The ball charge and ore charge volume is a variable, subject to what is the target for that operation. The type of mill also is a factor as if it is an overflow mill (subject to the diameter of the discharge port) is usually up to about 40-45%. If it is a grate discharge you will have more flexibility of the total charge.

May 20, 2019· Freight rates are simply the price at which a certain cargo is delivered from one point to another. Traditionally that where the simplicity ends, as the calculations involved in producing these prices can depend on the mode of transport (road freight, air freight or sea freight), the nature and form of the cargo (Loose cargo, containerized cargo etc) the weight or volume of the cargo, and the ...

Dec 10, 2020· To calculate the volume of a cylinder, you must know its height and the radius of the circular base (the distance from the center of the circle to its edge) at the top and bottom. The formula is V = πr 2 h, where V is the Volume, r is the radius of the circular base, h …

About Lead; 11 342 kilograms [kg] of Lead fit into 1 cubic meter; 708.05793 pounds [lbs] of Lead fit into 1 cubic foot; Lead weighs 11.342 gram per cubic centimeter or 11 342 kilogram per cubic meter, i.e. density of lead is equal to 11 342 kg/m³; at 20°C (68°F or 293.15K) at standard atmospheric pressure.In Imperial or US customary measurement system, the density is equal to 708.05793 ...

We now have the formula to calculate the volume of a spherical cap. Let's look at a worked example. For a spherical cap with a ball radius of 5 cm and the cap height of 2 cm, we can calculate the volume like so: V = 1/3 * πh 2 (3R - h) V = 1/3 * π * 2 2 (3 * 5 - 2) = 54.45 cm 3. Now you know how to find the volume of a spherical cap and the ...

Aug 23, 2016· Example of calculating volume. The table below gives an example of calculating hydrocarbon charge volume for traps A and B. The volume of expelled hydrocarbons is calculated using V = A × T × Y × M. Estimation of charge volumes for the two traps (A and B) are made as follows. Factor. Trap A. Trap B. Area 3 (1000-m-thick mature source rock) 0 ...

Electric Field of Uniformly Charged Solid Sphere • Radius of charged solid sphere: R • Electric charge on sphere: Q = rV = 4p 3 rR3. • Use a concentric Gaussian sphere

- Ball top size (bond formula): calculation of the top size grinding media (balls or cylpebs):-Modification of the Ball Charge: This calculator analyses the granulometry of the material inside the mill and proposes a modification of the ball charge in order to improve the mill efficiency:

For more information on how to calculate specific gravity, contact your local sales person. Select standard 0.84 0.96 1.0 (water) 1.08 1.20 1.32 1.44 1.68 Calculate spray pressure Calculate flow rate

In electromagnetism, the charge density tells how much charge is present in a given length, area or volume. The greek symbol Pho denotes electric charge, and the subscript V indicates the volume charge density. The charge in terms of volume charge density is expressed as, Where, is the charge density. q is the charge (C)

Volume of Hollow Sphere Equation and Calculator. A hollow sphere is a ball that has been hollowed such the an equal thickness wall creates anopther internal ball within the external ball. Where: Input Volume Data. Outside Radius R (in, mm) =. Inside Radius r (in, mm) =. Result. Volume V (in 3, mm 3) =.

The charge is given by the charge density and the volume of the shell. When calculating the intensity field in the charged shell, the radius of the Gaussian sphere is smaller than the outer radius of the shell and greater than the inner radius of the shell. Only a portion of the charge …

This is a calculator that specifically calculates the volume of a sephere or a ball, support metric and imperial units (inches, feet, yards, mm, cm or meter), and volume result can convert to different unit, with calculation formula and dynamic visual sphere, it helps us to …

Mill Ball (%) = 100{[(ball volume in the 0.4 m3 sample)* 58.52] / 0.4}/297.96 (3) According to the results (Table 1), the ball filling percentage was obtained 1.3%. However, these results may have some field errors. Acquired Results from Abrasion Test Ball abrasion was calculated in 4 conditions which are as follows: Ball charge program,

Dec 02, 2015· Ball radius calculated by volume. person_outline Александр schedule 2015-12-02 20:56:14. This calculator does the opposite of this Sphere calculator - finds the radius of the ball by its volume.

Ball Mill Charge Sensor Logan Sainlez. Mill Steel Charge Volume Calculation We can calculate the steel charge volume of a ball or rod mill and express it as the of the volume within the liners that is filled with grinding media while the mill is stopped the charge volume can be gotten by measuring the diameter inside the liners and the distance from the top of the charge to the top

Technically there are 7,000 grains per pound. All ballistic powder charges, whether they are loaded using black powder, or modern smokeless powder are expressed in grains. So, if you read that a hunting load for a .50 caliber rifle is a patched .490-inch round ball over 90-grains of 2Fg Goex black powder, that means the powder charge weighs 90 ...

A solid ball of radius R has a uniform volume charge density and produces a certain electric field magnitude E{eq}_1 {/eq} at point P, a distance 1.84 R from the ball's center.

The Electric Field Around an Infinite Line of Charge. Calculate the electric field intensity at a distance R from an infinite line of charge with a linear charge density of λ C/m.. Solution: An extremely tiny segment of length dl meters carries a charge equal to dq = λdl Coulombs. The field of dl at P is dE = kdq/r 2 that is. dE = kλdl /r 2.

To remember the integral form of Maxwell's Equation No. 1, consider that a charge q, enclosed in a volume, must be equal to the volume charge density, r, times the volume. Also, the same charge q, will cause a certain area flux density, D, times a certain area. The area must enclose the volume.

Jul 08, 2015· First step: measure by volume. 2 nd Weight these charges on a traditional scale and determinate the average. 3 rd Now use your volumetric measure to weight your charges but check each of them on the scale as well. You can use any digital or analogue scales, but avoid the cheap low quality ones, stick with scales designed for weighing powder.

Calculation of Volumes Using Triple Integrals. V = ∭ U dxdydz. In cylindrical coordinates, the volume of a solid is defined by the formula. V = ∭ U ρdρdφdz. In spherical coordinates, the volume of a solid is expressed as. V = ∭ U ρ2sinθdρdφdθ.

Dec 02, 2020· Volume of a sphere formula. A sphere is a perfectly round geometrical 3D object. The formula for its volume equals: volume = (4/3) * π * r³. Usually, you don't know the radius - but you can measure the circumference of the sphere instead, e.g., using the string or rope.

Jun 30, 2014· Mass = Volume ⋅ Density. See the mean density (ρ) of many common substances. When the formula for mass and volume of a sphere are combined, one has formula for the mass of a sphere: M = 4/3⋅π⋅r³⋅mD. where: M is the mass of the sphere. r is the radius of the sphere. mD is …

For overflow ball mills, the charge should not exceed 45% of the mill volume . For grate discharge mills, the charge should occupy about 50% of the mill volume . Bond developed a relationship that can be used to determine the percent charge by volume as a function of the vertical height above the charge, He, and the radius of the mill, R, i.e.,

Mill steel charge volume calculation we can calculate the steel charge volume of a ball or rod mill and express it as the of the volume within the liners that is filled with grinding media while the mill is stopped the charge volume can be gotten by measuring the diameter inside the liners and the distance from the top of the charge to the.

The ball is 4 m wide has a diameter of 4 m, and therefore its radius is 2 m. The volume of the ball will be: V = 4 × 3.14 × 23 = 100.48 m 3 V = 4 times3.14 times23 = 100.48 m^3 V = 4 × 3. 1 4 × 2 3 = 1 0 0. 4 8 m 3. This was a more advanced example of CBM calculation, where we calculated the volume of a ball using its width in spherical ...

throughout the volume of an insulating sphere of radius R. What is the electric field for r < R? 4 R3 /3 Q Charge Density : π Calculate average charge density ρ= Now select a Gaussian sphere of radius r within this larger sphere Charge within this sphere is given by 3 3 3 3 3 4 4 3 R r r Q R Q Q encl V encl ...