Silver ore: 17.0: 17.0: 13-22: 19: Slag: 10.4: 10.2: 11.3: 11.5: 11.0: 17.2: 10-27: 26: Slag iron blast furnace: 12.2: 18.3: 12-26: 8: Slate: 15.8: 14.3: 15.7: 16.0: 16.0: Sodium silicate: 14.9: 13.4: 14.7: 15.0: Spodumene ore: 11.4: 10.4: 11.4: 11.5: Steel mill nerup: 22.2: 6-89: 16: Syenite: 14.5: 13.1: 14.4: 14.5: Tale: 15.3: 8-22: 10: Tin ore: 12.0: 11.2: 10.9: 12.0: 11.5: 11.8: 10-14: 12: Titanium ore: 13.6: 11.9: 12.3: 13.6: 14.0: 11.4: 7-17: 9: Tungsten ore
Iron ore bond work index Grinding & Classification Circuits Metallurgist & Mineral Processing Engineer.
Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond work index of a low grade iron ore is determined using modified Bond’s method. Samples of iron ore were sourced using random method. Iron ore of known weight were ground using the laboratory ball mill grinding machine. 80% passing size for the iron ore was obtained at 150m sieve size for the
Bond index is useful in designing of grinding system in mineral processing. In this study, the Bond work index of Birnin- Gwari iron ore in northern Nigeria is determined using modified Bond’s method using ‘reference ore’. Samples of iron ore were sourced using random method,
The Bond work index for ‘B’ and ‘C’ type iron ore sample are of 11 and 10 KWh/mt. The variation of BWI of three iron ore sample may be varied during the geological formation of each iron ore sample. The output product of three iron ore sample composed of three different size fractions when ground in Bonds
Bond work index studies were carried out for the BHQ and BHJ ores with different product fineness in order to evaluate the energy requirements in fine grinding. A higher Bond work index value was
The most widely used parameter to measure ore grindability is the Bond work index, Wi (Magdalimovic,1989). Numerically the work index is the energy required in Kwh/short ton to reduce a given material from theoretically infinite size to 80% passing size of 100 microns
and aWork Index of11,5kWh/t wasfound. Not only to15,6kWh/t astheapertures ofthelimiting screening wastheWork Index reduced toamorerealistic figure by werereduced from425to150 ~m.TheWork Index then themodified procedure, butthenumber ofcyclesrequired increased abruptly to44,2kWh/t, andnofewerthan44
Bond grinding work index of indian iron ore youtube 24 dec 2013 crushing news ilmenite bond work index in chennai india bond work index of iron grindability work index for iron ore cone crushers read more. Get Price. Customer case. 240T/H Granite Crushing Line In Russia.
A higher Bond work index value was found for the BHJ ore (15.4 kWh/ton) than for the BHQ ore (12.4 kWh/ton). A decrease in the product particle size was associated with an increase in the work
The Bond work index is commonly agreed as a grindability factor for ores in order to relate different material compositions . Several works related to the strength of the Bond test with respect to the grindability factor are discussed [7,8,9,10,11,12,13].
An online calculator lets you calculate Top Ball Size of Grinding Media for your mill. Use this Equation & Method to properly grind your ore. When Bond introduced the Work Index concept (Bond 1952), he introduced a new method for determining the energy required
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 . Get Price (PDF) A quick method for bond work index approximate value
The test determines the Bond Impact Work Index which is used with Bond’s Third Theory of Comminution to calculate net power requirements when sizing crushers*. It is also used to determine the required open-side settings (jaw crushers and gyratory crushers) or closed-side settings (cone crushers) for a given product size.
The new approach is adapted to identify the retention time (RT) of the iron ore in the mill, and the total RT taken for the blend sample in the Bond’s ball mill is considered as the reference grinding time for milling in the Laboratory Ball Mill (LBM). The desired narrow PSD (− 150/+ 10 µm) with acceptable hematite liberation is achieved at an optimal grinding time of 7 min in the LBM.
25-09-2010· The influence of microwave pre-treatment on grindability of iron ore (Orissa, India) was investigated by grindability tests. SEM analysis characterized the micro-fractures in microwave treated sample. This may be due to the thermal stress cracking resulted from microwave energy pre-treatment. XRD analysis showed the crystalline content of the sample.
The paddle is made from standard alloy steel hardened to 500 Brinell. The Abrasion Index is determined from the weight loss of the paddle under standard operating conditions. SGS's results are ranked against our AR MacPherson database so they can be compared against other ores. Feed Sample Requirements: 1.6 kg of minus 3⁄4” plus 1⁄2” ore.
Iron Ore data, forecasts, historical chart was last updated on April of 2021. Iron Ore is expected to trade at 177.32 USD/MT by the end of this quarter, according to Trading Economics global macro models and analysts expectations. Looking forward, we estimate it to trade at 154.87 in 12 months time. 1Y.
The iron ore pelletizing process consists of three main steps: 1. Pelletizing feed preparation and mixing: the raw material (iron ore concentrate, additives anthracite, dolomite and binders are prepared in terms of particle size and chemical specifications, dosed, and mixed together to feed the pelletizing process; 2.