We Have More Than 40 Years of Experience.
Blog
  1. Home >
  2. Blog Detail

Ball mill viva questions

Jan 03, 2022

Jan 28, 2019 So, here are more than 7 questions you can prepare for in advance of your PhD viva: You can now check out this post too for 67 practice viva questions! . 1. Summarise your thesis/research in 3 minutes. The classic starter question to summarise your research. But one top tip for preparing for this one: prepare a 1 minute, 3-5 minute and 10

Get Price

Popular products

  • Ball Mill Principle, Construction, Uses, Advantage
    Ball Mill Principle, Construction, Uses, Advantage

    Aug 17, 2021 C. Ball mill is an open system, hence sterility is a question D. Fibrous materials cannot be milled by ball mill. 10. What particle size can be obtained through ball mill? A. 20 to 80 mesh B. 4 to 325 mesh C. 20 to 200 mesh D. 1 to 30 mm. ANSWERS:-1. Both B and C 2. Optimum speed 3. Longitudinal axis 4. Both 5. A – 3 B – 4 C – 2 D – 1 6

    See Details
  • 281 questions with answers in MILLING | Science topic
    281 questions with answers in MILLING | Science topic

    Dec 12, 2021 For example grinding with planetary ball mill makes a wide PSD which is not desired. I want o mill silica powder (D90=100 , D10=50 micron) to fine powder (D90 10

    See Details
  • Ball Milling FAQ - Page 2 - Newbie Questions - APC Forum
    Ball Milling FAQ - Page 2 - Newbie Questions - APC Forum

    Sep 02, 2009 I use the guts of a old lexmark printer to mill small 100g batches, the whole drive section comes out in one piece. Its surprisingly powerful as both shafts are driven via nylon gears, i use a 500ml container (3 od x 6 long) half filled with 150 x 1/2 lead balls

    See Details
  • Ball Mill Working Principle And Main Parts
    Ball Mill Working Principle And Main Parts

    Ball Mill Working Principle. To be chosen according to the grinding material, material is composed of a ball mill feed end of the hollow shaft is arranged in the tube body, when the ball mill cylinder rotation time, grinding body due to inertia and centrifugal force, the effects of friction, making it attached to the cylinder liner on the cylinder body away, when taken to the height of a

    See Details
  • Solved: Inventor Cam , breaking edge with ball mill
    Solved: Inventor Cam , breaking edge with ball mill

    Dec 13, 2021 Inventor Cam , breaking edge with ball mill. I need to break an edge along a compound angles, basically along 2 chamfers intersect using a 1/8 ball mill. I have tried using trace , it follows the path in simulation but not with posted g-code, in the passes tab I use sideways compensation left but it does not add a G41 cutter comp, I attached

    See Details
  • Multiple Choice Questions on Mechanical Operations
    Multiple Choice Questions on Mechanical Operations

    2. Wear and tear in wet crushing is more than that in dry crushing of materials. 3. Size enlargement (opposite of size reduction) is not a mechanical operation. 4. A 'dust catcher' is simply an enlargement in a pipeline which permits the solids to settle down due to reduction in velocity of the dust laden gas. Correct

    See Details
  • Grinding Circuit Overload - Grinding & Classification
    Grinding Circuit Overload - Grinding & Classification

    My company using ball mill as the second stage of grinding usually experiences high mill mass. we are therefore forced to grind out in order to reduce the mill mass. We also experience excessive overflow of materials/feed entering the ball

    See Details
  • 37 Basketball Quiz Questions and Answers: Alley-Oop –
    37 Basketball Quiz Questions and Answers: Alley-Oop –

    Dec 27, 2020 Basketball Quiz Questions and Answers. 1. What is an alley-oop? A. The ball-handler throws the basketball near the basket to their teammate who dunks it in. B. The ball-handler rolls around their teammate to protect the ball from the enemy. C. The ball-handler throws the ball from the half-court

    See Details
  • Ball mill - Wikipedia
    Ball mill - Wikipedia

    A ball mill, a type of grinder, is a cylindrical device used in grinding (or mixing) materials like ores, chemicals, ceramic raw materials and paints.Ball mills rotate around a horizontal axis, partially filled with the material to be ground plus the grinding medium. Different materials are used as media, including ceramic balls, flint pebbles, and stainless steel balls

    See Details
  • Ball Mills - Mt Baker Mining and Metals
    Ball Mills - Mt Baker Mining and Metals

    Ball Mills. Ball mills have been the primary piece of machinery in traditional hard rock grinding circuits for 100+ years. They are proven workhorses, with discharge mesh sizes from ~40M to 200M. Use of a ball mill is the best choice when long term, stationary milling is justified by an operation. Sold individually or as part of our turn-key

    See Details
  • BALL MILL BUCKET - Gar-Bro Concrete Equipment
    BALL MILL BUCKET - Gar-Bro Concrete Equipment

    Certain applications require special buckets. When transporting steel balls, an ordinary concrete bucket just isn’t built heavy enough. That is where the GAR-BRO Ball Mill bucket comes in. This bucket is specially designed to withstand the extreme use of transporting heavy steel balls. With its thick, steel cone, and heavy duty gate, it is ideal for this application. Available in various

    See Details
  • How to Make a Ball Mill: 12 Steps (with Pictures) - wikiHow
    How to Make a Ball Mill: 12 Steps (with Pictures) - wikiHow

    Aug 10, 2020 Ball mills are a special instrument used to break up hard solids into a fine powder. They are similar to rock tumblers in that the instrument is a rotating container filled with heavy balls to grind the substance into powder. Ceramic material, crystalline compounds, and even some metals can be ground up using a ball mill

    See Details
  • Topic Wise MCQs on Pharmaceutical Engineering for B
    Topic Wise MCQs on Pharmaceutical Engineering for B

    Apr 13, 2021 22. For effective operation of ball mill the ball charge (% volume of mill filled by the balls) should be (a) 60–70% (b) 30–50% (c) 30% (d) 50%. 23. Critical speed of the ball mill is the speed at which (a) Balls begin to centrifuge with the mill (b) Balls cascade over one another (c) Balls are carried up the sides and fall freely onto

    See Details
  • Ball Mill Design/Power Calculation
    Ball Mill Design/Power Calculation

    Jun 19, 2015 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

    See Details
  • Ball Milling FAQ - Newbie Questions - APC Forum
    Ball Milling FAQ - Newbie Questions - APC Forum

    Sep 02, 2009 Page 1 of 16 - Ball Milling FAQ - posted in Newbie Questions: This is a commonly asked subject, so I thought I would provide an easily accessible central location. This is a simplified guide, and is in no mean meant to be all-inclusive. Do I need a ball mill? In a technical sense, you do not NEED a ball mill, but it's hard to progress too far in the hobby

    See Details
  • MCQs Test on Size Reduction. - Simple Pharmanotes
    MCQs Test on Size Reduction. - Simple Pharmanotes

    Sep 26, 2020 Which statement is TRUE for Ball Mill? If the machine is rotated at low speed the balls collide with each other and no or negligible size reduction takes place. If the machine is rotated at very high speed the balls rotate along the cylinder wall due to centrifugal force and no size reduction takes place

    See Details
  • Experiment Part A: Ball Milling - Blogger
    Experiment Part A: Ball Milling - Blogger

    Dec 17, 2014 Ball milling is a type of grinder used to grind materials into fine powder. Ball mills rotate around a horizontal axis, partially filled with the coarse salt to be ground plus the grinding medium. There are many types of grinding media suitable for use in a ball mill, each material having its own specific properties and advantages

    See Details
  • Studies Show Snags to Mill Optimization | E & MJ
    Studies Show Snags to Mill Optimization | E & MJ

    At Eagle, the ball milling circuit starts with a crushing plant and ends with a 12.7-mm screen. “The ball mill is 3.20 m diameter and 4.88 m long,” the study said. The discharge typically contains “negligible +12.7-mm material.” At the time, “tonnage was 45 metric tons per hour (mt/h), and mill power draw was 709 kW,” the study said

    See Details
  • Quality Grinding Steel Balls & Grinding Media Balls
    Quality Grinding Steel Balls & Grinding Media Balls

    High chrome hot rolling steel balls alloy casting grinding ball for mining. Dia 20-150mm High chrome Cast Iron Balls for cement plant / Mining. High Chrome Cr 1-20 Casting Iron Balls for ball mill and cement plant. Cement Plant use HRC 60-68 Ball Mill Balls , forged grinding media balls. High hardness HRC 60-68 grinding balls Mining / ball mill

    See Details
  • Ball Mill/Grinding Mill/Factory Price
    Ball Mill/Grinding Mill/Factory Price

    2400 3000 Model. 20-80tph Capacity. This size ball mill is suitable for miners who used to use small size ball mill and want to increase production. 4000 5000 Model. 80-200tph Capacity. Large ball mill is for mine owners with sufficient capitals, large mining areas and high production demand. Vary according to demand. $3517

    See Details
  • Ball mills for various applications | Gebr. Pfeiffer
    Ball mills for various applications | Gebr. Pfeiffer

    ground product. 1. Mahlk rper. 2. adjustable discharge slots. Activate the markers for further information. Working principle. Fed into the mill through one or both bearing trunnions, the material is ground by impact and friction from the balls. The ground product is discharged from the mill through discharge slots provided in the mill tube

    See Details
  • viva question about ball mill
    viva question about ball mill

    Oct 21, 2019 viva question about ball mill University of Li ge the charge motion and the power draw of a ball mill; the wear distribution and the wear evolution, i.e. the shape modification, of the shell liner in a ball mill as a function of time and the operating conditions

    See Details
  • 250+ TOP MCQs on Ball Mill and Answers
    250+ TOP MCQs on Ball Mill and Answers

    250+ TOP MCQs on Ball Mill and Answers. Mechanical Operations Multiple Choice Questions on “Ball Mill”. 1. What is the average particle size of ultra-fine grinders? Clarification: The particle averaging 1 to 2 m in size with substantially all particles through a standard 325 mesh screen

    See Details
  • Ball Mill - Mechanical Operations Questions and Answers
    Ball Mill - Mechanical Operations Questions and Answers

    This set of Mechanical Operations Multiple Choice Questions & Answers (MCQs) focuses on “Ball Mill”. 1. What is the average particle size of ultra-fine grinders? Explanation: The particle averaging 1 to 2 m in size with substantially all particles through a standard 325 mesh screen. 2

    See Details
  • 250+ TOP MCQs on Advantages of Ball Mill and Answers
    250+ TOP MCQs on Advantages of Ball Mill and Answers

    Mechanical Operations Multiple Choice Questions on “Advantages Of Ball Mill”. 1. ____ is an open container usually cylindrical with uniform openings. a) Bowel b) Screen c) Magnifier d) Shredder Answer: b Clarification: A screen can be called as an open container usually cylindrical with uniform openings, it is normally made of wire mesh cloth. 2

    See Details
  • 213 questions with answers in BALL MILLING
    213 questions with answers in BALL MILLING

    Dec 04, 2021 I prepared FeCoNiAlMn and FeCoNiAlMn1-xCrx (x=0.2,0.4,0.6, 0.8,1) using Ball mill with 45hrs milling but for increasing the crystallinity of my powder alloy samples I need to heat them in vacuum

    See Details
  • Ball Milling - University of Massachusetts Boston
    Ball Milling - University of Massachusetts Boston

    Planetary ball mills 9 . Vibration Mills 10 . Mixer Mill MM 400 11 Feed material: hard, medium-hard, soft, brittle, elastic, fibrous Material feed size: ≤ 8 mm Final fineness: ~ 5 m Setting of vibrational frequency: digital, 3 - 30 Hz (180 - 1800 min-1)

    See Details
  • Practical 1 : Ball Milling | TF Lab 1
    Practical 1 : Ball Milling | TF Lab 1

    Dec 23, 2013 Practical 1: Title: Ball Milling Objective: To grind the coarse salt to a smaller size by using a ball mill and to obtain the particle size distribution of the initial and the sieved final mixture. Introduction: 'Ball milling is a method used to break down the solids to smaller sizes or into a powder. A

    See Details
  • Compositions that can be ball milled? - Newbie Questions
    Compositions that can be ball milled? - Newbie Questions

    Sep 12, 2009 Compositions that can be ball milled? - posted in Newbie Questions: I've heard some people say that the only pyro comp that is safe to ball mill is black powder. What about KNO3 and sugar? I would love to see a list of binary compounds that can be ball milled without excessive risk. Thanks, Skycastlefish

    See Details
Related Blog
CONTACT US

Are You Looking for A Consultant?