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The document discusses various methods of size reduction or comminution. It describes different types of mills used for size reduction including hammer mill, ball mill, colloid mill, and fluid energy mill. The objectives of size reduction are to reduce particle size, increase surface area, improve handling and flow of powders.
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Industrial Pharmaceutical Size Reduction Faculty of Pharmacy OCTOBER 6 University. SIZE REDUCTION • Process of reducing larger size solid unit mass to smaller size unit masses by mech • Rate depend on the starting of the material its orientation & residence time in the mill . OBJECTIVES : 1- susp. Or to facilitate mix. Of powder . 2- …
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Title: BALL MILL 1 BALL MILL 2 PRINCIPLE Size reduction is done by impact as the balls drop from near the top of the shell 3 CONSTRUCTION 4 BALLS 5 DESCRIPTION 6 WORKING 7 ... Many of them are also animated. And they're ready for you to use in your PowerPoint presentations the moment you need them. – PowerPoint PPT presentation.
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It begins with an introduction to size reduction processes like crushing, grinding, and milling. It then covers topics like grinding circuit design, size reduction equipment, and sample preparation/analysis tools.
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During their particle size reduction in a mill, dust is produced which may have an effect on the operator. In such cases, the enclosed mills may be used to avoid dust. 9. Ratio of feed size to product size : To get a fine powder in a mill it is required that a fairly small feed size should be used. Hence it is necessary to carry out the size ...
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Fluid Energy Mill Ultra-fine particle size production Feed p. size:5OO microns Product p. size:5-30 micons (Ultra-fine) Grinding medium: superheated steam or compressed air Mechanism of size reduction: attrition and impaction Built in classifiier Advantages: *Suitable for thermo-labile substances because of the effect of the …
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Particles are carried out to outlet and the coarse particle undergo recirculation. Uses: • Fluid energy mill is used to reduce the particle size(10-325mesh) of most of the drugs such as antibiotics and vitamins. • Ultrafine grinding can be achieved moderately hard material can be processed for size reduction.
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It describes various types of mills used for size reduction like ball mills, hammer mills, fluid energy mills. It outlines laws governing energy requirements for size reduction. ... part of our assignment in which we are told to pick one of the pharmaceutical engineering topics and make a paperwork + presentation out of it.
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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 …
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During their particle size reduction in a mill dust is produced which may have an effect on the operator .In such cases, the enclosed mills may be used to avoid dust. 9. Ratio of feed size to …
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3. INTRODUCTION Size reduction is a process of reducing large solid unit masses, coarse particles or fine particles. Size reduction may be achieved by two methods: 1] Precipitation 2] Mechanical process 1] Precipitation method: Substance is dissolve in appropriate solvent. 2] Mechanical process: Mechanical force is introduce by …
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2. Modes of size reduction: Cutting: The material is cut by means of a sharp blades Eg : cutter mill Compression: In this mode material is crushed between roller by the application of pressure Eg : roller mill Impact: This involve the operation of hammer/bars at high speeds. When a lump of material strikes the rotating hammers, the …
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Industrial Pharmaceutical Size Reduction. Industrial Pharmaceutical Size Reduction. Faculty of Pharmacy OCTOBER 6 University. SIZE REDUCTION. Process of reducing larger size solid unit …
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SIZE REDUCTION.pptx - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. This document discusses size reduction processes and equipment. It covers four main methods for reducing particle size: compression, impact, attrition, and cutting. Common size reduction machines are …
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This document discusses size reduction processes and equipment. It covers four main methods for reducing particle size: compression, impact, attrition, and cutting. Common …
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9. Feed rate:With a high feed rate,less size reduction is effected since in this case the material is in the mill for a shorter time. Properties of the feed material:With a hard material,a smaller size reduction is achieved Level of the material in the mill:A low level of material in the mill results into a reduction in the power consumption.if the level …
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The document discusses size reduction, which is the process of decreasing the size of objects using external forces, it outlines various size reduction mechanisms, factors that affect the process, and common …
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Application of size separation • To prepare granules of desired size to ensure good flow ability. • To separate undesirable particles. • To measure particle size and size distribution. • To know the efficiency of size reduction equipment. • To get uniform dosage form. • Mono-size particles undergoes less segregation.
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Size Reduction - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. Size reduction is a process that …
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Particle size reduction Fluid energy mill or jet mill Air classifier mill Others Crusher Grinder. Particle size separation Cyclone Others Sieves Classifiers 3.31k views • 25 slides
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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 …
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Size Reduction Lecture - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. The document discusses size reduction, which is the process of reducing the dimensions of solid substances into smaller particles or changing the form of a liquid or solid substance. It covers various factors that …
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