•To increase the specific surface area •To produce particles of certain size/shape ... Rittinger [s law, b)Kicks law and c)Bonds Law 20. Predicting Energy Requirements Rittinger: C R ... •Use wet grinding (good heat transfer, liquid may serve a heat sink)

The first of these laws was Rittinger's Law, which which other theories are built. Original document - English PDF kb - The Third. In many cases, one theory forms the foundation upon Purpose of your business plan for acquiring hypothesis about the world around us. The product of the average pressure or rock resistance test specimen away from ...

Energy requirements in size reduction of solids * L G. Reddy INTRODUCTION ... specific surface production are obtained by crush- ... fine grinding is the range of Rittinger's theory ( m = — 1.0 ). - the range of fine grinding from m = —1 to — 3,

The son of poor parents, Peter von Rittinger attended high school in Leipnik (Lipník nad Bečvou, Moravia) and, in difficult circumstances, studied at the Faculty of Philosophy and the Faculty of Law of University of Olomouc.After completion of legal studies, von Rittinger studied in the Montanist box at the Mining and Forestry Academy in Schemnitz (Banská Štiavnica, Slovakia).

Grindability of Quartz in Stirred Media Mill. ... Rittinger-index and the lower limit size of Rittinger law are studied. ... the laboratory specific grinding work results were compared with those ...

Rittinger (1867), Kick (1885) and Bond (1952) all proposed empirical laws to estimate the specific energy requirement for accomplishing a given extent of size reduction expressed in terms of the initial and final particle size (length dimension) and an empirical constant.

It is for this reason that Rittinger's law, even though lacking a sound theoretical basis, is widely accepted as a basis for the calculation of the performance of such machines. Let us apply these ideas to the derivation of an equation for the rate of grinding in a mill.

rittinger law specific grinding. ... A tremendous amount of energy is consumed during crushing and grinding, ... Bond and Rittinger laws of grinding. View this project. crushing and gruding . Crushing and Grinding Calculations Fred C. Bond Google Books . Get Textbooks on Google Play. Rent and save from the world's largest eBookstore.

rittinger law specific grinding - mayukhportfolio.co.in. grinding. The Third Law states that the net energy required in comminution is propor- tional to the ... 19 May 2014 ... laws of crushing and grinding…

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, Eq 22 is the link that joins the classical 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.

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 .

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 large.

Relationships 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 energy-size relationships

Ponder Technology, 7 (1973) 315-317 Elsevier Sequoia S A, Lausanne - Printed to The Netherlands A Commentary on the Kick, Bond and Rittinger Laws of Grinding L. G. AUSTIN Department of Material Sciences, The Pennsylcanta State University, University Park, Pa 16802 (U S A ) (Received November 8, 1972) 315 Summary Confusion concerning the so-called general lass of grinding proposed by Walker …

Grinding laws namely Kick's, Rittinger's and Bond's law were applied. The grinding constants (K-K, K-R, W-I) for different laws reflected the dependency on grinding duration.

Von Rittinger theory adapted to wood chip and. ... suggest the applicability of Von Rittinger's law to predict the energy ... A trade-off was noted between specific grinding energy requirement and ...

It is not possible to estimate accurately the power requirement of crushing and grinding equipment to effect the size reduction of a given material, but a number of empirical laws have been put forward e.g., Rittinger's law, Kick's law and Bond's law.

FM 306: SIZE REDUCTION AND SIEVING OBJECTIVE •To grind the given limestone material to a smaller size using a ball mill and to obtain the size distribution of the initial and the final mixture by sieving. •To estimate the energy required for the grinding operation. •To analyze the results using the available theories. INTRODUCTION

Dec 12, 2017· Many BF grinding process parameters can affect flour powder characteristics, including the specific grinding method, machinery, as well as the hardness and the cultivar of BFs. ... Rittinger's law, Kick's law, and Bond's law constants as well as the Bond Work Index were calculated using the following Eq. . Rittinger's law.

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 (8 ...

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11 Crushing and classification Estimates vary, but it is generally accepted that of all the energy used in the World something like between 1 and 10% is in comminution, i.e. the processes of crushing, grinding, milling, micronising, etc. Changing the size of the particles by …

Equation (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 cm to 5 cm would be the same as that required to reduce, for example, the same mass of 5 mm particles down to 4.7 ...

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.)

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. For the size reduction of fine powders, on the other hand, in which large areas of new surface are being created, Rittinger's Law fits

where E is the net specific energy; x f and x p are the feed and product size indices, respectively, and K 2 is a constant. Bond (1952) proposed the 'Third Law' of grinding. The Third Law states that the net energy required in comminution is proportional to the total length of …

Peter Ritter von Rittinger or Peter von Rittinger (see styling variants at Ritter) (23 January 1811 Nový Jičín / Neutitschein – 7 December 1872 Vienna) was an Austrian Montanist and pioneer of mineral processing.. Life. The son of poor parents, Peter von Rittinger attended high school in Leipnik (Lipník nad Bečvou, Moravia) and, in difficult circumstances, studied at the Faculty of ...

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