European Type Jaw Crusher

European Type Jaw Crusher is a new crushing machine, the jaw crusher manufacturer, after the release of traditional jaw crusher. This jaw crusher is a perfect combination of modern science and technology and the production practice, which can better satisfy the automatic production demands of vast customers.

Input Size: 0-930mm
Capacity: 12-650TPH

Materials:
Granite, marble, basalt, limestone, quartz, pebble, copper ore, iron ore.

VSI6X Series Vertical Crusher

Due to the increasing market demand for the scale, intensification, energy conservation, environment protection and high-quality machine-made sand, a Chinese professional sand maker manufacturer, further optimizes the structure and function of traditional vertical-shaft impact crushers and launches a new generation of sand-making and reshaping machine with high efficiency and low costs --- VSI6X Series Vertical Crusher.

Input Size: 0-50mm
Capacity: 100-583TPH

Materials:
Granite, quartz, basalt, pebble, limestone, dolomite, etc.

LM Vertical Mill

High drying efficiency, Low running cost, Good environmental effect

LM Vertical Mill integrates crushing, drying, grinding, classifying and conveying together, and it is specialized in processing non-metallic minerals, pulverized coal and slag. Its coverage area is reduced by 50% compared with ball mill, and the energy consumption is saved by 30%-40% similarly.

Applications: Cement, coal, power plant desulfurization, metallurgy, chemical industry, non-metallic mineral, construction material, ceramics.

MTW Trapezium Mill

Large capacity, Low consumption, Environmental friendly

MTW European Trapezium Mill has a large market share in the grinding industry. Whether bevel gear overall drive, inner automatic thin-oil lubricating system or arc air channel, these proprietary technologies makes machine advanced, humanized and green.

Applications: Cement, coal , power plant desulfurization, metallurgy, chemical industry, non-metallic mineral, construction material, ceramics.

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Little abrasion wear, Long service life

Based on 30 years of development experience of grinding equipment, LM Heavy Industry produced LUM Series Superfine Vertical Roller Grinding Mill to make ultra-fine powder. The grinding roller doesn't contact with millstone usually, which makes abrasion little and service life longer.

Applications: Superfine dry powder of none-metal ores such as calcite, marble, limestone, coarse whiting, talc, barite and dolomite and so on.

rittinger law specific grinding

Rittinger an overview ScienceDirect Topics

2.2.6 The specific energy consumed in grinding. 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

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

Jun 01, 1973 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. Thus it is possible for Rittinger's and Bond's laws to

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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

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Grinding Mills Grinding Laws Technology Trends

Grinding Laws. In spite of a great number of studies in the field of fracture schemes there is no formula known which connects the technical grinding work with grinding results. Von Rittinger for d 0.05 mm; with W as grinding work in kJ/kg, c as grinding coefficient, The specific surface area referring to volume S v and the specific

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Unit Operations in Food Processing R. L. Earle

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

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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: E = K R f c (1/L 2 1/L 1) Where: E=Energy, K R =Rittinger’s Constant, f c =crushing strength of the material, L 1 =initial length, and L 2

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Energy requirements in size reduction of solids

law of Kick. The slope of cumulative curve varies from m = 0 to m 0.1. the range of coarse grinding is the range of Bond's theory, (rn = — 0.5) and the range of fine grinding is the range of Rittinger's theory ( m = — 1.0 ). the range of fine grinding from m = —1 to — 3, — the range of approaching grinding

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

Jun 01, 1973 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. Thus it is possible for Rittinger's and Bond's laws to

get price

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

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Unit OperatiOn Size Reduction ceng.tu.edu.iq

In the grinding process, materials are reduced in size by fracturing them. In the process, the material is stressed by the A Rittinger's Law (2) As the specific surface of a particle (the surface area per unit mass) is proportional to 1/L, equation (2) postulates that the Rittinger's Law fits the experimental data better. 3) Bond has

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Rittinger Law Specific Wet Ball Mill

Rittinger Law Specific Grinding Mc Machinery. Unit Operations in Food Processing R L Earle 20190224 Equation 113 is known as Rittingers Law As the specific surface of a particle the surface area per unit mass is proportional to 1L eqn 113 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

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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: E = K R f c (1/L 2 1/L 1) Where: E=Energy, K R =Rittinger’s Constant, f c =crushing strength of the material, L 1 =initial length, and L 2

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(PDF) Comminution energetics part III : Bond's law and

GRINDING LAWS The three laws of Rittinger, Kick and Bond can all be derived from the follow- ing relationship, proposed by Charles (1957), between energy consumed and mate- rial size C.51 : &=-kg Yn Setting the exponent n to 1, 11 or 2 upon integration defines the laws of Kick, Bond and Rittinger

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Energy requirements in size reduction of solids

law of Kick. The slope of cumulative curve varies from m = 0 to m 0.1. the range of coarse grinding is the range of Bond's theory, (rn = — 0.5) and the range of fine grinding is the range of Rittinger's theory ( m = — 1.0 ). the range of fine grinding from m = —1 to — 3, — the range of approaching grinding

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Influence of wood pellets properties on their grinding

Jun 09, 2021 The lab-scale disc mill and the application of Von Rittinger’s comminution law provide a quick assessment of the relative grindability (i.e., the ease of grinding) of wood pellets. Further grinding studies should focus on the grinding behavior of pellets made of

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size reduction,laws involved in size reduction

Oct 25, 2016 However,equations Rittinger’s law and Bond’s law were developed from studies of hard materials (coal and limestone) and deviation from predicted results is likely with many foods. 15. Basic parts of mill • Feed chute/hopper, which delivers the material. • Grinding mechanism usually consisting of a rotor and stator.

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(PDF) Development of size reduction equations for

Rittinger constant for grinding pine chips by hammer mill is Are scaling laws on stre ngth of solids. related to mecha nics Experimental study on specific grinding energy and particle size

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Comminution

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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Effect of Moisture Content on the Grinding Process and

Grinding is a staple size-reduction process to produce food powders in which the powdered form is chemically and microbiologically stable and convenient to use as end products or intermediate products. The moisture content of food materials before grinding is a particularly important factor, since it determines the materials’ physical properties and the powder properties, such as flowability

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Rittinger and Kick's Laws of Crushing

Mar 08, 2016 Rittinger 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

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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.

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CHAPTER 20: SIZE REDUCTION EQUIPMENT FOR SIZE

• 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 •

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A Physical Explanation of the Empirical Laws of Comminution

Nov 14, 2020 Investigators using Rittinger’s law have found that crushing efficiencies are generally extremely low. Some data of Martin who crushed quartz in an 18 x 18-in. tube ball mill using 1-in. diam balls are shown in Table I. In addition to comminution there is a second grinding process practiced on a wide industrial scale.

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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

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(PPT) Size Reduction zerp daf Academia.edu

K=KRfc and so dE/dL = KRfcL-2 where KR is called Rittinger's constant, and integrate the resulting form of eqn. (3.1), we obtain: E = KRfc(1/L2 1/L1) (3.3) ENERGY USED IN GRINDING- RITTINGER’S LAW As the specific surface of a particle, the surface area per unit mass, is proportional to 1/L. Eqn. (3.3) postulates that the energy required

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(PDF) Development of Size Reduction Equations for

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.

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Influence of wood pellets properties on their grinding

Jun 09, 2021 The lab-scale disc mill and the application of Von Rittinger’s comminution law provide a quick assessment of the relative grindability (i.e., the ease of grinding) of wood pellets. Further grinding studies should focus on the grinding behavior of pellets made of

get price

(PDF) Development of size reduction equations for

Rittinger constant for grinding pine chips by hammer mill is Are scaling laws on stre ngth of solids. related to mecha nics Experimental study on specific grinding energy and particle size

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Kick Rittinger Bond Powder 0 Technology 7(1973 Elsevler

View Kick Rittinger Bond.pdf from CHE 136 at University of the Philippines Visayas. Powder 0 Technology, 7 (1973) Elsevler Sequoia S A A Commentary 315 3 15-3 17,Lausanne Pnnted m The

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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

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what is bond s law of crushing MC World

Three laws of comminution or size reduction such as Kick's law, Rittinger's law and Bond's law are defined and its objectives in industrial. MILLING & ANALYSIS OF PARTICLES. In the 50s Bond came up with an empirical relation covering the range between Rit- tinger and Kick's law, correlating the mass specific comminution work WM,K

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Effect of Moisture Content on the Grinding Process and

Grinding is a staple size-reduction process to produce food powders in which the powdered form is chemically and microbiologically stable and convenient to use as end products or intermediate products. The moisture content of food materials before grinding is a particularly important factor, since it determines the materials’ physical properties and the powder properties, such as flowability

get price

What Is Particle Engineering? BulkInside

Apr 06, 2021 Kick’s Law states that the energy required to crush any given quantity of material to specific fractions is the same regardless of the initial size and applies to crushing solids. Rittinger’s Law states that the energy required to reduce particle size relates directly to the increase of surface area and not length or width.

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