
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

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 yura-project. 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 . Read More .

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

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

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 .

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.

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.

were proposed by Rittinger (1867), Kick (1885) and Bond (1952), known as the three Bond (1952) proposed the ‘Third Law’ of grinding. The Third Law states that the net energy required in comminution is propor- between the product P80 and the net specific grinding energy for all LIMS tail (non magnetic) and LIMS concentrate

Oct 13, 2018· 1. Kick's Law 2. Rittinger's Law 3. Bond's Law Watch this full video to learn this b.pharma subject online, which comes under unit operation in pharmaceutical engineering. Other Topics in Size

Rittinger law specific grinding minemining. Grinding and cutting Unit Operations in Food Processing RL Earle Equation (113) is known as Rittinger's LawAs the specific surface of a particle the surface area per unit mass is proportional to 1/L eqn (113) postulates that . Live Chat; rittinger law specific grinding

Feb 03, 2018· [HINDI] CAVITATION NET POSITIVE SUCTION HEAD (NPSH)~PROBLEMS IN PUMP, TURBINE & HYDRAULIC MACHINES Duration: 8:31. Unacademy Studios Bridge Recommended for you

Fred Chester Bond (June 10, 1899 January 23, 1977) was an American mining engineer.A graduate and former professor of the Colorado School of Mines, he worked in the mining equipment and ore milling equipment business of Allis-Chalmers from 1930 to 1964.

Comminution is the reduction of solid materials from one average particle size to a smaller average particle size, by crushing, grinding, cutting, vibrating, or other processes. In geology, it occurs naturally during faulting in the upper part of the Earth's crust.

rittinger law specific grinding . specific for grinding . rittinger law specific grinding: Nola. Grinding and cutting Unit Operations in Food Processing RL Earle . Equation (113) is known as Rittinger's Law As the specific surface of a particle, the surface . Get Price; vertical grinding mill specific power SKD Grinding

•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)

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

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.

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

Oct 25, 2016· size reduction,laws involved in size reduction ,application & mills 1. SIZE REDUCTION Size reduction is the process of reducing the particle size of a substance to a finer state of subdivision to smaller pieces to coarse particles or to powder. Size reduction process is also referred to as comminution and grinding.

Calculations bond s law for crushing s equation may be usedfacilitate the calculation of specific grinding energy content crushing laws rittinger law kick get price unit operations in food processing r l earle grinding and cutting reduce th. Read More; Bonds law for crushing mills.

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 for d < 0.05 mm = (−) with W as grinding work in kJ/kg, c as grinding coefficient, d A as grain size of the source material and d E as grain size of the ground material. A reliable value for the grain sizes d A and d E is d 80. This value signifies that 80% (mass) of the solid matter has a smaller grain size.

Calculations bond s law for crushing s equation may be usedfacilitate the calculation of specific grinding energy content crushing laws rittinger law kick get price unit operations in food processing r l earle grinding and cutting reduce th. Read More; Bonds law for crushing mills.

Grinding and cutting reduce the size of solid materials by mechanical action, dividing them (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. Rittinger's Law fits the experimental data better.

•A crushing law proposed by Rittinger in 1867 states that the work required in crushing is proportional to the new surface created • This law, which is really no more than a hypothesis is equivalent to the statement that the crushing efficiency is constant and, for a given machine and feed material is independent of the sizes of feed and

Several grinding laws have been proposed to predict the energy cost of a milling process. The best known are the ones by Von Rittinger, Kick, and Bond. Initially developed for the mineral industry, each of these methods expresses the energy as a function of the variation of the fineness of the product.

Nov 10, 2015· 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

Oct 25, 2016· size reduction,laws involved in size reduction ,application & mills 1. SIZE REDUCTION Size reduction is the process of reducing the particle size of a substance to a finer state of subdivision to smaller pieces to coarse particles or to powder. Size reduction process is also referred to as comminution and grinding.

Predicting the overall specific energy requirement of . 2.2. Specific energy determination for comminution circuits. The total specific energy (W T) to reduce in size primary crusher product to final product is given by (3) W T = W a W b W c W h W s where. W a = specific energy to grind coarser particles in tumbling mills.

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

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.

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

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.

15.1 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.
Copyright © 2004-2020 by Fruitful Machinery Technology Co. LTD All rights reserved.Sitemap