#### Conduit Fill Calculations ~ Electrical Knowhow

Table 1 permits 40 percent fill for over two conductors. From Table 4, 40 percent fill for trade size 11⁄4 RMC is 0.610 in., and from Table 5, the cross-sectional area of a 10 AWG THHN conductor is 0.0211 in.2. The number of conductors permitted is calculated as follows: 0.610 in.2 / 0.0211 in.2 per conductor = 28.910 conductors

#### Calculate Slurry Flow / Volume

An example of how you can calculate the slurry flow/volume of a given SG, %Solids and Tonnage. EXAMPLE: 3,400 tons of dry solids is processed in 24 hours in water with a specific gravity of 1.0 and the concentration of solids by weight is 33% with the solids having a specific gravity of 3.7 then using the formula below:

#### How to Calculate Backfill | Hunker

Step 1. Calculate the volume of the space to be filled. For example, find the cubic footage volume of a backfill area that is 8 feet wide, 6 feet deep and 50 feet long. The volume of a rectangular cubed shape is found by the formula v = l x w x d, where v represents volume, l is the length of the trench, w is the width and d is the depth.

#### Ball Mill Design/Power Calculation

Ball Mill Power Calculation Example #1. A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80% passing ¼ inch (6350 microns). The required product size distribution is to be 80% passing 100 mesh (149 microns). In order to determine the power requirement, the steps ...

#### How to calculate sales tax in Excel?

Sometimes, you may get the price exclusive of tax. In this condition, you can easily calculate the sales tax by multiplying the price and tax rate. Select the cell you will place the calculated result, enter the formula =B1*B2 (B1 is the price exclusive of tax, and B2 is the tax rate), and press the Enter key. And now you can get the sales tax ...

#### Weighted Cement Calculations - Formulas and Calculations ...

Casing capacity = 0.8679 ft3/ft. Step 2. Determine the slurry volume, ft3: Slurry vol, ft3 = 500 sk x 1.15 ft3/sk Slurry vol = 575 ft3. Step 3. Determine the amount of cement, ft3, to be left in the casing: Cement in casing, ft3 = (3000 ft - 2900 ft) x 0.8679 ft3/ft Cement in casing, ft3 = 86.79 ft3. Step 4.

#### Ball Mill Parameter Selection & Calculation - Power ...

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 certain margin when designing and selecting. There are many factors affecting the production capacity of the ball mill, in addition to the nature of the material (grain size, hardness, density, temperature and …

#### Ball Mills - Mineral Processing & Metallurgy

How to Size a Ball Mill -Design Calculator & Formula A) Total Apparent Volumetric Charge Filling – including balls and excess slurry on top of the ball charge, plus the interstitial voids in between the balls – expressed as a percentage of …

#### Cement mill notebook - SlideShare

Example: Two compartment cement mill Diameter = 4.05 m Length = 12 m Filling degree = 196 tons at 30% filling degree Mill speed = 16.27 rpm C = 0.223 (from the figure) Then: K = 0.223 * 196 * 4.05 * 16.27 = 2.88 KW 8.2 Calculation of the Specific Consumption of Energy per Ton of Clinker: The specific consumption of energy per ton of clinker ...

#### How to Calculate Percentages

The easiest way of calculating a percentage of an amount for me is to divide the amount by 100 to get the 1% value and then multiply that with the percentage amount. starting amount = 240 ( ) percentage = 12%. divide 240 to 100 to get the 1% value. 240 ÷ 100 = 2.40. one percent of 240 = 2.4. calculate what 12% is by multiplying the one ...

#### SAGMILLING .:. Mill Critical Speed Determination

The "Critical Speed" for a grinding mill is defined as the rotational speed where centrifugal forces equal gravitational forces at the mill shell's inside surface. This is the rotational speed where balls will not fall away from the mill's shell. Result #1: This mill would need to spin at RPM to be at critical speed. Result #2: This mill's ...

#### How to Calculate Percentages in Excel (using Formulas)

Then, type the following formula: = (B2/C2)*100. Hit Enter to get the student's score as a percentage of the total possible points. You can then use the fill handle to drag the formula down to the rest of the scores. Multiplying by 100 shows you the percentage— not the decimal.

#### Calculate percentages based on cell color in column [SOLVED]

Re: Calculate percentages based on cell color in column. pretty sure you can't base a calculation on a colour applied by conditional formatting. You need to use the same criteria in a formula as your CF uses. So in your DL worksheet, cell G73, you can use the formula: Formula: Please Login or Register to view this content.

#### How to Calculate Concrete Formula | eHow

Know that the formula for calculating concrete consists of the following: ( (length x width x height)/27) x 1.05 = Total concrete needed plus 5 percent extra. The length, width and height are measured in feet. Generally, you should purchase 5 percent more concrete than you need to complete your concrete project to ensure that you have enough to ...

#### Common Compensation Terms & Formulas

A percentile of a data set will have the same percentage of data falling below it (e.g., 50th, 75th, 90th percentiles). To calculate a desired percentile, use the following formula: Desired Percentile = (# of Data Points + 1) x Desired Percentile = # from the bottom

#### Cement hydration - Understanding Cement

The most common AFt and AFm phases in hydrated cement are: Ettringite: ettringite is present as rod-like crystals in the early stages of reaction or sometimes as massive growths filling pores or cracks in mature concrete or mortar. The chemical formula for ettringite is [Ca 3 Al(OH) 6.12H 2 O] 2.2H 2 O] or, mixing notations, C 3 A.3CaSO 4.32H 2 ...

#### Taper Calculations - Armstrong Metalcrafts

Taper Calculations. A cylindrical taper is a piece of material that decreases in diameter in a cone shape. Proportions for tapers are often expressed as Taper per Foot (TPF), or Taper per Inch (TPI). Taper calculations most often expressed in terms of the difference in diameter at the opposite ends of the taper and the length of the taper ...

#### Ball charges calculators

- 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:

#### Engineering Calculations DEMOLITION DEBRIS WASTE …

Objective: Calculate the estimated volume of C&D debris material that will result from the demolition of the Bunker Complex. The structure and concrete slabs have the dimensions shown below and discussed herewith. The bunker building itself has a height of 12 ft and maintains a 6-in concrete wall and floor thickness throughout.

#### How to Calculate Cement, Sand and Coarse Aggregate ...

Concrete Ingredients Calculation. For Cement, Sand and Coarse Aggregate. This is a Volumetric Calculation. Assuming we need 2 m 3 of concrete for M20 Concrete Mix, (Mix Ratio, M20 = 1 : 1.5 : 3) Total Part of the Concrete = 1+1.5+3 = 5.5 Parts. Therefore, Cement Quantity = (Cement Part / Concrete Parts ) * Concrete Volume

#### how to calculate coal mill load - BINQ Mining

How to Calculate Charge Volume in Ball or Rod Mill | Mining …. The charge volume of a ball or rod mill is expressed as the percentage of the volume within the liners filled with balls or rods. When the mill is stationary, the … »More detailed

#### How to calculate Volume of concrete for Slabs, Columns ...

Calculation of volume of concrete for beams:-. Beams are generally in a rectangular shape, to calculate the volume of concrete required for beams calculate the top or bottom surface area of the beam and multiply with the depth of beams. Volume of concrete for rectangular beam = Surface area x Depth = length x width x depth = 4×0.5×0.4=0.8m 3.

#### Modeling and Optimization of Cement Raw Materials Blending ...

The world famous cement manufacturers such as KHD Humboldt Company, F.L. Company, and F.C.B Company in propose their formulas to calculate SAR; in practice, any of the following formulas can be used to compute SAR: where is the SAR, and are the mass or mass percentage of K 2 O and Na 2 O, respectively, and is the permissible maximum ...

#### How To Calculate Quantity Of Soil/Sand For Filling Plot

Suppose we need to fill the plot by 3'5" = 3.41 feet. ∴ Depth of the plot = 3.41 feet. Volume of plot to be filled = 1200 x 3.41 = 4092 cft. This volume is for loose state. For full compacted state, required quantity of soil/sand for filling the plot = 4092 x 1.30 = …

#### fly Ash Percentage in PPC Cements - The Constructor

Fly Ash is a product or furnace slag received form metal factories and power plants by burning or combustion of coal as fuel. The maximum percentage of fly ash or 15% by weight of cement shall be replaced by fly ash. #more fly ash reduces the strength of concrete and durability of concrete.

#### Normal Consistency or Standard Consistency of Cement Test ...

The Test 'normal consistency or standard consistency test of a cement paste' is used to determine the required quantity of water to produce a cement paste of standard consistency.It is necessary to fix the quantity of water to be mixed in cement paste in each case for finding out initial setting time of cement, final setting time of cement, soundness of cement …

#### Re: Raw meal to clinker ratio - Page 2 of 5

This is because fine coal from the the coal mill usually has 4-5% of raw meal dust contamination from the hot gases ex the preheater top cyclones. Alternatively, if the percentage of dust contamination can be accurately determined, this value can be used to correct the fine coal tonnes fired and calculate the dust-free % ash.) Regards, Ted. Reply

#### Calculation method to Design Hoppers and Silos - Hopper ...

The H parameter is used in the formula to calculate the critical outlet diameter to prevent arching. It is calculated from an abascus, knowing the hopper discharge angle calculated in step 2. Figure 5 : Abascus for H parameter calculation. Note : the green line corresponds to wedge shaped hoppers, the red line to axi-symetric hoppers (cone) ...

#### Slab Steel Calculation Formula | Steel Calculation In Slab

To determine the total length of vertical bars, the following formula is used :-Total length = Length of one bar x Numbers of bars. Total length = 1.0 x 9 = 9 m (bars with diameter 10m) Now, the total weight of bars will be calculated as follow :-Weight of 12 mm bars + Weight of 10 mm bars. To determine the length for 1 meter, the formula is d ...

#### Clinkerization - Cement Plant Optimization

The liquid percentage at 1450 0 C can be estimated using the formula. % Liquid content (1450 0C) = 3.0 x A+2.25 x F+S. Where A=Al 2 O, F=Fe 2 O 3, S= MgO+K 2 O+Na 2 O+SO 3 In Clinker. The normal range of liquid phase is 22-27%. Burnability is a reference value for raw meal indicating how difficult it is to burn.