Dissertation > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Component analysis instrument

Slurry flow rate , concentration, particle size measuring instrument integrated real-time online research and design

Author QiaoXiaoHui
Tutor ZhangShouMing;LuoFangMing
School Kunming University of Science and Technology
Course Control Theory and Control Engineering
Keywords Ore flow Ore consistency Ore Granularity Visual Basic Phoenix PLC Regression Analysis
Type Master's thesis
Year 2009
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In the mineral production process, the ore flow, ore consistency and ore granularity of mineral processing technology is an important economic indicator parameters, but the online detection of ore flow,consistency,particle-detection is one of the problems that the technicians who work on this subject has to face. The entire production process of closed-loop control will not be achieved if it the online detection can not be carried on, then the expected target can not be completed to improve production quality and optimized control.Based on the empoldering actualities about on-line granularity measuring equipment at home and abroad, combined with the actual demand, and relied on the key technology project of Kunming Hao Yuan Te Control Limited Company——The intergated instrument of real-time online measurement of Ore flow, Ore consistency and Ore Granularity, the article in-depth studies and analyses the ore granularity on-line measuring based on laser displacement, and applies the optics technique, sensor technique, automation control technique and mathematical statistics in ore parameters measuring. It provides the theoretical basis for realizing the high precision and real time on-line ore parameters measuring.Firstly, the article carries through the theoretical analysis of the measuring of ore flow ore, consistency and ore granularity based on displacement, particularly introduces the measuring principle, and brings forward the overall solution about measuring system. Secondly, the article carries through detailed design about the hardware of the measuring system, including machine design, hardware design of controlling system, circuit design of system and anti-jamming design of controlling system. Thirdly, the article carries through detailed design about software of the system, including the software design of upper PC, the software design of nether PC and opc communication design between upper PC and nether PC. Finally, the articles introduces the realizing mathematical model about ore flow,consistency and granularity on-line measuring, derivates and demonstrate the mathematical model of the system, and founds the multiple linear regression model based on single point acquisition, and carries through hypothesis about multiple regression model based on more acquisition.The measuring system directly puts the measuring equipments into the ore main pipeline, distinguishes from the sampling processes of other on-line measuring equipments. It realizes real time on-line measuring to ore granularity in real sense. Through theoretical derivation and experimental study, it is proved that the study in the article of granularity measuring technique has some advanced nature, the realizing way is practical, and has some practical value and application prospects.

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