### rittinger's law fine grinding

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###### Modelling the processing of gasifier feed

n = exponent (depends on comminution law) P = power input m ̇= feed mass flow The application of Kick’s, Rittinger’s, and Bond’s laws is limited to a certain range of particle size: Rittinger’s Law <005 mm (fine grinding); Bond’s Law 005-50 mm (transition); and Kick’s Law >50 mm coarse grinding)...

Read More###### A commentary on the Kick, Bond and Rittinger laws of grinding

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...

Read More###### Size Reduction by Abhijit Debnath -

Nov 01, 2018· Application: Rittinger's law gives better results with fine grinding where there is a much greater increase in surface area 253 Bond's Law This law states that energy used for size reduction ,...

Read More###### Size reduction (GIKI) - SlideShare

Oct 10, 2014· – 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 ....

Read More###### Cement Finish Milling (Part 2: Comminution)

Feb 06, 2020· Rittinger’s Law was found to be mainly applicable to fine grinding where the increase in surface area per unit mass of material is large Kick’s Law was found to more closely relate to elastic ....

Read More###### SPEX SamplePrep Technical Note

The final theory of particle reduction is Bond’s Law that states the total work input by the weight of crushed material is inversely proportional to the square root of the diameter of the product particles (Figure 7) Bond’s Law functions best in between the coarse grinding of Bond’s Law and the fine grinding of Rittinger’s Law E √ ....

Read More###### How it Works: Crushers, Grinding Mills and Pulverizers ,

Jun 02, 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: , Hammer mills can be used for coarse crushing or fine grinding, depending on the size and configuration ....

Read More###### Size Reduction by Abhijit Debnath -

Nov 01, 2018· Application: Rittinger's law gives better results with fine grinding where there is a much greater increase in surface area 253 Bond's Law This law states that energy used for size reduction ,...

Read More###### 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...

Read More###### Rittinger - an overview | ScienceDirect Topics

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 ....

Read More###### McGILL UNIVERSITY LIBRARY A STUDY OF CERTAIN PHASES ,

FINE GRINDING DEPOSITED BY THE FACULTY OF GRADUATE STUDIES AND RESEARCH UNIVERSITY M~GILL LIBRARY A Study of Certain Phases of Fine Grinding , Rittinger Law of Crushing (History) • • • • 2 Operating Variables in grinding • • • s ,...

Read More###### Principles of Size Reduction - Solid Foods - Food Science ,

Feb 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 or ....

Read More###### (PDF) Comminution in mineral processing

Rittinger’s law and 2) Kick’s law (Earle, 1983) , Cone crusher comes under fine grinding operation and hence, it is placed at the initial stage of secondary grinding circuit...

Read More###### SIZE REDUCTION - Universiti Teknologi Malaysia

Rittinger’s law – better for fine grinding POWER REQUIRED IN SIZE REDUCTION where Rittinger’s law: , Rittinger’s law and (b) Kick’s law, calculate the power required for the second operation The feed rate is 110 ton/h Solution Mesh Product 1 Dpi av xi1 xi1/Dpi av 4/6...

Read More###### Size reduction equipment - Part I, Fabrizio Sarghini ,

Rittinger assumed that the energy required for size reduction is directly proportional to the change in surface area, and not to the change in length He considered that for the grinding of solids, the energy required should be proportional to the new surface produced, assigning the value of 2 to the power n, and obtaining the Rittinger’s law ....

Read More###### basic chemical engineering Multiple choice Questions and ,

Which 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 None of these View Answer Report Discuss 50-50! Answer: (c) Rittinger's law 282 Shell and leaf filter as compared to plate and frame filter: a...

Read More###### lec38 (20) - Fundamentals of Food Process Engineering Prof ,

Rittinger’s equation tends to apply for fine grinding and Kick’s law for course grinding Bond’s law valid for the intermediate grinding (Refer Slide Time: 21:22) E = 03162W i × 1 X P − 1 X F...

Read More###### 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 the reciprocal of the ....

Read More###### 250+ TOP MCQs on Size Reduction – Grinding Principles and ,

8 Which of the law is used for fine grinding? a) Rittinger’s Law b) Kick’s Law c) Bond’s Law d) Bond’s Law, Rittinger’s Law, and Kick’s Law Answer: a Clarification: Rittinger’s Law is defined as the energy required for reducing the size of the solid particle is directly proportional to the increase in surface area...

Read More###### 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 ....

Read More###### How Material Size Directly Affects Size Reduction Energy ,

Mar 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 size...

Read More###### CHAPTER 11 SIZE REDUCTION - NZIFST

Equation (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) , will vary a great deal from relatively coarse to fine and even to dust As the grinding continues, the coarser particles will ,...

Read More###### Size-reduction process mechanism and evaluation

Rittinger’s law states that the energy required for size reduction is proportional to the change in surface area of the particl Rittinger’s law gives better results with fine grinding where there is a much larger increase in surface area According to Rittinger, the D and d should be calculated as follows:...

Read More###### lec38 (20) - Fundamentals of Food Process Engineering Prof ,

Rittinger’s equation tends to apply for fine grinding and Kick’s law for course grinding Bond’s law valid for the intermediate grinding (Refer Slide Time: 21:22) E = 03162W i × 1 X P − 1 X F...

Read More###### Paper No : 04 Paper Title : Unit Operations in Food ,

the energy requirement per unit mass and K is a constant, known as Rittinger’s constant Rittinger’s law has been found to hold better for fine grinding Kick’s Law is based on the assumption that the energy required should be proportional to the size reduction ratio, ie n = 1 So: 𝑥 =− K 𝑥...

Read More###### The Efficiency of Grinding - Pharmaceutical Engineering

Kick’s law predicts lower energies than the relation proposed by Rittinger The theory, however, demands that the resistance to crushing does not change with particle size The role of flaws present in real materials is not considered with the result that the energy required for fine grinding, when the apparent strength may have greatly risen ....

Read More###### 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...

Read More###### 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...

Read More###### Chapter 12 Comminution Energy and Evaluation in Fine Grinding

Rittinger's law states that the energy required for fracture, E F , is proportional to the new surface produced: E F =C R (S f –S i ), where S i and S f are the initial and final ....

Read More###### Which of the following crushing laws is most accurately ,

4 For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to Solve it, 5 The process by which fine solids is removed from liquids is termed as Solve it, 6 For coarse reduction of hard solids, use Solve it, 7 Which of ,...

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