【作者】 朱桂梅；

【导师】 王宏文；

【作者基本信息】 河北工业大学 ， 控制科学与工程， 2011， 硕士

【摘要】 在钢铁企业中,烧结矿一直是高炉炼铁的主要原料,炼铁生产的能源消耗、质量及产量将直接受到烧结矿质量优劣的影响。在烧结过程中,配料是其中一道比较复杂且关键的工序,配料的好坏严重地影响着烧结矿质量的好坏,进一步决定了能否顺利的进行高炉炼铁。因此,烧结配料在国内烧结工业中占有重要的地位。烧结配料是一个复杂的工艺过程,而混合料的制粒湿度是影响烧结配料质量的一个很重要因素。迄今为止,在烧结过程中,混合料湿度控制是大多数烧结厂家非常关注的问题之一。本文依据烧结混合料制粒工艺的特点,针对制粒过程中存在的纯滞后和参数不稳定等系列问题,设计了模糊-史密斯湿度控制器,将此Fuzzy-Smith控制方法与传统的PID-Smith控制方法进行了仿真比较,结果表明Fuzzy-Smith控制器对制粒湿度系统的控制效果更佳。本论文对烧结过程配料控制系统的现场工艺情况、控制要求和配料过程特点等进行了详细分析。根据烧结配料控制系统I/O的统计,对控制系统硬件进行了配置和选型。应用自动控制领域里比较先进的控制技术设计了烧结配料自动化控制系统,系统能方便的实时监控配料过程的变量、工艺流程、过程参数等。更多还原

【Abstract】 In the iron and steel dustry enterprise, sinter is the main raw material of the blast furnace producing, the quality level of sinter ore will make direct influence on the energy consumption, quality and production of the ironmaking. Practical production has demonstrated that sintering burden is a rather complicated and significant process in sintering technique, a well sintering burden may lead to a fine quality of sinter ore and a successful operation in blast furnace ironmaking. So, sintering burden is quite significant in our sintering industry.The sintering burden is a complicated technological process,and the mixture humidity of the granulating craft is more significant factor to the quality of sintering burden. Nowadays, the study to the humidity control of the granulating craft of the sintering process is one of interest problem to many sintering plant. Judging by the feature of the granulating craft, according to the characteristic of large time-delay and perturbation parameter of granulating craft, the fuzzy-smith humidity controller is established. Comparing the simulation result of Fuzzy- Smith control and PID-Smith control,this thesis obtain the conclusion that Fuzzy- Smith control is suitable for the granulating craft system.This paper analyse detailedly on the craft condition, controlling requirements and the characteristic of sintering burden process. According to the types select of the satistic mount of I/O of the control system of sintering burden, the thesis configured and select the types of control system hardwares. The automation controlling system of the sintering burden is designed by using developed automotive control technique. By this way, the controlling system achived the real-time monitor of sintering burden process,real-time supervisory of technological process and real-time control of process parameters.更多还原