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The Optimal Design For Control System Of Ceramic Filter Based On PLC

Posted on:2015-06-10Degree:MasterType:Thesis
Country:ChinaCandidate:C L WangFull Text:PDF
GTID:2181330467488529Subject:Control theory and control engineering
Abstract/Summary:PDF Full Text Request
In the mine production enterprises, the concentrate dewatering process is the criticalaspects in the whole process, which directly affects the concentrate production, due to thedehydration continues to refine the grain size of mineral beneficiation, Advanced technologyand efficient dewatering equipment in beneficiation industry is also growing concern.Ceramic filter for its excellent performance as a separate device, is gradually penetrate intothe plant ’s concentrate dewatering. However, with the degree of in-depth exploration ofmineral, the improvement performance of the ceramic filter, its automation controlrequirements are also rising. In one lead-zinc mine, there still exist some problems of ceramicfilter in the actual operation. For example, the water is not up to concentrate, the equipmentfailure and low concentrate production. After consulting a large number of references, thispaper concentrates research on the problem of concentrate moisture substandard, in order toimprove fine mineral energy purposes.The article of the ceramic filter system research content includes the following severalaspects:Firstly, compared the current status and development of ceramic filter,and then analysisthe basic structure and processes of the ceramic filter. It proposed Siemens S7-300PLC ascore control systems,and Beijing Kunlun-state MCGS as PC monitoring software overallcontrol scheme of the ceramic filter system, also it using a star topology Ethernet network,so,the whole system achieved the integration of network information, facilitated the realizationof the transmission and exchange of information.Secondly, following the overall scheme of the system, its hardware and software weredesigned, in hardware section, it set the selection and configuration of hardware, The wiringof hardware peripherals and modules were designed too; in software design, achieved therelated hardware configuration, and then written the system-related procedures. Since theplant at the time of mineral water testing, it uses the traditional manual sampling methods, byfeeling or observation to determine humidity, there must be exist some errors, to response thissituation, the paper introduces a precise infrared moisture detector test, by feedbackinformation transmission can be realized precise control.Again, the paper use a fuzzy PID control algorithm and build a simulation model toimprove the accuracy of concentrate moisture. Simulation results show that compared withthe traditional PID, fuzzy self-tuning PID is better than the control of mineral concentratemoisture, this solved the problem of concentrate moisture substandard in the using of ceramic filter, and improved the productivity and efficiency of the system.Finally, the section has been set up for the PC monitoring program and interface ofdehydration in the mine factory, after a brief introduction of the configuration softwareMCGS, then analysis of the monitoring system needed to the object, and then produced amajor monitoring interface in the dehydration section, then set on the interface monitoringequipment and the related process parameters, which enable managers to facilitate on-siteand remote monitoring, and also ease of management and personnel maintenance.
Keywords/Search Tags:Ceramic filter, Fuzzy PID, S7-300PLC, Monitoring interface
PDF Full Text Request
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