Rittinger Law Specific Grinding

  • PDF Development of Size Reduction Equations for

    Specific energy vs Rittinger s gr inding law parameter for the data from this study and th ose extracted from Mani et al 2 004 Bi tra et al 2009 and Adapa et al 2011 Figure 8

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  • Comminution Laws Comparison Minerallurgy

    Rittinger s law assumes that the total energy input is transferred to the material being ground to produce new surface This is not true as the fraction of energy actually used in crushing varies according to the type of machine and the particular operating conditions and

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  • Influence of wood pellets properties on their grinding

    09/06/2021· The lab scale disc mill and the application of Von Rittinger s comminution law provide a quick assessment of the relative grindability the ease of grinding of wood pellets Further grinding studies should focus on the grinding behavior of pellets made of

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  • 4 Size reduction UB

    performance of different types of equipment Coarse grinding has RRs below 8 1 whereas in fine grinding ratios can exceed 100 1 Brennan et al 1990 2 Rittinger s law states that the energy required for size reduction is proportional to the change in surface area of the pieces of food instead of a change in dimension described in Kick

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  • Grinding Mills Grinding Laws Technology Trends

    Grinding Laws In spite of a great number of studies in the field of fracture schemes there is no formula known which connects the technical grinding work with grinding results Von Rittinger for d mm with W as grinding work in kJ/kg c as grinding coefficient The specific surface area referring to volume S v and the specific

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  • Effect of Moisture Content on the Grinding Process and

    Grinding is a staple size reduction process to produce food powders in which the powdered form is chemically and microbiologically stable and convenient to use as end products or intermediate products The moisture content of food materials before grinding is a particularly important factor since it determines the materials physical properties and the powder properties such as flowability

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  • Unit Operations in Food Processing R L Earle

    Equation 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 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

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  • rittinger law specific grinding

    Oct 01 2008 · Parboiled rice required longer duration of grinding compared to raw rice consequently specific energy consumption was higher ∼220 kJ/kg All the three classical laws of grinding Kick s Rittinger s and Bond s seemed to be applicable while Rittinger s law showed better suitability than the other two followed by Bond s

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  • rittinger law specific grinding

    rittinger law specific grinding Hard Pressed Café rittinger law specific grinding Mill grinding Wikipedia the free encyclopedia A grinding mill is a unit operation designed to break a solid material into smaller piec Free Quote rittinger law specific grinding ic4medicapsin A commentary on the Kick Bond and Rittinger laws of grinding A

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  • How it Works Crushers Grinding Mills and Pulverizers

    02/06/2017· Rittinger s Law states that the energy required in size reduction is proportional to the new surface created by the particle fragmentation 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

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  • PDF Development of Size Reduction Equations for

    Specific energy vs Rittinger s gr inding law parameter for the data from this study and th ose extracted from Mani et al 2 004 Bi tra et al 2009 and Adapa et al 2011 Figure 8

    Get Price
  • CPE Lesson 15 Empirical laws of Size Reduction

    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 material

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  • A commentary on the Kick Bond and Rittinger laws of grinding

    01/06/1973· Confusion concerning the so called 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 to

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  • Effect of Moisture Content on the Grinding Process and

    Grinding is a staple size reduction process to produce food powders in which the powdered form is chemically and microbiologically stable and convenient to use as end products or intermediate products The moisture content of food materials before grinding is a particularly important factor since it determines the materials physical properties and the powder properties such as flowability

    Get Price
  • rittinger law specific grinding

    27/12/2020· rittinger law specific grinding It has been found experimentally that for the grinding of coarse particles in which the increase in surface area per unit mass is relatively small Kick s Law is a reasonable approximation

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  • CHAPTER 20 SIZE REDUCTION EQUIPMENT FOR SIZE REDUCTION

    • 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 • E = K R 1 1 D p D f • K R

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  • grinding and crushing laws

    • Coarse grinding has RRs below 8 1 • Fine grinding can exceed 100 1 • 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

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  • rittinger s law reduction

    rittinger law specific grinding nrg solutions 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 law

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  • How it Works Crushers Grinding Mills and Pulverizers

    02/06/2017· Rittinger s Law states that the energy required in size reduction is proportional to the new surface created by the particle fragmentation 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

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  • Rittinger and Kick s Laws of Crushing

    08/03/2016· 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 separa­tions

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  • Rittinger Law Specific Grinding

    rittinger law specific grinding Manufacture and sale of industrial crushers rittinger law specific grinding Grinding Mill China 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

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  • rittinger law specific grinding

    Grinding and cutting Unit Operations in Food Processing RL Earle Equation 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 postulates that

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  • CHAPTER 20 SIZE REDUCTION EQUIPMENT FOR SIZE REDUCTION

    • 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 • E = K R 1 1 D p D f • K R

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  • CPE Lesson 15 Empirical laws of Size Reduction

    Rittinger s law Rittinger s assumption was based on the fact that particles do not deform before breaking therefore being infinitely state that the energy required in size reduction is proportional to new surface created and gave the power n a value of 2 thus by integrating equation obtained the so called Rittinger s law

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  • size reduction laws involved in size reduction

    25/10/2016· 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 stator

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  • Influence of wood pellets properties on their grinding

    09/06/2021· The lab scale disc mill and the application of Von Rittinger s comminution law provide a quick assessment of the relative grindability the ease of grinding of wood pellets Further grinding studies should focus on the grinding behavior of pellets made of

    Get Price
  • Rittinger Law Specific Grinding

    Rittinger Law Specific Grinding Rittinger Law Specific Grinding Mar 19 2017 Hydrometallurgists must regret to see Rittingers law disproved for surface exposed is in general a measure of the accessibility of solutions to ore and this rule also ceases to approximate the truth only when the finest sizes are reached If the premises are sound the

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  • rittinger law specific grinding

    rittinger law specific grinding Grinding Mill China 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 surface area is not included in the measured area Bennet

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  • Comminution Laws Comparison Minerallurgy

    Rittinger s law assumes that the total energy input is transferred to the material being ground to produce new surface This is not true as the fraction of energy actually used in crushing varies according to the type of machine and the particular operating conditions and

    Get Price
  • Size Reduction Practices in Food Processing Request PDF

    All the three classical laws of grinding Kick s Rittinger s and Bond s seemed to be applicable while Rittinger s law showed better suitability than the other two followed by Bond s

    Get Price
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