【正文】 control system is a typical of large inertia, nonlinear, and timevarying plex system. So how to optimize the process of coke oven heating control, reduce coke consumption to ensure the stability of coke evenly ripe and extend the service life of coke is still a major problem. This passage is about coke oven heating indepth analysis of bustion process on the basis of the control system in accordance with the requirements of a control system for the overall structure. System uses a Siemens S7300 PLC implement online testing on various parameters (temperature, pressure and flow, etc.), and plete platform configuration which using MCGS process realtime monitoring and control. Because direct measurement on flue temperature is difficult, according to the temperature at the top of regenerator flue temperature it can establish legislation softsensor model to finish an indirect measurement of flue temperature legislation. The control system meets the needs of practical applications, which improving the quality of coke oven coke productivity, reducing energy consumption and extending the life of coke oven, What39。 目 錄 摘 要 .........................................................................................................................................I Abstract ...................................................................................................................................... II 第一章 引 言 ............................................................................................................................ 1 研究背景與目標 ......................................................................................................... 1 焦爐加熱控制系統(tǒng)的發(fā)展狀況 ................................................................................. 2 焦爐加熱控制方案介紹 ............................................................................................. 3 焦爐加熱控制系統(tǒng)設(shè)計思想 ..................................................................................... 4 第二章 焦爐加熱控制系統(tǒng)總體結(jié)構(gòu)設(shè)計 ............................................................................... 6 焦爐加熱燃燒工藝過程 ............................................................................................. 6 焦爐加熱控制的難點分析 ......................................................................................... 8 控制系統(tǒng)總體結(jié)構(gòu)及過程參數(shù)檢測 ......................................................................... 9 控制系統(tǒng)總體結(jié)構(gòu) ......................................................................................... 9 溫度控制策略設(shè)計 ......................................................................................... 10 過程參數(shù)檢測 ............................................................................................... 11 立火道實際溫度檢測方法的確定 ............................................................... 11 立 火道溫度軟測量 ................................................................................................... 12 立火道溫度軟測量模型的建立 ................................................................... 13 蓄頂溫度檢測點設(shè)置 ................................................................................... 15 第三章 硬件系統(tǒng)設(shè)計 ............................................................................................................. 20 PLC 特點介紹及選型 ............................................................................................... 20 內(nèi)蒙 古科技大學畢業(yè)設(shè)計 說明書（畢業(yè) 論文 ） PLC 特點介紹 ............................................................................................... 20 PLC 選型 ....................................................................................................... 20 上位機選取 ............................................................................................................... 22 熱電偶選型 ............................................................................................................... 22 控制器 ...................................................................................................................... 24 溫度控制器 ................................................................................................... 24 混煤壓控制器和吸力控制器 ....................................................................... 25 壓力檢測儀表、流量計、變送器及執(zhí)行器 ........................................................... 25 壓力檢測儀表 ................................................................................................ 25 流量計 ........................................................................................................... 26 變送器 ........................................................................................................... 27 執(zhí)行器 ........................................................................................................... 28 第四章 軟件系統(tǒng)設(shè)計 ............................................................................................................. 29 上位機軟件系統(tǒng)設(shè)計 ............................................................................................... 29 焦爐加熱控制系統(tǒng)監(jiān)控畫面 ....................................................................... 30 數(shù)據(jù)顯示畫面 ............................................................................................... 31 下位機系統(tǒng)主程序流程圖 ....................................................................................... 33 混合煤氣壓力控制回路子程序流程圖 ................................................................... 34 吸力控制回路子程序流程圖 ................................................................................... 35 第五章 結(jié)束語 ......................................................................................................................... 36 參考文獻 .................................................................................................................................. 38 附錄 A 焦爐加熱控制系統(tǒng)監(jiān)控畫面 ..................................................................................... 40 附錄 B PLC 程序 ..............................................................