Cement Rotary Kiln Fault Diagnosis System

Rotary kiln decomposition is the most important technics tache in the cement production line, and its running status affects the output, quality, energy wastage and environment pollution. Because of its complicated technics, atrocious producing enviorment, numerous equipments and large scale control, once there is fault in some tache, it's difficult to diagnose the reason, leading to the long time stop production. But by now there is no corresponding report on fault diagnosis technology aiming at rotary kiln decomposition system. In that, the research on the fault diagnosis to the new kind rotary kiln decomposition system, and to develop a ingreted fault diagnosis system, which can predict and diagnose the rotary kiln's fault rapidly, has theory and actual significance.On the base of fully analyzing rotary kiln decomposition's technics process, the relationship between fault phenomenon and reason has been found. On the base of the current fault diagnosis technology and rotary kiln decompostion technics character, a new fault diagnosis arithmetic based on the fault fuzzy classification and CBR (Case-based Reasoning) has been brought forward. And the corresponding computer programa and fault diagnosis system for the rotary kiln has been desined and set up.The fault dianosis for rotary kiln devides the fault into technics fault and equipment fault according to the fault property, into four levels: fault part, fault location, fault character and degree according to the diagnosis. The fault phenomenon information can be input from the process control system's real time database on line, or be input artificially off line. The computer fault diagnosis system possess the function of case study and case database self enriching, which makes the system can impove its diagosis capability continually. It has important significance to the cement's high-quality, large-yield, low-consumption production.Whereas the fault diagnosis on new kind cement rotary kiln has its particularity, it relate to material science, process control and computer science, there is no mature diagnosis mathmatics model and computer arithmetic. The fault diagnosis arithmetic and system brought forward in this paper has made elementary research and discuss,supplying use for reference for farther study.