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bauxite crushing bond work index

QUICK METHOD FOR BOND WORK …

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 value is quite complicated, time-

Size Reduction Equipment - Birla Institute of Technology ...

WORK INDEX β€’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. β€’If Dp is in mm, π‘Šπ‘–=𝐾 1 𝐷𝑝𝑝 𝐾 = 0.1π‘Šπ‘–=0.3162π‘Šπ‘– I =0.3162π‘Šπ‘– 1

Table of Bond Work Index by Minerals

Source 1: Table of materials reported by Fred Bond Source 2: Outokumpu, The science of comminution Source 3: Equipment and pipelines Source 4: Tenova Bateman mills (AG/SAG, Rod, Ball Mills) Source 5: Doering international Source 6: SME handbook of mineral processing, N.L Weiss Editor, NY 1985. Bond Work Index Tester

crushing and pulvarisation of the ore

bauxite crushing bond work index china. coal pulvarisation mills in south africa the mining industry in south africa design ball mill gold platinum and diamond mining In copper ore processing plant, crushing process is the important process In this copper ore crushing plant, several crusher machines are used

bauxite crushing bond work index - shibang-china.com

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.

Grindability characteristics of lateritic ... - ScienceDirect

Research highlights Grindability characteristic of five different kinds of bauxite was investigated. Temperature and alkaline media have significant effect on the grindability. Possible reasons of the Bond work index decrease were revealed. The grinding work of bauxite should be divided by an empirical adjustment factor. The factor strongly depends on texture and type of …

(PDF) Impact work index prediction from continuum …

The traditional Bond work index proposed by F.C. Bond over 60 years ago is still today a useful tool for characterizing material crushability and grindability in the …

bond crushing work index equipment - taller-ceramica.es

Bond Work Index For Coal In Crusher Special Jan 21 2015 coal crushing work index youtube 14 oct 2013 bond work index for coal in crusher crusher machine bauxite crushing bond work index crusher plant bonds crushing law and work index chemical engineering stop bonds law may 14 2010 where kb is a constant that depends on the type of machine and ...

bond work index of bauxite - BINQ Mining

Bond index of limestone – OneMine Mining and Minerals Library …. Matches 1 – 10 of 442 … Bond index of limestone – OneMine Mining and Minerals Library search results.… energy values of barite, marble, limestone and bauxite have been determined and compared with the corresponding Bond work index (W i ) … Β»More detailed

Comparison of UCS to Bond Work Indices

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.

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Dear all, while researching about the bond crushing work index (Wic), I realised, that the procedure of the test is described differently in different sources. The same seems to be true for sampling. Two examples: Bergstrom 1985 _ Crushability and Grindability: The

How To Calculate Crushing Work Index

Testwork: Bond crushing work index SAGMILLING.COM. Crushing mill work index is used in the SAGMILLING.COM Bond/Barratt specific energy consumption model. The work index is used to calculate the energy requirement to break rocks in the coarse size range, from >100 mm down to about 10 mm - 20 mm. View Details Send Enquiry wikiHow How to do anything

Alternative Approaches for Determination of Bond Work ...

The Bond's work index of the above rock samples calculated from the Hardgrove index value has shown a variation from 7.7 to 10.3 kWh/sh.t. A correlation is found between the friability value and work index. The correlation coefficient of 0.93 between the friability value (S1) and Bond's work index, Wi = -18.193 Ln (S1) + 66.747 has been found.

Bond Work Index Formula-Equation

What is the Bond Work Index Formula-Equation? In case you had forgotten, here is a classic: You can read all the details of this now "Biblical" …

Using Rock Geomechanical Characteristics to Estimate …

The Bond low-energy impact test, also named impact work index or Bond impact crushing work index, can measure the crushing work index (CWI) and describes the competency of the ore at larger particle sizes. The Bond low-energy impact test calculates the actual crusher power requirements. The crushing work index (CWI) is calculated as follows (Eq.

rock crushing work index - unchefensalle.fr

Hardgrove index and brittleness test can be carried out easily on only those ores or rocks or materials, which are soft, friable and brittle [1-3]. Indices with which the crushing resistance or the grindability in a wide meaning is expressed include the Rittinger number, crushing resistance, Hardgrove index and Bond work index.

Effect of core diameter on the Bond impact crushing …

The Bond low energy impact (crushing) work index test is specified to be performed on rock specimens between 50 mm and 75 mm in effective diameter. NQ-diameter drill core, frequently used in mineral exploration programs does not meet that specification, it …

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, …

Alternative Approaches for Determination of Bond Work ...

PLK (Partially Laterised Khondalite) rock is a general terminology used in this paper for those rocks which are in general associated in bauxite mining such as Partially Altered Khondalite (PAK) rocks, Partially Kaolinised Khondalite …

Testwork: Bond crushing work index - SAGMILLING.COM

The Bond low-energy impact crushing work index (more informally, the Bond crushing work index) is not as common as the Bond ball mill work index, and it is a notoriously noisy test.. The test is a 'per-specimen' test where individual specimens of prepared rock are hand-picked by the test operator and placed into the apparatus.

Bond Work Index Tests - Grinding Solutions Ltd

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.

bond indices cost for crusher - bautreujuchli.ch

Bond Indices Cost For Crusher Crushing Equipment. Bond Indices Cost For Crusher Crushing Equipment Mobile crusher can move flexibly no matter for the transferring project or the working site removing, which is a cost-effective crushing machineOperational expenseThe working-shift cost, holding-shift costs, maintenance costs and the running costs should be included in...

11 Crushing and classification

116 Crushing and classification ∝ βˆ’ 3 i 5/2 i 3 f 5/2 f x x x E giving = βˆ’ f i 10 10 x x E W i (11.5) where Wi is the Bond Work Index, again in energy per unit mass terms. The index is defined as the energy required to crush from infinite size down to 100 Β΅m, hence the 10 inside the brackets. Bond's

The work index in Bond's law for crushing of solids has

The work index in Bond's law for crushing of solids has the following dimensions a) No units (dimensionless) b) KWh/ton c) KW/ton d) KWh.m 1/2 /ton

Alternative Approaches for Determination of Bond Work ...

Six different types of rock samples associated in bauxite mine waste. 2.1 Bond's Work Index Representative samples were prepared separately by stage crushing to all passing a 6 mesh sieve. The weight of 700 cc sample was placed in the mill. The grinding conditions are given below. a) Gibbsitic

(PDF) Alternative Approaches for Determination of Bond ...

The value of the bond work index of the above samples has shown a variation from 10.8 kWh ton 1 for bauxite (high abrasion value and low …