Get in Touch
Blog
  1. Home >
  2. Blog >
  3. Blog Detail

Calculation of maximum ball size in mm for ball mill grinding

Sep 01, 2013 As the feed size is reduced further, less of the 50.8 mm balls and more of the 25.4 mm balls are required for the maximum capacity, attaining 100% of 25.4 mm balls for a feed size of 4.7 mm (Fig. 6d). The capacity difference between the best and the worst make-up ball

Products Recommended

  • Ball Mill Parameter Selection & Calculation - Power
    Ball Mill Parameter Selection & Calculation - Power

    Aug 30, 2019 1 Calculation of ball mill capacity. The production capacity of the ball mill is determined by the amount of material required to be ground, and it must have a certain margin when designing and selecting. There are many factors affecting the production capacity of the ball mill, in addition to the nature of the material (grain size, hardness, density, temperature and humidity), the degree of

  • The Effect of Ball Size Diameter on Milling Performance
    The Effect of Ball Size Diameter on Milling Performance

    A laboratory size ball mill of diameter 30 cm was used with ball media of sizes 10 mm, 20 mm and 30 mm respectively as shown in Figure 1. Quartz was the material used to run experiments, and was arranged into 3 mono-sizes namely -8 mm +5.6 mm, -4 mm +2.8 mm Abstract

  • The grinding balls bulk weight in fully unloaded mill
    The grinding balls bulk weight in fully unloaded mill

    Apr 11, 2017 The formula for calculating the average grinding balls diameter in the mill. ∅ср – the average grinding balls diameter, mm;; ∅i – the maximum grinding ball diameter in each class, mm; mi – the grinding ball mass of each class, kg. The grinding balls bulk weight determined by using tabular data. The grinding balls bulk weight

  • EFFECT OF BALL SIZE DISTRIBUTION ON
    EFFECT OF BALL SIZE DISTRIBUTION ON

    A.1 Batch grinding tests on single ball sizes 82 A.1.1 Particle size distributions obtained using 30.6 mm balls 82 A.1.2 Particle size distributions obtained using 38.8 mm balls 83 A.1.3 Particle size distributions obtained using 49.2 mm balls 86 A.2 Batch grinding tests on mixtures of balls 88

  • How Can I calculate new ball size and weight desing
    How Can I calculate new ball size and weight desing

    Mar 10, 2011 How Can I calculate new ball size and weight desing for ball mill. Dear All Expert, ... 4.Tonnage of grinding media u can calculate on the basis of dia.length and the filling degree of mill. Thanks . Pankaj. ... I used d80 of 3500 micron to be on safe side and got max ball dia. of 41 mm (use 50 mm steel balls)

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

    Commercial ball sizes 10 – 150 mm; Number, size and mass of each ball size depends on mill load and whether or not the media is being added as the initial charge. For the initial chargin of a mill, Coghill and DeVaney (1937) defined the ball size as a function of the top size of the feed, i.e., d †“V = 0.40 K ˆšF dB = ball size (cm)

  • Optimum choice of the make-up ball sizes for maximum
    Optimum choice of the make-up ball sizes for maximum

    Sep 01, 2013 As the feed size is reduced further, less of the 50.8 mm balls and more of the 25.4 mm balls are required for the maximum capacity, attaining 100% of 25.4 mm balls for a feed size of 4.7 mm (Fig. 6d). The capacity difference between the best and the worst make-up ball

  • SAG Mill Ball Sizing - Grinding & Classification Circuits
    SAG Mill Ball Sizing - Grinding & Classification Circuits

    With high aspect ratio SAG mills total charge to ball charge ratio should be greater than 2 (up to 2.5) for a coarse mill feed (say F80 110 mm). If the mill feed size is fine, say 50 mm or 30 mm, then you are looking at a total charge to ball charge ratio of about 1.5-1.6

  • 3 Grinding Media size formula - DOERING GmbH
    3 Grinding Media size formula - DOERING GmbH

    B ball diameter in (mm) C Cylpebs diameter in (mm) F size of mill feed in micron, 80 % of new mill feed passing Wi Bond Work Index (KWh/t) Cs per cent of critical mill speed (%) S specific gravity of mill feed (g/cm3) D inside mill diameter (m) K proportionality constant 350 for wet grinding 335 for dry grinding Subject to calculation

  • EFFECT OF BALL SIZE DISTRIBUTION ON MILLING
    EFFECT OF BALL SIZE DISTRIBUTION ON MILLING

    A.1 Batch grinding tests on single ball sizes 82 A.1.1 Particle size distributions obtained using 30.6 mm balls 82 A.1.2 Particle size distributions obtained using 38.8 mm balls 83 A.1.3 Particle size distributions obtained using 49.2 mm balls 86 A.2 Batch grinding tests on mixtures of balls 88

  • How Can I calculate new ball size and weight desing for
    How Can I calculate new ball size and weight desing for

    Mar 10, 2011 How Can I calculate new ball size and weight desing for ball mill. Dear All Expert, ... 4.Tonnage of grinding media u can calculate on the basis of dia.length and the filling degree of mill. Thanks . Pankaj. ... I used d80 of 3500 micron to be on safe side and got max ball dia. of 41 mm (use 50 mm steel balls)

  • How can one select ball size in ball milling and how much
    How can one select ball size in ball milling and how much

    Jan 31, 2015 More balls with small size results in fine powder. As a thumb rule powder to be milled should be taken as 25% of total ball weight. If the quantity of charge is very less then milling balls will

  • boll mill grind capacity calculation
    boll mill grind capacity calculation

    CALCULATION OF MAXIMUM BALL SIZE FOR BALL MILL GRINDING . how to calculate the ball mill capacity tph Ball Mill Design Power Calculation Ball Mill Grinding Capacity Calculator Ball Mill Motor Power Sizing Calculation Ball Mill Design Sizing Calculator The power required to grind a material from a given feed size to a given product size can be estimated by using the following equation where W

  • how to decide ball grinding mill media adding size
    how to decide ball grinding mill media adding size

    Calculate and Select Ball Mill Ball Size for Optimum Grinding. Aug 02, 2013 In Grinding, selecting (calculate) the correct or optimum ball size that allows for the best and optimum/ideal or target grind size to be achieved by your ball mill is an important thing for a Mineral Processing Engineer AKA Metallurgist to do

  • Experimental Study on the Grinding Rate Constant of a
    Experimental Study on the Grinding Rate Constant of a

    and 30 mm were used and feed size was varied on the order of 10-3 to 10-1 as a ratio of ball diameter. Feed sizes and ball diameters used in the experiment are shown in Table 1. Feed mass and ball mass were set at 200 g and 2 kg, respectively, in consideration of the optimum grinding conditions reported in

  • Optimization of mill performance by using
    Optimization of mill performance by using

    to the volumetric mill filling which influences grinding media wear rates, throughput, power draw, and product grind size from the circuit. Each of these performance parameters peaks at different filling values. In order to contin-uously optimize mill operation, it is vital to obtain regular measurements of the ball load and pulp position

  • Grind - Molycop
    Grind - Molycop

    Balls for use in mineral processing ball milling operations are designed for maximum abrasion resistance using high carbon content and high hardness levels. PRODUCT SPECIFICATIONS. SIZE Molycop manufactures forged grinding balls for use in ball milling and regrind applications in nominal sizes from 1.0” to 4.0” in diameter