共查询到20条相似文献,搜索用时 140 毫秒
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METSIM是广泛应用于冶金、化工等领域进行工艺模拟的一种程序,基于单元操作模块进行化学和过程控制,可以模拟复杂流程的质量和能量平衡.回转窑—电炉(RKEF)工艺是目前处理硅镁型红土矿生产镍铁合金的先进成熟工艺,将METSIM软件用于RKEF工艺的物料平衡和能量平衡模拟,可以快速得到冶金计算结果. 相似文献
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针对铸造V型辊在加工过程中经常出现缩孔缺陷这一现象,采用铸造工艺模拟软件ProCAST对V型辊铸造模样的凝固过程进行模拟,预测了铸造缺陷产生的区域并分析了原因,得出改善V型辊的浇注方式、冒口等铸造工艺,可以有效解决缩孔问题,优化了铸造工艺,对生产提供了有效的指导方法. 相似文献
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硫酸工艺设计计算存在参数多、计算量大的特点。采用计算机编程技术编制硫酸工艺设计计算软件,为硫酸工艺设计时大量的计算提供电子化服务,以方便快捷的计算机计算代替了传统的手工计算,充分发挥了计算机技术的优势,把人从繁杂和重复的计算劳动中解放出来,有效地降低设计成本,大幅减少了设计周期,提高了工作效率。 相似文献
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杨卫严 《有色冶金设计与研究》2016,(4):14-16
详细介绍了METSIM软件在高铅渣侧吹还原工艺设计中的应用案例,通过模型的建立、模型计算结果分析以及模型的验证,说明METSIM软件能够在工艺设计中获得准确、详尽的设计数据,为工程后续工作奠定了坚实的基础。 相似文献
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The importance of accurate estimates during the early stages of capital projects has been widely recognized for many years. Early project estimates represent a key ingredient in business unit decisions and often become the basis for a project’s ultimate funding. However, a stark contrast arises when comparing the importance of early estimates with the amount of information typically available during the preparation of an early estimate. Such limited scope definition often leads to questionable estimate accuracy. Even so, very few quantitative methods are available that enable estimators and business managers to objectively evaluate the accuracy of early estimates. The primary objective of this study was to establish such a model. To accomplish this objective, quantitative data were collected from completed construction projects in the process industry. Each of the respondents was asked to assign a one-to-five rating for each of 45 potential drivers of estimate accuracy for a given estimate. The data were analyzed using factor analysis and multivariate regression analysis. The factor analysis was used to group the 45 elements into 11 orthogonal factors. Multivariate regression analysis was performed on the 11 factors to determine a suitable model for predicting estimate accuracy. The resulting model, known as the estimate score procedure, allows the project team to score an estimate and then predict its accuracy based on the estimate score. In addition, a computer software tool, the Estimate Score Program, was developed to automate the estimate score procedure. The multivariate regression analysis identified 5 of the 11 factors that were significant at the α = 10% level. The five factors, in order of significance, were basic process design, team experience and cost information, time allowed to prepare the estimate, site requirements, and bidding and labor climate. 相似文献
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最近距离插值法简称最近距离法,是一种相对简单的空间差值方法,在目前流行的地质资源估算软件中都提供这方面的功能。但是最近距离法因为其固定的缺点,在资源估算实践中并不常用。圈定矿体或岩相域在传统地质建模中一般使用手工圈定,这项工作一般为地质建模和资源估算工作中耗时最长的一个步骤。本文结合南非某大型铂矿项目,探讨使用最近距离法来实现自动圈定岩相域边界,提高工作精度和效率,文中以使用Datamine Studio 软件为例,介绍具体建模步骤,并应用到实际项目,获得了良好效果。 相似文献
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介绍了烧结配料计算软件开发过程,包括烧结工艺数据库的构成,实现烧结数据管理微机化的必要性以及软件设计的具体内容和应用效果。 相似文献
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分析了宝钢圆方坯连铸过程机改造前存在的系统硬件老化、维护成本高,系统软件过时、扩展性不强、通信软件专属、开放性不够、软件功能欠缺、适应性不强等问题,从机型、通信、界面等方面提出了相应的系统改造技术路线。在系统集成设计方面,基于C/S架构,采用PC服务器、WINDOWS SERVER2003操作系统、ORACLE数据库、PLATURE99平台、OPC等技术;在应用功能设计方面,优化了标准管理、命令计划管理、过程跟踪和控制、实绩收集等功能模块;在画面报表设计方面,采用VISUAL STUDIO 2005中的C#和EXCEL软件,对于画面报表进行了全新设计;在模型设计方面,对二次冷却模型、切割优化模型、质量QCS模型进行了创新改进。电炉圆坯连铸机的自主集成改造不仅成功解决了原系统多项历史遗留问题,在过程监控、模型等方面也进行了多项技术创新,为公司节约了数百万元软件开发投资费用。 相似文献
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余浔 《有色冶金设计与研究》2011,32(3):12-16
针对刚果(金)某氧化铜矿的矿石性质和选矿试验研究结果,对选矿厂的碎磨工艺、浸出工艺、逆流洗涤工艺的选择进行了从技术、投资及成本等方面的比较,设计出了适合该矿的选矿工艺流程及设备选型。该项目投产后为开发刚果(金)类似矿山提供了可借鉴的经验。 相似文献
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Described in this paper is a novel approach to four-dimensional (4D) computer-aided design (CAD). It involves a two-way symbiotic relationship between three-dimensional (3D) CAD software and a software implementation of linear planning that includes the ability to define a project product model and associate it with the process model. Strengths of the approach include the ability to readily modify construction sequences and examine their consequences using 4D CAD, and the ability to treat very large scale projects marked by significant repetition of their components. By building on a shared image of the project product model from both a design and construction perspective, the CAD model can be structured in a way that facilitates communication with the scheduling software and vice versa. Various challenges involved in making the 2-way process work are described, including consistency of product representation in the CAD and scheduling models, and the need to group CAD components at different levels of detail and locations to reflect the kinds of aggregation found in schedule representations of a project. The benefits of the approach include the ease with which different scheduling strategies can be explored and visualized, the links between 3D objects and activities can be maintained, and the completeness of the product model representations can be validated. A case study is used to illustrate the approach adopted and the challenges involved. 相似文献
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商洛炼锌厂污水处理系统的设计及生产实践 总被引:1,自引:0,他引:1
介绍商洛炼锌厂10万t/a电锌及配套焙烧烟气制酸项目污水处理系统的设计工艺、主要设备及生产运行的实践情况.本系统自2009年6月与项目建设同时建成,同时投入生产,安全运行至今,未发生重大设备事故和环保事故,可作为项目环境影响评价、环境保护设施设计、竣工环境验收及其污水污染物排放管理的重要依据. 相似文献
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魏巍 《有色冶金设计与研究》2010,31(1):42-44
从污水水质和水量分析、工艺选择及构筑物单体设计等方面,阐述了某县市的污水处理工程设计。该工程采用了改良型氧化沟工艺,经运行实践证明,该工艺具有较强的耐冲击负荷能力、脱氮除磷效果良好、出水水质稳定、投资省、运行维修费用低、节能等优点,出水水质可满足《城镇污水处理厂污染物排放标准》(GB18918-2002)中一级标准的B标准。 相似文献