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Processing capacity:138-350t/h
Feeding size:≤16mm
Appliable Materials: quartz,new-type building material,glass ceramics,ore,construction rubbish,glass etc. All grindable materials, various metal ores, non-metallic ores, non-flammable and explosive materials
Theball mill work indexlaboratory test is conducted by grinding an ore sample prepared to 100 passing 336 mm 6 mesh to productsizein the range of 45150 m 325100 mesh thus determining theball mill work indexwi b or bwi the work index calculations across a narrowsizerange are conducted using the appropriate laboratory work index determination for the materialsize
Get PriceThe grinding jar for the bond index rod mill is 12 x 24 in size and has a waveshaped designat least 15 to 20 kg sample material is required to simulate a closed grinding circuit in a ball or rod millthe rod mill work index rwi is used for particle size determination in a size range from 25 mm down to 21 mm whereas ball mill work
Get PriceThis grindability test orbond ball mill work indexprocedure is used to determine thebond work indexof minus six mesh or finer feed ore samples these equation application methods are used to process 12 ore samples in aball millusing a standardballcharge below describes in general terms thebond work indexprocedure used by a professional metallurgical testing
Get PriceBond work index test ball millus 13800 the fcbond work index test ball millwas designed by f c bond for use in determining the bond index a measure of grindability and power required for grinding applications the fcbond millsare used in laboratories throughout the world a copy of fred cbonds methodof crushing and grinding for determination of the bond index is
Get PriceThemethodis used tosizeacement ball millefficiency correction factors are applied with thebond equationthemethodis valid both for clinker grinding and for raw materials grinding thismethodonly gives a rough and initial idea forsizingacement ball millto go ahead a deeper study is necessary withball millssuppliers or a specialized engineering office
Get PriceThemethodis used tosizeacement ball mill efficiency correction factors are applied with thebondequation themethodis valid both for clinker grinding and for raw materials grinding thismethodonly gives a rough and initial idea forsizingacement ball mill
Get PriceDec 12 2016 the basic parameters used inball milldesign power calculations rodmillor any tumblingmill sizingare material to be ground characteristicsbond work index
Get PriceThe expermethod the ttest is performed onwork indexvalues by the two iment results confirm that the introducedmethodis a rapid and methods in respect of the standardbond method tables 3 and 4 accuratemethodto determine thebondrodmill work index
Get PriceGrindability indextestmethod procedure 911metallurgist the proposedgrindabilitytest uses thebondstandard testmilland a energy required for grinding comparison of plant data estimates based on thebond worksizeto another it can be expressed in different ways the best known being the in a laboratory hatchball mill and the times required for each material
Get PriceIn practice it is possible to find materials of nonstandardsizethat are finer than 3327 mmin thiswork a procedure for the calculation of thebond work indexis suggested for cases when the
Get PriceCorrection ofbond ball mill work indextest for closing meshsizesit is commonly known that one must run thebond ball mill work indextest such you pick a closing mesh to give a p80 close to desired grindsize
Get PriceThe grinding jar for thebond indexrodmillis 12 x 24 insizeand has a waveshaped design at least 15 to 20 kg sample material is required to simulate a closed grinding circuit in aballor rodmill the rodmill work indexrwi is used for particlesizedetermination in asizerange from 25 mm down to 21 mm whereasball mill work
Get PriceOct 15 2015bond work indexbwi hardgrove grindability index hgi testsfor biomass coal bwi can predict the potential formillchoking of biomass in a tube andball mill hgi is a poormethodof predicting grindability of biomass in vertical spindlemills pellets should be composed of predensified particles close to the targetsize
Get PriceMetallurgical contentsizing aballor rodmill sizinga crusher using 1200 wi of ores from databasehow to find thework indexwihow to find theworkinput whow to correct calculatedworkindexes for unnatural feedshow to find impact crushing strength from theworkindexhow to findwork indexfrom closed circuit grindability testshow to findwork index
Get PriceNov 21 2012 introduction the bond grindability test for determining the bond work index wi is conducted in a bond ball mill having the dimensions d l 305 305 mm and a speed revolution of 70 min 1 the mill is loaded with balls from 155 up to 306 mm in diameter having thus a total mass of 20125 kg this test simulates a closed circuit of dry grinding of samples of
Get PriceBall mill sizing with bond method work index baseball millmachine designs the basic parameters used inball milldesign power calculations rodmillor any tumblingmill sizingare material to be ground characteristicsbond work index bulk density specific density desiredmilltonnage capacity dtph operating solids or pulp
Get PriceThe test determines the bond ball mill work index which is used with bonds third theory of comminution to calculate net power requirements various correction factors may have to be applied w wi 10p 10f where w net power consumption in kwht wi bond work index either imperial or metric units
Get PriceMilldiameter mineral densitywork indexbondestimated the amount of wear in terms of kilograms per kwh based on the abrasionindex a ie wetball mill kg kwh 016a i0015 033 dryball mill kg kwh 0023a i 05 replacementball size
Get PriceEquations for power draft capacity andworkinput for predicting the performance of industrial grindingmillsare derived based on torque measurements using a laboratory instrumentedmill these derivations are based on mechanical principles and on the firstorder kinetics of the grinding process rittingers kicks andbonds laws expressworkinput aswork indexwi
Get PriceJul 30 2020 a bond ball mill work index may also be used in the simulation and optimisation of existing mills and the associated grinding circuits sample requirements a minimum of 8 kg of material crushed to nominally minus 10 mm is preferred jktech would stage crush the sample to minus 335 mm as required for the bond ball mill work index test feed
Get PriceThe p80 and f80 are the 80 passingsizesof the product and the feed m respectively finally efx in the product of the rowland efficiency factors which depend uponmillsize and type of
Get PriceThe procedure for the shortened methodthe procedure for determining thebondrodmill work indexbased on the shortenedmethodis as followsa crushed feed of 100 passing 127 mm is prepared and sieved to find thesizedistribution and d 80 to find the m value equivalent to 1250 cm 3 represents crushed feed is weighed
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