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The ability to simulate the Bond work index test also allows examination of truncated ball mill feed size distributions on the work index For grinding circuits where the feed to a ball mill is sent directly to the classifier and the cyclone underflow feeds the ball mill see Figure 310 a question arises as to whether this practice will alter the ball mill work index BW i of the material
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Dimensions: Dia20mm-Dia150mm
Application: Cement,Ball mill,Coal mill, slag mill,Mines,Power plant, etc.
More DetailsFeeding Size: 65-300mm
Discharging Size: 3-60mm
Production Capacity: 12-1000TPH
More DetailsFeeding Size: 120-1500mm
Product Capacity: 1-2200TPH
Application Field: Mining, metallurgy, construction, highway, railroad, and water conservancy, etc.
More DetailsFeeding Granularity: 0.03-1mm
Production Capacity: 2-40TPH
Applicable Range: Suitable for separating materials with 0.3-0.02 mm particle size, such as iron ore, ilmenite, chromite, pyrite, zircon, rutile, monazite, Phosphorus, tungsten, tin, tantalum, niobium, rare metals, non-metallic minerals
More DetailsFeeding Granularity: ≤20-≤25mm
Applied Materials: Limestone, calcite, barite, dolomite, potassium feldspar, marble, talcum, gypsum, kaolin, bentonite, medical stone, rock phosphate, manganese ore, iron ore, copper ore, gold ore,quartz, active carbon, carbon black, ceramic, coal, etc.
Applicable Range: Cement, silicate product, new building material, refractory material, fertilizer, black and non-ferrous metal ore dressing and glass ceramics production industry, etc.
More DetailsWarranty: 12 Months
Feeding Granularity: 35-60mm
Production Capacity: 12-360TPH
More DetailsProduction Capacity: 10-30TPH
Humidity of Raw Materias: 20±3(%)
Application Area: Slag industry, building material, metallurgy industry, ore processing industry, chemical industry, cement plant.
More DetailsHigh and New Industrial Zone, Kexue Revenue, High and New Technology Industrial Development Zone, Zhengzhou, China
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More DetailThe Bond’s BallMill Work Index is a measure of the resistance of the material to grinding in a ball mill This Index is widely used in the industry for comparing the resistance of different materials to ball milling for estimating the energy required for grinding and for ball mill scaleup
Get PriceA 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
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Get PriceThis Grindability Test or Bond Ball Mill Work Index Procedure is used to determine the Bond Work Index of minus six mesh or finer feed ore samples These equation application methods are used to process 12″ ore samples in a Ball Mill using a standard ball charge Below describes in general terms the Bond Work Index Procedure used by a Professional Metallurgical Testing Laboratory
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Get Priceand its correlation As a fast method the determination of the Bond index from the Hardgrove index by calculation is almost matching with measured Bond’s work index The Bond’s work index of the above rock samples calculated from the Hardgrove index value has
Get PriceMeanwhile the ore hardness has increased by 13 per cent to a Bond work index value of 15 kWht that led to a coarser flotation feed Karara Mine has decided to shift the comminution workload from the primary ball mill to the TowerMill circuit by bypassing the 100 µm fine screen in between the ball mill and TowerMill circuits
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Get PriceBond Work Index Procedure and Method This Grindability Test or Bond Ball Mill Work Index Procedure is used to determine the Bond Work Index of minus six mesh or finer feed ore samples These equation application methods are used to process 12″ ore samples in a Ball Mill using a standard ball charge
Get Price1 Introduction A Bond Ball Mill Work Index test is a standard test for determining the ball mill work index of a sample of ore It was developed by Fred Bond in 1952 and modified in 1961 JKMRC CO 2006This index is widely used in the mineral industry for comparing the resistance of different materials to ball milling for estimating the energy required for grinding and for ball mill
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Get PriceBond Work Index FormulaEquation Basic EquationsSize Distribution and Exposure RatioEquations For Work Index VariationsWork Index and Crack Energy The basic index equation isW 10 Wi√P 10 Wi√F1where W is the input required in kilowatt hours per short ton to grind from 80 passing F microns to 80 passing P microns and Wi is the index or the grinding resistance parameter
Get Pricethe different faces of quarry Bond work index of limestone Face4A results less than 20kwht remaining 6 samples are marked as hard rock because of high energy consumption and low grindability rate Index Terms Ball mill Bond Work Index Comminution Grindability Liberation Limestone Ultra
Get PriceKinetic grinding test approach to estimate the ball mill work Kinetic grinding test approach to estimate the ball mill work index 343 estimating the required energy for milling Levin 1989 and mill scalingup Man 2002 The W i parameter is obtained from Bonds ball mill grindability test Bond
Get PriceSAG is an acronym for SemiAutogenous Grinding SAG mills are autogenous mills but use grinding balls like a ball mill A SAG mill is usually a primary or first stage grinder SAG mills use a ball charge of 8 to 21 The largest SAG mill is 42 128m in diameter powered by a 28 MW 38000 HP motor
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Get Price1 Introduction Finding the bond work index of an ore type is crucial to determining the grinding energy required during comminution in a ball mill The bond work index is a constant characteristic related to the hardness of a specific ore type Bond work index is one of three different approaches that can be used to calculate the work index of an ore
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