LEI Shaojun, XU Xiao, CHENG Mingyang, ZHU Chengjiu, YIN Sihua

(School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China)

Abstract: Ceramic roller kiln is among the most important equipment in the ceramic tile manufacturing. In the roller kiln firing zone, due to its complex working conditions and long-term full-load operation, the probability of abnormality is high and the cause of the abnormality is often difficult to diagnose. Energy-based exergy splitting technology has been shown to have good performance in detection and isolation. For this reason, taking ceramic roller kiln as the research object, an abnormal detection and isolation method was proposed, based on exergy analysis. Firstly, based on the conservation of energy and mass, a dynamic balance equation of the input and output of the firing zone is established. Secondly, the data of the roller kiln firing zone is abstracted into the system exergy and the exergy abnormal vector is constructed as the diagnostic index of the abnormal detection method. Finally, an experiment was conducted using the data of the roller kiln firing zone of a ceramic company. 

Key words: fault detection; exergy analysis; roll kiln firing zone; exergy abnormal vector