Solved 1) It is found that the energy required to reduce
1) It is found that the energy required to reduce particles from a mean diameter of 1 cm to 0.3 cm is 11 kJ/kg. Estimate the energy requirement to reduce the same particles from a diameter of 0.1 cm to 0.01 cm assuming: a) Kick's Law, b) Rittinger's Law, c) Bond's Equation (Answer: 21 kJ/kg, 423 kJ/kg, 91 kJ/kg) 2) A crusher is reducing black pepper …
Bestimmung der Prozessparameter von Zerkleinerungsprozessen …
So kann nach den Zerkleinerungsgesetzen von Rittinger, Kick und Bond die Zerkleinerungsenergie für geforderte Endpartikelgrößen x ω grob abgeschätzt werden. Hierbei wird eine Proportionalität zwischen dem Energiebedarf einer Zerkleinerungsapparatur und dem Energiebedarf zur Zerkleinerung einzelner Partikel …
CPE: Lesson 15. Empirical laws of Size Reduction
A material consisting originally of 20 mm particle crushed to an average size of 5 mm and required 30 kJ/kg for this size reduction. Determine the energy required to crush the material from 20 mm to 3 mm assuming (a) Rittinger's law, (b) Kick's law and (c) Bond's Law. Solution: (a) Applying Rittinger's law as expressed by equation (4.10)
Breakthrough in Clinker Grinding
Kick for particles greater than 50 mm in diameter Bond for particles smaller than 50 mm but larger than 0.05 mm in diameter Von Rittinger for particles smaller than …
Relationships between comminution J energy and …
Rittinger, Kick and Bond, are obtained respec-tively. Rittinger (1867) stated that the energy required for size reduction is proportional to the new surface area generated. Since the specific surface area is inversely proportional to the particle size, Rittinger's hypothesis can be written in the following form: [2] where E is the net ...
14 Size ranges applicable to Von Rittenger, Kick, …
Most data available from primary breakage devices (SILC and ILC) are from particles approximately 20 mm to 3 mm in diameter. These have been used to calculate parameters such as the minimum energy ...
Comminution
There are many experimental results in favour of the theory of Rittinger [], scant evidence for the theory of Kick [] and the evidence for the third theory is provided by Bond himself [].Generally, the size range covered by these experiments is also relatively narrow [].Thus, it is strongly suggested that all the comminution theories are actually …
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 …
TUGAS MANDIRI CRUSHING PLAN (MTG 6207) TEORI RITTINGER, TEORI BOND
Hukum Rittinger cocok untuk grinding fine powder. C. TEORI KICK (1885) E sebanding dengan size reduction ratio. Teori ini cocok digunakan untuk alat yang menerapkan prinsip kompresi menghasilkan produk berukuran besar. Persamaan (1) dengan n=1 akan mengikuti hukum Kick : D. TEORI BOND (1952) Persamaan (1) dengan n= 1,5 akan …
Development of Size Reduction Equations for Calculating …
Rittinger, Kick, and Bond (in some publication s these three . equations are referred to as grinding laws). These equations . extrapolate energy input to a grinder based on a reduction .
ENERGY DISTRIBUTION IN COMMINUTION: A NEW …
The main assumption is that the energy required for breaking a particle is consumed by the new surfaces. This is expressed by
walker kick rittinger bond ecuaciones
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 ...
Chapter 6 Comminution
Bond [4] claimed that although the Rittinger theory is concerned with the measurement of surface areas and the Kick theory with the volumes of the product ... Walker [70] found that neither Rittinger's nor Kick's equation represented all facts properly and gave a general comminution equation that encompassed both
(PDF) MODIFIED BOND AND RITTINGER ENERGY-SIZE
Rittinger, Kick and Bond," Transactions on AIME, Vol. 220, p p. 403-408. 4. Jankovic, A. (2003) Variables affecting the fi ne grinding of minerals using stirred mills,
(PDF) CONMINUCIÓN DE MINERALES | Niels CR
Las constantes "C" y "n" de la ecuación, dependen tanto del material como del equipo de conminución. Charles demostró que las tres leyes de la conminución (Rittinger, Kick y Bond), anteriormente propuestas, eran casos particulares de la ecuación (2.28) para valores de "n" equivalentes a 2, 1 y 1,5 respectivamente.
Breakthrough in Clinker Grinding
Kick for particles greater than 50 mm in diameter Bond for particles smaller than 50 mm but larger than 0.05 mm in diameter Von Rittinger for particles smaller than 0.05 mm in diameter Hukki (1962) attempted to balance the work of Von Rittinger, Kick, and Bond by combining the individual equations into one general form.
DEVELOPMENT OF SIZE REDUCTION EQUATIONS FOR …
Rittinger, Kick, and Bond (in some publications these three equations are referred to as grinding laws). These equations extrapolate energy input to a grinder based on a reduction
Thí nghiệm quá trình thiết bị chương 7
- Chỉ số công phụ thuộc vào loại máy nghiền (các máy khác nhau nhưng cùng loại có W i xấp xỉ nhau) và vật liệu nghiền (các vật liệu khác nhau có W i khác nhau) 2 10) Phát biểu đònh luật Bond, Rittinger và Kick. ĐỊNH LUẬT BOND : …
A commentary on the Kick, Bond and Rittinger laws of grinding
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 apply to the same set of data. Recommended articles. References (6) Size reduction; F.C. Bond. AIME Mining Trans. (1960)
A commentary on the Kick, Bond and Rittinger laws of …
Semantic Scholar extracted view of "A commentary on the Kick, Bond and Rittinger laws of grinding" by L. G. Austin. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 220,392,963 papers from all fields of science. Search.
Development of Size Reduction Equations for Calculating …
Specific grinding energy (J/g) was correlated with size parameters of three popular industrial equations: Kick, Rittinger, and Bond. All three equations fitted to the experimental data linearly but the best fitted lines did not go through the origin, i.e. the fitted lines had a slope and intercept. Rittinger equation had the best fit, followed ...
es/ecuación de bond de chancado.md at main · …
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412330076-Ley-de-Rittinger.pdf
Ley de Rittinger. : La ley de desintegración propuesta por Rittinger en 1867 establece que el trabajo que se requiere para la es integración es proporcional a la nueva superficie creada. Esta «ley», que realmente no es más que una hipótesis, es equivalente a establecer que la eficacia de desintegración naces constante y, para una máquina y …
Energy distribution in comminution: A new approach to the …
The commonly used grinding equations (Kick, Rittinger, and Bond equations) assign values to the constant (n) in the general equation (Equation 2.2) …
Verify the laws of size reduction using Ball mill and calculate Kick …
The laws of size reduction, also known as the "kick's laws," are empirical relationships that describe the energy requirements for size reduction processes. Aim. To verify the laws of size reduction using Ball mill and calculate Kick's constant, Rittinger's constant, and Bond's work index of ball mill. Requirements. Powder sample ...
Austin, L.G.
1) Two forms of grinding laws exist - the Kick and Rittinger laws are special cases of one form relating differential energy to particle size reduction, while Bond's law is a special …
BAB III SIZE REDUCTION
Hukum Rittinger, Hukum Kick, dan Hukum Bond . a. Hukum Rittinger. Hukum Rittinger (1867) menyatakan bahwa kerja yang diperlukan untuk memecah partikel sebanding dengan luas permukaan yang terbentuk. Keterangan : P = Power (watt) ṁ = Debit massa (kg/s) Kr = Konstanta Rittinger Dsb = Diameter screen (m) Dsa = Diameter bahan awal …
Size–energy relationship in comminution, incorporating scaling …
Notable theories were conceived by Rittinger, Kick and Bond (Balaz, 2008, Jankovic et al., 2010, Morrell, 2004, Bond, 1952, Austin, 1973). The basis for Rittinger's work is that the comminution energy dissipation is proportional to the formation of the new surface area. Kick's theory rests on the proportionality of the required energy with the ...
Go Back Development of a Size Reduction Equation for …
The three grinding equations of Kick, Rittinger, and Bond have built-in fundamental mechanisms, but each of these equations has one constant whose value must be estimated from experimental size ...