about grinders

1. GRINDERS
Presented by : Mohit Kumar Rayatasingh
Branch : Chemical Department
Roll No. : 1613351013
2-Mar-18

2. LIST OF CONTENTS :
 Introduction to the Grinders. ………1
 Types of Grinders. ………2
 What are GRINDERS?? ………3
 List of Grinders (images). .……..4
 Applications. .……...7
 Advantages and Disadvantages. .….......8
 Summary. .……...9
 References ………10
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3. INTRODUCTION TO GRINDERS
 A grinding machine, often shortened to grinder.
 Grinder is an size reduction equipment.
 Grinders are the machine which reduces crushed feed into powder.
 It yields a product that might passes the 40 mesh screen.
 A fine grinder yield a product most of which would pass a 200
mesh screen.
 Basic types of grinders are:- (i) Fine grinders (ii)Ultrafine grinders
 The factors to be selected for size reduction are:- hardness,
stickness, explosive nature, moisture, specific gravity and
mechanical structure.
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4. TYPES OF GRINDERS
 SIZE REDUCTION EQUIPMENTS
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Grinders
(Intermediate and fine)
Ultrafine Grinders
(Very fine)
(a) Hammer mills, Impacters (a) Hammer mills with internal
clarification
(b) Rolling compression mills
i. Ball mills
ii. Rolling mills
(b) Fluid energy mills
(c) Attrition mills (c) Agitated mills
(d) Revolving mills
i. Rod mills
ii. Ball mills, Pebble mills
iii. Tube mills

5. WHAT ARE GRINDERS??
 Grinders are the equipment used to reduce the size of the particles.
 They make coarse size particles into powder form.
 A grinder take the product of crusher as the feed(i.e. coarse
particle as feed).
 Grinders are very useful for making the powdry materials.
 There are many types of grinders but the two basic types are :-
 (i) fine grinders (ii) ultrafine grinders
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6. DIFFERENT TYPES OF GRINDERS (IMAGES)
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9. APPLICATIONS
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