【作者】 梁明昭；

【导师】 邹德余； 章忠棣；

【作者基本信息】 重庆大学 ， 冶金工程， 2005， 硕士

【摘要】 本文根据焦炭是高炉冶炼中不可缺少的基本条件之一,高炉炼铁不能没有焦炭,焦炭在高炉内起着发热剂、还原剂和料柱骨架作用,焦炭质量对高炉炼铁生产的技术经济指标和企业效益影响至关重要,指出改善焦炭质量,除与炼焦的煤质条件有关外,炼焦工艺对焦炭质量和炼焦能耗的影响不容忽视。炼焦生产工艺过程中的关键是焦炉控制,而焦炉控制的核心问题是如何控制焦炉火道的温度,火道温度与焦炭与焦炭质量及结焦时间等有密切关系,由于焦炉结构复杂及炼焦热源——燃料燃烧本身的复杂性,在炼焦生产实际中,对火道温度控制多靠人工经验或以全炉平均值,缺乏严格的科学依据。论文研究建立炼焦炉火道燃烧温度数学模型,以便科学的控制火道温度和结焦时间,保证焦炭质量和节省炼焦过程能耗,提高经济效益。 本文应用现代控制理论,系统分析及机理建模相结合的方法,对焦炉加热火道进行了模型化的研究,并在前人对焦化热介模型所做的工作基础上,建立了整个焦化过程从燃料到燃烧,再从燃烧到炭化室内焦化沿高向上温度分布及横向上温度分布的全过程数学模型,并根据工业试验,做了仿真验证,结果表明,其精度满足工业要求。适用于计算机工业控制,并在此模型的基础上,对最优加热策略进行了过程研究,开发出一条优化加热策略曲线,此外,用辨识的方法,建立了全炉数学模型,在此基础上提出了一套完整的全炉控制策略和方案。更多还原

【Abstract】 In this thesis, coke is one of the basic indispensability conditions of the in the high furnace smelt. There is impossible without coke in it, The coke rises to have fever, revivification and anticipate the pillar framework function in the high furnace, the coke quantity plays importance role to technique economic index sign and the business enterprise performances in progress of smelt iron, point out to improve the coke quantity, in addition to having something to do with the coal quality condition, It is no neglect that coke the craft to the coke quantity and coke consume influence. Coking stove control is of key in coke craft process. But how to control coking stove fire way temperature is core problem for it, a temperature of fire way has close of the coke quantity and knot burnt time etc, because of a complication structure stove and the cokehot source____The fuel combustion own complexity, in coking produce physically,about a temperature of fire way control depend on the artificial experience or with the average value of whole stove, Lacked strict science basis. The thesis research established coking stove fire way burnable temperature mathematics model, so as to control fire way temperature and coking time scenically, Guaranteeing the coke quantity and saving to coke process can consume, raise the economic performance.This text applied modern control theories, the system analysis and principles set up the method that mold combine, with heating fire way carried on the model research, and basis on people who they had studied coking Heated material model, and from coke room up to the temperature whole progress mathematics model and horizontal temperature distribute, According to industry experiment, did imitate the true verification, result show, its accuracy satisfies the industry request, and be applicable to the calculator industry control, furthermore, combine the foundation in this model, carried on the process to the superior heating strategy research, Develop an excellent turn the heating strategy curve, In addition, an optimal of heating strategy has further been developed based on the overall model as developed.更多还原