ISSN: 1003-6326
CN: 43-1239/TG

Vol. 10    No. 5    October 2000

Expert fault diagnosis system for leaching process in
zinc hydrometallurgy①
WU Min(吴 敏), TANG Zhao-hui(唐朝晖), GUI Wei-hua(桂卫华)
(Department of Automatic Control Engineering, Central South University of Technology,
Changsha 410083, P.R.China
Abstract: Leaching process is the first step in zinc hydrometallurgy, which involves the complex chemical reactions for dissolving zinc-bearing material in dilute sulfuric acid. Ensuring the safe running of the process is a key point in the operation. An expert fault diagnosis system for the leaching process was proposed, which has been implemented in a nonferrous metals smeltery. The system architecture and the diagnosis procedure were presented, and the rule models with the cer-
tainty factor were constructed based on the empirical knowledge, empirical data and statistical results on past fault countermeasures, and an expert reasoning strategy was proposed which employs the rule models and Beyes presentation and combines forward chaining and backward chaining.
Key words: zinc hydrometallurgy; leaching process fault diagnosis; expert systems rule models; Beyes presentation
Superintended by The China Association for Science and Technology (CAST)
Sponsored by The Nonferrous Metals Society of China (NFSOC)
Managed by Central South University (CSU)