Determination of Bond Work Index of Lucky Cement Limestone Pakistan Niaz Muhammad Shahani, Zhijun Wan, Abdullah Rasheed Qureshi, Muhammad Ali, Naseem Ali Abstract—The Bond work index is a research methodology, which is widely used for the estimation of power required to grind the materials.
The Bond Work index is determined by a standardized procedure in which the material is crushed in stages to finer than 6 mesh (3,35 mm), and ground under specified conditions in a laboratory ball mill,.. Linn-stunt: Limestone “1,6 I'llll.
The grindability of an ore in the process of mineral dressing can be determined by use of the Bond work index (Wi). This index is determined on a laboratory-scale using a Bond ball-mill and by .
, 2 and 3 show the grinding product composition changes during the Bond's grinding tests performance using the test sieves 74, 105 and 150 microns on limestone and andesite composite samples with .
Singh, Nitesh Kumar and Mohanta, M K and Rath, R K (2012) Determination of Shatter Index, Tumbler Index and Bond work Index of Limestone. Training Report (TR). CSIR -NML, Jamshedpur.
Calculations involving Bond’s work index are generally divided into steps with a different Wi determination for each size class. The low energy crushing work index laboratory test is conducted on ore specimens larger than 50 mm, determining the crushing work index (WiC, CWi or IWi (impact work index)).
This Table of Ball Mill Bond Work Index of Minerals is a summary as tested on ‘around the world sample’. You can find the SG of each mineral samples on the other table.
The Bond work index can be determined by many ways, some of them are as follows: with the traditional standard method in a (1) Bond-ball mill or in a (2) Hardgrove mill with the conversion of the Hardgrove method's result to Bond work index by an empirical formula, (3) with the more work-saving Karra algorithm (compared to the standard Bond method), where the Bond work index is estimated from the results of the Bond method's first two cycles.
The Bond work index determination according to the standard Bond's test is done on all these samples with compara-tive sieve size of 74, 105 and 150 microns. The Bond Work Index is calculated using the formula (Bond, 1961): (√ √) (1) where: W i – Bond work index (kWh/t); P c – test sieve mesh size (µm); G – weight of the test sieve .
This paper investigates grinding of mineral mixtures with different grindabilities in the Bond ball mill. Understanding the ore mixture grinding is of great importance in mineral processing. The energy required for crushing and grinding is presented by the Bond work index and is determined by means of Bond grindability test. This paper presents the experimental results of the Bond work index .
Metallurgical ContentBasic EquationsSize Distribution and Exposure RatioEquations for Work Index VariationsWork Index and Crack Energy 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” grinding power requirement calculation formula in Fred Bond’s original paper. You can also review the step-by .
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 (S 1 ) and Bond’s work index, Wi = -18.193 Ln (S 1 ) + 66.747 has been .
In the batch mill, approximately a 10 kg mass of lizenithne in the 32x25 .. which, in turn, is used to estimate the Bond ball mill work index. Get Price Fast test method for the determination of the .
Gulin machine in iron ore processing plant, ball mill bond work index for limestone. Gulin provide the ball mill bond work index for limestone solution case for you.
Here there are given tables from various sources for the Bond work index values of mining materials (ores, industrial minerals and rocks). These work indexes can be used for the determination of tumbling mills (rod, ball mills) power. Thus, the suitable mill dimensions can be effectively determined.
Accurate determination of limestone composition and reactivity are crucial in the selection of reagents for WFGD applications, especially for systems producing commercial grade gypsum products .