﻿ ball mill operatng work index calculation

## ball mill operatng work index calculation

• ### Ball Mill Design/Power Calculation

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 maximum and finally the type of circuit open/closed

• ### ball mill work index calculation

Roller Mill Operatng Work Index Calculation. Ball Mill Design/Power Calculation. 2018-6-21 · 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 andget price

• ### ball mill operatng work index effeciency

The ball mill work index laboratory test is conducted by grinding an ore sample prepared to passing mm mesh to product size in the range of m mesh, thus determining the ball mill work index wi b or bwi the work index calculations across a narrow size range are conducted using the appropriate laboratory work

• ### Application of Operating Work Indices in Autogenous

Note that the ball mill operating work index is applied only on the portion that needs the additional grinding (Q2), which renders to the AG/SAG mill the credit for the fraction of the material that had been already ground to final product (Q1). To calculate the operating work indices, equations  and  must be solved. The equations contain three unknowns: 1. Q1: the Fines Factor, 2.

• ### Ball Mill Design/Power Calculation

12/12/2016· Ball Mill Power Calculation Example 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

• ### ball mill work index calculation

Roller Mill Operatng Work Index Calculation. Ball Mill Design/Power Calculation. 2018-6-21 · 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 andget price

• ### Application of Operating Work Indices in Autogenous

Note that the ball mill operating work index is applied only on the portion that needs the additional grinding (Q2), which renders to the AG/SAG mill the credit for the fraction of the material that had been already ground to final product (Q1). To calculate the operating work indices, equations  and  must be solved. The equations contain three unknowns: 1. Q1: the Fines Factor, 2.

• ### ball mill operatng work index effeciency

The ball mill work index laboratory test is conducted by grinding an ore sample prepared to passing mm mesh to product size in the range of m mesh, thus determining the ball mill work index wi b or bwi the work index calculations across a narrow size range are conducted using the appropriate laboratory work

• ### Ball Mill Design/Power Calculation

12/12/2016· Ball Mill Power Calculation Example 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...

• ### (PDF) A quick method for bond work index approximate

The Bond work index, Wi, is defined in a Bond ball mill on the samples of standard size − 3.327 + 0 mm.

• ### AMIT 135: Lesson 7 Ball Mills & Circuits Mining Mill

Mill diameter; Mineral density; Work Index. Bond estimated the amount of wear in terms of kilograms per kWh based on the abrasion index, A;, i.e., Wet Ball Mill = kg kWh = 0.16(A i-0.015) 0.33; Dry Ball Mill = kg / kWh = 0.023A i 0.5; Replacement Ball Size

• ### Calculation of energy required for grinding in a ball mill

1/1/1989· The value of the Bond work index is calculated according to eq. 2: 44.5 Wi = 1.1 14.27 kWh/t 1540.23 1 51082f 10 10 With this value of Wi according to eq. 1, the energy consumption is determined.

• ### Operating work index is not the specific energy

The work index can either be measured in the laboratory (the Bond ball mill work index determination is a common example) or it can be calculated from the operating performance of a milling circuit...

• ### O. I. SKARIN N. O. TIKHONOV CALCULATION OF THE REQUIRED

retically, the work index equals the amount of energy (kWh/t) consumed to comminute 1 t of infinite size material down to 80% content of –100 μm size grade. The mechanism and na-ture of mineral comminution greatly depends on the size of the mineral particles; therefore, a work index is considered

• ### 20150505 Bond Efficiency-GMG-ICE-v1-r04 Determining the

Where, WioACTis the Actual Operating Bond Work Index (kWh/t), W is the specific energy input (kWh/t), P80 is the 80% passing size of product (µm), and F80 is the 80% passing size of circuit feed (µm). 2. Calculate the Standard Circuit Bond Work Index (WiSTD) for the material being processed (equation 3). Wtotal

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