Power Draw Calculation Ball Mill

19/10/2015· 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.  Rod and Ball Mills by C.A. Rowland and D.M. Kjos @ Allis-Chalmers

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

Calculation of the power draw of dry multi-compartment ball mills 225 The mill load that is the volume of charge in the mill is the principal determinant of power draw. Estimation of the ball load that is mixed with the cement charge is difficult and can be highly

2014-10-1 power draw. The most frequently used power-based methodologies for calculating energy requirements for Rod and Ball Mill Work Indices (kWh/t) S C,R,B,SB = are (P-0.5-F-0.5) for the equivalent stage size ranges Note that for S B and S SB, the

12/12/2016· Example Calculation 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

Calculation of the power draw of dry multicompartment ball mills 225 the mill load that is the volume of charge in the mill is the principal determinant of power draw estimation of the ball load that is mixed with the cement charge is difficult and can be highly erroneous so direct measurement must be taken for calculation of mill load get price

Calculation of the power draw of dry multicompartment ball mills 223 Where gross power is the power input to the motor noload power is the power input to the motor when the mill is empty chargemotion power is the power associated with the movement of the charge and k x chargemotion power is the total power input to the charge

GROSS POWER CALCULATOR. General. This model uses the equations from Morrell’s 1993 PhD thesis: “The Prediction of Power Draw in Wet Tumbling Mills”. The model is also described in detail in the book “Mineral Comminution Circuits Their Operation and Optimisation” which is available from the Julius Kruttschnitt Mineral Research Centre.

30/8/2019· How to do Ball Mill Parameter Selection and Calculation from Power, Rotate Speed, Steel Ball quantity, filling rate, etc. read more Gold Mining Equipment +86-13879771862

The motor power draw required to turn a mill from rest to the operating speed includes the energy required for the initial starting torque and mechanical arrangements to rotate the mill. It is generally accepted that practical mill power (PM ) is a function of mill capacity and diameter, i.e.,P M = Mill Constant * (Mill Diameter ) n

12/12/2016· 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

the ball mill energy being used to grind target (oversize) particles. This paper describes Definitions and example calculation. The typical closed ball mill the mill power draw, it is directly related to overall circuit efficiency and productivity. Get Price

1/4/1999· The calculated power draft is maximum at about 50% ball load. According to Eq. 1, mill power is a function of ball mass (M b) and the distance between mill center and the center of gravity of ball mass (r g). So, as the mill filling increases M b goes up, but r g

Calculation of the power draw of dry multicompartment ball mills 223 Where gross power is the power input to the motor noload power is the power input to the motor when the mill is empty chargemotion power is the power associated with the movement of the charge and k x chargemotion power is the total power input to the charge

power draw calculation ball mill 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

30/8/2019· 1 Calculation of ball mill capacity The production capacity of the ball mill is determined by the amount of material required to be ground, and it must have a

ENERGY AND BALL-MILL SCALEUP Ball-mill scale up (Bond’s Law) Data: zBond work index w i zFeed D f and product d size (both 80% cumulative passing) Result: The specific grinding energy w Mill power draw P = wT, where T the mill capacity

The motor power draw required to turn a mill from rest to the operating speed includes the energy required for the initial starting torque and mechanical arrangements to rotate the mill. It is generally accepted that practical mill power (PM ) is a function of mill capacity and diameter, i.e.,P M = Mill Constant * (Mill Diameter ) n

The power drawn by the main motor of a ball mill proportional to the weight of the grinding media in the mill .. We are achieving specific heat consumption of 1300 kcals/kg clinker. .. Q: How do i calculate circulation factor in roller press.

The mill power draw models are used to predict how much power will be consumed by a particular type of mill, mill geometry and set of mill operating conditions. This power is transferred to the ore and used to predict the throughput when combined with the specific energy consumption models.