文档介绍：毕业论文镁碳砖的制备与应用
摘要
镁碳砖是国际上新兴的耐火材料产品,镁碳砖具有高耐火性,良好的抗热震性、抗剥落、抗渣性。它的使用延长了炉衬的使用寿命,是一种广义的新型节能材料,各国都在大力开发镁碳砖生产技术。但是在生产中仍存在易层裂、韧性差等问题。调整镁碳砖配合料颗粒级配、控制混合料湿度与优化压制过程等措施可以提高生产质量。
本文开端探讨了镁碳砖的制备。包括原料的选用,意在着重说明原材料的质量性能对镁碳砖使用效果有较大影响。并介绍了生产工艺流程上主要工艺参数的确定及生产过程中镁碳砖的层裂问题及解决方法。随之重点介绍了镁碳砖在转炉上的应用重点阐述了使用环境对其使用效果的影响。在论文末章介绍了镁碳砖在技术上的发展趋势。
关键词:颗粒级配,转炉,层裂,镁碳砖
PREPARATION AND APPLICATION OF MAGNESIA
ABSTRACT
Magnesia refractories is internationally emerging products, magnesia with a high fire resistance, good thermal shock resistance, spalling, slag resistance. Its use extends the life of the lining, is a broad new energy-saving material, countries are vigorously developing magnesia production technology. However, there are still easily in the production of spallation, and poor toughness. Adjust magnesia batch particle size distribution, humidity control and optimization of mixture pressing process and other measures to improve production quality.
Beginning of this article discusses the preparation of magnesia. Including the selection of raw materials, intended to highlight the quality of the raw materials used magnesia effect on performance have a greater impact. And describes the main process parameters on the production process and the production process to determine the spall magnesia problems and solutions. Bricks along with highlights on the application of the converter focuses on the use of environmental effect of its use. Paper presented at the end of chapter Bricks in technology trends.
KEY WORDS: particle size distribution, converter, spall, magnesia
目录
前言 4
第1章原料的选用 5
镁砂 5
石墨 6
结合剂 7
添加剂 7
第2章镁碳砖制备 8
镁碳砖主要生产工艺参数的确定 8
镁砂颗粒级别的确定 8
泥料混练 9
成型 10
热处理 10
镁碳砖的层裂问题及解决方法 10
镁碳砖层裂产生的主要原因 11
防止镁碳砖层裂的基本方法 11
第3章镁碳砖的应用 13
镁碳砖在转炉上的应用 13
16
MgO-C砖在炉外精炼技术中大有前途 16
第4章镁碳砖技术发展趋势 17
纳米结构基质低碳镁碳砖的开发研究 17
19
结论 21
谢辞 22
参考文献 23
外文资料翻译 25
前言
镁碳砖是一种优质的耐火材料,广泛应用在电炉、转炉及精炼