小型采暖热风炉设计研究

对小型采暖热风炉设计过程和热效率进行了分析和研究.文中主要论述了热风炉设计的意义,设计方法及工作原理,并对热风炉结构的合理优化与燃料选择等内容进行了阐述.     

高炉热风炉应用高发射率覆层的热效率诊断及节能效果分析

针对热风炉蓄热体高发射率节能覆层在山东石横特钢集团有限公司1 080 m3高炉两座热风炉上的应用,在同一高炉上已经应用和未应用覆层的热风炉进行了节能热诊断测试和热工过程定量分析和比较,对3#热风炉(无覆层)和1#热风炉(有覆层)的热量流向和热效率及热能分布情况进行了定量诊断.诊断结果表明,应用高发射率覆层的热风炉其热风温度升高25℃,废气温度降低13℃,热效率提高了5%.     

对重钢3^#高炉计算机控制系统的初步分析

１９９８年１月,重钢３＾＃高炉大修后,对高炉、热风炉和炉后使用计算机控制,并引进美国ＩＮＴＥＲ公司开发的ＰＡＲＡ５００工控软件,使操作更方便、准确,为以后的模型控制打下了坚实的基础。就重钢３＾＃高炉的计算机控制系统从工艺的角度给予初步分析。     

热风炉大中修后波纹补偿器损坏原因调查

大型高炉长时间服役后逐渐进入大中修周期,热风炉系统同步进入检修状态。但复产后热风炉系统各部分之间的状态不同,容易导致热风总管与热风炉之间波纹补偿器寿命变短[1]。马鞍山钢铁股份有限公司炼铁总厂A号高炉于2017年底进行中修,热风炉系统主要更换热风总管内部耐材与四座热风炉之间联接波纹补偿器耐材。复产后,波纹补偿器寿命异常短暂。通过对更换下来的波纹补偿器内部耐材拆解研究,对波纹补偿器损坏原因进行调查。     

对重钢3~#高炉计算机控制系统的初步分析

1998年1月,重钢3＃高炉大修后,对高炉、热风炉和炉后使用计算机控制,并引进美国INTER公司开发的PARA500工控软件,使操作更方便、准确,为以后的模型控制打下了坚实的基础．就重钢3＃高炉的计算机控制系统从工艺的角度给予初步分析．     

蓄热式热风炉操作制度的研究

应用二维非稳态热量传输方程,对高炉热风炉蓄热室内格子砖与气体之间的对流和辐射传热,以及蓄热体内部的导热过程进行求解,分析热风炉的不同操作制度对热效率的影响.     

某高炉系统热风炉倾斜地基加固处理

由于地基变形、基础断裂，导致某高炉系统热风炉顶点偏移７５４ｍｍ，形成濒于倒塌的危险状态。在不停产的条件下，采用旋喷桩加锚筋的方法，加固处理热风炉地基，取得了良好效果，本文介绍了加固处理的技术分析、施工要点与经验体会。     

热风炉蓄热室温度场热态模拟

在理论计算的基础上,依据相似原理建立了内燃式热风炉热态实验模型,采用计算机实时检测系统直接测定了蓄热室内的温度场分布状况,并将实验结果与理论计算结果进行了分析比较。     

热风炉阀声振耦合有限元分析

为了减小热风炉阀在运行时噪音对周围居民的影响,运用有限元分析软件ANSYS对某热风炉阀结构及周围声场进行分析.在流体运动管道声场、小孔喷注消音等相关理论基础上,建立了结构、流体、声场有限元模型.通过建模、划分网格、加载、求解以及后处理等步骤,对该阀体及附近区域流体进行声振耦合计算分析.结果表明：带孔板结构在孔径为4 mm时,厚度为20 mm时,该阀体的结构形式的消音效果比到较理想,能为热风炉阀减噪设计提供一定的参考依据.     

卡鲁金顶燃式热风炉的流场结构及组分混合特性

建立了卡鲁金顶燃式热风炉燃烧器内空、煤气流动混合过程的物理数学模型,通过模型实验和数值模拟研究了热风炉内的流场和组分混合特性,揭示空、煤气单吹情况下喷嘴中的流量均匀性以及格子砖对燃烧器出口气流的影响机理及规律,为燃烧器的设计和改造提出了建议。     

列管换热器经济性理论分析

列管换热器是干燥热风炉常用的换热器型式,为了探究降低高温大容量热风炉用换热器投资成本的途径,使用平均对数温差法(LMTD法)计算列管换热器在空气升高不同温度时的换热面积,绘制了空气升高温度差Δt=t2-t1与平均换热面积F/(t2-t1)的换热曲线。经分析得到列管换热器的经济温度区域,这种经济性分析法可以应用于高温大容量热风炉两级换热器的设计和选型。     

Study of a ceramic burner for shaftless stoves

A multi-burner-port annular flameless ceramic burner (MAFCB) of the shaftless stove for blast furnaces was designed.The characteristics of pressure drop, homogeneousness of the flows at burner ports, and distribution of the flows in the chambers and joint were studied by cold model experiments.This type of ceramic burner was successfully applied in 6# blast furnace at Liuzhou Iron & Steel Co.Ltd.(LISC) and this practice proved that it could be used in the hot blast stove and other stoves with a higher effi-ciency and a higher steadiness of hot blast temperature at 1200℃.With the combustion of blast furnace gas alone, the thermal effi- ciency was up to 78.95%, saving energy remarkably.     

Numerical calculation of flow and heat transfer process in the new-type external combustion swirl-flowing hot stove

It is clarified that the important method to improve the blast temperature of the small and the middle blast furnaces whose production is about two-thirds of total sum of China from 1000℃ to 1250-1300℃ is to preheat both their combustion-supporting air and coal gas. The air temperature of blast furnaces can be reached to 1250-1300℃ by burning single blast furnace coal gas if high speed burner is applied to blast furnaces and new-type external combustion swirl-flowing hot stove is used to preheat their combustion-supporting air. The computational results of the flow and heat transfer processions in the hot stove prove that the surface of the bed of the thermal storage balls there have not eccentric flow and the flow field and temperature field distribution is even. The computational results of the blast temperature distribution are similar to those determination experiment data. The numerical results also provide references for developing and designing the new-type external combustion swirl-flowing ho     

Resistance characteristics of the ball packed-bed regenerator of the new-type swirl flow hot blast stove

A renovation project of miniaturization and high efficiency is provided for the hot blast stove .The experimental data tested feasibility of the new-type swirl flow hot blast stove. The normal and hot state experiments have been done through changing the angle of gas entering into the regenerator. Factors influencing pressure drop have been studied and analyzed. The experimental results can be formulated in the form of the Ergun equation. The regression equation is obtained. And two modified coefficients are offered to the regenerator pressure drop of the new-type swirl flow hot blast stove.     

高效燃煤热管热风炉设计

分析了目前产生热风的几种方法的一些问题，介绍了一种新型高效燃煤炉热管热风炉的结构和性能特点，并给出了这风炉设计要点。     

Optimum design and layout of the cooling apparatus for long compaignship blast furnace

Generally, the cooler life can determine the blast furnace life. The slag-metal skull frozen on the cooler can separate the cooler from the hot gas flow in blast furnace. The key problem is how to freeze liquid slag-metal on the cooler, and the main measure is to decrease the hot surface temperature of the cooler. The computational technology of heat transfer was practically used for long campaign blast furnace design. The optimum design of the cast iron stave, copper stave, plate-stave combined system and flange stave was given by the computing results. According to the results, the optimum arrangement of different coolers (cast iron or copper     

关于理论燃烧温度的计算

本文根据理论燃烧温度的定义,以高炉风口区燃烧一公斤碳素和以一立方米鼓风作为计算基准,推导出理论燃烧温度的两种计算公式。与按冶炼每吨生铁作计算基准的理论燃烧温度算式相比较,它们更为简便明了实用,计算结果更为准确。这两种计算式更适用于喷吹煤粉高炉的风口区域理论燃烧温度的计算。本文还提出了一些相关的计算公式,如鼓风含氧量的计算等,修正了某些错误的观点及计算。     

热风炉蓄热室内传热过程计算

应用三维非稳态热量传输方程 ,对高炉热风炉在燃烧过程中蓄热室内格子砖与气体之间的对流和辐射传热 ,以及格子砖内部的导热过程进行了耦合求解 得到了在燃烧期内格子砖及燃烧过程中燃烧废气的温度分布情况及其随时间的变化规律