The interaction parameters for f80 of 1000 μm follow the order: interaction between grinding time and work index (BD) > interaction between ball size and solids content (AC) > interaction between ball size and work index (AD).

The full suite of Bond comminution tests provide the Ball Mill Work Index (BWi), the Rod Mill Work Index (RWi), the Crusher Work Index (CWi) and the Abrasion Index (Ai).

The Bond Ball Mill Work Index can be used in the design calculations and simulations using JKSimMet of a new grinding circuit. A Bond Ball Mill Work Index may also be used in the simulation and optimisation of existing mill(s) and the associated grinding circuit(s).

Ball Mill Design/Power Calculation. A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80% passing ¼ inch (6350 microns).

See Annexes A, B and C for Bond crushing, rod mill and ball mill test equipment and procedures. Accuracy of Comparative Circuit Work Index Efficiency Determinations

The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific ...

standard Bond crushing, and rod mill work indices, abrasion indices and by Dawson for Bond Ball Mill Work Index tests using crushed feed, and Standard Autogenous Grinding Design (SAGDesign) Tests, patented by Outokumpu.

bond work index ball mill design and safety factors. Ball Mill Instruction Manual (PDF)BICO Inc. The F.C. Bond Ball Mill is a small universal laboratory mill used in calculating the grindability .. diameter, as shown in the work index Equation (1). .. straincd motion path, although many dusbcrs bave safetyally, or thc crusher is designed to ...

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from 1.4 to 34 kWh/t and Bond ball mill work index values vary from 6 to 24 kW/t for the same ores. Project design tonnages varied from 200 to 150,000 t/d, SAG mill sizes varied from 10 ft

Similar to a Comparative Work Index, this test is an open circuit dry batch grindability test run in the standard Bond Ball Mill for a set time. It can be used at mesh sizes from 65 to 200 mesh (normally 100 mesh). The test requires calibration against the standard Bond Ball Mill Work Index test to estimate the Work Index. It is used to show the orebody hardness profile and to predict ...

See this useful summary Table of Bond Work Index by Minerals. 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 a very large size to 100 um.

Trends with selection and sizing of large grinding mills — Australian ... Jun 10, 2011 ... Developments in mill design has allowed for larger capacity mills to be ... feed sizes up to 12.7mm but the oversize feed factor impacts negatively for hard ores.

factor affecting the efficiency of ball mill grinding. ... The design elements outlined in the previous subsections can be applied in various ways to achieve a wide .:

Bond for 50 mm > d > 0.05 mm = ... W is the work index measured in a laboratory ball mill (kilowatt-hours per metric or short ton) P 80 is the mill circuit product size in micrometers; F 80 is the mill circuit feed size in micrometers. Rod mill. A rotating drum causes friction and attrition between steel rods and ore particles. [citation needed] But note that the term 'rod mill' is also used ...

Home >News > Bond Ball Mill Work Index Determination Bond Ball Mill Work Index Determination Prompt : Caesar is a famous mining equipment manufacturer well-known both at home and abroad, major in producing stone crushing equipment, mineral separation equipment, limestone grinding equipment, etc.

WiBM Bond Ball Mill Test Work Index (kWh/t) Wic Bond Impact Crushing Test Work Index (kWh/t) WioACT Actual Operating Bond Work Index determined from measurements on the circuit (kWh/t) WiRM Bond Rod Mill Test Work Index (kWh/t) WiSTD Standard Circuit Bond Work Index (expected or designed) used for circuit design. Specific energy requirement at the drive pinions. 3.KEYWORDS Work Index, Work ...

Ball Mill Design/Power Calculation - Mineral Processing/Metallurgy . Mar 31, 2016 The basic parameters used in ball mill design (power calculations), rod mill or any Bond Work Index, bulk density, specific density, desired mill tonnage Wi = work index, which is a factor relative to the kwh/short ton required .

power-based design and analyses of conventional grinding circuits (Bond 1961). Bond's third theory is presented in [1]. By rearranging the formula to [2], the operating work index (Wio) of an existing grinding circuit can be calculated, given known mill power draw, throughput, feed and product size distributions. kWh/t = Power applied per ton of feed to the grinding unit Wi = The standard ...

The Bond rod mill work index is not as common as the Bond ball mill work index, and there are two different variations on the mill apparatus.The SAGMILLING.COM models expect a mill with a "wave liner", and is not compatible with mills using "smooth liners".

factors for selection of coal mill . iron ore crusher selection criteria work grindability. iron ore crusher selection bond work index ball mill design and safety factors The selection of ball mill crusher selection criteria for coal and

bond work index ball mill design and safety factors Missouri S&T -- bond work index ball mill design and safety factors,, sand particle shape analyzers, and plasticity index), a 3-tier Micro-Deval station, a wet-ball mill device, aggregate crushing value test equipment, methylene blue testing equipment, sand organic impurities kit, a water ...

bond work index ball mill design and safety factors. optimum SAG Mill product size (X=P80), during the design phase of the SAG and Ball milling... » Learn More Bond Work Index | MEI Online

The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific density, desired mill tonnage capacity DTPH, operating % solids or pulp density, feed size as F80 and maximum 'chunk size', product size as P80 and ...

To avoid the introduction of any design inefficiency factors in the Bond reference standard circuit, assume 8 foot (2.44 m) diameter, overflow mills, and use a rod mill feed size (F80) of 16,000 µm and a rod mill product size of 1,000 µm. Also note that in order for no correction factor for ball mill product fineness to apply, the ball mill circuit P80 should be no less than approximately 70 ...

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