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PROCESS ANALYSIS FOR HIGH-FREQUENCY INDUCTION FURNACE OF COKE PACKED BED

焦炭填充床高频感应炉工艺分析

基本信息

批准号：
07555537
负责人：
TAKAHASHI Reijiro
金额：
$ 3.07万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555537/
关键词：
Iron scrap High-frequency inductive heating Coke packed bed Wetted area of solid-liquid Melting process Liquid hold up Mathematical model Numerical analysis コ-クス充填層プロセス高周波誘動加熱鋳物銑スクラップ溶解液体ホールドアップ固液接触面積流動伝熱数学的モデル

项目摘要

It was carried out the melting and refining of iron scrap by the inductive heating of coke packed bed under reducing atomosphere. Folloing results were obtained as a summary.(1)Experiments and mathematical modeling were performed with inductive heating of a single cylindrical graphite. (2) Two layr packed bed for iron sphere and coke was heated inductivelly. Results obtained were numerically simulated by a mathematical model. (3) New measuring method of liquid hold-up was developed on the basis of the measurements of electric resistivity in the electrolytical liquid. (4) New method was proposed for examining flow pattern of continuous or discontinuous liiquid flow in packed bed. (5) Measuring method of wetted area on the solid surface was proposed. (6) Wall effect of packed bed could be removed by the lining of hemisphere sheet. (7) Smelting phenomena ofiron scrap was investigated by using the mathematical model of high-frequency induction furnace. Results obtained were reported as several papers. Some new measuring methods such as liquid hold-up, flow pattern and wetted area will be widely applied to another fields because it is novel methods.

采用焦炭填充床在还原气氛下感应加热的方法对废铁屑进行熔炼和精炼。获得以下结果作为总结。（1）对单个圆柱形石墨进行了感应加热实验和数学建模。(2)采用感应加热方式对铁球和焦炭的双层填充床进行加热。通过数学模型对所得结果进行了数值模拟。(3)在测量电解液电阻率的基础上，提出了一种新的含液率测量方法。(4)提出了一种新的检验填充床内连续和间断液流流型的方法。(5)提出了固体表面润湿面积的测量方法。(6)填充床的壁面效应可通过半球形板内衬消除。(7)利用高频感应电炉的数学模型，研究了铁屑的熔炼现象。所获得的结果已在几篇论文中报告。一些新的测量方法，如含液率、流型、润湿面积等，由于其方法新颖，必将在其他领域得到广泛的应用。