2 Mechanism of Size Reduction Cutting here the material is cut by means of a sharp blade or blades EX Cutter mill Compression in this method the material is crushed between the rollers by application of pressure Ex Roller mill Impact impact occurs when the material is more or less stationary and is hit by an object moving at high speed or when the
10 The size separation of powder is based on the low density of fine particles and high density of the coarse particles In elutriation process the particles are suspended in a moving fluid generally water or air Elutriating tank is used to separate the coarse and fine particles of powder after levigation
3 Introduction Mechanical separation in food processing include two main operations removal of substances or material and their classification Mechanical separation equipment is used extensively in food manufacturing preservation or preparatory operation Mechanical separation are based on differences of density and size/shape of the food
1 Objectives Size separation Importance of size separation Download ppt "Objectives Size separation Importance of size separation Sieve" Similar presentations milling grinding sifting and mixing Principle of equipment work SETTLING TANKS Ch Term 051 Ch 12 T051 Q 16 A cube of volume cm3 is made of material with a
Different type of screening equipment and their application in chemical industry Download as a PDF or view online for free WORKING • In case of a single screen the vibrations are given to the screen to effect the separation of solid particles into two size fractions • In case of vibrating screen generally consists of three decks
9 Processes which depend primarily forces to accomplish the desired separation of components The Mechanism of Size Reduction In the grinding process materials are reduced in size by fracturing them In the process the material is stressed by the action of mechanical moving parts in the grinding machine and Initially the stress is absorbed internally
4 Size reduction is the transfer of objects in this case waste into smaller particles Every process of size reduction helps to increase the specific surface of the particle but there is some information necessary to choose the right aggregate for the size reduction • Physical characteristics of material to be reduced particle size structure hardness
4 Size reduction is the transfer of objects in this case waste into smaller particles Every process of size reduction helps to increase the specific surface of the particle but there is some information necessary to choose the right aggregate for the size reduction • Physical characteristics of material to be reduced particle size structure hardness
3 SIZE SEPARATION Size separation is a unit operation that involves the separation of a mixture of various size particles into two or more portions by means of screening surfaces Size separation is also known as sieving sifting screening This technique is based on physical differences b/w the particles such as size shape and density
2 MECHANISM • Size separation is useful since particles are sorted into categories solely on the basis of size independently of other properties such as density surface etc • It can be used to classify dry or wet powders and generates narrowly classified fractions • While doing this mechanical sieving equipments used works on the principle of agitation
It defines size separation and lists some common applications like quality control and determining particle size distribution It also outlines official standards for powder grades based on the sizes of screens particles can pass through To test efficiency of size reduction equipment or process 4 To optimize process condition such as
Equipment Operation • Size reduction equipment performs satisfactorily when • Feed is of suitable size entering at uniform rate • Product is removed as soon as possible as the particles are of desired size Particle size separation Cyclone Others Sieves Classifiers views • 25 slides Industrial Pharmaceutical Size Reduction
Presentation 2 Free download as Powerpoint Presentation ppt / pptx PDF File pdf Text File txt or view presentation slides online Size separation is a unit operation that separates particles based on physical differences such as size shape and density It works by sieving powders through screens with meshes of specific sizes to separate particles into
PPT protein separation and purification Download as a PDF or view online for free Purification techniques include differential centrifugation to separate components by size and mass differential salt precipitation to separate based on solubility and various types of chromatography including size exclusion ion exchange and affinity
Equipment for Size Reduction • Size reduction equipment is divided into • Crusher • Grinder • Ultrafine grinder • Cutting machine Particle size separation Cyclone Others Sieves Classifiers views • 25 slides Industrial Pharmaceutical Size Reduction
This document discusses separation techniques used to separate materials It describes two main types of separation diffusional separation which separates homogeneous mixtures using processes like distillation or crystallization and mechanical separation which separates heterogeneous mixtures based on physical properties like size shape or density
Particle size Free download as Powerpoint Presentation ppt / pptx PDF File pdf Text File txt or view presentation slides online Particle size separation involves separating a mixture of particles of various sizes into two or more portions based on differences in size Common methods of particle size separation include sieving
1 Objectives Size separation Importance of size separation Download ppt "Objectives Size separation Importance of size separation Sieve" Similar presentations milling grinding sifting and mixing Principle of equipment work SETTLING TANKS Ch Term 051 Ch 12 T051 Q 16 A cube of volume cm3 is made of material with a
4 Based on the nature or physical mechanism of separation various separation processes can be classified into 1 Mechanical separations separations based on size and/or density differences of different components in a mixture for separation of solid from liquid filtration and centrifugation 2 Diffusional separations mass transfer operations separations
Size Separation Free download as PDF File pdf Text File txt or view presentation slides online This slide describes how to size seperation and its mechanism Good for Engineering 1 for Pharmacy undergraduates
3 SIZE SEPARATION Size separation is a unit operation that involves the separation of a mixture of various size particles into two or more portions by means of screening surfaces Size separation is also known as sieving sifting screening This technique is based on physical differences b/w the particles such as size shape and density
