Email Address

[email protected]

Phone Number

+0086-371-86162511

ball mill size power consumption

Get In Touch

Ball Mill Design/Power Calculation 911 Metallurgist

19-06-2015· 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 following shows how the size or select the matching mill required

Get Quote

Charge behaviour and power consumption in ball mills

01-08-2001· Typical power consumption for a 5-m diameter by 7-m-long ball mill is between 2.5 and 3.5 MW. The actual proportion of this energy usefully used in size reduction is thought to be very low, perhaps in the range of 1–5%. Significant financial and environmental benefits can be obtained by improving this efficiency even slightly.

Get Quote

Ball Mill Design/Power Calculation LinkedIn

12-12-2016· 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.

Get Quote

Charge behaviour and power consumption in ball mills

Abstract. Discrete element method (DEM) modelling has been used to systematically study the effects of changes in mill operating parameters and particle properties on the charge shape and power draw of a 5-m ball mill. Specifically, changes in charge fill level, lifter shape (either by design or wear) and lifter pattern are analysed.

Get Quote

calculation of specific power consumption of ball mill

Jan 2, 2009 consuming only 65% of the energy consumption of the ball mill. The ball mill along with a pre-grinding system such as roll press is also used in some of the plants with very hard 12.4 Specific Energy Consumption in Cement Plants.

Get Quote

THE OPTIMAL BALL DIAMETER IN A MILL

The ball size in a mill has a significant influence on the mill throughput, power consumption and ground material size (Austin et al., 1976; Fuerstenau et al., 1999; Kotake et. al., 2004). The basic condition, which must be met while grinding the material in a mill is that the ball, while breaking the material grain, causes in it stress which is higher than the grain hardness (Bond, 1962; Razumov,

Get Quote

Bond formula for the grinding balls size calculation

19-10-2017· Wi specific energy consumption, kW*h/ton; C the mill drum rotational speed,% of the critical speed; D the mill internal diameter, m. At result B = 25mm or less necessary to use the correction factor 1.3, i.e. the grinding balls average diameter should be 32.5 mm in the feed mixture.

Get Quote

CALCULATION OF THE POWER DRAW OF DRY

Ss Ball size factor To determine the power that a dry grinding needs, full grate discharge mill Equation 1 is multiplied by the factor of 1.08. A multi-compartment ball mill consists of two or more grate discharge ball mills in series. The same equation is used to calculate the power that each ball mill compartment should draw. The total power is

Get Quote

How to Size a Ball Mill -Design Calculator & Formula

15-05-2015· 2) Ball milling a ball mill with a diameter of 2.44 meters, inside new liners, grinding wet in open circuit. When the grinding conditions differ from these specified conditions, efficiency factors (Rowland and Kjos, 1978) have to be used in conjunction with equation 1.

Get Quote

Scale‐up of power consumption in agitated ball mills

Mathematical models are presented which describe the power consumption in agitated ball mills in absence of grinding beads. In addition, tests with grinding beads filling were also performed, leading to scale‐up guidelines with respect to power consumption. Finally, the influence of size and material of grinding beads was investigated.

Get Quote

Bond formula for the grinding balls size calculation

19-10-2017· Wi specific energy consumption, kW*h/ton; C the mill drum rotational speed,% of the critical speed; D the mill internal diameter, m. At result B = 25mm or less necessary to use the correction factor 1.3, i.e. the grinding balls average diameter should be 32.5 mm in the feed mixture.

Get Quote

Charge behaviour and power consumption in ball mills

Discrete element method (DEM) modelling has been used to systematically study the effects of changes in mill operating parameters and particle properties on the charge shape and power draw of a 5-m ball mill. Specifically, changes in charge fill level, lifter shape (either by design or wear) and lifter pattern are analysed. The effects of changes to the properties of the charge (ball fraction

Get Quote

The effect of ball size distribution on power draw, charge

40%. The effect of ball size distribution increased with increasing mill filling and for the mill filling of 35%, the ball size distribution had the maximum effect on the power draw. When the mill charge contained mono-sized balls, the ball flow regime inside the mill transited to the cataracting and impact breakage was the main breakage mechanism.

Get Quote

AMIT 135: Lesson 7 Ball Mills & Circuits Mining Mill

The ball size factor, F B, is added to the mall shaft power for mill sizes greater than 3.3 meters:F↓B 1.102 (d↓max 12.5D / 50.8) kW/t Other Rowland & Kjos Power Draw Corrections

Get Quote

Ball mill SlideShare

24-04-2015· During grinding, balls themselves wear and are continuosly replaced by new ones so that mill contain balls of various ages and thus of various ages and thus of various sizes Ball mill produces 1 to 50 tonn/hr of powder of which 70 to 90 % will pass through a 200 mesh screen and energy requirment of the ball mill is about 16 kwh/tonn In case of a batch operated mill a measured quantity

Get Quote

THE EFFECT OF BALL MILL OPERATING PARAMETERS ON MINERAL

Mill speed, mill charge, ball size, and wet grinding are the parameters which have been selected for the present study. who postulated that the energy consumption for size reduction is proportional to the area of the new surface produced. Later, Kick (1885) proposed _that the energy

Get Quote

TECHNICAL NOTES 8 GRINDING R. P. King

mill is the energy consumption. The power supplied to the mill is used primarily to lift the load (medium and charge). Additional power is required to keep the mill rotating. 8.1.3 Power drawn by ball, semi-autogenous and autogenous mills A simplified picture of the mill load is shown in Figure 8.3 Ad this can be used to establish the essential

Get Quote

Ball Mill: Operating principles, components, Uses

05-07-2020· The balls which could be of different diameter occupy 30 50 % of the mill volume and its size depends on the feed and mill size. The large balls tend to break down the coarse feed materials and the smaller balls help to form fine product by reducing void spaces between the balls. Ball mills grind material by impact and attrition.

Get Quote

Best energy consumption CemNet

16-02-2015· However, in pure energy efficiency terms, the benefit of grinding power reduction is countered by the very high power required by mill fans. In addition, the absence of the heat generated in a ball mill and the high volume of air required by the vertical mill have required the provision of waste heat from cooler exhausts and/or auxiliary furnaces to dry raw materials and achieve a limited

Get Quote
Latest News