### Ball Mill Design/Power Calculation

Jun 19, 2015 & 0183;& 32;Ball Mill Grinding Capacity Calculator; Ball Mill Motor/Power Sizing Calculation; Ball Mill Design/Sizing Calculator; The power required to grind a material from a given feed size to a given product size can be estimated by using the following equation: where: W = power consumption expressed in kWh/short to HPhr/short ton …预计阅读时间：5 分钟

### Ball Mill Capacity and Power Consumption Relationship to ...

Nov 16, 2020 & 0183;& 32;Accordingly power consumption per unit of capacity, Po will be expressed in kilowatt hours per short ton, or kw-hr per ton. In all equations D refers to the inside diameter of the mill in feet and v to the peripheral speed of the mill in feet per minute inside the liners. It is the general belief that the capacity, T, of a tumbling mill is ...

### Fluid mechanics of slurry flow through the grinding media ...

Dec 31, 1995 & 0183;& 32;Depending on the mill size the SAG mills draws between 2 MW and 17 MW. The product from the SAG mill is further reduced in size using pebble crushers and ball mills. Hence, typical gold or copper ore requires between 2.0 and 7.5 kWh per ton of energy to reduce the particle size.

### PDF CALCULATION OF THE POWER DRAW OF DRY …

A.S. Erdem, Ş.L. Erg& 252;n, A.H. Benzer 222 KW b D V p fC s C S s s ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ = & 215; & 215; − & 215; & 215; − 9−10 0.3 2 0.1 4.879 3.2 3 1 1 where Kwb – Kilowatts per metric ton of balls D – Mill diameter inside liners in meters Vp – Fraction of mill volume loaded with balls fCs – Fraction of critical speed Ss – Ball size factor To determine the power that a dry grinding ...

### Ball Mill Motor Power Draw Sizing and Design Formula

Oct 19, 2015 & 0183;& 32;Ball Mill Motor Power Draw Sizing and Design Formula. The following equation is used to determine the power that wet grinding overflow ball mills should draw. For mills larger than 3.3 meters 10 feet diameter inside liners, the top size of the balls used affects the power drawn by the mill. This is called the ball size factor S.

### PDF Ball mill media optimization - Metcom Tech

K A constant, 350 for wet overflow mills, etc. WI Bond test Work Index, kWh/short ton. SG Ore specific gravity. Cs Mill speed in percent of critical. ID Mill inside liners, working diameter, feet. It pre-dated semi- autogenous grinding, and needs to be adjusted for those appli ions. Other guides e.g. Azzaroni,

### QUESTION FOUR a What is the power required to crush ...

The work Index for limestone may be taken as 12.74 kWh/short ton. 5 Points b If a ball mill requires 3 kWh per ton of feed to reduce a feed of 1600 micron size to a product of 400 microns size, calculate the work index. 5 Points.

### 80 tons ball mill - hitlershollywood.de

80 tons ball mill. Metallurgical ContentSizing a Ball or Rod Mill Sizing a Crusher using 1200 Wi of Ores from DatabaseHow to Find the Work Index WiHow to Find the Work Input WHow to Correct Calculated Work Indexes for Unnatural FeedsHow to Find Impact Crushing Strength From the Work IndexHow to Find Work Index From Closed Circuit Grindability TestsHow to Find Work Index From Open Circuit

### Grinding Balls and Rods

Oct 20, 2016 & 0183;& 32;Steel consumption of balls is spread out over an even greater range. Some indi ion as to media consumption can be obtained from power consumed in grinding. For example, balls or rods will generally wear at a rate of about 1 for each 6 or 7 kilowatt hours consumed per ton of ore. Liner consumption is generally about one-fifth of the media consumption.

### PDF Size Reduction Equipment

Parameter Single disk runner Double disk runner. Disk Diameter 250-1400 mm 250-1400 mm Speed 350-700 rpm 1200-7000 rpm Capacity 0.5- 8 ton/hr 0.5-8 ton/hr Product size Passed through 200 mesh i.e 0.074mm Passed through 200 mesh i.e 0.074mm Power consumption 8-80 kWh per ton of product 8-80 kWh per ton of product.

### OSTI.GOV Technical Report: Improving Energy Efficiency Via ...

21/07/2006 & 0183;& 32;The product from the SAG mill is further reduced in size using pebble crushers and ball mills. Hence, typical gold or copper ore requires between 2.0 and 7.5 kWh per ton of energy to reduce the particle size. Considering a typical mining operation processes 10,000 to 100,000 tons per day the energy expenditure in grinding is 50 percent of the cost of production of the metal. A research team ...

### Efficiency of Ball Mills vs. Roller Mills

14/11/2011 & 0183;& 32;I would like to know if anybody knows the power consuption in KW per ton of a ball mill milling cement clinker at a feed of 1" minus in order to produce Portland Cement. I would also like to get the same info for a roller mill. 7th April 2008, 9:12 2. D.Lucut. View Profile View Forum Posts Join Date Apr 08 Posts 2. The answer is a litle bit complex. The specific grinding power consumption for ...

### Pulp Densities Within Operating Ball Mills - OneMine

The ore was hard but it was possible to grind & 189; in. feed so that all would pass an 8-mesh screen with a power expenditure in the ball mill of less than 2 1/2 kw-hr. per ton and with a circulating load of less than 50 per cent. With so high a dilution in the feed to the mill, it was feared that steel wear would be very high. However, the mill was not noisy, and in order to find exactly the ...

### Fuel Preparation Industrial Efficiency Technology and Measures

In India, savings between 1.0-1.7 kWh per ton coal have been realised, depending on the fineness of coal. In China CO 2 emissions can be reduced by 1.3 kg per ton of coal processed. In India CO 2 emissions can be reduced byAround 1.4 kg per ton of coal processed. Installation costs are estimated to be US$ 0.01 per ton of clinker produced annually.

### ball mill operating cost per ton - ralcolor.de

The calculated.ball mill power consumption is 13.8 Kwhr/Ton of crude. The cyclone overflow is deslimed, and upgraded in finisher magnetic separators. Diameter to Length Ratio in Mills Rod mill L/D ratio is about 1.4:1. 1 ton per hr ball mill in operation YouTube. Mar 10, 2013& 183; 1 ton ball miill operating 24 hrs a day near chinhoyi zimbabwe.

### ball mill tons per hour - Mining

A 1.83-m diameter by 3.66-m long measured inside the liners industrial ball mill grinds20 tons per hourof a feed with 80% passing 13 mm size analysis to a product with 80% passing 75 micro size analysis. Operating specific grinding energy is 10 kWh per ton of ore ground. More Details. Crusher, dryer Centbro Machinery STM Equipment Co. ClinkerBall Millproduction line with 50tons per ...

### Cement mill notebook - SlideShare

07/01/2015 & 0183;& 32;Specific power consumption for clinker/gypsum grinding in a ball mill should be approximately: 3000 cm2 /g 24.4 kWh/t 3200 cm2 /g 26.8 kWh/t 3400 cm2 /g 29.4 kWh/t 3600 cm2 /g 32.0 kWh/t 3800 cm2 /g 34.7 kWh/t 4000 cm2 /g 37.5 kWh/t Note: The specific power demand of large grinding units is 10-15% better than that of small mills. 8.1 Calculation of Cement Mill Power …

### Mill grinding - Wikipedia

E is the energy kilowatt-hours per metric or short ton W is the work index measured in a laboratory ball mill kilowatt-hours per metric or short ton P 80 is the mill circuit product size in micrometers; F 80 is the mill circuit feed size in micrometers. Buhrstone mill Another type of fine grinder commonly used is the French buhrstone mill, which is similar to old-fashioned flour mills ...

### Influence of an Organic Polymer in Ball-Mill Grinding of ...

& 0183;& 32;in Ball-Mill Grinding of Quartz, Dolomite, and Copper Ore By A. R. Rule. A. J. Fergus. and C. B. Daellenbach UNITED STATES DEPARTMENT OF THE INTERIOR Donald Paul Hodel. Secretary BUREAU OF MINES Robert C. Horton, Director . Library of Congress Cataloging in Publi ion Data: Rule, A. R. Albert R, Influence of an organic polymer in ball-mill grinding of quartz, dolo& 173; mite, and …

### NPTEL

& 0183;& 32;A is 15kWh/ton. 6.26 kW 5.26 kW 4.26 kW None of the above No, the answer is incorrect. Score: 0 Accepted Answers: 5.26 kW For Q.No. 3 the actual power consumption, when eﬃciency of the grinder is 15%, is 35.1 kW 49.6 kW 78.9 kW None of the above No, the answer is incorrect. Score: 0 Accepted Answers: 35.1 kW 150kW power is required to crush 90t/h of material. If 80% feed and 80% product …

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