Functionalisation of MgO-C refractories based on recycled raw materails and their impact on steel cleanless

基于再生原料的MgO-C耐火材料功能化及其对钢铁洁净化的影响

• 批准号: 437121912
• 负责人: Professor Dr.-Ing. Christos G. Aneziris
• 金额: --
• 依托单位: Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG
• 依托单位国家: 德国
• 项目类别: Research Grants (Transfer Project)
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/437121912?language=en
• 关键词: Functionalisation; MgO; refractories; based; recycled

In this transfer project the application of MgO-C refractories based on recycled MgO-C raw materials will be investigated. The use of recycled MgO-C raw materials offers economial as well as ecological benefits especially by avoiding the expensive fabrication of MgO materials in an arc furncace. Further, the recycled material will be less reactive due to the fact that reactions have already taken place in the steel/slag-system at elevated temperatures. As a result, a lower amount of inclusions in steel is expected.The focus of the project is dealing with the investigation of inclusions in the steel based on different MgO-C refractories with fresh and recycled materials. Another task is the improvement of the thermal shock performance and especially by using nanoscalic and semiconducting material additions. Also the interactions with the impurities of the recycled raw material and the binder as well as the carbon of the MgO-C refractories will be investigated especially in means of the population of inclusions in the steel melt. In case of a positive impact of the additions according to the thermal shock performance less „fresh“ binder as well less carbon could be used in the future in MgO-C refractories based on recycled raw materials.

本转移项目将研究以回收镁碳质原料为基础的镁碳质耐火材料的应用。使用回收的MgO-C原料提供了经济和生态效益，特别是通过避免在电弧炉中昂贵地制造MgO材料。此外，由于反应已经在钢/炉渣系统中在升高的温度下发生的事实，再循环材料的反应性将较低。因此，钢中夹杂物的含量预计会降低。该项目的重点是基于不同的MgO-C耐火材料和新材料以及回收材料，对钢中夹杂物进行调查。另一个任务是改善热冲击性能，特别是通过使用纳米级和半导体材料添加。此外，还将研究与回收原料和粘结剂的杂质以及MgO-C耐火材料的碳的相互作用，特别是在钢熔体中夹杂物的群体。在根据热冲击性能的添加物的积极影响的情况下，未来可以在基于回收原材料的MgO-C耐火材料中使用更少的“新鲜”粘合剂以及更少的碳。