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rittinger law specific grinding

rittinger law specific grinding

rittinger law specific grinding
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rittinger law specific grinding Rittinger Law Specific Crusher rittinger law of grinding rittinger law of grinding size reductionlaws involved in size reductio

rittinger law specific grinding

  • rittinger law specific grinding

    Rittinger Law Specific Crusher rittinger law of grinding rittinger law of grinding size reductionlaws involved in size reduction Oct 25 2016 Rittingers law gives better results with fine grinding where there is a much larger increase in surface area Bonds law is intermediate between these two A crushing law proposed by Rittinger 226 The specific energy consumed in grinding Rittinger's law is applicable mainly to that part of the process where new surface is being created and holds most accurately for fine grinding where the increase in surface per unit mass of material is large Kick's law, more closely relates to the energy required to effect elasticRittinger an overview | ScienceDirect TopicsRITTINGER LAW SPECIFIC GRINDING equation 112 is a statement of kick''s lawit implies that the specific energy required to crush a material,grinding,cutting,rittinger''s law, Inquire Now; rittinger law specific grinding hotelsignaturegrinding stone pedal r ittinger law of grinding

  • rittinger law specific grinding 4chefspl

    rittinger law specific grinding rhconstruction1 rittinger law specific grinding sethhukamchand rittinger law specific grinding Grinding Mill the production of fresh surface during the grinding, microns Also, a certain amount of very fine material is lost during the grinding and sieving operations, and this Get PriceJun 01, 1973· Confusion concerning the socalled general law of grinding proposed by Walker et al is removed when it is realised that two forms of the law exist, quite different in physical meaning The Kick and Rittinger laws are special cases of one form, and Bonds law is a special case of the other Thus it is possible for Rittinger's and Bond's laws toA commentary on the Kick, Bond and Rittinger laws of151 Rittinger’s law Rittinger’s law has been found to hold better for fine grinding, where a large increase in surface results It suggests that the energy required is proportional to the increase in surface area per unit mass The Bond Work Index is material specific and is obtained from laboratory crushing tests on the feed materialCPE: Lesson 15 Empirical laws of Size Reduction

  • Rock Crushing Theory and Formula using Kick & Rittinger's Law

    Mar 11, 2016· Rittinger’s theory and law of the energy expended in crushing of rock is that the work of crushing is proportional to the reduction in diameter; or, as I have more fully expressed it: “The work done in crushing is proportional to the surface exposed by the operation; or, better expressed for this purpose, the work done on a given mass of rock is proportional to thelaw of Kick The slope of cumulative curve varies from m = 0 to m 01 the range of coarse grinding is the range of Bond's theory, (rn = — 05) and the range of fine grinding is the range of Rittinger's theory ( m = — 10 ) the range of fine grinding from m = —1 to — 3, — the range of approaching grinding limit m —3 torn — coEnergy requirements in size reduction of solidsConfusion concerning the socalled general law of grinding proposed by Walker et al is removed when it is realised that two forms of the law exist, quite different in physical meaning The Kick and Rittinger laws are special cases of one form, and Bonds law is a special case of the otherA commentary on the Kick, Bond and Rittinger laws of grinding

  • What is rittinger's law? psichologyanswers

    In which process the rittinger law is applicable? Neither of these two laws permits an accurate calculation of the energy requirements Rittinger's law is applicable mainly to that part of the process where new surface is being created and holds most accurately for fine grinding where the increase in surface per unit mass of material is largeEquation (113) is known as Rittinger's Law As the specific surface of a particle, the surface area per unit mass, is proportional to 1/L, eqn (113) postulates that the energy required to reduce L for a mass of particles from 10 cm to 5 cm would be the same as that required to reduce, for example, the same mass of 5 mm particles down to 47Unit Operations in Food Processing R L EarleIn the grinding process, materials are reduced in size by fracturing them In the process, the material is stressed by the A Rittinger's Law (2) As the specific surface of a particle (the surface area per unit mass) is proportional to 1/L, equation (2) postulates that the Rittinger's Law fits the experimental data better 3) Bond hasUnit OperatiOn Size Reduction cengtueduiq

  • CPE: Lesson 15 Empirical laws of Size Reduction

    151 Rittinger’s law Rittinger’s law has been found to hold better for fine grinding, where a large increase in surface results It suggests that the energy required is proportional to the increase in surface area per unit mass The Bond Work Index is material specific and is obtained from laboratory crushing tests on the feed materialEnergy requirements in size reduction of solids · the range of crushing is the range of basic law of Kick The slope of cumulative curve varies from m = 0 to m 01 the range of coarse grinding is the range of Bond''s theory, (rn = — 05) and the range of fine grinding is the range of Rittingergrinding and crushing lawslaw of Kick The slope of cumulative curve varies from m = 0 to m 01 the range of coarse grinding is the range of Bond's theory, (rn = — 05) and the range of fine grinding is the range of Rittinger's theory ( m = — 10 ) the range of fine grinding from m = —1 to — 3, — the range of approaching grindingEnergy requirements in size reduction of solids

  • Influence of wood pellets properties on their grinding

    Jun 09, 2021· The labscale disc mill and the application of Von Rittinger’s comminution law provide a quick assessment of the relative grindability (ie, the ease of grinding) of wood pellets Further grinding studies should focus on the grinding behavior of pellets made ofOct 25, 2016· However,equations Rittinger’s law and Bond’s law were developed from studies of hard materials (coal and limestone) and deviation from predicted results is likely with many foods 15 Basic parts of mill • Feed chute/hopper, which delivers the material • Grinding mechanism usually consisting of a rotor and statorsize reduction,laws involved in size reductionGRINDING LAWS The three laws of Rittinger, Kick and Bond can all be derived from the follow ing relationship, proposed by Charles (1957), between energy consumed and mate rial size C51 : &=kg Yn Setting the exponent n to 1, 11 or 2 upon integration defines the laws of Kick, Bond and Rittinger(PDF) Comminution energetics part III : Bond's law and

  • How it Works: Crushers, Grinding Mills and Pulverizers

    Jun 02, 2017· The equation for Rittinger’s Law can be written as: E = K R f c (1/L 2 – 1/L 1) Where: E=Energy, K R =Rittinger’s Constant, f c =crushing strength of the material, L 1 =initial length, and L 2 =reduced length Kick’s Law states that the energy is proportional to the size reduction ratioRelationships between comminution energy and product size for a magnetite ore [4] where E is the net specific energy; x f and x p are the feed and product size indices, respectively, and K3 is a constant Hukki (1962) evaluated these energysize relationshipsRelationships between comminution J energy and productComminution is the reduction of solid materials from one average particle size to a smaller average particle size, by crushing, grinding, cutting, vibrating, or other processes In geology, it occurs naturally during faulting in the upper part of the Earth's crust In industry, it is an important unit operation in mineral processing, ceramics, electronics, and other fields, accomplished withComminution Wikipedia

  • What is particle size reduction? | EveryThingWhat

    It may not be well known, but there are three physical laws that describe the energy required for size reduction They are the Bond's Law, Rittinger's Law, and Kick's Law Rittinger's Law — The energy required for reduction in particle size of a solid is directly proportional to the increase in surface areaIn which process the rittinger law is applicable? Neither of these two laws permits an accurate calculation of the energy requirements Rittinger's law is applicable mainly to that part of the process where new surface is being created and holds most accurately for fine grinding where the increase in surface per unit mass of material is largeWhat is rittinger's law? psichologyanswers151 Rittinger’s law Rittinger’s law has been found to hold better for fine grinding, where a large increase in surface results It suggests that the energy required is proportional to the increase in surface area per unit mass The Bond Work Index is material specific and is obtained from laboratory crushing tests on the feed materialCPE: Lesson 15 Empirical laws of Size Reduction Indian

  • Rittinger and Kick's Laws of Crushing Mineral Processing &

    Mar 08, 2016· Rittinger and Kick’s Laws of Crushing I happen to be one of those who believe that Rittinger probably meant what he said when he wrote what Stadler has quoted, “the increase of the surfaces exposed is directly proportional to the force required for reducing” “and therefore also to the work absorbed in effecting the separa­tionsEnergy requirements in size reduction of solids · the range of crushing is the range of basic law of Kick The slope of cumulative curve varies from m = 0 to m 01 the range of coarse grinding is the range of Bond''s theory, (rn = — 05) and the range of fine grinding is the range of Rittingergrinding and crushing lawsJun 02, 2017· The equation for Rittinger’s Law can be written as: E = K R f c (1/L 2 – 1/L 1) Where: E=Energy, K R =Rittinger’s Constant, f c =crushing strength of the material, L 1 =initial length, and L 2 =reduced length Kick’s Law states that the energy is proportional to the size reduction ratioHow it Works: Crushers, Grinding Mills and Pulverizers GlobalSpec

  • Lecture 3 Process Engineering of Size Reduction | Mill (Grinding

    Rittinger’s law • Rittinger’s Law says that the specific energy (E) of grinding is directly proportional to the new surface area produced • The energy surface area balance of Rittinger’s law in terms of particle sizes is: (34) Where: • is the fraction by weight less than size X of products of fractureFeb 21, 2018· Determination of energy required in size reduction is generally done using either Kick’s law or Rittinger’s law Kicks’s law is used for coarse grinding when the size ratio of original material to end materials is 8:1 Bond’s law and Retinger’s law are used for intermediate and fine grinding respectively, where ratios approach orPrinciples of Size Reduction Food Science Toolboxrittinger law specific grinding nrgsolutions Rittinger Law Grinding Específico Rittinger Law Grinding Específico Comminution Wikipedia Comminution is the reduction of solid materials from one average particle size to a smaller average particle size, by crushing, grinding, Rittinger''s lawrittinger s law reduction

  • CHAPTER 20: SIZE REDUCTION – EQUIPMENT FOR SIZE

    • Grinding of coarse particles in which the increase in surface area per unit mass is relatively small, Kick's Law is a reasonable approximation • Rittinger’s law – States that the energy required for size reduction is proportional to the change in surface area of the pieces of food •Based on the grinding laws, previous studies suggested that Kick's law, Rittinger's law, and Bond's law are suitable for coarse grinding, fine grinding, and intermediate articles, respectively (8Grinding characteristics and batter quality of rice in differentMar 25, 2015· Rittinger’s Law — The energy required for reduction in particle size of a solid is directly proportional to the increase in surface area E = K R f c (1/L 2 – 1/L 1 ) Kick’s Law — The amount of energy required to crush a given quantity of material to a specified fraction of its original size is the same, regardless of the original sizeHow Material Size Directly Affects Size Reduction Energy

  • SizeReductionHeatTransferAnaChemEditeddocx MRII 2nd

    Rittinger’s Law The average diameter of sphalerite is 1000 microns, the ration of specific surfaces is 4 The critical speed of a ball mill with 12 in diameter, grinding balls diameter of ½ in 80 The operating speed of a ball mill should beNov 10, 2016· Let us apply these ideas to the derivation of an equation for the rate of grinding in a mill It follows that if, as appears reasonable, the change of specific surface S cm²/cm³, within a mill depends upon the diameter of the mill, upon the ball diameter and upon the mean diameter of the particle, D, d and b respectively, upon the density of the balls and the pulp, q and σ respectively, onGrinding Process Mineral Processing & MetallurgyMar 12, 2018· Figure 7 shows Rittinger’s comminution law fitting to the data of three feed sizes and nineteen product sizes and corresponding SECs from rotor impact mill grinding The Rittinger constant of 1045 for the rotor impact mill grinding is larger than 586 for the hammer mill grinding (Fig 5), indicating that the hammer mill used less energyEnergy consumption of twostage fine grinding of Douglasfir wood | Journal of Wood Science