Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Regeneration method of waste magnesia carbon bricks
The invention provides a preparation method of a modified magnesia carbon brick, which comprises the following steps: mixing waste magnesia carbon bricks used after steel cladding, magnesia, aldehyde acid resin, tar, metal aluminum powder and a natural binding agent to obtain a mixture: mixing the mixture to obtain a green body; and drying the green body in a kiln channel to obtain the modified magnesia carbon brick. The modified magnesia carbon brick for the high-temperature carbonization furnace, which is prepared by taking magnesia, tar and aluminum hydroxide materials as main raw materials, adding metal aluminum powder and using a natural organic binding agent, has the advantages of high temperature resistance, good slag resistance, oxidation resistance, thermal shock resistance and the like, so that less tar is added, decarburization of molten steel and smelting of ultra-low carbon steel are facilitated, and the service life of the brick is prolonged. The production cost is reduced, better economic benefits and social benefits are achieved, low carbon and environmental protection are better facilitated, and raw materials are utilized.
本发明提供了一种改性镁碳砖的制备方法，包括:将包钢用后镁碳废砖、镁砂、醛酸树脂、焦油、金属铝粉和天然结合剂混合,得到混合料:将所述混合物以获得坯体；将坯体在窑道中烘干，得到改性镁碳砖。本发明采用镁砂、焦油、氢氧化铝材料为主要原料,通过添加金属铝粉,并以天然有机结合剂制备的高温碳化炉用改性镁碳砖,具有耐高温、良好的抗渣性、抗氧化性和热震稳定性等优点，因此加入的焦油较少，有利于钢水脱碳，冶炼超低碳钢种，使生产成本降低，具有更好的经济效益和社会效益，更有利于低碳环保，使原料得以利用。
Regeneration method of waste magnesia carbon bricks
The invention provides a preparation method of a modified magnesia carbon brick, which comprises the following steps: mixing waste magnesia carbon bricks used after steel cladding, magnesia, aldehyde acid resin, tar, metal aluminum powder and a natural binding agent to obtain a mixture: mixing the mixture to obtain a green body; and drying the green body in a kiln channel to obtain the modified magnesia carbon brick. The modified magnesia carbon brick for the high-temperature carbonization furnace, which is prepared by taking magnesia, tar and aluminum hydroxide materials as main raw materials, adding metal aluminum powder and using a natural organic binding agent, has the advantages of high temperature resistance, good slag resistance, oxidation resistance, thermal shock resistance and the like, so that less tar is added, decarburization of molten steel and smelting of ultra-low carbon steel are facilitated, and the service life of the brick is prolonged. The production cost is reduced, better economic benefits and social benefits are achieved, low carbon and environmental protection are better facilitated, and raw materials are utilized.
本发明提供了一种改性镁碳砖的制备方法，包括:将包钢用后镁碳废砖、镁砂、醛酸树脂、焦油、金属铝粉和天然结合剂混合,得到混合料:将所述混合物以获得坯体；将坯体在窑道中烘干，得到改性镁碳砖。本发明采用镁砂、焦油、氢氧化铝材料为主要原料,通过添加金属铝粉,并以天然有机结合剂制备的高温碳化炉用改性镁碳砖,具有耐高温、良好的抗渣性、抗氧化性和热震稳定性等优点，因此加入的焦油较少，有利于钢水脱碳，冶炼超低碳钢种，使生产成本降低，具有更好的经济效益和社会效益，更有利于低碳环保，使原料得以利用。
Regeneration method of waste magnesia carbon bricks
一种废弃镁碳砖的再生方法
WANG CHENGLIN (Autor:in) / ZHAO XIANHUA (Autor:in) / JANG UI-SEON (Autor:in) / MA JIALIANG (Autor:in) / JIN ZHAO (Autor:in)
28.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Dry regeneration method for waste magnesia carbon bricks
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2022