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Mar 08, 2013· calculation of ball mill grinding efficiency dear experts please tell me how to calculate the grinding efficiency of a closed ckt & open ckt ball mill in literatures it is written that the grinding efficiency of ball mill is very less [less than 10%] please expalin in a n excel sheet to calcualte the same thanks sidhant reply
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55 What is the use of pulveriser and name different types of pulverising mills? The pulveriser is used to pulverise the coal in order to increase the surface exposure Pulverised coal enables rapid combustion The different types of pulverising mills are 1 Ball mill 2 Hammer mill 3 Ball and race mill 56
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The key to answering any interview question (whether on this list or not) is to be prepared Interview questions tend to fall into one of three categories: about the company, about your career, and about your skills If you’re prepared to answer questions about these 3 topics, you’ll be able to answer just about any question thrown at you
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Ball-Mill Base with Ventilated Motor-Cover Installed Ball-Mill Base with Ventilated Motor-Cover Removed The Ball-Mill Drive System Looking inside the mill's motor compartment, you can now see the motor, with a small fan and pulley on its shaft That small pulley is connected by a drive belt to a large pulley which is mounted on the unit's drive ,
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Engineering Questions Answers pdf Interview objective , The crushed raw materials are fed in to a ball mill and a little water is added The steel balls in the ball mill pulverized the raw material which form a slurry with water The slurry is passed through storage tanks where the proportioning of compound is adjusted to 3 Chat Online
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Ball mill; Coal mill; Jaw crusher; Vertical mill; , machines used in cement industry; , measurement and instrumentation interview questions; Kumba Q3 iron ore output slips 5 pct | anglo american plc ,
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Ball mill is used for a) Crushing b) Coarse grinding c) Fine grinding d) Attrition
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Ball Mill Interview Questions 15 mill operator interview questions mockquestions interview questions and answer examples and any other content may be used else where on the site we do not claim our questions will be asked in any interview you may have our goal is to create interview questions and answers that will best prepare you for your interview and that means we do not want ,
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Frequently Asked Questions About Planetary Ball Mill 1 Our ball mills always come with a free standard set of balls including 1000 216;6mm balls 200 216;10mm balls and 3 216;20mm balls for EACH 1000ml jar They do the basic job of filling each jar to about 12 of its volume
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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 ,
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Mechanical Operations Online Test - Multiple Choice Questions and Answers,online quiz,online bits,interview questions answers pdf free download for chemical , A tube mill compared to a ball mill produces a coarser product has a higher length/diameter ratio has a higher diameter/length ratio uses much larger balls
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Oct 22, 2020· Ball mill JARS - posted in Newbie Questions: Before you all tell at me about there already being a ball mill thread (or 2 or 3) I dont want to talk about the milk itself I just want to talk about the jars I have seen and heard of people making jars out of large pvc with moderate success, the pvc fails eventually I have seen the rebel jars and know that some people swear by them
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Apr 29, 2019· First, the advantages of ball mill 1) It produces very fine powder (volume less than or equal to 10 microns) 2) Because it can be used in a completely closed form, it is suitable for grinding toxic materials 3) Has a wide range of applications ,
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In one of them I have to design a ball mill, and we have to use a 3m long cylinder of 2m diameter This process is going to be a discontinous process, that means the mill have to be charged with the balls and materials and then after some time it stops and you have to take out the materials and the balls
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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,
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Keywords: Ball mills, grinding circuit, process control I Introduction Grinding in ball mills is an important technological process applied to reduce the size of particles which may have different nature and a wide diversity of physical, mechanical and chemical characteristics Typical examples are the various ores, minerals, limestone, etc
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Aug 06, 2015· These solid balls hit the material and break them Ball milling method is used for carbide metal mixtures and cermet materials to perform blending and to reduce particle size Milling method uses ball mill, rod mill, impact mill, etc to produce powders of required grade and fineness
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Feb 06, 2020· The Mill on the Floss Questions and Answers - Discover the eNotes community of teachers, mentors and students just like you that can answer any question you might have on The Mill ,
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ball mill interview questions Our leading products have crushing equipment, sand making equipment, mobile crusher;The products includes five series: crusher, sand making machine, powder grinding mill, mineral processing equipment and building materials equipment
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Chemical Engineering interview questions and answers - part 5: Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 24 What are the reasons of removal of particles from effluent gas? The main reasons for the removal of particles from effluent gas are: , The advantages of using a ball mill over other conventional methods are as follows: >The mill can ,
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Dec 11, 2020· Questions related to Ball Milling , of ultrasonicator may be for a 5 mins then add the solid powder and ultrasonicate for 10 more minutes and put in the ball mill ,
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Ball Mill Static Problem - posted in Newbie Questions: I am currently constructing a ball mill and I noticed a potential safety issue My design has a pvc drum sitting on top of 4 small caster wheels The drum will have a belt around it which would be turned by a motor Currently, I only have the wheels mounted and I spun the drum I noticed a lot of static was being produced, it was enough to ,
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The crushed raw materials are fed in to a ball mill and a little water is added; The steel balls in the ball mill pulverized the raw material which form a slurry with water; The slurry is passed through storage tanks where the proportioning of compound is adjusted to ensure desired chemical composition; 3
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Sep 05, 2018· ball mill Ball Mill machine is composed by feeding part, discharging part, turning part and driving part (reducer, small driving gear, electric motor and electric control) The quill shaft adopts cast steel part and the liner is detachable The tu,
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Apr 15, 2020· Dal-Tile interview details: 36 interview questions and 33 interview reviews posted anonymously by Dal-Tile interview candidat Best Cities for Jobs 2020 NEW! Jobs Jobs; , Ball Mill Operator Hoist Operator Forklift Driver Interview Anonymous Employee Accepted Offer Positive Experience Easy Interview
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37851+ Engineering interview questions and answers for freshers and experienced Engineering technical job interview questions of various companies and by job positions 6434 , Application Ball Mill - Cement Mill 1 1880 I have a Control VAlve having size of 2 "Only the known parameter is Pressure drop Its 2 Kg
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