Abstract
In the face of strong competition, the kaolin calcination industry is aiming at higher profitability through increased productivity and reduction of costs. Specifically, the industry is facing market demands to maintain product quality with the depletion of high-quality ore. Therefore, considerable research is being conducted to enhance existing processes and their operation and control. In this paper, the concept of a mineralogy-driven control strategy for multiple hearth furnaces for kaolin production is presented and discussed. The aim of the advanced control concept is to increase capacity and to reduce energy consumption while maintaining the desired product quality. The control is based on two main soft sensors: the spinel phase reaction rate indicator for energy use reduction and the mullite content indicator for capacity improvement. In this simulation study, the control strategy is tested and compared with an industrial controller based on a proportional–integral scheme as a benchmark. The results show that the capacity of the process is considerably improved and energy use is remarkably reduced.
| Original language | English |
|---|---|
| Pages (from-to) | 18-27 |
| Number of pages | 10 |
| Journal | Control Engineering Practice |
| Volume | 81 |
| DOIs | |
| Publication status | Published - 1 Dec 2018 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- Advanced control
- Calcination
- Control performance
- Energy consumption
- Multiple hearth furnace
- Quality
- Soft sensor
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Control strategy for a multiple hearth furnace in kaolin production. / Jämsä-Jounela, Sirkka Liisa; Gomez Fuentes, Jose Valentin; Hearle, Jonathan; Moseley, David; Smirnov, Alexander.
In: Control Engineering Practice, Vol. 81, 01.12.2018, p. 18-27.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Control strategy for a multiple hearth furnace in kaolin production
AU - Jämsä-Jounela, Sirkka Liisa
AU - Gomez Fuentes, Jose Valentin
AU - Hearle, Jonathan
AU - Moseley, David
AU - Smirnov, Alexander
PY - 2018/12/1
Y1 - 2018/12/1
N2 - In the face of strong competition, the kaolin calcination industry is aiming at higher profitability through increased productivity and reduction of costs. Specifically, the industry is facing market demands to maintain product quality with the depletion of high-quality ore. Therefore, considerable research is being conducted to enhance existing processes and their operation and control. In this paper, the concept of a mineralogy-driven control strategy for multiple hearth furnaces for kaolin production is presented and discussed. The aim of the advanced control concept is to increase capacity and to reduce energy consumption while maintaining the desired product quality. The control is based on two main soft sensors: the spinel phase reaction rate indicator for energy use reduction and the mullite content indicator for capacity improvement. In this simulation study, the control strategy is tested and compared with an industrial controller based on a proportional–integral scheme as a benchmark. The results show that the capacity of the process is considerably improved and energy use is remarkably reduced.
AB - In the face of strong competition, the kaolin calcination industry is aiming at higher profitability through increased productivity and reduction of costs. Specifically, the industry is facing market demands to maintain product quality with the depletion of high-quality ore. Therefore, considerable research is being conducted to enhance existing processes and their operation and control. In this paper, the concept of a mineralogy-driven control strategy for multiple hearth furnaces for kaolin production is presented and discussed. The aim of the advanced control concept is to increase capacity and to reduce energy consumption while maintaining the desired product quality. The control is based on two main soft sensors: the spinel phase reaction rate indicator for energy use reduction and the mullite content indicator for capacity improvement. In this simulation study, the control strategy is tested and compared with an industrial controller based on a proportional–integral scheme as a benchmark. The results show that the capacity of the process is considerably improved and energy use is remarkably reduced.
KW - Advanced control
KW - Calcination
KW - Control performance
KW - Energy consumption
KW - Multiple hearth furnace
KW - Quality
KW - Soft sensor
UR - http://www.scopus.com/inward/record.url?scp=85053078930&partnerID=8YFLogxK
U2 - 10.1016/j.conengprac.2018.08.020
DO - 10.1016/j.conengprac.2018.08.020
M3 - Article
VL - 81
SP - 18
EP - 27
JO - Control Engineering Practice
JF - Control Engineering Practice
SN - 0967-0661
ER -