冶金企业机械人才需求现状与教学改革

针对冶金企业机械人才状况进行了调查并在此基础上对冶金机械专业人才需求的现状进行分析,并围绕人才需求对该专业进行一系列的教学改革的探索.     

干熄焦系统热能平衡诊断测试及其分析

对涟钢干熄焦系统进行热工测试并分析所得到的相关参数,对该系统进行热平衡计算,根据热平衡的结果对干熄焦工艺过程进行技术分析,并提出优化改进建议.     

三峡库区农村美术教育现状调查分析及对策

本文通过设计调查问卷,对三峡库区部分农村中学生进行随机抽样调查,并对调查结果进行整理、统计、分析,总结归纳了当前库区美术教育现状情况,并进行原因分析,提出了几点解决的方法.     

某烧结砖厂隧道窑脱硫除尘系统改造

就某烧结砖厂目前脱硫除尘系统进行了原因剖析,并根据该系统需要改造的内容进行了方案设计,分析了脱硫除尘效率,并对其产生的环境效益、经济效益进行了阐述。     

矿山中GPS测量技术的应用

讨论GPS在矿山测量中坐标转换的各种方法,并结合实例对这些方法进行详细地评述,并对其精度进行科学地分析。     

安钢销售物流管理探讨

介绍了安钢集团销售的情况,并对销售物流进行了简要分析,提出销售物流的优化模式,并对销售物流配送网络的规划设计进行了初步探讨。     

浅论矿山主要设备安全检测在安全生产管理中的作用

按照综合的检测方法.利用较全面的检测手段对矿山在用设备进行安全生产检测,并进行系统的分析,从而及时发现并消除事故隐患,防患于未然,确保矿山企业的安全生产.     

辽宁省工业旅游资源分析与评价研究

在对辽宁省全部工业旅游资源进行全面梳理与划分的基础上,对现状进行分析和总结,并对其优劣势进行评价,旨在促进辽宁省工业旅游的发展,并带动辽宁省经济和文化软实力的进一步提升。     

应用高炉煤气烘炉的实践

介绍了新建焦炉在无焦炉煤气作燃料进行烘炉时,使用高炉煤气烘炉的实践经验,并对高炉煤气烘炉中存在的问题进行分析并提出相应的改进措施     

炼钢连铸调度系统的优化

对天津钢铁集团有限公司炼钢厂工艺流程进行介绍并对现场各重要工艺参数进行分析,针对生产实际情况及特点,根据启发式规则,对生产计划粗调度生成后的设备冲突问题建立设备冲突消解优化模型,以保证及时交货并提高产品产量.经过变换将非线性规划方程转化为标准线性规划模型问题,并通过单纯形法进行求解.利用现场实际采集数据对模型进行验证,经过实际应用,证明了模型的正确性及可行性,优化了生产节奏,提高了产量.     

昆明钢铁公司工业节水技术分析

昆明钢铁公司生产钢铁的吨钢耗新水量远高于国内先进钢铁企业的水平。从昆明钢铁公司的几个排水干道的污染物指标分析说明工业节水的潜力。从节水型工艺技术、节水型供水系统以及高效环保的节水药剂等几方面进行考虑以提高昆明钢铁公司的工业用水循环率和利用率。提出干熄焦技术、干式除尘技术、高炉渣粒化工艺与钢渣滚筒法液态处理工艺三种节水型工艺生产技术;重复用水技术、钢铁生产回用技术、膜法处理工业废水技术、活性炭吸附处理钢铁废水四种节水型供水系统;建议采用环保型“绿色”水处理药剂和多功能型药剂对生产废水进行稳定处理。按照3R原则,依据昆钢自身条件,选择科学合理的节水技术。     

连铸板坯二冷配水换型研究

根据板坯连铸机的特点,建立了不锈钢板坯凝固传热数学模型;分析了工艺参数对结晶器和二冷区铸坯凝固的影响;确立了不锈钢二冷区最佳冷却冶金准则。经过大量计算,总结出二冷水量的计算公式和操作工艺参数图。由本模型计算的二冷各段水量与奥钢联提供的水表值基本接近。     

Impact of Irrigation Management Transfer on Land and Water Productivity and Water Supply in the Gediz Basin, Turkey

In the 1990s, Turkey started a fast transfer program in which a large proportion of government-managed irrigation systems were put into the hands of Water Users’ Associations (WUAs) in a very short space of time. One of the first systems to be handed over was the Gediz Basin. This study aims to set out the effects of the transfer of irrigation management in this basin on water and land productivity and water supply. For this purpose, the indicators of productivity and water supply proposed by the International Water Management Institute have been used to show changes between the pretransfer, transfer, and post-transfer periods. WUA averages for the post-transfer period calculated from the results ranged $2,076–$2,898?ha?1 for output per command area, $2,747–$4,585?ha?1 for output per irrigated area, $0.26–$0.68?m?3 for output per irrigation supply, $0.30–$0.63?m?3 for output per unit water consumed, 0.88–1.49 for relative water supply, and 0.99–1.99 for relative irrigation supply. During the period evaluated by the study, there was a decline in water supply indicators, as against a steady increase in the productivity of water and land use. The basic reason for this decrease in supply is the long-lasting and ongoing drought in the region.     

阿尔及利亚南部某市供水工程设计

阿尔及利亚南部城市某供水工程输水管道横跨撒哈拉沙漠737 km,经过路线地形复杂。管道流态包含重力流和压力流,同时具有长距离、大流量、高扬程的特点。本文介绍了该供水工程中的管道设计,对输水管线进行了正常状态和过渡状态水力计算,有效地保证了供水系统的安全性及可靠性。     

大口径铸铁管爆管原因分析及抢修措施

近年来,全国各地城市及厂矿供水管线频频发生爆管,尤其是大口径铸铁管爆管更为严重。这样不仅增加供水企业的运行成本,更加威胁到居民生活安定及供水管网安全运行,造成水资源的浪费,严重影响工农业生产正常运行。本文针对贵溪冶炼厂近年来的爆管情况,对大口径铸铁供水管爆裂的原因进行简要分析,同时当爆管发生后应组织的紧急抢救措施,期望起到抛砖引玉的作用,与大家共同探讨大口径铸铁管爆管的原因和抢修措施。     

就地补偿在水泵电机上的实践

动力厂给水车间155kW水泵电机进行无功就地补偿的可行性分析及经济效益的研究，对工厂用电如何节能降耗有一定参考价值。     

计量泵投药在云铜给水和污水处理中的运用

分析了云南铜业股份有限公司给水和污水处理的现状及存在的问题,介绍了计量泵在药剂投放过程中的应用实践。     

Isolation of Vibrio cholerae O139 from the drinking water supply during an epidemic of cholera

In mid-1994, the public water supply was investigated in a medium-sized town in south India during an epidemic of cholera due to Vibrio cholerae O139. Vibrio cholerae O139 was isolated from the public water supply including one of the wells supplying the town, the central overhead tank, and domestic taps connected to the public supply. Following chlorination, the organism was no longer isolated from the water supply and the epidemic subsided. This demonstration of V. cholerae O139 in the drinking water supply of a town underlines the need for adequate treatment of the water supply.     

Flexible Irrigation Systems: Concept, Design, and Application

This paper presents the need, value, and concept of flexible irrigation water supply systems that can deliver water with flexibility in frequency, rate, and duration under the control of the farmer at the point of application using a limited rate arranged-demand or other schedule. It introduces the needed terminology including “congestion”—how much reserve time and capacity is required to assure water delivery at the frequency and rate desired. An illustrative design procedure for the necessary pipeline and reservoir capacities is illustrated. The techniques discussed emphasize the conversion of the economical steady supply canal flows to flexible on-farm usage through the use of service area reservoirs located between the secondary and tertiary systems, and of semiclosed pipelines and/or level-top canals as automated distribution systems which facilitates the farmers’ need for daytime only variable on-farm deliveries to permit optimization of on-farm water management. This improved management is the ultimate source of increased food production after improved crop, land, and water resources have reached their maximum. The coordinated use of return flow systems is described.     

广钢净水系统供需矛盾的分析及对策

从设计参数、工艺改变、管理水平和成本等方面分析产生净水供需矛盾的原因 ,用更新观念、改进设备、发挥多水源供水及专业管理的优势彻底解决了矛盾