以《书能条例》为准则 推动企业节能管理上等升级

国务院颁布的《节约能源管理暂行条例》是做好节能工作的准则,企业节能管理上等升级是节能管理水平提高的标志。只有全面贯彻落实《条例》,企业节能管理上等升级才有保证。 1.制订全省节能管理上等级的目标,指导“升级”活动 企业节能管理上等升级要围绕企业管理升级进行,要以节能管理升级来保证企业管理升级。为了     

武钢达到节能特级标准的年度展望

以企业升级促进节能升级,以节能升级来保证企业升级,这是今后几年企业领导的一个工作方针。分析企业现有条件,制定出切实可行的节能晋等升级规划,是企业能源部门的职责。本文介绍了在这方面开展工作的引子。     

中国铜加工产业转型升级路在何方

经过20年的高速发展,中国铜加工依旧处于全球产业链低端。无论产业转型还是产业升级,其实质是国家产业政策的转型。政府要承担引导作用,强化财产权和知识产权保护,为产业创新创造良好的制度环境。同时,企业要提高核心竞争力,遵从工艺升级→产品升级→功能升级→价值链升级的路径,由价值链低端向高端的攀升,实现产业升级。     

中国铜产业链结构升级效果评价

基于产业链视角研究供给侧改革前后铜产业结构升级情况,构建了反映上游采选业、中游冶炼业和下游压延加工业产业结构升级方向、速率和程度的测算模型,并利用2012-2019年数据进行了测算与对比分析。结果表明:①升级方向。供给侧改革后相较改革前,上游超前系数下降且均小于1,中游超前系数增加且均大于1,而下游超前系数略有增加且基本趋于1,说明中、下游超前发展程度较好。②升级速率。供给侧改革后相较改革前,铜产业矢量夹角值由2.72°下降到2.26°,呈现下降趋势,说明铜产业结构升级速率仍然比较缓慢。③升级程度。供给侧改革后相较改革前,上游产业结构升级高度值下降,而中游和下游升级高度值持续上升,说明升级程度由低级阶段向高级阶段演变,正朝着供给侧改革目标方向发展。研究结果丰富了产业结构升级理论,阐释了铜产业结构升级未来的重点方向,为铜产业政策制定和企业生产决策提供了经验证据。      

MODICON584PLC系统升级方法与技巧

ＭＯＤＩＣＯＮ公司的584ＰＬＣ是80年代初期产品,90年代初被淘汰,与584ＰＬＣ配套使用的200系列Ｉ/Ｏ模块,在1996年底,制造商也已经不再提供维修服务。因此,584ＰＬＣ的升级改造就成为一个迫在眉睫的问题。作为对584ＰＬＣ和200系列模块升级的技术支持,可将584ＰＬＣ升级为984ＰＬＣ,或者584ＰＬＣ保持不变,仅将200系列的模块升级为800系列的模块。本文将介绍这两种方法及技巧。冶金自动化　1998年第4期1　584ＰＬＣ升级为984ＰＬＣ主机升级但原有的200系列模块可保持不变,以后时机成熟,还可升级为Ｑｕａｎｔｕｍ系列ＰＬＣ,目前Ｑｕａｎｔ…     

论湖南有色金属产业的转型升级

分析了湖南有色金属产业近几年来转型升级的现状与取得的成果,提出了目前转型升级中依然存在的问题,并对如何加快转型升级进行了具体的、全面的的探索,认为准确的定位、发达的生产性服务业、合理的产业链、行业的正确引领作用是湖南有色金属产业转型升级成功的关键因素。     

中国有色金属工业年度经济论坛 论坛主题:新常态 新经济 新动能

<正>为了深入研讨当前有色行业的经济发展大势,科学提出有色行业转型升级的趋向和支点,具体梳理转型升级的方向、路径和目标,为全行业描绘转型升级的路线图,推动有色行业转型升级向纵深发展,作为中国有色金属工业协会主管、主办的中央级有色行业权威、知名品牌期刊,2015     

狠抓节能管理升级 推动企业整体升级

1.充分认识节能管理升级在企业升级中的地位,把节能降耗当作关系到企业生死攸关的大事来抓 1986年初,国家经委和冶金部提出并部署了企业升级工作,指出提高产品质量,降低物质消耗是企业升级的两个关键环节,对节能工作相应提出了更高的要求。根据这一新的形势,我们主要从以下二个方面强化节能意识:     

炼钢厂立式连铸机液压站无人化改造

某炼钢厂立式连铸机主液压站控制系统升级,控制系统升级为S7 300PLC系统、操作台升级为应急操作台,升级后系统实现了油箱温度自动控制、供液泵高压泵组一键启停、备用供液泵高压泵组自动投用等功能,实现了液压站无人值守、自动、可靠、稳定运行.     

关于冶金企业升级标准指标体系的探讨

企业升级标准是衡量企业管理水平、评定企业等级的重要尺度。制订好企业升级标准,是保证企业升级工作能够健康发展的关键。冶金部根据上级有关精神,下大力量制订了冶金企业升级标准。总的看,这一标准指导思想明确,考核指标体系科学合理,标准水平先进可行,既符合冶金企业的实际,又体现了国务院有关决定的精神,各方面均给予了好评。但从更加完善这一角度来看,所存在一些问题。本文以有矿山的钢铁联合企业为例,对冶金企业升级标准指标体系的设置进行探讨,意在为进一步修订、完善企业升级标准提供一个思路。     

提高Pb-Zn烧结工艺对原料适应性的生产实践

介绍韶冶通过完善工艺和技术改造，提高Pb-Zn烧结工艺对原料适应性，指出了存在的问题并对处理低价原料提出了设想．     

制氧机膨胀机控制系统PLC改造

介绍了安阳钢铁股份有限公司对2#6000制氧机的膨胀机进行PLC改造的过程、工作原理及改造后使用的效果。     

空分系统自动变负荷先进控制改造简

介绍了张家口紫光气体公司空分系统自动变负荷先进控制系统改造的具体内容,实现了优化控制,降低了空分的能耗。     

辽宁某金矿破磨系统在狭窄空间的工艺设计改造

针对辽宁某金矿选矿工艺生产中存在的生产不稳定,半自磨停产检修太过频繁,耗材以及电耗指标偏高等问题,对选厂现有的破碎-磨矿流程进行工艺技术改造,后续浮选等工艺保持不变。破碎改造方案采用三段两闭路流程,在有限空间,破碎筛分呈多层立体配置,利用空间高差新增了矿石的输送及破碎筛分设备,可以有效地减少厂房用地面积,降低建设投资,非常适用于工业场地有限的选厂。生产实践表明,工艺改造后,选厂的耗材以及电耗指标有明显的降低。选矿厂已于2016年9月正式投产,运行正常。     

铜冶炼烟气生产蓄电池级硫酸技术的应用

介绍了阳谷祥光铜业有限公司150 kt/a蓄电池级精制硫酸生产工艺流程、控制参数、设备选型和超纯水生产工艺等,对产品升级改造过程中及后期实际生产运行中存在的问题进行了分析探讨,重点对酸浓控制与串酸操作、酸温控制及操作及酸质管控措施等进行了阐述。通过不断优化工艺操作及落实改造措施,有效保证了蓄电池级精制硫酸生产系统长周期稳定运行,对其他蓄电池级精制硫酸技术改造提升项目有一定借鉴意义。     

Design of FRP Jackets for Upgrade of Circular Bridge Piers

The upgrading of bridges located in seismic areas and built according to obsolete codes is becoming a priority task for highway administrations. Among the possible upgrading strategies, the use of fiber-reinforced plastic (FRP) jackets is gaining widespread acceptance. In this paper, a design equation is proposed to determine the optimal thickness of FRP jackets, to enhance the ductility of existing reinforced-concrete (RC) bridge piers with circular cross sections. The design procedure stems from the definition of an upgrading index, given as the ratio of the target to availability ductility at the pier base section, to be attained through FRP jacketing. The available ductility is that identified through the usual assessment procedures on the RC member set for upgrade, whereas the target ductility is evaluated based on the expected actions on the bridge. The upgrading index is initially defined in general terms and is subsequently extended to the case of piers built in seismic regions. It results in a simple expression in terms of easily computable quantities, such as the ultimate strain and the peak strength of concrete, before and after upgrading. A parametric study on old-code–designed bridge pier sections, upgraded with either glass or carbon fiber jackets, is performed based on a fiber-section model equipped with a newly developed FRP-confined concrete model. This study shows that the index, despite its simplicity, yields excellent predictions of the ductility increase obtained through FRP wrapping, and it is therefore used to develop a design equation. The equation allows the design of the optimal thickness of FRP jackets in terms of the desired upgrading index, mechanical characteristics of the selected composite material, and quantities defining the initial state of the pier section. The design procedure has been applied to available experimental tests of a scaled bridge pier wrapped with FRP and tested to failure, and it has been demonstrated to be very effective.     

行动学习法在企业人才开发与培养中的创新实践

攀钢集团长特公司在研究分析国内外行动学习培训方法的理论基础上,针对传统培训效果不佳,人才素质与能力不能通过培训有效提升,许多现实问题无法通过培训有效解决等现状,通过探索与实践行动学习法,在增强团队意识、改善心智技能、提高企业绩效等方面取得了显著成效。     

Thermodynamic Consideration of the Removal of Iron from Titanium Ore by Selective Chlorination

Thermodynamic study of the chlorination reactions of oxides such as titanium oxides and iron oxides at elevated temperatures was carried out in order to consider the removal of iron from titanium ore using selective chlorination method. In particular, various chlorination reactions were analyzed by utilizing chemical potential diagrams, and the applicability and usefulness of this thermodynamic study for analyzing the selective chlorination of titanium ore were demonstrated. Furthermore, chlorination reactions using various types of chlorinating agents were discussed from different viewpoints. It was shown that the selective chlorination of iron from titanium ore by HCl gas is thermodynamically feasible and efficient for upgrading titanium ore. Further, thermodynamic analysis showed that under certain conditions, TiCl₄ can be used as a chlorinating agent for the iron in the ore, and iron can be removed by evaporation directly from the ore as chloride gas. The results presented in this study provide useful information for developing a process for upgrading low-grade titanium ore for use as a titanium smelting feed through a dry method.     

Assessment of Highway Bridge Upgrading by Dynamic Testing and Finite-Element Model Updating

The Land Transport Authority of Singapore has a continuing program of highway bridge upgrading for refurbishing and strengthening bridges to allow for increasing vehicle traffic and increasing axle loads. One subject of this program has been a short-span bridge taking a busy main road across a coastal inlet near a major port facility. Experiment-based structural assessments of the bridge were conducted before and after upgrading works including strengthening. Each assessment exercise comprised three separate components: (1) a strain and acceleration monitoring exercise lasting approximately one month; (2) a full-scale dynamic test carried out in a single day without closing the bridge; and (3) a finite-element model updating exercise to identify structural parameters and mechanisms. This paper presents the dynamic testing and the modal analysis used to identify the vibration properties and the quantification of the effectiveness of the upgrading through the subsequent model updating. Before and after upgrade, similar sets of vibration modes were identified, resembling those of an orthotropic plate with relatively weak transverse bending stiffness. Conversion of bearings from nominal simple supports to nominal full fixity was shown via model updating to be the principal cause of natural frequency increases of up to 50%. The utility of the combined experimental and analytical process in direct identification of structural properties has been proven, and the procedure can be applied to other structures and their capacity assessments.     

首钢第二炼钢厂精品线材用坯工艺优化与项目实践

本文介绍了首钢第二炼钢厂精品线材用坯工艺优化项目的生产实践。该项目从铁水预处理出发,通过捞渣机设备改造,转炉底吹系统优化,LF炉精炼渣系控制以及钢包增压系统开发,连铸机二次冷却系统改进及配水曲线优化等一系列措施,提高了钢水的磷、硫控制水平和连铸坯的质量。该项目实施后,通过检测结果得出,钢水的纯净度得到提高,连铸坯表面质量和内部质量稳定,满足精品线材用坯的质量要求,为首钢第二炼钢厂产品结构升级作出了重要贡献。