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crushing energy consumption coal kick bond index
Calculation model of coal comminution energy
2016-6-1 · An empirical model of coal comminution energy consumption was proposed. in which laws of Rittinger, Kick and Bond are notable (Rittinger, 1867, Kick, 1885, Bond, 1952). the aim of the present work is to provide experimental data and develop a calculation model on the energy-size relationship of coal crushing. 2. ExperimentsCORRELATION BETWEEN BOND WORK INDEX AND ,2014-6-27 · The crushing energy in mineral processing industry is usually determined by empirical Bond index, regardless of the mechanical properties of a rock. Although several attempts have been made to obtain the comminution energy based on theoretical approaches, it would be beneficial to examine this relation based on physical concept.
Bond Index & Hardgrove Grindability Index Tests for
Bond Index Test Test conducted on a Bond Index testing mill (Bico-Braun, USA) 700ml of sample milled for 100 revolutions. New number of revolutions isKicks LawIt state that the work required for crushing a,Determine the energy required to crush the material from 25 mm to 3.5 mm. Assuming: a) Ritttingers law b) Kicks law c) Bond law 2) A material is crushed in a blake jaw crusher such that the average size of particle is reduced from 50 mm to 10mm with the consumption of energy 13.0KW/(kg/s).What could be the consumption of energy needed to crush
IMPACT OF PHYSICAL AND MECHANICAL PROPERTIES
2018-12-5 · strength. From an energy consumption viewpoint, it is clear that blasting with the intention of decreasing the Bond work index (Wi) will produce large energy savings (Workman and Eloranta 2003). In the previous research the specific crushing energy was determined indirectly based on the pendulum or falling weight tests.Rock Crushing Theory and Formula using Kick & ,2016-3-11 · Rittinger’s theory and law of the energy expended in crushing of rock is that the work of crushing is proportional to the reduction in diameter; or, as I have more fully expressed it: “The work done in crushing is proportional to the surface exposed by the
Crushing of coal and calculation of size reduction
2015-2-25 · Crushing efficiency has been defined in the literature from the power consumption point of view. But while operating a process plant, it is more important that the crushing efficiency is defined in terms of the requirement of subsequent process. Crushing of coal and calculation of size reduction efficiency. Bond Work Index Bond Tests SGS,* Bond F. C., “Crushing Tests by Pressure and Impact”, Trans AIME, Vol 169, 1947, pp 58-66. Bond Rod Mill Grindability Test. The test determines the Bond Rod Mill Work Index which is used with Bond’s Third Theory of Comminution to calculate net power requirements when sizing ball mills*. Various correction factors may have to be applied.
Rittinger an overview ScienceDirect Topics
Zeki Berk, in Food Process Engineering and Technology, 2009. 6.3.3 Energy consumption. As a rule, size reduction operations are heavy in energy consumption (Loncin and Merson, 1979; Hassanpour et al., 2004).As an example, the cost of energy is the single largest item in the total cost of wheat milling. Milling of one bushel (approx. 27 kg) of wheat requires 1.74 kwh of electric energy (Ryan,