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2020 Vol.52, Issue 3 Preview Page
Research on Modeling and Dynamic Characteristics Analysis of Alkali Recovery Furnace
Yan Li1
,
Qian Chen2†
,
Fei Wei3
,
Qing-yu Dai4
1Department of Electrical & Control Engineering, Shaanxi University of Science & Technology, Xi’an, 710021, China, Professor
2Department of Electrical & Control Engineering, Shaanxi University of Science & Technology, Xi’an, 710021, China, Student
3Department of Electrical & Control Engineering, Shaanxi University of Science & Technology, Xi’an, 710021, China, Student
4Department of Electrical & Control Engineering, Shaanxi University of Science & Technology, Weiyang District, Xi’an, 710021, China, Lecturer
†Corresponding author: E-Mail: 876397837@qq.com (Addresse: Department of Electrical & Control Engineering, Shaanxi University of Science & Technology, Xi’an, 710021, China, Student)
30 June 2020. pp. 15-32
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Abstract

In order to analyze the relationship between the temperature of the furnace, the oxygen content of the flue gas, the pressure of the furnace, and the flow of black liquor, the amount of air supply, and the amount of induced air during the combustion of the alkali recovery furnace, this paper designs an experiment of alkali recovery furnace combustion process by using the control variable method in the actual field. The analysis of the experimental results shows that there is a certain coupling relationship between variables. On this basis, using the principle of material balance and energy balance, a dynamic control oriented mathematical model of alkali recovery combustion process is established, and the model is verified. The verification results show that the model is consistent with the experimental results, which can reflect the on-site operation of the alkali recovery furnace. Finally, the relative gain matrix is used to analyze the correlation degree of the system. The three-input and three-output control system can be divided into a two-input and two-output coupling system and a single-input and single-output control system, which can simplify the design of the control system of the alkali recovery furnace and provide a theoretical basis for the formulation of the control strategy and control scheme of the alkali recovery furnace.

Keywords
Alkali recovery furnace
mechanism modeling
coupling degree analysis
References

Literature Cited

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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 52
  • No :3
  • Pages :15-32
  • Received Date : 2020-04-05
  • Revised Date : 2020-06-06
  • Accepted Date : 2020-06-08
  • DOI :https://doi.org/10.7584/JKTAPPI.2020.06.52.3.15
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