rittinger law specific grinding

  • Comminution of Dry Lignocellulosic Biomass Part II

    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.

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  • Grinding characteristics and batter quality of rice in

    Oct 01 2008 · Parboiled rice required longer duration of grinding compared to raw rice consequently specific energy consumption was higher (∼220 kJ/kg). 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 law.

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  • Size reduction_Pharmaceutical engineering

    Jun 03 2014 · It implies that the specific energy required to crush a material for example from 10 cm down to 5 cm is the same as the energy required to crush the same material from 5 mm to 2.5 mm. Rittinger s law Rittinger assumed that the energy required for size reduction is directly proportional to the change in surface area.

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  • Grinding and comminutionDelft Solids Solutions

    •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)

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  • ComminutionWikipedia

    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.

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  • Grinding characteristics and batter quality of rice in

    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.

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  • Laws of Size ReductionTheories of Size Reduction Hindi

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    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

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  • Unit OperatiOn Size Reductionكلية الهندسة

    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

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  • Bioengineering Free Full-Text Comminution of Dry

    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.

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  • rittinger law crushercatalytec

    crushing energy consumption coal kick bond index bonds crushing law and work crushing and grinding calculations bond Bond s More Info Unit Operations in Food ProcessingR L Earle. If the density of the material is 1450 kg m and the total weight is 360 kg calculate the equivalent diameter Kick s Law (b) Rittinger s Law (c) Bond s .

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  • Chemical Engineering Stop Rittinger s and Kick s laws

    May 14 2010 · Rittinger s and Kick s laws Rittinger s law states that work required in crushing is proportional to the new surface created. In other words crushing efficiency is constant and for a given machine and feed material is independent of the sizes of feed and product. Rittinger s law is written as-

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  • Breakthrough in Clinker GrindingConcrete Sustainability

    Breakthrough in Clinker Grinding Richard P. Bohan John P. Kline This paper was reviewed by and derived formulas and indices. The standard work indices of Kick Bond and Von Rittinger each work within specific particle size ranges based on empirically derived factors. Griffith s Law also requires a characteristic length scale to define

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  • ComminutionWikipedia

    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. In industry it is an important unit operation in mineral processing ceramics electronics and other fields accomplished with

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  • Energy requirements in size reduction of solids

    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

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  • MODELING THE SPECIFIC GRINDING ENERGY AND BALL

    2 MODELLING THE SPECIFIC GRINDING ENERGY AND BALL-MILL SCALEUP Ball-mill scale up (Bond s Law)Data zBond work index w i zFeed D f and product d size (both 80 cumulative passing) Result The specific grinding energy w Mill power draw P = wT where T the mill capacity Mill dimensions (from Tables or charts)

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  • bonds crushing law and work indexshibang-china

    Coal mining processing plant in Nigeria. This coal mining project is an open pit mine located in Nigeria announced by mining companyWestern Goldfieldsthat it has discovered 62 400 000 tonnes of proven reserves of coal deposits worth US 1.2 billion which could be used for the generation of electric power

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  • SIZE REDUCTIONUniversiti Teknologi Malaysia

    Rittinger s lawbetter for fine grinding . POWER REQUIRED IN SIZE REDUCTION Material Specific gravity Work Index W i Bauxite 2.20 8.78 Cement clinker 3.15 13.45 Rittinger s law and (b) Kick s law calculate the power required for the second operation. The feed rate is 110 ton/h.

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  • Chapter 12 Comminution Energy and Evaluation in Fine Grinding

    This chapter highlights comminution energy and evaluation in fine grinding. The purposes for comminution are to liberate minerals for concentration processes to

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  • calculations bonds law for crushingMinevik

    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.

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  • bonds crushing law and work indexshibang-china

    Coal mining processing plant in Nigeria. This coal mining project is an open pit mine located in Nigeria announced by mining companyWestern Goldfieldsthat it has discovered 62 400 000 tonnes of proven reserves of coal deposits worth US 1.2 billion which could be used for the generation of electric power

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  • Peter von RittingerWikipedia

    Peter Ritter von Rittinger or Peter von Rittinger (see styling variants at Ritter) (23 January 1811 Nový Jičín / Neutitschein7 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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  • rittinger law specific grindinglinquendalandgoed

    rittinger law specific grindingyura-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 .

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  • Peter von RittingerWikipedia

    Peter Ritter von Rittinger or Peter von Rittinger (see styling variants at Ritter) (23 January 1811 Nový Jičín / Neutitschein7 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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  • CPE Lesson 15. Empirical laws of Size Reduction

    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.

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  • Peter von RittingerWikipedia

    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 Philosophy and the Faculty of Law of University of Olomouc.After completion of legal studies von Rittinger studied in the mining department at the Mining and Forestry Academy in Schemnitz (Banská Štiavnica

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  • Relationships between comminution J energy and product

    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

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  • Grinding and comminutionDelft Solids Solutions

    •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)

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  • Recter Law Specific Grindinggattiritratti

    rittinger law specific grinding . specific for grinding . rittinger law specific grinding Nola. Grinding and cuttingUnit Operations in Food ProcessingRL Earle . Equation (113) is known as Rittinger s Law As the specific surface of a particle the surface . Get Price vertical grinding mill specific powerCGM Grinding

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  • bond s law for crushing millsBewust Outdoor

    b = Correction factor for pebble crushing T 80 = Mill transfer size 80 passing (µm) W BM = Ball mill specific energy from T 80 1.7 mm to final product P 80 using Bond s Law (kWh/t) W T = Total grinding mill circuit specific energy (kWh/t) Note that K BM is the composite of EF3 EF4 and EF5 factors for ball milling (Rowland 1982).

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  • 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

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  • rittinger law crushercatalytec

    crushing energy consumption coal kick bond index bonds crushing law and work crushing and grinding calculations bond Bond s More Info Unit Operations in Food ProcessingR L Earle. If the density of the material is 1450 kg m and the total weight is 360 kg calculate the equivalent diameter Kick s Law (b) Rittinger s Law (c) Bond s .

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