016/10/05 · The energy consumption is 2.5–3.5 kWh/t and about 10 kWh/t when recycling of the material is used. The comminution efficiency of a HPGR is better than ball mills such that it consumes 30–50 of the specific energy as

Get Price### Comparing ball and vertical mills performance An

seen the vertical mill consistently presented lower net specific energy consumption than the ball mills which operate on the same circuit. The averages were 11.3 11.7 and 6.5 kWh/t respectively for ball mill 01 ball mill 02 and

Get Price### equipment to use to calculate KWh/tPage 1 of 1

2016/09/06 · equipment to use to calculate KWh/t Good day What pieces of equipment should i use to calculate KWh/t. My grinding system has a roll press ball mill and separator. Should i used 1. Just the ball mill roll press separator

Get Price### 20150505 Bond Efficiency-GMG-ICE-v1-r04

(kWh/t) W is the specific energy input (kWh/t) P80 is the 80 passing size of product (µm) and F80 is the 80 passing size of circuit feed (µm). 2. Calculate the Standard Circuit Bond Work Index (WiSTD) for the material being

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