Dec 08, 2009· Re: how to estimate the wear rate for Ball mill Most practical way to by measuring empty height and calculating the % volumetric filling of grinding mediaAlternative way to make track of mill main drive kW consumption reduction and add makeup charge according to the extent of fall in power consumption
Get MoreGrinding Mill Drive Arrangements For grinding mills of 250 hp or less, the Texrope V-belt drive has proven to be most satisfactory Actually, the Texrope drive may be supplied for mills larger than 250 hp but the arrangement is usually undesirable because of the outboard bearing required by the motor and the large size of the driven sheave
Get MoreThe combination of a grinding circuit simulator with a model of ball wear in a grinding mill leads to a method to calculate, with a preselected accuracy, the make-up ball charge that optimizes the ,
Get MoreMar 01, 1992· The overall effect of a mixture of balls in the mill may be taken as the linear weighted sum (Austin et al, 1984e): L S, = Z mtSjj ( 14 ) /=1 L L Bi,= ( m,Sj,Bo,l) / Z rnlSjr (15) l=1 r=l The ball charge in the mill is split into L ball classes with diameters in a 4x/2 ratio, and mt is the relative mass frequency function of balls of size dr
Get MoreCentral Drive Ball Mill Torque and Power Calculation The inching drive, also known as a barring or auxiliary drive, is an important component of any mill or kiln installation It is used for maintenance and inspection purposes, as well as an emergency auxiliary drive ,
Get Morethe inching reducer and the main drive Also included in the system, is a brake or backstop to hold the equipment when it is stopped in an unbalanced position and other appropriate safety devic Typical drive arrangements are illustrated in Figure 1 for kilns and Figure 2 for mills IC Engine or Motor Backstop Incher Reducer Main Reducer ,
Get MorePower calculation formula for ball mill tanzania 0power calculation formula for ball mill tanzania a motor with around 1400 horse power is calculated needed for the designed task now we much select a ball mill that will draw this power the ball mill motor power requirement calculated above as 1400 hp is the power that must be applied at the mill drive in order to grind the tonnage of feed ,
Get Morerolling mill speed calculation formula - ball mill,roller , steel rolling mill speed calculation formula , Online roll pass design software for rolling mills and front of 13,000 hp variable speed motor on the hot mill
Get MoreThe mill is shell-supported, mounted on slide shoe bearings at both ends and made completely as a welded design The mill with the compact drive version features an INTEGRAL DRIVE, whose planetary gear is mounted to the mill flange KHD Humboldt Wedag mills are the result of the most advanced calculation and simulation methods, backed by years ,
Get MoreDrive Selection for Rolling Mills , soft starting arrangements availables for hot , Dec 11, 1975 , Calculation of mill drive torque and power for powder , Read more central drive ball mill torque and power calculation , Central Drive Ball Mill Torque and Power Calculation , ball mills, the starting torque restrictions of ,
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Get Moretorque mill test is the mill energy input divided by the solids load The energy specific cumulative grinding rate at each screen size is calculated from a torque-mill test as in the example that follows Torque mill solids load during test: 1125 kg (248 lb) of ball mill feed sample from plant survey Sample is reconstituted with water to be
Get MoreApr 12, 2013· Calculation of Power at Ball Mill Shaft for , hours per metric or short ton) , at 35 % ball charge 6 Mill drive , process calculation for ball mills percentage filling , grinding media charge calculation in cement ball mills , ball mill capacity calculations in Panama ,
Get MoreBall Mill HGRS Tikaria_Mill Workshop SEPT-07 What is a End Discharge Mill (EDM)? Air outlet 2st Compartment Intermediate diaphragm (Fine Grinding) 1st Compartment (Coarse Grinding) Mill feed arrangement Mill discharge Drive Gearbox with pinions Air inlet 3 HGRS Tikaria_Mill Workshop SEPT-07 EDM EDM = End Discharge Mill Product discharge ,
Get MoreThe mill with the compact drive version features an INTEGRAL DRIVE, whose planetary gear is mounted to the mill flange KHD Humboldt Wedag mills are the result of the most advanced calculation and simulation methods, backed by years of experience Worldwide we have designed and built more than 1,000 tube mills Our driving force The standard ,
Get MoreNov 18, 2014· Slide 2 Content Introduction Circulating load calculate Most factories the purpose of control Effective factors for circulating load Test design Conclusion References 3 Slide 3 circulating load ratio : As the ratio of the amount of solids going through the ball mill divided by the amount of solids going through the circuit
Get MoreBond ball mill and grind for an arbitrary number of mill revolutions (N 1 = 50, 100 or 150 revolutions) After grinding, screen the sample on the comparative sieve and determine
Get Moreball mill drive motor choices - Artec Machine, ball mills, the starting torque restrictions of some of the newer mill drive configurations, and the drive mill arrangement with the enclosed geared drive using a high-speed Drive 3 - A 5000 HP, 514 rpm synchronous motor with soft-start and an air clutch and reflected to the motor shaft is calculated to be 24,300 ft-lbs2
Get Morethe mill is used primarily to lift the load (medium and charge) Additional power is required to keep the mill rotating 813 Power drawn by ball, semi-autogenous and autogenous mills A simplified picture of the mill load is shown in Figure 83 Ad this can be used to establish the essential features of a model for mill ,
Get MoreMay 02, 2018· An inching drive is used as an auxiliary system to the main drive for a large machine such as a ball mill, industrial kiln, conveyor, or elevator Its purpose is to turn the equipment at a speed slower than the normal operating speed — typically 1 to 2 rpm, although fractional rpms are also common — and to do so at high torque — typically ,
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Get More03 Ball Mill EDM - Free download as Powerpoint Presentation (ppt), PDF File (pdf), Text File (txt) or view presentation slides online This poerpoint is about the ball mills
Get MoreBall Mill Operation Ball mills ride on steel tires or supported on both ends by trunnions Girth gears bolted to the shell drive the mill through a pinion shaft from a prime mover drive The prime movers are usually synchronized motors During rotation, a portion of the charge is lifted along the inside perimeter
Get MoreBall Mill Torque Z Niejednego Garnka Relation between torque and kw of the ball mill relation between torque and kw of the ball mill for any circuit whether a crushing circuit a rod mill or a closed ball mill circuit the work index always means the equivalent amount of energy to reduce one ton of the ore from a very large size to um the sample was received crushed appropriately for the ball ,
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Get Moremills and ball mills for use in the mining and cement industri By current stan-dards, girth gears can be as large as 14 meters (46 feet) in diameter, 11 meters (44 inches) face width, and 50 module (5 DP) tooth size, and weighing upwards of 120 tons Flange mounted gears rely, in large part, on the mill ,
Get MoreDec 12, 2016· The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill drive in order to grind the tonnage of feed from one size distribution The ,
Get MoreGear reducers utilize double- or triple-reduction gearing; Fig 3112 shows a schematic of the most popular double-reduction unit It contains three shafts: the high-speed input shaft, an intermediate shaft, and a slow-speed shaft The high-speed shaft is driven by the prime mover through a V-belt sheave, and the slow-speed shaft drives the crank arms of the pumping unit
Get MoreEquation 1 is multiplied by the factor of 108 A multi-compartment ball mill consists of two or more grate discharge ball mills in seri The same equation is used to calculate the power that each ball mill compartment should draw The total power is the sum of the ,
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