Control schemes for an industrial rotary calciner with a heat shield around the combustion zone
Document Type
Article
Publication Date
1-1-1999
Abstract
Soda ash (sodium carbonate) is produced by calcining natural trona ore (sodium sesquicarbonate) in rotary calciners. Shell overheating, the consequent deformation of the calciner shell, and heat loss are frequently encountered problems during this operation. Installation of a concentric, metallic heat shield around the calciner's combustion zone can help to reduce the shell temperature and recover some of the energy that would otherwise be lost. Another problem often encountered is the deterioration of product quality when the system inputs deviate from their design rates. A mathematical model of the calciner with a heat shield is used to design different control schemes in order to maintain the product quality. Performance of the designed control schemes is demonstrated via computer simulation.
Publication Title
Industrial and Engineering Chemistry Research
Recommended Citation
Ciftci, S.,
&
Kim, N.
(1999).
Control schemes for an industrial rotary calciner with a heat shield around the combustion zone.
Industrial and Engineering Chemistry Research,
38(3), 1007-1023.
http://doi.org/10.1021/ie980229b
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/8005