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Development of permeability control technology for soften and molden packed bed in blast furnace using 3D modeling

Research Project

Project/Area Number 19K15331
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 26060:Metals production and resources production-related
Research InstitutionTohoku University

Principal Investigator

Ishihara Shingo  東北大学, 多元物質科学研究所, 助教 (40760301)

Project Period (FY) 2021-03-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords高炉 / シミュレーション / ADEM / SPH / 鉱石 / 相変化 / 粉化 / 軟化溶融 / 三次元造形 / 通気性 / 粒子法 / 軟化 / 溶融 / 3Dプリント / 融着帯
Outline of Research at the Start

高炉製鉄における安定で高効率な操業のためには、炉内の温度分布を支配する通気性の制御が最も重要であり、粒子軟化溶融による通気性への影響の予測・制御を可能にする革新的プロセス技術を開発する。鉄鉱石、コークスからなる高炉内粒子充填層のモデルを三次元造形(3Dプリンタ)し、高温ガス流通時の圧力損失変化の測定から、軟化溶融時に一定の通気性を維持するための非軟化粒子の配置や構造、配合比を明らかにする。シミュレーションで得られる軟化溶融時の構造をそのまま三次元造形することで、実験と計算の精緻な比較が可能になり、実験では計測困難な充填層全体の構造および流路の変化過程を明らかにする。

Outline of Final Research Achievements

For stable and efficient operation of the blast furnace process, we have developed a simulation model to analyze the particle behavior with softening and melting that affects the gas flow in the furnace. ADEM (Advanced Discrete Element Method) was used to represent the solid state and softening process, and SPH (Smoothed Particle Hydrodynamics) was used to represent the melt. The coupling model was developed. The model was validated by experimentally observing the melting behavior of a single ore and reproducing the behavior by simulation. The model enables us to analyze the structural change of the packing layer under high-temperature loading.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発したADEM-SPHカップリングモデルを用いることで、軟化・溶融を伴う複雑な粒子挙動の解析が可能となり、炉内融着帯近傍での充填層構造変化や閉塞現象の予測によって、高炉プロセスの安定化、省エネルギー化に繋がることが予想される。莫大なエネルギーを消費している鉄鋼業の高効率化は、エネルギー削減による持続可能な社会の創成へ貢献するだけでなく、二酸化炭素排出量の削減による地球環境問題の解決にも寄与することが考えられる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2019 Annual Research Report
  • Research Products

    (8 results)

All 2023 2022 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results)

  • [Journal Article] Effect of particle packing structure on the elastic modulus of wet powder compacts analyzed by persistent homology2023

    • Author(s)
      Ishihara Shingo、Franks George、Kano Junya
    • Journal Title

      Advanced Powder Technology

      Volume: 34 Issue: 1 Pages: 103874-103874

    • DOI

      10.1016/j.apt.2022.103874

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Analysis of the formation mechanism of coarse-dense structure of silver paste in die bonding2021

    • Author(s)
      Ishihara Shingo、Takemasa Tetsu、Suganuma Katsuaki、Kano Junya
    • Journal Title

      Advanced Powder Technology

      Volume: 32 Issue: 6 Pages: 2020-2028

    • DOI

      10.1016/j.apt.2021.04.016

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prediction of softening behavior of simulant sinter ore by ADEM-SPH model2020

    • Author(s)
      Shingo Ishihara, Ko-ichiro Ohno, Hirokazu Konishi, Takashi Watanabe, Shungo Natsui, Hiroshi Nogami, Junya Kano
    • Journal Title

      ISIJ International

      Volume: 60

    • NAID

      130007876836

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of ADEM-SPH coupling model for analysis of solid to liquid transition behaviors2020

    • Author(s)
      Shingo Ishihara, Junya Kano
    • Journal Title

      ISIJ International

      Volume: 60

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] ADEMによるペレット軟化変形挙動の解析2022

    • Author(s)
      石原真吾、田中將己、加納純也
    • Organizer
      日本鉄鋼協会第184回秋季講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 粒子法シミュレーションによる粉砕および溶融挙動のモデリング2019

    • Author(s)
      石原真吾、加納純也
    • Organizer
      資源・素材2019 秋季大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Modeling and simulation of breakage behavior using particle simulation2019

    • Author(s)
      Shingo Ishihara
    • Organizer
      2nd International Symposium on Decommissioning and Management
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 粉体プロセス高度化に向けた粒子法モデリング2019

    • Author(s)
      石原真吾
    • Organizer
      第7回アライアンス若手研究交流会
    • Related Report
      2019 Annual Research Report
    • Invited

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Published: 2019-04-18   Modified: 2024-12-25  

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