无钟炉顶
无钟炉顶的相关文献在1987年到2022年内共计165篇,主要集中在冶金工业、工业经济、能源与动力工程
等领域,其中期刊论文109篇、会议论文17篇、专利文献220229篇;相关期刊61种,包括鞍钢技术、宝钢技术、包钢科技等;
相关会议14种,包括2015年全国中小高炉炼铁学术年会、2014年(第十八届)冶金反应工程学术会议暨中国金属学会冶金反应工程分会成立大会、第八届(2011)中国钢铁年会等;无钟炉顶的相关文献由301位作者贡献,包括程树森、滕召杰、吴蔓洁等。
无钟炉顶—发文量
专利文献>
论文:220229篇
占比:99.94%
总计:220355篇
无钟炉顶
-研究学者
- 程树森
- 滕召杰
- 吴蔓洁
- 杜鹏宇
- 张桂荣
- 徐寿华
- 刘云彩
- 张建良
- 徐兆金
- 杜屏
- 王冬青
- 王文聪
- 竺维春
- 陈川
- 高征铠
- 齐树森
- 任廷志
- 兰洪
- 刘东英
- 吴华松
- 周传典
- 周夏芝
- 周强
- 喻道明
- 姜本熹
- 孙建全
- 安云沛
- 张希营
- 张焕臣
- 徐文轩
- 徐矩良
- 朱华
- 朱德贵
- 李维浩
- 李肇毅
- 李超
- 欧治学
- 牛群
- 王振球
- 王新安
- 王牧麒
- 田杰
- 盛正平
- 程文芳
- 窦文山
- 胡伟
- 胡雪萍
- 许思东
- 赵仕清
- 赵军
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姜本熹
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摘要:
普通中心喉管在并罐无钟炉顶大高炉仅有7~12个月的寿命,是威胁炉顶齿轮箱安全生产的一个隐患,它限制了高炉定修周期不能超过6个月.为此,开发了一种长寿型中心喉管,并于2009年11月第一次在武钢5号高炉上应用.最新的MCTG750ⅢA长寿型中心喉管的寿命已经达到30个月以上,而普通重叠瓦片式中心喉管的寿命仅有10个月.经测算,长寿型中心喉管相对于普通中心喉管,每年可降低约134.4万元的费用.
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赵国磊;
孙刘恒;
高成云
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摘要:
1前言随着高炉装备发展至今,无钟式炉顶已成为最主流的装料装置,主要分为串罐式和并罐式无钟炉顶两种,不同设备结构型式会带来布料规律的差异。目前,已有较多侧重于对特定炉顶设备型式下布料规律的研究,关于炉顶设备参数对布料影响研究仍然较少,尤其是无钟炉顶型式的影响。因此,本文基于主流的无钟炉顶,建立了布料过程综合数学模型,并讨论了若干主要设备结构参数对炉料分布的影响,能够有效地指导炉顶设备选型与优化。
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卢瑜;
张明星;
赵华涛;
杜屏
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摘要:
Based on the similarity principle,a 1/6 scale half-section,three-dimensional cold model of the 500 m3blast furnace(BF) without bell furnace top was built to simulate the formation of the burden surface in the blast furnace throat and to analyze the law of the radial burden distribution in the blast furnace under different charging patterns. The results showed that the edge terrace of burden surface was formed when the difference in the weight between the neighbor rings of cokes was great. The wider the edge terrace was,the more ore added to the central funnel zone was,the smaller the mixing layer at the center of the blast furnace was, and the narrower the central air flow of the blast furnace was. Each blast furnace should have an optimum width of mixing layer according to the raw material and equipment of the blast furnace, and the suitable width of the mixing layer was between 15% and 30%. The results also showed that the radial velocity distribution agreed well with the radial distribution of ratio of ore to coke in the edge platform area and the middle area under different charging patterns,while the radial distribution of ratio of ore to coke was small in the area of mixed layer of blast furnace and the influence of the radial distribution of ratio of ore to coke on the radial velocity distribution was not obvious. The influence of the radial particle size distribution on the radial velocity distribution was obvious that the average particle size of burden material was large in the neighbor region of the blast furnace center, so the velocity of gas in the throat was large accordingly;and that the average particle size of burden material in the center of the blast furnace was the smallest,so the velocity of gas in the throat was the smallest correspondingly.%基于相似性原理,建立了按500 m3高炉1:6比例缩小的180°无钟炉顶模型.利用该模型模拟了高炉炉喉料面的形成过程,并分析了不同布料制度下高炉径向料层分布的规律.结果表明,边缘平台是在相邻两档焦炭布料量差距较大时形成的,边缘平台越宽,在中心漏斗区加入矿石越多,高炉中心混合层越小,高炉中心气流环带越窄.各高炉根据原料条件和设备条件应有一个大小最优的混合层,混合层合适的宽度范围为15% ~30%.不同布料制度下边缘平台区域和中间区域的径向气流速度分布和径向矿焦比分布存在比较好的对应关系.而在高炉混合层区域径向矿焦比均较小,此时径向气流速度分布与径向矿焦比关系不明显,但与径向粒度大小的关系较明显.在高炉次中心平均粒度较大,气流速度较大;高炉正中心平均粒度最小,气流速度也最小.
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李海涛;
张建良;
马富涛;
焦克新
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摘要:
In order to study the burden falling point of the two parallel hoppers with bell-less top, based on the bell-free top of 4150m3 blast furnace, a mathematical model was built to analyse the burden movement process. The distribution of the falling point is researched, with increasing the bur-den width by 1m, the chute maximum angle is reduced by 2. 5°. With increasing the stock line height distance by 1m, the drop radius is increased by 0. 83m. With increasing the length of chute by 1m, the drop radius is increased by 0. 83m. By comparing the experimental data with 1:1 burden distribu-tion process, the average error percentage is 2. 93%, which verifies the accuracy of the model and pro-vides the theoretical basis for optimizing the fabric design.%为了研究并罐无钟布料器炉料落点,以4150 m3实际高炉参数为基础,基于炉料运动过程建立模型.通过模型分析得到料流宽度增加1m,则溜槽最大倾角减小2.5°.料线高差增加1m,落点半径增加0.83m.溜槽长度增加1m,落点半径增加0.83m.通过与1:1布料实验数据作对比,得到平均误差百分比为2.93%,验证了模型的准确性,为优化布料设计提供理论依据.
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马财生;
任廷志;
杨二旭
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摘要:
A method is proposed to obtain a stepping ring charging control based on the social emotional optimization algorithm ( SEOA) .The angles of chute inclination and the error of burden surface are selected as the main control parameter and the control objective respectively based on the analysis of the feature of the stepping ring charging.After that, the mathematical model for step-ping ring charging control is established, and SEOA is employed to solve problem. Finally, the control model is applied to a blast furnace which has an effective volume around 2580 m3, the model is verified and its optimal performance is analyzed.Results show that expected burden distribution is achieved accurately after applying this model based on SEOA to the stepping ring charging con-trol, and SEOA has higher accuracy and consumes less calculating time than that of standard genetic algorithm ( SGA) and standard particle swarm optimization ( SPSO) .%为实现无钟高炉布料精准化,建立了基于社会情感优化算法的步进式同心圆布料控制模型.在分析步进式同心圆布料工艺特点的基础上,选取溜槽倾角作为布料控制的主要参数,以料面形状误差为控制目标,建立了步进式同心圆布料优化控制的数学模型,设计了社会情感优化算法进行优化求解.最后将控制模型应用到2580 m3无钟高炉进行验证,并分析了社会情感优化算法解决步进式同心圆布料控制问题的优化性能.计算结果表明:基于社会情感优化算法的步进式同心圆布料控制方法能够准确地实现期望的炉料分布,与标准遗传算法和标准粒子群算法相比,社会情感优化算法在布料控制优化中显示出准确度高和收敛速度快的优点.
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马财生;
任廷志
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摘要:
为提高无钟高炉炉喉料面的预测精度,建立了考虑炉料运动的炉料分布数学模型.在分析炉料运动的基础上,指出了炉料运动是影响炉料堆积过程的重要因素,采用尺寸比1:10的无钟布料器模型试验分析了不同炉料分速度对炉料堆积行为的影响,建立了考虑炉料运动因素的料堆轮廓预测模型,并通过数值方法确定了料堆的位置和料面轮廓曲线,应用于料面形状的预测.结果表明:炉料的运动是造成料堆两侧堆积角差异、料堆横截面面积变化以及料面轮廓改变的重要原因,料堆轮廓采用直线段和曲线相结合的方式进行构造,炉料的堆积角和曲线过渡区域长度作为重要的模型参数均考虑了炉料速度的影响,模型构造的轮廓接近真实料堆形状,应用该模型实现了炉喉料面的准确预测.%In order to improve the accuracy of burden surface prediction in a blast furnace with bell-less top, a mathematical mod-el of burden distribution considering burden motion was established. Based on the analysis of burden motion in the furnace, the burden motion was pointed as an important factor affecting the burden formation, and a 1:10 dimension scale bell-less top distributor model was used to analyze the effect of different burden components' velocity on heap formation. Then a heap formation prediction model con-sidering burden motion was established, the numerical method was employed to determine the heap position and the heap shape, and at last the model was applied to predict the burden surface. Results show that the burden motion is the main reason causing the differ-ence between the heaping angles in both sides of the heap, the variations of area of the heap cross section and heap profile. The heap profile is constructed by lines and curves in the heap formation prediction model, and the important model parameters, including the heaping angles and the length of curved transition area, all take burden motion into account. Thus the profile constructed is close to the actual heap, and the accurate predicted burden surface is achieved after applying this model to burden distribution prediction.
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王挽平
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摘要:
无钟炉顶由于其布料的灵活多样性以及基建投资低,维护方便,炉顶气密性好等优点得到了广泛的应用研究。并罐式无钟炉顶作为无钟炉顶的一种布置形式,也得到了炼铁工作者的一致认可,因其特有的布置形式,其存在布料偏析的缺点,炼铁科研工作者做了大量研究工作并优化提出了四批一倒转双罐四批正反螺旋布料制度,本文针对次装料制度在承钢2500m^3大高炉钒钛冶炼生产中的前后对比效果,为此装料制度的实际应用提供实际经验。
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邱家用;
张建良;
孙辉;
闫炳基;
李峰光;
国宏伟
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摘要:
通过离散元模拟和物理实验相结合的方法研究了并罐式无钟炉顶装料过程中颗粒的流动行为.结果表明:DEM模拟能很好地再现实验结果;料罐内部颗粒间力的分布不均匀,强力链主要分布在料罐下部和斜墙附近;料罐内颗粒流动为偏斜式漏斗流,可分为准呆滞区、流动加速区、两侧墙壁附近的剪切层,料罐内颗粒流动模式影响着颗粒的排放顺序,并进一步影响颗粒的下落轨迹及其在炉内的分布;颗粒流动轨迹受料罐出口闸门开度的影响,为保证稳定布料,应将闸门开度控制在合理的范围内;颗粒堆积过程中,堆尖位置随着料流落点位置而变化,堆尖半径大于落点半径.
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杜鹏宇;
程树森;
滕召杰
- 《2017年全国高炉长寿、开炉停炉封炉及生产指标分析专题研讨会》
| 2017年
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摘要:
对于高炉布料操作,使用现有技术难以准确分析高炉冶炼过程.激光技术作为一种非接触、高精度、快速有效测试手段,越来越被冶金行业重视.结合对多座无钟炉顶高炉布料过程的实际测试,开发了激光在高炉受料罐内料面测量、气密箱的监视、溜槽倾角的测量以及料流轨迹和料面形状的测量方面的应用技术,为激光技术在高炉布料上的应用推广奠定了基础.
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滕召杰;
程树森;
杜鹏宇
- 《2017年全国高炉长寿、开炉停炉封炉及生产指标分析专题研讨会》
| 2017年
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摘要:
颗粒在高炉内的运动包括溜槽内运动及空区运动.炉料在空区的运动过程由溜槽末端的速度决定.因此,正确描述颗粒在溜槽内的运动对高炉精准布料十分重要.描述溜槽内颗粒运动的数学模型已有不少,但已有的数学模型是描述颗粒在溜槽内沿直线运动的一维模型.通过对实际高炉布料过程料流轨迹的监测发现,颗粒在溜槽内的运动并非一维运动,而是三维运动.笔者通过对颗粒在溜槽内的受力分析,建立颗粒运动的三维数学模型,准确计算炉料颗粒的落点,分析空区的料流宽度,分析溜槽长度,溜槽转速以及溜槽倾动距对颗粒三维运动的影响.计算结果与实测数据相吻合.
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王士民;
陈东文;
薛刚;
许亮
- 《2015年全国中小高炉炼铁学术年会》
| 2015年
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摘要:
龙钢公司3号高炉无钟炉顶采用PW布料器,用布料溜槽进行全方位布料。随着PW布料器在龙钢高炉上的应用,必然会遇到齿轮箱水冷氮封系统漏水的现象,通过对齿轮箱水冷氮封系统内部构造的了解,分析齿轮箱内部漏水的原因,从而解决齿轮箱水冷氮封系统向高炉内部漏水的问题,保证高炉正常操作.
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