β’Work Index, Wi, is the gross energy requirement in kilowatt hour per ton of feed (kWh/ton of feed) to reduce a very large particle to such a size that 80% of the product will pass through a 10micrometer, or 0.1 mm screen. β’If Dp is in mm, ππ=πΎ 1 π·ππ πΎ = 0.1ππ=0.3162ππ I =0.3162ππ 1 ππ β 1
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Ball mills, tube mills, vertical or horizontal roller mills are commonly used for grinding. The production of one ton of portland cement requires more than 1.5 ton of raw materials. Raw material preparation is an electricity intensive stage, typically requiring 25 to 35 kWh of electricity per ton of processed raw material, although the energy ...
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 ...
kilowatt-hour (kWh) per unit basis, primarily the metric ton (ton) or troy ounce. Data contained in tables pertaining to specific currently operating facilities are static, as the amount of electricity consumed to process or produce a unit of material changes over time for a great number of reasons.
5.2238 kWh,'ton 2) For the data given in question no.l, what is the work necessary per ton of the rock in the second grind? 7.0521 kWh/ton 9.3210 kWh/ton 5.4326 kWh/ton 3.4558 kWh/ton No, the answer is incorrect. Score: 0 Accepted Answers: 7.0521 kWh,'ton 3) 2 kW has to be supplied to a machine crushing material at the rate of 0.3 ton/h from 12 ...
Transcribed image text: Feed and product size distribution of a ball mill are given in the following table, Work index (Wi) of the ore ground is 12 kWh per ton, Calculate the energy required for this size reduction, If the capacity of the mill is 150 t/h, what would be the power consumption in the mill? (20 pnts) Mill Feed Wt, Size fractions (um) (%) +500 2,60 -500+400 6,25 -400+300 11,15 -300 ...
Ball Mills Steel Ball Mills & Lined Ball Mills. Particle size reduction of materials in a ball mill with the presence of metallic balls or other media dates back to the late 1800's. The basic construction of a ball mill is a cylindrical container with journals at its axis.
Ball mill power draw predicted from the Denver slide rule, kW 0 200 400 600 Calculated ball-mill power draw from the m odel derived, kW Data compared Line y=x Fig. 2. Comparison of the ball mill power draw from the Denver slide rule and the proposed model. Dashed line corresponds to y=x.
consumption of the mill has reduced by 2.16% to 24.97 kWh/ton farine which corresponds to a saving of 0.55 kWh per ton of farine production. Keywords : Cement, Raw mill, Vibration, Energy, Grinding
If P is less than 80% passing 70 microns, power consumption will be. Ball Mill Power Calculation Example. A wet grinding ball mill in closed circuit is to be fed 100 TPH of a β¦
two ball mills (3.3meters dia and 4.2 meters length), each driven by a motor of 600 kW. Each mill can be fed at the rate of 32 to 36 metric tons per hour (mtph).
The required mill net power P kW ( = ton/hX kWh/ton) is obtained from P = const. x c x q x nc x Li x Di2.5 where an approximate figure for the constant is 3.5 for rod mills, 4.0 for overflow ball or pebble mills and 4.5 for grate discharge ball or pebble mills.
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
ton per hour ball mill - suttonseedsindia.in. Mill (grinding) - Wikipedia. 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 β¦
The ore was hard but it was possible to grind Β½ 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 β¦
1200x4500 Ball mill 3 4 ton per hour to . 301,2020 in China, our ball mill sold to Korea, Asia Parameter of 1200X4500 ball mill Capacity : 2 6 ton per hour Power : β¦
Ball mill is a versatile grinding mill and has a wide range of applications. The mill can vary in size from small batch mills up to mills with outputs of hundreds of tons per hour. They are the most widely used of all mills. Roller mills. Roller mills are basically of two distinct types.
consumption of the mill has reduced by 2.16% to 24.97 kWh/ton farine which corresponds to a saving of 0.55 kWh per ton of farine production. ... The materials are ground in a ball mill until the ...
Bulk anode requires 7505 kg of slurry per day, 3753 kg per ball mill load. Ball Mill: 5 ton capacity, 37 kW, with yttria-stabilized zirconia lining and milling media. The other tape cast components are active anode (431 kg/day), backing layer (393 kg/day) and electrolyte (420 kg/day). These each require 0.5 ton capacity, 7.5 kW, with yttria-
Auto Chocolate Cocoa Ball Mill 1 Ton Per Hour. Auto chocolate cocoa ball mill 1 ton per hour manuafactures. comparing with refiner, ball mill has been improved with the advantages of low energy consumption, high productivity, low noise, super low metal content, easy to clean, onetouch operation, etc. in this way, it has shortened 810 times of milling time and saved 46 times of energy.
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, 10:12 #2. β¦
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 applications. Other guides (e.g. Azzaroni,
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