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.

本转让项目将研究以回收的MgO-C原料为基础的MgO-C耐火材料的应用。使用回收的 MgO-C 原材料可带来经济和生态效益，特别是避免在电弧炉中昂贵地制造 MgO 材料。此外，由于反应已经在高温下在钢/炉渣系统中发生，因此回收材料的反应性较低。因此，预计钢中的夹杂物含量较低。该项目的重点是研究基于不同 MgO-C 耐火材料以及新鲜和回收材料的钢中夹杂物。另一项任务是提高热冲击性能，特别是通过使用纳米级和半导体材料添加物。此外，还将研究与回收原材料和粘合剂的杂质以及 MgO-C 耐火材料中的碳的相互作用，特别是通过钢液中夹杂物的数量。如果添加物对热冲击性能产生积极影响，未来在基于回收原材料的 MgO-C 耐火材料中可以使用更少的“新鲜”粘合剂以及更少的碳。