Crushing Law And Work Index
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Bond Work Index
The Bond work index ( Bond, 1960) is based on Bond''s law, which states that the energy consumed is proportional to the 1.5 power of particle size rather than the square of Rittinger''s law. Accordingly, the energy consumed in reducing the particle size from x F to …
A single toggle Blake jaw crusher with 22.8 cm × 47.7 cm receiving hopper crushed gold ore at the rate of 85 t/h with closed setting at 2.54 cm and maximum opening of 3.8 cm. The work index of the ore was 13.5 kWh/t. Assuming the SG of the ore was 5.4 1.
Bond Crusher Work Index
1500 x 675 x 1200 mm 300 kgs (only machine) 230V/50Hz/60Hz Variable 0-80 rpm 0.75KW Bond Crushing Work Index (CWI) The Bond Crushing Work Index (CWI) describes the competency of the ore at larger particle sizes. It is used for the calculation of the actual crusher power requirements. на сайте.
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 𝑖𝑖
Bond Work Index Tests
The Bond Ball Mill Work Index (BBWi) test is carried out in a standardised ball mill with a pre-defined media and ore charge. The Work Index calculated from the testing can be used in the design and analysis of ball mill circuits. The test requires a minimum of 10kg of sample that has been stage-crushed to passing size of <3.35 mm.
Impact Crusher Parts,Impact Crushing Work Index
Impact Crushing Work Index The impact crushing work index mainly includes rotor speed and productivity. (1) Impact Crusher Rotor Speed The calculation formula of impact crusher rotor speed is n=60v/πD, in which v refers to the linear speed of the rotor (m/s
Bond Impact Crushing Work Index -Procedure and Table of …
· P80 = 25400 x Oss x (0.04Wi + 0.40) P80 = 25400 x Css x 7Ecc x (0.02Wi + 0.70) / (7Ecc – 2Css) Where Oss = Open-side setting in inches. Css = Closed-side settings in inches. Ecc = Eccentric throw in inches. P80 = Aperture through which 80% of the product will pass. Wi = Work Index.
Bond Crusher Work Index
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.
Bond Crushing Work Index Equipment
Crushing Laws And Work Index Free Pdf Apr 29 2013 influence of crushing process variables on the product – our crusher in many instances rock crushing has considered to be more art than science one reason for that is number of crushing zones and work ...
Bond impact work index and abrasive
Bond impact work index and abrasive Products As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Bond impact work index and abrasive, quarry, aggregate, and different kinds of minerals.
data of crusher work index
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.
Bond Crusher Work Index Pendulum Test
The Bond work index Wi is used as a measure of grindability of an ore Deniz, 2003 Equation 1 gives the work index of the test ore jaw crusher followed by a roll crusher, and ground for . Bond Ball Mill Work Index Database Jktech. bond crushing work index Mobile Crushers all over the . bond crushing work index. .
crusher work index tests
Smc test report1.62 Мб K2 If the crusher is in open circuit, eg pebble crusher in a AG/SAG circuit, K2 takes the value of 1.19. x1 x2 Mic = = = B 2.2.3 P80 (Ám) of the circuit feed P80 (Ám) of the circuit product Crushing ore work index and is provided directly by
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
Crushing work index Calculation
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.
USING THE SMC TEST® TO PREDICT COMMINUTION CIRCUIT …
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 Test ®
How To Calculate Crusher Work Index
Crusher Syscad Documentation. Apr 23, 2020nbsp018332the bond work index of the rock. this number will be used to calculate the power required to produce the final product. calcpower usedpower calc the calculated power to produce the crusher product. power 10.0 sq bwi 1.0sqrtp 80 - 1.0sqrtf 80 where sq is the solid mass flowrate bwi is the bond ...
crusher work index hardness classification in gambia
crusher work index hardness classification in gambia CRUSHER WEAR PARTS ,8 Crusher Wear Parts Reference Guide Crusher Wear Parts Reference Guide 9 MATERIAL PROPERTIES TABLE WEAR PARTS OVERVIEW CRUSHABILITY ...
Bond Work Index For Coal In Crusher
Bond Work Index For Coal In Crusher- SPECIAL Mining machine Coal crushing work index 14 oct 2013 bond work index for coal in crusher crusher machinebauxite crushing bond work equation for jaw crusher get price mill grinding wikipedia with w as grinding work in kjkg w is the work index measured in a laboratory ball mill this type of mill uses the same principle as vsi crusher.
crusher work index tests
crusher work index tests - Ruby Grandbond work index of line | Page -of-line. control board dust control from stone crusher Bond Work Index Method. The Bond Wor [email protected] VM series Vertical Grinding Mill is a kind of large scale powder mill which is ...
Bond Work Index Formula-Equation
The formula that underlay''s the crushing work index hasn''t been calibrated since Fred Bond did it in the 1950''s (probably based on data collected in the 1940''s). Modern crushing machines, liner designs and the compression forces involved look almost nothing like …
bond work index equation for jaw crusher
· Bond Crusher Work Index operatie003 Bond Work Index Formula-Equation. 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 ...
bonds crushing law and work index
Ammtec. Values of Bond crushing work index will vary from a 8 kWh/t for laterite hardcap through to 22 kWh/t for banded iron formation to 46 kWh/t for fresh greenstone.
QUICK METHOD FOR BOND WORK INDEXAPPROXIMATE VALUE …
A quick method for bond work index approximate value determination 325 different raw materials. For two grinding cycles 𝑃80𝑃2 80 ranges from 1.012 to 1.058. For three grinding cycles 𝑃80𝑃3 80 ranges from 0,989 to 1.072. For four grinding cycles 𝑃80𝑃4 80 ranges from
Compare and Understand Rod/Ball/Impact …
FIGURE 1: BOND CRUSHING WORK INDEX v. UNCONFINED COMPRESSIVE STRENGTH 0 100 200 300 400 UCS, MPa 10 20 30 40 50 WiC (metric) The scatter of the points in Figure 1 indicates no correlation between crushing work index and UCS. There is
Design, Fabrication and Testing of a Double Roll Crusher
work index. The work index, w i, represents the kilowatt hours per tonne required to reduce the material from theoretically infinite feed size to 80 percent passing 100μm . 2. Design Analysis and Calculations 2.1 Roll Crusher Geometry It is
CORRELATION BETWEEN BOND WORK INDEX AND MECHANICAL PROPERTIES OF SOME SAUDI …
index and Bond work index. The Bond work index is regarded as one of the crushing resistance; it can therefore be presumed that the Bond work index is correlated to the mechanical properties of materials . Literature review on impact crusher
Size Reduction and Energy Requirement
· The work index values of the Magdalinovic method agree with this average Bond work index because the method does not simulate the recycling of harder components into the mill charge. On the other hand, the work index obtained using the standard Bond test shows the weighting of the work index towards the harder component as a result of the circulating load.
how to calculate crusher work index
Bond crusher work index pendulum test,the bond work index is defined as the kilowatt-hours per short ton required to break from infinite size to a product size of passing 100 If the breakage. chat online; how To bond index In rock crusher. bond crusher work index
Crushing of coal and calculation of size reduction …
· 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.
data of crusher work index
jaw crusher data and their crushing work index Work Index values crushing rod mill and ball mill Data crushing energy and work done by the jaw crusher for rocks... Know More crushing work index comparisons australia
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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