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1 工程概况
该发电厂位于黑龙江省伊春市,是该市电力、热力主要供应企业,因技术改造需对其原有除尘支架进行拆除,该支架建于1970年,为钢筋混凝土框架结构,高15.7米,长29.2米,宽10.24米设有三层平台,平台顶浇筑钢筋混凝土平台,厚度为8厘米,由网格状钢筋混凝土横梁支撑,横梁由18根立柱支撑,集尘灰斗悬吊在第二层梁架上,厂方要求拆除上两层平台和四个灰斗,立柱6米以下部分保留,框架结构示意见图1。 相似文献
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文章对国家标准分析方法GB/T12689.7—2004锌及锌合金中镁的测定范围做了扩展,对方法的下限延伸至0.0020%,在0.0020%~0.010%范围做了杂质干扰实验、准确性实验和精密度实验,结果表明该方法回收率好,精密度好,在0.0020%~0.010%范围满足分析要求。 相似文献
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研究了单片机多机通信的基本原理,在此基础上提出了DOS平台下计算机与单片机串口多机通信的方案,并在硬件平台上实现.该方案不仅对硬件需求很少,而且软件编程简单方便. 相似文献
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含硼微合金钢动态再结晶模型的研究 总被引:3,自引:0,他引:3
采用单道次压缩实验方法,在Gleeble 1500热模拟机上试验和测试了含硼微合金钢(0.05C,1.57Mn,0.5Cu,0.25Mo,0.05Nb,0.01Ti,0.0012B)在不同变形速率下1000℃和1100℃时应力—应变曲线和热加工应变量对该钢晶粒尺寸的影响。在实验数据的基础上建立了该含硼微合金钢的动态再结晶动力学模型和动态再结晶晶粒尺寸模型。 相似文献
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夏雪 《上海宝钢工程设计》2004,18(1):74-80
本文介绍了在Windows平台上利用VB6.0作为前端应用程序开发环境,配合后端服务器SQL Server7.0数据库设计开发的上海某设计院工程项目经营计划管理系统。文中详细阐述了该系统的结构设计、功能特点及编程技巧,供有关工程技术人员、计算机应用人员参考。 相似文献
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姜长平 《冶金设备管理与维修》1996,(5):34-36
提出了同一试验机上进行滚动剪切和斜刃剪切试验的设想.并于1996年1月设计制造了1台小型试验机,同鞍山钢铁学院一起利用该机进行了科学试验.实验对两种材料进行同样条件下、同一速度300多刀次的剪切实测,并对结果进行数理统计、回归计算.提出了滚动剪最大剪力计算的经验公式,经验公式理论数据与实验数据之误差为3%~4%。用该经验公式对鞍钢厚板厂引进的DSS和DS滚切剪进行了公称能力的较验,其误差小于2.5%.说明该公式具有实际推广价值。 相似文献
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介绍了在实验电炉上涂或不涂红外涂料的对比实验情况,并进行了结果分析,结果表明:在该实验条件下,节能效果可在4.1%~7.4%。 相似文献
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Presented herein are ice-tank data concerning ice-rubble loads against a moored conical platform. Of prime interest is how rubble-ice loads are influenced by horizontal stiffness of the platform’s mooring system. An important, and heretofore undocumented, feature of rubble loading and clearing around the platform is the accumulation of ice rubble as a false bow, or prow, at the platform’s leading perimeter. The ice-tank data show that, under certain conditions of ice-rubble loading, the lowest stiffness of mooring tested resulted in prow instability and sloughing, which in turn lead to a cyclic pattern of loading, and to rubble congestion around the platform. An outcome of such rubble congestion was a marked increase in the overall rubble-ice load exerted against the platform. 相似文献
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Redhead Edward S.; Roberts Amanda; Good Mark; Pearce John M. 《Canadian Metallurgical Quarterly》1997,23(3):340
In three experiments, rats in a swimming pool were trained to find a submerged platform with a beacon attached to it. For some rats this beacon unambiguously identified the location of the platform; for others the beacon was made ambiguous by placement of an identical beacon in a different part of the pool. Test trials, in the absence of the platform and the beacons, revealed more persistent searching near the original location of the platform if the beacon attached to the platform had been ambiguous. These results show that learning about the location of the platform, with regard to cues that lie beyond the pool, is influenced by the extent to which an animal can find the platform by relying on other cues. The final experiment shows that this interaction between cues is influenced by an animal's prior experience. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Sansa J.; Rodrigo T.; Santamaría J. J.; Manteiga R. D.; Chamizo V. D. 《Canadian Metallurgical Quarterly》2009,35(4):566
Using a variation on the standard procedure of conditioned inhibition (Trials A+ and AX?), rats (Rattus norvegicus) in a circular pool were trained to find a hidden platform that was located in a specific spatial position in relation to 2 individual landmarks (Trials A → platform and B → platform; Experiments 1a and 1b) and to 2 configurations of landmarks (Trials ABC → platform and FGH → platform; Experiment 2a). The rats also underwent inhibitory trials (Experiment 1: Trials AZ → no platform; Experiment 2a: Trials CDE → no platform) interspersed with these excitatory trials. In both experiments, subsequent test trials without the platform showed both a summation effect and retardation of excitatory conditioning, and in Experiment 2a rats learned to avoid the CDE quadrant over the course of the experiment. Two further experiments established that these results could not be attributed to any difference in salience between the conditioned inhibitors and the control stimuli. All these results contribute to the growing body of evidence consistent with the idea that there is a general mechanism of learning that is associative in nature. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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针对地下金属矿智能矿山建设中集成化程度低、共享性差和协同性缺乏等问题,提出地下金属矿智能矿山总体规划,包含规划目标、规划思路、系统架构和应用平台架构。以矿山生产业务流和数据流为线索,围绕生产技术、生产管理、过程管控和安全环保,规划覆盖全要素、贯穿全流程的智能矿山建设内容。生产技术协同平台促进生产技术协同作业流程化和规范化,生产管理平台确保生产管理及时性与共享性,智能开采装备与系统保障现场作业人员安全和设备跟踪调度,安全环保平台为管理低成本化和痕迹化提供了方法,三维可视化智能管控平台为数据集成可视化提供了手段。研究成果可为地下金属矿智能矿山规划、设计和建设提供指导。 相似文献
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介绍数据平台在炼钢生产中的应用实践。主要介绍数据平台的体系构建,生产数据的实时采集和数据安全,数据平台与生产控制及武钢ERP的网络通讯和信息集成。利用网络和数据中心的实时数据库实现炼钢生产控制和武钢ERP系统的无缝连接和生产数据的共享,通过数据平台实现炼钢操作和炼钢执行系统MES的应用功能。 相似文献
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随着工业互联网平台技术的不断提升,高炉炼铁领域的数字化和智能化升级势在必行。为了解决高炉炼铁信息自动化体系在数据采集、存储、分析及应用等方面存在的问题,迫切需要构建高炉炼铁工业互联网平台。论述了工业互联网平台的发展现状,针对高炉炼铁领域的数据分析挖掘需求,搭建高炉炼铁工业互联网平台。阐述了平台整体架构中边缘层、基础设施层、平台层和应用层的结构逻辑,通过工业互联网技术实现数据传输、存储、处理、调度、业务建模、数据交互分析、智能应用等多项功能。探讨了基于平台以解决生产实际痛点为出发点的智能应用的建立过程。高炉炼铁工业互联网平台的建立对炼铁工业的转型升级具有重要的现实意义。 相似文献
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迁车台是翻车机系统的关键部分,负责车皮从重车线向空车线的转运。迁车台在使用过程中出现了行走轮打滑、啃道、卡滞,甚至脱轨的故障。为解决该类故障,提高迁车台的可靠性,从行走驱动装置的形状、尺寸、驱动方式等角度进行故障分析,并进行了改进。改进后的迁车台故障率减少,可靠性提高,有利于翻车机系统的正常高效运行。 相似文献