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Power requirement by the size reduction machine is. P = power required Empirical Equations to estimate energy : Bond (1952). Kick (1885) 5. FKKKSA where. Rittinger s law : work required in crushing is proportional to the new surface created. P = power required. P m . =K r. 1. D sb. " " 1. D sa. " #. $. %. %. % . %. .
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Oct 10, 2014 The product size is to be such that 80% passes through an opening of 3 in. Estimate the power consumption per ton of feed (Ei = 13.1 kW hr mm/ton)? • What will be the product size of the material having reduction ratio of 10? If the energy required to crush 2 tons of material is 100 kW hr. Assume Ei = 10 kW
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power required for crushing the material mainly depends on the product THE POWER REQUIRED FOR CRUSHING IS DEPENDS UPON THE SIZE DENSITY In a steady state temperature distribution with no heat generation, the differential equation is (d / dr) (r dT / dr) = 0 where r is for radius and T is for temperature.
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Equation 1 to drive the corrected power requirement (Rowland, 1982). The equation for Bond's Third Theory of Comminution was originally developed for use with conventional crushing and grinding circuits (crusher-rod-ball mill or crusher-ball mill). By the 1970s, the appliion of conventional circuits tended to be limited
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A study was made to correlate electric energy consumption per dry weight (kWh/t) of feed crushed with mean residence time of hammer mills. An empirical equation to estimate momentary electric power (kW) required for crushing by screen hammer mills was obtained. An approximate estimation of the motor electric power
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Mar 19, 2017 Various grinding experts discuss a few methods and techniques used to determine SAG and AG mill power requirements of circuits based on ore Gives you both SAG hardness and Bond Ball Mill Work Index (on SAG ground ore, not from crushed cores) – all you need to design circuit size mills.
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power requirement for grinding - miningbmwGrinding - Brookes Machine Tools. We keep a large stock of used grinding machines, some of which are listed below . Contact us for photographs, more information or to power requirement for grinding – Grin.
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Sep 22, 2017 You can read all the details of this now “Biblical” grinding power requirement calculation formula in Fred Bond's original paper. For any circuit, whether a crushing circuit, a rod mill, or a closed ball mill circuit, the Work Index always means the equivalent amount of energy to reduce one ton of the ore from
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Estimation of power consumption in a disintegration process in disc crushers. •. Dynamic analysis of forces acting on the particles and the disc crusher. •. Detailed analysis of the resultant force on the particles was performed. •. The consumed power is calculated with the forces acting on the mobile disc. •. The calculated
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Estimation of power consumption in a disintegration process in disc crushers. •. Dynamic analysis of forces acting on the particles and the disc crusher. •. Detailed analysis of the resultant force on the particles was performed. •. The consumed power is calculated with the forces acting on the mobile disc. •. The calculated
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Oct 5, 2013 It has been developed based on the energy needed for causing deformation, creating new surface, or enlarging cracks. It is not possible to estimate accurately the power requirement of crushing and grinding equipment to effect the size reduction of a given material, but a number of empirical laws have
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Bleiwas, D.I., 2011, Estimates of electricity requirements for the recovery of mineral commodities, with examples . the in-pit crusher at the Bingham Canyon Mine to the Copperton beneficiation plant in Utah,. USA. .. geographic area; (5) estimate power requirements for future mineral resource development on existing or
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Abstract: Analytical expressions describing dependence between basic parameters of potash ore crushing process have been constructed in the paper. While taking in account the generality of the Kirpichev formula some corrections have been made for direct applicability of the given hypothesis in calculation of energy
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Mar 19, 2017 Various grinding experts discuss a few methods and techniques used to determine SAG and AG mill power requirements of circuits based on ore Gives you both SAG hardness and Bond Ball Mill Work Index (on SAG ground ore, not from crushed cores) – all you need to design circuit size mills.
Get Price
Mar 17, 2017 Knowing the Work Index, one has but to apply the proper given equation to determine the power input required. The calculated power input in turn enables you to select the proper crusher or grinding mill unit. Selection of various sizes of machines is made from the power requirements listed in equipment
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Decision-making on selection of SAG mills increasingly uses the methods of sizing the milling power based on laboratory tests on grindability of minerals. This article considers one of such methods allowing determination of mill characteristics based on the Bond work indexes of crushing, rod milling and ball milling.
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6 years ago. Mukesh Dabhi. Junagadh Agricultural University. It is required to know about the strength of the stone to be crushed and accordingly size of the original stone as well as crushed stone affect the power requirement. There is an equation for size reduction. E = K × ΔS. where. E = energy required for size reduction,.
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5.1 MODELS FOR JAW CRUSHER POWER CONSUMPTION AND PRODUCT SIZE. 5.1.1 POWER . Eloranta (1997) calculated the expected power consumption of a crusher using Bond's. “theory” and found that the of selecting and evaluating crushing equipment, and determining power requirements, based on product
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Mar 19, 2017 The example you've given is missing information needed to calculate the “A” term – it doesn't tell you the height of the crushing chamber. The Crusher Size (in.) Power Required (hp). Closed side setting (in.) 2. 3, 4, 5, 6, 7, 8, 9, 10. 2036, 75, 45, 70, 100, 125, 150. 2042. 75, 60, 85, 120, 150, 180. 2436.
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Oct 10, 2014 The product size is to be such that 80% passes through an opening of 3 in. Estimate the power consumption per ton of feed (Ei = 13.1 kW hr mm/ton)? • What will be the product size of the material having reduction ratio of 10? If the energy required to crush 2 tons of material is 100 kW hr. Assume Ei = 10 kW
Get Price