敞开式焙烧炉能耗水平和产品质量影响因素分析

能耗水平和产品质量是衡量敞开式焙烧炉技术水平的主要两个技术指标,能耗水平和产品质量指标均会受焙烧炉炉体结构设计、燃控系统控制策略、运行过程工艺运行参数和管理的影响,基于焙烧炉热平衡分析计算、焙烧实验室研究以及焙烧炉的全息仿真模拟研究结果,开展敞开式焙烧炉炉能耗水平和产品质量影响。因素的研究,其结果用于优化焙烧炉炉体结构设计和工艺参数的控制。     

敞开式阳极焙烧炉热工过程的模拟与优化

建立了敞开式阳极焙烧炉热工过程的数学模型，该模型用于预测焙烧炉的热力行为是满意的。同时对不同的操作参数进行了模拟优化，结果表明，火焰循环时间的降低将导致能耗的增加，而降低空气渗漏和进气量会极大地降低能耗。该模型对于焙烧炉的设计运行具有直接的指导意义。     

大型敞开式焙烧炉的热平衡测试与分析

大型化,节能化是焙烧炉的发展趋势,为了研究大型阳极焙烧炉的热工特性,了解焙烧炉实际运行状况,需要对其进行全面的热平衡测试。重点介绍了焙烧炉热平衡测试平台、热收入项和热支出项的计算方法。结合国内某铝厂大型敞开式焙烧炉的热平衡测试与分析,得到各个具体的生产运行参数,这对评价操作参数的合理性,提升大型敞开式焙烧炉的设计水平和工艺操作水平都具有指导意义。     

敞开式阳极焙烧炉发展方向展望

本文对敞开式阳极焙烧炉在我国的发展历史和现状作了较详细的回顾和介绍。全面分析了敞开式阳极焙烧炉目前存在的诸如：结构整体性较差、热耗较大、炉子使用寿命较短、使用后期产品质量不稳定等共性问题。就此提出了炉子设计方面的改进方向，并对炉子需要改进的具体结构、新材料选用、以及今后应进行的理论研究和试验内容等。作了较为详细的描述。对于确定今后我国敞开式阳极焙烧炉技术进步和开发研究的方向具有一定的借鉴作用。     

阳极焙烧炉的热工测试及分析

介绍了敞开式环型焙烧炉的综合性测试工作，并且对焙烧炉物料平衡计算和热平衡计算的结果进行了分析，提出了优化措施。本实验研究填补了国内焙烧炉综合测试工作的空白，为焙烧炉的设计优化提供了可靠的依据。     

阳极焙烧炉热工测试方法研究

介绍了敞开式环型焙烧炉的热工测试过程。研究了焙烧炉热工参数和工艺参数的测试方法。着重分析了重油流量、火道燃烧产物浓度分布与加热区填充焦损耗质量等热工参数的测量方法。为阳极焙烧炉的热工测试提供了具体的实践指导,为焙烧炉的热平衡计算提供了可靠的依据。     

敞开式环式焙烧炉焙烧电极和化学板获得成功

在华主席抓纲治国伟大战略方针指引下,根据冶金部的指示,郑州铝厂于1977年12月上旬至1978年1月中旬,会同有关单位在我国第一台30室90箱敞开式环式焙烧炉上,首次进行了电极和化学板的焙烧试验,取得成功。试验结果证明,敞开式焙烧炉的结构基本上是合理的,选用的焙烧曲线是适宜的。焙烧出的电极和化学板     

消除敞开式阳极焙烧炉浸雨隐患的处理方法

针对砌筑过程中受雨水浸湿后的敞开式阳极焙烧炉,给出启动烘炉前必须采取的特殊处理方法。经实践证明,此方法能够消除可能造成的焙烧炉质量问题。     

阳极焙烧炉能耗的影响因素

全面分析了工艺操作、焙烧炉设计以及其它有关因素对焙烧炉能耗的影响,指出了当前国内对焙烧炉能耗影响因素认识上存在的误区,对国内今后阳极焙烧炉的设计优化和操作具有借鉴和指导意义。     

用敞开式阳极焙烧炉焙烧阴极炭块的技术尝试

介绍了利用新型立装敞开式阳极焙烧炉焙烧阴极炭块的相关技术.在实际生产过程中,经过焙烧曲线优化和加强炉面燃烧管理,改进装炉质量等措施,利用阳极焙烧炉是可以生产出性能指标与外观质量合格的阴极焙烧块.其经济技术指标优于阳极焙烧块,与带盖有火井式阴极焙烧炉生产相当.     

液压机液压系统节能技术探讨

本文分析了液压机能源消耗的诸多因素,提出液压机运动能耗的概念和节能方案,并首次提出气液缸和二次调节技术两个能量回收技术方案,是液压机节能技术的新突破。     

Unit process energy consumption models for material removal processes

Economical, environmental and legislative drivers have recently raised the awareness of energy consumption and the associated environmental impact of manufacturing processes. A reliable prediction of unit process energy consumption will enable industry to develop potential energy saving strategies during product design and process planning stages. This paper presents an empirical model to characterize the relationship between energy consumption and process variables for material removal processes. The methodology has been tested and validated on a number of turning and milling machine tools. The model presented predicts the energy consumption of manufacturing processes with an accuracy of more than 90%.     

小型转炉负能炼钢的实践

从降低能源介质的消耗和提高回收二次能源入手，诸如转炉煤气实现自产自用，富余煤气并入管网；提高蒸汽利用水平；加快钢包周转；优化氧枪参数；实现转炉污水循环利用等方面，对莱钢转炉工序能源介质的现状进行了分析；论述了降低能源消耗、最大限度循环再利用二次能源、降低生产成本和减少环境污染等情况。     

车间能耗实时监测系统的研究与设计

为了提高车间能耗的监测与管理水平,从远程监测管理角度出发,定义具有拓展性的车间设备组网协议,设计一种车间能耗实时监测系统,以此监测管理车间实时能耗情况,为车间能量效率评估和车间设备维护、升级、改造提供准确数据支持。该系统已实际应用于数控加工车间的能耗监测,实际应用表明:该系统能实时监测车间能耗情况,数据传输实时性强、稳定性好,增强了企业对车间能耗的管控。     

Ti-6Al-4V合金双半球结构脉冲电流辅助超塑成形

针对Ti-6Al-4V合金板材超塑成形能耗高、效率低的问题,提出了一种脉冲电流辅助超塑成形工艺。该工艺将成形坯料直接串联到脉冲电流回路,利用脉冲电流迅速将坯料加热至超塑成形温度。通过脉冲电流加热实验,分析了平均脉冲电流密度对坯料温度及升温速率的影响。结果表明,采用该加热方式可将坯料加热时间从数十分钟缩短至几十秒,能量消耗降至传统工艺的20%左右,极大地提高了加热效率、降低了能耗,实现了节能环保的绿色超塑成形技术。利用该工艺成形了Ti-6Al-4V合金双半球结构,并分析了在脉冲电流辅助工艺条件下细晶态Ti-6Al-4V合金的超塑变形机制。     

铝箔成品退火实现节能降耗的探讨与实践

结合我公司清洁生产中节能降耗方面的要求,对铝箔成品退火工序的主要耗电因素进行分析。通过试验,验证了吹洗量是铝箔成品退火过程中的最大耗电因素,总结了成品退火节能降耗的方法。     

A technical note cupola efficiency improvement by increasing air blast temperature

Cupola efficiency has always been connected with foundry improvement and development. One of these important improvements has been the introduction of pre-heated air for coal coke combustion. The main purpose of this study is to evaluate the results obtained when increasing its temperature: energy savings in terms of coke consumption, production capacity growth and silicon losses. Nevertheless, this energy savings cannot be realised without some technical limitations concerning different material characteristics. In addition, costs should be considered in order to achieve the adequate balance between efficiency improvement and cost savings. This analysis has also been carried out and shown in this paper. Results presented in this work helped to reduce the coke consumption by approximately 5%, resulting in considerable cost savings. Also, temperatures ranging 600–700 °C have never been used before, in order to recover the energy contained in the exhaust gases.     

试论我国工业炉能源技术的现状和燃气加热热处理技术发展前景

本文纵观了我国工业炉的技术现状,概述了我国热处理的能耗水平和能源结构,从我国天然气资源开发前景展望了燃气加热热处理技术的发展。     

转炉一次除尘3^#风机高压变频改造

针对某转炉一次除尘3^#风机存在能耗大、故障多等问题,采用高压变频器调速技术对风机进行改造。实践证明,应用高压变频器调速替代液力耦合器调速后,在节能、环保等方面取得了较好的技术与经济效果。     

A discrete-event simulation approach to predict power consumption in machining processes

Whereas in the past the sustainable use of resources and the reduction of waste have mainly been looked at from an ecological point of view, resource efficiency recently becomes more and more an issue of cost saving as well. In manufacturing engineering especially the reduction of power consumption of machine tools and production facilities is in the focus of industry, politics and research. Before power consumption in machining processes can be reduced it is necessary to quantify the amount of energy needed, to identify energy consumers and to determine the available degrees of freedom for an optimization. Simulation can be an adequate alternative to the measurement of power consumption during machining operation. However, many of the available simulation methods are not suitable for this task. This paper describes an approach based on the discrete-event simulation, which is known mainly from the simulation of logistical systems. It has been adapted to model machining operations and to generate workpiece-specific power consumption profiles and energy footprints. Two-axis turning in a CNC machining centre is shown exemplary. The aim is to provide a basis for further applications such as the simulation, comparison and optimization of power consumption in process chains and production systems in combination with logistical models.