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Hulthén, E. och Evertsson, C. (2010) *Two Variable Real-Time Algorithm for Cone Crusher Control*.

** BibTeX **

@conference{

Hulthén2010,

author={Hulthén, Erik and Evertsson, Carl Magnus},

title={Two Variable Real-Time Algorithm for Cone Crusher Control},

booktitle={XXV INTERNATIONAL MINERAL PROCESSING CONGRESS IMPC 2010},

isbn={978 1 921522 28 4},

pages={813-819},

abstract={Cone crushers are used in the mineral, mining, and aggregate industry for fragmentation of rock
materials. Control systems for cone crusher setting (CSS) are widely used to compensate for wear
and to protect the crusher. With a frequency converter the eccentric speed in a cone crusher can
be adjusted in real-time. The eccentric speed of the main shaft affects the number of compressions
the material is exposed to and thus the capacity and the particle size distribution of the product. By
applying mass-fl ow sensors to the process, a feedback of the different product yields is obtained in
every moment.
In this paper, a model and an algorithm are presented. The algorithm takes the incrementally
increasing CSS into account and compensates for this with a successively changing eccentric speed.
In order to implement the algorithm, a monitoring and control system is developed, including the
online algorithm for selection eccentric speed. The different product fl ows from the crushing plant
are continuously monitored by mass fl ow meters. The fi tness function is set by the plant management
depending on production targets and market situation. An earlier developed Finite State Machine
(FSM) algorithm is also implemented and evaluated in the system.
The developed algorithm has been validated and verifi ed at a crushing plant for aggregates with a
production of around 400 kton a year. The new algorithm is shown to increase the crushing stage
throughput with 6.9 per cent. The FSM algorithm, on the other hand, increases the throughput with
5.3 per cent, which is a confi rmation of the magnitude of its benefi ts demonstrated in an earlier
paper.},

year={2010},

keywords={cone crusher, control algorithm, eccentric speed, CSS},

}

** RefWorks **

RT Conference Proceedings

SR Print

ID 125730

A1 Hulthén, Erik

A1 Evertsson, Carl Magnus

T1 Two Variable Real-Time Algorithm for Cone Crusher Control

YR 2010

T2 XXV INTERNATIONAL MINERAL PROCESSING CONGRESS IMPC 2010

SN 978 1 921522 28 4

SP 813

OP 819

AB Cone crushers are used in the mineral, mining, and aggregate industry for fragmentation of rock
materials. Control systems for cone crusher setting (CSS) are widely used to compensate for wear
and to protect the crusher. With a frequency converter the eccentric speed in a cone crusher can
be adjusted in real-time. The eccentric speed of the main shaft affects the number of compressions
the material is exposed to and thus the capacity and the particle size distribution of the product. By
applying mass-fl ow sensors to the process, a feedback of the different product yields is obtained in
every moment.
In this paper, a model and an algorithm are presented. The algorithm takes the incrementally
increasing CSS into account and compensates for this with a successively changing eccentric speed.
In order to implement the algorithm, a monitoring and control system is developed, including the
online algorithm for selection eccentric speed. The different product fl ows from the crushing plant
are continuously monitored by mass fl ow meters. The fi tness function is set by the plant management
depending on production targets and market situation. An earlier developed Finite State Machine
(FSM) algorithm is also implemented and evaluated in the system.
The developed algorithm has been validated and verifi ed at a crushing plant for aggregates with a
production of around 400 kton a year. The new algorithm is shown to increase the crushing stage
throughput with 6.9 per cent. The FSM algorithm, on the other hand, increases the throughput with
5.3 per cent, which is a confi rmation of the magnitude of its benefi ts demonstrated in an earlier
paper.

LA eng

OL 30