焦炉加热控制系统设计VIP专享

焦 炉 加 热 控 制 系 统 设 计摘 要焦炉的加热过程是单个燃烧室间歇，全炉连续，受多种因素干扰的热工过程。其控制系统是典型的大惯性、非线性、时变的复杂系统，因此如何优化焦炉加热过程控制、降低炼焦能耗、确保焦炭均匀稳定成熟、延长焦炉使用寿命，仍然是炼焦业界重大难题。本文在深化进行焦炉加热燃烧过程工艺分析的基础上，根据控制系统的设计要求，提出了控制系统的总体结构。系统采纳西门子S7-300 PLC对各类参数（温度、压力和流量等）实施在线检测，并采纳MCGS 组态平台完成工艺流程的实时监视和控制。由于立火道温度直接测量很困难，所以根据蓄热室顶部温度建立立火道温度软测量模型，间接测量立火道温度。本控制系统满足了实际应用的需要，对提高焦炉生产率和焦炭质量 , 降低能耗及延长焦炉寿命 , 减少炼焦生产中的环境污染以及改善劳动条件具有重要的意义。可以为企业制造显著的经济效益和社会效益。关键词：焦炉，软测量，MCGS组态，PLC ；Coke oven heating control system designAbstractThe heating process of coke oven which is a single chamber intermittently and a continuous furnace, is disturbed by many factors .Its control system is a typical of large inertia, nonlinear, and time-varying complex 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 in-depth analysis of combustion 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 S7-300 PLC implement online testing on various parameters (temperature, pressure and flow, etc.), and complete platform configuration which using MCGS process real-time 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 legis...