共查询到18条相似文献,搜索用时 93 毫秒
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本研究在分析以大型板材钢厂为评价对象,由71位专家获得的新一代钢厂精准设计评价指标体系权重值的基础上,采用加权算术平均(WAMM)的方法得到了指标的综合权重值。对综合权重值的分析表明在综合类指标中,经济投资水平指标的权重值最大,流程运行高效化和生态化水平指标的权重值较小。在经济投资类指标中,投资收益率指标的权重明显高于其他指标;在工艺设备类指标中,总体上高炉和转炉指标权重值最大;在流程运行类指标中,界面匹配运行参数指标权重值略高于流程运行时间;在生态化类指标中,源头技术指标权重值明显大于其他指标。 相似文献
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讨论了新一代钢厂副产煤气平衡与利用方案,分析了新一代钢厂与发电、建材、石化等行业形成工业生态链的途径.研究表明:年产粗钢900万t的新一代钢厂,通过钢厂副产煤气的充分利用并集成到发电上来,可建设装机容量约90万kW的电站,实现电力自给,充分发挥钢厂能源转换功能;通过冶金渣再资源化利用,建设年产水泥约350万t、水泥微粉约80万t的生产线,与建材行业链接;并有可能外供氢气约6.6亿m3/a,与石化行业形成生态产业链或作为清洁汽车燃料,从而实现生态化转型,适应和促进中国循环经济的发展. 相似文献
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本文根据城市生态学的基本原理和生态建筑的“人,建筑,自然”三者和谐统一的设计思想,提出了居住区生态适宜性评价指标体系的建立和评价方法,对海阳新村东区工程建设的生态适宜性进行了评价,并提出了相应的环保对策。 相似文献
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近年来,世界电炉钢产量及其占产钢总量比例(电炉钢比)迅速增长,1950年世界电钢比为7.3%,到2005年世界电炉钢比为33.4%,其中美国为56%,日本为25.5%,欧盟25国为38.3%。这是和电炉短流程钢厂 相似文献
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企业经营业绩评价指标体系能客观地评价企业经营活动,它有助于企业修正战略目标和改善经营管理策略。以平衡计分卡为理论基础,论述建立企业业绩评价指标体系的基本思路和方法。并根据冶金企业的特点,提出增加环保和社会责任两类评价指标;论述建立冶金企业指标体系的可行性、基本思路、指标类型划分原则及实施的具体步骤;指出非财务指标量化问题和数据处理等在实际操作中可能出现的问题。 相似文献
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介绍了钢铁厂几种制氢方法的比较和选取,分析了各种制氢方法的特点和适用范围,提出工程设计中应考虑的一些因素来选择制氢方案,并提出最佳制氢方案。 相似文献
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Sulfur flow for new generation steel manufacturing process is analyzed by the method of material flow analysis, and measures for SO2 emission reduction are put forward as assessment and target intervention of the results. The results of sulfur flow analysis indicate that 90 % of sulfur comes from fuels. Sulfur finally discharges from the steel manufacturing route in various steps, and the main point is BF and BOF slag desulfurization. In sintering process, the sulfur is removed by gasification, and sintering process is the main source of SO2 emission. The sulfur content of coke oven gas (COG) is an important factor affecting SO2 emission. Therefore, SO2 emission reduction should be started from the optimization and integration of steel manufacturing route, sulfur burden should be reduced through energy saving and consumption reduction, and the sulfur content of fuel should be controlled. At the same time, BF and BOF slag desulfurization should be optimized further and coke oven gas and sintering exhausted gas desulfurization should be adopted for SO2 emission reduction and reuse of resource, to achieve harmonic coordination of economic, social, and environmental effects for sustainable development. 相似文献
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新一代钢铁材料研究的进展 总被引:7,自引:0,他引:7
介绍了日本、韩国、欧洲和国内近年来在新一代钢铁材料方面的研究进展情况,并对日本在800MPa超细晶粒钢、1500MPa超高强度钢、耐热钢、耐腐蚀钢等的研究成果和将来的研究项目进行了详细介绍。 相似文献
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New Development of Acid Regeneration in Steel Pickling Plants 总被引:1,自引:0,他引:1
W F Kladnig 《钢铁研究学报(英文版)》2008,15(4):1-0
For acid pickling heat treated mild steel and steel products, up to the middle of the last century, sulfuric acid was primarily in use, which has been replaced stepwise by hydrochloric acid since the sixties. During this time, the pickling of high alloyed steel with hydrofluoric acid or mixtures for hydrofluoric acid together with nitric acid has also been applied on industrial scale. The technologies used by several plant contractors hereby show considerable differences in their engineering. The study provides a survey of the progress in the state of art of regeneration technology as well as the use of different pickl.ing media in the form of a review on existing technologies as well as improvements done within the recent years in the area. 相似文献
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