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

Sizing a crusher can be done reliably calculated thanks to the Impact/Crushing Work Index and the testwork research done by Fred Chester Bond and his 1952 paper. According to Bond’s Third Theory of Comminution, the work/energy input is proportional to the new crack tip length created during particle breakage and equivalent to the work represented by the product the feed. A crude test

get price### how to calculate crusher work index

how to calculate crusher work index For each project scheme design, we will use professional knowledge to help you, carefully listen to your demands, respect your opinions, and use our professional teams and exert our greatest efforts to create a more suitable project scheme for you and realize the project investment value and profit more quickly.

get price### How To Calculate Crusher Work Index Evert Bioenergie

Crusher work index infographicsdesigner.nl. calculate crusher power from work index chapter 3 particle technology size reduction calculate crusher power from work index,an ideal crusher would 1 have a large capacity 2 require a small power input per unit of product and 3 yield a, the work index, wi, is defined as the gross energy

get price### How To Calculate Crushing Work Index

Home How To Calculate Crushing Work Index. Copper Ore Processing Equipment. Capacity:0.18-7 (m ³/min) Suitable Materials:Copper, zinc, lead, nickel, gold and other non-ferrous metals, ferrous and non-metal. View Details Send Enquiry Ceramsite Production Line. Production Capacity:70-5,000 t/d Raw Materials:Clay, mudstone, slate, gangue, coal ash, shale, sludge and industrial solid waste. View

get price### (PDF) A quick method for bond work index approximate value

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...

get price### how to calculate crusher work index BINQ Mining

how to calculate crusher work index. Calculate your Body Mass Index. Calculate Your Body Mass Index. Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult »More detailed. crusher operating work index calculation Gold Ore Crusher. Universiti Teknologi Malaysia Institutional Repository Items where Subject is T Technology T Technology

get price### 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. The test requires at least 10 particles of -75 +50 mm

get price### USING THE SMC TEST® TO PREDICT COMMINUTION CIRCUIT

has to supply this energy and it has a different (higher) work index than the crusher (ie the ball mill is less energy efficient than a crusher and has to input more energy to do the same amount of size reduction). Hence from equation 7, to crush to the ball mill circuit feed size (x . 2) in open circuit requires specific energy equivalent to: f x f x 2. 1 W c ic. 1.19* 4 2 M x x. 1 (10) For

get price### Bond Tests SGS

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.

get price### 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.

get price### QUICK METHOD FOR BOND WORK INDEXAPPROXIMATE VALUE

crusher and roll crusher in a closed cycle with screening to size 100% -3.327 mm. Composite samples of andesite and limestone were prepared in ratios: limestone : andesite = 25 : 75, limestone : andesite = 50 : 50, limestone : andesite = 75 : 25. The Bond work index determination according to the standard Bond test was done

get price### Jaw Crusher ScienceDirect

01/01/2016 The size of a jaw crusher is usually described by the gape and the width, expressed as gape × width. The common crusher types, sizes and their performance are summarised in Table 4.1. Currently, the dimensions of the largest Blake-type jaw crusher in use are 1600 mm × 2514 mm with motor ratings of 250–300 kW.

get price### Bond Work Index an overview ScienceDirect Topics

The ball mill work index laboratory test is conducted by grinding an ore sample prepared to 100% passing 3.36 mm (6 mesh) to product size in the range of 45-150 µm (325-100 mesh), thus determining the ball mill work index (WiB or BWi).

get price### Crushing of coal and calculation of size reduction efficiency.

25/02/2015 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.

get price### Bond Abrasion Index Tester 911Metallurgist

Mathematical correlation with the work index has not been reliably established. The abrasion index is used as an indicator of metal wear and crusher and mill liner life expectancy . A high abrasion index, for example > 0.6. would suggest a preference for a single stage crusher-SAG mill circuit to avoid multiple stages of crushing and costly liner replacement operating costs.

get price### 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 Phosphate rock 2.74 9.92 Quartz 2.65 13.57 Shale 2.63 15.87 Slate 2.57

get price### Aggregates Calculator Brett

Aggregates Calculator. Our Aggregates Calculator will help you determine the quantity of aggregates you need for your project. Please enter the Width, Length and Depth of the area, then click on the Calculate button.

get price### Sub base stone, mot and scalpings calculator

Sub Base Estimator. This form will calculate the approximate metric tonnes of unconsolidated DTp1 required for the entered area. Please enter the dimensions in the white fields below.

get price### Tonnage Calculator Robinson Quarry Masters Limited

Simply enter in the dimensions of the area you need to fill and hit calculate. You can then enter your details to get a quotation by email or if you are in a real hurry just give us a call and order over the phone. Sales: 028 2583 1245 How much will I need?

get price### QUICK METHOD FOR BOND WORK INDEXAPPROXIMATE VALUE

crusher and roll crusher in a closed cycle with screening to size 100% -3.327 mm. Composite samples of andesite and limestone were prepared in ratios: limestone : andesite = 25 : 75, limestone : andesite = 50 : 50, limestone : andesite = 75 : 25. The Bond work index determination according to the standard Bond test was done

get price### Crushing of coal and calculation of size reduction efficiency.

25/02/2015 Hard grove grindability index HGI is defined to classify coals on the basis of their easy while grinding It is obtained by grinding 50 g of 1mmx 0.6 mm of dried coal sample in a standardised ball-and race mill for 60 cycles at a seed of 20 r.p.m. The sample is then sieved at 74 micro meter to determine the weight passing through the sieve.

get price### Small-Scale Tests to Characterise Ore Grindibility

The crusher work index (cWI) or impact work index is calculated as follows: Where J is the energy at which the specimen broke, mm is the thickness of the rock specimen, and S.G. is the specific gravity of the ore. The J/mm are transformed in kWh/t as follows: The test is generally performed on 20 rocks, which is relatively small, resulting

get price### Crusher2 SysCAD Documentation

Crusher tab will have different fields depending upon the Method selected by the user: The Bond Work Index of the rock. This number will be used to calculate the power required to produce the final product. Options: ShowQFeed: CheckBox: QFeed and associated tab pages (eg Sp) will become visible, showing the properties of the combined feed stream. See Material Flow Section. ShowQProd

get price### TON CV200 RANGE VERTICAL SHAFT IMPACT CRUSHERS (VSI)

) Determine the Work Index (Wi) of the material to be crushed and choose the nearest applicable product curve from the tables on previous pages. b 2) Calculate the amount of re-circulating load to the crusher, by referring to the applicable table. Example a) Wi=14 curve selected in

get price### how to calculate mill and crusher power requirement

how to calculate mill and crusher power requirement. Ball mill design power calculation,the basic parameters used in ball mill design 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 and maximum chunk size, product size as and

get price### Size Reduction Equipment

•It is desired to crush 10 ton/hr of iron ore hematite. The size of the feed is such that 80% passes a 72.6 mm screen, and 80% of product a 3.175mm screen. Calculate the gross power requirement for wet grinding and dry grinding. Work index of Hematite is 12.68 [Ans 17.96kW]

get price### how to calculate grinding efficiency of a mill

How to Calculate Grinding Mill Operating Efficiency. In grinding, operating Efficiency compares the operating work index of a comminution machine to the Bond work index from bench scale crushing and grindability tests or/and pilot plant tests. Economic Efficiency is comparing the income from production to the planned income from production.

get price### Aggregates Calculator Brett

Please enter the Width, Length and Depth of the area, then click on the Calculate button. Please note that calculated tonnage is approximate and we recommend that all measurements and calculations are checked by the contractor on site before placing an order.

get price### Calculate Crusher Run 2" minus cubic yards / Tons

Calculate Crusher Run 2" minus Type in inches and feet of your project and calculate the estimated amount of Base material in cubic yards, cubic feet and Tons, that your need for your project. The Density of Crusher Run 2" minus: 2,410 lb/yd³ or 1.21 t/yd³ or 0.8 yd³/t

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