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Slag adhesion prevention refractory castable, molten iron slagging-off plate prepared from slag adhesion prevention refractory castable and preparation method of molten iron slagging-off plate
The invention discloses an anti-sticking slag refractory castable, a molten iron slagging-off plate prepared from the anti-sticking slag refractory castable and a preparation method of the anti-sticking slag refractory castable, the anti-sticking slag refractory castable is prepared from aggregate, a carbon source and an additive, the aggregate comprises white corundum, silicon carbide and pyrophyllite, and the carbon source is amorphous graphite. The corrosion resistance and mechanical strength of the material are improved, and the slag bonding performance, high-temperature strength and thermal shock resistance of the material are improved. The amorphous graphite with high carbon content is used as a carbon source, and the amorphous graphite is not easily infiltrated by molten steel and molten slag, so that the wettability of the molten iron, the molten slag and a desulfurizing agent with the surface of a castable matrix is effectively reduced, and the bonded slag on the surface of the castable is reduced. In addition, graphite has the advantages of small thermal expansion coefficient, high thermal conductivity and the like, the thermal shock stability of the castable is remarkably improved, the working efficiency of the slagging-off plate is improved, and the quality of molten iron is optimized. The silica sol is adopted to modify the surface of the amorphous graphite, so that the porosity of the castable is reduced, and the mechanical property and the service performance of the castable are improved.
本发明公开了防粘渣耐火浇注料及制备的铁水扒渣板及制备方法，其中，防粘渣耐火浇注料，由骨料、碳源和添加剂制备而成，其中，骨料包括白刚玉、碳化硅和叶腊石，碳源为土状石墨。本发明提高了材料的抗侵蚀性能以及机械强度，改善了材料的粘渣性能、高温强度以及热震稳定性。本发明以碳含量高的土状石墨作为碳源，由于土状石墨不易被钢水及熔渣浸润，有效降低铁水、熔渣及脱硫剂与浇注料基质表面的浸润性，降低浇注料表面粘渣。此外，石墨具有热膨胀系数小和热导率高等优点，显著改善浇注料的热震稳定性，提高了扒渣板工作效率并优化铁水品质。本发明采用硅溶胶对土状石墨表面进行改性，使得浇注料的气孔率降低，提高了其力学性能及服役性能。
Slag adhesion prevention refractory castable, molten iron slagging-off plate prepared from slag adhesion prevention refractory castable and preparation method of molten iron slagging-off plate
The invention discloses an anti-sticking slag refractory castable, a molten iron slagging-off plate prepared from the anti-sticking slag refractory castable and a preparation method of the anti-sticking slag refractory castable, the anti-sticking slag refractory castable is prepared from aggregate, a carbon source and an additive, the aggregate comprises white corundum, silicon carbide and pyrophyllite, and the carbon source is amorphous graphite. The corrosion resistance and mechanical strength of the material are improved, and the slag bonding performance, high-temperature strength and thermal shock resistance of the material are improved. The amorphous graphite with high carbon content is used as a carbon source, and the amorphous graphite is not easily infiltrated by molten steel and molten slag, so that the wettability of the molten iron, the molten slag and a desulfurizing agent with the surface of a castable matrix is effectively reduced, and the bonded slag on the surface of the castable is reduced. In addition, graphite has the advantages of small thermal expansion coefficient, high thermal conductivity and the like, the thermal shock stability of the castable is remarkably improved, the working efficiency of the slagging-off plate is improved, and the quality of molten iron is optimized. The silica sol is adopted to modify the surface of the amorphous graphite, so that the porosity of the castable is reduced, and the mechanical property and the service performance of the castable are improved.
本发明公开了防粘渣耐火浇注料及制备的铁水扒渣板及制备方法，其中，防粘渣耐火浇注料，由骨料、碳源和添加剂制备而成，其中，骨料包括白刚玉、碳化硅和叶腊石，碳源为土状石墨。本发明提高了材料的抗侵蚀性能以及机械强度，改善了材料的粘渣性能、高温强度以及热震稳定性。本发明以碳含量高的土状石墨作为碳源，由于土状石墨不易被钢水及熔渣浸润，有效降低铁水、熔渣及脱硫剂与浇注料基质表面的浸润性，降低浇注料表面粘渣。此外，石墨具有热膨胀系数小和热导率高等优点，显著改善浇注料的热震稳定性，提高了扒渣板工作效率并优化铁水品质。本发明采用硅溶胶对土状石墨表面进行改性，使得浇注料的气孔率降低，提高了其力学性能及服役性能。
Slag adhesion prevention refractory castable, molten iron slagging-off plate prepared from slag adhesion prevention refractory castable and preparation method of molten iron slagging-off plate
一种防粘渣耐火浇注料及制备的铁水扒渣板及制备方法
LI MINGHUI (author) / CHANG BING (author) / CHEN RUOYU (author) / LI SAISAI (author) / HUANG ZHENYI (author) / LI CANHUA (author) / LI PEILIN (author)
2022-12-09
Patent
Electronic Resource
Chinese
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