# On predicting roller milling performance - Part I: The breakage equation

G. M. Campbell, P. J. Bunn, C. Webb, S. C W Hook

Research output: Contribution to journalArticle

69 Citations (Scopus)

### Abstract

The mathematical relationship (breakage equation) between the inlet and outlet particle-size distributions of a roller milling operation is described, and the breakage function linking the two is defined. The forms of the breakage equation and the breakage function are different for roller milling than for other comminution operations, such as hammer milling or ball milling. The breakage equation is discretised to give a matrix form, from which it is demonstrated that during roller milling of wheat, particles break independently of one another. This is an important assumption of breakage equations for many comminution operations and experimental results are presented, which confirm its applicability to the roller milling of wheat grains. Breakage matrices are successfully used to predict the outlet particle-size distributions from First Break milling of wheat. Later papers in this series consider the form of the breakage function.

Original language English 234-242 9 Powder Technology 115 3 https://doi.org/10.1016/S0032-5910(00)00348-X Published - 30 Apr 2001 Yes

### Fingerprint

rollers
Comminution
Particle size analysis
wheat
Milling (machining)
Hammers
Ball milling
comminution
outlets
particle size distribution
hammers
matrices
balls

### Cite this

Campbell, G. M. ; Bunn, P. J. ; Webb, C. ; Hook, S. C W. / On predicting roller milling performance - Part I : The breakage equation. In: Powder Technology. 2001 ; Vol. 115, No. 3. pp. 234-242.
@article{6f634c111d05408c862ed2fd9d1d139e,
title = "On predicting roller milling performance - Part I: The breakage equation",
abstract = "The mathematical relationship (breakage equation) between the inlet and outlet particle-size distributions of a roller milling operation is described, and the breakage function linking the two is defined. The forms of the breakage equation and the breakage function are different for roller milling than for other comminution operations, such as hammer milling or ball milling. The breakage equation is discretised to give a matrix form, from which it is demonstrated that during roller milling of wheat, particles break independently of one another. This is an important assumption of breakage equations for many comminution operations and experimental results are presented, which confirm its applicability to the roller milling of wheat grains. Breakage matrices are successfully used to predict the outlet particle-size distributions from First Break milling of wheat. Later papers in this series consider the form of the breakage function.",
keywords = "Breakage matrix, Flour, Particle-size distribution, Roller milling, Wheat",
author = "Campbell, {G. M.} and Bunn, {P. J.} and C. Webb and Hook, {S. C W}",
year = "2001",
month = "4",
day = "30",
doi = "10.1016/S0032-5910(00)00348-X",
language = "English",
volume = "115",
pages = "234--242",
journal = "Powder Technology",
issn = "0032-5910",
publisher = "Elsevier",
number = "3",

}

On predicting roller milling performance - Part I : The breakage equation. / Campbell, G. M.; Bunn, P. J.; Webb, C.; Hook, S. C W.

In: Powder Technology, Vol. 115, No. 3, 30.04.2001, p. 234-242.

Research output: Contribution to journalArticle

TY - JOUR

T1 - On predicting roller milling performance - Part I

T2 - The breakage equation

AU - Campbell, G. M.

AU - Bunn, P. J.

AU - Webb, C.

AU - Hook, S. C W

PY - 2001/4/30

Y1 - 2001/4/30

N2 - The mathematical relationship (breakage equation) between the inlet and outlet particle-size distributions of a roller milling operation is described, and the breakage function linking the two is defined. The forms of the breakage equation and the breakage function are different for roller milling than for other comminution operations, such as hammer milling or ball milling. The breakage equation is discretised to give a matrix form, from which it is demonstrated that during roller milling of wheat, particles break independently of one another. This is an important assumption of breakage equations for many comminution operations and experimental results are presented, which confirm its applicability to the roller milling of wheat grains. Breakage matrices are successfully used to predict the outlet particle-size distributions from First Break milling of wheat. Later papers in this series consider the form of the breakage function.

AB - The mathematical relationship (breakage equation) between the inlet and outlet particle-size distributions of a roller milling operation is described, and the breakage function linking the two is defined. The forms of the breakage equation and the breakage function are different for roller milling than for other comminution operations, such as hammer milling or ball milling. The breakage equation is discretised to give a matrix form, from which it is demonstrated that during roller milling of wheat, particles break independently of one another. This is an important assumption of breakage equations for many comminution operations and experimental results are presented, which confirm its applicability to the roller milling of wheat grains. Breakage matrices are successfully used to predict the outlet particle-size distributions from First Break milling of wheat. Later papers in this series consider the form of the breakage function.

KW - Breakage matrix

KW - Flour

KW - Particle-size distribution

KW - Roller milling

KW - Wheat

UR - http://www.scopus.com/inward/record.url?scp=0035972106&partnerID=8YFLogxK

U2 - 10.1016/S0032-5910(00)00348-X

DO - 10.1016/S0032-5910(00)00348-X

M3 - Article

AN - SCOPUS:0035972106

VL - 115

SP - 234

EP - 242

JO - Powder Technology

JF - Powder Technology

SN - 0032-5910

IS - 3

ER -