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: (3.4) Where: • is the fraction by weight less than size X of products of fracture
Read On• 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 ...
Read OnRittinger 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 …
Read OnEquation (11.3) 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. (11.3) postulates that the energy required to reduce L for a mass of particles from 10 …
Read OnRittinger'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) …
Read OnAll the three classical models such as Rittinger's, Kick's and Bond's law were found suitable to explain the energy consumption for grinding. Energy consumption increased exponentially with decrease in classifying screen size of hammer mill.
Read OnRittinger 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 .
Read OnA comprehensive research project was undertaken to evaluate the effect of specific energy consumption (Ec) on variations of portland cement fineness measured by the Blaine test and sieve analysis. Amine and glycol-based grinding aids (GA) were incorporated at various concentrations of 0.04, 0.06, and 0.08% of the cement weight. At Ec values lower than around …
Read OnFigure 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 104.5 for the rotor impact mill grinding is larger than 58.6 for the hammer mill grinding (Fig. 5), indicating that the hammer mill used less energy ...
Read OnRittinger's law states that the energy required for ... Models for specific grinding force vs. the specific material removal rate and G-ratio vs. grinding …
Read OnTranscript PROPOSAL FOR A SOLOMONIC SETTLEMENT BETWEENTHE THEORIES OF VON RITTINGER, KICK, AND BOND This paper presents a preliminary analysis of the fundamental relationshipbetween the net energy used and the respective product size throughout theentire range of sizes covered by crmshing and grinding, and an attempt tofind a sensible …
Read Onrange. This study illustrated that Kicks law was applicable in the crushing range (above 1 cm in diameter) . Bond's theory was more suited to the particle size ranges involved in conventional ball and rod mill grinding (5 to 250 mm). Rittinger's law showed more _app1icability to …
Read OnConfusion 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 ...
Read OnGrinding degree is the ratio of the sizes from the grain disposition. There are several definitions for this characteristic value: Grinding degree referring to grain size d 80; Instead of the value of d 80 also d 50 or other grain diameter can be used. Grinding degree referring to specific surface
Read OnRittinger'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 …
Read OnRittinger 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 ...
Read OnRittinger'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 …
Read OnSn = final specific surface area Application: It is most applicable in size reducing brittle ... This theory is used when neither Kick's nor Rittinger's law is applicable. n =2.0 Walker equation becomes Rittinger's theory Used for fine particles < 1 um size. ... •It is rapid in action, and is capable of grinding many
Read OnIn Summary, Kick's law is better for larger particles and Rittinger's for fine grinding, see Figure11.5. Large particles are easier to break than smaller ones as they have more cracks and faults. Often the laws are used in conjunction with empirically given constants: it can be dangerous to use the book values without some test work.
Read OnWhich of the following crushing laws is most accurately applicable to the fine grinding of materials ? A. Bond's crushing law. B. Kick's law. C. Rittinger's law. D.
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