Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fire clay for masonry of magnesia carbon bricks at movable bottom of converter
The invention provides fire clay for masonry of magnesia carbon bricks at the bottom of a converter, and belongs to the technical field of masonry construction of converter lining refractory materials. The fire clay contains magnesia powder and resin, the particle size of the magnesia powder is not larger than 0.5 mm, the resin contains thermosetting resin and thermoplastic resin, and the mass ratio of the thermosetting resin to the thermoplastic resin in the resin is 0.2-5. The appropriate magnesia particle size is selected, so that the stable thickness can be kept during fire clay smearing, and the thermal expansion coefficient of the magnesia carbon brick is absorbed; the two resins are matched for use, so that the problem of heated foaming caused by independent use of thermoplastic resin and the problem of influence on masonry due to high curing speed caused by independent use of thermosetting resin are solved. The furnace bottom magnesia carbon bricks are carbonized by heated resin to form a carbon chain structure in the converter steelmaking process by adopting fire clay masonry, so that expansion of the magnesia carbon bricks is absorbed, the furnace bottom magnesia carbon bricks form a firmly combined whole, accidents such as loosening and brick drawing of the furnace bottom magnesia carbon bricks are prevented, safe use of the converter bottom is guaranteed, and the service life of the converter bottom is prolonged.
本发明提供了一种转炉活炉底镁碳砖砌筑用火泥，属于转炉炉衬耐火材料砌筑施工技术领域。该火泥含有镁砂粉和树脂，所述镁砂粉的粒度不大于0.5mm，所述树脂含有热固性树脂和热塑性树脂，所述树脂中热固性树脂和热塑性树脂的质量比为0.2～5。本发明选择适宜的镁砂粒度可使火泥涂抹时保持稳定的厚度，以吸收镁碳砖受热膨胀系数；两种树脂配合使用解决了单独使用热塑性树脂的受热发泡问题和单独使用热固性树脂固化速度快影响砌筑的问题。采用火泥砌筑使炉底镁碳砖在转炉炼钢过程受热树脂碳化形成碳链结构，既吸收了镁碳砖膨胀又使炉底镁碳砖形成牢固结合的整体，防止了炉底镁碳砖的松动和抽砖等事故，有利于保证转炉炉底的安全使用并延长使用寿命。
Fire clay for masonry of magnesia carbon bricks at movable bottom of converter
The invention provides fire clay for masonry of magnesia carbon bricks at the bottom of a converter, and belongs to the technical field of masonry construction of converter lining refractory materials. The fire clay contains magnesia powder and resin, the particle size of the magnesia powder is not larger than 0.5 mm, the resin contains thermosetting resin and thermoplastic resin, and the mass ratio of the thermosetting resin to the thermoplastic resin in the resin is 0.2-5. The appropriate magnesia particle size is selected, so that the stable thickness can be kept during fire clay smearing, and the thermal expansion coefficient of the magnesia carbon brick is absorbed; the two resins are matched for use, so that the problem of heated foaming caused by independent use of thermoplastic resin and the problem of influence on masonry due to high curing speed caused by independent use of thermosetting resin are solved. The furnace bottom magnesia carbon bricks are carbonized by heated resin to form a carbon chain structure in the converter steelmaking process by adopting fire clay masonry, so that expansion of the magnesia carbon bricks is absorbed, the furnace bottom magnesia carbon bricks form a firmly combined whole, accidents such as loosening and brick drawing of the furnace bottom magnesia carbon bricks are prevented, safe use of the converter bottom is guaranteed, and the service life of the converter bottom is prolonged.
本发明提供了一种转炉活炉底镁碳砖砌筑用火泥，属于转炉炉衬耐火材料砌筑施工技术领域。该火泥含有镁砂粉和树脂，所述镁砂粉的粒度不大于0.5mm，所述树脂含有热固性树脂和热塑性树脂，所述树脂中热固性树脂和热塑性树脂的质量比为0.2～5。本发明选择适宜的镁砂粒度可使火泥涂抹时保持稳定的厚度，以吸收镁碳砖受热膨胀系数；两种树脂配合使用解决了单独使用热塑性树脂的受热发泡问题和单独使用热固性树脂固化速度快影响砌筑的问题。采用火泥砌筑使炉底镁碳砖在转炉炼钢过程受热树脂碳化形成碳链结构，既吸收了镁碳砖膨胀又使炉底镁碳砖形成牢固结合的整体，防止了炉底镁碳砖的松动和抽砖等事故，有利于保证转炉炉底的安全使用并延长使用寿命。
Fire clay for masonry of magnesia carbon bricks at movable bottom of converter
一种转炉活炉底镁碳砖砌筑用火泥
LYU RENXIANG (Autor:in) / LIU ZAICHUN (Autor:in) / LI QINGTAO (Autor:in) / JI HUAIJIE (Autor:in) / WU MINQIANG (Autor:in) / XU WENBIN (Autor:in)
26.11.2024
Patent
Elektronische Ressource
Chinesisch
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