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 10cm to 5cm would be the same as that required to reduce for example the same mass of 5mm particles down to This is a very much smaller reduction in terms of of energy per unit mass for the smaller particles than that predicted by Kick s Law
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
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
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
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
· The three grinding equations of Kick Rittinger and Bond have built in fundamental mechanisms but their model constants depend on experimental data Our previous grinding tests using knife mill showed that a linearized form of Rittinger equation predicted the specific energy input to the grinder more accurately than Bond s and Kick s equation did These tests were done on wood chips
Rittinger Law Specific Grinding e chalcomx The specific grinding energy was calculated using Bond s law considering dry grinding suggests the validity of the All the three classical models such as ball mill mechanics arunachallawin Ball MillRETSCHpowerful grinding and homogenization A ball mill can grind and homogenize small sample volumes down to the nano range Grinding
• 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 Rittinger s constant • For the size reduction of fine
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 s law E KR 1 d2 1 d1 4 2 where KR Rittinger s constant 3 Bond s law is used to calculate the energy required for size reduction from E W 100 d2
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 elastic deformation before fracture occurs and is more accurate than Rittinger s law for coarse crushing where the amount of surface
• 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
rittinger law specific grinding Grinding kinetics Grinding characteristics Particle size Won Yoon Rittingers law has been found to hold better for fine grinding ´ anovas et al where a large increase in surface results Especially related to the grinding kinetics to estimate the particle size and the amount of flours with specific particle size
Si = initial specific surface area Sn = final specific surface area Application It is most applicable in size reducing brittle materials undergoing fine milling Bond s theory •Bond s theory states that the energy used in crack propagation is proportional to the new crack length produced •where E = energy required f or size reduction • • • KB = Bond s work index di = initial
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
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 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
• Rittinger s law gives better results with fine grinding where there is a much larger increase in surface area • Bond s law is intermediate between these two 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
· • Rittinger s law gives better results with fine grinding where there is a much larger increase in surface area • Bond s law is intermediate between these two 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
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
Rittinger Law Specific Grinding is there a material constant which w is specific energy consumption grinding product size bond s law has been widely used in practice case with similar parameters in the laws of rittinger Get Price bab 2 size reduction mill grinding industries or of small pieces by grinding equipment specific product requirement solids using rittinger s law 1 2 Get
1973 06 01· 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
· 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 size
01/10/2021· The popular models are those of Rittinger [ 4 ] Bond [ 5] and Kick [ 6 ] While the Bond and Kick models are mostly employed for coarse and intermediate size grinding the Rittinger model is better suited for fine comminution [ 7 ]
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 mm This is a very much smaller reduction in terms of energy per unit mass for the smaller particles than that predicted by Kick s Law
08/03/2021· 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
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 The italics are now mine instead of Rittinger s or Stadler s Our difficulty lies in
rittinger law specific grinding Laws Of Crushing And Grinding Sep 04 2021 Three laws of comminution or size reduction such as Kick s law Rittinger s law and Bond s law are defined and its objectives in Get Price rittinger law specific grinding laws of crushing and grinding The law specifically grinding Rittinger Crushing and grinding Minerals
Bond 1952 proposed the Third Law of grinding The Third Law states that the net energy required in comminution is propor tional to the total length of the new cracks formed The resulting equation is Relationships between comminution energy and product size for a magnetite ore by A Jankovic H Dundar† and R Mehta‡ Synopsis An extensive laboratory grinding study was carried
· They are new while the particles resulting are of the same form and specific gravity as they were before separation; and if put together accurately the dimensions of the mass would be the same Rittinger s Law Rittinger s theory is the law of the cracks It is well explained in an article by E A Hersam in the Mining and Scientific Press an abstract of which is given in the third volume of Richard s Ore
where KR is called Rittinger s constant which on integration gives = Ë B Ö 5 Å − 5 Å 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 energy required to reduce L for a mass of particles from 10 cm
Rittinger s lawRittinger 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 Bond Work Index is material specific and is obtained from laboratory crushing tests on the feed material
Assuming that these values are constant K is a constant Equation is known as Rittinger s law Due to the inaccuracy of the assumptions on which it is based and the difficulty in determining its parameters Rittinger s law is only approximate A different expression for energy requirement of size reduction has been proposed by Kick
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
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
2021 03 25· 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 size
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