共查询到18条相似文献,搜索用时 93 毫秒
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以透气性为中心的烧结过程状态控制专家系统 总被引:6,自引:1,他引:5
为了改善料层敢性、控制烧结终点、稳定烧结过程,提出了烧结过程热郑州 气状态相结合的烧结过程控制方案以及以透气性为中心的控制策略;研究了烧结过状态控制专家系统的知识库和推理机的设计,建立了烧结过程状态控制专家系统。 相似文献
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烧结过程智能优化控制方法及应用(上) 总被引:3,自引:1,他引:2
以国内外烧结过程控制技术发展状况为背景,论述了烧结过程智能优化控制的方法及应用,即烧结配料优化方法和烧结过程热状态优化控制(包括烧结终点控制和点火燃烧控制)。分析了上述三个优化控制问题的复杂性,指出了采用模糊控制、神经网络、专家系统等智能方法可以实现烧结过程的优化控制。将提出的智能优化控制方法应用于工业现场,运行结果表明:该方法不仅能在满足烧结矿质量要求的前提下,有效降低配料成本,而且显著改善了工况波动情况,提高了烧结机利用系数及烧结矿质量指标,降低了燃料消耗。最后简要展望了烧结过程控制技术今后的发展方向。 相似文献
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烧结钢生产过程中的尺寸变化及其控制(1) 总被引:2,自引:0,他引:2
烧结零件的尺寸变化及控制对其生产过程及成本至关重要,尤其是近几年烧结硬化技术的发展,减少了烧结后精整(sizing)的可能性,对烧结过程中零件的尺寸变化及其控制提出了更高的要求,本文结合烧结钢零件的生产过程综述了影响尺寸变化的各种因素,并阐述如何协调这些因素以便最有效地控制尺寸变化。并结合烧结钢最常用的几个合金体系举例说明。 相似文献
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本文提出烧结过程气氛宏观判定指数P的概念,同时建立了P的计算方法,作为诊断、指导烧结生产过程反应状态适宜度的一重要判据;也可作为烧结控制系统的设计参数及烧结专家系统知识库的知识单元。 相似文献
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本文介绍了武钢一烧烧结过程优化控制系统的系统结构、数据库管理系统和主要控制模型的工作机制,该系统是我国第一个投入运行的烧结过程完全自动化控制的系统。 相似文献
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The process state of iron ore sintering is characterised via the bed permeability, the temperature rising point, the burn rising point and the burn through point. The intelligent control strategy of sintering process based on fan frequency conversion is put forward. The stability of process state is firstly evaluated based on the knowledge of domain experts. If process state is fluctuating, an expert controller is activated to realise a normal production. If process state becomes steady, then a fuzzy controller is activated to obtain the optimisation of process state and reduce the power consumption of main exhaust fan. The closed-loop control of sintering production showed that the system can realise the optimisation of sintering process state, and reduce the energy consumption of sintering production while ensure the stability of sinter quality indices, it theoretically saves power consumption of 1×104?kWh every day. 相似文献
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An expert system skeleton tool of sintering process was constructed using object-oriented method, which can actualize two functions, i. e. , the shell function and the program function. The skeleton tool offered a platform to build a prototype system, to program class code, and to develop the expert system. Four branch expert systems were developed using the skeleton tool including the control of chemical composition, the control of sintering process state, the control of expended energy, and the diagnosis of abnormity. It is found that the performance of all systems is satisfactory in practice. 相似文献
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邓玉峰 《有色冶金设计与研究》2021,(1):13-16
分析了氧化物料直接返回烧结配料的不良影响,介绍了韶关冶炼厂将氧化物料通过制粒应用在生产中,并逐步提升制粒颗粒在烧结配料中的占比,调整烧结过程的工艺参数,逐步改善烧结过程中物料流转状态,使烧结块的产能和电尘的产出逐步形成一种良性的平衡的应用实践。此技术的实施应用有效地提升了烧结车间的烧结块产能,降低ISP工艺原料成本,提升ISP工艺的经济效益和社会效益。 相似文献
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Iron ore sintering is a part of blast furnace ironmaking production. In order to upgrade the sintering automation and intelligent manufacturing, it is necessary to carry out sintering process modeling and simulation optimization. The research status of sintering process modeling and simulation was discussed. And three kinds of model, namely process mechanism and feature information characterization model, data- driven fusion model and field state analysis numerical simulation model, were summarized from the aspects of information modeling and intelligent optimization. The advantages and disadvantages of a series of model construction methods were analyzed by combining with automation requirement of sintering process, and the simulation models application trends were proposed. According to the requirement of sintering intelligent manufacturing that included in the ??Made in China 2025?? plan, the production practices of sintering process modeling and simulation optimization are crucial. 相似文献
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在富氧烧结中,其主要作用为在对铁矿石的烧结过程中,控制氧气的流量,保证在烧结环境中能使得烧结的质量进一步提高。在工程的实现中,无疑要用到流量的控制。流量控制在富氧烧结过程中起到了很大的作用,可以说,流量监测不好、控制不好,会给富氧烧结的实现带来很大的麻烦。 相似文献