how to calculate crusher work index

how to calculate crusher work index

Crushing work index Calculation - Crushing, Screening ...

The paper by Angove Dunne (1997) reports a standard deviation in crushing work index tests across laboratories as 4.5. The laboratory CWi value of 27.4 (metric) is almost within 4.5 units of the 22.4 value I calculated, so what you are observing is probably the natural variation in the crushing test.

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Bond Impact Crushing Work Index -Procedure and Table of ...

Jun 16, 2015  The test determines the Bond Impact Work Index which is used with Bond’s Third Theory of Comminution to calculate net power requirements when sizing crushers*. It is also used to determine the required open-side settings (jaw crushers and gyratory crushers) or closed-side settings (cone crushers) for a given product size.P80 = 25400 x Oss x (0.04Wi + 0.40)

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Power Calculation Of Impact Coal Crusher Based On Bond ...

bond 26 2339 3 s rod mill for work index. 19.0 MINERAL RESOURCE AND . Table 18.3: Bond Crushing work index Results . power calculation of impact coal crusher based on bond work ...

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The Bond work index is a measure of ore resistance to crushing and grinding and is determined using the Bond grindability test. Its value constitutes ore characteristic and is used for industrial ...

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Bond Crusher Work Index - greenrevolution.org

The Crusher Work Index in kWh/ton is a function of the material’s impact strength and is defined by an argillite type of rock, which has a work index of 16.5 bond crushing work index equipment.

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how to calculate crusher concrete

DESIGN AND ANALYSIS OF A HORIZONTAL SHAFT IMPACT CRUSHER Thesis submitted in partial fulfillment of the requirements for the degree of Bachelor of . Get Price. 7540mm Clean Crushed Concrete . 7540mm Crushed Concrete is ideal as a cheaper alternative to Limestone when ... (mts.): Depth (mm): Calculate.

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Feb 25, 2015  Bond Work Index 𝑤 = 10𝑊𝑖 1 𝑝 − 1 𝑓 W = Power required in KWH to crush 1 short tonne ( 2000 pound) of material Wi is the work index of the material p is the 80 % passing size of the product f is the 80 % passing size of the feed 2/25/2015 6:58:05 AM 23 24.

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Jan 01, 2016  capacity of crusher, 2. power consumption if the work index of the material is 12.5 kWh/t, 3. operating speed, 4. minimum level at which the feed should be maintained in the feed-hopper. 4.5. Determine: 1. the rate of the toggle movement that would meet the target production, 2. if the toggle rate was reduced by 25% indicate the production rate ...

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Impact Crusher Capacity Calculation

How To Calculate Impact Crusher Capacity. ... grinding mill equipmenthammer crusher capacity power calculations hammer crushers capacity power bond impact crushing work index procedure and table of apr 19 2018 both hammers of the quotpendulumquot will impact the smallest measured side on the to calculate net power requirements when sizing crushers.

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How To Calculate Cost Crusher Run - Henan Mining Machinery ...

Gold Ore Crusher. calculating cost of a crusher aggregate ... calculate amount of crusher run needed FDP. how much crusher run stone needed for driveway. Step 3: Click Calculate to get amount needed: ... by processing bank run gravel through a crusher and ... crusher run ...

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A Methodology to Estimate Ores Work Index Values, Using ...

units such as crushers and grinding mills, is ore’s work index. The work index, wi, presents the ore grindability, and is used in Bond formula to calculate the required energy. Bond has defined a specific relationship between some parameters which is applied to calculate

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Power Calculation Of Impact Coal Crusher Based On Bond ...

bond 26 2339 3 s rod mill for work index. 19.0 MINERAL RESOURCE AND . Table 18.3: Bond Crushing work index Results . power calculation of impact coal crusher based on bond work ...

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QUICK METHOD FOR BOND WORK INDEXAPPROXIMATE

Abstract: The Bond work index is a measure of ore resistance to crushing and grinding and is determined using the Bond grindability test. Its value constitutes ore characteristic and is used for industrial comminution plants designing. Determining the Bond work index

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Bond Work Index Tests - Grinding Solutions Ltd

The Bond Low-Energy Impact test can be used to determine the Crusher Work index (CWi), also known as the Impact Work Index. The test determines the impact energy at which a specimen fails and allows approximation of net power requirements for sizing crushers. The open and closed sized settings for given product sizes can also be determined.

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USING THE SMC TEST® TO PREDICT COMMINUTION

= 1.0 for all crushers operating in closed circuit with a classifying screen. If the crusher is in open circuit, eg pebble crusher in a AG/SAG circuit, K. 2. takes the value of 1.19. x. 1 = P. 80. in microns of the circuit feed . x. 2 = P. 80. in microns of the circuit product . M. ic = Crushing ore work index and is provided directly by SMC ...

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Bond Work Index - an overview ScienceDirect Topics

The Bond work index is not solely a material constant but is influenced by the grinding conditions. For example, the finer the grind size desired, the higher is the kWh/t required to grind to that size. Magdalinovic [38] measured the Bond work index of three ore types using different test screen sizes. He produced a correlation between the mass of test screen undersize per revolution, G, and ...

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SIZE REDUCTION

WORK INDEX Include friction in the crusher power Material Specific gravity Work Index, W i Bauxite 2.20 8.78 Cement clinker 3.15 13.45 Cement raw material 2.67 10.51 Clay 2.51 6.30 Coal 1.4 13.00 Coke 1.31 15.13 Granite 2.66 15.13 Gravel 2.66 16.06 Gypsum rock 2.69 6.73 Iron ore (hematite) 3.53 12.84 Limestone 2.66 12.74

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Size Reduction Equipment

WORK INDEX •Work Index, Wi, is the gross energy requirement in kilowatt hour per ton of feed (kWh/ton of feed) to reduce a very large particle to such a size that 80% of the product will pass through a 10micrometer, or 0.1 mm screen. •If Dp is in mm, 𝑊𝑖=𝐾 1 𝐷𝑝𝑝 𝐾 = 0.1𝑊𝑖=0.3162𝑊𝑖 I =0.3162𝑊𝑖 1

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Mineral Processing - Crushing - Plant design, construction ...

GRINDABILITY TESTS Bond Rod mill work Index • The rod mill work Index is also normally distributed with and average and median of 14.8kWh/t • It is common to observe difference between the ball and rod mill caused by variation in ore hardness • The test has been mainly used for the design of rod mill or primary ball mills. http ...

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How To Calculate A Compaction Test Report

Dec 27, 2014  This is a continuation of the previous article I posted How to do a compaction test or In-situ density test, about the calculation of the compaction test report. Here we are going to compute the bulk density of sand down to the degree of compaction of soil.. I would really want to pursue this article just to completely show the full process of getting the results of the test from taking the ...

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how to calculate circulating load in cone crusher

Feb 16, 2012  the literature, two more-established circuits, a cone crusher / ball mill and an .... calculate the specific work index for each stage of comminution, based on ..... re-circulating load decreased the product size and began to stabilize by cycle four. Read more

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(PDF) Prediction of Cone Crusher Performance Considering ...

Dec 03, 2016  The pressure on cone crusher liners is the key factor that influences the hydraulic pressure, power draw and liner wear. In order to dynamically analyze and calculate cone crusher

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Jaw Crusher - ScienceDirect

Jan 01, 2016  capacity of crusher, 2. power consumption if the work index of the material is 12.5 kWh/t, 3. operating speed, 4. minimum level at which the feed should be maintained in the feed-hopper. 4.5. Determine: 1. the rate of the toggle movement that would meet the target production, 2. if the toggle rate was reduced by 25% indicate the production rate ...

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R Crusher Wear Parts Reference Guide

crusher tools E.G. Jaw liners are subject to numerous pressure and impact stresses. Several other factors affect the wear lifetime of crusher wear parts as listed in below Diagram . Wear occurs in all crushers , however wear costs can be controlled by selecting the correct crusher type for the abrasive content of the material to be crushed.

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A Methodology to Estimate Ores Work Index Values, Using ...

units such as crushers and grinding mills, is ore’s work index. The work index, wi, presents the ore grindability, and is used in Bond formula to calculate the required energy. Bond has defined a specific relationship between some parameters which is applied to calculate

Read More
Bond Work Index - an overview ScienceDirect Topics

The Bond work index is not solely a material constant but is influenced by the grinding conditions. For example, the finer the grind size desired, the higher is the kWh/t required to grind to that size. Magdalinovic [38] measured the Bond work index of three ore types using different test screen sizes. He produced a correlation between the mass of test screen undersize per revolution, G, and ...

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calculate the impact crusher impact - Welmachine Machinery

calculate hammer crusher impact force pdf - ebm klussen. ... bond impact crushing work index testing machine - pendulum. Its impact strength is the average foot-pounds of energy represented by the breaking fall divided by the thickness in inches. The average impact strength is the average foot-pounds per inch required to break the ten or more ...

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Size Reduction Equipment

WORK INDEX •Work Index, Wi, is the gross energy requirement in kilowatt hour per ton of feed (kWh/ton of feed) to reduce a very large particle to such a size that 80% of the product will pass through a 10micrometer, or 0.1 mm screen. •If Dp is in mm, 𝑊𝑖=𝐾 1 𝐷𝑝𝑝 𝐾 = 0.1𝑊𝑖=0.3162𝑊𝑖 I =0.3162𝑊𝑖 1

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Operating work index is not the specific energy consumption

Oct 24, 2018  To calculate the operating work index of a circuit, you must measure four things: P: The power draw of the mill. This is usually calculated from the input leads to the motor, then multiplied by ...

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The bond work index for a mesh of grind of 200 mesh for a ...

The bond work index for a mesh-of-grind of 200 mesh for a rock consisting mainly of quartz is 17.5 kWH/ton. How much power (in kW) is needed to reduce the material in a wet-grinding ball mill from an 80 percent passing size of 1100 micrometer to an 80 percent passing size of 80 micrometer at a capacity of 10 ton per hour? a.

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KEY PERFORMANCE INDICATORS - Plant Maintenance

resources required for work "due" in a specified time frame. Often this work requires the equipment to be shut down. A review of production schedules is required. Resources are attached to a specific work schedule. The use of resources is balanced out. In the Execution process, trained, competent personnel carry out the required work.

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Calculate Your BMI - Standard BMI Calculator

Calculate Your Body Mass Index. Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. View the BMI tables or use the tool below to compute yours. Enter your weight and height using standard or metric measures. Select "Compute BMI" and your BMI will appear below.

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Works 4 Space: Calculation of Escalation on Bid Project ...

Sep 15, 2019  Here in Maharashtra in Nagpur region the Index for the month of Nov-2018 i.e. 361. 4. Now After getting all this we would calculate the Price Escalation of Revised Bid Project after Escalation. Now, from the above you can see that your project cost was Rs.100 Cr.

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Eligibility Index and GPA Calculator CSU

Eligibility Index and GPA Calculator. PTOC. Your Eligibility Index is calculated using your grade point average (GPA) and your ACT or SAT score. The index will help tell if you’re eligible for admission to the CSU. Please be advised that due to impaction, many campuses have supplemental admission criteria.

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Calculator - Hill Sand and Gravel, Inc

To use the Aggregate Calculator enter the width and length of your project in feet, the depth in inches, select the type of material and click on the Calculate button. The calculator will determine the cubic yards of material you will need, as well as the estimated tons. Contact us with the amount of material you need, your location and we can ...

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Jaw Crusher - ScienceDirect

Jan 01, 2016  capacity of crusher, 2. power consumption if the work index of the material is 12.5 kWh/t, 3. operating speed, 4. minimum level at which the feed should be maintained in the feed-hopper. 4.5. Determine: 1. the rate of the toggle movement that would meet the target production, 2. if the toggle rate was reduced by 25% indicate the production rate ...

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(PDF) Prediction of Cone Crusher Performance Considering ...

Dec 03, 2016  The pressure on cone crusher liners is the key factor that influences the hydraulic pressure, power draw and liner wear. In order to dynamically analyze and calculate cone crusher

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0.1 The power required to crush 125 ton/h of ... - Chegg

Calculate the work index if 80% of the feed passes a 2-in screen and 80% of the product passes a 1/4-in screen. Q.2 150 ton/h of gypsum rock is crushed in a certain crusher. The feed is nearly uniform 1.50 in spheres and produced the product of 0.08 in size. Using the Bond method, estimate the power necessary for the crushing process.

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